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Copyright of Machine Tool & Hydraulics is the property of Guangzhou Mechanical Engineering Research Institute (GMERI) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The influence of different aluminum powder and dosage on the surface leveling, gloss and metal effect of the metallic powder coating has been investigated. Meanwhile, the effects of different polyester resin, additives (e.g., leveling agent, brightener, aluminum powder arrangement dispersant, etc.), extrusion processes, bonding processes, etc., on the metal effect of coating surface and the improvement of surface defects are discussed. It provides the theoretical basis for the production of metallic powder coatings and the solutions for the treatment of surface defects so as to ensure the quality of products. [ABSTRACT FROM AUTHOR]

In this paper, the effects of different carboxyl polyester resins, GMA acrylic resins, curing agents, hydroxyl polyester resins and curing accelerators on the surface effect, mechanical properties and cold oven gloss stability of polyester acrylic soft skin-like powder coatings were discussed. By optimizing and adjusting the formula, the skin effect of the coating surface and the stability of the cold oven gloss were improved, and the physical properties of the coating such as impact and bending resistance were improved, so as to provide theoretical and experimental basis for the production of polyester acrylic skin-like powder coating with good physical properties such as stable gloss, strong skin-touched feeling, impact and bending resistance. [ABSTRACT FROM AUTHOR]

Copyright of Diamond & Abrasives Engineering is the property of Zhengzhou Research Institute for Abrasives & Grinding and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Coatings & Protection / Tuceng yu Fanghu is the property of Coating & Protection Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Coatings & Protection / Tuceng yu Fanghu is the property of Coating & Protection Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In this paper, the effects of different polyester resins, epoxy resins, fillers, different additives and extrusion processes on the surface scratch resistance of polyester epoxy matt powder coating and the improvement of surface bright marks are described. By adjusting the formula and process, the anti-scratch performance of the coating is improved. meanwhile, the bright mark defect on surface of coating is modified, which is useful to ensure product quality. [ABSTRACT FROM AUTHOR]

Copyright of Coatings & Protection / Tuceng yu Fanghu is the property of Coating & Protection Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Coatings & Protection / Tuceng yu Fanghu is the property of Coating & Protection Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The powder surface coating technology might endow the powder with new physical and chemical properties. By electrophoretic deposition technology, diamond powder was modified on the surface coating of WC powders. The core-shell structure of diamond and the coating between diamond powder and WC powder were analyzed by different characterization methods. The influences of diamond powder content on coating effectiveness were studied, and the bonding strength among powders was compared under different coating processes. The results show that when the mass ratio of WC powder to diamond powder is as 6 : 1, the coating effectiveness is the best. The strong bonding force among the modified powders comes from the chemisorption formed by covalent bonds such as COO-W and C-O-W and the physical adsorption formed by van der Waals force. [ABSTRACT FROM AUTHOR]

Copyright of Coatings & Protection / Tuceng yu Fanghu is the property of Coating & Protection Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

It is important to precisely polish the inner surface of medical-grade TA1 pure titanium capillary tubes in order to reduce sample residue and enhance capillary pipetting precision, ultimately improving the accuracy and reliability of in vitro diagnostic equipment. To address the subpar inner surface quality of TA1 capillary tubes and the challenges associated with titanium material polishing, a novel chemically-assisted magnetic compound fluid polishing method was proposed. This method combines oxidation and mechanical removal to efficiently and precisely polish the inner surface of the tubes. Experimental studies were carried out to examine the effects of iron powder mass, hydrogen peroxide concentration and malic acid concentration on both the material removal rate and the inner surface roughness, with the aim of determining the optimal polishing parameters. The study involved the examination of surface morphology and elemental changes on the inner surface of capillary tubes both before and after polishing. This analysis aimed to assess the overall impact of the polishing technique on the inner surface of pure titanium capillary tubes. The results indicated that following a 90-minute polishing process under the specified conditions of 2 mg of iron powder, a hydrogen peroxide concentration of 7.2% and a malic acid concentration of 6%, the surface roughness of the TA1 capillary tube decreased from Ra 675 nm to Ra 75 nm. In the well-polished area devoid of initial dents, the surface roughness reached Ra 19.5 nm, with a material removal depth of up to 28 µm. Furthermore, the original surface scratches were effectively eliminated, both the depth and width of dents were significantly reduced, and no additional elements were introduced during the polishing process. [ABSTRACT FROM AUTHOR]

Copyright of China Plastics / Zhongguo Suliao is the property of Journal Office of CHINA PLASTICS and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Based on the alkali resistance of polyester/TGIC, polyester/HAA, polyester/epoxy and polyurethane powder coatings, the hydroxy-terminated polyester resin is modified by means of using some monomer containing steric groups and improving the crosslinking density. The results show that polyester/TGIC and polyester/HAA systems have the worst alkali resistance, polyester/epoxy system is slightly better, and polyurethane system is the best. The modified hydroxy-terminated polyester resin has good mechanical properties, adhesion, boiling water resistance and excellent alkali resistance. At 30 °C, soaked by 50%wt NaOH for 96 h, the gloss retention rate is 77% with no cracking and other defects. At 60 °C, soaked by 50%wt NaOH for 22 h, the gloss retention rate is 60% with no cracking and other defects. [ABSTRACT FROM AUTHOR]

Copyright of China Plastics / Zhongguo Suliao is the property of Journal Office of CHINA PLASTICS and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Coatings & Protection / Tuceng yu Fanghu is the property of Coating & Protection Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

To demonstrate the difference in moisture adsorption properties of fibers and the influence on the moisture adsorption properties of the five plant fibers ( conifer, broadleaf, flax, grass and bamboo) and one regenerated fiber ( Tencel), as well as the adaptability between moisture adsorption properties of fibers and coating performance of reconstituted tobacco for heated tobacco products, were studied. The results showed that the moisture adsorption properties of the six fibers were different. Tencel fiber performed the best, followed by bamboo fiber, and flax fiber performed the worst. The maximum adsorption rate and desorption rate of the fibers increased significantly with the increase of relative humidity during moisture migration. The parallel exponential dynamic model (PEK) was used to fit the moisture migration, it indicated that the progress consisted of a fast and a slow sorption procedure which occurred simultaneously. The fast procedure dominated the water migration behaviour in the sheet. As the relative humidity increased, the equilibrium moisture absorption content of the fast procedure increased and its characteristic time decreased. Meanwhile, the characteristic parameters of the slow procedure had no obvious rule with relative humidity. The micro-structure morphology, environmental conditions and other factors strongly influenced the moisture adsorption properties of fibers, the hygroscopic properties of fibers were positively correlated with the relative humidity ( RH), negatively correlated with the crystallization of cellulose, while the temperature showed a weak effect on it. It was found that the reconstituted tobacco sheet showed outstanding coating performance including water and coating liquid with the application of excellent hygroscopic fibers under the condition of adding the same amount ratio during application. [ABSTRACT FROM AUTHOR]

Copyright of Coatings & Protection / Tuceng yu Fanghu is the property of Coating & Protection Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In order to improve the application of copper powder in the field of microwave absorption, nickel coated copper powder and silver coated nickel coated copper composite powder were prepared by electroless plating method using copper powder as raw material. The phase composition and microstructure of composite powder was characterized by X-ray diffractometer, field emission scanning electron microscope. And the electromagnetic adsorption performance was tested by vector grid analyzer. The results show that the sample of nickel-coated copper powder with a thickness of 2.4 mm at 10.74 GHz has a RLmin of-21.09 dB and an effective absorption bandwidth of 0.08 GHz. The sample with a thickness of 2.6 mm at 10.78 GHz has a RLmin of-25.04 dB and an effective absorption bandwidth of 0.15 GHz. In the band of 8.2 ～12.4 GHz, the RLmin at 9.92 GHz is-55.36 dB and the effective absorption bandwidth is 4.2 GHz when the thickness of the sample is 2.6 mm. The thickness of the sample is 2.2～2.6 mm, and the reflection loss value in the whole X-band is less than-10 dB, which is the effective absorption bandwidth. Compared with nickel coated copper powder, silver coated copper coated powder has better microwave absorption performance, wider absorption frequency and wider thickness range. [ABSTRACT FROM AUTHOR]

In the precision machining of iron and steel parts, optical glass and battery materials, it is difficult to clean the superfine powder adsorbed on the surface in time and effectively. A water-soluble acrylic acid copolymer(DM-AA) dispersant was synthesized from maleic anhydride, n-butanol and acrylic acid. The effects of different ratio, amount of initiator and temperature on the dispersing properties of hyperdispersant were studied. The result showed that the optimum reaction conditions were determined: Reaction temperature 80 ℃, material ratio of dibutyl maleate to acrylic acid 1: 1. 5, the dosage of initiator was 2.2 g. DM-AA was characterized by mean of IR. The relative molecular weight of the product was 15 973.5. When the mass fraction of DM-AA was 2.3%, the dispersing effect tended to be stable and reached a high level, and the scale inhibition performance of the dispersant was tested, when the addition of DM-AA reached 10 mg/L, the scale inhibition effect reached the best state. [ABSTRACT FROM AUTHOR]

Copyright of Coatings & Protection / Tuceng yu Fanghu is the property of Coating & Protection Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Refractories / Naihuo Cailiao is the property of Naihuo Cailia (Refractories) Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Coatings & Protection / Tuceng yu Fanghu is the property of Coating & Protection Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Plastics / Zhongguo Suliao is the property of Journal Office of CHINA PLASTICS and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Coatings & Protection / Tuceng yu Fanghu is the property of Coating & Protection Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Combined with the formulation of alcohol-soluble inorganic zinc-rich coatings, and the influence of each component material on the properties of the inorganic zinc-rich coating film is systematically discussed. A series of experiments were conducted to investigate the influence of zinc powder, linear resin, content of pigments and fillers, degree of hydrolysis of ethyl silicate and other relevant factors on the properties of inorganic zinc-rich primer. Optimized coating formulation and curing process. A high-performance inorganic zinc-rich coating is prepared, which is easy to apply and has a wet film thickness of 200 microns without sagging. Dry film thicknesses up to 130μm does not crack. The formula is environmentally friendly, free of arsenic, cyanide and other heavy metals. After curing, the adhesion of the paint film reaches 3.5MPa, the corrosion resistance is more than 3500h, and the condensation resistance test is more than 30 days. The key performance is further improved. [ABSTRACT FROM AUTHOR]

Copyright of Coatings & Protection / Tuceng yu Fanghu is the property of Coating & Protection Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Plastics / Zhongguo Suliao is the property of Journal Office of CHINA PLASTICS and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

A zinc-rich epoxy paint was modified by graphene oxide slurry. The effects of the dosages of graphene oxide and zinc powder on anticorrosion performance of the coating were studied. The results showed that graphene oxide had a good effect on corrosion resistance of the enhanced coating. The content of zinc powder in the paint could be reduced from 80% to 60% by adding 0.3% of graphene oxide slurry, and the coating obtained had a 0-grade adhesion and was durable for at least 1 200 hours in neutral salt spray test. [ABSTRACT FROM AUTHOR]

Copyright of Packaging & Food Machinery is the property of Packaging & Food Machinery Magazine and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Pulp & Paper is the property of China Pulp & Paper Magazines Publisher and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Plastics / Zhongguo Suliao is the property of Journal Office of CHINA PLASTICS and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Using epoxy resin E44 as film・fomiing material, adding heat-conducting filler graphite powder, hexagonal boron nitride and appropriate curing agent, a two component heat-conducting anti ・corrosion coating was prepared by grinding method at room temperature, and the test plate was prepared by spraying method・ The properties of coatings prepared with different kinds and proportions of fillers were studied by conventional performance detection and electrochemical impedance spectroscopy・ The results show that the coating has good adhesion, hardness, flexibility and impact resistance. At the same time, the coating also has good thermal conductivity, excellent acid-base resistance and corrosion resistance, which has a broad application prospect in the field of heat exchanger corrosion protection. [ABSTRACT FROM AUTHOR]

Copyright of China Plastics / Zhongguo Suliao is the property of Journal Office of CHINA PLASTICS and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Electroplating & Finishing is the property of Electroplating & Finishing Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

This article reviews the research results of zinc-rich coatings prepared by modified zinc powder in recent years, and briefly introduces the anti-corrosion mechanism of zinc -rich coatings, focusing on physical coating modification, chemical modification, intercalation modification and rare earth soaking, etc, the modification methods are summarized. The effect of adding corrosion inhibitors, graphene and other fillers on the anticorrosive performance of zinc-rich anticorrosive coatings is described. Finally, the main problems in the preparation of zinc-rich coatings from modified zinc powder are analyzed to provide references for future research directions. [ABSTRACT FROM AUTHOR]

Copyright of Bulletin of the Chinese Ceramic Society is the property of Bulletin of the Chinese Ceramic Society Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Pulp & Paper is the property of China Pulp & Paper Magazines Publisher and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Coatings & Protection / Tuceng yu Fanghu is the property of Coating & Protection Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Coatings & Protection / Tuceng yu Fanghu is the property of Coating & Protection Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

OBJECTIVE: To probe into the mechanism of Xiaoer Qingrehuaji powder in the treatment of acute infantile convulsion. METHODS: Network pharmacology approach was adopted to construct biomolecular network related to Xiaoer Qingrehuaji powder and conduct bioinformatics annotation and analysis. Molecular docking on compounds with key targets in Xiaoer Qingrehuaji powder was performed with the help of AutoDock Vina software. RESULTS: A total of 122 potential active compounds, I 255 predicted targets and 1 023 targets related to pediatric acute convulsion were obtained from Xiaoer Qingrehuaji powder. Totally 304 potential targets for efficacy were derived from the " compound-target-disease" network, which had involved biological process including regulation of membrane potential, response to antibacterial drugs and regulation of chemical synaptic transmission; cellular components including ion channel complexes, transmembrane transport protein complexes and neuronal cell bodies; molecular functions including gated channel activity, ion channel activity and passive transmembrane transport protein activity; signal pathways including neuroactive ligand-receptor interaction, Alzheimer' s disease, MAPK and cAMP. Results of molecular docking showed good binding ability ( all Affinity <-5 kcaVmol) between 36 compounds and their corresponding key targets. CONCLUSIONS: The mechanism of Xiaoer Qingrehuaji powder in the treatment of pediatric acute convulsion may be related to biological function including regulation of membrane potential, neurological function regulation, neuroactive ligand-receptor interaction and inflammatory response, the targets of DRD2, OPRKI, GABBR2 and PIK3CA can be focused on. [ABSTRACT FROM AUTHOR]

In order to get good properties of nickel-plated aluminum powder, the nickel-plated aluminum powder was prepared by displacement reaction on the surface of the aluminum powder. The morphology and composition of the nickel-plated aluminum powder was characterized by scanning electron microscope, energy dispersion spectrometer and X-ray diffraction spectrometer. The apparent density, the tap density and pressure of the nickel-plated aluminum powder were tested by an apparent density tester, at ap density tester and a DC resistance tester. The results showed that when the single displacement temperature was 70°C and the concentration of nickel salt and reductant was 60g/L, the nickel-plated aluminum powder was coated completely and closely. The nickel content of the nickel-plated aluminum powder was 75.23%, the apparent density and tap density were 2.179g/cm³ and 2.547g/cm³, respectively. The compaction resistivity could reach 10.6mΩ·cm. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Henan University of Technology Natural Science Edition is the property of Henan University of Technology Journal Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Tunnel Construction / Suidao Jianshe (Zhong-Yingwen Ban) is the property of Tunnel Construction Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Rigid polyurethane insulation layer is widely used in construction, household appliances, automobiles and aerospace, and the preparation process of thermal insulation layer has an important impact on environment. Therefore, it is of great significance to evaluate the environmental impact of the preparation process. The environmental impacts of the preparation process was conducted using ReCiPe method. It is confirmed that the thermal insulation layer preparation process has the greatest environmental impact on marine eco-toxicity, followed by human toxicity, freshwater eco-toxicity, freshwater eutrophication and fossil depletion. Paint, electricity, polyurethane and polyurea contribute greatly to the environmental impact, and the environmental impact results are most sensitive to paint and electricity. The painting process, the polyurethane and the polyurea spray process contribute more than 70% of the total result. The key factors that reduce the environmental impact include considering the recycle of polyurethane in design phase, avoiding waste of polyurethane and polyuria, using powder paint, improving efficiency of electricity and increasing the proportion of clean energy. [ABSTRACT FROM AUTHOR]

The corrosion behavior of primid-curing solidified polyester powder coating defects in marine environment was investigated by CASS test, immersion test, electrochemical impedance spectroscopy (EIS) and scanning Kelvin probe (SKP). The results show that the primid-curing polyester powder coating has a small amount of blisters along the scratch edge, the maximu single side corrosion width is less than 0.5mm, and the surface adhesion is 0 after 240 hours' CASS test. The EIS map in 0.6mol/L NaCl solution exhibits that the corrosion rate of aluminu alloy is decreased with increasing immersion time and gradually stable. The scanning Kelvin spectrum reveals that the corrosion of the metal under the coating of the polyester powder is extended from scratch to the coating, the anode and the cathode are alternately changed, which leads to the expansion of the corrosion area.

A crucial question in restoration of coastal saltmarsh ecosystem is how to keep sustainable and evenly distributed seed banks, and approaches to enhance the seed settlement and germination. Thus, an urgent need is to develop a method by ameliorating the available conditions for seeds settlement and germination, thereby promoting the effectiveness of coastal vegetation restoration. Here, using an annual saltmarsh vegetation Suaeda salsa as a model species in the Yellow River Delta, we experimentally enveloped a thin layer outside each seed by three kinds of super absorbent materials, thereby testing their difference and providing an optimal selection for the restoration of Suaeda salsa. The materials we selected were polyacrylamide PAM, hydroxyethyl cellulose HEC, and hydroxypropyl methyl cellulose HPMC, which of each harbors the high ability in water absorption. Firstly, we coated the powder of each kind of absorbent material outside the seeds; secondly, we experimentally manipulated a gradient of water salinity to know the coated seed germination vary with the salinity; thirdly, we experimentally released 30 seeds for testing their mean suspension time and 20 seeds for the whole process of settlement; in the end, we investigated the seeds germination with different absorbent materials. Our results showed that, compared to the natural seeds dispersed to the bare ground, seeds that were enveloped by the water retaining materials (i.e. seed product) significantly harbored more water and maintained the water for a longer time. Our findings are that seed product coated by absorbent materials presented shorter suspension time and quick settlement within the sea water; the seed product significantly increased the germination rate and salt tolerance In addition, we observed that PAM, HPMC and HEC differed significantly in making contribution to the seed suspension, settlement, and seed germination, showing that the seed product with PAM is higher than HPMC, HEC and natural seeds, successively. Our study provides an available approach for governing the persistence of the coastal seed banks, with important management implication to use artificial seed products in the restoration of degraded saltmarsh ecosystems. [ABSTRACT FROM AUTHOR]

Copyright of Research of Environmental Sciences is the property of Research of Environmental Sciences Editorial Board and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In this paper, factors that influence the properties of Ti-B-C-N ceramic coating prepared by reactive spraying are reviewed. The effects of spraying process, powder preparation and formula on the properties of Ti-B-C-N coating are summarized, and future development and research trends of reactive sprayed Ti-B-C-N ceramic coating are discussed. It is deduced that proper spraying process, reasonable preparation method and formula of spraying powders are the key factors to prepare excellent coatings. [ABSTRACT FROM AUTHOR]