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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 Polymer Materials Science & Engineering is the property of Sichuan University, Polymer Research Institute 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 Polymer Materials Science & Engineering is the property of Sichuan University, Polymer Research Institute 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 Acta Materiae Compositae Sinica is the property of Acta Materiea Compositae Sinica 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 Polymer Materials Science & Engineering is the property of Sichuan University, Polymer Research Institute 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 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.)

In this paper, the rheological, electrical and mechanical properties of silver paste with different blends of epoxy resin and polyester resin were studied. The thixotropy and thixotropy recovery rate of resin silver paste were studied by rheometer, and the effect of rheology on printing film was discussed. In situ curving resistance test method was used to monitor the change of thermal curing resistance of silver resin paste. The results showed that the content of epoxy resin in silver paste had great influence on the resistance. The adhesion strength of resin silver paste on Al2O3 substrate was evaluated by the thrust test method, and the thermal impact performance of resin silver paste was evaluated. The results showed that when the ratio of epoxy resin to polyester resin was 1:0.6, the viscosity of C-1 silver paste was moderate, the thixotropic recovery rate was 58.03% after 10 s, and the printing surface was flat. After curing at 200 ℃ for 30 min, the resistance is about 2 Ω, the adhesion strength is about 10 N/mm², and the adhesion strength is not significantly deteriorated after thermal shock at 260 ℃. The comprehensive performance is better, and it is suitable for the process requirements of electronic components. [ABSTRACT FROM AUTHOR]

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 Paint & Coatings Industry (0253-4312) is the property of Paint & Coatings Industry 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.)

Tn this paper, different contents (0.25%, 0.5%, 0.75% and 1%) of graphene nanoplatelets (GNP) were used to modify epoxy resin adhesive. Through double-sided shear tests of carbon fiber reinforced concrete structures, the change of adhesive properties before and after GNP modification under different time of immersion aging (2, 4, 6, 8 weeks) was studied, and the influence of graphene nanoplatelets modification on the durability of adhesive joint was investigated. The test results show that both the interfacial bonding strength and the maximum slip displacement increase first and then decrease with the increase of GNP content under the nonimmersion and immersion aging tests, and 0.5% GNP has the largest increase rate for interfacial bonding strength under each working condition. After 8 weeks of immersion aging, ().5% GNP increases the bonding strength and maximum slip by 54.1 % and 53.66% respectively. After 8 weeks of aging, the bonding strength of unmodified adhesive decreases by 15.19% compared with the non-aging environment, while 0.5% GNIVEpoxy adhesive only decreases by 10.47%. The GNP reinforced adhesive could not only improve the adhesive joints strength, but also reduce the diffusion of water molecules into adhesive and interface. This paper provides some reference for the application of GNP reinforced adhesive to enhance durability of the carbon fiber bonded concrete structure. [ABSTRACT FROM AUTHOR]

Copyright of Polymer Materials Science & Engineering is the property of Sichuan University, Polymer Research Institute 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 Polymer Materials Science & Engineering is the property of Sichuan University, Polymer Research Institute 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 Acta Materiae Compositae Sinica is the property of Acta Materiea Compositae Sinica 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 Zhejiang Electric Power is the property of Zhejiang Electric Power 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 Chinese Journal of Applied Chemistry is the property of Chinese Journal of Applied Chemistry 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 Drilling Fluid & Completion Fluid is the property of Drilling Fluid & Completion Fluid 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 Acta Materiae Compositae Sinica is the property of Acta Materiea Compositae Sinica 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 Acta Materiae Compositae Sinica is the property of Acta Materiea Compositae Sinica 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 Natural Gas Industry is the property of Natural Gas Industry Journal Agency 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 introduction of phosphorus elements inside the epoxy resin by chemical modification can effectively improve its liquid oxygen compatibility, and this will also change the chemical properties of the epoxy resin, but the change of chemical properties remains to be studied. Since it is difficult to characterize some chemical properties in experimental studies, this paper made an in-depth study of the chemical properties of 10-(2,5-dihydroxyphenyl)-10-hydro-9-oxa-10-phospha-phenanthrene-10-oxide (ODOPB) modified epoxy resin molecules based on the density functional theory (DFT). In order to analyze the effect of chemical properties on grafting ODOPB functional groups into the epoxy resin molecules, the relevant properties of unmodified epoxy resin molecules were also studied and compared. The results showed that the bond dissociation energy and Laplace bond order on the main chain of the epoxy resin molecule increased after ODOPB modification, and the maximum values of the electrostatic potential and average local ionization energy decreased, indicating that grafting ODOPB can improve the thermal stability and liquid oxygen compatibility of the epoxy resin. This study provides the theoretical basis for the study of the ODOPB modified epoxy resin liquid oxygen compatibility mechanism on the molecular level. [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.)

Aiming at the problems of insufficient flexural strength and low durability of cement concrete, this paper prepared concrete with different content of epoxy resin（0%, 3 wt%, 6 wt%, 9 wt%） by using epoxy resin as doping phase, and analyzed the influence of epoxy resin on the mechanical properties, micro appearance and durability of cement concrete. The results show that the doping of epoxy resin accelerates the hydration reaction, reduces the number of cracks and pores, and improves the density of concrete. The compressive strength and flexural strength both increased first and then decreased with the increase of resin doping. The compressive strength and flexural strength of the concrete with 6 wt% epoxy resin doping reached the maximum values of 43.8 and 7.9 Mpa respectively when cured for 28 d, which increased by 18.70% and 29.51% respectively compared with the concrete without resin doping. The chloride ion diffusion coefficient of concrete decreases first and then increases with the increase of resin doping amount. The chloride ion diffusion coefficient of concrete with 6 wt% epoxy resin doping content for 28 d is the lowest of 7.7×10-8 cm/s, and the chloride ion corrosion resistance is the best. When the number of freeze-thaw cycles reaches 80, the concrete with 6 wt% epoxy resin doping has the lowest mass loss rate of-0.13%, the highest relative dynamic elastic modulus of 94.86%, the lowest wear amount of 0.66 kg/m², and the wear amount reduction rate of 46.77%. It has excellent durability. [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 Journal of Functional Materials / Gongneng Cailiao is the property of Chongqing Functional Materials Periodical Press 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 paper introduced the elementary properties of epoxy resin and reviewed the development methods for new types of the high heat-resistant epoxy resins such as the blending modification with small organic molecules, organic resins and nano particles as well as the chemical methods for the synthesis of heat-resistant epoxy resins with new molecular structures. The paper also summarized the application research on high heat-resistant epoxy resins in different fields such as wear-resistant materials, coating coatings, electronic packaging materials, etc, and the development direction in future was prospected. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Materials Engineering / Cailiao Gongcheng is the property of Journal of Materials Engineering 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 Journal of Aeronautical Materials is the property of Editorial Board of Journal of Aeronautical Materials 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 Journal of Beijing University of Technology is the property of Journal of Beijing University of Technology, 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.)

The thermal conductivity of the insulating material in electrical equipment affects the heat dissipation capacity and the temperature rise distribution, thereby restricting the capacity and lifetime. In the design and development section of the electrical equipment, it is critical to accurately measure the thermal conductivity of the insulating materials used. This Paper summarizes several measure methods and highlights the principle of heat flow method. Taking three kind of insulating materials, we measured the thermal conductivity and processed the data. Due to the characteristics of irregular shape material in the motor, this paper puts forward an indirect method. This study has a certain theoretical and practical engineering significance. [ABSTRACT FROM AUTHOR]

Copyright of Acta Materiae Compositae Sinica is the property of Acta Materiea Compositae Sinica 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 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 China Textile Leader is the property of China Textile Information Center 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 reduce the thermal expansion coefficient of epoxy resin, in this paper a low thermal expansion LaFe10.5Co1.0Si1.5/epoxy resin composite material is prepared based on the negative thermal expansion filler LaFe10.5Co1.0Si1.5. Then the influence of LaFe10.5Co1.0Si1.5 filler content on the mechanical properties and thermal expansion properties of the materials is studied. And the gradient distribution of filler particles in the resin matrix is induced by the magnetic field driving method to prepare functional materials with gradient thermal expansion. The results show that LaFe10.5Co1.0Si1.5 can effectively reduce the linear expansion coefficient of epoxy resin-based composites between 228-323 K, and the linear expansion coefficient of the composites can be reduced by 58% when adding 70% LaFe10.5Co1.0Si1.5 filler. In addition, the variation regularities of TGA, thermal conductivity, tensile strength and other properties prove that LaFe10.5Co1.0Si1.5 particles show a gradient distribution along the direction of the magnetic field driven by an external magnetic field. Meanwhile, the thermal expansion properties of the composite materials also show a significant gradient change. These prove that the magnetic field driving method is an effective and simple method for preparing low thermal expansion epoxy gradient materials. [ABSTRACT FROM AUTHOR]

Copyright of Electric Machines & Control / Dianji Yu Kongzhi Xuebao is the property of Electric Machines & Control 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.)

This paper reviewed the research progress in the modification of epoxy resin with hyperbranched polyesters (HBPEs). The synthetic methods of hyclroxyl-terminated/carboxyl-terminated/epoxy-terminated/amino-terminated HBPEs were summarized at first. The research progress in the impact modification of epoxy resins by the HBPEs with different end groups and their toughening mechanism was introduced. The influence of the HBPEs with different end groups on the curing properties of epoxy resin was also discussed. In addition, the problems in the modification of epoxy resins with HBPEs were analyzed. The research directions in future will focus on the green synthetic methods of HBPEs with a low cost as well as the multifunctionalization of HBPEs. [ABSTRACT FROM AUTHOR]

During operation， hydraulic turbines are continuously subjected to long-term impact from sediment-laden water flows.The combined damage from sediment erosion and cavitationerosion significantly impairs the flow components，compromising the safe and stable operation of the unit.Surface protection of the flow components by means of high-elastic polymer coatings is an economical and practical strategy.In this paper，firstly， the anti-cavitation protective polymer coatings on the surfaces of flow components were reviewed， especially research progress on polyurethane and epoxy resin coatings.Considering the important influence of the erosive and abrasive effects of sediment-laden water flows in the damage of hydraulic turbines，the research progress of polymer/ceramic composite coatings in the synergistic resistance to cavitation and erosion was reviewed； finally， the problems of polymer coatings in the protection of hydraulic turbine flow components were described.

This paper reviewed the recent research progress in the addition-type flame retardants based on 9, 10-dihydro-9-oxa-10-phosphenanthrene-10-oxide (DOPO) for epoxy resins as well as the reactive flame- retardant curing agents involved in the reaction between the P-H bond and the C=N, C=O and C=C bonds. The performance characteristics and relevant mechanisms of each flame-retardant system are summarized. Moreover, the future trend in development of DOPO-based flame-retardant epoxy resins was prospected. [ABSTRACT FROM AUTHOR]

Epoxy resin material has the characteristics of light weight, low cost, easy to scale production, high strength, corrosion resistance and insulation properties, thus it has been widely used in electrical and electronic materials. In this paper, the development of epoxy resin was reviewed, including inorganic blending modification, organic blending modification, chemical synthesis modification and so on. The application progress of epoxy resin in the field of electrical and electronic materials was also summarized, and its future research direction was prospected. [ABSTRACT FROM AUTHOR]

In this paper, a kind of ultrasonic transmission composite material is studied. Epoxy resin is used as adhesive material, metal powder with small acoustic impedance is added to improve the ultrasonic conductive performance, liquid rubber CTBN is added to toughen and modify, mercaptan curing and fatty amine accelerator are added to shorten the curing time, and a kind of composite material with good adhesive viscosity, good toughness, short curing time and ultrasonic penetration is developed functional composite materials with strong overactivity. It provides a solution to the problem that the transmission channel of the real-time monitoring system of ultrasonic rail breaking is cut off and the monitoring function cannot be played. [ABSTRACT FROM AUTHOR]

Copyright of Acta Materiae Compositae Sinica is the property of Acta Materiea Compositae Sinica 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 Industrial Water Treatment is the property of CNOOC Tianjin Chemical Research & Design Institute 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 Acta Materiae Compositae Sinica is the property of Acta Materiea Compositae Sinica 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 Acta Materiae Compositae Sinica is the property of Acta Materiea Compositae Sinica 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 China Textile Leader is the property of China Textile Information Center 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.)

Epoxy resin-impregnated insulating paper （RIP）， the main insulation of wall bushings， is characterized by its uneven electric field distribution. The causes of insulation breakdown of the wall bushing in a flexible DC converter station are analyzed. Furthermore， the method of adding nano-SiO2 （silicon dioxide） to modify epoxy resin is adopted to improve the electrical and thermal properties of the bushing in view of the material characteristics of the epoxy resin core. The experiments show that the relative dielectric constant of the cured epoxy resin decreases to 4.23 （at 50 Hz）， the dielectric loss factor is 0.002 （at 50 Hz）， the breakdown field strength reaches 31 kV/mm， and the volume resistivity is 3.7×1013 Ω·m when the nano-SiO2 is added with a mass fraction of 4%. The effects of nano-SiO2 on the basic physical characteristics and main electrothermal characteristics of epoxy resin are summarized to further improve the electrical insulation properties of the wall bushing material.

To reduce environmental pollution and improve the utilization rate of corn straw, the modified corn straw/epoxy resin biomass composites were prepared by using palm acyl chloride-modified corn straw as a filler and epoxy resin (EP) as a matrix resin. FTIR and XPS were used to characterize the structure of the straw before and after modification, the electronic universal testing machine was used to analyze the mechanical properties of the composites, and the SEM was used to analyze the micro morphology of the composites. The results show that there is a new C=O characteristic stretching vibration peak at 1 754 cm-1 in the FTIR spectrum; In XPS energy spectrum, the contents of C1 (C=C, C--C) and C2 (C--O) decreased from 47.85 % and 40.24 % to 41.30 % and 30.64 %, respectively, and the contents of C3 (C=O) and C4 (C--O---C) increased from 9.12 % and 2.79 % to 20.56 % and 7.20 %, respectively. This indicates that the hydrophobicity of modified corn straw was enhanced and its compatibility with epoxy resin was improved. According to the analysis of mechanical properties, the tensile properties of epoxy resin composites increased by 100.3 % and 157.77 % compared with pure epoxy resin. Their bending strength increased at first and then tended to decrease. Compared to pure epoxy resin, the composites presented a maximum increase in impact strength by 16.8 % and 70.53 % when 10 wt % unmodified straw and 15 wt % modified straw were incorporated, respectively. [ABSTRACT FROM AUTHOR]