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Your search keyword '"Huang, Xianbo"' showing total 5 results
Start Over Author "Huang, Xianbo" Topic materials science
5 results on '"Huang, Xianbo"'

1. A trade-off between hardness and stretchability of associative networks during the sol-to-gel transition.

Author

Cao, Xiao, Peng, Li, Huang, Xianbo, and Chen, Quan

Subjects
HARDNESS, MATERIALS science, GELATION, TEST systems, VISCOELASTICITY, POLYMERS, POLYSTYRENE
Abstract

The trade-off between hardness and stretchability is a cornerstone of materials science. Balancing this trade-off is important in the molecular design of both chemical and physical networks. In this study, we report the quantitative trade-off at the molecular level for physical networks. Namely, we analyze, based on the reversible gelation model, a scaling relationship between the characteristic terminal relaxation modulus Gc in linear viscoelasticity and the stretch ratio λmax at the stress overshoot during the nonlinear elongation flow for unentangled randomly associative polymers, i.e., λmax ∼ Gc−0.17 and λmax ∼ Gc−0.33 in the mean-field and critical-percolation regimes, respectively. We use sulfonated polystyrene having different alkali counterions as a model system to test the relationship. The exponent of λmax ∼ Gc−0.25 seen in the experiment is in between the two theoretical values. We also discuss the quantitative deviation with respect to the size distribution of the network strands. [ABSTRACT FROM AUTHOR]

Published
2023
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2. An overview on synthesis, properties and applications of poly(butylene-adipate-co-terephthalate)–PBAT

Author

Zeng Xiangbin, Huang Xianbo, and Jiao Jian

Subjects
Terephthalic acid, Adipic acid, Materials science, Polymers and Plastics, Polymer science, Materials Science (miscellaneous), Environmental pollution, Biodegradation, Biodegradable polymer, Industrial and Manufacturing Engineering, lcsh:TP1080-1185, Polyester, chemistry.chemical_compound, lcsh:Polymers and polymer manufacture, Butanediol, chemistry, lcsh:TA1-2040, Adipate, Chemical Engineering (miscellaneous), lcsh:Engineering (General). Civil engineering (General)
Abstract

A significantly growing interest is to design new biodegradable polymers in order to solve fossil resources and environmental pollution problems associated with conventional plastics. A kind of new biodegradable polymers, aliphatic–aromatic co-polyesters have been researched widely and developed rapidly in recent years, since that can combine excellent biodegradability provided from aliphatic polyesters and good properties from aromatic polyesters. Out of which, poly (butylene-adipate-co-terephthalate) (PBAT) shows the most importance. PBAT has been commercialized by polycondensation reaction of butanediol (BDO), adipic acid (AA) and terephthalic acid (PTA) using general polyester manufacturing technology. And it has been considered to have desirable properties and competitive costs to be applied in many fields. Therefore, this review aims to present an overview on the synthesis, properties and applications of PBAT. Keywords: Biodegradation, Polyester, PBAT, Synthesis, Property, Application

Published
2020

4. Bisphenol-A epoxy resin reinforced and toughened by hyperbranched epoxy resin

Author

Jia De-min, Huang Xianbo, and Zhang Daohong

Subjects
Toughness, Thermogravimetric analysis, Materials science, Differential scanning calorimetry, Flexural strength, General Chemical Engineering, visual_art, Ultimate tensile strength, visual_art.visual_art_medium, Epoxy, Composite material, Thermal analysis, Glass transition
Abstract

The study on toughening and reinforcing of bisphenol-A epoxy resin is one of important developmental direction in the field. This paper reports a one-pot synthesis of aromatic polyester hyperbranched epoxy resin HTDE-2, an effect of HTDE-2 content on the mechanical and thermal performance of the bisphenol-A (E51)/HTDE-2 hybrid resin in detail. Fourier transform infrared (FT-IR) spectrometer, scanning electronic microscopy (SEM), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), dynamic mechanical thermal analysis (DMA) and molecular simulation technology are used to study the structure of HTDE-2, performance and toughening and reinforcing mechanism of the HTDE-2/E51 hybrid resin. It has been shown that the content of HTDE-2 has an important effect on the performance of the hybrid resin, and the performance of the HTDE-2/E51 blends has maximum with the increase in HTDE-2 content. The impact strength and fracture toughness of the hybrid resin with 9 wt-% HTDE-2 are almost 3.088 and 1.749 times of E51 performance respectively, furthermore, the tensile and flexural strength can also be enhanced about 20.7% and 14.2%, respectively. The glass transition temperature and thermal degradation temperature, however, are found to decrease to some extent.

Published
2007

5. Fluidity improvement of semiaromatic polyamides: Modification with oligomers

Author

Yi Qingfeng, Cao Min, Cai Tongmin, Zhang Chuanhui, Jiang Sujun, Xiangbin Zeng, and Huang Xianbo

Subjects
Terephthalic acid, chemistry.chemical_compound, Condensation polymer, Materials science, Polymers and Plastics, chemistry, Polyamide, Polymer chemistry, Materials Chemistry, Organic chemistry, General Chemistry, Surfaces, Coatings and Films, Benzoic acid
Abstract

Poly(decamethylene terephthalamide) PA10T with different relative viscosities (RV) were successfully produced by the reaction of 1,10-decanediamine and terephthalic acid through molecular weight regulator benzoic acid (BA). RV was shown to be decreased linearly with increasing BA concentrations and detailed structures of PA10Ts were characterized by 13C-NMR. Fluidity of PA10T with varying molecular weight was tested and low RV PA10Ts were used as modifiers to improve fluidity behaviors of high RV PA10Ts, meanwhile mechanical properties were maintained. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 40058.

Published
2013

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