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2篇 您的检索式:作者名="Yangben Cai"
    题名 作者 年代 出处 被引量
1Preparation of a Crosslinked Chitosan Coated Calcium Sulfate Whisker and Its Reinforcement in Polyvinyl Chloride显示文摘A calcium sulfate whisker(CSW) coated with glutaraldehyde crosslinked chitosan(GACS) was prepared to reinforce polyvinyl chloride(PVC) in this study. The results show that the optimum concentration of both chitosan(CS) and glutaraldehyde(GA) is 0.05 wt%. The tensile strength, impact strength, flexural modulus and vicat softening temperature of the PVC composite with 12 wt% of modified CSW are increased by 17.5%, 40.4%, 0.8% and 3.8% compared with those of the PVC composite with 12 wt% of unmodified CSW, and by 2.9%, 42.4%, 27.1% and 6.8% compared with those of pure PVC, respectively. The dynamic mechanical analysis results indicate that the modified CSW/PVC composite exhibits much higher storage modulus and glass transition temperature than those of unmodified CSW/PVC composite and pure PVC.In addition, the modified CSW/PVC composite also demonstrates good thermal properties with a high rapidest decomposition temperature(Trpd) and char residue. The scanning electron microscopy images of tensile-fractured surfaces show that the modified CSW has a strong interfacial adhesion with PVC matrix.Jiayang Cui Yangben Cai Wenjin Yuan Zhongfei Lv Shiai Xu 2016Journal of Materials Science & Technology2016,32,8:12
2Modified silicon carbide whisker reinforced polybenzimidazole used for high temperature proton exchange membrane显示文摘Polybenzimidazole containing ether bond(OPBI) was reinforced with silicon carbide whisker(m Si C) modified by 3-aminopropyltriethoxysilane(KH550), and then doped with phosphoric acid(PA) to obtain OPBI/m Si C/PA membranes. These OPBI/m Si C/PA membranes have excellent mechanical strength and oxidative stability and can be used for high temperature proton exchange membrane(HT-PEM). The tensile strength of OPBI/m Si C/PA membranes ranges from 27.3 to 36.8 MPa, and it increases at first and then decreases with the increase of m Si C content. The high m Si C content and PA doping level contribute to improving the proton conductivity of membranes. The proton conductivity of PBI/m Si C-10/PA membrane is 27.1 m S cm-1 at 170 °C without humidity, with an increase of 55.7% compared with that of OPBI/PA membrane. These excellent properties make OPBI/m Si C/PA membranes promising membrane materials for HT-PEM applications.Yangben Cai Zhouying Yue Qianlu Jiang Shiai Xu 2018Journal of Energy Chemistry2018,27,3:1
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