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原位聚合法浇注型聚氨酯弹性体/纳米二氧化硅复合材料的性能

Properties of in-situ polymerized casting polyurethane/nano-silica composites

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【作者】 陈晓东周南桥欧阳伦炜张海

【Author】 Chen Xiaodong1,Zhou Nanqiao1,Ouyang Lunwei2,Zhang Hai2(1.Key Laboratory of Polymer Processing Engineering of Ministry of Education,National Engineering Research Center of Novel Equipment for Polymer Processing,South China University of Technology,Guangzhou 510640,China;2.Guangzhou SCUT Bestry Technology Joint-stock Co Ltd,South China University of Technology,Guangzhou 510640,China)

【机构】 华南理工大学聚合物新型装备国家工程研究中心聚合物成型加工工程教育部重点实验室华南理工大学华工百川科技股份有限公司

【摘要】 采用原位聚合法制备了浇注型聚氨酯弹性体(CPUE)/纳米SiO2复合材料,研究了牌号分别为Aerosil R 972和Aerosil 200的气相法纳米SiO2在基于聚四氢呋喃醚二醇(PTMG)、聚己内酯二醇(PCL)体系CPUE中的分散性、贮存稳定性以及复合材料的热稳定性和物理机械性能。结果表明,Aero-sil R 972在PTMG和PCL体系中均有较好的分散性和贮存稳定性;Aerosil 200在PCL体系中具有较好的分散性和贮存稳定性,而在PTMG体系中则相对较差。2种纳米SiO2的添加均能提高复合材料的热稳定性,并能显著增强、增韧和提高复合材料的高温使用性能。

【Abstract】 The casting polyurethane(CPUE)/nano-SiO2 composites were prepared via in-situ polymerization.The dispersity and storing stability of fumed nano-SiO2(Aerosil R 972 and Aerosil 200) in CPUE based on polytetramethylene glycol(PTMG) and poly(ε-caprolactone diol)(PCL),the thermal stability and mechanical properties of composites were investigated.The results showed that the dispersity and storing stability of Aerosil R 972 were better in both PTMG and PCL systems,Aerosil 200 was better in PCL system,but worse in PTMG system.The thermal stability of composites was improved when adding Aerosil R 972 and Aerosil 200,and high temperature performance of them was improved and reinforced significantly.

【基金】 国家自然科学基金重大资助项目(10590351)
  • 【文献出处】 合成橡胶工业 ,China Synthetic Rubber Industry , 编辑部邮箱 ,2009年02期
  • 【分类号】TQ334.1
  • 【被引频次】21
  • 【下载频次】546
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