硅土/酚酞聚芳醚砜复合材料的制备及性能  

Preparation and Properties of Siliceous Earth/Phenolphthalein-Based Poly(arylene ether sulfone)Composites

作　　者：高丽敏 李璐 周光远[3] 王红华[3] 朱忠丽[1] GAO Limin;LI Lu;ZHOU Guangyuan;WANG Honghua;ZHU Zhongli(School of Chemistry&Environmental Engineering,Changchun University of Science and Technology,Changchun 130022,China;Division of Energy Materials,Dalian Institute of Chemistry Physics,Dalian,Liaoning 116000,China;Key Laboratory of Polymer Ecomaterials,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China)

机构地区：[1]长春理工大学化学与环境工程学院,长春130022 [2]中国科学院大连化学物理研究所,能源材料研究部,辽宁大连116000 [3]中国科学院长春应用化学研究所,生态环境高分子材料重点实验室,长春130022

出　　处：《应用化学》2020年第5期524-530,共7页Chinese Journal of Applied Chemistry

基　　金：广东省重点领域研发计划项目(2018B090906001)资助。

摘　　要：使用γ-氨丙基三乙氧基硅烷对硅土进行功能化改性,将功能化的硅土掺入酚酞聚芳醚砜(PES-C)中制备复合材料,并对其热学性能、力学性能及阻隔性能进行表征分析。结果表明,γ-氨丙基三乙氧基硅烷使硅土片层的层间距变大,使硅土处于半剥离状态,且通过溶液共混将表面修饰的片层硅土掺杂于PES-C中更有利于PES-C分子链的插入。所制备的复合材料的T-5%、T-10%和T max分别提升了10.2、10和3.9℃。另外,复合材料的拉伸强度提升8.4 MPa,断裂伸长率提升2.4%,模量提升560.7 MPa。复合材料的氧气渗透系数(P O 2)降低77.4%。Functional modification of siliceous earth withγ-aminopropyltriethoxysilane,and functionalized siliceous earth was blended into phenolphthalein-based poly(arylene ether sulfone)(PES-C)to prepare composite materials.And its thermal properties,mechanical properties and barrier properties were characterized and analyzed.The results showed that the surface modification ofγ-aminopropyltriethoxy increased the layers′pacing of siliceous earth and made the siliceous earth in the state of semi-stripping,and the doping of the surface modified siliceous earth into PES-C through solution blending was more conducive to the insertion of PES-C molecular chains.The 5%mass loss temperature(T-5%),the T-10%and the T max of the composites was increased by 10.2℃,10℃and 3.9℃,respectively.In addition,the tensile strength of the composite materials increased by 8.4 MPa,the breaking elongation increased by 2.4%,and the modulus increased by 560.7 MPa.The P O 2 of composites was reduced by 77.4%.

关 键 词：硅土 酚酞聚芳醚砜 复合材料 热学性能 力学性能 气体阻隔性能 

分 类 号：O631[理学—高分子化学]