端硅氧烷基低聚物改性环氧树脂的形态研究  

Morphology of Epoxy Resin/Siloxane-Terminated Organic Oligomers Composites

作　　者：唐忠锋[1,2] 刘平桂[3] 

机构地区：[1]广西工学院生物与化学工程系,广西柳州545006 [2]中国科学院上海应用物理研究所,上海201800 [3]北京航空材料研究院,北京100095

出　　处：《塑料》2009年第2期92-94,18,共4页Plastics

基　　金：广西工学院院科硕(05016);航空基础科学基金资助项目(04H21009)

摘　　要：通过溶胶-凝胶技术,利用端硅氧烷基低聚物(TPSi)对环氧树脂(EP)进行改性。研究TPSi改性EP固化样的拉伸性能,并利用扫描电镜观察断面的微观形貌。研究表明:与EP固化样相比,TPSi改性EP固化样中,当TPSi的含量为0%～30%时,其拉伸强度、断裂伸长率增大。偶联剂KBE-9103的加入,使试样的拉伸强度、断裂伸长率增加。微小孔洞和撕裂棱的存在导致材料的性能提高。Epoxy resin was modified with siloxane-terminated oligomers by sol-gel technology. The tensile performances and the morphology of composites were investigated with various methods. It showed that the tensile strength and elongation at break of composites were improved evidently,when 0 % -30 % oligomers were composited in the system. The tensile strength and elongation at break of composites were improved when KBE-9103 was added in the samples. The properties of materials were improved due to micro-porous cavities and tearing edges.

关 键 词：环氧树脂 端硅氧烷基低聚物 拉伸强度 扫描电镜 微观形貌 

分 类 号：TB332[一般工业技术—材料科学与工程]