纳米高岭土改性环氧树脂力学性能研究  

Research on nano Kaolin modified epoxy resin mechanical properties

作　　者：殷雨时[1,2] 范颖芳[1] 吴建鑫 徐广锋 YIN Yushi;FAN Yingfang;WU Jianxin;XU Guangfeng(Department of Civil Engineering,Dalian Maritime University,Dalian 116000,China;Liaoning Provincial College of Communications,Shenyang 110122,China;Beijing Hualian Technology Development Co.,Ltd.,Beijing 100089,China;New Development of Communications Group,Shenyang 110006,China)

机构地区：[1]大连海事大学土木工程系,辽宁大连116000 [2]辽宁省交通高等专科学校,辽宁沈阳110122 [3]北京中交华联科技发展有限公司,北京100089 [4]辽宁新发展交通集团,辽宁沈阳110006

出　　处：《混凝土》2019年第7期128-130,136,共4页Concrete

基　　金：国家自然科学基金项目“海洋环境下纳米粘土钢筋混凝土构件承载力和耐久性研究”（51578099）;辽宁省交通高等专科学校技术应用型项目“寒冷环境纳米高岭土增强预应力FRP-混凝土梁加固性能关键技术研究”（lnccjyky201701）

摘　　要：研究了插层技术在环氧树脂/纳米高岭土聚合物中的实现过程,采用X-射线衍射、透射电子显微镜(TEM)微观分析技术对改性环氧树脂材料性能进行了表征,并通过18块CFRP-混凝土正拉黏结试验,分析改性环氧树脂对CFRP-混凝土界面黏结性能的影响.结果表明:插层技术可以较好的在改性高岭土中实现,掺量为10%的高岭土在环氧树脂分散性最好,在CFRP-混凝土正拉抗剥离试验中,运用改性环氧树脂,可使剥离荷载提高近4倍,表现出良好的黏结能力。Layer technology is studied in the implementation process of epoxy/nano Kaolin polymer,the X-ray diffraction,transmission electron microscope(TEM),the microcosmic analysis technology had been used to characterize the performance of modified epoxy resin material,and through 18 pieces of CFRP and concrete pull off bonding test,the effect on modified epoxy resin on the properties of CFRP and concrete interface bonding is studied.Results show that the intercalation technology can be better in the implementation of the modified Kaolin,the dosage of 10%Kaolin in the epoxy resin dispersion is best,in which it influences anti-debonding experiment,using the modified epoxy resin,can make debonding load nearly four times higher,shows good bonding ability.

关 键 词：插层 高岭土 环氧树脂 正拉黏结 CFRP 界面 

分 类 号：TU528.01[建筑科学—建筑技术科学]