文档介绍：第33卷第1期非金属矿
2010年1月 Non-Metallic Mines January, 2010
煅烧高岭土表面改性及其在EPDM中的应用
朱平平1 王戈明2*
(1 河南省水文地质工程地质勘察院,河南郑州 450000;2 中国地质大学材料科学与化学工程学院,湖北武汉 430074)
摘要通过使用两种硅烷偶联剂(A-151、A-171) 对煅烧高岭土进行表面改性,研究改性剂用量、改性温度、改性时间、助剂用量对改性效果
即活化指数的影响。通过筛选得出两种改性试验的最优结果均为:偶联剂添加量 2%,改性温度 80℃,改性时间 30min、不添加助剂乙醇,活化指数
分别可以达到 % 和 %。并将改性后的高岭土作为填料填充到 EPDM 中,效果要优于高岭土,显著增强了 EPDM 复合材料的力学性能。
关键词高岭土表面改性三元乙丙橡胶
中图分类号:TD97;TQ333 文献标识码:A 文章编号:1000-8098(2010)01-0036-04
Surface Modiﬁ cation of Calcined Kaolin and Its Application in EPDM
Zhu Pingping1 Wang Geming2*
(1 Henan Hydrological Geology Engineering Geologic Examination Institute, Zhengzhou 450000; 2 Faculty of Material Science and Chemical
Engineering, China University of Geosciences, Wuhan 430074)
Abstract The surface modifications of calcined kaolin by using two kinds of silane coupling agent (A-151, A-171) have been carried out.
The inﬂ uences of the modiﬁ er dosage, the modiﬁ cation temperature, the modiﬁ cation time and the amount of additive on the modiﬁ cation effect (the
activation of Index) have been investigated. The optimal results of the two modiﬁ cation experiments obtained by screening are as following: the amount
of coupling agent is 2%, the modiﬁ ed temperature is 80 ℃, the modiﬁ cation time is 30min and without any additives ethanol, the activation indexes can
correspond to % and % r