CaSO4晶须/天然橡胶复合材料的制备与性能研究  

Study on Properties and Preparation of Caso4-Whisker/Rubber Composites

作　　者：吴晓宇[1,2] 罗筑 杨诗润[1,2] 夏忠林 于杰[2] Xiaoyu Wu;Zhu Luo;Shirun Yang;Zhonglin Xia;Jie Yu(College of Materials and Metallurgy, Guizhou University, Guiyang;National Engineering Research Center for Compounding and Modification of Polymeric Materials, Guiyang)

机构地区：[1]国家复合改性聚合物材料工程技术研究中心,贵阳

出　　处：《化学工程与技术》2013年第2期65-71,共7页Hans Journal of Chemical Engineering and Technology

基　　金：贵州省重点科技攻关项目(黔科合GY字[2009]3010)。

摘　　要：用KH-560表面接枝处理CaSO4晶须,采用母炼胶法制备了CaSO4晶须/天然橡胶复合材料。研究了CaSO4晶须/NR复合材料的力学、磨耗及动态力学性能,与未处理的CaSO4晶须/NR复合材料性能比较,发现CaSO4晶须经表面接枝处理后,复合材料的拉伸强度、撕裂强度、300%定伸应力和邵尔A硬度均有提高,断裂伸长率和磨耗量减小,且横向磨损量比纵向小,其中经KH-560处理的晶须添加量为3份时复合材料横向磨损量为0.6499 cm?3/1.61km,磨耗性能最佳,而基体橡胶磨损量为0.7372 cm?3/1.61km。并用SEM对橡胶磨屑和橡胶磨损表面形貌用进行了分析;DMA表明CaSO4晶须经KH-560表面接枝处理后界面作用增强。In the experimental test CaSO4-whisker being treated by agent KH-560 has been added to the rubber com-posites. The mechanical properties, abrasion and attrition behavior and dynamic mechanical properties of the rubber composites have been studied, comparing with the rubber composites adding the CaSO4-whisker without coupling agent KH-560. The SEM patterns of abrasive dust and the rubber composites worm surface were analysed. The experiments showed that adding CaSO4-whisker being treated by coupling agent KH-560 to rubber composites got better interfacial adhesion,wear resistant, tensile strength, tear strength, stress at 300% elongation and shore hardness. Then wear resis-tant of rubber composites adding 3% CaSO4-whisker (weight ratio of the whisker to the rubber) being treated by cou-pling agent KH-560 was the best (0.6499 cm?3/1.61km, compared with 0.7372 cm?3/1.61km of rubber composites without CaSO4-whisker). DMA indicates that rubber composites adding CaSO4-whisker being treated by agent KH-560 have better interface adhesion than rubber composites adding CaSO4-whisker without treated.

关 键 词：CASO4晶须 天然橡胶 液体聚异戊二烯橡胶 偶联剂 界面粘合 

分 类 号：TB3[一般工业技术—材料科学与工程]