丁腈橡胶/层板剥离水滑石纳米复合材料的制备及性能  

Preparation and properties of nitrile rubber/exfoliated hydrotalcite nanocomposites

作　　者：郭冰之[1] 赵芸[2] 刘嘉铭[1] 张勇[1] 王磊[1] 矫庆泽[1,2] 

机构地区：[1]北京理工大学珠海学院材料与环境学院,广东珠海519088 [2]北京理工大学化工与环境学院,北京100081

出　　处：《合成橡胶工业》2017年第3期217-220,共4页China Synthetic Rubber Industry

摘　　要：在辛烷/N-月桂酰基谷氨酸钠(LG)/水微乳液中制备了层板剥离水滑石(LDH-LG),然后采用共混法制备了丁腈橡胶(NBR)/LDH-LG纳米复合材料,研究了纳米复合材料的微观结构、硫化特性和拉伸性能。结果表明,LDH-LG在NBR基体中具有良好的分散性;当LDH-LG用量为3.0份时,NBR/LDH-LG纳米复合材料的结晶度、硫化速率指数和拉伸强度出现最大值,其中,硫化速率指数是纯NBR的5.4倍,拉伸强度较纯NBR提高了30.8%。Modified exfoliated hydrotalcite （ LDH- LG） was synthesized in a microemulsion of octane/ N-sodium lauroyl glutamate/water, the nitrile rubber （NBR）/LDH-LG nanocomposites were prepared by mechanical blending, and the microstructure, curing characteristics and tensile properties of the nanocom- posites were studied. The results showed that the ex- foliated LDH-LG nano-sheets dispersed well in NBR matrix. When the amount of LDH-LG was 3.0 phr,the crystallinity, curing rate index and tensile strength of NBR/LDH-LG nanocomposites reached the maximum values, the curing rate index was 5.4 times as high as that of pure NBR, and tensile strength increased by 30.8% compared with that of pure NBR.

关 键 词：水滑石 剥离 丁腈橡胶 纳米复合材料 硫化速率指数 拉伸性能 

分 类 号：TB332[一般工业技术—材料科学与工程] TQ333.7[化学工程—橡胶工业]