乳液插层法制备丁腈橡胶-有机蒙脱土纳米复合材料的结构与性能  

Structure and Properties of Acrylonitrile Butadiene Rubber-Organo Montmorillonite Nanocomposites Prepared by Emulsion Intercalation Method

作　　者：王立[1] 谷正[1,2] 宋国君[1] 李培耀[1] 李汉华[1] 罗鹏[1] 

机构地区：[1]青岛大学高分子材料研究所,山东青岛266071 [2]兰州大学化学化工学院,甘肃兰州730000

出　　处：《石油化工》2010年第8期924-928,共5页Petrochemical Technology

基　　金：青岛市科技计划基础研究项目(09-1-3-29-jch)

摘　　要：采用乳液插层法制备了丁腈橡胶(NBR)-有机蒙脱土(OMMT)纳米复合材料;用TEM技术对纳米复合材料的微观结构进行了表征;并研究了OMMT添加量对纳米复合材料的力学性能、耐溶剂性、耐低温性和热稳定性的影响。实验结果表明,用该法制备的NBR-OMMT纳米复合材料是一种插层型的纳米复合材料,其力学性能随OMMT添加量的增加而增强,具有优异的耐溶剂性和耐低温性。TG分析结果显示,添加30份(质量份数)OMMT时,纳米复合材料的最大降解率温度较NBR提高了约10℃,具有优异的热稳定性。Acrylonitrile butadiene rubber （NBR） -organo montmorillonite （OMMT） nanocomposites （NBR-OMMT） were prepared by emulsion intercalation method. Structures of the prepared NBR- OMMT nanocomposites were studied by means of TEM. Effects of OMMT content on mechanical properties, solvent resistance, low temperature resistance and thermal stability of the NBR-OMMT nanocomposites were investigated. The TEM results showed that the OMMT layers were intercalated into the NBR matrix. The mechanical properties of the NBR-OMMT nanocomposites were improved with increase of the OMMT content. The NBR-OMMT nanocomposites possessed excellent solvent resistance, low temperature resistance and thermal stability. The TG results indicated that temperature for the maximum decomposition rate of NBR-OMMT nanocomposites（ 30 phr） increased by 10 ℃, compared with pure NBR.

关 键 词：乳液插层法 丁腈橡胶 有机蒙脱土 纳米复合材料 耐溶剂性 耐低温性 

分 类 号：TQ333.2[化学工程—橡胶工业]