黏土/天然橡胶纳米复合材料的制备及性能  

Preparation and structure of clay/natural rubber nanocomposites

作　　者：王益庆[1] 张惠峰[1] 吴友平[1] 杨军[2] 王雪飞[2] 张立群[1] 

机构地区：[1]北京化工大学北京高分子新材料制备与加工重点实验室 [2]株洲时代新材料科技股份有限公司,湖南株洲412007

出　　处：《合成橡胶工业》2005年第2期135-139,共5页China Synthetic Rubber Industry

基　　金："十五"攻关计划资助项目(2001BA310A12 );国家自然科学基金资助项目(05173003);北京市科技新星计划资助项目(H010410010112);北京市自然科学基金重点资助项目(2031001)。

摘　　要：　　利用乳液插层法制备了黏土 /天然橡胶纳米复合材料,研究了该复合材料的力学性能、应力应变行为、耐磨性、气体阻隔性和耐老化性能。结果表明,黏土 /天然橡胶纳米复合材料与高耐磨炭黑 (N330)、白炭黑增强橡胶相比,邵尔A型硬度、定伸应力和撕裂强度较高,拉伸强度相当。黏土、N330以及白炭黑对天然橡胶的拉伸结晶有影响,填料用量对材料拉伸强度的影响存在最佳值。黏土 /天然橡胶纳米复合材料具有良好的耐磨性、气体阻隔性和耐老化性能。Clay/natural rubber(NR)nanocomposites were prepared by co-coagulating latex and clay/water suspension. The mechanical properties, the behaviors of stress-strain, the resistance of abrasion, gas barrier and anti-air aging properties were investigated. The results showed that the clay/NR nanocomposites performed higher Shore A hardness, modulus at 300% and tear strength than the carbon black N 330 or silica filled NR. However the tensile strength was similar. The crystallization behavior of NR was affected by the addition of clay, N 330 or silica. The tensile strength of the nanocomposites was the highest at the clay optimal amount. Clay/NR nanocomposites exhibited better resistance of abrasion, excellent anti-aging and gas barrier property.

关 键 词：黏土 天然橡胶 纳米复合材料 力学性能 应力应变行为 耐磨性 气体阻隔性 耐老化性 

分 类 号：TQ332[化学工程—橡胶工业]