黏土/炭黑/天然橡胶纳米复合材料的抗裂纹增长和耐破坏性能  

Cut growth resistance and fracture resistance of clay/carbon black/natural rubber nanocomposites

作　　者：吴晓辉[1] 何少剑[1] 王益庆[1,2] 李昭[3] 冯耀岭[3] 张立群[1,2] 

机构地区：[1]北京化工大学北京市新型高分子材料制备与加工重点实验室,北京100029 [2]北京化工大学教育部纳米材料制备与应用科学重点实验室,北京100029 [3]风神轮胎股份有限公司,河南焦作454003

出　　处：《合成橡胶工业》2011年第1期22-28,共7页China Synthetic Rubber Industry

摘　　要：用多种预割口实验方法研究了黏土/炭黑/天然橡胶纳米复合材料在静态和动态情况下的抗裂纹增长和耐破坏性能。结果表明,少量纳米黏土的加入能够有效地增加裂纹尖端的钝化支化倾向,从而阻碍裂纹的增长,提高天然橡胶的耐破坏能力;用动态耐切割试验机研究抗崩花掉块性能的结果表明,少量纳米黏土的加入可以提高复合材料抗崩花掉块的能力,改善其耐切割性能;纳米黏土的加入还提高了复合材料的耐磨性能和耐屈挠疲劳性能。Various precut methods were employed to study the cut growth resistance and fracture resistance under static and dynamic conditions of clay/carbon black/natural rubber nano-composites.The results showed that the addition of clay could effectively blunt the crack in the vicinity of the original cut tip and hinder the crack from growing,therefore improved the fracture resistance of natural rubber.Cut and chip tester was used to study the cut and chip resistance and the result showed that cut and chip resistance could be improved with the addition of clay.Adding of clay could improve the abrasion resistance and the flex fatigue life of the composites.

关 键 词：黏土 天然橡胶 抗裂纹增长 破坏 疲劳 耐切割性能 

分 类 号：TQ330.1[化学工程—橡胶工业]