纤维状凹凸棒增强尼龙6的微观结构及力学性能  

The microstructure and mechanical properties of fibrillar attapulgite reinforced nylon 6 nanocomposites

作　　者：史建设[1] 张春祥[1] 杨绪杰[1] 陆路德[1] 汪信[1] 

机构地区：[1]南京理工大学软化学与功能材料教育部重点实验室,江苏南京210094

出　　处：《功能材料》2010年第5期830-832,共3页Journal of Functional Materials

基　　金：国家自然科学基金委员会和中国工程物理研究院联合基金资助项目(10776014)

摘　　要：采用熔融共混的方法在双螺杆挤出机上制备尼龙6/凹凸棒(AT)纳米复合材料。利用X射线衍射仪(XRD)和扫描电镜(SEM)观察、分析了复合材料的晶体结构和断面相貌。通过微观组织相貌和结晶形态探讨了凹凸棒对尼龙6基体的增强机理,实验结果表明,复合材料的拉伸强度随凹凸棒含量的增加而增加,在凹凸棒质量分数为10%时,比纯尼龙6的拉伸强度提高了32.6%,复合材料的简支梁缺口冲击强度在凹凸棒质量分数为5%时达到最大,较纯尼龙6提高31%。材料的热稳定性也有一定程度的提高。The nylon 6/attapulgite nanocomposites were prepared by melt compounding in a twin-screw extruder. The crystallization structure and fractured surface of the composites were analyzed by X-ray diffraction patterning （XRD） and scanning electron microscopy （SEM）. The mechanism of attapulgite reinforced nylon 6 was explored. The results showed that the tensile strength of the composite increased with the increase of the content of the attapulgite,and was 32.6% higher than that of PA6 matrix when the content of AT gets to 10%,and the impact strength of the composite enhanced 31% compared with PA6 matrix,when the content of the attapulgite was 5%.The thermal properties improved with the attapulgite content increasing.

关 键 词：尼龙6 凹凸棒 微观结构 力学性能 

分 类 号：TB324[一般工业技术—材料科学与工程]