摘要
采用表面经硅烷偶联剂原位修饰的纳米二氧化硅(SiO2)通过熔融共混的方法制备了纳米SiO2/尼龙l010复合材料,测试了材料的力学性能,并通过扫描电镜(SEM)、透射电镜(TEM)、X射线衍射(XRD)、热失重(TGA)等分析手段考察了纳米SiO2在聚合物基体中的分散情况、热稳定性能及聚合物的结晶形态。实验结果表明,通过熔融共混方法制得的复合物,其力学性能较尼龙1010有较大提高,纳米SiO2在聚合物中达到了均匀分散,SiO2的加入使尼龙1010的热稳定性能稍有提高;同时起异相成核作用,使晶体尺寸减小,γ晶型有所增加。
Nylon 1010/nano-silica composites were surface-modified by silane in situ and their mechanical prepared by melt blending method with a novel nano-silica properties were investigated. The dispersion of nano-silica in the nylonl010 matrix, thermostability, crystal form of the nanocomposites were investigated by means of the scanning electron microscopy （SEM）, transmission electron microscopy （TEM）, thermogravimetric analysis （TGA） and X-ray diffraction （XRD）. The results show that the nano-silica disperses homogeneously in the composite, the mechanical properties of the nylon 1010/nano-silica composites are superior to that of nylon 1010; The addition of nano- silica results in the improved thermostability of the composites of nylon 1010, the decreased crystal grain size and more γ-forms of PAl010 nanocomposites.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2009年第8期130-133,共4页
Polymer Materials Science & Engineering
基金
国家高技术研究发展计划(863)资助项目(2002AA302607)
