文献类型：期刊文献

英文题名：Effects of Functional Group on the Mechanical Properties of PA6/SiO2 Composites

作者：Liu, Juan[1];Yi, Hongling[1];Lin, Heng[1];Wei, Ting[1];Zheng, Baicun[1]

机构：[1]E China Univ Sci & Technol, Res & Dev Ctr Sports Mat, Shanghai 200237, Peoples R China

年份：2014

卷号：35

期号：3

起止页码：435

外文期刊名：POLYMER COMPOSITES

收录：;EI(收录号：20140817355928);WOS:【SCI-EXPANDED(收录号:WOS:000330959200003)】；

基金：Contract grant sponsor: Shanghai Science and Technology Committee; contract grant number: 10DZ2290600.

语种：英文

外文关键词：Hydrogen - Blending - Hydrogen bonds - Crystal structure

摘要：The polyamide-6 materials were mixed with nano-silica modified by γ-glycidoxypropyltrimethoxysilane (GPS) via a melt blending process. The idea was to study the correlation between content of GPS and PA6/silica interfacial interactions as well as mechanical properties of PA6/silica composites. The epoxy groups in GPS could react with -COOH and -NH2 in PA6 to produce the covalent bond and hydrogen bonding based on FTIR chart, TG analysis, and TEM analysis results. The DSC results show that nanosilica could encourage the formation of the hydrogen bonded structure of the α-PA6 crystals. However, the over GPS could confine the motion of polyamide-6 and decrease the generation of α-PA6 crystals resulted the decrease of mechanical properties. So the amount of epoxy groups grafted on nano-silica has a threshold effect on strength of PA6. POLYM. COMPOS., 35:435-440, 2014. ? 2013 Society of Plastics Engineers ? 2013 Society of Plastics Engineers.