文献类型：期刊文献

英文题名：Mechanical Properties and Thermal Resistance of Natural Rubber Nanocomposite Reinforced with Quaternized Polyvinyl Alcohol/Silica Nanoclusters

作者：Liu, Jin[1];Tian, Xiaohui[1];Sun, Jinyu[1];Wang, Shuyi[1];Duan, Junchao[1]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China

年份：2016

卷号：43

起止页码：46

外文期刊名：JOURNAL OF NANO RESEARCH

收录：;EI(收录号：20163902847379);WOS:【SCI-EXPANDED(收录号:WOS:000395994700006)】；

基金：This work has been supported by Fundamental Research Funds for the Central Universities (22A201514002).

语种：英文

外文关键词：Mechanical properties; Thermal resistance; Natural rubber; Silica

摘要：Quaternized polyvinyl alcohol (QPVA) was synthesized and used as an intermedium to improve dispersion of silica (SiO2) in natural rubber (NR). QPVA/SiO2 nanoclusters reinforced NR nanocomposite was prepared by latex compounding via electrostatic interaction. TEM micrographs demonstrated QPVA/SiO2 nanoclusters were distributed around NR particles, forming shell-core structure. The mechanical properties and thermal ageing resistance of NR-QPVA/SiO2 were significantly improved compared with that of neat NR. The tensile strength of NR-QPVA/SiO2 film was improved by 60%, when the SiO2 content is 3%. SEM pictures indicated SiO2 was homogenous dispersed throughout NR matrix in the presence of QPVA. It also demonstrated that SiO2 could enhance thermal stability of NR, as NR-QPVA/SiO2 had best surface morphology after 72 hours thermal ageing at 100 degrees C. The thermal decomposition temperature and glass transition temperature of NR-QPVA/SiO2 film increased to a higher temperature due to strong polymer-filler interaction, which also indicated that all the ingredients were compatible and homogenous.