文献类型：期刊文献

英文题名：Chitin nanocrystals reticulated self-assembled architecture reinforces deproteinized natural rubber latex film

作者：Hu, Jiarui[1];Tian, Xiaohui[1];Sun, Jinyu[1];Yuan, Jianyong[1];Yuan, Yizhong[1]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai Key Lab Adv Polymer Mat, Shanghai, Peoples R China

年份：2020

卷号：137

期号：39

外文期刊名：JOURNAL OF APPLIED POLYMER SCIENCE

收录：;EI(收录号：20201408376047);WOS:【SCI-EXPANDED(收录号:WOS:000522524200001)】；

基金：Chinese Government Scholarship, Grant/Award Number: 201806745035; Fundamental Research Funds for the Central Universities of China, Grant/Award Number: 22A201514002; Shanghai Leading Academic Discipline Project, Grant/Award Number: B502

语种：英文

外文关键词：Rubber - Tensile strength - Nanocrystals - Suspensions (fluids) - Composite films

摘要：Natural rubber (NR) latex was initially deproteinized, then, the interactions between chitin nanocrystals (ChNCs) and deproteinized natural rubber (DNR) latex particles in an aqueous system and the properties of DNR/ChNCs composites were investigated. Composite films were obtained by casting and evaporating off the prevulcanized DNR/ChNCs complexation rather than simply mixing of DNR latex and ChNCs suspension. The results of DLS and TEM confirmed that this kind of complexation was formed between negative charged DNR and positively charged ChNCs by self-assembly. The tensile strength of composite films containing 4 wt% ChNCs was 25.00 +/- 1.42 MPa, which was 3.11 multiples of the pure pre-vulcanized DNR. DNR/ChNCs composite films could provide excellent mechanical properties and avoid allergies caused by proteins in NR latex.