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Chitin nanocrystals reticulated self‐assembled architecture reinforces deproteinized natural rubber latex film
Author(s) -
Hu Jiarui,
Tian Xiaohui,
Sun Jinyu,
Yuan Jianyong,
Yuan Yizhong
Publication year - 2020
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.49173
Subject(s) - vulcanization , natural rubber , materials science , ultimate tensile strength , composite material , composite number , chitin , fibroin , aqueous solution , nanocrystal , polymer chemistry , chemical engineering , silk , chitosan , chemistry , nanotechnology , organic chemistry , engineering
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.