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Novel self‐crosslinking film from hydrogenated carboxylated nitrile rubber latex
Author(s) -
Han Yang,
Mao Lixin,
Meng Hongwei,
Zhang Liqun,
Yue Dongmei
Publication year - 2014
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.39865
Subject(s) - nitrile , materials science , nitrile rubber , natural rubber , polymer science , composite material , polymer chemistry , chemistry , organic chemistry
A new type of self‐crosslinking latex film was prepared from hydrogenated carboxylated nitrile‐butadiene rubber (HXNBR) latex by diimide reduction. The properties of the HXNBR rubber, including film surface morphology, physical properties, thermal stability and ageing properties, were investigated. FTIR spectroscopy was used to confirm the HXNBR structure, from which the degree of hydrogenation can be obtained. The morphology of the film surface was monitored by atomic force microscopy, which confirmed that HXNBR latex can form a continuous film with good cohesive properties from self‐crosslinking latex particles. The self‐crosslinking provided the latex film with excellent tensile strength. The thermal stability was improved after hydrogenation, as indicated by thermogravimetric methods. The activation energy for degradation was determined by Coats‐Redfern plots. Hot air oven thermal ageing confirmed that the oxidation resistance increased as the degree of hydrogenation increased. All these results showed that HXNBR latex can form a self‐crosslinking film with better mechanical properties, and heat and oxidation resistance than those of XNBR latex film in a wide range of film applications. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014 , 131 , 39865.