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Preparation of high‐performance epoxy‐containing silicone rubber via hydrosilylation reaction
Author(s) -
Wang Yuan,
Zhang Bin,
Zhou Shengtai,
Chen Yang,
Liang Mei,
Zou Huawei
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.48397
Subject(s) - thermogravimetric analysis , epoxy , silicone rubber , materials science , silicone , composite material , silicone resin , silicone oil , hydrosilylation , natural rubber , polymer chemistry , fourier transform infrared spectroscopy , chemical engineering , chemistry , organic chemistry , catalysis , coating , engineering
A novel epoxy‐containing silicone rubber network was constructed by hydrosilylation reaction among the synthesized vinyl‐containing epoxy resin prepolymers, vinyl terminated silicone oil and hydrogen‐containing silicone oil. The structure of the vinyl‐containing epoxy resin prepolymers was characterized by Fourier transform infrared spectroscopy and 1 H nuclear magnetic resonance spectroscopy. Morphology observations revealed that uniform “sea‐island” phase separation structure was present in modified silicone rubbers. The compatibility between silicone rubber and epoxy resin was enhanced, thanks to the good dispersion of vinyl‐containing epoxy prepolymers in silicone rubber matrix. The adhesion and tensile properties of modified silicone rubbers were greatly enhanced when compared with those of unmodified counterparts. The thermal degradation behavior of cured silicone rubbers was studied using thermogravimetric analysis and thermogravimetric/infrared spectrometry analysis. Results showed that the formation of epoxy‐containing silicone rubber network altered the degradation process of silicone rubber, thereby yielding a higher residue at 800 °C under nitrogen atmosphere. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020 , 137 , 48397.