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Study on high‐temperature composite properties of fluorosilicone rubber with nano‐Sb 2 O 3
Author(s) -
Xu Zehua,
Zhang Yanbin,
Zhou Jin,
Qi Ming,
Shi Jianyong,
Zhang Jiaqi
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.49302
Subject(s) - materials science , composite material , composite number , abrasive , scanning electron microscope , natural rubber , softening point , elongation , softening , tear resistance , matrix (chemical analysis) , nano , ultimate tensile strength
This article studied the influence of nano‐Sb 2 O 3 on the high‐temperature composite performance of fluorosilicone rubber (FVMQ). FVMQ with 4% mass of nano‐Sb 2 O 3 content was prepared by mechanical blending method. The friction properties of FVMQ and Sb 2 O 3 /FVMQ composites at different temperatures were analyzed by means of three‐dimensional profilometer and scanning electron microscopy. The results showed that nano‐Sb 2 O 3 can enhance the matrix strength of FVMQ, and this effect was obvious at high temperature. The elongation of Sb 2 O 3 /FVMQ composites was increased by 10.7% at 25°C. The tear strength of Sb 2 O 3 /FVMQ composites was increased by 53.1%. While the friction coefficient and the wear amount, respectively, were decreased by 20 and 48.53% at 200°C. Sb 2 O 3 /FVMQ composite showed excellent anti‐wear, antifriction, anti‐tear, and other characteristics in the high‐temperature test. The enhancement of the cross‐linking density of matrix caused by adding Sb 2 O 3 into FVMQ can lead to the softening of rubber, and the type of wear changed from abrasive wear to adhesive wear. Thus, the composite showed good wear resistance.