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The tribological behaviors of core‐shell n ‐octadecane @ TiO 2 /epoxy composites
Author(s) -
Zhao Gengrui,
Wang Honggang,
Ren Junfang,
Chen Shengsheng,
Gao Gui,
Wang Na,
Yang Yawen
Publication year - 2020
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.25759
Subject(s) - materials science , epoxy , composite material , octadecane , emulsion , core (optical fiber) , tribology , shell (structure) , composite number , chemical engineering , chemistry , organic chemistry , engineering
In this work, the n ‐octadecane@TiO 2 particles with core‐shell structure were successfully prepared via a sol‐gel method in an oil‐in‐water (o/w) emulsion. The resultant core‐shell particles were incorporated into epoxy matrix to prepare composites. Compared with pure epoxy and TiO 2 doped epoxy, the incorporation of n ‐octadecane@TiO 2 reduced the friction coefficient (COF) and wear rate of epoxy. According to the systematical investigation of the wear tracks on three samples and scars on their friction antithesis balls, it was speculated that the antifriction effect of core‐shell additives on composites were mainly attributed to the mixture formed by the crushed n ‐octadecane@TiO 2 . The mixture not only backfilled the tearing‐like cracks on worn face generated by fatigue wear, but also promoted the formation of transfer film.