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Investigation on thermal stability and tribological properties of ZrB 2 particles filling cyanate ester resin composites by experiments and numerical simulation
Author(s) -
Wu Jiacheng,
Jia Zhuoying,
He Yannan,
Yu Zhiqiang
Publication year - 2019
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.24975
Subject(s) - materials science , composite material , tribology , abrasive , cyanate ester , composite number , thermal stability , differential scanning calorimetry , scanning electron microscope , thermogravimetric analysis , epoxy , chemistry , organic chemistry , physics , quantum mechanics , thermodynamics
The thermal stability and tribological properties of cyanate ester (CE) composites filled with Zirconium boride (ZrB 2 ) particles were investigated by experimental and numerical simulation. The results of thermogravimetric analysis and differential scanning calorimetry showed that the thermal stability of composites was improved by introduction of ZrB 2 particles. The tribological properties of composites including friction coefficient and wear rate measured by pin‐on‐disk friction and wear tester were enhanced. Friction coefficient and wear rate of composites were decreased significantly with an increase of ZrB 2 particles content under dry and oil sliding conditions. The 5 wt% ZrB 2 particles reinforced CE resin composite presented optimal thermal stability and tribological performance due to good dispersion of ZrB 2 particles. The worn surfaces of composites were observed by scanning electron microscopy to explore wear mechanism, indicating that the dominant wear mechanism of composites was transformed from adhesive wear to abrasive wear after incorporation of ZrB 2 particles. Finite element model was established to study the distribution of friction stress. The results revealed that filling ZrB 2 particles in the friction process of composites could bear more friction stress than CE resin matrix, which further illustrated that abrasive wear is main wear mechanism of ZrB 2 /CE resin composites. POLYM. ENG. SCI., 59:602–607, 2019. © 2018 Society of Plastics Engineers