To improve the wear and low-temperature resistance of FKM
CF/MVQ/FKM composites were prepared
in which FKM/MVQ blends were used as matrix
and the coupling agent treated-CF was used as the reinforcement. The effect of coupling agent type and content on mechanical properties of CF/MVQ/FKM composites was investigated
the interaction of coupling agent and composites was studied by infrared spectrum (IR) and X-ray photo electron spectroscopy (XPS)
the surface morphology and phase composition of composites were observed by atomic force microscope (AFM) and infrared chemical imaging technology
the thermal properties of composites were researched by dynamic thermal mechanical analysis (DMA) and thermogravimetric analysis (TG). The results show that coupling agents crosslink with CF and MVQ/FKM blend
the best coupling agent is KH590
and content is 2 phr (part per hundred rubber)
the wear of KH590/CF/MVQ/FKM composites decreases from 0. 0314cm
3
•km
-1
to 0. 0283cm
3
•km
-1
T
g
decreases from —20 ℃ to —30℃
initial decomposition temperature increases from 231℃ to 304℃ compared with FKM.