短碳纤维对丁腈橡胶力学及摩擦学性能的影响

玻璃钢/复合材料 ›› 2019, Vol. 0 ›› Issue (10): 82-89.

短碳纤维对丁腈橡胶力学及摩擦学性能的影响

王广飞¹, 许家旺², 周伟^1*, 何强²

1.河北大学质量技术监督学院,保定071002;
2.安阳工学院机械工程学院,安阳455000

收稿日期:2018-12-14 出版日期:2019-10-28 发布日期:2019-10-28
通讯作者: 周伟(1980-),男,博士,教授,主要从事复合材料声学及光学无损检测技术方面的研究,zhouweihy@126.com。
作者简介:王广飞(1994-),男,在读硕士研究生,主要从事无损检测技术方面的研究。
基金资助:
河北省自然科学基金(E2016201019)

EFFECT OF SHORT CARBON FIBER ON MECHANICAL ANDTRIBOLOGICAL PROPERTIES FOR NITRILE RUBBER

WANG Guang-fei¹, XU Jia-wang², ZHOU Wei^1*, HE Qiang²

1.College of Quality and Technical Supervision, Hebei University, Baoding 071002, China;
2.School of Mechanical Engineering Anyang Institute of Technology, Anyang 455000, China

Received:2018-12-14 Online:2019-10-28 Published:2019-10-28

摘要/Abstract

摘要： 为研究短碳纤维对丁腈橡胶力学及摩擦学性能的影响,采用机械共混法在丁腈橡胶(NBR)中添加不同质量份数的短碳纤维(CF),进行拉伸和撕裂实验。结合三维形貌和扫描电镜,分析了在不同加载力和转速条件下,添加0份和15份短CF时硫化胶的摩擦性能。结果表明:短CF可增强丁腈橡胶的基体强度,增大其硬度;但添加过量时,短CF与橡胶基体结合度下降,在拉伸、撕裂和摩擦过程中易造成纤维拔出。在丁腈橡胶中添加15份短CF可降低其摩擦系数,减少其磨损量。CF/NBR复合材料摩擦系数受转速影响较小,当转速较高时,硫化胶摩擦界面会产生大量热能,从而出现熔融现象,导致其磨屑变小。在摩擦过程中短CF与橡胶基体共同承载了力的作用,使CF/NBR复合材料具有良好的耐磨性能。

关键词: 丁腈橡胶, 短碳纤维, 力学性能, 摩擦性能

Abstract: In order to study the effect of short carbon fiber on the mechanical and tribological properties of nitrile rubber, different mass fractions of short carbon fiber (CF) were added to nitrile rubber (NBR) by mechanical blending to carry out tensile and tear tests. Combined with the three-dimensional morphology and scanning electron microscopy, the friction properties of 0 and 15 parts of short CF vulcanizate under different loading force and speed were analyzed. The results show that short CF can enhance the matrix strength of nitrile rubber and increase its hardness. However, when the addition is excessive, the degree of bonding of the short CF to the rubber matrix is decreased, and the fiber is easily pulled out during stretching, tearing and rubbing. Adding 15 parts of short CF to the nitrile rubber reduces the friction coefficient and the amount of wear. The CF/NBR friction coefficient is less affected by the rotating speed. When the rotating speed is higher, the frictional interface of the vulcanized rubber will generate a large amount of thermal energy, which will cause melting phenomenon, resulting in less grinding debris. During the friction process, the short CF and the rubber matrix jointly carry the force, so that the CF/NBR composite has good wear resistance.

Key words: nitrile rubber, short carbon fiber, mechanical properties, friction properties

中图分类号:

TB332

王广飞, 许家旺, 周伟, 何强. 短碳纤维对丁腈橡胶力学及摩擦学性能的影响[J]. 玻璃钢/复合材料, 2019, 0(10): 82-89.

WANG Guang-fei, XU Jia-wang, ZHOU Wei, HE Qiang. EFFECT OF SHORT CARBON FIBER ON MECHANICAL ANDTRIBOLOGICAL PROPERTIES FOR NITRILE RUBBER[J]. Fiber Reinforced Plastics/Composites, 2019, 0(10): 82-89.

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