中国塑料

中国塑料 ›› 2017, Vol. 31 ›› Issue (4): 40-44 .DOI: 10.19491/j.issn.1001-9278.2017.04.008

• 材料与性能 • 上一篇    下一篇

漆籽壳纤维含量对聚甲醛/玄武岩纤维复合材料的力学及摩擦学性能的影响

刘俊鹏,龙春光,谌磊,付扬威,许可可,董佩冉   

  1. 长沙理工大学
  • 收稿日期:2016-11-18 修回日期:2017-01-03 出版日期:2017-04-26 发布日期:2017-04-26

Effect of Lacquer-seed-shell-fiber Content on Mechanical and Tribological Properties of Polyoxymethylene/Basalt Fiber Composites

  • Received:2016-11-18 Revised:2017-01-03 Online:2017-04-26 Published:2017-04-26

摘要： 采用熔融共混、注射成型等工艺制备了聚甲醛(POM)/玄武岩纤维(BF)/漆籽壳纤维(LSSF)复合材料，通过力学试验、摩擦磨损试验和扫描电子显微镜分别研究了复合材料的力学性能、摩擦学性能和微观形貌。结果表明，LSSF和BF较均匀地分散于POM基体中，且界面相容性较好；POM/BF/LSSF复合材料的冲击性能、流动性能和摩擦性能相对于POM/BF复合材料都有一定的提高；与POM/20%BF相比，当LSSF的添加量为10 %（质量分数，下同）时，复合材料的流动性能提高了68 %；当LSSF添加量为15 %时，复合材料的冲击性能提高了225 %；当LSSF添加量为5 %时，复合材料的摩擦因数降低了23 %，磨损量降低了70 %；复合材料的主要磨损机制由低漆籽壳含量时的磨粒磨损转变为高漆籽壳含量时的磨粒磨损和黏着磨损复合作用。

关键词: 漆籽壳纤维, 玄武岩纤维, 聚甲醛, 摩擦学性能

Abstract: Polyoxymethylene (POM)/basalt fiber (BF)/lacquer seed shell fiber (LSSF) composites were prepared through a melt blending method, and their mechanical properties, tribological performance and microstructure were investigated. The results indicated that the LSSF and BF were homogenously dispersed in POM matrix with good compatibility. The impact toughness, fluidity and friction performance of the ternary composites are improved in comparison with POM/BF composites. The fluidity of POM/BF/LSSF composites increased by 68 % when 10 wt % of LSSF was added. The impact performance was improved by 225 % with the addition of 15 wt % LSSF. Moreover, the composite showed a reduction in friction coefficient by 23 % and in wear loss by 70 %, respectively, at the LSSF content of 5 wt %. The worn mechanism is attributed to abrasive wear for the composites at low contents of LSSF but to abrasive wear and adhesive wear at the high contents of LSSF.

Key words: lacquer seed shell fiber, basalt fiber, polyoxymethylene, tribological property

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