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。
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 15wt%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.
出处
《中国塑料》
CSCD
北大核心
2017年第4期40-44,共5页
China Plastics
关键词
漆籽壳纤维
玄武岩纤维
聚甲醛
摩擦学性能
lacquer seed shell fiber
basalt fiber
polyoxymethylene
tribological performance
