摘要
以未处理和偶联剂KH550处理的C纤维、SiC纤维和Al2O3纤维为填充材料,以超高分子量聚乙烯(UHMWPE)为基体,用模压成型法制备了三种纤维改性UHMWPE复合材料,对复合材料的硬度、弯曲强度、拉伸强度和断裂伸长率进行了实验研究,用光学显微镜观察分析了拉伸断面形貌。结果表明,未处理的C纤维、SiC纤维和Al2O3纤维改性UHMWPE复合材料硬度较纯UHMWPE分别提高了11.76%、21%和6%。经KH550处理的三种纤维改性UHMWPE复合材料弯曲强度和拉伸强度均优于未处理纤维的复合材料,已处理的SiC纤维/UHMWPE复合材料弯曲强度和拉伸强度提高较大。KH550处理的三种纤维与UHMWPE基体界面粘接紧密,未处理纤维与UHMWPE基体粘接较差。
Ultra-high molecular-weight polyethylene（UHMWPE） composites filled with untreated and treated C fiber, SiC fiber and Al2O3 fiber were prepared by molding method. The hardness, bending strength, tensile strength and wear performances of the composites were studied. The tensile fractore-surface morphology of composities were studied too. The results show that the hardness of composite filled with untreated C fiber, SiC fiber, Al2O3 fiber is 11.76 %, 21% and 6 % higher than that of pure UHMWPE respectively. The bending strength and tensile strength of UHMWPE composites filled with 3 kinds of fiber treated by coupling agent are better than those of the untreated fibers composites, and SiC fiber/UHMWPE is the best composite. The treated fibers show good interfacile adhesion UHMWPE which untreated fibers do not.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2012年第12期93-96,共4页
Polymer Materials Science & Engineering
基金
中央高校基本科研业务费专项基金资助项目(KYZ200921)
高等学校博士点基金项目(20060307002)
