期刊论文

Study of Preparation and Properties of POM/Sepiolite Fiber Composites

中文

中国塑料

1001-9278

2019

33

2

24-28

10.19491/j.issn.1001-9278.2019.02.005

本校为第一机构

为制备性能优良的聚甲醛（POM）基复合材料,以海泡石纤维（Sep）填充POM制备POM/Sep复合材料。研究硅烷偶联剂KH550表面改性填料对复合材料力学和摩擦学性能的影响。复合材料的力学性能以及摩擦学性能随着Sep含量的增加而改善,当有机改性海泡石纤维（O-Sep）含量为5.0%（质量分数,下同）时,POM/O-Sep复合材料的拉伸强度、弯曲强度、弯曲模量和冲击性能分别达到最优值68.43 MPa、89.81 MPa、3600.61 MPa和285.5 kJ/m2,与纯POM相比提高了28.6%、51.9%、79.1%和8.8%;且POM/5.0%O-Sep复合材料的摩擦因数和磨损量分别达到0.072和3.6 mg,与纯POM相比降低了65.9%和35.7%。

Sepiolite-fiber-reinforced polyoxymethylene (POM) composites were prepared, and the effect of fiber surface modification with a silane coupling agent, KH550, on the mechanical and tribological properties of the composites were investigated. The mechanical and tribological properties of the composites were improved with an increase of sepiolite fiber content. When 5.0 wt% of sepiolite fiber was added, the composites gained optimum mechanical and tribological properties and achieved the tensile strength of 68.43 MPa, the flexural strength of 89.81 MPa, the flexural modulus of 3600.61 MPa and the...