聚甲醛/海泡石纤维复合材料的制备与性能研究

doi:10.19491/j.issn.1001-9278.2019.02.005

中国塑料 ›› 2019, Vol. 33 ›› Issue (2): 24-28.DOI: 10.19491/j.issn.1001-9278.2019.02.005

聚甲醛/海泡石纤维复合材料的制备与性能研究

付扬威,龙春光,董佩冉

长沙理工大学

收稿日期:2018-08-31 修回日期:2018-10-16 出版日期:2019-02-26 发布日期:2019-03-26

Study of Preparation and Properties of POM/Sepiolite Fiber Composites

Received:2018-08-31 Revised:2018-10-16 Online:2019-02-26 Published:2019-03-26

摘要/Abstract

摘要： 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 %。

Abstract: 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 impact strength of 285.5 kJ/m2, which increased by 28.6 %, 51.9 %, 79.1 % and 8.8 %, respectively, compared to pure POM. However, the composites presented a friction coefficient of 0.072 and a wear loss of 3.6 mg, which decreased by 65.9 % and 35.7 %, respectively.

付扬威龙春光董佩冉. 聚甲醛/海泡石纤维复合材料的制备与性能研究[J]. 中国塑料, 2019, 33(2): 24-28.

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聚甲醛/海泡石纤维复合材料的制备与性能研究

Study of Preparation and Properties of POM/Sepiolite Fiber Composites

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