低浮纤GFRPP复合材料的制备及其性能表征
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摘要
采用包覆工艺制备了聚丁烯-1/玻璃纤维(PB-1/GF)母粒,将其与聚丙烯(PP)熔融共混制备玻纤增强PP(GFRPP)复合材料,并研究了GFRPP复合材料的表面形貌、力学性能和结晶性能。结果表明:加入PB-1/GF母粒可有效改善GFRPP复合材料的浮纤现象,使复合材料表面具有更少裸露的GF。在包覆工艺下,PB-1质量分数为10%时,复合材料表现出优异的力学性能,其拉伸强度、弯曲强度、冲击强度分别为68.42 MPa,118.80 MPa,3.41 kJ/m~2。同时,包覆工艺可使复合材料的结晶度有一定程度提高。
Polybutylene-1/glass fiber(PB-1/GF) masterbatchs were fabricated by means of the coating process, which was chosen as a filler to subsequently compound with polypropylene(PP) in the molten state to prepare glass fiber reinforced PP(GFRPP) composites. And the surface morphology, mechanical properties and crystallization properties of the composites were investigated. The results show that the addition of PB-1/GF masterbatchs can effectively improve the phenomenon of floating fiber and make the surface of that have less exposed GF. Under the coating process, when the mass fraction of PB-1 is 10%, the composites exhibit significant mechanical properties, and its tensile strength, flexural strength and impact strength are 68.42 MPa, 118.80 MPa and 3.41 kJ/m~2, respectively. Meanwhile, the crystallization of the composites can be improved to a certain extent by the coating process.
Polybutylene-1/glass fiber(PB-1/GF) masterbatchs were fabricated by means of the coating process, which was chosen as a filler to subsequently compound with polypropylene(PP) in the molten state to prepare glass fiber reinforced PP(GFRPP) composites. And the surface morphology, mechanical properties and crystallization properties of the composites were investigated. The results show that the addition of PB-1/GF masterbatchs can effectively improve the phenomenon of floating fiber and make the surface of that have less exposed GF. Under the coating process, when the mass fraction of PB-1 is 10%, the composites exhibit significant mechanical properties, and its tensile strength, flexural strength and impact strength are 68.42 MPa, 118.80 MPa and 3.41 kJ/m~2, respectively. Meanwhile, the crystallization of the composites can be improved to a certain extent by the coating process.
引文
[1] ISHAK Z A M,MANSOR T S A T,YOW B N,et al.Short glass fibre reinforcedpoly (butylene terephthalate) Part 1:Microstructural characterisation and kinetics of moisture absorption[J].Plastics Rubber & Composites,2013,29(6):263-270.
[2] 潘燕,李又兵,史文,等.GFRPP复合材料“浮纤”改善及结构与性能研究[J].工程塑料应用,2013,41(7):17-20.
[3] 刘晶如,胡方明,俞强.聚丙烯接枝马来酸酐改性纳米ZnO/聚丙烯复合材料的成核结晶行为及力学性能[J].复合材料学报,2017,34(7):1526-1532.
[4] 田永,韦俊.车用聚丙烯及其复合材料的性能与应用[J].汽车零部件,2012(6):66-70.
[2] 潘燕,李又兵,史文,等.GFRPP复合材料“浮纤”改善及结构与性能研究[J].工程塑料应用,2013,41(7):17-20.
[3] 刘晶如,胡方明,俞强.聚丙烯接枝马来酸酐改性纳米ZnO/聚丙烯复合材料的成核结晶行为及力学性能[J].复合材料学报,2017,34(7):1526-1532.
[4] 田永,韦俊.车用聚丙烯及其复合材料的性能与应用[J].汽车零部件,2012(6):66-70.