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以玻璃钢深加工时切割成型产生的碎屑——废弃玻璃钢(WGFRP)作为填料,采用密炼、模压制备了WGFRP/PP复合材料,并通过力学性能测试分别研究了WGFRP粒级及填充量对复合材料性能的影响。结果表明:WGFRP的添加增强了复合材料的弹性模量、弯曲强度与弯曲模量,添加质量分数为20%,其值分别达到了1 448.89 MPa,27.96 MPa和1 412.81 MPa,比纯PP增加了38.0%,27.3%和36.8%。此时,细粒级的WGFRP对复合材料拉伸和冲击强度的增强比粗粒级WGFRP显著,且对伸长率影响甚微,但其弯曲性能不如粗粒级体系。
WGFRP / PP composites were prepared by compacting and molding with waste glass fiber reinforced plastics (WGFRP) as filler. The mechanical properties of WGFRP / PP composites were studied respectively. The impact of performance. The results showed that the addition of WGFRP enhanced the elastic modulus, flexural strength and flexural modulus of the composites with the mass fraction of 20%, which reached 1 448.89 MPa, 27.96 MPa and 1 412.81 MPa, respectively, 38.0%, 27.3% and 36.8%. In this case, the tensile strength and the impact strength of the WGFRP composites reinforced by the coarse-grained WGFRP were significantly higher than that of the coarse-grained WGFRP, with little effect on the elongation. However, the flexural properties were not as good as the coarse-grained ones.