废旧线路板粉料增强不饱和聚酯复合材料力学性能

以废旧线路板回收处理过程中得到的塑料粉料作为增强填料，采用模压成型的方法制备成不饱和聚酯复合材料。改变填料形状、加入量及尺寸大小，研究其对复合材料性能的影响。结果表明：用废弃粉料与短切玻璃纤维作为组合增强体制得的不饱和聚酯复合材料的力学性能远大于仅用废弃粉料作为增强体的力学性能；颗粒长度为1～3 mm的纤维状粉料对复合材料性能的提高远远大于颗粒长度为0.25 mm的纤维状粉料对复合材料性能的提高，且填充量也较大，质量分数可达65%，弯曲强度和冲击强度可达150 MPa、18 kJ/m2。

Mechanical properties of waste printed wiring board powder reinforced unsaturated polyester resin(UPE)composites

Chopped glass fiber and waste printed wiring board powder reinforced composites were prepared by compression molding. Effects of the shape，content and size of waste powders on the mechanical property of waste filler reinforced composites were studied，and the application of waste composite was discussed. The results show that the mechanical property of composite reinforced by chopped glass fiber and waste printed wiring board powder is better than that of waste powder reinforced composite. Effects of large powders (1～3 mm) on composite properties were better than of small powders (0.25 mm). Large powder mass fraction can reach 65%，and a mixed reinforced composite with flexural strength of 150 MPa and impact strength of 18 kJ/m2 can be developed.