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以废旧线路板回收处理过程中得到的塑料粉料与玻璃纤维作为增强材料,采用模压成型的方法制备成不饱和聚酯复合材料。研究了模压工艺参数以及废弃物粉末填料配比等对复合材料力学性能的影响规律,并初步展望了废弃物复合材料的应用。结果表明,随着模压温度、压强、模压时间和填料含量的增加,复合材料的弯曲强度先升高后降低;在优化的模压工艺参数条件下,用废弃粉体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体作为增强体的力学性能,其弯曲强度和冲击强度可达150MPa、18kJ/m2。
The plastic powder and glass fiber obtained in the waste circuit board recycling process are used as a reinforcing material, and the unsaturated polyester composite material is prepared by a molding method. The influence of molding process parameters and the proportion of waste powder fillers on the mechanical properties of composites was studied. The application of waste composites was forecasted. The results show that with the increase of molding temperature, pressure, molding time and filler content, the bending strength of the composite first increases and then decreases. Under the optimized molding process parameters, the combination of waste powder and chopped glass fiber The mechanical properties of the prepared unsaturated polyester composites are far greater than the mechanical properties of waste reinforcement alone. The flexural strength and impact strength can reach 150MPa, 18kJ / m2.