摘要
以废印刷电路板(PCB)粉对聚丙烯(PP)进行填充改性,采用熔融共混法制备了PP基复合材料。通过力学性能测试研究了硅烷偶联剂KH-550、马来酸酐接枝聚丙烯(PP-g-MAH)两种改性剂的引入对PP/废PCB粉复合材料力学性能的影响,并用扫描电镜(SEM)观察了复合材料的冲击断面形貌。结果表明:KH-550和PPg-MAH均能有效改善PP/废PCB粉复合体系的界面黏结效果,二者的最佳用量分别为2%和4%,其中PP-gMAH对复合材料的改性效果优于KH-550。引入了PP-g-MAH的复合材料,其拉伸和弯曲强度最高可比未改性复合材料分别提升52.2%和31.2%,同时材料的冲击强度亦保持了较高值。
Polypropylene（PP）/waste printed circuit boards（PCB） power composites were prepared by melt blending method.The effects of silane coupling agent KH-550 and maleic anhydride grafted polypropylene（PP-g-MAH） on mechanical properties of the composites were investigated by mechanical properties test,and the impact fracture surface morphology was observed by scanning electron microscopy（SEM）.The results indicate that：both the KH-550 and PP-g-MAH can improve the interfacial bonding strength of the PP/waste PCB power composites effectively,the optimal dosage of the two is 2% and 4% respectively,and the modification effect of PP-gMAH on the composites is better than that of KH-550.Compared with the unmodified PP/waste PCB power composite,the maximum increase of tensile strength and bending strength for the composite modified by PP-g-MAH can reach 52.2% and 31.2% respectively,and impact strength of the composite maintain high value.
出处
《塑料科技》
CAS
北大核心
2016年第1期59-63,共5页
Plastics Science and Technology
基金
常州工程职业技术学院院级科研重点项目(KJ14303)
