摘要
采用熔融共混法制备了聚丙烯(PP)/废印刷电路板非金属粉(废PCB粉)共混体系,利用动态力学性能分析法(DMA)研究了废PCB粉含量、改性剂聚丙烯接枝马来酸酐(PP-g-MAH)及振动频率对共混体系动态力学性能的影响。实验结果显示:PP/废PCB粉共混体系的储能模量和损耗模量较纯PP均有所增大,且随废PCB粉含量的增加进而增大,力学损耗因子峰值和玻璃化转变温度则有所下降;相容剂PP-g-MAH的加入使废PCB粉和PP之间形成较牢固的界面层,使共混体系储能模量较改性前进一步增加,而损耗模量和力学损耗因子峰值较改性前有所减小;振动频率对共混体系的动态力学性能亦有一定影响,随振动频率的增加,共混体系的储能模量提高,损耗模量和力学损耗因子峰值则有所减小。
Polypropylene （PP）/waste printed circuit boards nonmetallic powder（waste PCB power） blends was prepared by melt blending method. The effects of content of waste PCB power, PP-g- MAH and vibration frequency on dynamic mechanical properties of PP/waste PCB powder blends were investigated by dynamic mechanical analysis （DMA）. The results demonstrate that the storage modulus and loss modulus of blends increase with increasing content of waste PCB power, mechanical loss factor and glass transition temperature decreases slightly. The Compatible agent PP-g-MAH is added to make the waste PCB powders between PP and form a solid interface layer, the storage modulus is further increased than that of non-modified ones, the loss modulus and mechanical loss factor decreases. The dynamic mechanical properties of the blend system are also affected by the vibration frequency. The storage modulus of the blend system increases with the increase of the vibration frequency, and the loss modulus and mechanical loss factor decrease.
出处
《塑料科技》
CAS
北大核心
2016年第6期32-35,共4页
Plastics Science and Technology
基金
常州工程职业技术学院科研重点项目(KJ14303)
