摘要
采用电磁动态注射机注塑成型PP试样,并对其进行拉伸强度、冲击强度和DSC测试,探讨振动频率和振幅对制品力学性能的影响。结果表明:施加振动后,拉伸强度和冲击强度提高;熔点向高温漂移,有利于结晶完善程度的提高。对PP注塑料,电磁动态注塑成型时最佳的振动参数范围为f=3～9Hz,A=0 10mm～0 40mm。
The electromagnetic dynamic plastics injection molding machine was adopted to mold PP samples,and these samples were tested on tensile and impact strength,DSC to explore the influence of vibration frequency and amplitude on the mechanical properties of products.The results showed that the tensile strength and impact strength were enhanced together,the melting point moved to higher temperature which facilitated the perfection of crystal.The best vibration parameters to PP using electromagnetic dynamic plastics injector were that frequency was from 3Hz to 9Hz and amplitude was from 0.10mm to 0.40mm.
出处
《塑料》
CAS
CSCD
2004年第3期1-4,共4页
Plastics
基金
国家863计划基金项目(2001AA337050)。
