摘要
采用一步法活化增容制备了回收高密度聚乙(烯RHDPE/)胶粉管材专用料,并研究了引发剂过氧化二异丙苯强度从37.5 kJ/m2提高到48 kJ/m2;弯曲强度从10.5 MPa提高到12.9 MPa;弯曲模量从356 MPa提高到405(DCP)、接枝单体马来酸酐(MAH用)量对体系力学性能的影响。结果表明:当DCP、MAH用量分别为0.1份、1.0份时,RHDPE/胶粉体系获得最佳的力学性能,与简单共混物比较,拉伸强度从18.8 MPa提高到23.8 MPa;缺口冲击MPa。通过流变性能测试结果和扫描电(镜SEM)照片分析活,化增容对RHDPE/胶粉体系有效。
The tubing special material with reclaimed HDPE/rubber powder composites was prepared by one-step activation and compatibilization method,and the influences of content of DCP and maleic anhydride on mechanical properties of composite were studied.The results indicate that： the special material obtains the optimal mechanical properties when the content of DCP is 0.1 phr and MAH is 1.0 phr.Compared with simple blends,the tensile strength of HDPE/rubber powder composites increases from 18.8 MPa to 23.8 MPa,the notch impact strength increases from 37.5 kJ/m2 to 48 kJ/m2,the flexural strength increases from 10.5 MPa to 12.9 MPa,and the flexural modulus increases from 356 MPa to 405 MPa.The SEM micrographs and rheological properties of reclaimed HDPE/rubber composite show that the activation and modification are effective to HDPE/rubber powder system.
出处
《塑料科技》
CAS
北大核心
2011年第6期47-50,共4页
Plastics Science and Technology
关键词
回收高密度聚乙烯
胶粉
增容
专用料
Reclaimed high density polyethylene
Rubber powder
Compatibilization
Special material
