塑料科技2023，Vol.51Issue(11)：1-4,4.DOI:10.15925/j.cnki.issn1005-3360.2023.11.001
回收聚丙烯含量对共混改性样品性能的影响研究
Effect of Recycled Polypropylene Content on Properties of Blended Modified Samples
摘要
Abstract
In order to investigate the effect of recycled plastic content on the processability and physical properties of blended modified recycled materials,recycled polypropylene rubber head masterbatch(recycled material)was blended with pure polypropylene to prepare blend samples,and their rheological properties,crystallization properties and mechanical properties were characterized.The results show that the viscosity of blend samples decreases and the relaxation peak at 0.1 s shifts to lower frequency when the recycled material content increases from 0 to 50%.Relaxation peaks also appeared in the blend melt at 1 s due to the presence of higher molecular weight parts in the recycled material.The peak temperature of the main crystallization peak increases from 118.2℃to 120℃when the recycled material content increases from 0 to 50%,but the crystallization behavior at low temperature also appears.When the recycled material content increases from 10%to 50%,the crystallinity of the sample decreases from 40%to 35%,and a crystalline structure with lower melting point also appears.The impact strength,tensile strength,flexural strength and flexural modulus of the blend decrease by 35%,7%,10%and 9%,respectively,when the recycled material content is 50%,which indicates that the mechanical properties of the blend decrease with the increase of recycled material.关键词
回收聚丙烯/流变性能/结晶性能/力学性能Key words
Recycled polypropylene/Rheological properties/Crystallization properties/Mechanical properties分类
化学化工引用本文复制引用
谢嘉宜,尹良栋,陈耿豪,张婷..回收聚丙烯含量对共混改性样品性能的影响研究[J].塑料科技,2023,51(11):1-4,4.基金项目
韶关学院博士科研启动项目(99000620) （99000620）
韶关市科技计划(210726114532223) （210726114532223）
韶关市2021年广东省科技创新战略专项资金"大专项+任务清单"高新区高质量发展专项(210901154532282) （210901154532282）
2020年度韶关学院校级"质量工程"建设项目(230085990104) （230085990104）
