基于热老化寿命评估法快速鉴别聚丙烯再生料  

Rapid Identification of Recycled Polypropylene Based on Thermal Aging Service-Life Evaluation Method

作　　者：孙梦捷 李洁君[1] 杨建平[1] 袁琳嫣 刘峻[1] Sun Mengjie;Li Jiejun;Yang Jianping;Yuan Linyan;Liu Jun(Shanghai Institute of Quality Inspection and Technical Research,Shanghai,201114)

机构地区：[1]上海市质量监督检验技术研究院,上海201114

出　　处：《现代塑料加工应用》2021年第1期33-35,共3页Modern Plastics Processing and Applications

基　　金：上海市科学技术委员会研发公共服务平台建设项目《上海市日用消费品质量安全检测专业技术服务平台》(14DZ2293000)资助。

摘　　要：采用热重分析仪对聚丙烯(PP)再生料样品在不同温度下进行原位加速老化试验,计算出样品在5%失重下所需的老化时间。通过Arrhenius方程建立温度和老化时间的关系,估算再生料不同添加量时PP再生料样品的实际使用寿命。结果表明,随着再生料添加量的增大,PP再生料样品的使用时限减少。Thermogravimetric analyzer was used to perform in-situ accelerated aging experiments on recycled polypropylene(PP)samples at different temperatures. The aging time required for the sample under the weight loss of 5% was calculated. The relationship between temperature and aging time was established by Arrhenius equation, and the actual service-life of recycled PP sample with different adding amounts of recycled materials was finally estimated. The results show that the service-life of recycled PP sample decreases with the increasing of adding amounts of recycled materials.

关 键 词：聚丙烯 再生料 寿命 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]