无规共聚聚丙烯管材氧化诱导时间测试探究  

Study on test of oxidation induction time for random copolymer polypropylene pipe

作　　者：张兵 ZHANG Bing(Fujian Inspection and Research Institute for Product Quality,Fuzhou 350002,China;National Quality Inspection Testing Center of Plastic Product,Fuzhou 350002,China)

机构地区：[1]福建省产品质量检验研究院,福州350002 [2]国家塑料制品质量检验检测中心,福州350002

出　　处：《中国塑料》2022年第8期107-109,共3页China Plastics

摘　　要：以无规共聚聚丙烯(PP⁃R)管材为研究对象,采用差示扫描量热仪(DSC)测试了PP⁃R管材的氧化诱导时间(OIT),并研究了测试部位、样品直径、样品厚度以及取样方式等测试条件对OIT测试结果的影响。结果表明,从垂直管壁方向取芯层直径为6 mm、厚度为650μm的试样进行测试时,OIT测试结果相对可靠。The oxidation induction time(OIT)of random copolymer polypropylene pipe was measured using a differential scanning calorimeter,and the effects of specimen site,diameter,thickness,and sampling method on the text results were studied.The results indicated that the OIT test results were relatively reliable when using the sample taken from the direction perpendicular to the pipe wall with a core layer diameter of 6 mm and a thickness of 650μm.

关 键 词：无规共聚聚丙烯管材 测试部位 样品直径 样品厚度 

分 类 号：TQ320.77[化学工程—合成树脂塑料工业]