抗氧剂1024在铜嵌件聚丙烯管件中的应用研究  

Study on Application of Antioxidant 1024 in Copper Embedded Polypropylene Pipe Fittings

作　　者：吕爱龙 陈会东 谢碧茂 秦小梅 黄练兵 韩延旺 LV Ai-long;CHEN Hui-dong;XIE Bi-mao;QIN Xiao-mei;HUANG Lian-bing;HAN Yan-wang(Rifeng Enterprises Group Co.Ltd.,Guangdong Key Laboratory of Functional Plastic Composite Pipeline System Enterprises,Foshan 528000,Guangdong,China)

机构地区：[1]日丰企业集团有限公司,广东省功能化塑料复合管道系统企业重点实验室,广东佛山528000

出　　处：《合成材料老化与应用》2024年第1期8-11,31,共5页Synthetic Materials Aging and Application

摘　　要：铜嵌件聚丙烯管件在建筑给排水领域广泛使用,然而铜的存在会加速聚丙烯材料的热氧老化。该研究在聚丙烯树脂中引入抗氧剂1024,通过长期热氧老化实验以及在力学性能、OIT、熔融指数方面的测试,结果表明含有抗氧剂1024的聚丙烯具有强的抗铜热氧老化性能。加入0.3%的抗氧剂1024对聚丙烯的力学性能保持较好,老化后强度为21.6MPa,仅降低14.6%;而管件内层OIT下降速度缓慢,在180天老化后依然保持为13.7min。微观形貌研究发现,抗氧剂1024可以在聚丙烯与铜接触表面形成稳定络合物。含有抗氧剂1024的聚丙烯铜内嵌管件,其热氧老化性能与镀镍黄铜管件相近,具有较好应用前景。Copper embedded polypropylene pipe fittings are widely used in the field of building water supply and drainage.However,the presence of copper can always accelerate the thermal oxygen aging of polypropylene materials.In this paper,antioxidant 1024 was introduced into polypropylene resin.Through the tests on mechanical properties,OIT,and Melt flow index,the results showed that polypropylene containing antioxidant 1024 had strong resistance to copper thermal oxygen aging.The addition of 0.3%antioxidant 1024 maintained good mechanical properties of polypropylene,with a strength of 21.6 MPa after aging,only a decrease of 14.6%;The OIT of the inner layer of the pipe fittings decreased slowly and remained at 13.7 minutes after 180 days of aging.The microscopic morphology study showed that antioxidant 1024 can form stable complexes on the contact surface between polypropylene and copper.Polypropylene copper embedded pipe fittings containing antioxidant 1024 have similar thermal oxygen aging performance to nickel plated brass pipe fittings,and should have good application prospects.

关 键 词：聚丙烯PP 铜嵌件聚丙烯管件 抗氧剂1024 络合物 

分 类 号：TU532.6[建筑科学—建筑技术科学] TQ322.2[化学工程—合成树脂塑料工业]