耐电子束辐射PP材料的制备及性能研究  

Preparation and performance study of electron beam radiation resistant PP materials

作　　者：付京 高宇 李利娜 王国锋 姜帅 张心哲 Fu Jing;Gao Yu;Li Lina;Wang Guofeng;Jiang Shuai;Zhang Xinzhe(Henan Tuoren Zhongke Medical Technology Co.LTD.,Xinxiang 453400,Henan,China)

机构地区：[1]河南驼人中科医疗科技有限公司,河南新乡453400

出　　处：《橡塑技术与装备》2024年第6期45-49,共5页China Rubber/Plastics Technology and Equipment

摘　　要：通过加入抗氧剂、光稳定剂及成核剂制备了耐电子束辐射PP材料,研究了它们对电子束辐射后PP材料力学性能、光学性能和流变性能的影响。结果表明:在PP/抗氧剂体系中,随着辐照剂量的增加,其各项性能与纯PP材料相差不明显,光学性能变差,其分子链缠绕变弱,力学性能变差;在PP/抗氧剂体系中加入光稳定剂后,当辐射剂量为25 kGy时,其黄变指数仍在0以下,光学性能及力学性能均优于纯PP材料和抗氧剂体系;在PP/抗氧剂/光稳定体系中加入成核剂后,其分子链缠绕能力变强,电子束辐射后其力学性能最优,表明成核剂有助于提高电子束辐射后PP材料的力学性能。Anti electron beam radiation resistant PP materials were prepared by adding antioxidants,light stabilizers,and nucleating agents,and their effects on the mechanical,optical,and rheological properties of PP materials after electron beam radiation were studied.The results showed that in the PP/antioxidant system,with the increase of irradiation dose,its various properties did not differ significantly from pure PP materials;The optical performance deteriorates,the molecular chain entanglement weakens,and the mechanical properties deteriorate;After adding light stabilizers to the PP/antioxidant system,the yellowing index remained below 0 when the radiation dose was 25 kGy,and the optical and mechanical properties were better than those of pure PP materials and antioxidant systems;After adding nucleating agents to the PP/antioxidant/photostable system,the molecular chain entanglement ability becomes stronger,and the mechanical properties are optimal after electron beam irradiation,indicating that nucleating agents help improve the mechanical properties of PP materials after electron beam irradiation.

关 键 词：PP 光稳定剂 成核剂 光学性能 力学性能 流变性能 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]