无机纳米粒子结合抗氧化剂改性HDPE及性能  

The Modification of High Density Polyethylene by Inorganic Nanoparticles Combined with Antioxidants and Properties

作　　者：赵宏泽 陈照春 王栓紧 黄齐飞 Zhao Hongze;Chen Zhaochun;Wang Shuanjin;Huang Qifei(Guangzhou Liying Plastics Co.,Ltd.,Guangzhou,Guangdong,510000;Fujian Special Equipment Inspection and Research Institute,Fuzhou,Fujian,350000;School of Chemistry,Sun Yat-sen University,Guangzhou,Guangdong,510006;School of Petrochemical Engineering,Fuzhou University,Fuzhou,Fujian,350108)

机构地区：[1]广州丽盈塑料有限公司,广东广州510000 [2]福建省特种设备检验研究院,福建福州350000 [3]中山大学化学学院,广东广州510006 [4]福州大学石油化工学院,福建福州350108

出　　处：《现代塑料加工应用》2023年第4期8-11,共4页Modern Plastics Processing and Applications

基　　金：广东省塑料包装容器工程技术研究中心建设项目课题(20160920)。

摘　　要：针对传统高密度聚乙烯(HDPE)材料硬度不足、热稳定性较差的问题,提出一种无机纳米粒子和抗氧化剂共同改性HDPE的方法。当HDPE与纳米硫酸钠质量比为9∶1时,HDPE/纳米硫酸钠复合材料拉伸强度为27.15 MPa;加入了抗氧化剂的HDPE/纳米硫酸钠复合材料热氧老化20 d后,断裂伸长率和拉伸强度分别为36.0%和39.50 MPa,热稳定性明显增强。经过增强的HDPE,拉伸强度和热稳定性均表现良好,可以作为包装行业的备选材料使用。Aiming at the problems of low hardness and poor thermal stability of ordinary high density polyethylene(HDPE),a method of modifying HDPE with inorganic nanoparticles and antioxidants was proposed.When the mass ratio of HDPE to nano sodium sulfate is 9∶1,the tensile strength of HDPE/nano sodium sulfate composites is 27.15 MPa.After 20 days of thermal oxidative aging,the elongation at break and tensile strength of HDPE/nano sodium sulfate composites with added antioxidants are 36.0%and 39.50 MPa,respectively,indicating a significant enhancement in thermal stability.Enhanced HDPE exhibits excellent tensile strength and thermal stability,making it an alternative material for the packaging industry.

关 键 词：高密度聚乙烯 抗氧化剂 热稳定性 无机纳米粒子 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]