PE蜡/PVC复合材料的制备与性能研究  

Preparation and Properties of PE Wax/PVC Composites

作　　者：崔德刚 高莉 刘秉鑫 郭丹妮 马晓艺 Cui Degang;Gao Li;Liu Bingxin;Guo Danni;Ma Xiaoyi(Shanghai Kaibo Cable Special Material Co.,Shanghai 201802,China;College of Mechanical Engineering,Qinghai University,Xining 810016,China;Qinghai Juzhilong Cable Technology Co.,Xining 810016,China)

机构地区：[1]上海凯波电缆特材股份有限公司,上海201802 [2]青海大学机械工程学院,西宁810016 [3]青海聚智龙线缆科技有限公司,西宁810016

出　　处：《青海科技》2023年第4期56-61,共6页Qinghai Science and Technology

基　　金：青海省重点研发与转化项目(2021-GX-118)。

摘　　要：聚氯乙烯(PVC)因其价格低廉和加工简易成为全球电缆行业使用最多的聚合物材料,但冬季低温环境下容易变硬,极端情况下甚至出现开裂。因此,本文在纳米碳酸钙(CCR)、乙烯醋酸乙烯酯(EVA28)、丙烯酸酯(ACR301)一定配比的基础上,进行了不同用量聚乙烯蜡(PE蜡)润滑剂对聚氯乙烯(PVC)的力学性能、低温韧性、热稳定性能等的影响研究,为聚氯乙烯(PVC)在高寒地区的高值化应用提供参考价值。结果表明:适量聚乙烯蜡(PE蜡)的引入有利于提高PVC复合材料的综合力学性能和低温韧性。PE蜡的含量为0.6 phr时,PE蜡/PVC的断裂伸长率比未添加PE蜡的PVC复合材料提高10.5%,拉伸强度提高9.1%,脆化温度可达-60℃,热稳定性提高。Polyvinyl chloride(PVC)had become the most used polymer material in the global cable industry due to its low price and easy processing,but it tended to harden under the low-temperature environment in winter,and even cracks in extreme cases.Therefore,on the basis of a certain proportion of CCR,EVA28 and ACR301,the effects of different amounts of lubricant:polyethylene wax(PE wax)on the mechanical properties,low temperature toughness and thermal stability of PVC were studied in order to provide a reference value for the application of PVC in the alpine region with high value.The results showed that the introduction of appropriate PE wax could improve the comprehensive mechanical properties and low temperature toughness of PVC composites.When the PE wax content was 0.6 phr,the elongation at break of PE wax/PVC was 10.5%higher,the tensile strength was 9.1%higher,the embrittlement temperature could reach-60℃,and the thermal stability was improved than that of PVC composite without PE wax.

关 键 词：低温韧性 聚乙烯蜡 聚氯乙烯 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业]