Polypropylene Based Thermoplastic Polymers for Potential Recyclable HVDC Cable Insulation Applications
Polypropylene Based Thermoplastic Polymers for Potential Recyclable HVDC Cable Insulation Applications
复制标题
用于潜在可回收高压直流电缆绝缘应用的聚丙烯基热塑性聚合物
DOI：
10.1109/tdei.2017.006230
复制
发表时间：
2017-06-01
影响因子：
3.1
通讯作者：
Jiang, Pingkai
中科院分区：
文献类型：
--
作者：
Huang, Xingyi;Fan, Yanyan;Jiang, Pingkai
热塑性材料由于其可回收性和易于加工性而高度期望用于电力电缆绝缘应用。它们特别适用于高压直流（HVDC）电缆绝缘，因为在电缆生产过程中不存在副产物，这可能导致不期望的空间电荷积累和脱气成本的减少。聚丙烯基聚合物由于其高熔融温度和可调节的机械和电气性能，可能具有可回收热塑性电缆绝缘应用的潜力。本工作旨在评估全同立构聚丙烯、丙烯-乙烯嵌段共聚物和无规共聚物在热塑性电缆绝缘应用中的潜力。我们研究了六种不同聚合物（两种全同立构聚丙烯、两种嵌段共聚物和两种无规共聚物）的熔融结晶行为、晶体结构、超分子结构、力学性能、空间电荷分布和直流击穿强度。综合分析这些参数表明，丙烯-乙烯二元无规共聚物更适合于热塑性电缆绝缘应用。
Thermoplastic materials are highly desirable for power cable insulation application because of their recyclability and ease of processing. They are particularly suitable for high voltage direct current (HVDC) cable insulation because of the absence of byproducts during cable production, which may result in the reduction of undesirable space charge accumulation and the degassing cost. Polypropylene based polymers may have the potential for recyclable thermoplastic cable insulation application because of their high melting temperatures and adjustable mechanical and electrical properties. This work aimed at evaluating the potential of isotactic polypropylenes, propylene-ethylene block copolymers and random copolymers for thermoplastic cable insulation application. We investigated the melting and crystallization behavior, crystal structure, supramolecular structure, mechanical properties, space charge distribution and DC breakdown strength of six different polymers (two isotactic polypropylenes, two block copolymers and two random copolymers). A comprehensive analysis of these parameters indicates that the propylene-ethylene binary random copolymers are more potentially suitable for thermoplastic cable insulation application.