紫外光辐照交联聚乙烯性能的影响因素  

Influencing Factors for the Properties of Ultraviolet Irradiation Cross-Linked Polyethylene

作　　者：陈中区 徐开成 傅伟文 郑科鲁 CHEN Zhongqu;XU Kaicheng;FU Weiwen;ZHENG Kelu(Ningbo Qrunning Cable Co.,Ltd.,Ningbo 315823,China)

机构地区：[1]宁波球冠电缆股份有限公司,宁波315823

出　　处：《电线电缆》2025年第2期49-54,共6页Wire & Cable

摘　　要：文中研究了影响紫外光辐照交联聚乙烯绝缘热延伸性能和热收缩性能的因素,并提出相应的工艺优化措施。通过调整材料混合比例、提高导体温度、调整线芯在辐照箱中的位置、分段冷却及改变挤出配模等方法,解决实际生产中的困难,提高紫外光辐照交联电缆的产品性能。研究结果表明,色母料添加量、生产线速率、环境温度、线芯位置、辐照剂量和交联剂量等因素对热延伸性能有显著影响;分段冷却和调整配模拉伸比能有效控制热收缩性能。研究成果可为紫外光辐照交联技术的应用提供理论支持和实践指导,有助于提高电缆产品的质量和生产效率。Influencing factors for thermal elongation properties and thermal shrinkage properties of ultraviolet irradiation cross-linked polyethylene insulation were studied,and corresponding process optimization measures were proposed.Difficulties in actual production were solved by adjusting mixing ratio of materials,increasing temperature of conductors,adjusting position of the core in irradiation box,cooling in sections and changing extrusion mold,to improve product properties of ultraviolet irradiation cross-linked cables.Results showed that amount of color masterbatch,production line speed,ambient temperature,core position,irradiation dose and crosslinking dose had significant effects on thermal elongation properties.Segmented cooling and adjustment of mold tensile ratio could effectively control thermal shrinkage properties.Results could provide theoretical support and practical guidance for application of ultraviolet irradiation cross-linking technology,and help to improve quality and production efficiency of cable products.

关 键 词：紫外光辐照交联聚乙烯 热延伸性能 热收缩性能 

分 类 号：TM211[一般工业技术—材料科学与工程]