• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Electrical Insulation Conference >Novel polymer crosslinking chemistries for cable insulation
【24h】

Novel polymer crosslinking chemistries for cable insulation

机译：用于电缆绝缘的新型聚合物交联化学

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Peroxide crosslinked polyethylene is the major insulation material used in today's electric cables carrying voltages above 5 kV. Peroxide-mediated crosslinking presents cable manufacturing challenges in that there is a propensity for premature crosslinking (scorch) in the extruder. Additionally, peroxide-mediated crosslinking generates byproducts that need to be removed from the cable before final cable construction. Novel organic peroxides and crosslinking coagent technologies have been designed to address these challenges. A novel peroxide, isopropenyl dicumyl peroxide, was found to greatly improve the resistance to scorch. In addition, the novel peroxide reduced the need for degassing, since a significant amount of the crosslinking byproducts became grafted to the polyethylene during crosslinking. A novel coagent, 2-methoxy-4-allylphenyl allyl ether, provided significantly higher scorch retardance at a given level of crosslinking when compared to compositions without coagent. Polyethylene insulation compounds crosslinked using these new additives demonstrated excellent dissipation factor and dielectric constant values, indicating promise for demanding high voltage insulation applications.
机译：过氧化氧化物交联聚乙烯是当今电缆中使用的主要绝缘材料，其电缆承载在5 kV以上的电压。过氧化物介导的交联呈现电缆制造挑战，因为挤出机中的过早交联（焦化）具有倾向。另外，过氧化物介导的交联在最终电缆结构之前产生需要从电缆中除去的副产物。新的有机过氧化物和交联凝固技术旨在解决这些挑战。发现了一种新的过氧化物，异丙烯基二甲基二磺酰基，大大改善了对烧焦的抗性。此外，新的过氧化物降低了对脱气的需要，因为在交联期间将大量的交联副产物接枝到聚乙烯上。与没有凝固的组合物相比，一种新型凝胶化凝聚剂2-甲氧基-4-烯丙基烯丙基醚，在给定水平的交联水平下提供显着更高的焦化性。使用这些新添加剂交联的聚乙烯绝缘化合物证明了优异的耗散因数和介电常数，表明要求高压绝缘应用的承诺。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号