一种耐寒自加热电缆及其制备方法
The cold-resistant self-heating cable with a multi-layer co-extruded structure utilizes the volume change of core-shell phase change material to trigger the cracking and closing of the conductive shell, solving the problems of low temperature control accuracy, slow response speed and poor long-term stability of existing self-regulating heat tracing cables. It achieves efficient temperature control and safe insulation, and simplifies system design.
CN122179936BActive Publication Date: 2026-07-17LIAONING XINLIAOBEI CABLE CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- LIAONING XINLIAOBEI CABLE CO LTD
- Filing Date
- 2026-05-13
- Publication Date
- 2026-07-17
Smart Images
Figure SMS_1 
Figure SMS_2 
Figure SMS_3
Abstract
本发明公开了一种耐寒自加热电缆及其制备方法，属于功能性特种电缆技术领域。该电缆从内至外依次包括平行导电线芯、发热芯层、电气绝缘层、电磁屏蔽层和耐寒外护套层，所述发热芯层中含有核壳相变材料，该核壳相变材料由低共熔有机物构成的相变芯材、包裹芯材的低模量弹性硅橡胶封装层以及最外层的脆性导电壳组成。本发明通过相变芯材的温度响应应力，驱动表层脆性导电壳裂纹导电网络的分裂（高电阻）或结合（低电阻），即实现微观机械开关的协同作用，从而实现宏观上快速、精准、高开关比的自限温功能，同时辅以导热网络和次级导电网络，兼具优异的冷启动性能、热均匀性、循环稳定性和耐寒性，特别适用于高寒地区管道防冻保温。
Need to check novelty before this filing date? Find Prior Art