A phase change fiber integrating light heat and electric heat and a continuous preparation method thereof

CN122013505BActive Publication Date: 2026-06-26SUZHOU UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SUZHOU UNIV
Filing Date
2026-04-13
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing phase change fibers have shortcomings in terms of high latent heat, leak prevention, high thermal and electrical conductivity, excellent mechanical properties, and large-scale preparation, and cannot meet the application requirements of integrating photothermal and electrothermal conversion functions.

Method used

A structural design is adopted in which carbon nanotubes and polymer yarns are alternately spirally wrapped. The inner carbon nanotubes form a continuous thermal and electrical conductive path, while the outer carbon nanotubes realize photothermal conversion. Phase change fibers are prepared through ring spinning twisting and multi-layer impregnation processes.

Benefits of technology

It achieves high latent heat, excellent leak-proof performance, high thermal and electrical conductivity, and superior mechanical properties of phase change fibers, making it suitable for large-scale continuous industrial production and possessing broad application prospects.

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Abstract

The present application relates to a kind of light and electric heat integrated phase change fiber and its continuous preparation method, belong to functional fiber technical field.The continuous preparation method of the present application includes the following steps: S1, by the way of ring twister, first carbon nanotube barrel is wrapped in the surface of polymer yarn, after being immersed in first shrinkage agent, composite fiber is obtained;S2, composite fiber is immersed in phase change material or its dispersion liquid, second carbon nanotube barrel is wrapped in the surface of the composite fiber by the way of ring twister, repeat several times, after drying, light and electric heat integrated phase change fiber is obtained.The phase change fiber has high latent heat, excellent leak-proof performance, high-efficiency heat and electricity conduction capacity and excellent mechanical properties, and can be continuously prepared, with the broad prospect of large-scale production and practical application.
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