A kind of flexible phase change composite material with cross-linked network structure and preparation method thereof

Abstract

A flexible phase-change composite material with a crosslinked network structure and a preparation method thereof belong to the field of composite materials. Including: a flexible polymer matrix, carbon nanotubes (CNT) cross-linked with the flexible matrix, and filled solid-liquid phase change materials; by adding a cross-linking agent for chemical cross-linking reactions, a flexible polymer / carbon nanotube based The three-dimensional cross-linking network of the tube, this chemical cross-linking effect can reduce the interfacial hindrance of CNTs and solve the problem of uneven dispersion of CNTs. It is beneficial to improve the packaging efficiency of solid-liquid phase change materials, and significantly enhance the mechanical properties and heat storage performance of phase change composite materials. The material of the invention has stable phase transition performance and has the functions of temperature regulation and thermal energy storage. The material of the invention is easy to cut and process, exhibits good flexibility at room temperature, and has good application prospects in the field of temperature control of flexible electronic devices.

Description

A kind of flexible phase change composite material with cross-linked network structure and preparation method thereof technical field The invention belongs to the field of flexible phase change materials, and more particularly, relates to a flexible phase change material having a cross-linked network structure. A composite material and a method for making the same. Background technique Shape-stable phase change materials (PCMs) that can release and absorb large amounts of latent heat during the phase change process are of great importance in many of great interest in fields such as thermal management of flexible electronics and batteries, temperature regulation systems for smart fabrics And controllable thermal storage applications for energy efficient buildings. These fields all place high demands on the flexibility of phase change materials. However, now For some dimensionally stable composite phase change materials, conventional olefin polymers are mostly used a...

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Problems solved by technology

[0005] The invention provides a flexible phase-change composite material with a cross-linked network structure and a preparation method thereof, which is used to solve the problem of dispersion of carbon nanotubes in a phase-change medium that is difficult to solve in the prior art. The existing shape-stable phase-change composite material The technical problem of poor flexibility effect makes the flexible phase change composite material have excellent application prospects in the fields of photothermal energy storage and battery temperature control

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