Polyacrylate phase change microcapsules and preparation method thereof

Abstract

The invention discloses polyacrylate phase change microcapsules and a preparation method thereof. According to the preparation method, an organic anti-ultraviolet absorbent is combined with an acrylate monomer through chemical reaction, anti-ultraviolet modified polyacrylate is taken as a wall material, a low-melting-point phase change material is taken as a core material, and the microcapsules with an anti-ultraviolet function and an intelligent temperature control function are prepared through a suspension polymerization method. The preparation method of the polyacrylate phase change microcapsules is simple and mild in reaction condition, and the prepared phase change microcapsules are uniform in particle size distribution, good in thermal stability, capable of being subjected to high-temperature heat setting treatment and good in application prospect in the fields of multifunctional summer textiles and outdoor textiles.

Description

technical field

[0001] The invention belongs to the field of functional microcapsules, in particular to a polyacrylate phase-change microcapsule with dual functions of anti-ultraviolet and intelligent temperature control and a preparation method thereof. Background technique

[0002] Phase change materials are a class of materials with good energy storage functions. During its phase transformation process, it can absorb or release a large amount of heat and keep its own temperature approximately constant, thereby realizing energy storage and release, and can be reused. However, phase change materials are prone to leakage and phase separation during the phase change process, which greatly limits their applications. Microencapsulation technology not only overcomes the shortcoming of easy leakage of phase change materials, but also increases the heat transfer rate and specific surface area of ​​phase change materials through microencapsulation, so that phase change materials h...