Microcapsule capable of improving heat storage properties and composition molded body thereof

Abstract

The invention discloses a microcapsule capable of improving heat storage properties and a composition molded body thereof. The microcapsule capable of improving heat storage properties is generally composed of shell materials and core materials. In aspect of improving heat storage properties of phase-change microcapsules, traditional methods do a large number of researches on core materials. The microcapsule capable of improving heat storage properties focuses on endowing or improving phase-change energy storage properties of the shell materials. Therefore, under the condition of identical coating rate or identical phase-change materials as the core materials, the microcapsule capable of improving heat storage properties can effectively improve the heat storage properties. The microcapsuleand the composition molded body thereof can be applied to textile products, clothes, shoes, medical products, masks, cosmetics, warehousing and transportation products, containers and wrapping materials, electronic devices, building materials, devices and other products.

Description

technical field [0001] The invention relates to a microcapsule capable of effectively improving heat storage performance and a composite molded body thereof. Background technique [0002] In order to use energy efficiently, energy-saving technologies for energy storage and recycling through the phase-change latent heat of phase-change materials have received increasing attention. Generally, phase change materials can be classified into solid-solid phase change materials, solid-liquid phase change materials, and solid-gas phase change materials. Among them, solid-liquid phase change materials are most widely used because of their abundant sources, stable phase change behavior, and small volume change. [0003] The phase-change energy storage material absorbs and releases heat to keep the ambient temperature relatively constant. It has two-way temperature regulation and adaptability, and can be used repeatedly in a temperature-oscillating environment. Phase change materials ...

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Problems solved by technology

As the polymerization degree of PEG increases, its molecular weight increases continuously, and the physical state under normal temperature and pressure gradually changes from colorless liquid to white liquid, no longer viscous liquid, translucent solid, until waxy solid ; However, after its molecular weight reaches more than 50,000, the increase in phase transition enthalpy is extremely limited, and even declines.

[0018] However, so far, efforts to improve the heat storage performance of phase change microcapsules are based on the above two methods, but neglect the research on another important component of phase change microcapsules—the shell material.

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