Phase-change thermal insulation wadding and preparation method thereof

Abstract

The invention provides a phase-change thermal insulation floc and a preparation method thereof. The phase-change thermal insulation flakes provided by the present invention include: a moisture-conducting fiber web layer, a heat-storage fiber web layer and a heat-insulating fiber web layer arranged in sequence and connected to each other through a non-woven needle punching method, wherein the moisture-conducting fiber web layer is The fiber web layer is made of ordinary fiber, special-shaped hollow microfiber and crimped fiber, the thermal storage fiber web layer is made of phase change cellulose fiber, and the heat insulation fiber web layer is made of airgel polyamide Fiber mesh layer made of imide fibers. The phase-change cellulose fiber contains cellulose fiber and phase-change microcapsules incorporated in the cellulose fiber, and the phase-change microcapsules are solid-liquid phase-change microcapsules that undergo phase change at 15-35°C; The imide fiber contains polyimide fiber and an airgel film wrapped on the surface of the polyimide fiber.

Description

technical field [0001] The invention belongs to the technical field of functional clothing materials, and in particular relates to a phase-change thermal insulation wadding and a preparation method thereof. Background technique [0002] The most used thermal insulation materials for clothing are mainly cotton batting, down and other flakes. In order to achieve a higher heat-retaining effect, the thickness of the flakes must be increased, which causes the heat-retaining clothing to be too fluffy, causing the wearer to appear bloated or even inconvenient to move, thus limiting the further improvement of the heat-retaining performance of the clothing. In recent years, with the improvement of textile technology, people have higher and higher requirements for thermal clothing. They all hope that the thermal insulation materials of clothing are not only excellent in warmth retention, light and flexible, but also able to buffer the impact of external temperature changes on the huma...

AI Technical Summary

Problems solved by technology

However, there are the following problems in the thermal insulation flakes processed by mixing phase change fibers and ordinary fibers: the phase change microcapsules on the surface of the phase change fibers are easy to fall off during production and use, which greatly reduces the intelligent adjustment of the thermal insulation flakes. temperature function; moreover, the breathability and softness of this thermal insulation flake are relatively poor, which greatly reduces the wearing comfort of thermal clothing

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