Aerogel phase change thermal insulation material and preparation method thereof

Abstract

The invention provides an aerogel phase change thermal insulation material and a preparation method thereof. The invention provides an aerogel phase change thermal insulation material. The aerogel phase change thermal insulation material comprises a heat insulation layer and a heat preservation layer, the heat insulation layer is of an aerogel sponge structure; the heat preservation layer is compounded on one side face of the heat-insulation layer through a predetermined bonding mode, the heat preservation layer comprises a moisture-conducting fiber net layer, a heat storage fiber net layer and a heat insulation fiber net layer which are sequentially arranged and are connected with each other through a non-woven needling mode, the heat insulation fiber net layer is connected with the heatinsulation layer, the moisture-conducting fiber net layer is used for being in contact with a human body, the moisture-conducting fiber net layer is a fiber net layer made of common fibers, special-shaped hollow ultrafine fibers and curled fibers, the heat storage fiber net layer is a fiber net layer made of phase change cellulose fibers, and the heat insulation fiber net layer is a fiber net layer made of aerogel polyimide fibers. The aerogel phase change thermal insulation material further comprises a waterproof moisture permeable layer which is compounded on the other side surface of the heat insulation layer in a predetermined bonding mode.

Description

technical field [0001] The invention belongs to the field of clothing functional materials, and in particular relates to an airgel phase-change thermal insulation material 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 human...

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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