Aerogel filled structure for bedding and clothing and application of aerogel filled structure

Abstract

The invention discloses an aerogel filled structure for bedding and clothing. The aerogel filled structure comprises a breathable fabric and / or breathable film and aerogel large particle monomers and / or aerogel small particle aggregates; the aerogel large particle monomers comprise aerogel large particles and coating layers coating the aerogel large particles; the breathable fabric and / or breathable film completely coats a plurality of aerogel large particle monomers and / or the aerogel small particle aggregates; the sizes of the aerogel large particle monomers and / or the aerogel small particleaggregates are greater than that of breathable gaps and needle holes of the breathable fabric and / or breathable film. The aerogel filled material disclosed by the invention is prepared into clothingand bedding to realize the advantages that excellent heat insulation performance and high body fitness are achieved; a free air layer inside clothing is reduced or even eliminated and further the insulation performance is improved; the phenomenon that powder falls from aerogel is avoided and health hazard to a user is avoided; in addition, the phenomenon that the heat insulation performance gets poorer due to the reduction of the aerogel caused by powder falling is prevented; besides, the clothing and bedding have the characteristics of breathability, no stuffiness and high comfortableness.

Description

technical field [0001] The invention belongs to the field of filling materials for clothing and bedding, and relates to a powder-free and vapor-permeable airgel filling structure and the prepared clothing and bedding, in particular to ultra-thin clothing, quilts, sleeping bags, hats and gloves containing airgel . Background technique [0002] Airgel is currently known as the solid with the best thermal insulation performance and the lowest density. It can lock a large amount of still air in a small space, has extremely low thermal conductivity, and is extremely light in weight. It has excellent performance as a thermal insulation material. However, airgel is a brittle material, and it cannot be directly applied to clothing and bedding as a whole or a whole piece of products that need to be repeatedly bent during use and / or storage; therefore, the airgel must first be made into particles or powders and then Make it attached or wrapped into other substrates for use. [0003...

AI Technical Summary

Problems solved by technology

If a large-area fully-enclosed material is used to make aerogel-containing flat film capsules as clothing interlayers, although the powder drop phenomenon can be overcome, it will cause the clothing products to have no vapor permeability, stuffy, sweaty, and poor use effect; and Also unable to overcome serious safety hazards such as long-term use or powder leakage after accidental puncture

[0010] All of the above existing airgel clothing technical solutions are trying to use the excellent thermal insulation properties of airgel to make extremely thin textile materials or interlayers. This is certainly a direction worth striving for; but it has overlooked an important one. Problem: There will always be more or less air layers between the human skin and these extremely thin textile materials or interlayers; especially there are a large number of concave-convex curved structures such as human physiological curvature, trunk cross-section depression, joint surface, etc. These concave-convex curved structures and the space formed by the natural sagging of extremely thin fabrics or interlayers make it not close to the human body, resulting in a large number of free air layers

These free air layers not only have strong convection and heat dissipation capabilities, but also, due to the extrusion of human body movements on these spaces, the hot air in them will be continuously extruded to the outside, and at the same time, due to the extruded peripheral areas of these spaces, After the fabric and / or the interlayer are stretched and tightened, the cold air from the outside will be sucked into these spaces, causing the hot air in these spaces to be continuously spit out and the cold air to be continuously inhaled. The heat insulation effect will naturally be greatly reduced

The main reason why several brands of airgel clothing have been complained by a large number of consumers as "poor thermal insulation effect" or even "aerogel clothing scam" is here: simply measuring the thermal conductivity of these airgel clothing interlayers. When the thermal conductivity, thermal resistance, Cro value or thermal insulation rate, the thermal insulation effect is good (even super good), but after it is made into finished clothing and worn by consumers, consumers can't feel it. to the good or excellent thermal insulation properties of these interlayers, resulting in a large number of complaints

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