A cold-proof and warm-keeping composite material and its preparation method and application

Abstract

The invention discloses a cold-defending insulating composite material and a preparation method and an application thereof. The composite material is prepared by blending and foaming a foamable elastomer and a silicon dioxide aerogel in a mass ratio of 2: (1-10):1. The composition material is excellent in cold-defending insulating performance, and the compression cold-resistant coefficient at 30 DEG C below zero can reach 0.50. Experiments verify that in a same condition, clothes prepared by the 3mm thick composition is equivalent to the clothes prepared by a 40mm thick down feather material in cold-defending insulating effect. The composite material provided by the invention has the advantages of being light, not too fat, comfortable, attractive and the like if being prepared to garmentsor bedding. In addition, the cold-defending insulating composite material provided by the invention also has the advantages of being flexible, low in cost, energy-saving and environment-friendly and the like, the preparation process is simple, raw materials are easily available, special equipment and severe conditions are not needed, scaled production is implemented easily, and the cold-defendinginsulating composite material has extremely strong industrial value.

Description

technical field [0001] The invention relates to a composite material and its preparation method and application, in particular to a cold-proof and warm-keeping composite material and its preparation method and application, belonging to the technical field of composite materials. Background technique [0002] At present, the clothes and quilts that people use to keep out the cold mainly adopt the following materials: one is to fill the interlayer of the clothes with natural cotton, animal feather down, chemical fiber cotton, etc., although the cold and warm performance of these materials is very good. Excellent, but their shortcomings are also very obvious, because the thermal insulation principle of the above-mentioned materials mainly depends on a large amount of relatively still air remaining in the middle of the fabric, and to make a large amount of air relatively static, you need to use a relatively large amount of the above-mentioned filling materials, so that to achiev...

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Problems solved by technology

[0002] At present, the clothes and quilts that people use to keep out the cold mainly adopt the following materials: one is to fill the interlayer of the clothes with natural cotton, animal feather down, chemical fiber cotton, etc., although the cold and warm performance of these materials is very good. Excellent, but their shortcomings are also very obvious, because the thermal insulation principle of the above-mentioned materials mainly depends on a large amount of relatively still air remaining in the middle of the fabric, and to make a large amount of air relatively static, you need to use a relatively large amount of the above-mentioned filling materials, so that to achieve a good effect of keeping warm from the cold, more fillers are required, so that the clothes are thicker, overblown, hypertrophic, and costly, which not only restricts people's actions, is uncomfortable to wear, but also looks unattractive; One is to select materials that can emit far-infrared rays, such as adding ceramic powder to synthetic fibers to improve the ability of fibers to emit far-infrared rays, but this kind of insulation effect is average and the cost is high

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