Functional fiber | Have you heard of the “miraculous material” airgel fiber? “It” is the best way to withstand extreme cold weather!

The world of textile fibers is always changing. , and as a major country in textile and clothing production and processing, my country is always the first to feel this change.

What are airgel fibers?

Aerogel fiber is a new type of functional fiber that has good warmth retention, hygroscopicity, breathability and other characteristics. The so-called airgel fiber, as the name suggests, refers to fiber materials for textile and clothing made of airgel. As we all know, gel is an elastic solid in which colloidal particles in a sol or solution form a spatial network structure under the action of a dispersion medium. Those that use water as the dispersion medium are called hydrogels; those that use gas as the dispersion medium are called aerogels.

Aerogel is the densest known material in the world.Because most of its internal components are gases, it looks like a cloud. Therefore, aerogel is also called “solid smoke”. The birth of aerogel originated from the idea of ​​​​expanding scientists to replace the water in jelly (hydrogel) with gas.

Air is the best thermal insulation material. For example, the fluffiness of down is a test of its quality. an important standard. More than 90% of airgel is air, so airgel fibers have extremely high thermal insulation properties. According to relevant experimental data, the thermal insulation value of polyester airgel fiber far exceeds the national standard for extremely low thermal conductivity: ≤0.02W/(MK).

At the same time, airgel fibers also have the characteristics of light weight. Because the specific gravity of airgel is very light, between 10-30 kilograms per cubic meter, the airgel yarn is actually very light. Compared with ordinary edible fiber, its thickness is only one-half, and its density is as low as 0.003 grams per square centimeter.

In addition, the airgel fibers are filled with nano-air masses, and the specific surface area of ​​the fibers is much larger than the porous hollow ultra Thin fibers, while having good hygroscopicity and air permeability, are more convenient for later stages of printing and dyeing downstream of the industrial chain.

Use of airgel fiber

Aerogel fibers with extremely high thermal insulation, moisture absorption and breathability properties also have a wide range of applications. Obviously, it is used to make cold-proof clothing, sportswear, etc. With the further development of textile fiber technology, products made of aerogel fibers, such as parts of space suits, can be applied to the aerospace field.

Those who like outdoor sports, mountain climbing, adventure, and travel cannot avoid being in the complex environment of the wild. Especially the own safety issues under low temperature conditions. According to laboratory data, the thermal insulation performance of airgel fiber at low temperatures is 2.8 times that of cotton. Its thermal enthalpy value can reach 162 J/g, and it can be used in extreme environments from minus 196 degrees Celsius to above zero 300 degrees Celsius. Provides thermal insulation performance for a long time. The airgel fiber developed by Qingdao Zhenghongxiang Technology Co., Ltd. is processed into cold-proof clothing, which can also play a role in keeping warm in extremely cold temperatures.

At the same time, the extremely high thermal insulation, moisture absorption and breathability of airgel fibers are also very suitable for application in products such as thermal underwear. The biggest problem with ordinary thermal underwear��It is warm but not breathable. When entering indoors from outdoors in winter, it is difficult for the moisture generated by the human body to be discharged after the temperature rises, resulting in a significant reduction in the user’s comfort.

Aerogel fiber is widely used. In addition to outdoor clothing and thermal underwear, it can also be used in Body armor, tents, sleeping bags, kneepads, yoga clothes and other fields.

Aerogel fiber market

From the current point of view, the use of airgel fiber in the textile and clothing market is mainly concentrated on cold-proof and warm products in winter. Traditionally, this clothing segment has been mostly occupied by cotton, down, wool, cashmere, acrylic and other products.

Industry insiders know that the thermal insulation performance of fiber materials is directly proportional to the still air content inside the fiber materials and inversely proportional to the fiber diameter. , inversely proportional to the overall material density. The airgel fiber developed by Qingdao Zhenghongxiang Technology Co., Ltd. has an ultra-high porosity of 98% and a high specific surface area. Therefore, it is theoretically the fiber for textile and clothing with the best thermal insulation effect at present. Material. As a result, airgel fiber may also be a direction for the development of thermal fiber in the future.

At present, airgel fiber is a new type of textile fiber. Consumers at home and abroad are very interested in this kind of fiber. Neither the fiber nor its textile and apparel products are well understood. Precisely because of this, the market for textile and apparel products produced and processed using aerogel fibers developed by Qingdao Zhenghongxiang Technology Co., Ltd. is still a blue ocean, which can provide unlimited possibilities for the product development of related textile and apparel companies.

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