The heat of the human body is transferred from the subcutaneous tissue to the skin, and then exchanges heat with the surrounding environment through the clothing to maintain the dynamic thermal balance of the human body. Therefore, the thermal management of the clothing to achieve the management of human thermal comfort has become a very popular method , Temperature regulation fabric came into being. However, most of the temperature-controlled fabrics reported so far have disadvantages such as large volume, heavy weight, poor abrasion resistance, high cost, and inability to mass-produce, and they cannot simultaneously realize passive heating and cooling functions.

Recently, the research team of Huazhong University of Science and Technology has prepared a lightweight, waterproof, soft and comfortable, brightly colored smart fabric, which can achieve zero energy consumption to keep warm and cool the skin.

The researchers used skin-friendly silk protein as a raw material and used freeze spinning to scientifically design and adjust the micro-nano structure inside the fiber to prepare micro-structured fibers with high internal porosity and low thermal conductivity. The integrated temperature-controlled phase change material and the PDMS coating can give the fiber the characteristics of strong and wear-resistant, soft and waterproof, and intelligent temperature regulation with zero energy consumption.

In addition, on the basis of maintaining the original excellent characteristics of the fiber, the research team used rich liquid coloring technology to prepare colorful microstructured fibers, and then made the microstructured fibers into a fabric through the weaving process. It has good two-way thermal insulation performance, and its thermal insulation performance increases with the increase of the number of fabric layers.

The phase change material integrated in the microstructure fiber can not only significantly reduce the fluctuation of the surrounding temperature, but also can be recycled for many times. To test the fabric's ability to regulate the temperature of human skin, the researchers embedded it in polyester gloves. When the person wearing gloves puts his hand in the environment of 50 ℃, PEG absorbs heat from the environment and cools the skin covered under the fabric; when the hand moves to a cold environment of 10 ℃, PEG will solidify and release heat, making The skin feels warm. In the alternating test of hot environment and cold environment, the intelligent temperature regulation fabric realizes the "intelligent management" of human body temperature by using the unique structural design and the combination of phase change materials without external power input.

The intelligent temperature regulation fabric prepared by the team can meet the needs of human thermal comfort while reducing energy consumption, laying a foundation for the practical application of fiber fabrics based on personal thermal management, marking economical and environmentally friendly wearable technology and energy-saving fabrics. An important step in industrial development.

Huaian Jiatai New Fiber Co., Ltd. is a large-scale polypropylene enterprise integrating R & D, production and sales of polypropylene yarn, polypropylene high-strength yarn, polypropylene industrial yarn, high-strength polypropylene yarn and polypropylene twisted yarn. If necessary, you can log on to Huai'an Jiatai Polypropylene Twisted Silk Official Website.

If you want to know more product information, please contact: Manager Zeng 189 1207 299 Website: http://www.hajtxw.com/