Wearing it is lighter and warmer than the Bosideng down jacket, and the bosses of listed textile companies are looking forward to it

You must have seen this saying circulating on the Internet: "Graphene is the panacea, perovskite is the panacea." Of course, there is a reason for saying this, but I still plan to do it. Graphene gets its name right.

Graphene has excellent optical, electrical, and mechanical properties and has important application prospects in materials science, micro-nano processing, energy, biomedicine, and drug delivery. It is considered a future revolution. sexual material. And it has now begun to fully enter the market application stage.

According to statistics from CITIC Securities, the scale of my country's graphene industry in 2018 was approximately 11.1 billion yuan, an increase of 4.1 billion yuan compared with 2017 and a year-on-year increase of 58. The market size is expected to reach 20 billion yuan by 2021, and is expected to reach 100 billion yuan by 2025, accounting for more than half of the world's market size, becoming the world's largest graphene consumer country.

The main domestic listed companies in graphene include: Tongcheng New Materials (603650), Yulong Shares (601028), Del Future (002631), Baichuan Shares (002455), Hangzhou Electric Co., Ltd. (603618), Oriental Materials (603110) ), Weixing New Materials (002372), etc.

Graphene has a wide range of applications. Let’s talk about one of them today - graphene heating clothing. It is lighter and warmer than a down jacket. Bosses from listed textile companies are expecting that it may quickly replace traditional warm clothing.

Whether in the severe cold climate of -30°C in the north or the cold and humid environment in the south, graphene heating clothing can heat up to around 40°C in 30 seconds with an efficient thermal insulation effect. This high-tech clothing, It has entered our daily lives, and we ordinary people can already personally experience the warmth and health from high technology. Thinner and warmer winter clothing can bring them more convenience.

Graphene heating clothing is made of graphene heating film. The graphene heating film uses ultrasonic and stirring methods to evenly disperse graphene powder in organic solvents to obtain a graphene solution, which is pumped through The filtration method is to evenly cover the graphene on the organic filter membrane or the aqueous filter membrane, and then separate the graphene film and the filter membrane through mechanical peeling, soaking or organic solvent dissolution to obtain the graphene film, and finally the graphene film is Add electrodes to it and apply voltage to it to generate heat.

Due to graphene’s unique two-dimensional nanostructure, large thickness-to-diameter ratio, high specific surface area and the characteristics of a uniformly connected conductive network between graphene sheets, when a lower voltage is applied ( 1 10V) can generate higher heat.

In addition to high heat production efficiency, the main characteristics of graphene heating suits also have physical therapy functions. Its unique hexagonal structure can reflect the far-infrared rays emitted by the human body and effectively maintain the body's temperature. The 6μm 14μm far-infrared light emitted by graphene when it generates heat is very beneficial to human health.

In addition, graphene fabrics are lighter, more breathable, and have good elasticity. For example, at the closing ceremony of the 2018 Winter Olympics and the 2019 Spring Festival Gala, actors wearing thin and lightweight graphene smart heating performance costumes will not be worn. Frostbite can also ensure smooth and stretched movements. The smart graphene heating clothing exhibited at the 2018 China International Clothing and Apparel Expo can realize artificial intelligence voice dialogue, and can easily realize human-clothing interaction, fine temperature control, customized parameters, and provide personalized health usage plans, etc.

As people have higher and higher requirements for clothing performance, smart heating clothing will pay more attention to functional integration. In addition to keeping warm, it should also have health care, antibacterial, antifouling, antistatic and other functions. The rapid promotion of the Internet of Things provides opportunities for the intelligent development of heating and thermal clothing.

The scalability and compatibility of clothing not only lay the foundation for the realization of multi-functions, but also provide a platform for the integration of sensor elements.

In the future, intelligent heating clothing will not only be lightweight and warm, but will also gradually improve in human health sensing, monitoring, care, disease prevention, and disease early warning.

Heating materials are the key to the development of intelligent heating and thermal clothing. In recent years, new materials such as carbon fiber and graphene have been used as heating elements to develop products such as heating and thermal underwear and heating and cold-proof clothing. With the development of technology, smart heating clothing will become a hot spot in the heating and warmth industry, be more widely used, have huge market potential, and its development will also be more diversified.

Graphene has many other application fields. We will talk about the others next time. As for the "miracle drug perovskite", is there anyone interested in it? I'll take a look when I get the chance, so stay tuned.