The picture shows graphene flexible heating fiber material. China News Service reporter Jia Tianyong photographed
BEIJING, Feb. 17 (Xinhua) -- The Beijing Winter Olympics have tested more than 200 technologies, involving more than 60 subdivision application scenarios. These high-tech products are not only used in sophisticated competition facilities and advanced epidemic prevention equipment, but also reflected in all aspects of people's food, clothing, shelter and transportation. In the clothes worn by the people on the field, there is the application of graphene technology.
In the theme interview of "Science and Technology Winter Olympics Enterprise Trip" on the 17th, the reporter walked into the beijing graphene technology research institute incubation enterprise - Beijing Innovation Aishangjia Technology Co., Ltd. (Aika Aijia Technology) to "crack" the application of graphene flexible thermal management material technology in the Beijing Winter Olympics.
Strong heat conduction: The Winter Olympics are "warmed"
The temperature in the Winter Olympic Stadium is low and the body feels cold. It is understood that during the Beijing Winter Olympics, the temperature in Zhangjiakou can be as low as -20 °C. How do athletes, volunteers and staff cope with low temperatures? What high-tech equipment makes people "calm" in the cold?
The picture shows vests, gloves, scarves, socks, etc. using graphene technology. Photo by Jia Tianyong, a reporter of China News Service
In the beijing winter olympic field, graphene "warm debut", to show the world China's independent research and development of new heating materials, but also let the people in the ice and snow arena have a heavy temperature guarantee, not afraid of the cold.
Graphene is a two-dimensional carbon nanomaterial with excellent optical, electrical and mechanical properties. Chen Lijun, head of the special project of China Hangfa Graphene Materials Winter Olympics and chairman of Beijing Innovation Aishangjia Technology Co., Ltd., introduced that graphene is the material with the highest thermal conductivity at present, and in the case of electricity, heat energy is generated by mutual friction and collision between carbon molecular groups, and thermal energy is evenly radiated out in a planar manner through far infrared, which can be well accepted by the human body and produce warmth from the inside out. The graphene heating technology and products guaranteed by the Beijing Winter Olympics have been fully verified and applied in the three major competition areas of Beijing, Yanqing and Zhangjiakou.
Very safe: a "cloth" that heats up
How is graphene heating technology applied at the Beijing Winter Olympics? According to reports, in the clothes, scarves, socks, gloves and other clothes worn by the relevant personnel of the Beijing Winter Olympic Games, there is a "hidden mystery", and the world's leading graphene textile flexible heating material is used.
The picture shows the graphene ice pier hand warmer. China News Service reporter Jia Tianyong photographed
Graphene textile flexible heating material is a new type of material in the form of textile, both excellent heating efficiency and efficient energy conversion, in order to protect the Beijing Winter Olympics, the second generation of graphene textile flexible heating materials upgraded and developed this time will make graphene into a "cloth" that can heat up.
Chen Lijun introduced that the flexible heating material of graphene textile has excellent heat conductivity, but also has the advantages of washing resistance, softness, lightness and comfort and durability of ordinary cloth, which can be washed, kneaded and cut repeatedly without affecting the efficacy. "Graphene textile flexible heating material is like a normal piece of cloth, this material is very soft and breathable, washable, and safe."
At the interview site, Chen Lijun wore a graphene heated vest to demonstrate to reporters: "This small button on my chest is actually the control device of this set of clothes, light touch the button, the light is on, and the clothes start to heat." He said that the device can quickly make the clothes reach 55 ° C in a low temperature environment, and the user can adjust the three gears of 55 ° C, 45 ° C and 35 ° C as needed to combat the cold of the field.
The picture shows the laboratory of Beijing Graphene Research Institute. China News Service reporter Jia Tianyong photographed
Fast start: "no pressure" in low temperature environment
It is understood that at present, graphene heating scarves, graphene heating vests, graphene heating gloves and socks and other products suitable for rapid start and efficient operation in low temperature environment have been applied in the three major competition areas of the Beijing Winter Olympics, and these products can quickly heat up in the environment of -20 °C, continuous heating for 2-4 hours, to meet the different needs of various venues and various types of work.
Do Enough warm clothes still need to be heated? Chen Lijun said that conventional warm clothing often plays a warm role above -20 ° C. But in the extremely cold environment, especially on snow days, snowflakes melt after hitting the body, even if the clothes have a certain waterproof function, individual snowflakes can still penetrate into the clothes, and the thermal insulation performance will decline after entering the water.
"At this time, the electricity is supplied to graphene, and the heat guaranteed by the rapid production of graphene can drain the wet water vapor and restore the thermal insulation performance of the clothes," Chen Lijun said, which can ensure that people can quickly recover their body temperature in a very short period of time and enter a "combat state".
Wide application: Licensed goods are more practical
At this Winter Olympic Games, cloud broadcasting technology was widely used, allowing audiences everywhere to watch the Winter Olympics without leaving their homes. In order to solve the problem of the normal operation of the low temperature environment of the cloud broadcasting equipment, the technicians have developed a cloud broadcast backpack (containing graphene heating layer and thermal insulation layer) using graphene flexible heating fabric materials, which can instantly generate a temperature rise of 50 ° C, equipped with a low temperature battery to ensure that in the Winter Olympic environment -20 ° C environment, the cloud broadcast equipment can be convenient to carry, lightweight travel, and can effectively cope with low temperature challenges.
High-tech is not only used in the arena, but also empowered by graphene technology in today's hot Beijing Winter Olympics licensed goods.
On November 11, 2020, the graphene ice pier hand warmer was approved for listing by the Winter Olympics Organizing Committee. According to reports, the hand warmer has two temperature adjustments of 45 ° C and 55 ° C, and the ice piers that are loved by everyone are more practical, and the warmth of science and technology is also transmitted to people. This is the first application and attempt of graphene technology in the licensed goods of the Winter Olympic Games, which makes the licensed products full of science and technology.
At present, the low-temperature heat protection function of graphene has been realized in many aspects such as winter Olympic clothing and clothing, licensed goods, heated seats, carpets, and low-temperature protection of professional equipment on the field, and the scientific and technological temperature of graphene is emitted in the arena.
After the Winter Olympics, can people in cold areas experience products related to graphene heating technology? Chen Lijun said that in the future, graphene flexible fabric low-temperature environment intelligent heating technology will also provide more professional technical solutions and terminal products in the fields of automotive thermal management systems, low-temperature environment special heating clothing and clothing, medical and health equipment, etc., so that the whole people can share the results of the Winter Olympics. (End)
Source: China News Network