During the Beijing Winter Olympics, many staff members can still feel the warmth of melting even in the cold wind and ice and snow, which is the credit of graphene, the "king of new materials". On February 17, the reporter learned in the large-scale theme interview activity of "Science and Technology Winter Olympics Enterprise Tour" organized by the Propaganda Department of the Beijing Municipal Party Committee, the Municipal Science and Technology Commission and the Zhongguancun Management Committee that graphene flexible thermal management material technology was successfully applied during the Winter Olympic Games, and the graphene heated scarf, graphene heated vest, graphene heated gloves and socks made of this technology helped the staff of the Winter Olympic Stadium feel warm in an extremely cold environment.
Unlike the Summer Olympics, the temperature of the Winter Olympic sports venues can reach as low as minus 30 degrees Celsius, and the conventional heat preservation devices are no longer competent, which poses a huge challenge to the warmth of the staff and the normal operation of the equipment. With the support of the Beijing Municipal Science and Technology Commission and the Zhongguancun Administrative Committee, Aijia Technology, an incubation enterprise of Beijing Graphene Technology Research Institute, undertook the special research and development of the key topic of "Low Temperature Environment Graphene Intelligent Heating Products and Thermal Guarantee Application" of the Winter Olympics of Science and Technology.
Second-generation graphene textile flexible heating material
On the 17th, at the Beijing Graphene Technology Research Institute, the staff showed a piece of cloth that felt a little close to pure cotton products. 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 this is the second generation of graphene textile flexible heating materials developed by the technical team, and this material that can "heat" is processed with graphene and carbon nanotube dispersion auxiliary process.
Put on the graphene heated vest, put a card-sized light charging treasure connected to the vest in your pocket, press the pocket button switch on the chest, and after a while, you will feel a warm current. "Graphene materials are used in the neck and waist of the vest. With only electricity required, graphene materials can quickly convert electrical energy into heat energy efficiently, promoting blood microcirculation at these blood vessel interweaving points, thereby accelerating the heating of the human body. Chen Lijun said while demonstrating graphene heating vests.
Graphene heated vests, scarves, gloves, etc
It is understood that graphene is currently known to be the thinnest, the strongest, the best conductivity of electricity and heat conductivity of a new type of nanomaterial, its discoverer won the 2010 Nobel Prize in Physics. Graphene is obtained after being stripped from graphite, and people also call it "black gold", metaphorically comparing it to gold. The new graphene thermal management material independently developed by Aijia Technology makes the flexible heating material of graphene textile material have excellent heat conductivity, and at the same time, it also has the advantages of washing resistance, softness, lightness, comfort and durability of ordinary fabrics, which can be repeatedly washed, kneaded and cut without affecting the efficacy.
In order to ensure that the walkie-talkies, mobile phones, cameras, cameras and many other working equipment of the outdoor staff of the Winter Olympics can work normally in the cold outdoors, they also wear graphene "coats". The cloud broadcast backpack using graphene flexible heating fabric material can instantly generate a temperature rise of 50 ° C, and is equipped with a low temperature battery to ensure the normal operation and effective endurance of the cloud broadcast equipment in the winter Olympic games at minus 20 °C or even lower temperature environment.
Cloud broadcasting equipment wearing a graphene "coat"
In addition to the Winter Olympic clothing, the ice piers that are loved by the whole people have also been empowered by new material technology. On November 11, 2020, the graphene ice pier hand warmer was approved for listing by the Winter Olympic Organizing Committee, and there is a "graphene core" ice pier hand warmer, which has two temperature adjustment functions of 45 °C and 55 °C, so that the licensed goods of the Winter Olympics are also full of science and technology.
Chen Lijun introduced that the graphene flexible fabric low-temperature environment intelligent heating technology developed by the team not only plays a unique role in the preparation process of the Winter Olympics, but also provides more professional technical solutions and products in the fields of automotive thermal management system, low-temperature environment special heating clothing and clothing, medical and health equipment in the future, so that the whole people can share the results of the Winter Olympics.