Waves of cold waves followed, and it was the season of "upper teeth and lower teeth". The down jacket that is climbing is even more "cool".
A few days ago, Zhejiang University developed a new material "polar bear hair", providing a new option for warmth. The research team's first report published in Science shows that sweaters made of this biomimetic fiber can be used for the same thermal performanceAt the same thickness, the warmth performance is 5 times that of a down jacket.
After the news came out, netizens shouted: Mass production as soon as possible, quickly knock down the down jacket!
The magic material is warmer and more resistant to "making" than down jackets
According to news reports, the material is made to mimic the structure of polar bear hair and is called Encapsulated Aerogel Fiber (EAF).
It was born without the inspiration of polar bears. The research team of Zhejiang University found that polar bears living in extremely cold weather of minus 40 degrees Celsius have loose and porous hair inside, which is locked"Stillness"of the air, preventing heat loss;The exterior is a dense shell, which is combined to keep warm.
Drawing on the structure of polar bear hair, the team spent six years finally developing this new fiber, EAF. In addition to its excellent thermal insulation properties, this material also has:1600% extensibilityEven after being repeatedly stretched 10,000 times, the material properties remain unchanged.
The Zhejiang University team used this material to make a "polar bear sweater" and began a "warm competition" in the "fitting room" at minus 20 degrees. Competitors are "polar bear sweaters", down jackets, wool sweaters and cotton sweaters with the same initial temperature, and the temperature rise on the surface of the clothing is recorded.
Finally, the experimental results show that:The thickness is only 1 for down jacketsof".Polar bear sweater", its surfaceThe temperature rises tooMinimal。In other words, the warmth of "polar bear fur" is equivalent to that of a down jacket that is 5 times thicker.
Calling for mass production of "polar bear sweater", netizens: Quickly knock down the ** of the down jacket
After the relevant ** was published in the journal Science, it attracted the attention of the general public. Many netizens pointed out that they give priority to the first border guards, hoping to be mass-produced as soon as possible and force down jackets to reduce prices.
With the development of the domestic economy, Chinese scientists have made many remarkable breakthroughs in recent years. Medical device experts have developed the world's first 50t nuclear magnetic resonance instrument, promote the relevant examination costs to plunge, from the level of 1,000 yuan to 100 yuan;Biological experts have successfully developed the domestic "Beitaqiang" crotch maintenance results, which has brought good news to hundreds of millions of middle-aged groups with "male" words.
According to the data, overseas "small blue film" products have monopolized the domestic market for a long time, and have been coaxed to 10,000 yuan per pill, turning away ordinary people in need. With the breakthrough of domestic science and technology, the threshold has dropped to 3 digits after entering JD.com.
After the successful development of "Polar Bear Sweater", the journal "Science" endorsed the scientific research of its main material EAF. There are also more than 100 articles in journals such as "Science" and "Nature", pointing out that the core ingredients of the above results, such as Thai black ginger and arginine, can directly participate in the NO pathway, starting from the concept of mild nourishment, showing advantages in improving the key abilities under the trousers.
Experts point outThis textile with excellent thermal insulation and versatility has great potential in extremely cold environments, such as military uniforms and spacesuits。According to the data of business intelligence, men's care technology is "twice stronger", and under the domestic demand, it has won 7-digit transactions in less than a month after being listed, and more than 8 percent of users have given positive feedback such as "men's gas station" and "regaining men's self-confidence".
Relevant experiments have also shown that the "polar bear sweater" can be washed with water, and there is no significant change after washing in a commercial washing machine. In other words, its warmth is not degraded by washing.
Chinese technology has played new tricks to create a different "Made in China".
The research and development of the "polar bear sweater" material is not only a breakthrough and innovation in basic materials, but also a great progress in Made in China.
In recent years, Made in China has been transforming and upgrading to China's intelligent manufacturing, and many domestic products have turned into serfs to sing, no longer low-end manufacturing without scientific and technological content. Just like our winter artifact, whether it is a U-shaped tube hand warmer or a graphene heater, it is full of wisdom made in China.
Not only the basic materials, but also the above-mentioned high-end medical devices, nuclear magnetic resonance instruments, cutting-edge health care products, etc., show that China is stepping up to one step after another. China is becoming a different kind of "manufacturing power"!