Facing the flame of 1300 ℃, there is a kind of cloth that can be made without injury! The fabric as thin as cicada's wings can make the mobile phone lose its signal! When these "black technologies" came out, did you feel that textile is subverting your cognition? Let's Talk invited Xu Weilin, academician of the Chinese Academy of Engineering and president of Wuhan Textile University, to share the "new story" in the textile field.

Put the world record around your neck

What kind of experience is it?

At the beginning of the program, the CCTV host Sa Benin appeared in front of the audience with a new image. The colorful scarf he wore attracted everyone's attention. This scarf should not be underestimated, It uses the lightest and thinnest textile fabric in the world, and its fiber diameter is only one fifth of the hair 。

Academician Xu Weilin reveals the secret, This scarf is made of expensive cashmere As we all know, the single fiber of cashmere is too short to be spun into extremely fine yarn, but Academician Xu Weilin and his team, relying on the "embedded spinning" technology, have successfully produced the world's finest yarn and the thinnest fabric, breaking the limits of traditional textile technology and greatly improving the production capacity of the textile industry. More Than This, The textile technology used in this scarf was also used on the five-star red flag carried by Chang'e V It belongs to the real aerospace technology.

Tail wing of C919

Even weaving technology is needed

Do you dare to imagine? The tail wing of the domestic large aircraft C919 also needs weaving technology!

Academician Xu Weilin introduced that among all materials, fiber material has the highest specific strength along the length direction, so it can be widely used in The construction of fishing rods, racing cars, light vehicles and even large airplanes . For example, Carbon fiber is widely used in C919 , woven carbon fiber material, Light weight and high strength It can ensure that large aircraft can fly farther and faster. Not only planes in the sky, but also cars running on the ground also use various fiber materials and textiles, such as car tires, seat belts, airbags, etc. Academician Xu Weilin, Twenty or thirty kilograms of fiber materials or textiles will be used in each car 。

How to choose down jacket

You know what?

In the cold season, down jacket has become a necessary item to resist the cold wind. However, do you really know how to choose a warm down jacket? Academician Xu Weilin told us that, The thermal insulation performance of down jacket first depends on a key indicator - gram weight. In short, The looser the down jacket is, the better the warmth retention effect will be. In addition, warmth retention is also closely related to the static air content per square meter of down jacket. Therefore, high-quality down jackets usually use windproof fabrics with high count and density as the outer layer, which can not only effectively prevent down from drilling out, but also reduce air flow. The air flow is effectively controlled, and the greater the static air volume inside the down jacket, the better the thermal insulation performance.

What will the future textiles look like?

Scientific and technological progress is leading us into a new textile era. Future textiles will no longer be limited to traditional functions, and even the most familiar textile bed sheets and clothes will have "new stories". With the improvement of people's pursuit of quality of life, The textile industry will increasingly incorporate intelligent wearable technology, which can sense and respond to the physiological characteristics of the human body. For example, patients in hospitals may use a Smart bed sheet , it can not only monitor the times of turning over, but also track the heartbeat and temperature in real time; During training, athletes may wear Smart chest or wrist guard . Even the electric energy generated by the foot pressure when we walk can be collected to charge mobile phones and heat clothes

Academician Xu Weilin said that there is no backward industry, only backward technology. With the empowerment of new technology, the future textile application scenarios will be more and more extensive. This is a leap from quantitative change to qualitative change brought by the new quality productivity for the textile industry.

(Source: CCTV News)