Xu Qingzhou and more than a dozen of his students gathered around the plateau, each bringing chairs to sit down, forming a small circle.

Looking at everyone, Gao Yuan said with a smile: "At present, there are five development routes in the field of heating fibers in the world. ”

"First of all, far-infrared fiber, by incorporating alumina, magnesium oxide, zirconia, or titanium dioxide, silica, etc., into the fiber material, to improve the absorption of sunlight and other external infrared rays, so as to play a heat storage and thermal insulation effect, in short, is to absorb the heat of nature."

"In this field, our Japanese counterparts are in absolute leadership, and Japan's Bell Synthetic Fiber's Ceramino technology, Komatsu's DynaLive, Fujibo's INSERARED, and Kuraray's LONWAVE have occupied almost all of the global market share."

"The second is near-infrared fiber, which also absorbs light and heat from nature in terms of principle, and the dominant Japanese companies are also Japanese companies, Unijico's Thermotron, Mitsubishi rayon's Thermocatch, and Torayheat."

"Because the three major near-infrared fibers all start with the letter T, so they are also known as 3T, all the products in the name of far-infrared or near-infrared in the world, whether he is a Chinese brand or a French brand, consumers finally buy it, in fact, all are Japanese fibers."

Gao Yuan said this, and a sigh came from the room.

People only know acrylic, spandex and other ordinary chemical fiber products, yes, these ordinary chemical fibers can be made in China, and the output is huge.

But those located at the top of the pyramid, the most profitable, the highest technology products, but Japan, South Korea, Europe and the United States of the world, their number of products, high quality, simply make the domestic chemical fiber students feel hopeless.

"The third is electric heating, which generates heat through conductive fibers and built-in energy, and the upper limit of this technology is very high, and it is possible to challenge ultra-low temperatures of about -100 degrees in the future."

"However, it is a pity that it has a pre-technology tree that has not yet been lit up, that is, large-scale graphene preparation technology, without the electric heat generation of graphene technology, the efficiency is too low, so it is not within the scope of our consideration."

In this regard, the students nodded in agreement.

In fact, if the large-scale graphene preparation technology really comes out, not only to solve the problem of heating fibers, but also most of the current problems in the field of materials science can be solved overnight!

This is the magic of basic disciplines!

As long as a basic research is made, the whole world will benefit!

"The fourth is phase change temperature control technology." Gao Yuan spoke quickly and continued: "Using the principle of absorbing or releasing heat during the phase transition of matter, it absorbs heat when the ambient temperature is high, and then releases heat when the ambient temperature is low. ”

"The technical difficulty and cost are relatively high, at present there is only one company leading, the German Ottheim Group registered production of Outlast fiber in North America, I have carefully studied, phase change temperature control technology should not go this way, everyone knows it, don't care about it."

"The following focus is on, the fifth major technical route in the field of heating fibers, hygroscopic heating fiber technology, it is the closest technology to nature, such as the well-known wool fiber, which is a typical moisture absorption and heating, when wool encounters moisture, fiber molecules and water molecules attract and combine with each other, and the kinetic energy of water molecules decreases rapidly and is converted into heat energy and released."

"Every winter, we like to wear sweaters, we think sweaters are warmer, what is the reason?"

"It is because of the hygroscopic and heat-generating properties of wool fibers that it can magically absorb body moisture and convert it into heat."

"However, unfortunately, in the field of hygroscopic and heating fibers, the leading position is still the Japanese company, the EKS fiber developed by Toyobo of Japan, under the condition of temperature of 20 degrees Celsius and relative humidity of 65%, the moisture absorption capacity can reach 3.5 times that of cotton cotton, and the heat absorption and dissipation is twice that of wool!"

"In addition to eks fiber, Toyobo also has a higher-end N38 product line, Toray's Softwarm fiber, Warmsensor fiber, Japan's Asahi Kasei's Thermogear fiber, Japan's Mitsubishi Chemical's Renaiss-α fiber, which are also among the top in the world."

I'll it!

How come there is little Japan everywhere!?

This is the biggest feeling after listening to Gao Yuan's words.

Leaving aside the two routes that are not lit up in the front skill tree and those that are considered to have little development potential, there are three major technology routes left, and no matter which direction you go, you will encounter strong competitors from Japan.

And these Japanese opponents are not one or two, but in groups, one by one, and there are huge numbers.

There is no way, just as the field of quick-drying fibers cannot bypass the North American DuPont Group, in the field of self-heating fibers, it is impossible to bypass the Japanese group in any case, and they have already formed a de facto monopoly in this field.

"As the old saying goes, good steel should be used on the blade, even if the plasticity of X fiber is very strong and the potential is great, we can't blindly pursue big and complete." Gao Yuan said with emotion, "Let the X2 fiber have far-infrared heating, near-infrared heating, phase change temperature regulation, plus moisture absorption and heating, is this good?" ”

"Of course it's great, but I'm afraid that I won't be able to chew too much."

Gao Yuan's words were actually for himself.

A while ago, when the subsystem opened task 3, it also supplemented his knowledge.

So Gao Yuan relied on the knowledge provided by the system and began to plan a super all-round thermal fiber, but as time passed, he was never able to succeed.

Now Gao Yuan finally understands that even if he has a system in his head, he can't do whatever he wants, and he still has to eat the meal one bite at a time.

Today's meeting is a meeting to determine the final technical route, and from now on, we will concentrate our efforts on launching an attack on the most critical point, and we can no longer pursue the big and comprehensive.

Boom~

Gao Yuan wrote on the blackboard in English CLO, which means Crow value.

The Crowe value is an international standard, to put it simply, the higher the Crowe value, the better the thermal performance.

For example, cotton has a Crowe value of 0.04, Merino wool has a Crowe value of 0.084, a down with a fill power of 500 can reach a Crowe value of 0.7, and a top-of-the-line down product with a fill power of 850 can reach an astonishing 2.53 Crowe value!

Gao Yuan's pen tip still didn't stop, and soon, a blackboard was full of material properties and the deduction route of the chemical fiber manufacturing process.

"Quite simply, our goal is one fiber, two forms." Gao Yuan said in a deep voice: "In terms of chemical proportion, we want to make X2 fiber have the characteristics of moisture absorption and heat, and in terms of technology, we want to improve the super honeycomb structure, so that the original straight fiber filament becomes fluffy fiber velvet. ”

"In the end, we will use X2 fiber yarn to fight against Toray, Asahi Kasei, Mitsubishi Chemical, Toyobo and so on to form the Nippon Chemical Fiber Group."

"Use X2 fiber velvet to change the ecology of the entire garment industry! Replace expensive duck down and goose down! ”

As soon as Gao Yuan's words fell, everyone applauded.

In many cases, people who engage in scientific research are most afraid not of hard work, but of not being able to understand the general direction, and of leading insiders to lead insiders, and in the end they will waste their efforts and work blindly.

Before, the plateau did take a bit of a detour, there was a system, self-confidence swelled, blindly pursuing high-end, the pursuit of large and complete.

But fortunately, he corrected his mistake and returned to the right direction in time after discovering that the situation was wrong.

No matter how many heating fiber research and development routes there are, the plateau only needs to absorb moisture and heat this one.

As for X2 velvet, it's just a process improvement.

As we all know, the biggest highlight of X1 fiber is the super honeycomb structure.

As long as on this basis, over-puffing is carried out to allow the super honeycomb structure to burst like popcorn, and a split fiber fleece will be obtained.

Naturally, the fiber fleece cannot be used to make fabrics, and the thing will be scattered as soon as the wind blows, but it can be stuffed into the fabric as a sandwich, or re-worsted to make fleece, and the velvet can be used to weave fleece or sweaters.

All in all, materials science is the cornerstone of all industry.

Once the problem of the base material is solved, there is simply not much that can be done.