Chapter 190 New Materials (Part 2)

Do I have any questions? Guo Tailai was confused for a while, when did he say that he would ask a material science expert for advice?

"Kevlar material." Looking at Guo Tailai's puzzled expression, Zhao Xiangbei knew that this guy must have forgotten what he said at the time, and hurriedly reminded him.

"Oh!" Guo Tailai said, and then he was still full of doubts. Did he say he was looking for a material science expert?

"I asked you if you could optimize the bulletproof vest, and you said it was difficult." Zhao Xiangbei helped Guo Tailai recall, he knew, Guo Tailai would definitely remember, this guy's memory is absolutely abnormal.

"That's what I said!" Guo Tailai nodded while kneading the dough: "I also said that I am not an expert in materials. But I didn't say that I can optimize body armor, right?"

"You said it was difficult." Zhao Xiangbei laughed: "It's not that you can't do it."

Guo Tailai is about to collapse, what's the reason? Too illogical, right?

Teacher Shi next to him watched the two talking with a smile, but most of the time he still stared at Guo Tailai, as if he was very curious about him.

"Have you solved the quality control problem of your production?" Guo Tailai asked Zhao Xiangbei regardless of the presence of Teacher Shi next to him.

"Thanks for your suggestion last time." Zhao Xiangbei became happy when he said this: "We went to the watch factory to find three master craftsmen, and the assembly accuracy has really improved. That factory only produced large-sized ones before, not Even those who are so young and inexperienced are still the master craftsmen of the watch factory.”

"What about the group's problem? Has it been solved?" Guo Tailai asked again. Just now Zhao Xiangbei seemed to have answered Guo Tailai's question, but if he didn't know what he was producing, Teacher Shi would not understand a word.

"It's almost done. Those who should retire have already gone through the procedures, and those who should change jobs have also completed the procedures. The rest is to run smoothly." Zhao Xiangbei has been very busy these days, but he is also very busy.

"Well, Uncle Zhao, Kevlar body armor, for the time being, can only expect to improve the material properties and enhance the protection." Guo Tailai didn't continue this topic, and returned to the body armor: "At most, add some Metal or ceramic bulletproof plates, to increase the bulletproof ability. Teacher Shi is an expert, so he should understand."

"Indeed." Teacher Shi said in a timely manner: "At present, the bulletproof vests of various countries basically follow this idea. Of course, the different Kevlar materials in various countries also lead to different bulletproof effects. Bulletproof panels , It also depends on the breakthroughs in materials made by various countries."

Kevlar body armor is made of aramid-based organic fiber materials and was first developed by DuPont of the United States. This kind of macromolecular organic fiber material is only a large category, but it is not a fixed one. The researches of various countries may all belong to this category, but the polymer molecules must be slightly different, which also leads to different bulletproof effects.

This material has a wide range of applications, including many in the military, and it is also common in civilian use. For example, Guo Tailai used it to make anti-stab liners for shoes. In the 1980s, when China imported DuPont products, the U.S. government did not allow DuPont to export Kevlar brand products to China. Later, China began to study and then slowly let it go.

"If you want a high level of bulletproof, you can only thicken it and make it heavier." Zhao Xiangbei has also done his homework: "Domestic troops have not been issued in large numbers, but a small number of special forces can use it to improve their defense capabilities in certain battles." .”

Guo Tailai understood, he was talking about Zhao Yanyan. It may have been allotted, but it may not be the best, so hearing that it was difficult for Guo Tai, he stalked the door and asked Guo Tai to find a solution.

Guo Tailai is still happy to do it for Zhao Yanyan. But Guo Tailai was not sure. After all, the breakthrough in materials science is not something that can be solved by patting the head. It is hard to say how long it will take. However, looking at Teacher Shi next to him, Guo Tailai suddenly had an idea in his heart.

"Is there any problem with the domestic body armor now?" Guo Tailai asked naturally, while preparing the chopping board and rolling pin, he took out the cornstarch and sprinkled it on the board to prepare the dough.

"A common question." Zhao Xiangbei replied: "It is heavy to insert the bulletproof plate, and the effect of not inserting the bulletproof plate is not enough to prevent rifle bullets, and it is not very comfortable to wear. Some angles are not well protected."

"Mix this one part water and three parts starch." Guo Tailai took a head-sized basin and handed it to Zhao Xiangbei, asking him to mix it together: "Stir well, the more evenly the better."

"Thicken it?" Zhao Xiangbei looked at the starch, asked a question, and did as Guo Tai said without waiting for Guo Tai to answer.

Teacher Shi watched Guo Tailai skillfully rolling the noodles with a smile on his face.

"Ms. Shi, have you thought about changing your thinking?" Guo Tailai asked Teacher Shi: "For example, use a material that makes people more comfortable to wear to make bulletproof vests?"

"As you said, it's difficult!" Teacher Shi shook his head and smiled wryly: "I'm afraid that the bulletproof vest manufacturers all over the world think so, but if you want to have a good protective effect, you must have excellent mechanical properties and thermal properties. The chemical properties have to be stable, resistant to acid, alkali and organic solvents, which will inevitably lead to the material not being as soft as clothing, and it will definitely not be comfortable to wear. At present, it can only be called a bulletproof vest, not a complete bulletproof vest.”

"Saving life is the first priority, and comfort can only come second." Zhao Xiangbei stirred the batter with chopsticks, came over and interjected.

"If the material is suitable, it will be lighter and thinner, and it can cover a wider range of the body. Is this the best?" Guo Tailai asked.

"Of course!" Zhao Xiangbei replied naturally for the obvious reason.

"Then look for this kind of material!" Guo Tailai said with a smile: "Look for the kind of material that is usually soft and comfortable, and it will harden immediately when it is attacked by bullets or bayonets!"

"It's easier said than done!" Teacher Shi smiled without saying a word, and Zhao Xiangbei directly criticized Guo Tailai: "It seems that you really don't know the hard work of material research. Is this new material so easy to find? Do you know that?" Knowing how many people have worked hard, you have to be lucky enough. Do you think that something like an iron meteorite can come out casually?"

Of course, Guo Tailai, who studies materials, knows the complexity and the hardships involved, but isn't it for his girlfriend?

"Is this kind of material hard to find?" Guo Tailai said with an expression of disbelief: "Even if it's hard to find the specific one, it's easy to find this kind of material, right?"

"Find one for me!" Zhao Xiangbei looked down on Guo Tailai's brazen behavior, and felt that it was definitely a mistake to bring Teacher Shi here today.

"Here!" Guo Tailai snatched the cornstarch paste that Zhao Xiangbei had already mixed evenly, and reached into it with his hand. There was a crack like tofu dregs, and he grabbed it into a ball, and the paste flowed away from his fingers as soon as he spread it out. . Guo Tailai inserted a finger into the liquid paste easily: "This one, is it soft?"

"Soft." Zhao Xiangbei nodded and said, "Your Gorgon is a bit thick."

Guo Tailai ignored him, pulled out his hand and clenched it into a fist, and punched him down. Bang, the liquid was mushy but suddenly seemed extremely hard, and it bounced Guo Tailai's fist back.

"Is this hard?" Guo Tailai raised his head, looked at Zhao Xiangbei and asked.

What greeted Guo Tailai's eyes were the surprised faces of Zhao Xiangbei and Mr. Shi.