As soon as Bai Yi's words came out, not only Ma Dili, but even Feng Chong behind the crowd was stunned, but before they could fully digest this information, Bai Yi's clear and calm voice slowly sounded in the huge warehouse: "It is said that it is a layer of window paper, but it is not an exaggeration, because the preparation of epoxy resin is nothing more than four steps, the first is chlorination, that is, the preparation of dichloropropanol, it is actually very simple to use glycerin and hydrogen chloride reaction, oh yes, you also need to add glacial acetic acid as a catalyst and heat it to 100 degrees Celsius, Dichloropropanol is naturally produced. Pen "Fun" Pavilion www.biquge.info"

While Bai Yi was talking, Chen Yaoyang hurriedly instructed a few backbones to lift a small blackboard over, Bai Yi nodded at Chen Yaoyang tacitly, and immediately picked up the chalk, brushed a little bit on the blackboard, and wrote a large list of chemical equations.

Dichloropropanol sounds quite lofty, it is just a very basic chemical synthesis reagent, glycerin is not to mention, it is a basic material that cannot be said to be a little less powerful gunpowder, China can be produced on a large scale as early as the Beiyang government, and hydrogen chloride sounds like that, in fact, it is hydrochloric acid, which is also a very common chemical agent.

As for glacial acetic acid, to put it bluntly, it is a highly purified substance of acetic acid, China extracted acetic acid from the fermentation of natural crops more than 1,000 years ago, and has been passed down as a condiment called vinegar to this day, all in all, these three chemical agents are very common chemicals, as long as you know a little about chemistry, you know what the reaction of the three is.

Bai Yi obviously knew this, so after finishing speaking, he didn't stop, and directly wrote a row of chemical equations on the blackboard, and then turned around and clicked on the equation he just wrote with chalk and continued: "Second, the prepared dichloropropanol reacts with calcium hydroxide at room temperature to produce epichlorohydrin, which also becomes an epoxy resin monomer in industry;

Immediately followed by the third step, acetone and phenol are added to 72.5% sulfuric acid, and diphenol propane is prepared by reaction at room temperature, so as to obtain the second monomer of epoxy resin; Once the two epoxy monomers are obtained, the final step can be carried out, which is to put epichlorohydrin and diphenol propane into a condensation reaction vessel, add 10% sodium hydroxide solution, and generate the desired epoxy resin! ”

Bai Yi wrote and talked until the last chemical element symbol was put into writing, and Bai Yi's words finally came to an abrupt end, and at this time, the blackboard was already densely covered with chemical methods and various element symbols, like a whole page of heavenly books, which made people look dizzy for no reason.

At this time, the backbones were indeed very dizzy, not because of those heavenly symbols, but because of the relationship between them, if the first chemical equation he still felt that there was nothing new, then when all of them were finished, they were already stunned and couldn't say a word; Because Bai Yi's chemical reagents and reaction methods are the most common chemical methods, but these most common methods are superimposed layer by layer, and the resulting materials are dazzling new materials.

This is like the same set of punches, although the function is the same, the next generation will beat it complicated and fancy, but the power is pitiful; And the predecessors with profound skills, even if it is just the most simple punch, can kill the enemy, what is skill, this is skill.

The person present is not a master of this way? Naturally, he knew that the value of this set of chemical equations was equivalent to gold if it was abroad, so the people in the audience were shocked speechless again, and some of them were flexible, and they quickly took out their notebooks and quickly recorded every symbol on the blackboard.

As for Ma Dili, who felt guilty before, she opened her mouth in surprise, staring at the chemical equations on the blackboard with a pair of big black eyes, and after a long time, she said in disbelief: "Glycerin, hydrogen chloride, glacial acetic acid, sodium chloride, are all common things, acetone and phenol take a little effort, but it is not very difficult, and most of the reactions are carried out at room temperature, as long as the equipment allows, industrial production can be achieved immediately......"

In the end, Ma Dili's little face turned red with some excitement, knowing that if a new material is industrialized, its impact is not only limited to the material itself, but also the related chemical infrastructure, supporting research and development costs, and the potential impact of promotion and application.

It is never an exaggeration to say that it is a matter of moving the whole body, especially for China, which has a backward industrial base, it is very likely that it will bring the upgrading and improvement of the entire industrial field.

Bai Yi's next words directly pushed the emotions of almost everyone, including Ma Dili, into a crazy realm: "Comrade Ma Dili is right, it is not difficult to achieve industrial production according to this theory, in fact, we have already begun to carry out large-scale production of epoxy resin.

The first set of preparation equipment was provided by the Soviet Union, and the installation and commissioning have been completed in Zhonghai, and the batch shipped today is their trial sample, of course, it is still a little unstable, but I heard that they have begun to improve, and more importantly, the country has begun to carry out the imitation research work of the epoxy resin production line, among which the core centrifugal separator, cooler, regulating float valve and other equipment have been launched, I believe that it will not be long before epoxy resin will bloom everywhere! ”

"Really? That's great, that means our epoxy resin FRP can also be mass-produced? ”

Ma Dili clenched her excited little fists and looked at Bai Yi excitedly, whether it was in her previous life or in this life, in front of such a lovely little beauty, Bai Yi would never disappoint, so she nodded very affirmatively: "The relevant factories have begun to plan, but before that, we can still produce in large quantities, and the supporting fiberglass fabric glass factory and textile factory can be completed, as for the processing into glass, a bristle brush, a bucket of epoxy binder, the mold used in the processing plus a pair of hands is enough!" ”

"Team Leader, you mean to use manual processing?"

"Why not? Is it true that industry only has machinery and equipment, and manual work cannot be involved? We must know that our masses of the people have great strength, and if they are mobilized, not to mention the extent to which their output can be reached, but from the process of processing, how many skilled industrial workers will we cultivate?

If we combine the literacy program that the country has introduced, once this project is implemented, we will not only be able to provide continuous lightweight materials for the current recoilless artillery, but also lay an extremely solid foundation for our country's composite materials! ”

As soon as Bai Yi's words came out, Ma Dili could no longer hold back her excitement, and a pair of small hands subconsciously clapped up, followed by the second and third, and the entire warehouse was overwhelmed by applause in an instant, that is, from this moment on, China's composite materials officially developed rapidly from scratch......