Buying materials was very smooth, although Su Yaowen's request was very strange, but there was an infant master behind him, and Lin Nan didn't dare to speak ill of him, so he had to be forced to accept it.

In addition to selling high-grade refining materials, the Hundred Treasure Pavilion will not be less low-grade materials, but the price is one to two percent more expensive than the vendors outside, and of course the quality of the materials will be better. Su Yaowen didn't really want all the materials, but just asked for some materials that were relatively large in stock and easy to obtain.

The population of the cultivation realm is about the same as the total population of the earth, but more than half of the people have been exposed to cultivation, regardless of those who do not have spiritual roots, the monks in the Qi refining period alone add up to more than 500 million.

If you want to develop the online world, the materials of mobile phones must not be too expensive, otherwise Su Yaowen will not be able to pay the production cost, and the choice of materials is also a very important thing.

Moreover, in the cultivation realm, in addition to humans, there are many intelligent beings. The demon clan formed after the demon beast turned into a human form, the spirit of flowers, trees, grass and stones, and the kraken in the depths of the sea. There are many other smaller races, but they are not too numerous, so they rarely appear before humans.

All these races are Su Yaowen's customer groups, and the combined number is definitely more than one billion, and the mobile phone has to keep launching new versions to attract everyone to consume, if the material is too expensive, how can Su Yaowen make money?

At the same time, if the entire mobile phone uses the refining and formation technology of the cultivation realm, it is difficult to guarantee that one day it will not be cracked by others, and then make a copycat machine. In order to put an end to this situation, the mobile phones in the Xiuzhen realm must also be added to the technology of the earth, and some of the materials that appear on the earth in it, if they cannot be made by themselves, they must find some cheap materials as substitutes.

In particular, the most important circuit board is made of synthetic resin. Su Yaowen plans to use plastic to make synthetic resins, which are materials that have never been seen in the Xiuzhen world. With these materials, Su Yaowen is confident that no one will crack the manufacturing method of these materials for a long time.

Su Yaowen doesn't understand the principle of manufacturing plastics and synthetic resins, but Xiaomi knows it. The computer contains some information that can be found everywhere on the earth, including the manufacturing principle of plastics, but unfortunately only a few words are mentioned. But it doesn't matter, they can try to make it themselves, and as long as they do it a few more times, Xiaomi will be able to come up with the perfect manufacturing method.

After buying everything, Su Yaowen went back, and the thought of being able to make a mobile phone made him very excited, and he couldn't wait to start work immediately.

Fortunately, Xiaomi got a lot of information on the earth, otherwise if Su Yaowen, an otaku college student, made real plastic, it would be better to call him dead.

According to Xiaomi's instructions, Su Yaowen carried out dry distillation of bile alum, which is called copper sulfate crystal in the earth, which is a kind of ore.

As a solid, bile alum is heated and decomposed at high temperatures in isolation from air to produce a corrosive liquid, that is, sulfuric acid. This kind of sulfuric acid is not very corrosive, it can only be counted as dilute sulfuric acid, which needs to be heated again, and the water inside is boiled to obtain concentrated sulfuric acid.

Su Yaowen felt as if he was taking a chemistry experiment class, and Xiaomi was his chemistry teacher, but under normal circumstances, the school would not recommend students to do this experiment, because there were many dangers.

The process of manufacturing plastic is not very complicated, but this is the cultivation realm, and Su Yaowen lacks a lot of pre-chemical materials, so many things need to be made by himself.

After obtaining concentrated sulfuric acid, Su Yaowen mixed it with alcohol in a ratio of three to one, and then quickly heated it to decompose the alcohol inside. Here, concentrated sulfuric acid is only used as a catalyst and dehydrating agent, and after the alcohol is decomposed, it can get what Su Yaowen really wants, ethylene.

Ethylene is a colorless, slightly odorous gas, which is a slight odor. Because they are gases, they are easily dispersed in the air, so Su Yaowen must always use aura to surround them and prevent them from escaping.

After that, Su Yaowen heated all the colorless ethylene at high temperature, because there was no open flame, so Su Yaowen needed to convert the aura in his body into fire attribute aura and directly heat the ethylene. In addition to this, this range of ethylene is compressed using Reiki, which is an operation that simulates a polymerization reaction.

Su Yaowen is not an authentic chemistry student, and his previous chemistry grades are also average, and even Xiaomi only knows a little about it, so they can only carry out this specious chemical reaction operation according to their own understanding.

I don't know if it's good luck or being blind, under the high-temperature treatment of the fire attribute aura and the compression of the aura aura, the ethylene gas finally underwent a chemical reaction, and the molecular structure inside was ruptured, and it slowly condensed into some odorless solids under the scope of the aura shroud, which looked very much like wax.

The finished product came out, and these are polyethylene, that is, thermoplastic resins, which belong to a type of artificial resin. For the average person, calling it plastic may be more familiar.

"It's done!" Su Yaowen breathed a sigh of relief, it took two hours and dozens of experiments to finally get the finished product.

"Well, it's really not easy, but fortunately I didn't make a mistake in the direction. "The happiest is Xiaomi, since the plastics have been studied, will the birth of mobile phones be long?

"The polyethylene has come out, what will I do after that?" Su Yaowen hurriedly asked, the success just now aroused his interest, "Is it to be smelted into a circuit board immediately?"

"Don't worry, the amount of polyethylene is too small, not even half the volume of the circuit board, and more needs to be manufactured. After I put together the information about the whole process, I wrote a complete program, and then I handed it over to the bamboo puppet to help us produce more polyethylene. Xiaomi has already started to write a program, "Brother, I need you to go to the library a few more times these days, and I need more information for the study of the formation." ”

"That's good, I've almost finished reading the low-level library area of the last Qi Refining Period, tomorrow I will go directly to the intermediate library area, and then go to the high-level library area, and strive to record all the formation knowledge in the Qi Refining Period within half a month." Su Yaowen also knew that if he wanted to integrate the knowledge of the two worlds and make a new mobile phone, the knowledge of the formation was indispensable.

Since there was no need to continue producing polyethylene for the time being, Su Yaowen turned his attention to the newly purchased high-grade talisman materials.

A few days earlier, he had already learned the knowledge of refining intermediate spirit runes, but because he had not successfully refined, Xiaomi could not write the corresponding program, so he had to take the time to successfully refine all these intermediate spirit runes, and then hand them over to the bamboo puppet for production.

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