Chemical cleaning is nothing more than the use of three substances: solvent, strong alkali and surfactant to achieve decontamination. Solvents used for chemical cleaning generally have a certain degree of toxicity and will cause secondary pollution. Strong alkali will cause corrosion to the cleaning materials.
It can also harm the user's skin. Surfactants do not have these defects, but their decontamination ability is not as good as solvents and strong alkali.
In order to obtain the optimal decontamination effect and reduce secondary pollution, these three substances need to be properly combined, thus forming different cleaning agent formulas.
Surfactants themselves are also a very large family, and common compounds include sodium alkyl benzene sulfonate, sodium fatty alcohol polyoxyethylene ether sulfate, fatty alcohol amides, lauric acid diethanolamide, etc.
Developing chemical cleaning agents basically involves doing two things. One is to explore new compounds, especially new surfactants, and the other is to explore new formulas, that is, changing the proportions of various substances in the cleaning agent.
Compare various aspects such as detergency, corrosiveness, and stability to select the optimal ratio.
Gao Fan naturally knew the ingredients of some new surfactants, but under his current conditions, he was unable to establish a synthetic process to produce those new surfactants. Therefore, the chemical cleaning agent he developed was mainly based on existing ingredients.
Adjust the recipe accordingly.
Cleaning agent manufacturers around the world are doing the same job, but because of limitations in thinking, no one can come up with a better formula than Gaofan, so the cleaning agent he launched was an instant success in the Japanese market.
In his previous life, Gao Fan claimed to have a humanoid self-propelled database, but biological media storage of information was always not as accurate as physical media storage. Regarding the formula of the cleaning agent, he only remembered some key links, but there were some mistakes in the details.
He sent the formula of the cleaning agent to Yang Kai, with the intention of asking Yang Kai to help check whether it was similar to foreign products. After Yang Kai searched the information and confirmed that Gaofan's formula was original, he began to think about this formula.
of mystery.
The decontamination principles of various surfactants are common sense to those who study chemistry. However, what kind of effects different surfactants will have when combined together is more complicated. Just imagination is not enough.
It still needs to be verified through experiments.
Inspired by Gao Fan, Yang Kai positioned his future research direction in computational chemistry, so he started to consider problems from this perspective. He made some calculation programs to analyze the interaction mechanisms of various surfactants, and it happened that this
At that time, the computer that Gao Fan asked Kitajima Masanobu to buy was sent to Peking University, so Yang Kai used this topic as a training tool for his own computer learning. As a result, he really discovered the shortcomings in the formula provided by Gao Fan.
"You see, this is an equation of the interaction parameters of multi-component molecules in the surfactant adsorption layer and micelles. By adjusting the proportions of different components, different βs and βm values can be obtained.
"I used different ratios to calculate and get the interfacial tension curves of different formulas. It can be seen from the curve that the formula you are currently using is not the optimal one. If you reduce the ratio of nonionic active agents to anionic active agents, you can
Get better stain removal results.”
Yang Kai took out a few pictures, pointed at the curves above and introduced them to Gao Fan.
"You traced these points?" Gao Fan looked at the curve graph with some emotion.
In later generations, such calculations can be generated in just a few minutes by simply throwing this calculation into MATLAB, but what Yang Kai showed him was a completely hand-drawn graph.
Gao Fan could imagine that the points above were all drawn by Yang Kai using a computer to calculate the coordinates, and then using a triangle plate to measure and draw them one by one on the coordinate system. There were so many points, but Yang Kai had the patience to do it.
painting.
"It took a lot of time to calculate these results, right?" Gao Fan asked.
Yang Kai nodded: "It takes at least half an hour to calculate an equation. Sometimes I turn on the alarm clock, and the computer is over there to calculate. I go to sleep first, and then get up half an hour later to see the results."
"Senior brother, thank you for your hard work." Gao Fan said.
Yang Kai smiled and said: "It's hard work, this is something I enjoy. In fact, I already made some judgments before calculating. Seeing that the calculation results are consistent with my judgments, it feels indescribable."
"I will send these new formulas back immediately and let the factory do experiments to verify them," Gao Fan said.
After that, he added with a smile: "If these formulas are indeed better than the original formulas, we will treat them as enhanced models and sell them at a 20% increase in price. We will share half of the extra profit with you."
"Only half?" Yang Kai subconsciously retorted, but after saying that, he felt something was wrong, and quickly waved his hands and said, "No, no, I was just talking nonsense.
"Good guys, I just remembered that this is a big deal for one million yuan per order. If you increase the price by 20% and give me half, wouldn't it be worth 100,000 yuan?"
"Is there that much?" Gao Fan was also stunned. After thinking about it for a while, he realized that it was only 100,000. He seemed to be a little too generous.
Of course, there is a cost to produce cleaning agents. Equipment, raw materials, and bottles containing cleaning agents all cost money. The order just sent by Kitajima Masanobu has a total of 100,000 bottles. Canghua Technology Trade Co., Ltd.
The price is RMB 10 per bottle, the cost is almost RMB 5, and the profit is half.
But if you follow what Gao Fan just said, treat the new formula as an enhanced version and increase the price by 20%, this 20% is the pure profit, because the new formula does not require more raw materials than the old formula, and the investment in equipment and manpower is the same.
Calculated in this way, 100,000 bottles can earn an additional 200,000 yuan. If Yang Kai is given half of it, it will be 100,000 yuan.
Yang Kai didn't calculate the amount at first, just jokingly saying that half was too little. When he realized it, he realized that the so-called half was actually 100,000 yuan. How dare he ask for it.
"Otherwise, let's give it 5%. I'll give you 10,000 out of 200,000 miles." Gao Fan immediately reduced the share ratio to 1/10.
"This is absolutely not possible." Yang Kai said, "I was joking just now, but you must not take it seriously."
"But I am serious, please don't take it as a joke." Gao Fan said.
Yang Kai said seriously: "How can this be done? I calculated this formula just out of interest, and I can help you optimize the product by the way. This kind of thing is just a little effort, how can I get paid?"
"Free things are the most expensive." Gao Fan said, "If you didn't mention it, I haven't thought of it. Next, I will ask the Department of Chemical Engineering to help us develop new products and new processes, and set the cost standards in advance. It's very
necessary.
"What you think is easy can be done by our company, and you can make a lot of money. If the mechanism of industry-university-research cooperation cannot be clarified, there will definitely be disputes in the future."