The Richest Man Yang Fei

Yang Fei is not a celebrity, even if he is a celebrity, there are some people who don't know him! Li An is so famous, is it because some people don't recognize him?

The boy said: "I don't recommend using high-foaming formula, I'll talk to my instructor!"

Zhu Lin said: "With Yang Fei here, it doesn't matter who you call, even if the mentor comes, you have to listen to Yang Fei!"

The boy really doesn't know Yang Fei. After all, the school is so big, with so many students, and Yang Fei has few opportunities to show his face. He looked at Yang Fei again, smiled, and said, "How could it be possible for him to have the final say? In the matter of low foaming In fact, I will stick to it to the end! This is the direction of the development of science and technology, and it is also the truth I believe!"

Yang Fei said: "As I said just now, there is no right or wrong in this matter. There are surfactants in shampoo, shower gel, and hand sanitizer, such as sodium lauryl sulfate, which can play a cleaning role."

Next, he roughly talked about the principle of shampoo decontamination.

Surfactants have hydrophilic and lipophilic ends, and the lipophilic part is generally a non-polar group such as a long-chain alkyl group, which has a strong interaction with organic matter and a small interaction with water; the hydrophilic part is generally a sulfonic acid group Equal polar groups, strong interaction with water and small interaction with organic matter. When interacting with oil stains, the lipophilic groups are inserted into the oil stains, while the hydrophilic groups are outward, so the surfactant wraps the oil stains into a ball.

The structure in which the lipophilic group is inward and the hydrophilic group is outward formed by the surfactant is called a micelle, and the process in which the surfactant interacts with water-insoluble oil substances to increase the solubility of the insoluble substance is called micelles. Micellar solubilization. Washing off the oil on the hair is the surfactant used for solubilization.

Another major function of the surfactant is to reduce the surface tension of water, so that the surface tension that needs to be overcome when the oil is dispersed into oil droplets is reduced, and the interfacial energy of the small oil droplets on the oil-water interface is also lower, and the emulsion is therefore After being stabilized, the oil stain can be easily washed away with water after forming a relatively stable emulsion in water.

Before we wash our hair, we will beat the shampoo evenly in the palm of our hand. This is actually a stirring process. During this process, the solution containing the surfactant is in full contact with the air.

If the hair does not have any oily stains for the lipophilic groups to act, then the lipophilic groups will stay away from the water and form air bubbles, which is the reason for the rich foam.

The less oily dirt, the more surfactants will participate in the formation of bubbles, and the more foam will be formed; the more oily dirt, the less surfactants will be involved in the formation of bubbles, and the less foams will be formed. This also explains why we all feel that the hair lathers more when the hair is clean and less lather when it is dirty.

It can be seen that foaming is actually just a by-product of the washing process, which is not an indicator of whether the shampoo is good or bad.

Seeing Yang Fei talking eloquently and logically, the boy couldn't help but look at him with admiration and asked, "How old are you, classmate? You have solid professional knowledge."

Zhu Lin laughed and said: "You may not believe it, but Yang Fei is just a freshman and he is our junior. Moreover, he often asks for leave and skips classes. The most annoying thing is that he hasn't failed in his homework, and his grades are still so good .”

Yang Fei smiled indifferently: "Everything in the world is knowledgeable, and society is a school everywhere."

The boy suddenly said: "I remembered, you are the president of the school's entrepreneurial club, right?"

Yang Fei said: "Yes."

The boy said: "President Yang is often mentioned by others, but I have never met you. The project we are researching now is the product of your clean white company!"

Yang Feidao: "Shampoos have various effects. Everyone's hair is different, and there are great differences between regions and individuals. Therefore, we should develop several different types of shampoos to meet the needs of different groups of people. "

Zhu Lin said: "President Yang, when we girls usually buy shampoo, we only choose the one with rich foam. We always think that the shampoo with more foam is better. Even though this is not a rigid indicator, it is also a psychological hint, which will affect consumers' perceptions. choose."

The boy said: "You girls are hypocritical! Knowing that this is a psychological hint, you will still be fooled!"

Yang Fei smiled and said: "The shampoo with rich foam contains ingredients such as sodium laureth-3 acetate and chlorhexidine acetate, but the decontamination and cleaning power is slightly poor, because it is weakly acidic. , is less irritating to the scalp, can interact with the electric charge on the hair, and keeps the hair smooth and smooth without frizz, so it is suitable for frizzy hair. We call it the acetic acid system. Therefore, this shampoo, the foam must be A lot. Other models have considerably less foam.”

The boy was taken aback and asked, "President Yang knows this business well?"

Yang Fei laughed and said, "If you have to rely on this line of work, what can you do if you don't know how to do it?"

In addition to the acetic acid series, Clean White has also developed an amino acid series, which is suitable for dry hair. The most important ingredients in the formula are sodium lauroyl glutamate, sodium lauroyl ether sulfate, etc.

There is also a betaine series suitable for sensitive skin, which uses sodium cocoyl glutamate, cocamidopropyl betaine and other ingredients to achieve better moisturizing effect and is suitable for people with sensitive skin.

There is also a group of people whose hair has been damaged, so they need to use the protein series. The formula contains hydrolyzed collagen, milk and other substances, which are suitable for the repair of damaged hair.

As for the daily care of ordinary people, most of them use glucoside.

There are often words of glucoside in the formula table, such as dodecyl glucoside, etc.

The main component of this shampoo is extracted from glucose, which has slightly weaker detergency, but less irritation, high safety, and rich foam. It is usually mixed with amino acids to enhance the decontamination effect without reducing safety.

Common shampoos on the market, in addition to these five systems, there are two series, sulfuric acid series and stone alkali series.

These two series of shampoos are generally relatively cheap.

The former uses sodium lauryl ether sulfate and sodium lauryl sulfate, while the latter uses fatty acid sodium salt and sodium hydroxide. Although the detergency is strong, it will destroy the beneficial oils of the human body, and make people's hair more difficult to wash. The more dry, the inferior chemical compounds, the more you use them, the more hair will become like dead grass.

All in all, whether the foam is rich or not depends on the type of shampoo and cannot be generalized.

After hearing this, Zhu Lin and the boy nodded in agreement, admiring Yang Fei.

Yang Fei talked with the students in the research group for more than an hour. His profound knowledge, as well as his grasp of society, the market, and people's hearts, quickly conquered the hearts of this group of academic masters.

"What we want to develop is the five series of products mentioned earlier, which can basically cover most people's hair quality." Yang Fei said, "Shampoo is different from washing powder, it directly acts on the skin of the human body, and It’s the most important part of the head, and it’s about the image that everyone cares about the most. This is a top effort! Please, everyone, do your best to complete the formula list!”

At this moment, Luo Hongcai walked in suddenly, and said with a smile, "Hi everyone, I'm back!"

As soon as he saw Yang Fei present, the smile on his face froze.

Yang Fei said unceremoniously: "Senior Brother Luo, this is the research group for clean white products, and you are the research and development assistant of Procter \u0026 Gamble, so it is inappropriate for you to come here!"

Luo Hongcai was very thick-skinned, chuckled, and walked in without a care.