"Who said that? Can you explain that to us a little bit?"

"I ......"

Zhang Xiaofan glanced at it - and didn't know it - so this person should be new to the company - it won't take more than four months.

Now how strong is the technical strength of Zhimei new materials, just look at this research lineup, you can know that there are more than 150 doctoral and master's students, and there are nearly 100 undergraduate teams, including returnees, 211 engineering universities, and of course, ordinary universities.

Which university they go to, in fact, Zhimei New Materials is only one aspect of the preliminary screening, but this is not the most important thing, and now a written test and interview are required to enter Zhimei New Materials.

Needless to say, the written test must be basic knowledge, which is to see what kind of depth your mastery of chemical knowledge has reached, and whether you have a unique understanding of the essence of coating products.

The interview is very simple, do an experiment, give a molecular formula, and then you use monomers or some common chemicals to synthesize, in fact, whether it is a written test or an interview, it is to test the basic knowledge of the interviewer.

Only when the basic knowledge is solid, can we do whatever you want on this basis.

Before entering the company, Xiaofan did not think that their coating knowledge could impress themselves, what we learned in college is not very professional, what we learned in college is actually a relatively basic knowledge, and then to graduate students to doctoral students will slowly go to a more professional aspect, more refined.

However, Zhang Xiaofan still only examines people with a more solid basic knowledge foundation, and their innovation ability, after being guided, is better than those with poor basic knowledge.

The main thing is that people with solid basic knowledge are productive.

"Tell me about it. ”

"I think that now our products are only in a preliminary stage, I know that Mr. Zhang has been emphasizing environmental protection, adding organic solvents will definitely be lacking in environmental protection, but we can control the proportion of this addition, not more than 5%.

In this way, a small part of the powder coating can be integrated into the aqueous solution, thereby increasing the viscosity of the whole solution, so that it is not easy to sag.

Later, we found other more environmentally friendly thickeners, or our powder coatings developed more advanced ones that can be partially soluble in water, and we can also increase the viscosity of the aqueous solution to avoid the phenomenon of flowing through. ”

Zhang Xiaofan was silent, he felt that he had always fallen into a dead end, always loved to drill the horns, always thought about environmental protection, but environmental protection also needs to be slowly progressed step by step, and it is impossible to achieve it overnight, just like the whole world is facing paint now, it is also the first to develop water-based coatings, and slowly replace some paints.

95% water, 5% organic solution, this ratio is much better than paint, environmentally friendly.

"Your idea is very good, I think it can be adopted, then it is up to you to try which proportion of aqueous solution can be more balanced in terms of environmental protection, viscosity, and sagging. ”

"Good ......"

This technician looked a little excited, but Xiao Ming didn't know his name, and he didn't have the heart to ask his name now, but he remembered his appearance.

"Everyone, please list the ratio of water to organic solvents, and then determine the ratio of this mixed solution to powder coating.

The ratio of water to solvent is between 3% and 5%, and then increments of every 0.1%.

Powder coatings are added in different proportions of water and solvents, and then the viscosity is tested to determine the most reasonable viscosity range. ”

This experiment is a large-scale multi-person experiment, which must require a lot of technicians to be very patient to experiment one by one according to each ratio, then determine the viscosity, and finally spray it with equipment to see what the sag coefficient is.

Professor Qin and they naturally won't continue to wait here, this experiment is not something that can be solved in an hour or two hours, but Zhang Xiaofan estimates that it will take at least half a day, so during this time, the laboratory will be handed over to the technician.

But before Zhang Xiaofan left, he told these techniques that this experiment must be completed today, that is, it must be completed after working overtime until late at night.

Professor Qin has not much time left for Zhang Xiaofan, and the equipment definitely needs to be improved, but the improvement of this equipment must be after the viscosity of the powder coating solution.

The laboratory was in full swing, and in the corridor not far away, Zhang Xiaofan put his hands on the guardrail of the aisle, holding a cigarette in his mouth, but he didn't do anything else, just let the cigarette fend for itself.

The whole person looked a little decadent, and his eyes were blankly looking at the flickering lights in the distance.

I don't know why I am so persistent, why am I so obsessed with environmental protection?

Probably an obsession as a powder coating person.

In reality, many paints can make effects, but powder coatings are difficult to achieve.

There are many powder coating companies in China, and the technicians of these companies often encounter a situation, that is, the customer usually gets a sample, and some even go to the company in person, but this sample is sprayed with paint.

Of course, this model must be more special, many powder coating technicians, when they see this model at a glance, they want to shake their heads very much, and even some shake their heads directly, such products can not be made, how to come out is difficult to achieve.

But the vast majority of customers are indomitable, of course, these customers they have their own difficulties, the customer's customer will give them this sample, must be to make the corresponding product.

Opening a company must be to make money, so the customers of these powder coating companies will definitely force the technical staff of the coating company to make this product, as for how you do it, to what extent, anyway, as long as it is within the acceptance range of his customers.

This is actually a very big false proposition, a person's criteria for judging are actually constantly changing, maybe today he thinks he can, tomorrow he may regret it.

This kind of thing is too common, many powder coating companies make samples, but the customer gets it in his hands, and then nods, this should be fine, but the next day he will call, can you go further with this product?

Limited by the advanced degree of raw materials, in fact, many products have basically achieved the extreme, or even surpassed the extreme, of course, there must be some very coincidental elements in these, so they will surpass the extreme.

But this kind of fortuitous coincidence may not be able to be represented.

Therefore, the two sides will naturally have some small contradictions, and the contradictions may deepen after one or two times, and even the cooperation between the two sides will end after seven or eight times. You have to find the latest chapters by yourself to read books?