Although the construction speed of the production line is relatively fast, it is impossible for Zhang Xiaofan to stay here all the time.

So a few days later, Zhang Xiaofan's figure was no longer visible here.

He had to go back and preside over the improvement of the technology.

A technology is not everything that will be done after reaching the standard, it must be continuously improved and optimized from the perspective of users.

As the market for private cars is getting bigger and bigger, more and more people are starting to make money from this aspect.

Wax on the surface of the car, all kinds of waxes, also came into being.

There are all kinds of wax powder on the market, which are naturally to make the surface hardness of the car stronger and more protective of the car topcoat.

Although various products claim how to protect the car topcoat, how to better enhance the surface hardness.

But there's no denying it.

No matter how good your product is, there is always a problem with it, the wax powder you put on later and the car topcoat are actually just fit together.

And this technology developed by Zhimei New Materials.

This is during the curing stage, the wax powder and the coating film have been chelated once, which is a chemical bond.

Its firmness is much stronger than that of post-waxing.

As long as it is not chemically corroded, similar to strong acids and alkalis, its chemical bonds will not break.

Therefore, Zhang Xiaofan dared to play the title of "never wax".

The improvement of technology is to increase the force of chemical bonds, and another is to exchange for better wax powder.

There are many varieties of wax powder for chemical products, and the applications are also diverse.

Some wax powders are used to dull the matting, some wax powders have a very high gloss, some wax powders increase the hardness very well, and some wax powders can cover the surface of the coating to increase the various properties of the coating film.

Wax powder that can be used in car topcoats.

There are a few features that must be very distinctive.

The first is high gloss, and the second is strong surface hardness.

The third point is that the weather resistance must be very good, and the fourth point is that the yellowing resistance is also very high.

Wax powder is actually divided into natural wax, semi-synthetic wax and synthetic wax.

Natural wax powder, in fact, is very common, such as our common beeswax, this small amount is edible, of course, natural wax powder is not all edible, and even if it is edible, it is only limited to a very small amount.

As for synthetic wax powders, this involves the chemical industry.

The more common one is polyethylene wax.

However, the wax powder on the market always has one defect or another, so sometimes the modification of wax powder is extremely important.

In fact, whether it is powder coating or oil-based paint, the wax powder used is derived from polyethylene wax.

This is very, very common in coatings.

Because this kind of polyethylene wax is cheap, cost-effective, and has very good scratch resistance and transparency.

But such wax powder obviously cannot meet Zhang Xiaofan's requirements.

Therefore, fluorine-modified wax has naturally entered the product series of Zhimei new materials.

The molecular weight of PTFE is often very large, from 100,000 to tens of millions.

Moreover, PTFE has the strongest anti-aging performance among all plastics, which means that the weather resistance of this kind of powdered powder is quite strong, and it is the strongest weather resistance among all wax powders.

Another point is that he hardly allows any solvents, and only occasionally a few solvents that are difficult to reach can be dissolved.

This also shows that this PTFE will be very resistant to acid and alkali.

Another point is that the most important thing is that it is one of the most important properties of hot powder.

The coefficient of friction of PTFE is very, very small, only 0.04.

What does this mean? It means that it will be very scratch resistant.

As another point, PTFE is the most non-stick of all solid materials.

The advantage of this performance is that it can make the surface coating of your car fall off easily, even if it falls into dust.

And it is also non-toxic and chemically stable.

So Zhang Xiaofan thinks that he is the best choice for wax powder in powder coatings.

But precisely because of its small coefficient of friction and very strong non-stickiness.

Therefore, the application of this hot powder to the never-waxing technology will create a series of problems.

The chemical strength is not strong enough, which makes the PTFE wax easily detached from the coating surface.

The biggest purpose of Zhang Xiaofan's return is to apply PTFE wax to this technology.

If this technology can be deepened and developed before Geely Motors supplies powder coatings.

Then it is not only for Zhimei New Materials, but also for Geely Automobile, which is also a very good thing.

This results in a higher gloss, a smaller coefficient of friction, and stronger non-stick properties.

This will make the surface of the whole car have high gloss, very strong scratch resistance, and even have the characteristics of not easy to fall dust.

This is really attractive to a car.

After nearly a month of research, Zhang Xiaofan has initially solidified this technology.

It can already be initially applied to the surface paint of the car, of course, he still has some shortcomings.

However, these can be left for later improvement.

The painting test of Jili Automobile needs to be led by Zhang Xiaofan in person.

Zhang Xiaofan also has to complete a series of experiments.

Pencil hardness, gloss, non-stick properties.

Under the guidance of Zhang Xiaofan, with the cooperation of experienced workers, the spraying of a car sheet metal was quickly completed.

Gloss and pencil hardness are easy to detect.

After the sheet metal has cooled, it can be inspected.

According to Zhang Xiaofan's meaning, this set of sheet metal is used to assemble a car, and then conduct field test experiments.

In a dusty area, there are two vehicles, one is a powder-coated car and the other is a paint-coated car.

Two cars do the same thing in this environment.

See which one has the stronger non-stick performance.

Because of this non-stick performance, Zhang Xiaofan always believes that this can be used as a selling point of the car, the stronger the non-stick performance, the less likely it is that the vehicle will be stained with dust.

In just one test, Jili Automobile cooperated very well with Zhang Xiaofan.

After the experiment is completed.

The two cars drove back, very, very obviously, with the sheet metal sprayed with the new material products of Zhimei, basically no dust can be seen, only on the hood roof and the rear of the cabin, you can see the falling dust.

On both sides of the body, it is almost dust-free.

But painted vehicles, obviously, will be a lot more dusty.

Two cars, with a water cannon with very low water pressure, to a degree similar to a rainstorm, wash the vehicles.

The effect of cleaning is also very different.

One is basically cleaner than new, and on the other one, it is obvious that there is also a light layer of dust on the hood, which makes the whole hood look very dull. You have to find the latest chapters by yourself to read books?