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Why is plasma surface treatment developing so fast

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22 Sep,2020

Why is plasma surface treatment developing so fast:

With the rapid development of high-tech industry, various processes have higher and higher technical requirements for products. The emergence of plasma surface treatment technology has not only improved product performance and production efficiency, but also achieved safety and environmental protection effect. Plasma surface treatment technology can be applied in the fields of materials science, polymer science, biomedical materials science, microfluidics research, microelectromechanical system research, optics, microscopy and dentistry. It is this extensive application field and huge development space that make the plasma surface treatment technology develop rapidly in foreign developed countries. According to the survey data, the total output value of the plasma surface treatment equipment in the world reached more than 300 billion yuan in 2008. However, we have to wonder why plasma surface treatment technology has developed so rapidly in just 20 years.

(1) Principle and application of plasma surface treatment technology:

Plasma, or the fourth state of matter, is an ionized gas composed of atoms that have been stripped of some of their electrons and the positive and negative electrons created by ionized atoms. This ionized gas is made up of atoms, molecules, atomic groups, ions, and electrons. Its action on the surface of the object can realize the object super-clean cleaning, object surface activation, etching, finishing and plasma surface coating. According to the difference of particles in the plasma, the specific principle of object processing is different, and the different input gas and control power realize the diversification of object processing. Because the strength of low-temperature plasma on the surface of the object is less than that of high-temperature plasma, it can achieve the protection effect on the surface of the treated object. In applications, we mostly use low-temperature plasma. And different kinds of particles behave differently in the way they treat an object. Radicals.

It is mainly to realize the "activation" effect of energy transfer in the process of chemical reaction on the surface of objects. The effect of electrons on the surface of an object mainly includes two aspects:

On the one hand is the impact on the surface of the object, on the other hand is caused by a large number of electron impact chemical reaction; The surface of the object is treated by ion sputtering. Ultraviolet light breaks down molecular bonds on the surface of an object and enhances penetration.

(2) The advantages of plasma surface treatment technology are dry treatment technology, which has the following advantages instead of traditional wet treatment technology:

1. Environmental protection technology: The plasma action process is a gas-solid coherent reaction, which does not consume water resources and does not need to add chemical agents

2. High efficiency: The whole process can be completed in a relatively short time

3. Low cost: the device is simple, easy to operate and maintain, a small amount of gas instead of expensive cleaning liquid, and there is no waste liquid treatment cost

4. More refined processing: able to penetrate into the interior of fine holes and depressions and complete cleaning tasks

5. Wide applicability: Plasma surface treatment technology is capable of treating most solid substances, so it has a wide range of applications.

(3) the prospect of plasma surface treatment technology:

With the development of electronic information industry, especially in communications products, computers and parts, semiconductor, LCD and optoelectronic products of ultra-precision industrial cleaning equipment and high value-added equipment requirements gradually increase, the proportion of the plasma surface treatment equipment has become the basis of a lot of electronic information industry. And along with the industry technical requirement unceasing enhancement, the plasma cleaning technology will have the broader development space in the domestic. With the rapid development of the automobile industry, many foreign manufacturers have targeted to the Chinese market, and many spare parts manufacturers have also moved to China, which have put forward new technical requirements for cleaning. It can be said that plasma cleaning technology is more suitable for the development of the automobile industry. The treatment process before the use of medical devices is very fine, cleaning with freon is not only a waste of resources but also very expensive. The use of plasma surface treatment technology avoids the disadvantages of using chemical substances, and it is more suitable for the technical requirements of modern medical technology. The cleaning technology of optical devices and some optical products is very high, and the plasma surface treatment technology can be more widely used in this field. Plasma surface treatment technology can be used in a wide range of industries. The treatment of objects is not only cleaning, but also etching, ashing, surface activation and coating. Therefore, plasma surface treatment technology will have extensive development potential. It will also become a treatment process more and more highly recommended by scientific research institutes, medical institutions and production and processing enterprises.

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