What is atmospheric plasma?
Atmospheric Pressure Plasma|Plasma Introduction

Taiwan Puritic Corp. has been continuously improving and making efforts in green process technology, which has led to the commercial application of atmospheric pressure plasma surface treatment technology, adhering to the expectations of improving efficiency, establishing a friendly working environment, and achieving energy saving and carbon reduction in order to fulfill its corporate social responsibility. The introduction of atmospheric plasma surface treatment technology has brought revolutionary technological development in the field of surface modification, which not only can effectively improve the surface activity of materials, but also can significantly reduce the use of chemical agents in the process, which has positive effects on process optimization, cost control, production efficiency and environmental protection, and belongs to one of the surface treatment technologies with high potential for development in the future.

In daily life, the three states of water are the most widely known, namely, solid ice, liquid water and gaseous vapor. With the continuous supply of energy, the distance between molecules increases and causes the substance to undergo a phase change and have different characteristics. When energy (such as temperature or voltage) is continuously applied to a gaseous substance, the atoms in the substance will dissociate due to the increase in energy, forming electrons, positive ions, negative ions, atom groups, molecular groups...etc. The total electrical properties of these aggregates are electrically neutral and are generally referred to as plasma.

Since atmospheric pressure plasma is the fourth state of high energy density, under the appropriate treatment conditions, the surface of the material treated by the plasma beam will show a highly active state due to the energy transfer and reception, which is excellent for the bonding effect of the subsequent processes involving bonding. A simple test can be carried out by spraying a water mist on the surface of the material and comparing it before and after the plasma treatment. The example in the figure shows an atmospheric pressure plasma surface treatment of glass in a specific route. The treated glass path is highly hydrophilic, so that the water mist adsorbs completely onto the glass surface and forms visible water marks.

As the industry's understanding of material properties and manufacturing technologies are becoming more and more mature, the research and development and application of composite materials have become a popular development project nowadays. However, in many manufacturing fields, the problems that often occur in composite materials are material joints peeling, poor adhesion, low reliability, etc. The reason is that different materials have different physical properties, and when there is insufficient bonding between them, the heterogeneous joint interfaces will be fatigued and chipped. Normal pressure plasma surface treatment technology has excellent effect in material surface activation, and can improve heterogeneous bonding problems in an environmentally friendly, safe, and highly efficient way, so the application scope covers almost all areas of the manufacturing industry.