Application of plasma treatment machine in polymer materials industry

Improve the hydrophilicity of the surface of HDPE material film

Although HDPE plastic is widely used, it certainly has its shortcomings. Its own characteristics lead to poor printing, wetting and adhesive properties, and poor compatibility with other polymer materials. For example, plastic bottles and toys need to be printed on them. In order to ensure that the printed patterns and texts will not fade, it is necessary to treat them with plasma in advance.

The activation and etching of the plasma cleaning machine can modify the surface of the HDPE film very well. It can improve the hydrophilicity of the HDPE film. The plasma cleaning machine can open the C-C and C-H on the surface of the HDPE film. After the generated free radicals come into contact with nitrogen, oxygen, and water vapor, a large number of polar groups such as oxygen-containing and ammonia-containing groups will be generated on the surface of the film material. The number of polar groups has a direct impact on the hydrophilicity of the material. Therefore, after introducing a large number of polar groups, the hydrophilicity of the HDPE film has been significantly improved. It is also because of the introduction of polar groups that the mass fraction of C elements on the surface of the HDPE film decreases, and the mass fractions of 0 and N elements increase.

After the plasma cleaning machine etches the HDPE film, the relatively smooth surface can become uneven and generate gully morphology, thereby increasing the surface friction of the HDPE film, which is beneficial to improving the adhesion of the glue

Improving the hydrophilicity of PTFE

Plasma surface treatment uses oxygen and argon to generate energy. When there is enough energy to open the carbon-fluorine bond of PTFE, and when there are active groups replacing fluorine atoms, PTFE will become a polar polymer, the surface energy will be improved, and the hydrophilicity will be improved.

Dust-proof treatment of silicone products

Silicone is a heat-resistant rubber that can withstand high temperatures. Compared with other materials, silicone has biocompatibility. The products made from it are quite durable and suitable for food, medical and industrial industries. However, the surface of silicone is easy to get dusty. Manufacturers generally use chemical spraying methods to make the surface of silicone products dust-proof and smoother, but this process is not only costly, but also affects the ecological environment and harms human health.

The new technology uses plasma energy to modify the oxygen atoms on the surface of silica gel, changing the negative silica gel surface to positive. Harmless organic chemicals are used in the process, and no polluting waste is discharged, so it is a clean production process. Its low static electricity characteristics and high dust-proof effect are suitable for high-end products such as eyeglass frames, watch straps, etc. It can also be used in medical equipment and sports products to make these products perform better.