GD-5 plasma cleaner is with 5 L plasma chamber and 40 kHz IF power supply. The chamber is Φ150*280（D）mm with a tray 230(L)*120(W) mm. GD-5 plasma cleaner is laptop and can be all-round treatment the irregular products with different size. It is widely apply for R&D in university , research museum and small industry production.
Polypropylene (PP) is a semi-crystalline thermoplastic. It has high impact resistance, strong and tough mechanical properties, and is resistant to various organic solvents and acid and alkali corrosion. There are a wide range of applications in industry including packaging materials and labels, textiles (eg. rope, thermal underwear and carpets), stationery, plastic parts and reusable containers of various types, thermoplastic polymer equipment used in laboratories, speakers, auto parts, and polymer banknotes are all common polymer materials. (The above introduction comes from Wikipedia).
Due to this characteristic, PP materials are more difficult to treat. When bonding with other materials and dispensing, the glue is difficult to adhere, the bonding is not strong, and the phenomenon of glue opening often occurs.
When plasma cleaning, the inert gas is connected, and when the gas enters the cavity, a chemical reaction occurs with the surface of the PP material, so that the surface of the product is modified, the surface tension is increased, and the bondability is enhanced. In addition, the high-speed impact of the surface of the refractory material in the plasma, the molecular chain is broken and cross-linked, which increases the relative molecular mass of the surface molecules, improves the condition of the weak boundary layer, and plays a positive role in the improvement of the surface adhesion performance.
The surface activity of the material treated by low temperature plasma is significantly improved, which promotes the improvement of surface adhesion and has greater peel strength.
There are several advantages when using vacuum plasam cleaner of PP. Firstly, the modification only occurs in the surface layer of the material without affecting the inherent properties of the PP material, and the treatment uniformity is good. Then, the processing time is short, the temperature is low, and the efficiency is high, enabling continuous mass production. Plasma cleaners have no strict requirements on the materials to be processed, and are universally applicable to all products.
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