How To Improve The Surface Wettability Of PTFE Board?

2020-03-06 09:03:51

PTFE Board is a kind of polymer material with excellent comprehensive performance. Because of its excellent high temperature resistance, low temperature resistance, chemical resistance, dielectric properties and electrical insulation properties, it is widely used in petrochemical, pharmaceutical, aerospace, Sealing materials and other fields.

Although PTFE Board has many advantages, its surface energy is very low (critical surface tension is 1.8 mN / m), and its surface is highly hydrophobic (contact angle with water is greater than 100 degrees). This extremely low surface activity and non-viscosity have seriously affected the application of PTFE in adhesion, printing and dyeing, biocompatibility, etc., and especially limited the compounding of PTFE films and other materials.

In order to improve the surface wettability of polytetrafluoroethylene board and combine and compound it with other materials, it is necessary to modify the surface hydrophilicity of polytetrafluoroethylene. Compared with common chemical etchant treatment , Plasma process has the advantages of low processing temperature, short processing time, energy saving, short process flow, environmental protection, good controllability and so on. All kinds of polytetrafluoroethylene products have played a pivotal role in the national economic fields such as chemical industry, machinery, electronics, electrical appliances, military industry, aerospace, environmental protection and bridges.

Teflon sheet is suitable for temperatures of -180 ℃ ~ + 250 ℃. It is mainly used as linings for electrical insulation materials and contact with corrosive media, supporting sliders, rail seals and lubricating materials. It is widely used in light industry Anticorrosive lining materials for containers, storage tanks, reaction tower kettles, large pipelines in chemical, pharmaceutical, dye industry; heavy industry fields such as aviation, military; machinery, construction, transportation bridge sliders, guide rails; Sticky materials.