Compared with PTFE, the melt adhesion is enhanced, the solution viscosity is reduced, and the properties are unchanged. This resin can be directly processed into products by ordinary thermoplastic molding methods.
It is suitable for manufacturing corrosion-resistant parts, wear-resistant parts, sealing parts, insulating parts and medical instrument parts, high-temperature wire and cable insulation layers, anti-corrosion equipment, sealing materials, pump valve bushings and chemical containers.
Specific gravity: 2.13-2.167g/cm3;
Molding shrinkage: 3.1-7.7%;
Molding temperature: 350-400℃.
Extended data:
Because the molecular structure of fluoroplastics contains fluorine atoms, it has many excellent properties, such as excellent electrical insulation, high heat resistance, outstanding oil resistance, solvent resistance and wear resistance, good moisture resistance and low temperature resistance.
Therefore, fluoroplastics play an important role in national defense, electromechanical, metallurgy, petrochemical and other industrial sectors.
Molding performance:
1, crystalline substance, low hygroscopicity. It can be processed into products by conventional processing methods of thermoplastics.
2, poor fluidity, easy to decompose, and corrosive gas is generated during decomposition. The molding temperature should be strictly controlled not to exceed 475 degrees Celsius, the mold should be heated to 150-200 degrees Celsius, and the resistance of the gating system to the material flow should be small.
3, translucent granular materials, injection molding and extrusion molding. The molding temperature is 350-400 degrees Celsius, and discoloration or bubbles are easy to occur above 475 degrees Celsius. And pay attention to demoulding will be more difficult.
4. Because the melt has corrosive effect on metal, long-term production needs chromium plating.
References:
Baidu encyclopedia -PFA plastic
References:
Baidu encyclopedia-fluoroplastics