Modular Screw Special For PTFE Twin Screw Extruder

Kalshine a expert which manufactures high torque and high-precision Modular Screw Special for PTFE Twin Screw Extruder, according to the physical characteristics of PTFE, kalshine customized processing the screw, is used for the PTFE filling, blending, pelletizing.

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Kalshine a expert which manufactures high torque and high-precision Modular Screw Special for PTFE Twin Screw Extruder, according to the physical characteristics of PTFE, kalshine customized processing the screw, is used for the PTFE filling, blending, pelletizing.

 

About PTFE

Polytetrafluoroethylene (PTFE) is generally referred to as "non stick coating" or "easy to clean material". This kind of material has the characteristics of acid and alkali resistance, resistance to various organic solvents, and almost insoluble in all solvents. At the same time, polytetrafluoroethylene has the characteristics of high temperature resistance, its friction coefficient is very low, so it can be used for lubrication, but also become an ideal coating for easy cleaning of the inner layer of water pipes.

 

PTFE material properties:

1. Long term use temperature - 200-260 ℃, excellent chemical resistance, corrosion resistance for all chemicals, the lowest friction coefficient in plastic, and good electrical performance, its electrical insulation is not affected by temperature, known as "plastic king".

2. It is transparent or translucent. The higher the crystallinity, the worse the transparency. Most of the raw materials are powder resins or concentrated dispersions with high molecular weight, which are thermoplastic polymers with high crystallinity.

 

Pelletizing of PTFE

PTFE filling granulation, using a special fluoroplastic twin-screw extruder, similar to the sintering process. PTFE powder with filler has high apparent density, small average particle size and good powder fluidity

Polytetrafluoroethylene (PTFE) is modified by engineering plastics as anti-dropping agent and wear-resistant lubricant. High viscosity of polytetrafluoroethylene melt should be considered in the process.

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