FEP Resin Insulation Application
FEP Resin Insulation Application DS618
1:MFR 16-20/20-24/24-28/12-16 g/10min
In the application of wire insulation, the performance of FEP material is more excellent. FEP material has higher density, higher impact strength, higher temperature resistance, better weathering resistance, wider temperature range, better thermal aging resistance and lower dielectric constant. It is more suitable for wire insulation than PE. And the flame retardancy of FEP material is better than that of PE. Compared with PE, the deficiency is the failure stress and low tensile strength of FEP resin, and the melt viscosity of FEP is much larger than that of PE, so FEP is affected by many factors during high speed extrusion. Higher requirements for processes and equipment.
Perfluorinated ethylene-propylene copolymer for high-speed extrusion (DS618)
Fluoropolymer DS618 are high molecular weight resins of low melt index,with low extrusion temperature,high extrusion speed which is 5-8tims of ordinary FEP resin. It is soft,anti-burst and has good toughness.
Quality Specification of FEP Resin Insulation Application DS618
Translucent particles,without impurities such as metal debris and sand,containing visible black particles percentage point less than 2%
Elongation at break ≥
Heat stress Cracking Resistance
Main Applications of FEP Resin Insulation Application DS618
[FEP Resin Information Package]
The chemical stability of F-46 resin is similar to that of polytetrafluoroethylene. Except for the reaction with fluorine at high temperature, molten alkali metal and chlorine trifluoride, it is not corroded when in contact with other chemicals.
The relative density of PTFE varies slightly with the change of molecular weight, and is generally between 2.14 and 2.17. The outstanding characteristics are high impact toughness, even with notched pattern, at room temperature, the mechanical properties of .FEP change with temperature as follows: (tensile strength, bending strength, Impact strength and elongation at break decrease with increasing temperature)
Injection molding, extrusion, compression molding, coating and other molding methods are used to process 1 injection molding: usually screw injection molding machine is used. The injection molding process conditions are as follows: the temperature of the barrel is controlled at 315 ℃, the temperature of the nozzle is controlled at 370 ℃, the temperature of the nozzle is controlled at about 370 ℃. The mold temperature is controlled at 205 ℃ and the injection pressure is controlled at 35 ~ 140 MPA. The injection cycle is determined according to the thickness and thickness of the product.