PVDF polyvinylidene fluoride, appearance is translucent or white powder or granule, molecular chain arrangement between closely, and have strong hydrogen bond, oxygen index was 46%, don't burn, the degree of crystallinity 65% ~ 78%, the density of 1.17 ~ 1.79 g/cm3, melting point is 172 ℃, thermal deformation temperature 112 ~ 145 ℃, use for a long time temperature for - 40 ~ 150 ℃. PVDF application mainly concentrated in the petroleum chemical industry, electronic electrical and fluorine carbon coating three fields, because of PVDF good chemical resistance, processability and fatigue and creep, is the petrochemical equipment fluid handling system or lined pumps, valves, piping, pipe fittings, storage tank and heat exchanger of one of the best materials. PVDF good chemical stability, electrical insulation performance, production equipment can meet the TOCS and flame retardant requirement, are widely used in semiconductor industry high purity chemical storage and transport, in recent years the PVDF resin made porous membrane, gel, diaphragm, etc, in the application of lithium secondary battery, at present this USES PVDF demand growth as the fastest one of the market. PVDF fluorocarbon coatings is one of the most main raw materials, with its as raw material preparation of fluorocarbon coatings have been developed to sixth generation, because of PVDF resin with super weathering, can be in outdoor use for a long time, no maintenance, this kind of coating is widely used in power stations, airports, highways, high-rise building etc. In addition PVDF resin can also and other resin blend modification, such as PVDF and ABS resin blend get composite material, has been widely used in construction, car decoration, home appliance shell, etc.
1, PVDF has excellent resistance to chemical corrosion, good resistance to high temperature color degeneration and oxidation resistance.
2, PVDF has excellent wear resistance, flexibility, high resistance to flood strength and resistance to impact strength.
3, PVDF has excellent resistance to ultraviolet radiation and high energy radiation.
4, PVDF wetting ability is poor.
PVDF application mainly concentrated in the petroleum chemical industry, electronic electrical and fluorine carbon coating three fields, because of PVDF good chemical resistance, processability and fatigue and creep, is the petrochemical equipment fluid handling system or lined pumps, valves, piping, pipe fittings, storage tank and heat exchanger of one of the best materials. PVDF good chemical stability, electrical insulation performance, production equipment can meet the TOCS and flame retardant requirement, are widely used in semiconductor industry high purity chemical storage and transport, in recent years the PVDF resin made porous membrane, gel, diaphragm, etc, in the application of lithium secondary battery, at present this USES PVDF demand growth as the fastest one of the market. PVDF fluorocarbon coatings is one of the most main raw materials, with its as raw material preparation of fluorocarbon coatings have been developed to sixth generation, because of PVDF resin with super weathering, can be in outdoor use for a long time, no maintenance, this kind of coating is widely used in power stations, airports, highways, high-rise building etc. In addition PVDF resin can also and other resin blend modification, such as PVDF and ABS resin blend get composite material, has been widely used in construction, car decoration, home appliance shell, etc.