What is PVDF?

Summary: PVDF is polyvinylidene fluoride, and its appearance is translucent or white powder or granules. Polyvinylidene fluoride...
PVDF is polyvinylidene fluoride, and its appearance is translucent or white powder or granules.
Polyvinylidene fluoride mainly refers to the homopolymer of vinylidene fluoride or the copolymer of vinylidene fluoride and a small amount of other fluorine-containing vinyl monomers. In addition to high temperature resistance, oxidation resistance, weather resistance, and radiation resistance, it also has special properties such as piezoelectricity, dielectric properties, and thermoelectric properties. It is the second largest product among fluorine-containing plastics. The production capacity exceeds 53,000 tons.
In the chemical structure, a fluorine-carbon bond is used. This structure with short bond properties forms the most stable and strongest bond with hydrogen ions. Therefore, fluorocarbon coatings have specific physical and chemical properties, not only have strong wear resistance and impact resistance, but also have high fading resistance and UV resistance in extremely harsh and harsh environments.
Application range of PVDF
PVDF applications are mainly concentrated in the three major fields of petrochemical, electronic and electrical and fluorocarbon coatings. Due to its good chemical resistance, processability, fatigue and creep resistance, PVDF is the overall or lined pump and valve of the petrochemical equipment fluid processing system. One of the best materials for, pipes, pipe fittings, storage tanks and heat exchangers.
PVDF has good chemical stability and electrical insulation properties, so that the manufactured equipment can meet TOCS and flame retardant requirements. It is widely used in the storage and transportation of high-purity chemicals in the semiconductor industry. The porous membrane, gel, Separator, etc., are used in lithium secondary batteries, and this application has become one of the fastest growing markets for PVDF demand.
PVDF is one of the most important raw materials for fluorocarbon coatings. Fluorocarbon coatings prepared from it have developed to the sixth generation. Because PVDF resin has super weather resistance, it can be used outdoors for a long time without maintenance. This type of coating is It is widely used in power stations, airports, highways, high-rise buildings, etc.
In addition, PVDF resin can also be blended and modified with other resins. For example, PVDF and ABS resin can be blended to obtain composite materials, which have been widely used in construction, automobile decoration, and home appliance housings.