Polyvinylidene fluoride
PVDF stands for polyvinylidene fluoride.
Polyvinylidene fluoride is a polyvinylidene fluoride, translucent or white powder or particle with a strong hydrogen bond and a high oxygen index of 46% . It is nonflammable, with a crystallinity of 65% ~ 78% , a density of 1.77 ~ 1.80 gcm3 and a melting point of 172 ° C, the thermal deformation temperature is 112 ~ 145 ° C and the long-term service temperature is -40 ~ 150 ° C. The polyvinylidene fluoride has the properties of both fluorine resin and general purpose resin. In addition to good chemical corrosion resistance, high temperature resistance, oxidation resistance, weather resistance and radiation resistance, also has piezoelectric, dielectric, thermoelectric and other special properties, is the second largest production of fluoroplastics, global annual production capacity of more than 53,000 tons .
Polyvinylidene fluoride is a highly non-reactive thermoplastic Fluoropolymer. It can be synthesized by Vinylidene fluoride polymerization. PVDF has several trademarks, such as KF, Hylar, KYNAR, and Solef. PVDF is mainly used for occasions where extreme purity requirements, solvent resistance and acid-base corrosion are required. PVDF has a lower density than other Fluoropolymer, such as polytetrafluoroethylene.
Density: 1.78 g/cm3
Melting Point: 177 ° C
Formula:-(C2H2F2) N –
Classification: Fluorocarbon coatings
CAS number: 24937-79-9
Dipole moment: 2.1 d
Alias: Polyvinylidene fluoride; Polyvinylidene difluoride; poly -LRB-vinylene fluorideKYNARynar; hylar; solef; Sygef