Polyvinylidene Fluoride

Name:
Polyvinylidene Fluoride
Detailed information:

M Formula:	(—H2C═CF2—)n
Properties:
Crystals. Mp 171C, thermally stable from −62 to +148C; combustible, self-extinguishing and nondripping. Tensile strength 7,000 psi at 25C, yield stress 5,500 psi, elongation 300%, compression strength 10,000 psi, thermal conductivity 1.05 Btu/hr/sq ft/F/in, water absorption 0.04% in 24 hr, d 1.76, refr index 1.42. Resistant to oxidative degradation, electricity, acids, alkalies, oxidizers, halogens; somewhat soluble in dimethylacetamide, attacked by hot concentrated sulfuric acid or n-butylamine.
Available Forms:
Powder, pellets, solution, and dispersion.
Use:
Insulation for high-temperature wire; tank linings; chemical tanks and tubing; protective paints and coatings with exceptional resistance (30 years) to weathering and UV; valve and impeller parts; shrinkage tubing to encapsulate resistors, diodes, and soldered joints; sealant.

See Fluorocarbon Polymer.