427179

Poly(vinylidene fluoride-co-hexafluoropropylene)

average M_w ~455,000, average M_n ~110,000, pellets

• Synonym(s): PVDF-HFP
• Linear Formula: (-CH₂CF₂-)_x[-CF₂CF(CF₃)-]_y
• CAS Number: 9011-17-0
• MDL number: MFCD00212573
• UNSPSC Code: 12162002
• PubChem Substance ID: 24866742
• NACRES: NA.23

Properties

• form: pellets
• melt index: 3.5-7.5 g/10 min (230°C/12.5kg)
• mol wt: average M_n ~110,000; average M_w ~455,000
• impact strength: 6-10 ft-lb/in. (Izod, ASTM D 256, notched)
• dielectric constant: 9.0-10.0, 100 Hz (ASTM D 150)
• hardness: 70 (Shore D, ASTM D 2240)
• refractive index: n20/D 1.42
• viscosity: 23,000-27,000 poise(230 °C) (100 sec^-1)(lit.)
• transition temp: T_m 155-160 °C (ASTM D 3418)
• density: 1.77 g/mL at 25 °C
• SMILES string: FC(F)=C.FC(F)=C(F)C(F)(F)F

Description

Application

Wire and cable coatings, flexible and corrosion-resistant tubing, and liners for pipes and tanks.

Features and Benefits

Excellent thermal stability, chemical and abrasion resistance, impervious to UV degradation, self-extinguishing and retains properties on aging. Improved flexibility at subzero temperatures, stress crack resistance and elongation to break over poly(vinylidene fluoride).

Physical form

Crystalline, thermoplastic copolymer.

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 2
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves