427160

Poly(vinylidene fluoride-co-hexafluoropropylene)

average M_w ~400,000, average M_n ~130,000, pellets

• Sinónimos: PVDF-HFP
• Fórmula lineal: (-CH₂CF₂-)_x[-CF₂CF(CF₃)-]_y
• Número de CAS: 9011-17-0
• Número MDL: MFCD00212573
• Código UNSPSC: 12162002
• ID de la sustancia en PubChem: 24866741
• NACRES: NA.23

Propiedades

• Formulario: pellets
• Nivel de calidad: 100
• índice de fusión: 3.5-7.5 g/10 min (230°C/12.5kg)
• mol peso: average M_n ~130,000; average M_w ~400,000
• fuerza del impacto: 12-20 ft-lb/in. (Izod, ASTM D 256, notched)
• constante dieléctrica: 9.4-10.6, 100 Hz (ASTM D 150)
• dureza: 65-70 (Shore D, ASTM D 2240)
• índice de refracción: n20/D 1.41
• viscosidad: 23,000-27,000 poise(230 °C) (100 sec^-1; typical)(lit.)
• temperatura de transición: brittleness temperature -62 °C (ASTM 2800); T_m 140-145 °C (ASTM D 3418)
• densidad: 1.77 g/mL at 25 °C
• cadena SMILES: FC(F)=C.FC(F)=C(F)C(F)(F)F

Descripción

Descripción general

Poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) is a hydrophobic crystalline copolymer with excellent properties such as good thermal stability, high polarity, ionic conductivity, and good solvent resistance.

Aplicación

Owing to its high polarity, wettability by organic solvents, and relatively high ionic conductivity, PVDF-HFP is widely used as a polymer matrix to prepare gel polymer electrolytes for energy storage applications. For example, it can be used to enhance the performance of flexible solid-state supercapacitors.

It can be used to prepare superhydrophobic polymer nanocomposites. For example, PVDF-HFP- SiO₂ composite can be used to enhance the thermochromism in regioregular poly(3-hexylthiophene), P3HT.

It can also be used to prepare lead-free piezoelectric flexible polymer composites for nanogenerators. PVDF-HFP can be preferred over other polymer matrices because of its higher solubility, greater free volume, and better mechanical strength.

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

Características y beneficios

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).

Forma física

Crystalline, thermoplastic copolymer.

Información de seguridad

• Código de clase de almacenamiento: 11 - Combustible Solids
• Clase de riesgo para el agua (WGK): WGK 2
• Punto de inflamabilidad (°F): Not applicable
• Punto de inflamabilidad (°C): Not applicable
• Equipo de protección personal: Eyeshields, Gloves, type N95 (US)