Polyvinylidene fluoride
- CAS No.
- 24937-79-9
- Chemical Name:
- Polyvinylidene fluoride
- Synonyms
- PVDF;POLY(VINYLIDENE FLUORIDE);poly(1,1-difluoroethylene);PVF2;MW~180000;MW~534000;MW~530000;PVDF/PVF2;PVDF resin;PVDF Powder
- CBNumber:
- CB6313270
- Molecular Formula:
- C2H2F2
- Molecular Weight:
- 64.0340864
- MOL File:
- 24937-79-9.mol
- Modify Date:
- 2024/7/2 17:04:22
| Melting point | 166-170°C |
|---|---|
| Tg | -38 |
| Density | 1.78 g/mL at 25 °C |
| vapor pressure | 15 mm Hg ( 32 °C) |
| refractive index |
n |
| storage temp. | Sealed in dry,Room Temperature |
| solubility | some polar solvents such as organic esters and amines: soluble |
| form | powder |
| color | White |
| Water Solubility | Soluble in organic esters, dimethylacetamide and amines. Insoluble in water. |
| Stability | Stable. Incompatible with strong oxidizing agents, silica. |
| EPA Substance Registry System | Ethene, 1,1-difluoro-, homopolymer (24937-79-9) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319-H335 | |||||||||
| Precautionary statements | P261-P305+P351+P338 | |||||||||
| Hazard Codes | C,T | |||||||||
| Safety Statements | 22-24/25 | |||||||||
| WGK Germany | 3 | |||||||||
| TSCA | Yes | |||||||||
| HS Code | 3904698081 | |||||||||
| NFPA 704 |
|
Polyvinylidene fluoride price More Price(20)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich(India) | P2563 | Immobilon®-P Polyvinylidene difluoride membranes size 15?cm × 15?cm | 24937-79-9 | 10EA | ₹40370.7 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 427152 | Poly(vinylidene fluoride) average Mw ~180,000 by GPC, average Mn ~71,000, beads or pellets | 24937-79-9 | 100G | ₹13275.6 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 427144 | Poly(vinylidene fluoride) average Mw ~275,000 by GPC, average Mn ~107,000, pellets | 24937-79-9 | 100G | ₹13308.9 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 182702 | Poly(vinylidene fluoride) average Mw ~534,000 by GPC, powder | 24937-79-9 | 5G | ₹5440 | 2022-06-14 | Buy |
| Sigma-Aldrich | 347078 | Poly(vinylidene fluoride) average Mw ~530,000, pellets | 24937-79-9 | 100G | ₹11577.3 | 2022-06-14 | Buy |
Polyvinylidene fluoride Chemical Properties,Uses,Production
Chemical Properties
Polyvinylidene fluoride (PVDF) is one of the most rigid and abrasion resistant of the melt-processible fluoropolymers. It has good chemical resistance, though hot sulfuric acid and hot amines can attack it. Like most fluoropolymers, PVDF is inherently flame retardant. It retains useful mechanical properties until 300 degrees F (149 degrees C).
Uses
Coatings, film, filter cloth, instrument linings, filtration membranes, pump parts and linings and valves.
Production Methods
PVDF, the addition polymer of 1,1,difluoroethene, is prepared by high-pressure free-radical polymerization in aqueous systems. It has applications in electric and electronic devices, as weather-resistant binders for exterior architectural finishes, and in a number of areas of the chemicalprocessing industry. The lack of additives and thus the exceedingly low contamination levels make the polymer useful in ultrapure water systems, for example, where high purity is necessary for construction materials.
Definition
ChEBI: A polymer composed of repeating 1,1-difluoroethyl units.
General Description
Poly(vinylidene fluoride) PVDF is a semi crystalline non-centrosymmetric polymer which exhibits piezo-, pyro- and ferroelectric properties. It is a linear polymer that shows permanent electric dipoles perpendicular to the direction of the molecular chain. These dipoles result from the difference in electronegativity between the atoms of hydrogen and fluorine with respect to carbon. Depending on the processing conditions, PVDF exhibits several different crystalline phases (α,β,γ,δ). The β phase of PVDF is the phase that exhibits the best ferroelectric and piezoelectric properties.
Industrial uses
The properties are generally similar to those ofthe other fluorinated resins: relative inertness,low dielectric constant, and thermal stability(up to about 150°C). The resins (PVF2 resins)are, however, stronger and less susceptible tocreep and abrasion than TFE and CTFE resins.
Applications of polyvinylidene fluoride aremainly as electrical insulation, piping, processequipment, and as a protective coating in theform of a liquid dispersion.
Polyvinylidene fluoride Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| Otto Chemie Pvt. Ltd. | +91 9820041841 | Mumbai, India | 5873 | 58 | Inquiry |
| Alfa Aesar | 1 800 209 7001 | Maharashtra, India | 6913 | 58 | Inquiry |
| Sonata Impex | 08048250476Ext 374 | Mumbai, India | 1 | 58 | Inquiry |
| Swami Plast Industries | 08048372485Ext 685 | Ahmedabad, India | 1 | 58 | Inquiry |
| Nanochemazone Inc. | 08048616195 | Haryana, India | 79 | 58 | Inquiry |
| Plastic Abhiyanta | 08048959010 | Kolkata, India | 1 | 58 | Inquiry |
| Hebei Mojin Biotechnology Co., Ltd | +86 13288715578 +8613288715578 | China | 12459 | 58 | Inquiry |
| Hebei Yanxi Chemical Co., Ltd. | +86-17531190177; +8617531190177 | China | 6011 | 58 | Inquiry |
| Shaanxi Haibo Biotechnology Co., Ltd | +undefined18602966907 | China | 1000 | 58 | Inquiry |
| Hebei Jingbo New Material Technology Co., Ltd | +8619931165850 | China | 1000 | 58 | Inquiry |
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