Difference between revisions of "Polyvinyl fluoride"
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== Description == | == Description == | ||
| − | A clear, tough, flexible thermoplastic resin formed from vinyl fluoride. | + | A clear, tough, flexible thermoplastic resin formed from vinyl fluoride. Polyvinylidene fluoride (PVDF) [(CH2 – CF2)n] is a thermoplastic fluorinated polymer that was invented and patented by the DuPont Corporation in 1948. Developed as a coating, its first widespread commercial use was as a pigmented liquid coating called Kynar 500®. Today, PVDF is used as a coating for metals. It is often made into a copolymer with other fluorinated monomers in order to improve or modify its properties. |
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
| − | + | Polyvinylidene difluoride (PVDF); poly(vinylene fluoride); poli(fluoruro de vinilo) (Esp.); fluorure de polyvinyl (Fr.); polivinil fluoruro (It.); fluoreto de polivinilo (Port.); poly(vinyl fluoride); polyvinylfluoride (PVF), poly(1,1-difluoroethane) | |
| − | Examples: Tedlar® [DuPont]; | + | Examples: Tedlar® [DuPont]; Kynar 500 (Arkema); Hylar 5000 (Solvay Solexis) ; Solef (Solvay); Sygef |
| − | == | + | ==Applications== |
| + | acid resistant filter cloths, surgical sutures, electrical braids, and in outdoor protective coverings. | ||
| + | ==Personal Risks== | ||
| − | + | ==Collections Risks== | |
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Degrades with heat and light to produce hydrofluoric acid. | Degrades with heat and light to produce hydrofluoric acid. | ||
| − | == | + | ==Environmental Risks== |
| − | + | == Physical and Chemical Properties == | |
| + | is resistant to water, oils, solvents, acids and alkalis. It is used in | ||
| + | * Soluble in cyclohexanone, dimethyl formamide | ||
| + | * Insoluble in water, oils, alcohols, acids, alkalis, bleaches. | ||
| + | * Inert in most aliphatic, aromatic and chlorinated compounds. | ||
| + | * Tenacity = 2.2-4.4 g/denier | ||
| + | * Elongation = 15-30% | ||
| + | * Moisture regain = 0.04% | ||
| + | * Melting Point = 170 | ||
| + | * Density = 1.3-1.7 | ||
| + | * Refractive Index = 1.42 | ||
| + | ==Working Properties== | ||
| − | == | + | == Resources and Citations == |
| + | * Contributions: Catherine Stephens: AIC Plastics Panel, 2020. | ||
* Richard S. Lewis, ''Hawley's Condensed Chemical Dictionary'', Van Nostrand Reinhold, New York, 10th ed., 1993 | * Richard S. Lewis, ''Hawley's Condensed Chemical Dictionary'', Van Nostrand Reinhold, New York, 10th ed., 1993 | ||
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* Pam Hatchfield, ''Pollutants in the Museum Environment'', Archetype Press, London, 2002 | * Pam Hatchfield, ''Pollutants in the Museum Environment'', Archetype Press, London, 2002 | ||
| − | * J.Gordon Cook, ''Handbook of Textile Fibres:II Man-made Fibres'', Merrow Publishing Co. , Durham, England | + | * J.Gordon Cook, ''Handbook of Textile Fibres:II Man-made Fibres'', Merrow Publishing Co. , Durham, England 1984, p.520. |
[[Category:Materials database]] | [[Category:Materials database]] | ||
Revision as of 10:03, 29 July 2020
Description
A clear, tough, flexible thermoplastic resin formed from vinyl fluoride. Polyvinylidene fluoride (PVDF) [(CH2 – CF2)n] is a thermoplastic fluorinated polymer that was invented and patented by the DuPont Corporation in 1948. Developed as a coating, its first widespread commercial use was as a pigmented liquid coating called Kynar 500®. Today, PVDF is used as a coating for metals. It is often made into a copolymer with other fluorinated monomers in order to improve or modify its properties.
Synonyms and Related Terms
Polyvinylidene difluoride (PVDF); poly(vinylene fluoride); poli(fluoruro de vinilo) (Esp.); fluorure de polyvinyl (Fr.); polivinil fluoruro (It.); fluoreto de polivinilo (Port.); poly(vinyl fluoride); polyvinylfluoride (PVF), poly(1,1-difluoroethane)
Examples: Tedlar® [DuPont]; Kynar 500 (Arkema); Hylar 5000 (Solvay Solexis) ; Solef (Solvay); Sygef
Applications
acid resistant filter cloths, surgical sutures, electrical braids, and in outdoor protective coverings.
Personal Risks
Collections Risks
Degrades with heat and light to produce hydrofluoric acid.
Environmental Risks
Physical and Chemical Properties
is resistant to water, oils, solvents, acids and alkalis. It is used in
- Soluble in cyclohexanone, dimethyl formamide
- Insoluble in water, oils, alcohols, acids, alkalis, bleaches.
- Inert in most aliphatic, aromatic and chlorinated compounds.
- Tenacity = 2.2-4.4 g/denier
- Elongation = 15-30%
- Moisture regain = 0.04%
- Melting Point = 170
- Density = 1.3-1.7
- Refractive Index = 1.42
Working Properties
Resources and Citations
- Contributions: Catherine Stephens: AIC Plastics Panel, 2020.
- Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
- Pam Hatchfield, Pollutants in the Museum Environment, Archetype Press, London, 2002
- J.Gordon Cook, Handbook of Textile Fibres:II Man-made Fibres, Merrow Publishing Co. , Durham, England 1984, p.520.