What is PVDF polymer?
PVDF is the four-letter acronym for Polyvinylidene Fluoride, one of the world’s toughest, most used high purity, synthetic materials. PVDF is a polymer that belongs to the thermoplastic category of plastics.
What is PVDF piezoelectric?
Piezoelectric Characteristics. The term piezoelectricity is used to study the piezoelectric properties of PVDF. It is based on the ability of a material to convert internal elastic energy to dielectric energy when the external load is applied [32].
What type of material is PVDF?
polyvinylidene fluoride
PVDF (polyvinylidene fluoride), often referred to by its trade name Kynar®, is a high purity engineering thermoplastic with excellent chemical resistance, abrasion resistance, flame resistance, and UV stability. PVDF is widely used for chemical tank liners and semiconductor equipment components.
Is PVDF a Teflon?
PVDF belongs to the group of fluorine-containing thermoplastics whose most well-known member is Teflon® (PTFE). In terms of chemical structure PVDF is related to PVC but on account of the fluorine atoms it has a more stable chemical structure.
Is PVDF stronger than PVC?
PVDF has increased mechanical durability over both PVC and CPVC. PVDF is more resistant to permeation and to a greater number of chemicals. PVDF materials can meet ASTM fire and smoke spread requirements. PVDF is unaffected by ultraviolet UV and exhibits increased resistance against nuclear radiation.
Does PVDF degrade?
Although generally stable and inert. PVF and PVDF have been observed to undergo degradation resulting from some service conditions, such as high temperatures, and from relatively high temperatures encountered during fabrication.
Is PVDF toxic?
PVDF has been widely used in the membrane industry but its biological effects remain to be addressed. Although PVDF showed a reduced level of inflammation compared to PP in previous reports, we found that PVDF showed toxicity in macrophages resulting in cell death.
Is PVDF the same as PTFE?
The big difference between PTFE and PVDF is that PTFE membranes can be used in the filtration of strong acids and aggressive solutions, but PVDF membranes are more suited for the filtration of non-aggressive aqueous and mild organic solutions.
What is the difference between PVC and PVDF?
PVDF Versus PVC, CPVC & Metal Pipe PVDF operates at higher temperatures and is suggested up to 284 °F; CPVC up to 200 °F and PVC only to 140 °F. PVDF has increased mechanical durability over both PVC and CPVC. PVDF is more resistant to permeation and to a greater number of chemicals.
What are the most important factors in selecting chemicals for PVC?
With a variety of options available, factors need to be considered, including the material of the valve being used, temperature and pressure requirements, flow control, and fluid type. This article discusses PVC and chlorinated PVC (CPVC) valves in chemical processing.
Is PVDF a nylon?
PVDF transfer membrane is a naturally hydrophobic, unsupported, high retention capacity matrix for protein and nucleic acid binding applications. Nylon transfer membrane is optimal for nucleic binding applications.
What is a PVDF filter?
Description of PVDF Membrane Filters PVDF membrane filter has a good heat resistance and chemical stability. PVDF filter is commonly used for purification during sterilizing or clarifying procedures. Sterile PVDF filter membrane are often used for biological sterilization filtration after hydrophilic treatment.
Which is the best description of PVDF material?
PVDF material datasheet. Polyvinylidene fluoride, or polyvinylidene fluoride (PVDF) is a highly non-reactive and pure thermoplastic fluoropolymer produced by the polymerization of vinylidene fluoride PVDF is a specialty plastic material in the fluoropolymer family; it is used generally in applications requiring the highest purity, strength,…
What can PVDF solid rod be used for?
It can be injected, molded or welded and is commonly used in the chemical, semiconductor, medical and defense industries, as well as in lithium ion batteries. It is also available as a crosslinked closed cell foam, used increasingly in aviation and aerospace applications.
Why does PVDF have a low melting point?
Compared to other fluoropolymers, it has an easier melt process because of its relatively low melting point of around 177 °C. It has a low density (1.78 g/cm3) compared to the other fluoropolymers. It is available as piping products, sheet, tubing, films, plate and an insulator for premium wire.