Keywords:Perfluoroethylene propylene (FEP/F46)     PTFE/PTFE/Teflon Series     Soluble polytetrafluoroethylene (PFA)

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Is PVDF plastic or rubber?

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2024-03-14

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PVDF, known as polyvinylidene fluoride (Polyvinylidene fluoride), is a highly engineered polymer material. In materials science classification, PVDF is usually considered a thermoplastic, not rubber. However, its performance characteristics have certain rubber characteristics, especially after modification or special processing, it can show good flexibility and elastic recovery ability.

First of all, as a plastic, PVDF has a typical thermoplastic processing performance, that is, it can melt flow under heating, and can be solidified after cooling, and this process can be repeated, so it is widely used in injection molding, extrusion, calendering and molding and other plastic processing technology. At the same time, PVDF plastic has excellent chemical stability and weather resistance, and has high resistance to most chemicals and ultraviolet radiation, which determines that it is widely used in chemical anti-corrosion equipment, pipe, wire and cable sheath and other fields.

Second, PVDF exhibits rubber-like properties under certain conditions. Through special cross-linking treatment, PVDF can form a kind of elastic membrane material, which is similar to rubber in mechanical properties and can quickly restore its original state after tensile deformation, so it shines in some high-performance applications such as waterproof breathable membrane, lithium-ion battery diaphragm, acoustic membrane and other fields.

To sum up, although PVDF belongs to the category of plastic from the basic definition and most application scenarios, its unique molecular structure and excellent designability enable it to reflect the elasticity and flexibility of rubber after special treatment, thus broadening its application fields in various high-tech industries.

This article is originally created by Teflon's little sister. Welcome to pay attention and take you to grow knowledge together!

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