polüvinülideenfluoriidi

Polyvinylidene fluoride, commonly known as PVDF, is a specialized fluoropolymer, a type of plastic, known for its excellent chemical resistance, thermal stability, and piezoelectric properties. It is a linear, semi-crystalline polymer derived from the monomer vinylidene fluoride. PVDF is a highly non-reactive thermoplastic and resistant to most acids, bases, solvents, and halogens. This makes it suitable for applications where exposure to harsh chemicals is expected.

In terms of physical properties, PVDF exhibits high tensile strength, good abrasion resistance, and low flammability. It can be processed using standard thermoplastic techniques such as injection molding, extrusion, and film casting. The material is also known for its inherent electrical insulation properties.

A significant characteristic of PVDF is its piezoelectric and pyroelectric behavior. When subjected to mechanical stress or temperature changes, it generates an electrical charge. This property allows PVDF to be used in sensors, actuators, and transducers, as well as in energy harvesting devices. It is also widely employed as a binder material in lithium-ion batteries.

Common applications for PVDF include chemical processing equipment, such as pipes, valves, and linings, due to its corrosion resistance. It is also used in the manufacturing of membranes for water filtration and separation processes, as well as in electrical insulation for wires and cables. Its durability and resistance to environmental factors make it a popular choice in the aerospace and automotive industries, and in architectural coatings.