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Name: Plastic PVDF Flat Washers
Size:M2,M3,M4,M5,M6,M8,M10,M12
Material: PA66, PA+50%GF, PA+50%GF, PEEK, PVDF, PPS, PTFE, PP, PVC, PC.
PVDF plastic flat washer white/dark gray) has higher stiffness and pressure-bearing capacity than its PTFE counterpart but is slightly less smooth and electrically insulating. It has high strength and toughness at low temperatures and is self-extinguishing. Its working temperature is between -60℃ and +150℃. PVDF is stable to chlorides, bromides and energy rays. Ester and ketone solutions can cause erosion at high temperatures.
English name Polyvinylidene fluoride, is made of PVDF resin extruded at high temperature into plastic flat gaskets, is a fairly pure polymer, it does not contain UV stabilizers, heat stabilizers, softeners, lubricants or flame retardants and other additives. It is used to hold a variety of chemical liquids. Particularly suitable for pure water systems and the transfer of pure chemicals in the semiconductor industry. Due to its chemical inertness, PVDF is virtually non-reactive with any media. High-temperature resistance (can work continuously at 172 degrees), excellent resistance to chemical corrosion and hydrolysis, outstanding UV and weather resistance. High mechanical strength, good rigidity, good creep resistance, good sliding and wear resistance, inherent low flammability, and good electrical insulation properties.
Density ISO1183 1.77g/cm3 Volume resistance VD0303 ﹥1013xcm. water absorption DIN53495 0.04% Surface resistance VDE0303 ﹥1014 Chemical resistance - Dielectric constant 1MHz DIN53483 7.25.
Continuous use temperature -30~150℃ Dielectric loss factor 1MHz DIN53483 0.18.
Yield tensile strength ISO527 50MPa Dielectric strength VDE0303 22kv/mm
Yield tensile strain ISO527 9% Leakage current strength DIN5340 KC300
Ultimate tensile strength ISO527 46MPa Bondability 0
Ultimate tensile strain ISO527 80% Non-toxic and non-hazardous EEC90/128 -
Impact toughness ISO179 252kJ/m2 Coefficient of friction DIN53375 0.34
Notched impact toughness ISO179 22kJ/m2 Flammability UL94 V-0
Rockwell ball-pressure hardness ISO2039-1 80MPa UV resistance U.V
Shore D hardness DIN53505 78 Acid resistance".
Flexural strength ISO178 80MPa Alkali-resistant。
Modulus of elasticity ISO527 2000Mpa Carbonated water resistance
Vicat Softening Temperature ISO306 140°C Chlorine Carbonate Water Resistance (CKW)".
Thermal distortion temperature ISO75 145℃ Aromatic compound resistance。
Coefficient of thermal expansion DIN53752 1.2K-1*104 Ketone resistance 0
Thermal conductivity 20℃ DIN52612 0.13w/(mxk) Thermal water resistance
Product Specification
PVDF sheet flat washers have excellent weather resistance, corrosion resistance, high-temperature resistance, low-temperature resistance, electrical insulation, processability, UV resistance, and flame retardancy. These properties enable PVDF plastic flat washers to be used in harsh environments for long periods of time and to maintain good performance and appearance.
PVDF material plastic flat washers are mostly used in semiconductor, liquid crystal-related devices, such as the field of electronics industry, the field of chemical devices, food processing machines, packaging machines, a variety of parts, pipelines, seals, pump parts, rotating discs, valves, slides and so on. Applicable to petrochemical, chemical, metallurgical, food, paper, textile, piping, seals, pump parts, rotary discs, valves, check valves, extraction centrifuges, embedded gears, piping connections, and slides. Manufacturing of components for the pharmaceutical and atomic energy industries.
PVDF flat washers have excellent performance, so they are widely used in petroleum, chemical, electric power, electronics, aerospace, automobile manufacturing, and other fields.
1. Petrochemical field: PVDF material flat washers have corrosion resistance and high-temperature resistance and can be used for manufacturing pipelines, valves, reactors, and other equipment sealing, but also as used for the outer wall of the pipeline and equipment shell parts sealing.
2. Power field: PVDF material washers have excellent electrical insulation and are flame-retardant. They can be used to manufacture wire insulation, cable sheaths, insulators, and other products that seal and lock and improve the safety performance of electrical appliances.
3. Electronic field: PVDF flat washers have excellent weather resistance, corrosion resistance, and processability. Plastic PVDF flat washers can be used in the manufacture of circuit boards, connectors, terminals, and other products and can also be used as encapsulation materials for semiconductor device sealing.
4. Aerospace field: PVDF material flat washers have excellent high-temperature resistance and UV resistance, and can be used to manufacture aircraft and spacecraft external cover materials and internal structural materials sealing and locking.
5. Automobile manufacturing field: PVDF flat washers have excellent weather resistance, corrosion resistance, and processability. They can be used for manufacturing automobile parts and body covering material sealing and locking, improving the aesthetics and durability of the car.
The production process of PVDF plastic flat washers mainly includes the steps of batching, melting, extruding, calendering, cooling, cutting, molding, and packaging. During the production process, parameters such as raw material ratio, processing temperature, and processing pressure need to be strictly controlled to ensure the performance and appearance of the product.
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