1. white powder chemical product 2.Polytetrafluoroetylene is short for PTFE resin, F4 3.High temperature, low temperaturere
The mechanical properties of PTFE is relatively soft. Has a very low surface energy. PTFE (F4, PTFE) has a good use of performance: high-temperature - long-term use temperature of 200 to 260 degrees, the low temperature is still soft - at -100 degrees; corrosion resistance - ability aqua regia, and all organic solvents; weather resistance - Plastic best aging life; high lubrication - the smallest plastic friction coefficient (0.04); not sticky - with the smallest surface tension of solid materials without adhesion of any substance; no poison - a physiologically inert; excellent electrical performance and is ideal for C-level insulating materials. PTFE material, widely used in the defense industry, atomic energy, petroleum, radio, electrical machinery, chemical industry and other important sectors. Products: PTFE ethylene bar, tubing, plate, turning plate.
Mechanical properties The friction coefficient is extremely small, only 1/5 of the polyethylene, which is an important feature of the perfluorocarbon surface. Also, because the force is very low in fluorine - carbon chain molecules, PTFE not sticky.
Mechanical properties: tensile strength σb (MPa): 20.7 ~ 27.5 Elongation δ5 (%): 250 to 350 the impact toughness values of ak (J/cm2): band gap: ≥ 16.1; unnotched:> 98.1 tensile elastic modulus (MPa): ≥ 3.92 hardness: 50 ~ 65D Thermal properties: thermal deformation temperature: 1.86MPa: 55 ° C; 0.46MPa: 120 ° C Martin heat-resistant temperature: 250 ° C continuous use temperature: 250 ° C Flammability: self-extinguishing PTFE broader in the -196 to 260 ° C temperature range to maintain good mechanical properties, one of the characteristics of the fluorocarbon polymer does not become brittle at low temperatures. Resistance to chemical corrosion and weather resistance in addition to the molten alkali metal, Teflon is almost free from any chemical reagent corrosion. For example, in concentrated sulfuric acid, nitric acid, hydrochloric acid, even in aqua regia and boil, its weight and performance did not change, almost insoluble in all solvents, only slightly soluble alkane (about 0.1g/100g) above 300 °C. PTFE does not absorb moisture, flammable, oxygen, ultraviolet radiation are very stable, and therefore have excellent weathering resistance. The electrical properties of PTFE in a wide frequency range of dielectric constant and dielectric loss are very low, and the breakdown voltage, volume resistivity, and arc resistance is higher. Poor radiation resistance of the radiation resistance of PTFE (104 rads), the degradation caused by high-energy radiation, electrical and mechanical properties of the polymer were significantly decreased.
buy PTFE resin
