POM TP Lubriblend POM CO CF10 TL10Use performance

POM plastic materials (POM) (Saigang ~ Trane) English name: Polyoxymethylene (Polyformaldehyde) POM plastic materials (POM resin) definition: POM is a side chain, high-density, high crystalline linear aggregation thereof. Can be divided according to their different chemical structure in the molecular chain, both paraformaldehyde and formaldehyde copolymer of two. The important difference between the two: POM density, crystallinity, melting point, thermal stability, narrow range of processing temperatures (approximately 10 ° C), pH stability is slightly lower; while acetal copolymer density, crystallinity, are low melting point, strength, good thermal stability, not easily broken down, wide processing temperature range (50 ° C) pH stability. Engineering plastics with excellent overall performance. Have good physical, mechanical and chemical properties, especially excellent rub resistance. The commonly known race steel or DURACON third largest generic plastic. Suitable for the production of wear-resistant parts, transmission parts, and chemicals, instruments and other antifriction parts. Edit this paragraph, the general performance of the physicochemical properties of POM plastic materials

POM plastic materials is a smooth surface, a shiny hard and dense material, yellow or white, the thin-walled portion is translucent. Combustion characteristics for easy burning, away from the fire continued to burn, flames upper yellow, the lower end of the blue melt drip occurs, there is a strong pungent smell of formaldehyde, fish stench. Polyoxymethylene as a white powder, generally opaque, good coloring properties, specific gravity of 1.41-1.43 g / cc, molding shrinkage of 1.2-3.0%, a molding temperature of 170-200 ° C, the drying conditions 80-90 ° C for 2 hours. POM's long-term heat resistance is not high, but short-term up to 160 ° C, which are poly the POM short-term heat resistance of more than 10 ℃ copolymerization POM, but long-term heat copolymer rather than the homopolymer POM POM high around 10 ℃. Long-term use in the temperature range of -40 ℃ ~ 100 ℃. The POM can easily decompose, the decomposition temperature of 240 degrees. Decomposition irritating and corrosive gas. Therefore, mold steel should be ｓｅｌｅｃｔed corrosion resistance materials.

Mechanical Properties

POM plastic raw strength, high stiffness, good elasticity, antifriction wear resistance. Its excellent mechanical properties, up to more than strength 50.5MPa stiffness up to 2650MPa, very close to the metal. The mechanical properties of the POM with the temperature change is small, and the copolymerization ratio homopolymerization POM POM changes slightly larger. POM of high impact strength, but the conventional impact is less than the ABS and PC;-sensitive POM to notch, notched impact strength can be reduced by as much as 90%. POM fatigue strength is very prominent, 10 alternating loads, fatigue strength up to 35MPa, PA and PC only 28MPa. POM creep similar to the PA in 20 ℃, 21MPa, 3000h is only 2.3%, and little affected by temperature. POM friction factor, good wear resistance (POM PA66 PA6> ABS> HPVC> PS> PC), PV limit value, good self-lubricating properties. POM products to wear, easy to produce high loads scream-like noise.

Electrical properties

POM plastic materials preferably electrically insulating, and almost free from the influence of temperature and humidity; little change in dielectric constant and dielectric loss in a very wide temperature, humidity and the frequency range; excellent arc resistance, and in the high temperatures to maintain. POM of dielectric strength and thickness, thickness 0.127mm for 82.7kV/mm thickness 1.88mm to 23.6kV/mm.

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