What material is PA66 POM

Pa66 is also called nylon 66; polyhexamethylene adipamide, density 1.15g/cm3
Translucent or opaque milky white crystalline polymer with plasticity. The density is 1.15g/cm3. The melting point is 252°C. The embrittlement temperature is -30℃. The thermal decomposition temperature is greater than 350°C. Continuous heat resistance of 80-120℃, equilibrium water absorption rate of 2.5%. It is resistant to acids, alkalis, most inorganic salt solutions, halogenated alkanes, hydrocarbons, esters, ketones, etc., but it is easily soluble in polar solvents such as phenol and formic acid. It has excellent wear resistance, self-lubrication and high mechanical strength. But the water absorption is large, so the dimensional stability is poor.
POM, also known as Saigang~Trane, English name: Polyoxymethylene (Polyformaldehyde, density 1.42

Polyoxymethylene is a hard and dense material with a smooth, shiny surface, light yellow or white, and the thin wall part is translucent. The burning characteristics are easy to burn, and continue to burn after leaving the fire. The upper end of the flame is yellow, and the lower end is blue, melting and dripping occur, and there is a strong irritating formaldehyde smell and fishy smell. Polyoxymethylene is a white powder, generally opaque, good colorability, specific gravity 1.41-1.43 g/cm3, molding shrinkage rate 1.2-3.0%, molding temperature 170-200℃, drying conditions 80-90℃ for 2 hours. The long-term heat resistance of POM is not high, but it can reach 160°C in the short-term. The short-term heat resistance of homopolymerized POM is more than 10°C higher than that of copolymerized POM, but the long-term heat-resistant copolymerized POM is about 10°C higher than that of homopolymerized POM. It can be used for a long time in the temperature range of -40℃~100℃. POM is easily decomposed, and the decomposition temperature is 240 degrees. Irritating and corrosive gases will occur during decomposition. Therefore, the mold steel should be made of corrosion-resistant materials.

Please send inquiry and drawing to sales@honyplastic.com