POM (polyoxymethylene resin) is a linear polymer without side chains, characterized by its high density and high crystallinity. Depending on the chemical structure of its molecular chain, it can be classified into homopolymer POM and copolymer POM. The key differences are as follows: Homopolymer POM has higher density, crystallinity, and melting point but poorer thermal stability and a narrower processing temperature range (approximately 10°C), with slightly lower acid and alkali resistance; in contrast, copolymer POM has lower density, crystallinity, melting point, and strength but better thermal stability, less prone to decomposition, and a wider processing temperature range (approximately 50°C), with better acid and alkali resistance. POM is an engineering plastic with excellent overall performance, featuring superior physical, mechanical, and chemical properties, especially outstanding wear resistance. Commonly known as acetal or delrin, it is the third most widely used general-purpose engineering plastic. It is suitable for manufacturing wear-resistant parts, transmission components, and parts for chemical instruments.
One type of synthetic resin, also known as polyoxymethylene resin, POM plastic, or acetal material, is a white or black plastic pellet characterized by high hardness, rigidity, and wear resistance. It is primarily used for gears, bearings, automotive components, machine tools, and internal components of instruments that serve as structural elements.
