Polyoxymethylene POM Nantong Baotai mausoleum m90-44
Polyoxymethylene POM Nantong Baotai mausoleum m90-44
Product parameters
Density: 1.41g/cm ³
Mechanical properties
Tensile modulus 2700mpa
Bending modulus: 2500mpa
Tensile strength 62mpa
Bending strength: 87mpa
Thermal performance
Thermal deformation temperature 1.8MPa 95 °C
Electrical performance
Dielectric strength: 3mmt 19kv / mm
Arc resistance: 240sec internal method
Flame retardancy
Flame retardant grade: no UL 94
Other performance
Half life 20 ° C, 65% RH > 50sec internal method
Temperature index 105-110 ° C (internal method)
Elongation 35%
Notch impact strength: 6.0kj/m²
Polyoxymethylene (POM) is a kind of linear polymer without side chain, with high density and high crystallinity, which has excellent comprehensive properties. The most outstanding characteristic of this material is its high elastic modulus, high hardness and rigidity.
POM is a crystalline plastic with good fluidity in the molten state. Its apparent viscosity is mainly affected by the shear rate. It is a shear sensitive material,
According to the different chemical structures of molecular chains, polyoxymethylene can be divided into homopolymerization and copolymerization. The homopolymer has high density, crystallinity and mechanical strength, while the copolymer has good thermal stability, molding processability and acid and alkaline resistance.
Use of POM
1. Simple transmission gear, guide sleeve, toy motor gear, instrument gear.
2. POM is very suitable for manufacturing automobile pumps, carburetor parts, oil pipes, power valves, upper ten thousand bearings, motor gears, cranks, handles, dashboard, window lifter devices, electric switches, safety belt buckles, etc. for automobiles. Manufacturing wear-resistant parts such as shaft sleeve, gear and sliding block is the strength of modified POM. These parts have less wear on metal, reduce the amount of lubricating oil, and enhance the service life of parts. Therefore, they can widely replace copper, zinc and other metals to produce bearings, gears, pull rods, etc.
