| POM is a versatile engineering thermoplastics with excellent mechanical properties, electrical properties, wear resistance, dimensional stability, chemical resistance, in particular, outstanding fatigue resistance. And good self-lubricity, is an alternative to metal, especially copper and aluminum, zinc and other nonferrous metal and alloy products is the ideal engineering plastics, widely used in electronics, electrical, automobile, light industry, machinery, chemicals, building materials and other fields.POM formaldehyde as raw materials, according to the synthesis process can be divided into polyoxymethylene and acetal copolymer two categories. |
 |
| Property |
Unit |
POM |
| Copolymerization |
Homopolymer |
| Density |
g/cm3 |
1.425 |
1.41 |
| Moisture |
% |
0.25 |
0.22 |
| Tensile |
MPa |
68.6 |
60.37 |
| Elongation ratio |
% |
Inject15 Press75 |
60-75 |
| Bending strength |
MPa |
96.04 |
89.18 |
| Compression strength |
MPa |
123.48 |
109.76 |
| Impact |
KJ/m |
Inject7.6 Press12.5 |
6.5-7.6 |
| Hardness |
ÉÛÊÏ (ÂåÊÏ RH) |
(M94,R120) |
(M78-80) |
| Temperaure of thermal deformation C |
0.45MPa |
170 |
158 |
| Dielectric Strength(3.2mm) |
Kv/mm |
18.6 |
19.7 |
| Strong-acid influence |
¡¡ |
Corrode |
| Alkali influence |
¡¡ |
Some resistance |
| Organic solvent |
¡¡ |
Fine | |
