The performance of POM polyoxymethylene: the surface is smooth and shiny, the surface hardness is large, the water absorption is low, the rigidity is good, the toughness is good, the bending strength is high, the fatigue resistance is high, the good sliding property, the wear resistance is very excellent, the electrical performance is excellent, Good dimensional stability, high dimensional accuracy of the product, long-term use in the temperature range of -40 to 100°C, good oil resistance and peroxide resistance.
Properties of glass fiber reinforced POM:
(1) POM is a crystalline plastic with a density of 1.42g/cm3. It has good rigidity and is commonly known as "Saigang".
(2) It has excellent properties such as fatigue resistance, creep resistance, wear resistance, heat resistance, impact resistance, etc., and has a small friction coefficient and good self-lubrication.
(3) POM is not easy to absorb moisture, with a water absorption rate of 0.22 to 0.25%. It has good dimensional stability in a humid environment, and its shrinkage rate is 2.1% (larger). It is difficult to control the size during injection molding. The heat distortion temperature is 172 ° C. There are two kinds of polyoxymethylene, homopolyoxymethylene, with different properties (homopolyoxymethylene has better temperature resistance).
Application of glass fiber reinforced POM:
Glass fiber reinforced POM is tough and elastic, and still has good creep resistance, geometric stability and impact resistance at low temperatures. It can replace most non-ferrous metals, automobiles, machine tools, instrument internals, bearings, fasteners, gears, springs, pipes, conveyor belt accessories, electric kettles, pump casings, drainers, faucets, etc.
performance item |
Homopolymerized POM |
Copolymerized POM |
25%GFPOM |
Relative density |
1.43 |
1.41 |
1.61 |
water absorption,% |
0.25 |
0.21 |
— |
Molding shrinkage,% |
1.5~3 |
1.5~3.5 |
— |
Tensile Strength,MPa |
70 |
62 |
130 |
elongation at break,% |
40 |
60 |
— |
Bending strength,MPa |
90 |
98 |
182 |
Tensile modulus of elasticity,MPa |
3160 |
2830 |
8300 |
Flexural modulus of elasticity,MPa |
2880 |
2600 |
7600 |
Notched impact strength,(J/m) |
76 |
65 |
86 |
Rockwell hardness |
M94 |
M81 |
— |
Friction factor |
— |
0.15 |
— |
fatigue limit,MPa |
35 |
31 |
— |
Application range:
Name: Jerry Meng
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Email:jerry@fulltrustplastic.com
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