Physical Properties | Metric | English | Comments | ||
---|---|---|---|---|---|
Density | 1.42 g/cc | 0.0513 lb/in³ | ISO 1183 | ||
Water Absorption | 1.4 % @Thickness 2.00 mm |
1.4 % @Thickness 0.0787 in |
Sim. to ISO 62 | ||
Moisture Absorption | 0.300 % @Thickness 2.00 mm |
0.300 % @Thickness 0.0787 in |
Sim. to ISO 62 | ||
Viscosity | 73000 cP @Shear Rate 5000 1/s, Temperature 235 °C |
73000 cP @Shear Rate 5000 1/s, Temperature 455 °F |
ISO 11403-1 -2 | ||
81000 cP @Shear Rate 5000 1/s, Temperature 215 °C |
81000 cP @Shear Rate 5000 1/s, Temperature 419 °F |
ISO 11403-1 -2 | |||
89000 cP @Shear Rate 5000 1/s, Temperature 195 °C |
89000 cP @Shear Rate 5000 1/s, Temperature 383 °F |
ISO 11403-1 -2 | |||
168000 cP @Shear Rate 500 1/s, Temperature 235 °C |
168000 cP @Shear Rate 500 1/s, Temperature 455 °F |
ISO 11403-1 -2 | |||
214000 cP @Shear Rate 500 1/s, Temperature 215 °C |
214000 cP @Shear Rate 500 1/s, Temperature 419 °F |
ISO 11403-1 -2 | |||
272000 cP @Shear Rate 500 1/s, Temperature 195 °C |
272000 cP @Shear Rate 500 1/s, Temperature 383 °F |
ISO 11403-1 -2 | |||
Linear Mold Shrinkage, Flow | 0.019 cm/cm | 0.019 in/in | ISO 294-4 2577 | ||
Linear Mold Shrinkage, Transverse | 0.019 cm/cm | 0.019 in/in | ISO 294-4 2577 | ||
Melt Flow | 21 g/10 min @Load 2.16 kg, Temperature 190 °C |
21 g/10 min @Load 4.76 lb, Temperature 374 °F |
cm³/10min; ISO 1133 | ||
25 g/10 min @Load 2.16 kg, Temperature 190 °C |
25 g/10 min @Load 4.76 lb, Temperature 374 °F |
ISO 1133 | |||
Mechanical Properties | Metric | English | Comments | ||
Hardness, Rockwell M | 92 | 92 | ISO 2039-2 | ||
Hardness, Rockwell R | 120 | 120 | ISO 2039-2 | ||
Tensile Stress | 24.6 MPa @Strain 0.900 %, Temperature 23.0 °C |
3570 psi @Strain 0.900 %, Temperature 73.4 °F |
ISO 11403-1 -2 | ||
25.2 MPa @Strain 1.20 %, Temperature 40.0 °C |
3650 psi @Strain 1.20 %, Temperature 104 °F |
ISO 11403-1 -2 | |||
27.6 MPa @Strain 0.800 %, Temperature 0.000 °C |
4000 psi @Strain 0.800 %, Temperature 32.0 °F |
ISO 11403-1 -2 | |||
42.5 MPa @Strain 1.10 %, Temperature -40.0 °C |
6160 psi @Strain 1.10 %, Temperature -40.0 °F |
ISO 11403-1 -2 | |||
44.6 MPa @Strain 1.40 %, Temperature -20.0 °C |
6470 psi @Strain 1.40 %, Temperature -4.00 °F |
ISO 11403-1 -2 | |||
53.7 MPa @Strain 4.70 %, Temperature 40.0 °C |
7790 psi @Strain 4.70 %, Temperature 104 °F |
ISO 11403-1 -2 | |||
58.9 MPa @Strain 8.20 %, Temperature 40.0 °C |
8540 psi @Strain 8.20 %, Temperature 104 °F |
ISO 11403-1 -2 | |||
61.5 MPa @Strain 3.50 %, Temperature 23.0 °C |
8920 psi @Strain 3.50 %, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
68.6 MPa @Strain 3.20 %, Temperature 0.000 °C |
9950 psi @Strain 3.20 %, Temperature 32.0 °F |
ISO 11403-1 -2 | |||
69.9 MPa @Strain 6.20 %, Temperature 23.0 °C |
10100 psi @Strain 6.20 %, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
78.9 MPa @Strain 5.60 %, Temperature 0.000 °C |
11400 psi @Strain 5.60 %, Temperature 32.0 °F |
ISO 11403-1 -2 | |||
84.5 MPa @Strain 5.60 %, Temperature -20.0 °C |
12300 psi @Strain 5.60 %, Temperature -4.00 °F |
ISO 11403-1 -2 | |||
87.0 MPa @Strain 9.80 %, Temperature -20.0 °C |
12600 psi @Strain 9.80 %, Temperature -4.00 °F |
ISO 11403-1 -2 | |||
93.2 MPa @Strain 4.40 %, Temperature -40.0 °C |
13500 psi @Strain 4.40 %, Temperature -40.0 °F |
ISO 11403-1 -2 | |||
98.6 MPa @Strain 7.70 %, Temperature -40.0 °C |
14300 psi @Strain 7.70 %, Temperature -40.0 °F |
ISO 11403-1 -2 | |||
Tensile Strength, Yield | 71.0 MPa | 10300 psi | ISO 527-1/-2 | ||
Elongation at Break | 23 % | 23 % | Nominal; ISO 527-1/-2 | ||
Elongation at Yield | 12 % | 12 % | ISO 527-1/-2 | ||
Tensile Modulus | 3.30 GPa | 479 ksi | ISO 527-1/-2 | ||
Flexural Modulus | 3.00 GPa | 435 ksi | ISO 178 | ||
Shear Modulus | 0.317 GPa @Temperature 120 °C |
46.0 ksi @Temperature 248 °F |
Dynamic; ISO 11403-1 -2 | ||
0.628 GPa @Temperature 70.0 °C |
91.1 ksi @Temperature 158 °F |
Dynamic; ISO 11403-1 -2 | |||
1.026 GPa @Temperature 20.0 °C |
148.8 ksi @Temperature 68.0 °F |
Dynamic; ISO 11403-1 -2 | |||
1.209 GPa @Temperature -20.0 °C |
175.4 ksi @Temperature -4.00 °F |
Dynamic; ISO 11403-1 -2 | |||
1.449 GPa @Temperature -50.0 °C |
210.2 ksi @Temperature -58.0 °F |
Dynamic; ISO 11403-1 -2 | |||
Shear Strength | 0.0840 MPa @Shear Rate 500 1/s, Temperature 235 °C |
12.2 psi @Shear Rate 500 1/s, Temperature 455 °F |
ISO 11403-1 -2 | ||
0.107 MPa @Shear Rate 500 1/s, Temperature 215 °C |
15.5 psi @Shear Rate 500 1/s, Temperature 419 °F |
ISO 11403-1 -2 | |||
0.136 MPa @Shear Rate 500 1/s, Temperature 195 °C |
19.7 psi @Shear Rate 500 1/s, Temperature 383 °F |
ISO 11403-1 -2 | |||
Secant Modulus | 0.416667 GPa @Strain 7.20 %, Temperature 100 °C |
60.4334 ksi @Strain 7.20 %, Temperature 212 °F |
ISO 11403-1 -2 | ||
0.528 GPa @Strain 7.50 %, Temperature 80.0 °C |
76.6 ksi @Strain 7.50 %, Temperature 176 °F |
ISO 11403-1 -2 | |||
0.628723 GPa @Strain 9.40 %, Temperature 40.0 °C |
91.1900 ksi @Strain 9.40 %, Temperature 104 °F |
ISO 11403-1 -2 | |||
0.688889 GPa @Strain 3.60 %, Temperature 100 °C |
99.9165 ksi @Strain 3.60 %, Temperature 212 °F |
ISO 11403-1 -2 | |||
0.910811 GPa @Strain 3.70 %, Temperature 80.0 °C |
132.104 ksi @Strain 3.70 %, Temperature 176 °F |
ISO 11403-1 -2 | |||
1.00 GPa @Strain 0.900 %, Temperature 100 °C |
145 ksi @Strain 0.900 %, Temperature 212 °F |
ISO 11403-1 -2 | |||
1.01 GPa @Strain 7.00 %, Temperature 23.0 °C |
146 ksi @Strain 7.00 %, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
1.14255 GPa @Strain 4.70 %, Temperature 40.0 °C |
165.715 ksi @Strain 4.70 %, Temperature 104 °F |
ISO 11403-1 -2 | |||
1.24844 GPa @Strain 6.40 %, Temperature 0.000 °C |
181.074 ksi @Strain 6.40 %, Temperature 32.0 °F |
ISO 11403-1 -2 | |||
1.50893 GPa @Strain 5.60 %, Temperature -20.0 °C |
218.855 ksi @Strain 5.60 %, Temperature -4.00 °F |
ISO 11403-1 -2 | |||
1.53333 GPa @Strain 0.900 %, Temperature 80.0 °C |
222.394 ksi @Strain 0.900 %, Temperature 176 °F |
ISO 11403-1 -2 | |||
1.75714 GPa @Strain 3.50 %, Temperature 23.0 °C |
254.856 ksi @Strain 3.50 %, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
2.10 GPa @Strain 1.20 %, Temperature 40.0 °C |
305 ksi @Strain 1.20 %, Temperature 104 °F |
ISO 11403-1 -2 | |||
2.11818 GPa @Strain 4.40 %, Temperature -40.0 °C |
307.221 ksi @Strain 4.40 %, Temperature -40.0 °F |
ISO 11403-1 -2 | |||
2.14375 GPa @Strain 3.20 %, Temperature 0.000 °C |
310.929 ksi @Strain 3.20 %, Temperature 32.0 °F |
ISO 11403-1 -2 | |||
2.73333 GPa @Strain 0.900 %, Temperature 23.0 °C |
396.442 ksi @Strain 0.900 %, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
3.18571 GPa @Strain 1.40 %, Temperature -20.0 °C |
462.055 ksi @Strain 1.40 %, Temperature -4.00 °F |
ISO 11403-1 -2 | |||
3.45 GPa @Strain 0.800 %, Temperature 0.000 °C |
500 ksi @Strain 0.800 %, Temperature 32.0 °F |
ISO 11403-1 -2 | |||
3.86364 GPa @Strain 1.10 %, Temperature -40.0 °C |
560.382 ksi @Strain 1.10 %, Temperature -40.0 °F |
ISO 11403-1 -2 | |||
Izod Impact, Notched (ISO) | 7.00 kJ/m² | 3.33 ft-lb/in² | ISO 180/1A | ||
8.00 kJ/m² @Temperature -40.0 °C |
3.81 ft-lb/in² @Temperature -40.0 °F |
ISO 180/1A | |||
Charpy Impact Unnotched | 20.0 J/cm² | 95.2 ft-lb/in² | ISO 179/1eU | ||
20.0 J/cm² @Temperature -30.0 °C |
95.2 ft-lb/in² @Temperature -22.0 °F |
ISO 179/1eU | |||
Charpy Impact, Notched | 0.800 J/cm² | 3.81 ft-lb/in² | ISO 179/1eA | ||
0.700 J/cm² @Temperature -30.0 °C |
3.33 ft-lb/in² @Temperature -22.0 °F |
ISO 179/1eA | |||
Tensile Creep Modulus, 1 hour | 2800 MPa @Time 3600 sec |
406000 psi @Time 1.00 hour |
ISO 899-1 | ||
Tensile Creep Modulus, 1000 hours | 1500 MPa @Time 3.60e+6 sec |
218000 psi @Time 1000 hour |
ISO 899-1 | ||
Electrical Properties | Metric | English | Comments | ||
Hot Wire Ignition, HWI | 8.0 sec @Thickness 0.750 mm |
8.0 sec @Thickness 0.0295 in |
UL 746A | ||
Thermal Properties | Metric | English | Comments | ||
CTE, linear, Parallel to Flow | 120 µm/m-°C | 66.7 µin/in-°F | ISO 11359-1/-2 | ||
104 µm/m-°C @Temperature 23.0 - 55.0 °C |
57.8 µin/in-°F @Temperature 73.4 - 131 °F |
ASTM E 831 | |||
CTE, linear, Transverse to Flow | 120 µm/m-°C | 66.7 µin/in-°F | ISO 11359-1/-2 | ||
Melting Point | 178 °C | 352 °F | 10°C/min; ISO 11357-1/-3 | ||
Deflection Temperature at 0.46 MPa (66 psi) | 162 °C | 324 °F | ISO 75-1/-2 | ||
Deflection Temperature at 1.8 MPa (264 psi) | 94.0 °C | 201 °F | ISO 75-1/-2 | ||
Vicat Softening Point | 160 °C | 320 °F | 50°C/h 50N; ISO 306 | ||
Flammability, UL94 | HB @Thickness 1.50 mm |
HB @Thickness 0.0591 in |
IEC 60695-11-10 | ||
HB @Thickness 0.800 mm |
HB @Thickness 0.0315 in |
IEC 60695-11-10 | |||
Oxygen Index | 23 % | 23 % | ASTM D2863 | ||
De |
|||||
Additives | Lubricants | ||||
Release agent | |||||
Delivery form | Pellets | ||||
Part Marking Code | >POM< | ISO 11469 | |||
Processing | Injection Moulding | ||||
Regional Availability | Asia Pacific | ||||
Europe | |||||
Global | |||||
Near East/Africa | |||||
North America | |||||
South and Central America | |||||
Resin Identification | POM | ISO 1043 | |||
UL recognition | UL | ||||
UL |
POM 的简介
POM强度、刚度高,弹性好,减磨耐磨性好。其力学性能优异,比强度可达50.5MPa,比刚度可达2650MPa,与金属十分接近。POM的力学性能随温度变化小,共聚POM比均聚POM的变化稍大一点。
POM的冲击强度较高,但常规冲击不及ABS和PC;POM对缺口敏感,有缺口可使冲击强度下降90%之多。
POM的疲劳强度十分突出,10交变载荷作用后,疲劳强度可达35MPa,而PA和PC仅为28MPa。
POM的蠕变性与PA相似,在20℃、21MPa、3000h时仅为2.3%,而且受温度的影响很小。
POM的摩擦因数小,耐磨性好(POM>PA66>PA6>ABS>HPVC>PS>PC),极限PV值很大,自润滑性好。
POM制品对磨时,高载荷作用时易产生类似尖叫的噪声。
POM 化学性质
POM 按分子链结构不同,聚甲醛可分为均聚甲醛和共聚甲醛,前者密度、结晶度、熔点都高,但是热稳定性差,加工温度窄(10度),对酸堿的稳定性略低;后者密度、结晶度、熔点较低,但热稳定性好,不易分解,加工温度宽(50度) 。
POM 不足之处在于:由受强酸腐蚀,耐侯差,粘合性差,热分解与软化温度接近,限氧指数小。它们广泛用于汽车工业,电子电器,机械设备等。还可以做水龙头、框窗、洗漱盆。
POM具有很低的摩擦系数和很好的几何稳定性,特别适合于制作齿轮和轴承。由于它还具有耐高温特性,因此还用于管道器件(管道阀门、泵壳体),草坪设备等。
POM 环境性能:
POM不耐强酸和氧化剂,对烯酸及弱酸有一定的稳定性。
POM的耐溶剂性良好,可耐烃类、醇类、醛类、醚类、汽油、润滑油及弱碱等,并可在高温下保持相当的化学稳定性。吸水性小,尺寸稳定性好。
POM的耐候性不好,长期在紫外线作用下,力学性能下降,表面发生粉化和龟裂。
应用范围
POM属结晶性塑料,熔点明显,一旦达到熔点,熔体粘度迅速下降。当温度超过一定限度或熔体受热时间过长,会引起分解。
POM具有较好的综合性能,在热塑性塑料中是最坚硬的,是塑料材料中力学性能最接近金属的品种之一,其抗张强度、弯曲强度、耐疲劳强度,耐磨性和电性都十分优良,可在-40度--100度之间长期使用。
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PA6T,46,9T、PC、PC/ABS、PBT、ABS、PPA、PPS、POM、PMMA、TPE、PPO、LCP液晶聚合物。
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参考图如下:
