Physical Properties | Metric | English | Comments | ||
---|---|---|---|---|---|
Density | 1.42 g/cc | 0.0513 lb/in³ | ISO 1183 | ||
Water Absorption | 0.90 % @Thickness 2.00 mm |
0.90 % @Thickness 0.0787 in |
Sim. to ISO 62 | ||
Moisture Absorption | 0.200 % @Thickness 2.00 mm |
0.200 % @Thickness 0.0787 in |
Sim. to ISO 62 | ||
Linear Mold Shrinkage, Flow | 0.019 cm/cm | 0.019 in/in | ISO 294-4 2577 | ||
Linear Mold Shrinkage, Transverse | 0.018 cm/cm | 0.018 in/in | ISO 294-4 2577 | ||
Melt Flow | 6.0 g/10 min @Load 2.16 kg, Temperature 190 °C |
6.0 g/10 min @Load 4.76 lb, Temperature 374 °F |
cm³/10min; ISO 1133 | ||
7.0 g/10 min @Load 2.16 kg, Temperature 190 °C |
7.0 g/10 min @Load 4.76 lb, Temperature 374 °F |
ISO 1133 | |||
Mechanical Properties | Metric | English | Comments | ||
Tensile Stress | 4.47 MPa @Strain 0.150 %, Temperature 40.0 °C |
648 psi @Strain 0.150 %, Temperature 104 °F |
ISO 11403-1 -2 | ||
6.31 MPa @Strain 0.460 %, Temperature 90.0 °C |
915 psi @Strain 0.460 %, Temperature 194 °F |
ISO 11403-1 -2 | |||
9.92 MPa @Strain 0.290 %, Temperature 23.0 °C |
1440 psi @Strain 0.290 %, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
21.3 MPa @Strain 0.611 %, Temperature 0.000 °C |
3090 psi @Strain 0.611 %, Temperature 32.0 °F |
ISO 11403-1 -2 | |||
24.56 MPa @Strain 2.58 %, Temperature 90.0 °C |
3562 psi @Strain 2.58 %, Temperature 194 °F |
ISO 11403-1 -2 | |||
27.19 MPa @Strain 0.730 %, Temperature -20.0 °C |
3944 psi @Strain 0.730 %, Temperature -4.00 °F |
ISO 11403-1 -2 | |||
27.45 MPa @Strain 0.690 %, Temperature -40.0 °C |
3981 psi @Strain 0.690 %, Temperature -40.0 °F |
ISO 11403-1 -2 | |||
32.21 MPa @Strain 4.88 %, Temperature 90.0 °C |
4672 psi @Strain 4.88 %, Temperature 194 °F |
ISO 11403-1 -2 | |||
37.04 MPa @Strain 1.71 %, Temperature 40.0 °C |
5372 psi @Strain 1.71 %, Temperature 104 °F |
ISO 11403-1 -2 | |||
50.17 MPa @Strain 2.29 %, Temperature 23.0 °C |
7277 psi @Strain 2.29 %, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
54.39 MPa @Strain 3.93 %, Temperature 40.0 °C |
7889 psi @Strain 3.93 %, Temperature 104 °F |
ISO 11403-1 -2 | |||
56.48 MPa @Strain 2.29 %, Temperature 0.000 °C |
8192 psi @Strain 2.29 %, Temperature 32.0 °F |
ISO 11403-1 -2 | |||
60.28 MPa @Strain 6.41 %, Temperature 40.0 °C |
8743 psi @Strain 6.41 %, Temperature 104 °F |
ISO 11403-1 -2 | |||
64.31 MPa @Strain 4.58 %, Temperature 23.0 °C |
9327 psi @Strain 4.58 %, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
68.72 MPa @Strain 7.21 %, Temperature 23.0 °C |
9967 psi @Strain 7.21 %, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
72.85 MPa @Strain 4.53 %, Temperature 0.000 °C |
10570 psi @Strain 4.53 %, Temperature 32.0 °F |
ISO 11403-1 -2 | |||
75.19 MPa @Strain 3.25 %, Temperature -20.0 °C |
10910 psi @Strain 3.25 %, Temperature -4.00 °F |
ISO 11403-1 -2 | |||
77.78 MPa @Strain 7.12 %, Temperature 0.000 °C |
11280 psi @Strain 7.12 %, Temperature 32.0 °F |
ISO 11403-1 -2 | |||
80.68 MPa @Strain 3.12 %, Temperature -40.0 °C |
11700 psi @Strain 3.12 %, Temperature -40.0 °F |
ISO 11403-1 -2 | |||
85.65 MPa @Strain 5.67 %, Temperature -20.0 °C |
12420 psi @Strain 5.67 %, Temperature -4.00 °F |
ISO 11403-1 -2 | |||
88.5 MPa @Strain 8.47 %, Temperature -20.0 °C |
12800 psi @Strain 8.47 %, Temperature -4.00 °F |
ISO 11403-1 -2 | |||
93.8 MPa @Strain 5.11 %, Temperature -40.0 °C |
13600 psi @Strain 5.11 %, Temperature -40.0 °F |
ISO 11403-1 -2 | |||
97.6 MPa @Strain 7.38 %, Temperature -40.0 °C |
14200 psi @Strain 7.38 %, Temperature -40.0 °F |
ISO 11403-1 -2 | |||
Tensile Strength, Yield | 74.0 MPa | 10700 psi | ISO 527-1/-2 | ||
Elongation at Break | 35 % | 35 % | Nominal; ISO 527-1/-2 | ||
Elongation at Yield | 15 % | 15 % | ISO 527-1/-2 | ||
Tensile Modulus | 3.30 GPa | 479 ksi | ISO 527-1/-2 | ||
Flexural Strength | 86.0 MPa @Strain 3.50 % |
12500 psi @Strain 3.50 % |
ISO 178 | ||
Flexural Modulus | 3.10 GPa | 450 ksi | ISO 178 | ||
Secant Modulus | 0.570 GPa @Strain 5.00 %, Temperature 100 °C |
82.7 ksi @Strain 5.00 %, Temperature 212 °F |
ISO 11403-1 -2 | ||
0.591429 GPa @Strain 7.00 %, Temperature 80.0 °C |
85.7809 ksi @Strain 7.00 %, Temperature 176 °F |
ISO 11403-1 -2 | |||
0.736364 GPa @Strain 3.30 %, Temperature 100 °C |
106.802 ksi @Strain 3.30 %, Temperature 212 °F |
ISO 11403-1 -2 | |||
0.754156 GPa @Strain 8.18 %, Temperature 40.0 °C |
109.383 ksi @Strain 8.18 %, Temperature 104 °F |
ISO 11403-1 -2 | |||
0.9075 GPa @Strain 4.00 %, Temperature 80.0 °C |
131.6 ksi @Strain 4.00 %, Temperature 176 °F |
ISO 11403-1 -2 | |||
0.99375 GPa @Strain 1.60 %, Temperature 100 °C |
144.13 ksi @Strain 1.60 %, Temperature 212 °F |
ISO 11403-1 -2 | |||
1.15 GPa @Strain 0.400 %, Temperature 100 °C |
167 ksi @Strain 0.400 %, Temperature 212 °F |
ISO 11403-1 -2 | |||
1.2163 GPa @Strain 5.46 %, Temperature 23.0 °C |
176.41 ksi @Strain 5.46 %, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
1.21638 GPa @Strain 4.70 %, Temperature 40.0 °C |
176.424 ksi @Strain 4.70 %, Temperature 104 °F |
ISO 11403-1 -2 | |||
1.255 GPa @Strain 2.00 %, Temperature 80.0 °C |
182.0 ksi @Strain 2.00 %, Temperature 176 °F |
ISO 11403-1 -2 | |||
1.32683 GPa @Strain 6.56 %, Temperature -20.0 °C |
192.443 ksi @Strain 6.56 %, Temperature -4.00 °F |
ISO 11403-1 -2 | |||
1.39777 GPa @Strain 5.38 %, Temperature 0.000 °C |
202.733 ksi @Strain 5.38 %, Temperature 32.0 °F |
ISO 11403-1 -2 | |||
1.63106 GPa @Strain 5.86 %, Temperature -40.0 °C |
236.569 ksi @Strain 5.86 %, Temperature -40.0 °F |
ISO 11403-1 -2 | |||
1.64 GPa @Strain 0.500 %, Temperature 80.0 °C |
238 ksi @Strain 0.500 %, Temperature 176 °F |
ISO 11403-1 -2 | |||
2.16608 GPa @Strain 1.71 %, Temperature 40.0 °C |
314.168 ksi @Strain 1.71 %, Temperature 104 °F |
ISO 11403-1 -2 | |||
2.19083 GPa @Strain 2.29 %, Temperature 23.0 °C |
317.758 ksi @Strain 2.29 %, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
2.31354 GPa @Strain 3.25 %, Temperature -20.0 °C |
335.556 ksi @Strain 3.25 %, Temperature -4.00 °F |
ISO 11403-1 -2 | |||
2.46638 GPa @Strain 2.29 %, Temperature 0.000 °C |
357.724 ksi @Strain 2.29 %, Temperature 32.0 °F |
ISO 11403-1 -2 | |||
2.5859 GPa @Strain 3.12 %, Temperature -40.0 °C |
375.06 ksi @Strain 3.12 %, Temperature -40.0 °F |
ISO 11403-1 -2 | |||
2.98 GPa @Strain 0.150 %, Temperature 40.0 °C |
432 ksi @Strain 0.150 %, Temperature 104 °F |
ISO 11403-1 -2 | |||
3.42069 GPa @Strain 0.290 %, Temperature 23.0 °C |
496.137 ksi @Strain 0.290 %, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
3.48609 GPa @Strain 0.611 %, Temperature 0.000 °C |
505.622 ksi @Strain 0.611 %, Temperature 32.0 °F |
ISO 11403-1 -2 | |||
3.72466 GPa @Strain 0.730 %, Temperature -20.0 °C |
540.225 ksi @Strain 0.730 %, Temperature -4.00 °F |
ISO 11403-1 -2 | |||
3.97826 GPa @Strain 0.690 %, Temperature -40.0 °C |
577.007 ksi @Strain 0.690 %, Temperature -40.0 °F |
ISO 11403-1 -2 | |||
Izod Impact, Notched (ISO) | 10.0 kJ/m² | 4.76 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 | 30.0 J/cm² | 143 ft-lb/in² | ISO 179/1eU | ||
25.0 J/cm² @Temperature -30.0 °C |
119 ft-lb/in² @Temperature -22.0 °F |
ISO 179/1eU | |||
Charpy Impact, Notched | 0.900 J/cm² | 4.28 ft-lb/in² | ISO 179/1eA | ||
0.800 J/cm² @Temperature -30.0 °C |
3.81 ft-lb/in² @Temperature -22.0 °F |
ISO 179/1eA | |||
Electrical Properties | Metric | English | Comments | ||
Volume Resistivity | 1.00e+15 ohm-cm | 1.00e+15 ohm-cm | IEC 60093 | ||
Surface Resistance | >= 1.00e+15 ohm | >= 1.00e+15 ohm | IEC 60093 | ||
Dielectric Constant | 3.8 @Frequency 100 Hz |
3.8 @Frequency 100 Hz |
IEC 60250 | ||
3.8 @Frequency 1.00e+6 Hz |
3.8 @Frequency 1.00e+6 Hz |
IEC 60250 | |||
Thermal Properties | Metric | English | Comments | ||
CTE, linear, Parallel to Flow | 110 µm/m-°C | 61.1 µin/in-°F | ISO 11359-1/-2 | ||
CTE, linear, Transverse to Flow | 110 µm/m-°C | 61.1 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) | 165 °C | 329 °F | ISO 75-1/-2 | ||
Deflection Temperature at 1.8 MPa (264 psi) | 103 °C | 217 °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 | |||
De |
|||||
Additives | Lubricants | ||||
Release agent | |||||
Delivery form | Pellets | ||||
Emissions | <8 mg/kg | VDA 275 | |||
Part Marking Code | >POM< | ISO 11469 | |||
Processing | Injection Moulding | ||||
Other Extrusion | |||||
Profile Extrusion | |||||
Sheet Extrusion | |||||
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:
