Physical Properties | Metric | English | Comments | ||
---|---|---|---|---|---|
Density | 1.42 g/cc | 0.0513 lb/in³ | ISO 1183 | ||
Water Absorption | 1.2 % @Thickness 2.00 mm |
1.2 % @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 | 138000 cP @Shear Rate 5000 1/s, Temperature 230 °C |
138000 cP @Shear Rate 5000 1/s, Temperature 446 °F |
ISO 11403-1 -2 | ||
147000 cP @Shear Rate 5000 1/s, Temperature 215 °C |
147000 cP @Shear Rate 5000 1/s, Temperature 419 °F |
ISO 11403-1 -2 | |||
157000 cP @Shear Rate 5000 1/s, Temperature 200 °C |
157000 cP @Shear Rate 5000 1/s, Temperature 392 °F |
ISO 11403-1 -2 | |||
649000 cP @Shear Rate 500 1/s, Temperature 230 °C |
649000 cP @Shear Rate 500 1/s, Temperature 446 °F |
ISO 11403-1 -2 | |||
723000 cP @Shear Rate 500 1/s, Temperature 215 °C |
723000 cP @Shear Rate 500 1/s, Temperature 419 °F |
ISO 11403-1 -2 | |||
804000 cP @Shear Rate 500 1/s, Temperature 200 °C |
804000 cP @Shear Rate 500 1/s, Temperature 392 °F |
ISO 11403-1 -2 | |||
Linear Mold Shrinkage, Flow | 0.021 cm/cm | 0.021 in/in | ISO 294-4 2577 | ||
Linear Mold Shrinkage, Transverse | 0.019 cm/cm | 0.019 in/in | ISO 294-4 2577 | ||
Melt Flow | 1.9 g/10 min @Load 2.16 kg, Temperature 190 °C |
1.9 g/10 min @Load 4.76 lb, Temperature 374 °F |
cm³/10min; ISO 1133 | ||
2.4 g/10 min @Load 2.16 kg, Temperature 190 °C |
2.4 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 | 10.0 MPa @Strain 1.00 %, Temperature 90.0 °C |
1450 psi @Strain 1.00 %, Temperature 194 °F |
ISO 11403-1 -2 | ||
27.0 MPa @Strain 4.20 %, Temperature 90.0 °C |
3920 psi @Strain 4.20 %, Temperature 194 °F |
ISO 11403-1 -2 | |||
32.5 MPa @Strain 7.30 %, Temperature 90.0 °C |
4710 psi @Strain 7.30 %, Temperature 194 °F |
ISO 11403-1 -2 | |||
33.4 MPa @Strain 10.4 %, Temperature 90.0 °C |
4840 psi @Strain 10.4 %, Temperature 194 °F |
ISO 11403-1 -2 | |||
33.9 MPa @Strain 1.40 %, Temperature 23.0 °C |
4920 psi @Strain 1.40 %, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
35.9 MPa @Strain 1.90 %, Temperature 40.0 °C |
5210 psi @Strain 1.90 %, Temperature 104 °F |
ISO 11403-1 -2 | |||
50.1 MPa @Strain 2.20 %, Temperature 0.000 °C |
7270 psi @Strain 2.20 %, Temperature 32.0 °F |
ISO 11403-1 -2 | |||
55.0 MPa @Strain 2.10 %, Temperature -40.0 °C |
7980 psi @Strain 2.10 %, Temperature -40.0 °F |
ISO 11403-1 -2 | |||
57.1 MPa @Strain 7.70 %, Temperature 40.0 °C |
8280 psi @Strain 7.70 %, Temperature 104 °F |
ISO 11403-1 -2 | |||
59.8 MPa @Strain 2.60 %, Temperature -20.0 °C |
8670 psi @Strain 2.60 %, Temperature -4.00 °F |
ISO 11403-1 -2 | |||
60.1 MPa @Strain 13.4 %, Temperature 40.0 °C |
8720 psi @Strain 13.4 %, Temperature 104 °F |
ISO 11403-1 -2 | |||
60.8 MPa @Strain 5.40 %, Temperature 23.0 °C |
8820 psi @Strain 5.40 %, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
66.0 MPa @Strain 9.50 %, Temperature 23.0 °C |
9570 psi @Strain 9.50 %, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
67.3 MPa @Strain 13.6 %, Temperature 23.0 °C |
9760 psi @Strain 13.6 %, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
73.2 MPa @Strain 8.80 %, Temperature 0.000 °C |
10600 psi @Strain 8.80 %, Temperature 32.0 °F |
ISO 11403-1 -2 | |||
76.1 MPa @Strain 15.4 %, Temperature 0.000 °C |
11000 psi @Strain 15.4 %, Temperature 32.0 °F |
ISO 11403-1 -2 | |||
77.1 MPa @Strain 21.4 %, Temperature 0.000 °C |
11200 psi @Strain 21.4 %, Temperature 32.0 °F |
ISO 11403-1 -2 | |||
81.4 MPa @Strain 10.4 %, Temperature -20.0 °C |
11800 psi @Strain 10.4 %, Temperature -4.00 °F |
ISO 11403-1 -2 | |||
84.5 MPa @Strain 18.2 %, Temperature -20.0 °C |
12300 psi @Strain 18.2 %, Temperature -4.00 °F |
ISO 11403-1 -2 | |||
85.3 MPa @Strain 26.0 %, Temperature -20.0 °C |
12400 psi @Strain 26.0 %, Temperature -4.00 °F |
ISO 11403-1 -2 | |||
96.0 MPa @Strain 12.6 %, Temperature -40.0 °C |
13900 psi @Strain 12.6 %, Temperature -40.0 °F |
ISO 11403-1 -2 | |||
97.9 MPa @Strain 25.1 %, Temperature -40.0 °C |
14200 psi @Strain 25.1 %, Temperature -40.0 °F |
ISO 11403-1 -2 | |||
98.8 MPa @Strain 37.7 %, Temperature -40.0 °C |
14300 psi @Strain 37.7 %, Temperature -40.0 °F |
ISO 11403-1 -2 | |||
Tensile Strength, Yield | 70.0 MPa | 10200 psi | ISO 527-1/-2 | ||
Elongation at Break | 45 % | 45 % | Nominal; ISO 527-1/-2 | ||
Elongation at Yield | 23 % | 23 % | ISO 527-1/-2 | ||
Tensile Modulus | 3.00 GPa | 435 ksi | ISO 527-1/-2 | ||
Flexural Modulus | 2.70 GPa | 392 ksi | ISO 178 | ||
Shear Modulus | 0.2165 GPa @Temperature 120 °C |
31.40 ksi @Temperature 248 °F |
Dynamic; ISO 11403-1 -2 | ||
0.4832 GPa @Temperature 70.0 °C |
70.08 ksi @Temperature 158 °F |
Dynamic; ISO 11403-1 -2 | |||
0.8266 GPa @Temperature 20.0 °C |
119.9 ksi @Temperature 68.0 °F |
Dynamic; ISO 11403-1 -2 | |||
0.980 GPa @Temperature -20.0 °C |
142 ksi @Temperature -4.00 °F |
Dynamic; ISO 11403-1 -2 | |||
1.1339 GPa @Temperature -50.0 °C |
164.46 ksi @Temperature -58.0 °F |
Dynamic; ISO 11403-1 -2 | |||
Secant Modulus | 0.31978 GPa @Strain 9.10 %, Temperature 100 °C |
46.381 ksi @Strain 9.10 %, Temperature 212 °F |
ISO 11403-1 -2 | ||
0.335836 GPa @Strain 29.3 %, Temperature -40.0 °C |
48.7097 ksi @Strain 29.3 %, Temperature -40.0 °F |
ISO 11403-1 -2 | |||
0.37551 GPa @Strain 9.80 %, Temperature 80.0 °C |
54.464 ksi @Strain 9.80 %, Temperature 176 °F |
ISO 11403-1 -2 | |||
0.391558 GPa @Strain 15.4 %, Temperature 40.0 °C |
56.7916 ksi @Strain 15.4 %, Temperature 104 °F |
ISO 11403-1 -2 | |||
0.408173 GPa @Strain 20.8 %, Temperature -20.0 °C |
59.2014 ksi @Strain 20.8 %, Temperature -4.00 °F |
ISO 11403-1 -2 | |||
0.434659 GPa @Strain 17.6 %, Temperature 0.000 °C |
63.0429 ksi @Strain 17.6 %, Temperature 32.0 °F |
ISO 11403-1 -2 | |||
0.520 GPa @Strain 4.50 %, Temperature 100 °C |
75.4 ksi @Strain 4.50 %, Temperature 212 °F |
ISO 11403-1 -2 | |||
0.611009 GPa @Strain 10.9 %, Temperature 23.0 °C |
88.6207 ksi @Strain 10.9 %, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
0.638776 GPa @Strain 4.90 %, Temperature 80.0 °C |
92.6481 ksi @Strain 4.90 %, Temperature 176 °F |
ISO 11403-1 -2 | |||
0.741558 GPa @Strain 7.70 %, Temperature 40.0 °C |
107.556 ksi @Strain 7.70 %, Temperature 104 °F |
ISO 11403-1 -2 | |||
0.761905 GPa @Strain 12.6 %, Temperature -40.0 °C |
110.507 ksi @Strain 12.6 %, Temperature -40.0 °F |
ISO 11403-1 -2 | |||
0.782692 GPa @Strain 10.4 %, Temperature -20.0 °C |
113.522 ksi @Strain 10.4 %, Temperature -4.00 °F |
ISO 11403-1 -2 | |||
0.827273 GPa @Strain 1.10 %, Temperature 100 °C |
119.988 ksi @Strain 1.10 %, Temperature 212 °F |
ISO 11403-1 -2 | |||
0.831818 GPa @Strain 8.80 %, Temperature 0.000 °C |
120.647 ksi @Strain 8.80 %, Temperature 32.0 °F |
ISO 11403-1 -2 | |||
1.05 GPa @Strain 1.20 %, Temperature 80.0 °C |
152 ksi @Strain 1.20 %, Temperature 176 °F |
ISO 11403-1 -2 | |||
1.12593 GPa @Strain 5.40 %, Temperature 23.0 °C |
163.305 ksi @Strain 5.40 %, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
1.88947 GPa @Strain 1.90 %, Temperature 40.0 °C |
274.049 ksi @Strain 1.90 %, Temperature 104 °F |
ISO 11403-1 -2 | |||
2.27727 GPa @Strain 2.20 %, Temperature 0.000 °C |
330.295 ksi @Strain 2.20 %, Temperature 32.0 °F |
ISO 11403-1 -2 | |||
2.30 GPa @Strain 2.60 %, Temperature -20.0 °C |
334 ksi @Strain 2.60 %, Temperature -4.00 °F |
ISO 11403-1 -2 | |||
2.42143 GPa @Strain 1.40 %, Temperature 23.0 °C |
351.204 ksi @Strain 1.40 %, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
2.61905 GPa @Strain 2.10 %, Temperature -40.0 °C |
379.867 ksi @Strain 2.10 %, Temperature -40.0 °F |
ISO 11403-1 -2 | |||
Izod Impact, Notched (ISO) | 13.0 kJ/m² | 6.19 ft-lb/in² | ISO 180/1A | ||
11.0 kJ/m² @Temperature -40.0 °C |
5.23 ft-lb/in² @Temperature -40.0 °F |
ISO 180/1A | |||
Charpy Impact Unnotched | 40.0 J/cm² | 190 ft-lb/in² | ISO 179/1eU | ||
35.0 J/cm² @Temperature -30.0 °C |
167 ft-lb/in² @Temperature -22.0 °F |
ISO 179/1eU | |||
Charpy Impact, Notched | 1.50 J/cm² | 7.14 ft-lb/in² | ISO 179/1eA | ||
1.10 J/cm² @Temperature -30.0 °C |
5.23 ft-lb/in² @Temperature -22.0 °F |
ISO 179/1eA | |||
Electrical Properties | Metric | English | Comments | ||
Volume Resistivity | 1.00e+13 ohm-cm | 1.00e+13 ohm-cm | IEC 60093 | ||
Dielectric Constant | 3.4 @Frequency 1.00e+6 Hz |
3.4 @Frequency 1.00e+6 Hz |
IEC 60250 | ||
3.5 @Frequency 100 Hz |
3.5 @Frequency 100 Hz |
IEC 60250 | |||
Comparative Tracking Index | 600 V | 600 V | IEC 60112 | ||
Thermal Properties | Metric | English | Comments | ||
CTE, linear, Parallel to Flow | 120 µm/m-°C | 66.7 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) | 160 °C | 320 °F | ISO 75-1/-2 | ||
Deflection Temperature at 1.8 MPa (264 psi) | 93.0 °C | 199 °F | ISO 75-1/-2 | ||
Vicat Softening Point | 160 °C | 320 °F | 50°C/h 50N; ISO 306 | ||
Flammability, UL94 | HB @Thickness 0.800 mm |
HB @Thickness 0.0315 in |
IEC 60695-11-10 | ||
De |
|||||
Additives | Lubricants | ||||
Release agent | |||||
Delivery form | Pellets | ||||
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 | |||
Special characteristics | Light stabilised or stable to light | ||||
U.V. stabilised or stable to weather | |||||
UL recognition | 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:
