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Physical Properties | Metric | English | Comments | ||
---|---|---|---|---|---|
Density | 1.26 g/cc | 0.0455 lb/in³ | |||
1.45 g/cc | 0.0524 lb/in³ | ISO 1183 | |||
Water Absorption | 0.40 % @Thickness 2.00 mm |
0.40 % @Thickness 0.0787 in |
Sim. to ISO 62 | ||
Moisture Absorption | 0.150 % @Thickness 2.00 mm |
0.150 % @Thickness 0.0787 in |
Sim. to ISO 62 | ||
Viscosity | 80120 cP @Shear Rate 5000 1/s, Temperature 260 °C |
80120 cP @Shear Rate 5000 1/s, Temperature 500 °F |
ISO 11403-1 -2 | ||
94280 cP @Shear Rate 5000 1/s, Temperature 250 °C |
94280 cP @Shear Rate 5000 1/s, Temperature 482 °F |
ISO 11403-1 -2 | |||
112300 cP @Shear Rate 5000 1/s, Temperature 240 °C |
112300 cP @Shear Rate 5000 1/s, Temperature 464 °F |
ISO 11403-1 -2 | |||
238200 cP @Shear Rate 500 1/s, Temperature 260 °C |
238200 cP @Shear Rate 500 1/s, Temperature 500 °F |
ISO 11403-1 -2 | |||
293100 cP @Shear Rate 500 1/s, Temperature 250 °C |
293100 cP @Shear Rate 500 1/s, Temperature 482 °F |
ISO 11403-1 -2 | |||
362400 cP @Shear Rate 500 1/s, Temperature 240 °C |
362400 cP @Shear Rate 500 1/s, Temperature 464 °F |
ISO 11403-1 -2 | |||
Linear Mold Shrinkage, Flow | 0.0030 cm/cm | 0.0030 in/in | ISO 294-4 2577 | ||
Linear Mold Shrinkage, Transverse | 0.011 cm/cm | 0.011 in/in | ISO 294-4 2577 | ||
Mechanical Properties | Metric | English | Comments | ||
Tensile Strength at Break | 125 MPa | 18100 psi | ISO 527-1/-2 | ||
Tensile Stress | 21.6 MPa @Strain 0.300 %, Temperature 23.0 °C |
3130 psi @Strain 0.300 %, Temperature 73.4 °F |
ISO 11403-1 -2 | ||
73.5 MPa @Strain 1.20 %, Temperature 23.0 °C |
10700 psi @Strain 1.20 %, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
105 MPa @Strain 2.10 %, Temperature 23.0 °C |
15200 psi @Strain 2.10 %, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
115 MPa @Strain 3.30 %, Temperature 23.0 °C |
16700 psi @Strain 3.30 %, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
10.0 MPa @Strain 0.152 %, Time 36000 sec |
1450 psi @Strain 0.152 %, Time 10.0 hour |
isochronous; ISO 11403-1 -2 | |||
10.0 MPa @Strain 0.179 %, Time 3.60e+6 sec |
1450 psi @Strain 0.179 %, Time 1000 hour |
isochronous; ISO 11403-1 -2 | |||
20.0 MPa @Strain 0.286 %, Time 3600 sec |
2900 psi @Strain 0.286 %, Time 1.00 hour |
isochronous; ISO 11403-1 -2 | |||
30.0 MPa @Strain 0.510 %, Time 360000 sec |
4350 psi @Strain 0.510 %, Time 100 hour |
isochronous; ISO 11403-1 -2 | |||
50.0 MPa @Strain 0.975 %, Time 3.60e+6 sec |
7250 psi @Strain 0.975 %, Time 1000 hour |
isochronous; ISO 11403-1 -2 | |||
50.0 MPa @Strain 0.785 %, Time 36000 sec |
7250 psi @Strain 0.785 %, Time 10.0 hour |
isochronous; ISO 11403-1 -2 | |||
50.0 MPa @Strain 0.745 %, Time 3600 sec |
7250 psi @Strain 0.745 %, Time 1.00 hour |
isochronous; ISO 11403-1 -2 | |||
60.0 MPa @Strain 1.09 %, Time 360000 sec |
8700 psi @Strain 1.09 %, Time 100 hour |
isochronous; ISO 11403-1 -2 | |||
Elongation at Break | 3.2 % | 3.2 % | ISO 527-1/-2 | ||
Tensile Modulus | 7.40 GPa | 1070 ksi | ISO 527-1/-2 | ||
2.20 GPa @Temperature 150 °C |
319 ksi @Temperature 302 °F |
ISO 11403-1 -2 | |||
3.684 GPa @Temperature 60.0 °C |
534.3 ksi @Temperature 140 °F |
ISO 11403-1 -2 | |||
7.35 GPa @Temperature -20.0 °C |
1070 ksi @Temperature -4.00 °F |
ISO 11403-1 -2 | |||
Flexural Strength | 180 MPa | 26100 psi | ISO 178 | ||
Flexural Modulus | 6.20 GPa | 899 ksi | ISO 178 | ||
Shear Modulus | 0.365 GPa @Temperature 160 °C |
52.9 ksi @Temperature 320 °F |
Dynamic; ISO 11403-1 -2 | ||
0.471 GPa @Temperature 120 °C |
68.3 ksi @Temperature 248 °F |
Dynamic; ISO 11403-1 -2 | |||
0.704 GPa @Temperature 70.0 °C |
102 ksi @Temperature 158 °F |
Dynamic; ISO 11403-1 -2 | |||
1.54 GPa @Temperature 20.0 °C |
223 ksi @Temperature 68.0 °F |
Dynamic; ISO 11403-1 -2 | |||
1.66 GPa @Temperature -20.0 °C |
241 ksi @Temperature -4.00 °F |
Dynamic; ISO 11403-1 -2 | |||
1.77 GPa @Temperature -50.0 °C |
257 ksi @Temperature -58.0 °F |
Dynamic; ISO 11403-1 -2 | |||
Secant Modulus | 4.625 GPa @Strain 2.40 %, Temperature 23.0 °C |
670.8 ksi @Strain 2.40 %, Temperature 73.4 °F |
ISO 11403-1 -2 | ||
6.125 GPa @Strain 1.20 %, Temperature 23.0 °C |
888.4 ksi @Strain 1.20 %, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
7.20 GPa @Strain 0.300 %, Temperature 23.0 °C |
1040 ksi @Strain 0.300 %, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
Izod Impact, Notched (ISO) | 9.00 kJ/m² | 4.28 ft-lb/in² | ISO 180/1A | ||
8.00 kJ/m² @Temperature -30.0 °C |
3.81 ft-lb/in² @Temperature -22.0 °F |
ISO 180/1A | |||
Izod Impact, Unnotched (ISO) | 60.0 kJ/m² | 28.6 ft-lb/in² | ISO 180/1U | ||
60.0 kJ/m² @Temperature -30.0 °C |
28.6 ft-lb/in² @Temperature -22.0 °F |
ISO 180/1U | |||
Charpy Impact Unnotched | 6.00 J/cm² | 28.6 ft-lb/in² | ISO 179/1eU | ||
5.50 J/cm² @Temperature -30.0 °C |
26.2 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 | ||
0.900 J/cm² @Temperature -30.0 °C |
4.28 ft-lb/in² @Temperature -22.0 °F |
ISO 179/1eA | |||
Tensile Creep Modulus, 1 hour | 3090 MPa @Pressure 50.0 MPa, Temperature 60.0 °C |
448000 psi @Pressure 7250 psi, Temperature 140 °F |
ISO 11403-1 -2 | ||
3090 MPa @Pressure 40.0 MPa, Temperature 60.0 °C |
448000 psi @Pressure 5800 psi, Temperature 140 °F |
ISO 11403-1 -2 | |||
3100 MPa @Pressure 30.0 MPa, Temperature 60.0 °C |
450000 psi @Pressure 4350 psi, Temperature 140 °F |
ISO 11403-1 -2 | |||
3110 MPa @Pressure 20.0 MPa, Temperature 60.0 °C |
451000 psi @Pressure 2900 psi, Temperature 140 °F |
ISO 11403-1 -2 | |||
3119.7 MPa @Pressure 10.0 MPa, Temperature 60.0 °C |
452480 psi @Pressure 1450 psi, Temperature 140 °F |
ISO 11403-1 -2 | |||
6060 MPa @Pressure 80.0 MPa, Temperature 23.0 °C |
879000 psi @Pressure 11600 psi, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
6310 MPa @Pressure 70.0 MPa, Temperature 23.0 °C |
915000 psi @Pressure 10200 psi, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
6540 MPa @Pressure 60.0 MPa, Temperature 23.0 °C |
949000 psi @Pressure 8700 psi, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
6710 MPa @Pressure 50.0 MPa, Temperature 23.0 °C |
973000 psi @Pressure 7250 psi, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
6840 MPa @Pressure 40.0 MPa, Temperature 23.0 °C |
992000 psi @Pressure 5800 psi, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
6970.9 MPa @Pressure 10.0 MPa, Temperature 23.0 °C |
1.0110e+6 psi @Pressure 1450 psi, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
6980 MPa @Pressure 30.0 MPa, Temperature 23.0 °C |
1.01e+6 psi @Pressure 4350 psi, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
6990 MPa @Pressure 20.0 MPa, Temperature 23.0 °C |
1.01e+6 psi @Pressure 2900 psi, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
7200 MPa @Time 3600 sec |
1.04e+6 psi @Time 1.00 hour |
ISO 899-1 | |||
Tensile Creep Modulus, 1000 hours | 2480 MPa @Pressure 50.0 MPa, Temperature 60.0 °C |
359000 psi @Pressure 7250 psi, Temperature 140 °F |
ISO 11403-1 -2 | ||
2480 MPa @Pressure 40.0 MPa, Temperature 60.0 °C |
360000 psi @Pressure 5800 psi, Temperature 140 °F |
ISO 11403-1 -2 | |||
2480 MPa @Pressure 30.0 MPa, Temperature 60.0 °C |
360000 psi @Pressure 4350 psi, Temperature 140 °F |
ISO 11403-1 -2 | |||
2490 MPa @Pressure 20.0 MPa, Temperature 60.0 °C |
361000 psi @Pressure 2900 psi, Temperature 140 °F |
ISO 11403-1 -2 | |||
2500 MPa @Pressure 10.0 MPa, Temperature 60.0 °C |
362000 psi @Pressure 1450 psi, Temperature 140 °F |
ISO 11403-1 -2 | |||
3940 MPa @Pressure 80.0 MPa, Temperature 23.0 °C |
572000 psi @Pressure 11600 psi, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
4490 MPa @Pressure 70.0 MPa, Temperature 23.0 °C |
651000 psi @Pressure 10200 psi, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
4880 MPa @Pressure 60.0 MPa, Temperature 23.0 °C |
708000 psi @Pressure 8700 psi, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
5130 MPa @Pressure 50.0 MPa, Temperature 23.0 °C |
744000 psi @Pressure 7250 psi, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
5320 MPa @Pressure 40.0 MPa, Temperature 23.0 °C |
771000 psi @Pressure 5800 psi, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
5460 MPa @Pressure 30.0 MPa, Temperature 23.0 °C |
792000 psi @Pressure 4350 psi, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
5560 MPa @Pressure 20.0 MPa, Temperature 23.0 °C |
806000 psi @Pressure 2900 psi, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
5590 MPa @Pressure 10.0 MPa, Temperature 23.0 °C |
810000 psi @Pressure 1450 psi, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
5600 MPa @Time 3.60e+6 sec |
812000 psi @Time 1000 hour |
ISO 899-1 | |||
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 | 3.6 @Frequency 1.00e+6 Hz |
3.6 @Frequency 1.00e+6 Hz |
IEC 60250 | ||
4.2 @Frequency 100 Hz |
4.2 @Frequency 100 Hz |
IEC 60250 | |||
Dielectric Strength | 29.0 kV/mm | 737 kV/in | IEC 60243-1 | ||
Dissipation Factor | 0.0021 @Frequency 100 Hz |
0.0021 @Frequency 100 Hz |
IEC 60250 | ||
0.019 @Frequency 1.00e+6 Hz |
0.019 @Frequency 1.00e+6 Hz |
IEC 60250 | |||
Comparative Tracking Index | 400 V | 400 V | IEC 60112 | ||
Thermal Properties | Metric | English | Comments | ||
CTE, linear, Parallel to Flow | 40.0 µm/m-°C | 22.2 µin/in-°F | ISO 11359-1/-2 | ||
CTE, linear, Transverse to Flow | 100 µm/m-°C | 55.6 µin/in-°F | ISO 11359-1/-2 | ||
Specific Heat Capacity | 1.86 J/g-°C | 0.445 BTU/lb-°F | |||
Thermal Conductivity | 0.250 W/m-K | 1.74 BTU-in/hr-ft²-°F | of melt | ||
Melting Point | 225 °C | 437 °F | 10°C/min; ISO 11357-1/-3 | ||
Deflection Temperature at 0.46 MPa (66 psi) | 220 °C | 428 °F | ISO 75-1/-2 | ||
Deflection Temperature at 1.8 MPa (264 psi) | 204 °C | 399 °F | ISO 75-1/-2 | ||
Vicat Softening Point | 210 °C | 410 °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 | |||
Flame Spread | 28 mm/min @Thickness 1.00 mm |
1.1 in/min @Thickness 0.0394 in |
ISO 3795 (FMVSS 302) | ||
Oxygen Index | 19 % | 19 % | ISO 4589-1/-2 | ||
De |
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Additives | Release agent | ||||
Delivery form | Pellets | ||||
Emission of organic compounds | 140 µgC/g | VDA 277 | |||
Odour | class 3 | VDA 270 | |||
Part Marking Code | >PBT-GF20< | ISO 11469 | |||
Processing | Injection Moulding | ||||
Regional Availability | Asia Pacific | ||||
Europe | |||||
Global | |||||
Near East/Africa | |||||
North America | |||||
South and Central America | |||||
Resin Identification | PBT-GF20 | ||||
UL recognition | UL |
聚对苯二甲酸丁二醇酯,英文名polybutylene terephthalate(简称PBT),属于聚酯系列,是由1.4-pbt丁二醇(1.4-Butylene glycol)与对苯二甲酸(TPA)或者对苯二甲酸酯(DMT)聚缩合而成,并经由混炼程序制成的乳白色半透明到不透明、结晶型热塑性聚酯树脂。与PET一起统称为热塑性聚酯,或饱和聚酯。
⒈优良的机械性能,机械强度高,耐疲劳性和尺寸稳定好。蠕变也小,这些性能在高温条件下也极少有变化。
⒉生产PBT所消耗的能量是工程塑料中最低的的,这对于世界范围内能源紧缺的情况下,具有十分重要的意义。
⒊耐热老化性优异,增强后的UL温度指数达到120~140℃,此外,户外长期老化性也很好。
⒋耐溶剂好,无应力开裂。
⒌PBT易于阻燃,可达UL94V-0级,由于与阻燃剂亲和性能好,所以容易开发反应型或添加型的阻燃品级。阻燃产品在电子电器工业中获得广泛应用。
⒍PBT遇水易分解,在高温、高湿环境下使用需谨慎。
⒎优良的电气性能,体积电阻率及介电强度高,耐电弧性优良,吸湿性极小,在潮湿及高温环境下,也能保持电性能稳定,是制造电子、电器零件的理想材料。
⒏易成型加工和二次加工,易用普通设备注塑或挤塑。由于结晶速度快,流动性好,模具温度也比其他工程材料要求低,在加工薄壁制件时仅需几秒钟,对大部件也只需40-60s即可。
PBT中文名称聚对苯二甲酸丁酯,简称饱和聚酯,系高结晶性热可塑性塑料。
优点:1、机械性质安定抗张强度与抗张模数和尼龙相似;2、摩擦系数小有自润性;
3、吸水率低;4、电气性质优良;5、尺寸安定性良好;6、耐药品性、耐油性极佳。
用途:1、电子电器:无熔线断电器、电磁开关、驰返变压器、家电把手、连接器、外壳等;
2、汽车:车门把手、保险杆、分电盘盖、挡泥板、导线护壳、轮圈盖等;
3、工业零件:OA风扇、键盘、钓具卷线器、零件、灯罩等。
特点:PBT为乳白色半透明到不透明、结晶型热塑性聚酯。具有高耐热性、韧性、耐疲劳性,自润滑、低摩擦系数,耐候性、吸水率低,仅为0.1%,在潮湿环境中仍保持各种物性(包括电性能),电绝缘性,但介电损耗大。耐热水、碱类、酸类、油类、但易受卤化烃侵蚀,耐水解性差,低温下可迅速结晶,成型性良好。PBT 结晶速度快,最适宜加工方法为注塑,其他方法还有挤出、吹塑、涂覆和各种二次加工成型,成型前需预干燥,水分含量要降至0.02%。PBT(增强、改性PBT)主要用于汽车、电子电器、工业机械和聚合物合金、共混工业。如作为汽车中的分配器、车体部件、点火器线圈骨架、绝缘盖、排气系统零部件、摩托车点火器、电子电器工业中如电视机的偏转线圈,显像管和电位器支架,伴音输出变压器骨架,适配器骨架,开关接插件、电风扇、电冰箱、洗衣机电机端盖、轴套.
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