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成品图片:
Physical Properties | Metric | English | Comments | ||
---|---|---|---|---|---|
Density | 1.36 g/cc | 0.0491 lb/in³ | |||
1.53 g/cc | 0.0553 lb/in³ | ISO 1183 | |||
Water Absorption | 0.35 % @Thickness 2.00 mm |
0.35 % @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 | 91150 cP @Shear Rate 5000 1/s, Temperature 260 °C |
91150 cP @Shear Rate 5000 1/s, Temperature 500 °F |
ISO 11403-1 -2 | ||
107900 cP @Shear Rate 5000 1/s, Temperature 250 °C |
107900 cP @Shear Rate 5000 1/s, Temperature 482 °F |
ISO 11403-1 -2 | |||
129480 cP @Shear Rate 5000 1/s, Temperature 240 °C |
129480 cP @Shear Rate 5000 1/s, Temperature 464 °F |
ISO 11403-1 -2 | |||
274700 cP @Shear Rate 500 1/s, Temperature 260 °C |
274700 cP @Shear Rate 500 1/s, Temperature 500 °F |
ISO 11403-1 -2 | |||
340700 cP @Shear Rate 500 1/s, Temperature 250 °C |
340700 cP @Shear Rate 500 1/s, Temperature 482 °F |
ISO 11403-1 -2 | |||
424600 cP @Shear Rate 500 1/s, Temperature 240 °C |
424600 cP @Shear Rate 500 1/s, Temperature 464 °F |
ISO 11403-1 -2 | |||
Viscosity Test | 100 cm³/g | 100 cm³/g | ISO 307 1157 1628 | ||
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 | ||
Melt Flow | 10 g/10 min | 10 g/10 min | ISO 1133 | ||
7.0 g/10 min @Load 2.16 kg, Temperature 250 °C |
7.0 g/10 min @Load 4.76 lb, Temperature 482 °F |
cm³/10min; ISO 1133 | |||
Mechanical Properties | Metric | English | Comments | ||
Tensile Strength at Break | 140 MPa | 20300 psi | ISO 527-1/-2 | ||
Tensile Stress | 8.08 MPa @Strain 0.250 %, Temperature 160 °C |
1170 psi @Strain 0.250 %, Temperature 320 °F |
ISO 11403-1 -2 | ||
22.5 MPa @Strain 0.250 %, Temperature 40.0 °C |
3260 psi @Strain 0.250 %, Temperature 104 °F |
ISO 11403-1 -2 | |||
24.9 MPa @Strain 0.250 %, Temperature 23.0 °C |
3610 psi @Strain 0.250 %, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
28.9 MPa @Strain 0.250 %, Temperature 0.000 °C |
4190 psi @Strain 0.250 %, Temperature 32.0 °F |
ISO 11403-1 -2 | |||
30.0 MPa @Strain 0.250 %, Temperature -20.0 °C |
4350 psi @Strain 0.250 %, Temperature -4.00 °F |
ISO 11403-1 -2 | |||
30.7 MPa @Strain 0.250 %, Temperature -40.0 °C |
4450 psi @Strain 0.250 %, Temperature -40.0 °F |
ISO 11403-1 -2 | |||
30.7 MPa @Strain 1.50 %, Temperature 160 °C |
4450 psi @Strain 1.50 %, Temperature 320 °F |
ISO 11403-1 -2 | |||
41.3 MPa @Strain 3.00 %, Temperature 160 °C |
5990 psi @Strain 3.00 %, Temperature 320 °F |
ISO 11403-1 -2 | |||
91.7 MPa @Strain 1.50 %, Temperature 40.0 °C |
13300 psi @Strain 1.50 %, Temperature 104 °F |
ISO 11403-1 -2 | |||
114 MPa @Strain 3.00 %, Temperature 40.0 °C |
16500 psi @Strain 3.00 %, Temperature 104 °F |
ISO 11403-1 -2 | |||
122 MPa @Strain 1.50 %, Temperature 23.0 °C |
17700 psi @Strain 1.50 %, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
138 MPa @Strain 1.50 %, Temperature 0.000 °C |
20000 psi @Strain 1.50 %, Temperature 32.0 °F |
ISO 11403-1 -2 | |||
149 MPa @Strain 1.50 %, Temperature -20.0 °C |
21600 psi @Strain 1.50 %, Temperature -4.00 °F |
ISO 11403-1 -2 | |||
159 MPa @Strain 1.50 %, Temperature -40.0 °C |
23100 psi @Strain 1.50 %, Temperature -40.0 °F |
ISO 11403-1 -2 | |||
10.0 MPa @Strain 0.175 %, Time 3.60e+7 sec |
1450 psi @Strain 0.175 %, Time 10000 hour |
isochronous; ISO 11403-1 -2 | |||
10.0 MPa @Strain 0.126 %, Time 36000 sec |
1450 psi @Strain 0.126 %, Time 10.0 hour |
isochronous; ISO 11403-1 -2 | |||
10.0 MPa @Strain 0.115 %, Time 3600 sec |
1450 psi @Strain 0.115 %, Time 1.00 hour |
isochronous; ISO 11403-1 -2 | |||
10.0 MPa @Strain 0.142 %, Time 360000 sec |
1450 psi @Strain 0.142 %, Time 100 hour |
isochronous; ISO 11403-1 -2 | |||
10.0 MPa @Strain 0.159 %, Time 3.60e+6 sec |
1450 psi @Strain 0.159 %, Time 1000 hour |
isochronous; ISO 11403-1 -2 | |||
40.0 MPa @Strain 0.603 %, Time 360000 sec |
5800 psi @Strain 0.603 %, Time 100 hour |
isochronous; ISO 11403-1 -2 | |||
50.0 MPa @Strain 0.889 %, Time 3.60e+6 sec |
7250 psi @Strain 0.889 %, Time 1000 hour |
isochronous; ISO 11403-1 -2 | |||
50.0 MPa @Strain 0.682 %, Time 36000 sec |
7250 psi @Strain 0.682 %, Time 10.0 hour |
isochronous; ISO 11403-1 -2 | |||
50.0 MPa @Strain 1.02 %, Time 3.60e+7 sec |
7250 psi @Strain 1.02 %, Time 10000 hour |
isochronous; ISO 11403-1 -2 | |||
60.0 MPa @Strain 0.768 %, Time 3600 sec |
8700 psi @Strain 0.768 %, Time 1.00 hour |
isochronous; ISO 11403-1 -2 | |||
80.0 MPa @Strain 1.53 %, Time 360000 sec |
11600 psi @Strain 1.53 %, Time 100 hour |
isochronous; ISO 11403-1 -2 | |||
Elongation at Break | 2.7 % | 2.7 % | ISO 527-1/-2 | ||
Tensile Modulus | 10.0 GPa | 1450 ksi | ISO 527-1/-2 | ||
3.59 GPa @Temperature 150 °C |
520 ksi @Temperature 302 °F |
ISO 11403-1 -2 | |||
4.20 GPa @Temperature 90.0 °C |
610 ksi @Temperature 194 °F |
Dynamic; ISO 11403-1 -2 | |||
4.78 GPa @Temperature 90.0 °C |
693 ksi @Temperature 194 °F |
ISO 11403-1 -2 | |||
7.65 GPa @Temperature 40.0 °C |
1110 ksi @Temperature 104 °F |
ISO 11403-1 -2 | |||
10.5 GPa @Temperature -40.0 °C |
1520 ksi @Temperature -40.0 °F |
Dynamic; ISO 11403-1 -2 | |||
10.66 GPa @Temperature -40.0 °C |
1546 ksi @Temperature -40.0 °F |
ISO 11403-1 -2 | |||
Flexural Strength | 200 MPa | 29000 psi | ISO 178 | ||
Flexural Modulus | 9.00 GPa | 1310 ksi | ISO 178 | ||
Shear Modulus | 0.550 GPa @Temperature 160 °C |
79.8 ksi @Temperature 320 °F |
Dynamic; ISO 11403-1 -2 | ||
0.696 GPa @Temperature 120 °C |
101 ksi @Temperature 248 °F |
Dynamic; ISO 11403-1 -2 | |||
1.00 GPa @Temperature 70.0 °C |
145 ksi @Temperature 158 °F |
Dynamic; ISO 11403-1 -2 | |||
1.94 GPa @Temperature 20.0 °C |
281 ksi @Temperature 68.0 °F |
Dynamic; ISO 11403-1 -2 | |||
2.09 GPa @Temperature -20.0 °C |
303 ksi @Temperature -4.00 °F |
Dynamic; ISO 11403-1 -2 | |||
2.21 GPa @Temperature -50.0 °C |
321 ksi @Temperature -58.0 °F |
Dynamic; ISO 11403-1 -2 | |||
Secant Modulus | 1.82 GPa @Strain 3.50 %, Temperature 100 °C |
264 ksi @Strain 3.50 %, Temperature 212 °F |
ISO 11403-1 -2 | ||
1.99 GPa @Strain 3.50 %, Temperature 80.0 °C |
289 ksi @Strain 3.50 %, Temperature 176 °F |
ISO 11403-1 -2 | |||
2.95 GPa @Strain 1.50 %, Temperature 100 °C |
428 ksi @Strain 1.50 %, Temperature 212 °F |
ISO 11403-1 -2 | |||
3.29 GPa @Strain 3.50 %, Temperature 40.0 °C |
477 ksi @Strain 3.50 %, Temperature 104 °F |
ISO 11403-1 -2 | |||
3.30 GPa @Strain 1.50 %, Temperature 80.0 °C |
479 ksi @Strain 1.50 %, Temperature 176 °F |
ISO 11403-1 -2 | |||
4.44 GPa @Strain 0.250 %, Temperature 100 °C |
644 ksi @Strain 0.250 %, Temperature 212 °F |
ISO 11403-1 -2 | |||
4.84 GPa @Strain 0.250 %, Temperature 80.0 °C |
702 ksi @Strain 0.250 %, Temperature 176 °F |
ISO 11403-1 -2 | |||
6.11 GPa @Strain 1.50 %, Temperature 40.0 °C |
887 ksi @Strain 1.50 %, Temperature 104 °F |
ISO 11403-1 -2 | |||
8.13 GPa @Strain 1.50 %, Temperature 23.0 °C |
1180 ksi @Strain 1.50 %, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
9.00 GPa @Strain 0.250 %, Temperature 40.0 °C |
1310 ksi @Strain 0.250 %, Temperature 104 °F |
ISO 11403-1 -2 | |||
9.20 GPa @Strain 1.50 %, Temperature 0.000 °C |
1330 ksi @Strain 1.50 %, Temperature 32.0 °F |
ISO 11403-1 -2 | |||
9.93 GPa @Strain 1.50 %, Temperature -20.0 °C |
1440 ksi @Strain 1.50 %, Temperature -4.00 °F |
ISO 11403-1 -2 | |||
9.96 GPa @Strain 0.250 %, Temperature 23.0 °C |
1440 ksi @Strain 0.250 %, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
10.6 GPa @Strain 1.50 %, Temperature -40.0 °C |
1540 ksi @Strain 1.50 %, Temperature -40.0 °F |
ISO 11403-1 -2 | |||
11.56 GPa @Strain 0.250 %, Temperature 0.000 °C |
1677 ksi @Strain 0.250 %, Temperature 32.0 °F |
ISO 11403-1 -2 | |||
12.0 GPa @Strain 0.250 %, Temperature -20.0 °C |
1740 ksi @Strain 0.250 %, Temperature -4.00 °F |
ISO 11403-1 -2 | |||
12.28 GPa @Strain 0.250 %, Temperature -40.0 °C |
1781 ksi @Strain 0.250 %, Temperature -40.0 °F |
ISO 11403-1 -2 | |||
Izod Impact, Notched (ISO) | 11.0 kJ/m² | 5.23 ft-lb/in² | ISO 180/1A | ||
10.0 kJ/m² @Temperature -30.0 °C |
4.76 ft-lb/in² @Temperature -22.0 °F |
ISO 180/1A | |||
10.0 kJ/m² @Temperature -40.0 °C |
4.76 ft-lb/in² @Temperature -40.0 °F |
ISO 180/1A | |||
Izod Impact, Unnotched (ISO) | 60.0 kJ/m² | 28.6 ft-lb/in² | ISO 180/1U | ||
55.0 kJ/m² @Temperature -30.0 °C |
26.2 ft-lb/in² @Temperature -22.0 °F |
ISO 180/1U | |||
55.0 kJ/m² @Temperature -40.0 °C |
26.2 ft-lb/in² @Temperature -40.0 °F |
ISO 180/1U | |||
Charpy Impact Unnotched | 7.00 J/cm² | 33.3 ft-lb/in² | ISO 179/1eU | ||
7.50 J/cm² @Temperature -30.0 °C |
35.7 ft-lb/in² @Temperature -22.0 °F |
ISO 179/1eU | |||
7.50 J/cm² @Temperature -40.0 °C |
35.7 ft-lb/in² @Temperature -40.0 °F |
ISO 179/1eU | |||
Charpy Impact, Notched | 1.10 J/cm² | 5.23 ft-lb/in² | ISO 179/1eA | ||
1.00 J/cm² @Temperature -40.0 °C |
4.76 ft-lb/in² @Temperature -40.0 °F |
ISO 179/1eA | |||
1.10 J/cm² @Temperature -30.0 °C |
5.23 ft-lb/in² @Temperature -22.0 °F |
ISO 179/1eA | |||
Tensile Creep Modulus, 1 hour | 2500 MPa @Pressure 35.0 MPa, Temperature 120 °C |
363000 psi @Pressure 5080 psi, Temperature 248 °F |
ISO 11403-1 -2 | ||
2520 MPa @Pressure 30.0 MPa, Temperature 120 °C |
365000 psi @Pressure 4350 psi, Temperature 248 °F |
ISO 11403-1 -2 | |||
2540 MPa @Pressure 25.0 MPa, Temperature 120 °C |
368000 psi @Pressure 3630 psi, Temperature 248 °F |
ISO 11403-1 -2 | |||
2560 MPa @Pressure 20.0 MPa, Temperature 120 °C |
372000 psi @Pressure 2900 psi, Temperature 248 °F |
ISO 11403-1 -2 | |||
2590 MPa @Pressure 15.0 MPa, Temperature 120 °C |
375000 psi @Pressure 2180 psi, Temperature 248 °F |
ISO 11403-1 -2 | |||
2600 MPa @Pressure 10.0 MPa, Temperature 120 °C |
378000 psi @Pressure 1450 psi, Temperature 248 °F |
ISO 11403-1 -2 | |||
2620 MPa @Pressure 5.00 MPa, Temperature 120 °C |
379000 psi @Pressure 725 psi, Temperature 248 °F |
ISO 11403-1 -2 | |||
7270 MPa @Pressure 80.0 MPa, Temperature 23.0 °C |
1.05e+6 psi @Pressure 11600 psi, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
7518.8 MPa @Pressure 70.0 MPa, Temperature 23.0 °C |
1.0905e+6 psi @Pressure 10200 psi, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
7812.5 MPa @Pressure 60.0 MPa, Temperature 23.0 °C |
1.1331e+6 psi @Pressure 8700 psi, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
8120 MPa @Pressure 50.0 MPa, Temperature 23.0 °C |
1.18e+6 psi @Pressure 7250 psi, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
8460 MPa @Pressure 40.0 MPa, Temperature 23.0 °C |
1.23e+6 psi @Pressure 5800 psi, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
8700 MPa @Pressure 10.0 MPa, Temperature 23.0 °C |
1.26e+6 psi @Pressure 1450 psi, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
8740 MPa @Pressure 30.0 MPa, Temperature 23.0 °C |
1.27e+6 psi @Pressure 4350 psi, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
8800 MPa @Pressure 20.0 MPa, Temperature 23.0 °C |
1.28e+6 psi @Pressure 2900 psi, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
9000 MPa @Time 3600 sec |
1.31e+6 psi @Time 1.00 hour |
ISO 899-1 | |||
Tensile Creep Modulus, 1000 hours | 1720 MPa @Pressure 50.0 MPa, Temperature 90.0 °C |
249000 psi @Pressure 7250 psi, Temperature 194 °F |
ISO 11403-1 -2 | ||
1940 MPa @Pressure 40.0 MPa, Temperature 90.0 °C |
282000 psi @Pressure 5800 psi, Temperature 194 °F |
ISO 11403-1 -2 | |||
2130 MPa @Pressure 35.0 MPa, Temperature 120 °C |
310000 psi @Pressure 5080 psi, Temperature 248 °F |
ISO 11403-1 -2 | |||
2150 MPa @Pressure 30.0 MPa, Temperature 120 °C |
312000 psi @Pressure 4350 psi, Temperature 248 °F |
ISO 11403-1 -2 | |||
2170 MPa @Pressure 25.0 MPa, Temperature 120 °C |
314000 psi @Pressure 3630 psi, Temperature 248 °F |
ISO 11403-1 -2 | |||
2190 MPa @Pressure 20.0 MPa, Temperature 120 °C |
317000 psi @Pressure 2900 psi, Temperature 248 °F |
ISO 11403-1 -2 | |||
2210 MPa @Pressure 15.0 MPa, Temperature 120 °C |
320000 psi @Pressure 2180 psi, Temperature 248 °F |
ISO 11403-1 -2 | |||
2220 MPa @Pressure 10.0 MPa, Temperature 120 °C |
322000 psi @Pressure 1450 psi, Temperature 248 °F |
ISO 11403-1 -2 | |||
2230 MPa @Pressure 5.00 MPa, Temperature 120 °C |
324000 psi @Pressure 725 psi, Temperature 248 °F |
ISO 11403-1 -2 | |||
2270 MPa @Pressure 30.0 MPa, Temperature 90.0 °C |
329000 psi @Pressure 4350 psi, Temperature 194 °F |
ISO 11403-1 -2 | |||
2720 MPa @Pressure 20.0 MPa, Temperature 90.0 °C |
394000 psi @Pressure 2900 psi, Temperature 194 °F |
ISO 11403-1 -2 | |||
3460 MPa @Pressure 10.0 MPa, Temperature 90.0 °C |
502000 psi @Pressure 1450 psi, Temperature 194 °F |
ISO 11403-1 -2 | |||
4260 MPa @Pressure 80.0 MPa, Temperature 23.0 °C |
617000 psi @Pressure 11600 psi, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
4860 MPa @Pressure 70.0 MPa, Temperature 23.0 °C |
705000 psi @Pressure 10200 psi, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
5310 MPa @Pressure 60.0 MPa, Temperature 23.0 °C |
770000 psi @Pressure 8700 psi, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
5624.3 MPa @Pressure 50.0 MPa, Temperature 23.0 °C |
815740 psi @Pressure 7250 psi, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
5910 MPa @Pressure 40.0 MPa, Temperature 23.0 °C |
858000 psi @Pressure 5800 psi, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
6120 MPa @Pressure 30.0 MPa, Temperature 23.0 °C |
887000 psi @Pressure 4350 psi, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
6190 MPa @Pressure 20.0 MPa, Temperature 23.0 °C |
898000 psi @Pressure 2900 psi, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
6290 MPa @Pressure 10.0 MPa, Temperature 23.0 °C |
912000 psi @Pressure 1450 psi, Temperature 73.4 °F |
ISO 11403-1 -2 | |||
6600 MPa @Time 3.60e+6 sec |
957000 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 | 3.8 @Frequency 1.00e+6 Hz |
3.8 @Frequency 1.00e+6 Hz |
IEC 60250 | ||
4.4 @Frequency 100 Hz |
4.4 @Frequency 100 Hz |
IEC 60250 | |||
Dielectric Strength | 31.0 kV/mm | 787 kV/in | IEC 60243-1 | ||
Dissipation Factor | 0.0020 @Frequency 1000 Hz |
0.0020 @Frequency 1000 Hz |
ASTM D150 | ||
0.0025 @Frequency 100 Hz |
0.0025 @Frequency 100 Hz |
IEC 60250 | |||
0.018 @Frequency 1.00e+6 Hz |
0.018 @Frequency 1.00e+6 Hz |
IEC 60250 | |||
0.018 @Frequency 1.00e+6 Hz |
0.018 @Frequency 1.00e+6 Hz |
ASTM D150 | |||
Comparative Tracking Index | 450 V | 450 V | IEC 60112 | ||
Thermal Properties | Metric | English | Comments | ||
CTE, linear, Parallel to Flow | 30.0 µm/m-°C | 16.7 µin/in-°F | ISO 11359-1/-2 | ||
CTE, linear, Transverse to Flow | 90.0 µm/m-°C | 50.0 µin/in-°F | ISO 11359-1/-2 | ||
Specific Heat Capacity | 1.73 J/g-°C | 0.413 BTU/lb-°F | |||
Thermal Conductivity | 0.280 W/m-K | 1.94 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) | 205 °C | 401 °F | ISO 75-1/-2 | ||
Vicat Softening Point | 215 °C | 419 °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 | 41 mm/min @Thickness 1.00 mm |
1.6 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 | ||||
Fogging | 99% | ISO 6452; F-value (refraction) | |||
Part Marking Code | >PBT-GF30< | ISO 11469 | |||
Processing | Injection Moulding | ||||
Other Extrusion | |||||
Profile Extrusion | |||||
Regional Availability | Asia Pacific | ||||
Europe | |||||
Global | |||||
Near East/Africa | |||||
North America | |||||
South and Central America | |||||
Resin Identification | PBT-GF30 | ||||
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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