PBT B 2550 PBT 、_产品资讯

PBT B 2550 PBT是最坚韧的工程热塑材料之一，它是半结晶材料，有非常好的化学稳定性、机械强度、电绝缘特性和热稳定性。这些材料在很广的环境条件下都有很好的稳定性。PBT吸湿特性很弱。非增强型PBT的张力强度为50MPa，玻璃添加剂型的PBT张力强度为170MPa。玻璃添加剂过多将导致材料变脆。

原料颗粒图：

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物性表：

Physical Properties	Metric	English	Comments

Density	1.30 g/cc	0.0470 lb/in³	ISO 1183
Water Absorption	0.50 %	0.50 %	ISO 62
Moisture Absorption at Equilibrium	0.25 %	0.25 %	23°C/50% R.H.; ISO 62
Viscosity Test	107 cm³/g	107 cm³/g	Viscosity number
Linear Mold Shrinkage, Flow	0.015 cm/cm	0.015 in/in
	0.016 cm/cm	0.016 in/in	60x60x2mm; ISO 294
Linear Mold Shrinkage, Transverse	0.015 cm/cm	0.015 in/in
	0.019 cm/cm	0.019 in/in	60x60x2mm; ISO 294
Melt Flow	52 g/10 min @Load 2.16 kg, Temperature 250 °C	52 g/10 min @Load 4.76 lb, Temperature 482 °F	ISO 1133

Mechanical Properties	Metric	English	Comments
Ball Indentation Hardness	130 MPa	18900 psi	ISO 2039-1
Tensile Strength at Break	57.0 MPa	8270 psi	5mm/min; ISO 527-2
Tensile Strength, Yield	57.0 MPa	8270 psi	50mm/min; ISO 527-2
Elongation at Break	35 %	35 %	50mm/min; ISO 527-2
Elongation at Yield	3.7 %	3.7 %	50mm/min; ISO 527-2
Modulus of Elasticity	2.50 GPa	363 ksi	ISO 527-2
Charpy Impact Unnotched	25.0 J/cm²	119 ft-lb/in²	ISO 179/1eU
Charpy Impact, Notched	0.600 J/cm²	2.86 ft-lb/in²	ISO 179/1eA
Dart Drop, Total Energy	100 J	73.8 ft-lb	ISO 6603-1
Tensile Creep Modulus, 1000 hours	1100 MPa	160000 psi	ISO 899-1

Electrical Properties	Metric	English	Comments
Volume Resistivity	1.00e+16 ohm-cm	1.00e+16 ohm-cm	IEC 93
Surface Resistance	1.00e+13 ohm	1.00e+13 ohm	IEC 93
Dielectric Constant	3.3 @Frequency 100 Hz	3.3 @Frequency 100 Hz	IEC 250
	3.3 @Frequency 1.00e+6 Hz	3.3 @Frequency 1.00e+6 Hz	IEC 250
Dielectric Strength	40.0 kV/mm	1020 kV/in	IEC 243/1
Dissipation Factor	0.0013 @Frequency 100 Hz	0.0013 @Frequency 100 Hz	IEC 250
	0.020 @Frequency 1.00e+6 Hz	0.020 @Frequency 1.00e+6 Hz	IEC 250
Comparative Tracking Index	450 V	450 V	Test Liquid B; IEC 112
	500 V	500 V	Test liquid A; IEC 112

Thermal Properties	Metric	English	Comments
CTE, linear	13.0 - 16.0 µm/m-°C @Temperature 23.0 - 80.0 °C	7.22 - 8.89 µin/in-°F @Temperature 73.4 - 176 °F	DIN 53752
Specific Heat Capacity	1.50 J/g-°C	0.359 BTU/lb-°F	Melt; IEC 1006
Thermal Conductivity	0.270 W/m-K	1.87 BTU-in/hr-ft²-°F	Melt; DIN 52612
Melting Point	220 - 225 °C	428 - 437 °F	ISO 11357-3
Maximum Service Temperature, Air	120 °C	248 °F	at 50% loss of tensile strength after 20000h; IEC 216-1
	140 °C	284 °F	at 50% loss of tensile strength after 5000h; IEC 216-1
	200 °C	392 °F
Deflection Temperature at 0.46 MPa (66 psi)	165 °C	329 °F	ISO 75-2
Deflection Temperature at 1.8 MPa (264 psi)	65.0 °C	149 °F	ISO 75-2
Flammability, UL94	HB @Thickness 1.60 mm	HB @Thickness 0.0630 in
	HB @Thickness 0.800 mm	HB @Thickness 0.0315 in

Processing Properties	Metric	English	Comments
Melt Temperature	245 - 270 °C	473 - 518 °F	Injection molding
	230 - 290 °C	446 - 554 °F	Coating
	260 °C	500 °F	for shrinkage test
Mold Temperature	40.0 - 70.0 °C	104 - 158 °F	Ejection temperature
	60.0 °C	140 °F	for shrinkage test

Descriptive Properties
Color	Natural
Commercial Status	North America and Europe
FDA	21 CFR 177.1660
Form	Pellets
Impact Modified	No
Primary Processing Technique	Injection Molding and Coating
Processing	Coating
	Film Extrusion
	Injection Molding
	Other Extrusion
Special characteristic	Heat stabilized or stable to heat
	Light stabilized or stable to light
	U.V. stabilized or stable to weather
UL.UL-C	Yes

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