Polybutylene Terephthalate (PBT), Unreinforced, Molded

Gromax

产品说明：

Product Description: PBT unreinforced middle viscosity injection molding grade.

Characteristics:

• Excellent electrical property
• Excellent temperature resistance, high heat distortion temperature.
• Excellent mechanic and chemical property
• Excellent weatherability
• Excellent wear property
• Excellent moldability
• High resistance to fuels, oil, fats and many solvents

  Information provided by Gromax Enterprises Corp.

物性信息：

物理性能	额定值 (公制)	额定值 (英制)	测试方法
比重	1.30 - 1.32 g/cc	1.30 - 1.32 g/cc	ASTM D792
水分吸收	0.0600 % @Time 86400 sec	0.0600 % @Time 24.0 hour	ASTM D570
粘度测量	0.735 - 0.765	0.735 - 0.765	[dl/gr] Intrinsic; ASTM D2857
线性成型收缩率	0.012 - 0.018 cm/cm @Thickness 1.60 mm	0.012 - 0.018 in/in @Thickness 0.0630 in	ASTM D955
熔体流动速率	62 - 72 g/10 min @Load 2.16 kg, Temperature 235 °C	62 - 72 g/10 min @Load 4.76 lb, Temperature 455 °F	ASTM D1238

机械性能	额定值 (公制)	额定值 (英制)	测试方法
洛氏硬度（M 级）	85 - 90	85 - 90	ASTM D785
抗张强度	49.0 - 58.8 MPa	7110 - 8530 psi	ASTM D638
伸长率 (断裂)	>= 30 %	>= 30 %	ASTM D638
弯曲强度	80.0 - 90.0 MPa	11600 - 13100 psi	ASTM D790
弯曲模量	2.26 GPa	327 ksi	ASTM D790
悬壁梁缺口冲击强度	>= 0.392 J/cm @Thickness 6.35 mm	>= 0.735 ft-lb/in @Thickness 0.250 in	ASTM D256

电气性能	额定值 (公制)	额定值 (英制)	测试方法
体积电阻率	>= 1.00e+15 ohm-cm	>= 1.00e+15 ohm-cm	ASTM D257
表面电阻	>= 1.00e+13 ohm	>= 1.00e+13 ohm	ASTM D257
介电常数	3.3 @Frequency 60.0 Hz	3.3 @Frequency 60.0 Hz	ASTM D150
介电强度	>= 20.0 kV/mm @Thickness 2.00 mm	>= 508 kV/in @Thickness 0.0787 in	ASTM D149
耗散因数	0.0010 @Frequency 60.0 Hz	0.0010 @Frequency 60.0 Hz	ASTM D150
耐电弧性	120 sec	120 sec	ASTM D495

热性能	额定值 (公制)	额定值 (英制)	测试方法
线性热膨胀系数	90.0 μm/m-°C	50.0 μin/in-°F	ASTM D696
熔融温度	223 - 227 °C	433 - 441 °F	DSC
载荷下热变形温度(0.46 MPa)	155 °C	311 °F	ASTM D648
载荷下热变形温度(1.8 MPa)	60.0 °C	140 °F	ASTM D648
可燃性(UL94)	HB @Thickness 1.60 mm	HB @Thickness 0.0630 in

加工性能	额定值 (公制)	额定值 (英制)	测试方法
加工温度	230 - 260 °C	446 - 500 °F
射嘴温度	245 - 250 °C	473 - 482 °F
模具温度	30.0 - 100 °C	86.0 - 212 °F	suitable temperature 40-60°C
注射压力	50.0 - 100 MPa	7250 - 14500 psi
保压	30.0 - 70.0 MPa	4350 - 10200 psi
背压	0.000 - 0.300 MPa	0.000 - 43.5 psi
螺杆转速	60 - 120 rpm	60 - 120 rpm	to be chosen in such a way that plasticizing time is just within cooling time

材料描述		测试方法
Carboxyl End Groups	<25 meq/kg	Chang Chun
颜色	<2	b
	>85	L, Chang Chun
注射速率	middle