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无筋等级具有丰富的强度和柔韧性,具有很强的抗脆性。UL认证的慢燃(94HB)和自熄等级(94V-0,V-2)存在,所展示的电气性能是任何热塑性塑料中最高的。表现出低吸水性,即使在温度和湿度变化很大的情况下,在长时间的使用中仍保持良好的电性能(CTI和GWIT)。成型产品表面光滑,摩擦系数低,由于起泡量低,PBT适用于要求摩擦磨损性能的场合。该材料非常可靠,使用中的尺寸变化小,具有优异的成型稳定性和尺寸精度。长期的耐化学性是很特殊的,而且在室温下,之后的性能几乎没有退化。未加筋和加筋钢种都表现出优异的流动性和加工性。应用:VCD驱动框架连接器微调器开关按钮,用于燃气瞬时热水器继电器阻隔干燥器整流器外把手高度传感器外壳门镜保持驱动组件外壳节能灯。 Unreinforced grades have abundant strength and flexibility, and have strong characteristics against brittleness. UL-certified slow-burning(94HB) and self-extinguishing grades(94V-0,V-2) exist, and electrical properties exhibited are the highest of any thermoplastic. Low water absorption is exhibited, and excellent electrical properties(CTI and GWIT) are retained over extended periods of usages, even with widely varied temperature and humidity conditions. The surface of molded products is smooth, and a low coefficient of friction is exhibited.As the amount of froction is low, PBT is suitable for use in application requiring friction and wear properties. The material is exceptionally reliable, with small in-use dimensional variation, and superior molding stability and dimensional precision. Long-term chemical resistance is exceptional, and at room temperature, there is almost no degradation in properties after. Both unreinforced and reinforced grades exhibit exceptional flowability, and excellent processability. Application:VCD drive frames Connectors Trimmers Switch buttons for gas-fired instantaneous water heaters Relay blocks Driers Rectifiers Outer handles Height sensor cases Door mirror stays Drive component housings Energy saving lamp. |
技术参数 Technical Data | |||
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物理性能 PHYSICAL |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
密度 Density |
1.45 | g/cm³ | ASTM D792 |
收缩率 Shrinkage rate |
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MD MD |
0.60 到 1.1 | % | ASTM D955 |
吸水率 Water absorption rate |
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23℃,24hr 23℃,24hr |
0.070 | % | ASTM D570 |
机械性能 MECHANICAL |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
拉伸强度 tensile strength |
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屈服 yield |
90.0 | MPa | ASTM D638 |
弯曲模量 Bending modulus |
6000 | MPa | ASTM D790 |
弯曲强度 bending strength |
MPa | ASTM D790 | |
冲击性能 IMPACT |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
悬臂梁缺口冲击强度 Impact strength of cantilever beam notch |
kJ/m² | ASTM D256 | |
悬臂梁无缺口冲击强度 Notched impact strength of cantilever beam |
kJ/m² | ASTM D256 | |
热性能 THERMAL |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
热变形温度 Hot deformation temperature |
ASTM D648 | ||
0.45 MPa,未退火 0.45 MPa, unannealed |
℃ | ASTM D648 | |
1.8 MPa,未退火 1.8 MPa, unannealed |
℃ | ASTM D648 | |
电气性能 Electrical performance |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
体积电阻率 Volume resistivity |
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2 mm 2 mm |
ohms·cm | ASTM D257 | |
介电强度 Dielectric strength |
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2 mm 2 mm |
kV/mm | ASTM D149 | |
介电常数 Dielectric constant |
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50 Hz 50 Hz |
ASTM D150 | ||
耗散因数 Dissipation factor |
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50 Hz 50 Hz |
ASTM D150 | ||
阻燃性能 FLAME CHARACTERISTICS |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
阻燃等级 Flame retardant level |
UL 94 | ||
0.80 mm 0.80 mm |
UL 94 | ||
1.60 mm 1.60 mm |
UL 94 |
备注 |
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1 一般属性:这些不能被视为规格。 |
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