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杜邦Tefzel® HT-2185氟聚合物树脂是一种特殊用途的树脂,可制成半透明的2.5-mm(0.1-in)颗粒。与其他等级的tefzel相比,它具有更高的流速。Tefzel® HT-2185和其他Tefzel含氟聚合物是乙烯和四氟乙烯的熔融加工改性共聚物。它们是高性能树脂,与氟碳树脂相比,可以以相对较高的速度加工。它们的机械强度很高,性能达到了很好的平衡。相对较高的流速Tefzel® HT-2185使其特别适用于高速加工,尤其适用于细长、薄壁或复杂形状的挤压涂层和注塑成型。由Tefzel® HT-2185制成的模压或挤压产品最好用于在高温下不涉及显著弯曲或拉伸应力的用途。更高粘度的产品,如tefzel ht-2181和tefzel ht-2183是这些应用的首选。由纯Tefzel® HT-2185制成的经过适当处理的产品对大多数溶剂和化学品都是惰性的,具有水解稳定性和耐候性。建议的最高工作温度为150°C(302°F);有用的性能保持在低温范围内。采用UL94方法,介电性能稳定,火焰等级为V-0。机械性能包括出色的冲击强度、穿透性和耐磨性。与火焰情况下的行为相关的声明或数据不旨在反映实际火灾条件下该材料或任何其他材料所带来的危险。典型的终端产品TEFZEL HT-2185是许多终端产品的理想选择,包括电气部件,如套管、线圈、插座、连接器和开关;实验室设备,如管道、阀门、容器和紧固件;需要化学惰性的电池或仪器部件;以及机械部件。 DuPont™ Tefzel® HT-2185 fluoropolymer resin is a special-purpose resin available in translucent, 2.5-mm (0.1-in) pellets. Compared with other grades of Tefzel®, it has a higher flow rate. Tefzel® HT-2185 and the other Tefzel® fluoropolymers are melt processible, modified copolymers of ethylene and tetrafluoroethylene. They are high-performance resins that can be processed at relatively high rates compared with fluorocarbon resins. They are mechanically tough and offer an excellent balance of properties. The relatively high flow rate of Tefzel® HT-2185 makes it uniquely suitable for high-speed processing, especially for extruded coatings and injection molding of slender, thin-walled, or intricate shapes. Molded or extruded products made from Tefzel® HT-2185 are preferred for uses that do not involve significant flexural or tensile stress at elevated temperatures. Higher viscosity products such as Tefzel® HT-2181 and Tefzel® HT-2183 are preferred for these applications. Properly processed products made from neat Tefzel® HT-2185 are inert to most solvents and chemicals, hydrolytically stable, and weather-resistant. The recommended upper service temperature is 150°C (302°F); useful properties are retained at cryogenic ranges. The level and stability of dielectric properties are excellent, and the flame rating is V-0 by the UL94 method. Mechanical properties include outstanding impact strength, cut-through, and abrasion resistance. Statements, or data, regarding behavior in a flame situation are not intended to reflect hazards presented by this or any other material when under actual fire conditions. Typical End Products Tefzel ® HT-2185 is ideal for many end products, including electrical components, such as sleeving, coil forms, sockets, connectors, and switches; lab ware, such as tubing, valves, containers, and fasteners; battery or instrument components that require chemical inertness; and mechanical parts. |
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 |
1.70 | g/cm³ | ASTM D792 |
表观密度 Apparent density |
1.30 | g/cm³ | 内部方法 |
熔体质量流动速率 Melt Flow Rate |
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297℃,5.0kg 297℃,5.0kg |
11 | g/10min | ASTM D3159 |
吸水率 Water absorption rate |
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24hr 24hr |
7.0E-3 | % | 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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23℃ 23℃ |
40.0 | MPa | ASTM D638 |
拉伸应变 Tensile strain |
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断裂,23℃ Fracture, 23 ℃ |
% | ASTM D638 | |
弯曲模量 Bending modulus |
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23℃ 23℃ |
MPa | ASTM D790 | |
压缩强度 compressive strength |
MPa | ASTM D695 | |
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 |
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23℃ 23℃ |
ASTM D256 | ||
热性能 THERMAL |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
熔融温度 Melting temperature |
℃ | ASTM D3418 | |
线性热膨胀系数 Linear coefficient of thermal expansion |
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MD:0~100℃ MD:0~100℃ |
1/℃ | ASTM D696 | |
最高使用温度 Maximum operating temperature |
℃ | UL 746 | |
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 |
ohms·cm | ASTM D257 | |
介电强度 Dielectric strength |
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0.25 mm 0.25 mm |
kV/mm | ASTM D149 | |
介电常数 Dielectric constant |
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23 ℃,1 MHz 23 ℃,1 MHz |
ASTM D1531 | ||
耗散因数 Dissipation factor |
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23℃,1 MHz 23℃,1 MHz |
ASTM D1531 | ||
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 | ||
极限氧指数 Extreme oxygen index |
% | ASTM D2863 |
备注 |
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1 一般属性:这些不能被视为规格。 |
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巴斯夫集团2017财年收益增幅明显 远超剖析师预期
2018-02-07 不计特殊项目的息税前收益预期将达到83亿欧元(同比上升32%) 息税前收益预期将达到85亿欧元(同比上升36%) 巴斯夫集团提前发布2017财年未经审核业绩数据:公司预期销售额、不计特殊项目的息税前收益和息税前收益都将显著高于去年水平,收益表现远超出分析师预期。 销售额上升12%,达到645亿欧元(2016年:576亿欧元),不计特殊项目的息税前收益预计将达到83亿欧元,同比 |
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