LANXESS：高压连接器的新型无卤素，耐火PBT化合物

In the powertrain or battery of electric vehicles, as well as in the charging infrastructure of electromobility, plastic components are often exposed to high temperatures along with very strong currents and high voltages. Plastic connectors, for example, must remain electrically insulating under these conditions and must not allow tracking to occur. For these high-voltage connectors, LANXESS has tailored a new PBT (polybutylene terephthalate) compound that is halogen-free flame-retardant and hydrolysis-stabilized. “One strength of the structural material is that its outstanding electrical properties are hardly dependent on temperature and moisture in the typical operating conditions of high-voltage connectors. It can be used at temperatures of up to 150 °C,” explains Dr. Bernhard Helbich, Technical Marketing Manager Key Accounts at LANXESS’ High Performance Materials business unit.

Highest insulation class CTI A 600

The compound is a first representative of the new Pocan BFN HR product range and is characterized by a high level of volume resistance and dielectric strength. For example, the latter is well over 30 kilovolts per millimeter at temperatures of up to 140 °C (IEC 62431-1). In the CTI test (Comparative Tracking Index, IEC 60112), the material achieves CTI A 600, the highest class possible according to the standard. This makes it highly tracking-resistant, which reduces the risk of short circuits and defects caused by creepage currents and caters to the growing need for miniaturized connectors. “But it can also be used at voltages higher than 600 V. The connector design for direct current systems can be optimized for up to 1,500 V in accordance with the design guidelines of the standard IEC 60664 / VDE 0110-1,” says Helbich. The tracking resistance of the compound also hardly diminishes after long-term thermal aging at 120 °C or after climate testing.

耐水和阻燃

The material, which is reinforced with 25 percent by weight of glass fibers, is very stable to hydrolysis. In specimen tests based on the stringent SAE/USCAR-2 Rev. 6 long-term hydrolysis tests of the US Society of Automotive Engineers (SAE), it achieved Class 3 – a good rating. Its good flame-retardant properties are demonstrated by the fact that it passed the UL 94 flammability test of the US testing institute Underwriters Laboratories Inc. with the excellent classification V-0 with a test specimen thickness of 0.75 millimeters. With its mechanical properties, the structural material meets the common requirements that are set for high-voltage connectors.

鲜艳的色彩和永久颜色稳定

该化合物也可以以鲜艳的色彩（例如橙色）颜色。这种颜色越来越多地用于电动汽车中，以识别现场塑料构成的组件。赫尔比奇解释说：“我们的材料和使用的着色剂在高工作温度下保持永久性稳定性，因此识别不会丢失。”LANXESS希望将热塑性塑料列在黄牌上的“所有颜色”下。赫尔比奇解释说：“这样一来，如果它们要自己为塑料上色，我们将从耗时的UL认证过程中保存处理器。”他补充说：“他们可以简单地使用我们有色的化合物，从而降低成本。”

除了高压连接器之外，Helbich还看到了新的Pocan BFN HR产品范围在电动性和微型电动电气组件的制造中的更多可能应用：块和其他类似的应用程序。”他说。

牛 - 为客户带来回报的服务

LANXESS通过全面的种值服务为零部件的制造商提供电动性。这些包括包括针对组件设计的特定客户材料优化和联合概念开发。专业化学品公司的专家使用最新的计算欧洲杯线上买球机辅助工程（CAE）方法来欧洲杯体彩竞猜计算组件的机械和热性能。可以在公司的部分测试中心进行完成的零件测试。欧洲杯体彩竞猜LANXESS专家还可以在系列制作开始期间提供建议和支持。

More detailed information about LANXESS’ product portfolio for electromobility can be found at//www.kiwlau.com/en/Products-and-Solutions/Focus-Topics/LANXESS-e-Mobility.

Lanxess的所有新闻发布有关K 2022的发布//www.kiwlau.com/K2022/Press.