出版物: 2019 年 6 月 12 日最近更新時間: 2025 年 3 月 11 日

凯柏胶宝®符合铁路标准

适用于铁路应用的阻燃热塑性弹性体

凯柏胶宝®新开发创新材料，以扩展其阻燃产品组合，除了满足 UL 94 V0 防火等级外，还符合铁路应用的 DIN 45545-2 标准。

凯柏胶宝®在开发具有无卤阻燃性能的热塑性弹性体 (TPE) 方面拥有丰富的经验。公司最近根据 UL 标准 94 V-0 的要求，开发出防火等级为 V-0 的第二产品系列，壁厚 1.5 毫米，可用于聚丙烯的多组分应用。该系列是市场上唯一符合 DIN 45545-2 标准的铁路应用 TPE 材料。根据危险等级 HL1-3 的分类，这种最大壁厚为 3 毫米的特别开发材料满足风险等级 R22 和 R23 的要求。这些标准表明这种 TPE 材料具有低烟雾密度和低毒性的特点。

第一批铁路应用开始启用：FR2 系列的 TPE 化合物用于制作电缆螺丝和螺栓。德国、马来西亚和美国的三个凯柏胶宝生产基地都在生产这种阻燃系列材料。

符合 UL94 V-0 标准的材料在发生火灾时可自熄，不会形成燃烧滴物。即使不使用卤化阻燃剂，这些材料也能满足这些要求。凯柏胶宝的材料符合 IEC 61249-2-21 标准对无卤素特性的要求。

如果发生火灾，这种材料特性意味着可以更好地保障员工安全，可以减少燃烧产生的烟雾，防止人员迷失方向，烟雾的毒性也更低。此外，不含氯和溴的阻燃剂可最大限度降低卤化物燃烧时产生的腐蚀性烟气对家具和建筑结构造成的潜在损坏风险。卤化物的腐蚀性甚至可能影响旧材料的特性和商业用途，比如回收二手车。

图片：

凯柏胶宝的 FR2 系列产品符合铁路标准 DIN 45545-2 的要求

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KRAIBURG TPE meets railway standards

Flame-retardant Thermoplastic Elastomers for railway applications

KRAIBURG TPE is expanding its flame-retardant product portfolio with innovative materials which, in addition to UL 94 V0, meet DIN 45545-2 for railway applications.

KRAIBURG TPE has extensive experience in the development of TPEs with halogen-free flame-retardant properties. A second product series with a V-0 nonflammability classification at wall thicknesses of 1.5mm in accordance with UL standard 94 V-0 has recently been introduced for multi-component applications with polypropylene.

This series is the only TPE material on the market that meets DIN EN 45545-2 for railway applications. The specially developed materials meet the requirements of R22 and R23 for hazard levels HL1-3 with a wall thickness of up to 3 mm.

UL94 V-0 listed materials are self-extinguishing in case of fire and do not form into burning droplets. The materials meet this requirement without the use of halogen-containing flame retardants. KRAIBURG TPE flame-retardant compounds comply with the IEC 61249-2-21 standard’s definition of halogen-free.

If a fire breaks out, this means more safety for people involved, as less disorientating smoke develops and the flue gas is less toxic. In addition, flame retardants that are free of chlorine and bromine minimize the potential risk of damage to furniture and the building fabric caused by corrosive flue gases that develop when halogenated substances are burnt. Furthermore, their corrosiveness can even have a negative impact on maintaining the properties of old materials and their commercial usability, for example when recycling disused railways. The specialized THERMOLAST® K materials meet these requirements even without halogenated flame-retardants being used.

The first railway applications have already been implemented: TPE compounds from the FR2 series are being used as sealing materials in cable glands and bushings. The materials of this flame-retardant series are produced at all three KRAIBURG TPE production sites in Germany, Malaysia and the USA.