Interior train components having low smoke and low heat release, and methods of their manufacture
申请人:SABIC GLOBAL TECHNOLOGIES B.V.
公开号:US10196517B2
公开(公告)日:2019-02-05
Interior railway components (seat components and claddings) comprise a thermoplastic composition comprising: a first polymer comprising bisphenol A carbonate units and monoaryl arylate units, or a second polymer comprising bisphenol A carbonate units, monoaryl arylate units, and siloxane units, or a combination comprising at least one of the foregoing; and a polyetherimide; wherein a sample of the thermoplastic composition has: a smoke density after 4 minutes (Ds-4) of ≤150 measured in accordance with ISO 5659-2 on a 3 mm thick plaque, an integral of the smoke density as a function of time up to 4 minutes (VOF4)≤300 measured in accordance with ISO 5659-2, a maximum average heat release (MAHRE) of ≤300 90 kW/m2 measured in accordance with ISO 5660-1 on a 3 mm thick plaque, and a ductility in multiaxial impact of 80 to 100%, measured in accordance with ISO 6603.
铁路内部组件(座椅组件和包层)包括一种热塑性组合物,该组合物包括:由双酚A碳酸酯单元和单芳基丙烯酸酯单元组成的第一种聚合物,或由双酚A碳酸酯单元、单芳基丙烯酸酯单元和硅氧烷单元组成的第二种聚合物,或由上述至少一种单元组成的组合物;以及聚醚酰亚胺;其中该热塑性组合物的样品具有以下特性根据 ISO 5659-2,在 3 毫米厚的斑块上测量,4 分钟后的烟密度(Ds-4)≤150;根据 ISO 5659-2,测量烟密度随时间变化的积分(VOF4)≤300;根据 ISO 5660-1,在 3 毫米厚的斑块上测量,最大平均放热量(MAHRE)≤300 90 kW/m2;根据 ISO 6603,测量多轴冲击韧性为 80%至 100%。