轨道车辆用单组分聚氨酯发泡胶VOC散发及气味研究  

Study on VOC and Odor of One-component Polyurethane Foam Adhesive in Railway Vehicle

作　　者：李人哲 钟源 窦阿波 LI Renzhe;ZHONG Yuan;DOU Abo(CRRC Zhuzhou Locomotive Co.Ltd,State Key Laboratory of Heavy Duty AC Drive Electric Locomotive Systems Integration,Zhuzhou 412001,Hunan,China;Centre Testing International Group Co.Ltd,Shenzhen 518133,Guangdong,China)

机构地区：[1]中车株洲电力机车有限公司,大功率交流传动电力机车系统集成国家重点实验室,湖南株洲412001 [2]华测检测认证集团股份有限公司,广东深圳518133

出　　处：《聚氨酯工业》2020年第3期47-50,共4页Polyurethane Industry

摘　　要：以两款轨道车辆内饰用聚氨酯发泡胶样品中挥发性有机化合物(VOC)散发情况为研究对象,先通过重量法确定平衡阶段时间和散发特性,并用常规的袋式法对不同平衡时间的样品进行检测,获得聚氨酯发泡胶成型样品的散发特性,通过嗅阈值和阈稀释倍数对样品气味进行评价。结果表明,重量法和袋式法相结合可以实现对成型后聚氨酯发泡胶VOC散发情况的评估,并能得到聚氨酯发泡胶VOC主要贡献物质,通过嗅阈值和阈稀释倍数的换算实现对聚氨酯发泡胶气味的溯源和定性的评价方法,与常规的VDA270定性结果有很好的一致性。The VOC emission of two kinds of polyurethane foam adhesive in the interior of a railway vehicle was studied.The weight equilibrium time was obtained by weight method,then the VOC emission at different time was test by normal bag method.The odor of the sample was evaluated by olfactory threshold and threshold dilution.The results showed that the VOC emission of polyurethane foam adhesive could be evaluated and the main contribution substances could be found combined weight method and bag method.The odor traceability and evaluation of polyurethane foam adhesive were realized by conversion of olfactory threshold and threshold dilution,which showed good agreement with the result of VDA270.

关 键 词：聚氨酯发泡胶 挥发性有机化合物(VOC) 气味 嗅阈值 阈稀释倍数 

分 类 号：TQ323.8[化学工程—合成树脂塑料工业]