汽车内装饰材料挥发性有机物GC-MS测定和分析

发布时间：2018-11-16 13:17

【摘要】：采用恒温测试箱法采集汽车内部装饰材料释放的挥发性有机物,利用Nutech预浓缩仪对样品进行三级VOC富集,然后用GC-MS法(气相色谱-质谱法)对汽车内部装饰材料释放的挥发性有机物苯、甲苯、二甲苯、乙苯、苯乙烯进行了测定,检出限低于2.0μg/m3。实验选择皮革表皮、橡胶密封条、灰色无纺布、海棉和仪表盘五种汽车内部装饰材料,进行挥发性有机物含量的测定,并对结果进行了分析和讨论。结果表明五种汽车内部装饰材料均不同程度地释放挥发性有机物,其中热塑性材料仪表盘释放出的TVOC含量最高,橡胶密封条的TVOC释放量也较高,皮革表皮和灰色无纺布释放的甲苯较多,而消音材料海绵主要释放出二甲苯。汽车内部装饰材料释放挥发性有机物的情况复杂,因此,探索和建立有效的汽车内部装饰材料有害物质检测方法,对于选择低毒环保的汽车内部装饰材料非常有意义。
[Abstract]:The volatile organic compounds released from automobile interior decoration materials were collected by the method of constant temperature test box, and the samples were enriched with VOC by Nutech preconcentration instrument. Then the volatile organic compounds (benzene, toluene, xylene, ethylbenzene, styrene) released from automobile interior decoration materials were determined by GC-MS (gas chromatography-mass spectrometry). The detection limit was less than 2.0 渭 g / m ~ (3). Five kinds of automotive interior decoration materials, leather skin, rubber seal, grey non-woven fabric, sponge and instrument panel, were selected to determine the content of volatile organic compounds, and the results were analyzed and discussed. The results showed that all of the five automotive interior decoration materials released volatile organic compounds to varying degrees, among which the thermoplastic material instrument panel released the highest amount of TVOC, and the TVOC release from rubber seal strips was also higher. More toluene was released from leather skin and grey non-woven fabric, while xylene was mainly released from silencing material sponge. The release of volatile organic compounds (VOCs) from automotive interior decoration materials is complex. Therefore, it is very significant to explore and establish effective detection methods for harmful substances in automobile interior decoration materials, which are low toxicity and environmental protection.
【作者单位】：深圳信息职业技术学院;深圳市高迪科技有限公司;
【基金】：深圳市科技计划项目(SZKJ0704)
【分类号】：X831

【参考文献】