汽车内部部件中涂层热塑性聚弹性体的高挥发性有机化合物排放:塑料膨胀的重要性
Hyo Jeong Kim1, Chanul Jeong2, Arom Oh3
1Department of Polymer Engineering, Pukyong National University, Busan 48513, Republic of Korea.
Journal of hazardous materials
|September 30, 2023
概括
车中的挥发性有机化合物 (VOC) 是一个健康问题. 在TPEE等内部塑料上的涂层显著增加了VOC排放,原因是材料膨胀和限制挥发.
科学领域:
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
- 职业健康 职业健康 职业健康
背景情况:
- 车中的挥发性有机化合物 (VOC) 与健康问题有关,特别是在新车中.
- 车内塑料是汽车环境中挥发性有机化合物排放的重要来源.
研究的目的:
- 调查涂层热塑性聚弹性体 (TPEE) - - 一种常见的汽车内饰塑料 - - 增加VOC排放的原因.
- 量化涂料和材料特性对VOC释放的贡献.
主要方法:
- 在涂抹基于溶剂的原料和透明涂层到TPEE之前和之后分析VOC水平.
- 气色谱-质谱 (GC-MS) 用于识别和量化排放的VOCs.
- 接触角度和膨胀测量以评估材料与溶剂的相互作用.
- 烤实验以评估随时间推移的VOC减少.
主要成果:
- 涂层后,总VOC (TVOC) 含量增加了12.1倍 (2066 年至 24,983 μg m-3).
- 涂层溶液占TVOC的77.4%,主要是和.
- TPEE膨胀 (68.9%) 和减少溶剂挥发 (大约. 由于溶剂亲和力,观察到70%的阻断效应).
- 清洁的TPEE含有4.2%的潜在VOC,以重量计算.
结论:
- 涂层TPEE的增强VOC排放是由于材料膨胀,涂层限制挥发以及TPEE内固有的VOC造成的.
- 涂层溶剂和残留溶剂显著导致VOC水平升高.
- 了解这些因素对于减轻汽车内部的VOC至关重要.
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