文献类型：期刊文献

英文题名：Odor Investigation in Polyurethane Automotive Steering Wheels for Malodor Minimization

作者：Guang, Wei[1];Gu, Jiaying[1];Deng, Weijun[2];Hu, Jing[3]

机构：[1]Shanghai Inst Technol, Fac Flavour Fragrance & Cosmet, Shanghai 201418, Peoples R China;[2]Shanghai Inst Technol, Fac Chem Engn & Energy Technol, Shanghai 201418, Peoples R China;[3]East China Univ Sci & Technol, Sch Chem Engn, Shanghai 200237, Peoples R China

年份：2026

卷号：65

期号：15

起止页码：7794

外文期刊名：INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH

收录：;EI(收录号：20261720573575);WOS:【SCI-EXPANDED(收录号:WOS:001736571700001)】；

基金：This work was supported by the National Natural Science Foundation of China (22278268 and 22478246).

语种：英文

外文关键词：Automobile steering equipment - Automotive industry - Drug products - Foam control - Mass spectrometry - Odor control - Odor removal - Rigid foamed plastics - Wheels

摘要：Polyurethane foam materials used for various indoor applications must meet increasingly stringent odor standards. However, the origins of odorants as well as their evolutions are not known. Here, technical findings of polyurethane foam odorant investigation from a project with a global company, an advanced supplier for the automotive industry, are presented. Important odorants and very important odorants along with key odorants were systematically detected and analyzed with multiple analytical approaches combining sensory evaluation and thermal desorption-gas chromatography-mass spectrometry-olfactometry. The data reveal that the polyurethane foam of steering wheels has 37 key odorants, and out of them, 22 are important odorants and 8 are very important odorants. Parallelly, odorant analysis demonstrates that the processes of foaming-curing, coloring, and coating contribute significantly to the number and intensity of odorants, while devolatilization leads to a variety of decreases/increases in individual odorants. Given that malodorants are of major concern, their sources were identified, and elimination solutions were recommended. These results have successfully helped the partner in controLling product odor. This comprehensive investigation of odorants not only provides a valuable case study for chemical suppliers but also offers insights for the rational control of polyurethane foam production.