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Analysis of Formaldehyde Scavenger and its Reaction Products in POM
ISSN: 0148-7191, e-ISSN: 2688-3627
To be published on April 06, 2021 by SAE International in United States
Event: SAE WCX Digital Summit
To meet indoor air quality guideline of newly manufactured vehicle in Korea, China and other countries, low formaldehyde grade POM(Polyoxymethylene) is used for interior parts essentially. In this paper, formaldehyde scavengers from of 2 commercial low formaldehyde grade POM pellets were identified by LC-MS(Liquid chromatograph-Mass sprctrometer) as sebacic dihydrazide and dodecanedioic dihydrazide respectively. The reaction products between formaldehyde and formaldehyde scavengers were also detected, which were converted hydrazide to hydrazone. So, this kind of additive is gradually consumed by repetitive molding process or exposure to heat according to formaldehyde emission increase. We are expecting to apply this analytical method and result for quality control and benchmark of low formaldehyde grade POM. Key Word : POM, Formaldehyde scavenger, Hydrazide, LC/MS, Polymer additive, Mass spectrometry