Emission and time-resolved migration rates of aromatic diamines from two flexible polyurethane foams.

ABSTRACT: Performing risk assessments (RA) on household use of flexible polyurethane (PU) foams requires access to reliable data about emission and migration of potential diamine impurities. A toluene diisocyanate (TDI) and a methylene diphenyl diisocyanate (MDI) based foam were thermally treated to enable measurements on samples with defined concentrations of the corresponding diamines, toluene diamine (TDA), and methylene dianiline (MDA). The thermally treated foams used for emission testing contained up to 15 mg.kg^-1 of TDA and 27 mg.kg^-1 of MDA. Those used for migration testing contained 5.1 mg.kg^-1 of TDA and 14.1 mg.kg^-1 of MDA. Stability of the thermally generated diamines was sufficient for testing over a 37-day period. Analytical techniques that d

SUBMITTER: Karlsson D 

PROVIDER: S-EPMC10210196 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature