文摘
This paper focuses on emissions of 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate (TMPD-MIB) from two latex paints applied to three substrates (aluminum, gypsum board, and concrete). The first 48 h of each experiment involved small chamber testing. Specimens were then maintained in an office environment with intermittent rotation into chambers. Emission rates were observed for periods as long as 15 months, but were relatively low after 150 h. Airborne recoveries of TMPD-MIB were a strong function of the type of paint and substrate. Recoveries in air of approximately 50 % (semi-gloss paint) to 90 % (flat paint) were observed after 15 months for regular applications to gypsum board, but were less than 25 % after 8–15 months for applications to concrete. TMPD-MIB was recovered in the dried paint film and substrate (in the case of gypsum board) with 96±6 % mass closure.
