The impact of air velocity and other various cure parameters on the release of 4-phenylcyclohexene (4-PCH) from carpet backed with carboxylated SBR latex

摘要

This research evaluated the effect of air velocity and other cure parameters, such as temperature and oven air recirculation, on the release of 4-Phenylcyclohexene from carpet samples coated with a composite XSBR latex. This kind of carpet is similar to that used in industries. The effect of latex frothing process on the reduction of 4-PCH from SBR latex samples was also investigated. It has been found that both air velocity and oven temperature were important cure parameters in 4-PCH reduction. Air velocity was the dominating factor in the removal of 4-PCH from carpet back-coated with latex composite. At oven temperature of 225°F, the content of 4-PCH of carpet samples can be reduced by 80% when it was exposed on an air velocity of 200 fpm. While the 4-PCH content can only reduced by 15% if it is not exposed to flowing air. Frothing process also had significant influence on the release of 4-PCH from XSBR latex.