ホルムアルデヒド放散量の少ない反応性塗材の開発

抄録

There is concern about the so-called sick house syndrome, a set of adverse health effects thought to be caused by chemicals emitted from building materials etc. Currently, Japan's Ministry of Health, Labour and Welfare regulates in-building concentration levels of 13 chemical substances that cause indoor air pollution. One of these substances is formaldehyde. Coating materials in general undergo some type of hardening reaction, and depending on the type of hardening reaction, there may be a side reaction that produces trace amounts of formaldehyde. A study was made of the reduction of formaldehyde emission from a reactive coating material used for building floors. The precise measurement of trace emissions of formaldehyde has been a major issue in the development of coating materials and the determination of their fbrmulations. As reported in this paper, a model experiment devised for measuring formaldehyde emissions led to an improvement in the accuracy of this measurement, this measurement method was used in an L₁₈ orthogonal array study of the formulation of the coating material, and a formulation that complied with the formaldehyde emission guideline was found.