Scallop shells are disposed more than 200,000 ton per year in Hokkaido. Here we report effective uses for discarded shells as an additive of plywood adhesive because some plywood adhesives emit formaldehyde that leads to limit on its use. We produced adhesive resin filling ground shell particles with a high specific surface area to reduce formaldehyde emission from plywood. Nano-sized scallop shell particles were prepared by planetary ball milling under dry condition and subsequent water addition. The emission amount of gaseous formaldehyde from plywood was then estimated. We found that the prepared adhesive including scallop shell nanoparticles exhibited an excellent inhibiting effect on the formaldehyde emission rather than the feed shell.
ホタテ貝殻の微粉化と合板用接着剤からのホルムアルデヒド放散量低減効果
JSPTJ_51_6_400_406
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