Mechanical nano-grinding and polymorphic control of shell particles as an adsorbent for gaseous volatile organic compounds

北海道每年处理的扇贝壳超过20万吨。提出了废弃贝壳的有效利用和简单应用。研究了一种在干燥条件下加水的行星球磨法制备壳状纳米颗粒的工艺。考察了机械研磨后加水对磨壳比表面积和粒度的影响。水的加入使地壳颗粒溶解，得到纳米级的地壳。我们已经证明扇贝壳有潜力作为气态挥发性有机化合物的吸附剂、纳米颗粒稳定乳液的乳化剂和胶合板粘合剂的添加剂。

Scallop shells are disposed more than 200,000 ton per year in Hokkaido. We proposed effective uses and simple application for discarded shells. A production technique for shell nanoparticles by planetary ball milling under dry conditions and subsequent addition of water has been developed. We investigated the effect of adding water after mechanical grinding on the specific surface area and particle size of the ground shell. The addition of water dissolves the ground shell particles, that leads to the ground shell in nanometer range. We have demonstrated the scallop shells had potential as an adsorbent for gaseous volatile organic compounds, emulsifying agent for nanoparticle-stabilized emulsion, and an additive of plywood adhesive.