撥水処理をした木材の水分特性（第1報）: 撥水・吸水性と吸放湿性

摘要

The water repellency, water absorption, and moisture absorption-desorption property of a Japanese cedar wood on which a silicone water repellent was applied were studied in this report.rnAs a result, it was found that the water repellency of the water repellent treated wood were significantly improved. Moreover, its moisture absorption-desorption property (moisture-controlling property) was hardly affected.rnAccordingly, it is necessary to consider applications that take advantage of these properties and architectural structures. Since the weather resisting property of water repellent treated material is improved and further improvement in durability may be possible by treating with a water repellent having antifungal properties, advanced investigation concerning these points is necessary.%木材は，その水分状態の変化に伴い寸法変化を起こしたり，さまざまな性質が変化したりする。そして，そのことが利用上のトラブルの原因となることも多い。そのため木材の利用においては，塗装や各種の処理が行われることがある。木材の塗装は一般に，保護・美観・防水などを目的として行われる。塗装は，表面に塗膜を形成させる場合が多いが，塗膜をほとんど形成しない浸透性の塗料や亜麻仁油などのオイルフィニッシュ用の仕上げ剤を用いた塗装もある。