21117 ポリカプロラクトンと杉材との接着性に及ぼす分子量の影響(材料力学(組織制御))

概要

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Tearing test of PCL adhered Sugi-woods, adhered at 70 to 240℃ for 1h, have been performed using three kinds of PCL which have some different molecular weight. As tearing strength shows constant value for each molecular weight of PCL at from 100 to 140℃. In there regain specimens teared at the part of PCL in adhered Sugi-woods there constant value test to depends on molecular weight of PCL. It is cleaned that wettability angle between Sugi-woods and PCL was needed angle under 45 degree for specimen showed enough strength. At adhesion temperature between 150℃ and 210℃, specimens shows strength estimated by calculate by adhesive plane a net strength of Sugi -woods. It was though that the reason of this increase of interface plane from PCL to Sugi-woods by increasing of immersion of PCL.
2005-03-17