化学処理による廃羊毛の機能性材料としての再資源化 : ギ酸処理およびサクシニル化による羊毛の吸水性と吸湿性への影響

概要

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We have investigated chemical modification of wool fibers for effective re-use of waste wool and attempted succinylation in order to give high water absorbability and hygroscopicity on wool. Different samples of wool fibers were pre-treated with formic acid or were pre-treated with formic acid followed by sonication under different conditions to improve the accessibility to succinic anhydride. The treatment at higher temperatures and sonication raised the reaction efficiency of succinylation. The water uptake increased 4〜7 times after these treatments, but was not affected by carboxyl groups introduced by succinylation but by morphological change after the pretreatments. On the other hand, hygroscopicity did not change after the pre-treatments but increased after succinylation. This fact suggests that hygroscopicity is strongly affected by the enriched carboxyl groups.
2004-02-01