書誌事項
- タイトル別名
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- Hydrolysis Characteristics of Biodegradable Plastic(Poly Lactic Acid).
- ギジュツ ロンブン セイブンカイセイ プラスチック ポリ ニュウサン ノ カスイ ブンカイ トクセイ
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説明
We investigated primary biodegradability of Poly Lactic Acid (PLA) using PLA hydrolysis tests under various composting temperatures and pHs.<BR>Under the pH range used in this study, higher test temperatures accelerated primary biodegradation by hydrolysis, and there was a marked reduction in molecular weight. However, in the range of pH 6.0-8.0 there was little effect of pH on both molecular weight reduction and weight reduction. Under more alkaline conditions, i.e., at pH 9.0, a marked reduction in molecular weight and weight loss were observed. Examination of test sample cross sections showed that PLA hydrolysis started from their outer surface.<BR>From these findings, we conclude that dynamic temperatures and pH changes in the composting process promote primary biodegradation of PLA, enabling complete biodegradation. This demonstrates the concept that composting is a useful method for degradation.
収録刊行物
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- 日本食品科学工学会誌
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日本食品科学工学会誌 49 (9), 598-604, 2002
公益社団法人 日本食品科学工学会
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詳細情報 詳細情報について
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- CRID
- 1390001206408332032
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- NII論文ID
- 10009690268
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- NII書誌ID
- AN10467499
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- ISSN
- 18816681
- 1341027X
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- NDL書誌ID
- 6302481
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDLサーチ
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可
