書誌事項
- タイトル別名
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- Improvement of Physical Properties of Poly(lactic acid) by Adding Amorphous Cellulose
- ヒショウカ セルロース オ モチイタ ポリ ニュウサン ノ リキガク ブッセイ ノ カイリョウ
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説明
Poly(lactic acid) (PLA) has attracted much attention recently as green plastic, but its use is still limited because of its low crystallinity and productivity. A modified PLA compound for injection molding was developed by adding nucleating agents and a plasticizer into PLA. Furthermore, addition of filler compounds into PLA was examined to increase the strength and the modulus of PLA. In this study, modified PLA composites containing amorphous cellulose and crystalline cellulose fillers were investigated. The amorphous cellulose filler was made by a mechanochemical reaction. Compared to the modified PLA without cellulose, the PLA/crystalline cellulose composite had increased stiffness and heat resistance, but greatly decreased fracture toughness. The decrease of fracture toughness of the PLA/amorphous cellulose composite was much smaller than that of the PLA/crystalline cellulose composite. To explain these results, scanning electron microscopy and atomic force microscopy were performed. The microscopy observations indicated that the interface of PLA and amorphous cellulose was more cohesive and this prevented the occurrence of microcracks. Effect of further pulverization of amorphous cellulose was also investigated. By using microamorphous cellulose, the impact strength of PLA/amorphous cellulose composite improved by 46 percent.
収録刊行物
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- 成形加工
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成形加工 24 (10), 612-617, 2012
一般社団法人 プラスチック成形加工学会
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詳細情報 詳細情報について
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- CRID
- 1390001204460544000
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- NII論文ID
- 130004849152
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- NII書誌ID
- AN10278882
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- COI
- 1:CAS:528:DC%2BC3sXksFCmsb8%3D
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- ISSN
- 18837417
- 09154027
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- NDL書誌ID
- 024001184
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- 本文言語コード
- ja
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- JaLC
- NDLサーチ
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