書誌事項
- タイトル別名
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- The Improvement of Plastic Processability of Poly (L-Lactic Acid) Modified by Dicumyl Peroxide
- カサンカブツ テンカ ニ ヨル ポリ L ニュウサン ノ セイケイ カコウセイ ノ カイリョウ
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GPC and rheological measurements under shear and uniaxial flow for Poly (L-lactic acid) modified by dicumyl peroxide were carried out. The description of experimental GPC resulted that some amounts of added dicumyl peroxide caused an increase of cross-linked regions in the polymer. The viscoelastic properties of poly (L-lactic acid) modified by dicumyl peroxide under the shear flow were investigated. It was found that the rheological properties of the poly (L-lactic acid) were distinctly different from those of a neat poly (L-lactic acid). The elastic response at low frequencies was significantly enhanced in comparison with the neat poly (L-lactic acid). Uniaxial elongation behavior was also measured. In short time region, the elongational viscosity of Poly (L-lactic acid) modified by dicumyl peroxide were three times larger than the shear viscosity. This result meant that Trouton's rule is applicable to the results. Beyond a certain critical strain, the uniaxial elongational viscosity showed rapid increase, which was referred to as strain hardening. Die-swell ratio increased with dicumyl peroxide contents. Furthermore poly (L-lactic acid) modified by dicumyl peroxide was molded by direct-blow. The thickness distribution could be homogeneous by modified peroxide.
収録刊行物
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- 成形加工
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成形加工 14 (9), 598-603, 2002
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
- 1390282679436979200
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- NII論文ID
- 10010468669
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- NII書誌ID
- AN10278882
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- COI
- 1:CAS:528:DC%2BD38Xot1Gmu7k%3D
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- ISSN
- 18837417
- 09154027
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- NDL書誌ID
- 6291692
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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
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可