二軸スクリュ押出機を用いた水酸化アルミニウム難燃剤を含有したポリ乳酸組成物のケミカルリサイクル
For the chemical recycling of poly (L-lactic acid) (PLLA) component in fire-resistant polymer alloys used for electric/electronic equipments, effects of Al(OH)3 added as a flame retardant on the thermal depolymerization of PLLA component were evaluated. As a result of examining the conversion from t...
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| Published in | 成形加工 Vol. 22; no. 11; pp. 638 - 644 |
|---|---|
| Main Authors | , , , , , |
| Format | Journal Article |
| Language | Japanese |
| Published |
一般社団法人 プラスチック成形加工学会
2010
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| Online Access | Get full text |
| ISSN | 0915-4027 1883-7417 |
| DOI | 10.4325/seikeikakou.22.638 |
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| Abstract | For the chemical recycling of poly (L-lactic acid) (PLLA) component in fire-resistant polymer alloys used for electric/electronic equipments, effects of Al(OH)3 added as a flame retardant on the thermal depolymerization of PLLA component were evaluated. As a result of examining the conversion from the PLLA/PP/Al(OH)3 [14/56/30(wt/wt/wt)] compounds to lactide monomer, L, L-lactide purity of 90％ was achieved under the recovery ratio of about 90％. Furthermore, the combination of Al(OH)3 and MgO accelerated PLLA depolymerization as synergetic catalyst to generate L, L-lactide. This study used with a practical twin screw extruder is the first achievement as an efficient chemical recycling system to obtain lactide monomer recovery from PLLA compounds. |
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| AbstractList | For the chemical recycling of poly (L-lactic acid) (PLLA) component in fire-resistant polymer alloys used for electric/electronic equipments, effects of Al(OH)3 added as a flame retardant on the thermal depolymerization of PLLA component were evaluated. As a result of examining the conversion from the PLLA/PP/Al(OH)3 [14/56/30(wt/wt/wt)] compounds to lactide monomer, L, L-lactide purity of 90％ was achieved under the recovery ratio of about 90％. Furthermore, the combination of Al(OH)3 and MgO accelerated PLLA depolymerization as synergetic catalyst to generate L, L-lactide. This study used with a practical twin screw extruder is the first achievement as an efficient chemical recycling system to obtain lactide monomer recovery from PLLA compounds. |
| Author | 西田, 治男 安田, 信彦 柳田, 大輝 附木, 貴行 白井, 義人 橋本, 憲明 |
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| References_xml | – reference: 15) 大村昌己，附木貴行，西田治男，白井義人：高分子論文集，64，745（2007） – reference: 22) 西田治男，白井義人：植物由来プラスチックの高機能化とリサイクル技術 65（2007）．サイエンス＆テクノロジー – reference: 23) Nishida, H., Arazoe, Y., Tsukegi, T., Wang, Y. and Shirai, Y.: Int. J. Polym. Sci., 2009 (2009) – reference: 2) 西田治男：プラスチックスエージ，50（臨時増刊号），79（2004） – reference: 6) Jamshidi, K., Hyon, S. -H. and Ikada, Y.: Polymer, 29, 2229 (1988) – reference: 13) 隅田憲武，福島容子，成形加工：20（1），50（2008） – reference: 1) 日経ものづくり，特集こんなに使えるバイオプラのすべて，8，36（2009） – reference: 17) 附木貴行，西田治男，大村昌己，白井義人，遠藤剛：高分子論文集，63，241（2006） – reference: 21) Tsukegi, T., Motoyama, T., Shirai, Y., Nishida, H. and Endo, T.: Polym. Degrad. Stab., 92, 552 (2007) – reference: 16) 大村昌己，附木貴行，西田治男，白井義人：高分子論文集 64，751（2007） – reference: 19) Motoyama, T., Tsukegi, T., Shirai, Y., Nishida, H. and Endo, T.: Polym. Degrad. Stab., 92, 1350 (2007) – reference: 4) Cam, D. and Marucci, M.: Polymer, 38, 1879 (1997) – reference: 10) Murayama, T., Yokomori, Y., Yanagisawa, N., Tomioka, S., Konishi, S. and Kimura, Y.: 1995 int. Chem. Cong. Of Pacific Basin Soc., (Hawai), (1995) – reference: 3) 西田治男，遠藤剛：未来材料，3，38（2005） – reference: 12) 福島容子，隅田憲武，谷口照雄，菊谷慎哉：成形加工，17（7），496（2006） – reference: 5) Noda, M. and Okuyama, H.: Chem. Pharm. Bull, 47, 467 (1999) – reference: 8) 佐伯孝，附木貴行，辻秀人，大門裕之，藤江幸一：高分子論文集，61，561（2004） – reference: 18) Nishida, H., Fan, Y., Mori, T., Oyagi, N., Shirai, Y. and Endo, T.: Ind. Eng. Chem. Res., 44, (4), 1433 (2005) – reference: 9) Ajioka, M., Enomoto, K., Suzuki, K. and Yamaguchi, A.: Bull. Chem. Soc. Jpn., 52, 4206 (2003) – reference: 14) Omura, M., Tsukegi, T., Shirai, Y., Nishida, H. and Endo, T.: Ind. Eng. Chem. Res., 45, 2949 (2006) – reference: 7) Fan, Y., Nishida, H., Shirai, Y. and Endo, T.: Polym. Degrad. Stab., 84, 143 (2004) – reference: 11) Fukushima, T., Sumihiro, Y., Koyanagi, K., Hashimoto, N., Sakai, T. and Kimura, K.: Int. Polym. Proc., 15 (4), 380 (2000) – reference: 20) Hagiwara, T., Saitoh, H., Tobe, A., Sasaki, D., Yano, S. and Sawaguchi, T.: Macromolecules, 38 (25), 10373 (2005) |
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| Title | 二軸スクリュ押出機を用いた水酸化アルミニウム難燃剤を含有したポリ乳酸組成物のケミカルリサイクル |
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