ダイナミックにクロスリンクされたエポキシド化された大豆油を基にした固化ネットワークによるポリ乳酸/ポリブチレンアディパート-コテレフタレットの硬化に関する研究
Ruilong Xu1, Feng Zhao1, Li Pang1
1Key Lab of Rubber-Plastics, Ministry of Education/Shandong Provincial Key, Lab of Rubber-Plastics, School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China.
International journal of biological macromolecules
|September 5, 2025
まとめ
新しい火化エポキシド化大豆油と酸ネットワーク (VEC) は,ポリ乳酸/ポリブチレンアディパートテレフタラート混合物を強化します. 機械的特性や再処理性や分解特性を持つ 生物分解性材料が作られます
科学分野:
- ポリマー科学と工学
- 材料科学
- 持続可能な素材
背景:
- ポリ乳酸 (PLA) とポリブチレンアディパートテレフタレート (PBAT) の混合物は,生物分解性ポリマーとして広く使用されています.
- PLAとPBATの混合物のインターフェイス互換性と機械的性質の改善は,それらのアプリケーションの拡大に不可欠です.
- 既存の方法では,これらの混合物における機械的な強さ,柔軟性,再処理性をバランスにすることがしばしば困難です.
研究 の 目的:
- VEC (vulcanized epoxidized soybean oil and citric acid) という新しいダイナミックなクロスリンクネットワークを,現地で合成する.
- VECをPLA/PBATの混合物に組み込み,インターフェイスの互換性と全体的な材料性能を向上させる.
- VECがPLA/PBAT混合物の機械特性,再処理性,分解性,水害性への影響を調査する.
主な方法:
- エポキシド化された大豆油 (ESO) と無水リン酸 (CA) の間の亜鉛酸催化エポキシリング開封によるVECのインシット合成.
- 合成されたVECをPLA/PBAT (70/30) 混合物に組み込む.
- 機械的特性 (断裂時の延長,衝撃強度),再処理性,分解性 (アルカリ条件),水害性.
主要な成果:
- ダイナミックなVECネットワークは,PLAとPBATフェーズ間のインターフェイス互換性を効果的に改善しました.
- VECの最適化により,破裂時の伸縮 (434. 67%) と衝撃強度 (9. 12 kJ/ m2) が著しく改善されました.
- VECで改造された混合物は優れた再処理性を示し,リサイクル後に重要な機械的性質を保持し,アルカリ条件下で完全な分解を示した.
結論:
- 動的にクロスリンクされたVECネットワークは,PLA/PBAT混合物の有効な互換化剤として機能します.
- VECの組み込みにより,優れた機械的特性,溶解強度,および生物分解性混合物の再処理性が向上します.
- 開発されたPLA/PBAT複合材料は,高性能で持続可能でリサイクル可能な材料への有望な経路を提供します.
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