ダイナミック・クロスリンクは,混じり合わない混合プラスチックを相容らせます
Ryan W Clarke1, Tobias Sandmeier2, Kevin A Franklin1
1Department of Chemistry, Colorado State University, Fort Collins, CO, USA.
Nature
|April 26, 2023
まとめ
この研究は,混合プラスチックのための新しい互換性戦略を導入し,強化された特性を持つ再利用可能なダイナミック・サーモセットを作成します. この革新的なアプローチにより プラスチックの廃棄物から 価値ある材料とエネルギーを回収できます
科学分野:
- 材料科学
- ポリマー化学
- 持続可能な工学
背景:
- 世界的なプラスチック問題は 環境,エネルギー,気候に重大な影響を及ぼしています
- 混合プラスチック廃棄物の,特に極性/非極性ポリマー混合物の 効果的な閉環リサイクルは,相違性や相分離により,依然として大きな課題です.
- 現在の戦略は 低品質な材料を生み出し 循環経済を阻害しています
研究 の 目的:
- 混合不可能なポリマー混合物,特に混合プラスチック廃棄物を適合させるための新しい戦略を開発する.
- 不均一なプラスチック流の現在のリサイクル方法の限界を克服する.
- 混合プラスチックから付加価値のある材料を作り,性能と再処理性を向上させる.
主な方法:
- ダイナミッククロスリンクを混ぜないポリマー混合物 (バイナリ,トリナリ,消費後の混合物) にインサイトで設置する.
- 実験と計算モデル研究を組み合わせる
- ダイナミッククロスリンカーとポリマー鎖の反応を研究し,多重ブロック共ポリマーを形成する.
主要な成果:
- ダイナミッククロスリンクを使用した新しい互換化戦略が成功裏に開発されました.
- 多重ブロック共ポリマーのインシット形成は,極性および非極性ポリマー混合物を効果的に相容らせました.
- 結果として生じたダイナミック・サーモセットは,未使用のプラスチックと比較して,本質的な再処理性,強化された伸縮強度,および強化された爬行抵抗性を示した.
結論:
- 開発された戦略は,相分離問題を克服し,混合プラスチックを互換化するための簡単な経路を提供します.
- ダイナミック・サーモセットは,プラスチック廃棄物から素材とエネルギーを回収するための持続可能な代替手段です.
- このアプローチは複雑な分解プロセスを回避し,高度なプラスチックのリサイクルとアップサイクルの道を開きます.
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