液晶ポリマー構造の3次元印刷

Silvan Gantenbein¹, Kunal Masania², Wilhelm Woigk¹

¹Complex Materials, Department of Materials, ETH Zürich, Zürich, Switzerland.

Nature

|September 14, 2018

まとめ

リサイクル可能な軽量なポリマー構造を 3Dプリントする方法を開発しましたこのアプローチでは液晶ポリマーのセルフアセンブリを用いて生物学的材料を真似て特殊な硬さと強度を持つ材料を作り出します

科学分野:

材料科学
ポリマー化学
アディティブ製造

背景:

繊維で強化されたポリマーは航空宇宙やバイオメディカルインプラントのような要求の高いアプリケーションに高硬さと強さを提供します
現在の制限には,エネルギー密集した製造,脆い骨折,形状とリサイクルにおける困難が含まれます.
生物学的材料は階層的な自己組織化と循環的統合によって驚くべき特性を獲得します

研究の目的:

階層的な構造と複雑な幾何学を持つリサイクル可能な軽量構造を作成するための3Dプリントアプローチを開発する.
3Dプリントしたポリマーの頑丈さと強さを制御する
製造の自由と分子制御の間のギャップを埋めるために

主な方法:

液晶ポリマー (LCP) の原料を用いた3次元 (3D) 印刷技術を使用しています.
溶融エクストルーションの過程でLCP分子が高度に指向された領域に自己組み立てを制御する.
印刷経路に沿って分子領域を整列し,機械的ストレス要求に基づいてポリマー構造を強化します.

主要な成果:

階層構造と複雑な幾何学を持つリサイクル可能な軽量構造の作成を実証した.
現在の3Dプリントされたポリマーよりも硬さや強さやタフさがあります
達成された性能は高性能の軽量複合材料に匹敵する.

結論:

開発された3Dプリント方法により,優れた機械的性質を持つ高度なポリマー構造を製造することができます.
液晶ポリマーの自己組み立ては複雑で高性能な材料を設計し実現する道を示しています
このアプローチは従来の製造の限界を克服し,より大きな設計の自由と材料のリサイクル性を可能にします.

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