液晶性無機ナノシート/ポリウレタン複合エラストマー膜の合成

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  • Synthesis of Liquid Crystalline Nanosheet/Polyurethane Composite Elastomer Films
  • エキショウセイ ムキ ナノシート ポリウレタン フクゴウ エラストマーマク ノ ゴウセイ

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論文(Article)

Inorganic nanosheet/polyurethane nanocomposite elastomers were synthesized in the form of thin films. To synthesize the composite film, layered clay mineral fluorohectorite was first exfoliated into single-layer nanosheets in N,N-dimethylformamide/water mixture added with the prepolymer, isocyanate-terminated low-molecular-weight poly(ethylene oxide). The mixture was then contacted with the solution of four-functional crosslinker molecule, triethylenetetramine, resulting in the formation of urethane bonds that crosslink the prepolymers. The obtained composite elastomer films showed largely improved mechanical property compared to the elastomer without the nanosheets. The composite elastomer film will be applicable in many fields such as dielectric elastomer generator.

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