An alternative approach for the incorporation of cellulose nanocrystals in flexible polyurethane foams based on renewably sourced polyols

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• 作者：Lorena Ugarte^a ; Arantzazu Santamaria-Echart^a ; Stefan Mastel^b ; Marta Autore^b ; Rainer Hillenbrand^c ; ^d ; Maria Angeles Corcuera^a ; Arantxa Eceiza^a ; ^{arantxa.eceiza@ehu.eus}
• 关键词：Cellulose nanocrystals ; Renewable polyols ; Polyurethane foam nanocomposites ; Mechanical properties ; Nano/microstructure ; Nanospectroscopy
• 刊名：Industrial Crops and Products
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：95
• 期：Complete
• 页码：564-573
• 全文大小：3909 K
• 卷排序：95

文摘

Flexible polyurethane foam nanocomposites were synthesized from biomass derived polyols and cellulose nanocrystals. The incorporation of cellulose nanocrystals was done in aqueous suspension, avoiding the redispersion in pollutant solvents. The interactions of CNCs with the polyurethane affected nano/microstructure, foam cellular morphology and final properties. The presence of cellulose nanocrystals in foam struts was proved by infrared near-field microscopy and nanospectroscopy.