Aeropectin: Fully Biomass-Based Mechanically Strong and Thermal Superinsulating Aerogel

详细信息    查看全文

• 作者：Cyrielle Rudaz ; R茅mi Courson ; Laurent Bonnet ; Sylvie Calas-Etienne ; H茅bert Sall茅e ; Tatiana Budtova
• 刊名：Biomacromolecules
• 出版年：2014
• 出版时间：June 9, 2014
• 年：2014
• 卷：15
• 期：6
• 页码：2188-2195
• 全文大小：461K
• 年卷期：v.15,no.6(June 9, 2014)
• ISSN：1526-4602

文摘

Monolithic pectin aerogels, aeropectins, were prepared via dissolution鈥揼elation鈥揷oagulation and subsequent drying with supercritical CO₂. Aeropectin had pore sizes that varied from mesopores to small macropores and compression moduli in the range from 4 to 18 MPa. Aeropectins show plastic deformation up to 60% strain before the pore walls collapse. Pectin aerogels have a thermal conductivity below that of air in ambient conditions, making them new thermal superinsulating fully biomass-based materials. The contribution of gas and solid conduction plus radiative heat transfer were determined and discussed.