Aeropectin: fully biomass-based mechanically strong and thermal superinsulating aerogel.
Monolithic pectin aerogels, aeropectins, were prepared via dissolution-gelation-coagulation 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.
Mines ParisTech , Centre for Materials Forming (CEMEF), UMR CNRS 7635, CS 10207, 06904 Sophia-Antipolis Cedex, France.
Cyrielle
C
Rudaz
Rémi
R
Courson
Laurent
L
Bonnet
Sylvie
S
Calas-Etienne
Hébert
H
Sallée
Tatiana
T
Budtova
D018533:Biomass; D001696:Biomechanical Phenomena / Q000502:physiology; D002957:Citrus / Q000737:chemistry*; D005782:Gels / Q000737:chemistry*; D027845:Malus / Q000737:chemistry*; D010368:Pectins / Q000737:chemistry* / Q000302:isolation & purification; D013814:Thermal Conductivity
D005782:Gels; D010368:Pectins