Extended Data Table 1 | Silica aerogel ink compositions and properties
ρ, bulk density; SBET, surface area calculated from N 2 sorption (precision estimated to be 30 m^2 g−1); VBJHpore, average pore volume derived from the BJH analysis (precision estimated to be
0.2 cm^3 g−1); λ, thermal conductivity; the uncertainty on ρ and λ is calculated from the standard deviation of 3–5 measurements.
aThe sample are named using the following convention: SPxM(E)y denotes an ink with a mass ratio x of SiO 2 from silica aerogel particle (‘S’) to PEDS sol (‘P’), and a mass ratio y of MnO 2 (‘M’) or
EP_M95 prepolymer (‘E’) to silica in PEDS sol; SP1.6_PPGNH0 is the ink formulation without PPGNH.
bPPGNH, poly(propylene glycol) bis(2-aminopropyl ether).
cSAPs, SiO 2 aerogel particles.
dEP_M95 is a commercial aliphatic silane-terminated prepolymer (provided by Evonik), with a structure of (MeO) 3 –Si–(CH 2 ) 3 –(NH)–(C=O)–O–R–O–(C=O)–(NH)–(CH 2 ) 3 –Si–(OMe) 3 and MW of
around 600 g mol−1.
eMO, methyl orange.