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Table 3 Color differences of cotton canvas (AA) after treatment with polar and nonpolar nanocomposites

From: New treatments for canvas consolidation and conservation

Treatment of cotton canvas (AA)Mass uptake (%)L*a*b*ΔE after treatment
Untreated90.7− 0.20.1
Polar nanocomposite591.5− 0.30.30.8
Polar nanocomposite1091.2− 0.50.91.1
Nonpolar nanocomposite590.7− 0.31.21.1
Nonpolar nanocomposite1090.2− 0.51.51.5