A new bio-based organogel for the removal of wax coating from indoor bronze surfaces

Heritage Science

Table 2 Evaluation of the gel’s retention power based on TGA results

Sample	Solvent fraction [%wt]	DMC in solvent mixture X_DMC [%wt]	TGA weight loss WL_TGA [%wt]	∆ ^b_DMC [%wt]
Gel PHB-DMC/BD(3:1)	90.9	78.9	67.3^a	15
Gel PHB-DMC/BD(1:1)	90.5	55.5	38.2^a	31
DMC/BD(3:1)	100	78.9	72.3	8
DMC/BD(1:1)	100	55.5	51.7	7

^aEvaluated discarding polymer fraction of the gel
^bEvaluated as \(\Delta_{DMC} = 100*\frac{{\left( {X_{DMC} - WL_{TGA} } \right)}}{{X_{DMC} }}\)