| 英文摘要 |
This work presents the results of a pilot study to investigate the uptake of, and subsequent extraction of B-72 as a consolidantfor fragile archaeological bones. A 10% solution of B-72 in acetone has a viscosity of approximately 5.80±1.06μcP and surfacetension of around 20.5±2.0 mNm-1. Despite a higher viscosity and lower surface tension, this concentration of consolidantpenetrates porous archaeological bone extremely efficiently under capillary forces down to the nano-pore level. There is norequirement for vacuum impregnation to achieve full consolidation and strengthening of fragile bone. A single impregnation with a10% solution resulted in a 7.7% increase in dry weight attributable to the solid B-72 resin within the structure. A secondimpregnation raised introduced up to 17.8 wt% of resin. B-72 is detectable in the consolidated bone using FTIR-ATR spectrometrybut is not quantifiable. On un-aged consolidated bone specimens only approximately 54% of the resin could be removed by twoimmersion washes in acetone. Surprisingly, the resin proved easier to remove from both heat-aged (64-74% extractable) anduv-aged (61-62% extractable) specimens. |
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