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A novel inorganic phosphate-based adhesive for bonding archaeological pottery: a preliminary exploration.
- Source :
- Heritage Science; 5/24/2024, Vol. 12 Issue 1, p1-16, 16p
- Publication Year :
- 2024
-
Abstract
- Damage and fracture of archaeological potteries not only jeopardize the long-term preservation but also hinder their exhibition. To repair these pottery sherds effectively, this study introduces a novel inorganic phosphate-based adhesive and evaluates its effectiveness through a series of experiments. To determine the optimal base adhesive, the paper investigates the influence of varying weight ratios of the H<subscript>2</subscript>O–H<subscript>3</subscript>PO<subscript>4</subscript> system and the Al(OH)<subscript>3</subscript>–H<subscript>3</subscript>PO<subscript>4</subscript> system on properties including tensile lap-shear strength, microstructure, high-temperature resistance and phase composition. However, the original black color of the traditional CuO–phosphate adhesive limits its application. The innovation of this study lies in the addition of nano-TiO<subscript>2</subscript> to the adhesive, which not only improves the bonding strength but also adjusts the color of the adhesive. This study has defined the optimal formulation (i.e., base adhesive = m[Al(OH)<subscript>3</subscript>]:m[H<subscript>3</subscript>PO<subscript>4</subscript>] = 7:100, filler = 10wt% nano-TiO<subscript>2</subscript>), and the final product shows no residual acid in adhesives. Additionally, the fracture surfaces are successfully bonded with a high strength of 3.56 MPa. Various ageing tests including dry-thermal ageing, hygrothermal ageing and UV irradiation ageing are conducted to assess the ageing resistance of the inorganic phosphate-based adhesive. The results indicate strong tolerance of adhesive to high temperature and high humidity environment. Preliminary applications in archaeological pottery restoration suggest that the inorganic phosphate-based adhesive offers considerable promise for repairing shattered pottery. [ABSTRACT FROM AUTHOR]
- Subjects :
- POTTERY
ADHESIVES
POTSHERDS
BOND strengths
TENSILE strength
HIGH temperatures
Subjects
Details
- Language :
- English
- ISSN :
- 20507445
- Volume :
- 12
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- Heritage Science
- Publication Type :
- Academic Journal
- Accession number :
- 177464240
- Full Text :
- https://doi.org/10.1186/s40494-024-01283-5