A novel inorganic phosphate-based adhesive for bonding archaeological pottery: a preliminary exploration

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 experiment...

Full description

Saved in:
Bibliographic Details
Published inHeritage science Vol. 12; no. 1; pp. 164 - 16
Main Authors Xie, Lina, Li, Yuhu, Hu, Wenjing, Fang, Shiqiang, Chen, Xue-Qiang
Format Journal Article
LanguageEnglish
Published Cham Springer International Publishing 24.05.2024
Springer Nature B.V
SpringerOpen
Subjects
Adhesive bonding
Adhesive strength
Adhesives
Aging
Archaeological pottery
Bonding material
Bonding strength
Ceramics
Chemistry and Materials Science
Color
Color variation
Fracture surfaces
High temperature
Inorganic phosphate-based adhesive
Materials Science
Microstructure
Phase composition
Pottery
Shear strength
Titanium dioxide
Ultraviolet radiation
Bonding material
Bonding strength
Microstructure
Archaeological pottery
Inorganic phosphate-based adhesive
Color variation
Online AccessGet full text

Cover

More Information
Summary: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 2 O–H 3 PO 4 system and the Al(OH) 3 –H 3 PO 4 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 2 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) 3 ]:m[H 3 PO 4 ] = 7:100, filler = 10wt% nano-TiO 2 ), 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. Graphical Abstract
ISSN:2050-7445
2050-7445
DOI:10.1186/s40494-024-01283-5