干旱区生态环境知识资源中心(Arid): Paraloid (R) B-72/B-48N 1:1 as an Adhesive for Use in Hot Climates: Literature Review, Laboratory Testing, and Observational Field Study

Arid

DOI	10.1080/00393630.2021.1891810
	Paraloid (R) B-72/B-48N 1:1 as an Adhesive for Use in Hot Climates: Literature Review, Laboratory Testing, and Observational Field Study
	Davis, Suzanne L.; Roberts, Caroline; Poli, Andrea
通讯作者	Davis, SL (corresponding author), Kelsey Museum Archaeol, Conservat Dept, 434 South State St, Ann Arbor, MI 48109 USA.
来源期刊	STUDIES IN CONSERVATION
ISSN	0039-3630
EISSN	2047-0584
出版年	2021-03
英文摘要	This paper describes an investigation into 1:1 Paraloid (R) B-72/B-48N as a conservation adhesive for use in hot climates. The study was driven by archaeological conservation work at El-Kurru, Sudan, a Saharan Desert site where daytime high temperatures can reach 45 degrees C. Paraloid (R) B-72 is a favorite adhesive for use with archaeological materials for many reasons - notably its stability and long-term reversibility - but its product literature reports a glass transition temperature (Tg) of 40 degrees C. Pottery reconstructed with Paraloid (R) B-72 slumps within one year at El-Kurru, and joins fail completely after another year. For this reason, we investigated blending Paraloid (R) B-72 with another thermoplastic acrylic resin, Paraloid (R) B-48N, which has a reported Tg of 50 degrees C. Research included a literature search to investigate Paraloid (R) B-48N's long-term stability, reversibility, and the temperature at which it fails. Dynamic mechanical analysis (DMA) was conducted to determine the Tg behavior of Paraloid (R) B-72, Paraloid (R) B-48N, and a 1:1 blend of the two resins. Pottery joined with the 1:1 mixture was observed over a four-year period at El-Kurru to evaluate the mixture's performance in a hot archaeological field setting. Although the 1:1 blend performed better than Paraloid (R) B-72, it was less heat tolerant than expected based on our DMA results as well as literature reports of the performance of similar adhesives. Tg can be defined in multiple ways, and we suggest that the most useful Tg measurement for conservators is the onset temperature at which the glass transition begins. Further, we suggest that creep testing will provide a better indication of the long-term stability of adhesives under mechanical stress, surpassing Tg as a reliable predictor of performance.
英文关键词	Acrylic resins adhesives archaeological conservation ceramics conservation field conservation hot climates glass transition onset temperature Paraloid® B-48N Paraloid® B-72
类型	Review ; Early Access
语种	英语
收录类别	SCI-E ; AHCI
WOS记录号	WOS:000624984600001
WOS类目	Archaeology ; Art ; Chemistry, Applied ; Chemistry, Analytical ; Spectroscopy
WOS研究方向	Archaeology ; Art ; Chemistry ; Spectroscopy
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/352462
作者单位	[Davis, Suzanne L.; Roberts, Caroline] Kelsey Museum Archaeol, Conservat Dept, 434 South State St, Ann Arbor, MI 48109 USA; [Poli, Andrea] Univ Michigan, Dept Mech Engn, Ann Arbor, MI 48109 USA
推荐引用方式 GB/T 7714	Davis, Suzanne L.,Roberts, Caroline,Poli, Andrea. Paraloid (R) B-72/B-48N 1:1 as an Adhesive for Use in Hot Climates: Literature Review, Laboratory Testing, and Observational Field Study[J],2021.
APA	Davis, Suzanne L.,Roberts, Caroline,&Poli, Andrea.(2021).Paraloid (R) B-72/B-48N 1:1 as an Adhesive for Use in Hot Climates: Literature Review, Laboratory Testing, and Observational Field Study.STUDIES IN CONSERVATION.
MLA	Davis, Suzanne L.,et al."Paraloid (R) B-72/B-48N 1:1 as an Adhesive for Use in Hot Climates: Literature Review, Laboratory Testing, and Observational Field Study".STUDIES IN CONSERVATION (2021).