Synthesis and Properties of a Bridged Siloxane for Protection of Architectural Glazed Tiles of the Qing Dynasty in the Forbidden City

doi:10.3724/SP.J.1077.2014.13473

Journal of Inorganic Materials ›› 2014, Vol. 29 ›› Issue (6): 657-660.DOI: 10.3724/SP.J.1077.2014.13473

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Synthesis and Properties of a Bridged Siloxane for Protection of Architectural Glazed Tiles of the Qing Dynasty in the Forbidden City

HAN Xiang-Na¹, HUANG Xiao¹, LUO Hong-Jie^{1, 2}

(1. Key Scientific Research Base of Ancient Ceramics, State Administration for Cultural Heritage, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China; 2. Shanghai University, Shanghai 200444, China)

Received:2013-09-17 Revised:2013-11-12 Published:2014-06-20 Online:2014-05-27
About author:HAN Xiang-Na. E-mail: jayna422@hotmail.com
Supported by:
National Basic Research Program (2012CB720904);Chinese Academy of Science (Hundred Talents Program)

Abstract

Abstract:

The architectural glazed tiles of the Qing dynasty in the Forbidden City are the most important glazed ceramic of China. But some serious deterioration such as color change, dirty, craze crack, efflorescence and glazed layer spallation are observed in some tiles. In this paper, a bridged siloxane (BSQ) protective material focusing on glazed layer spallation issue was designed and synthesized starting with isophorone diisocyanate (IPDI) and 3-aminopropyltriethoxysilane. Important properties including water absorption, contact angle, color change, water vapor diffusion and compressive strength of the treated glazed titles were examined. Furthermore, the chemical attack tests and freeze-thaw cycles were also evaluated. It shows that the BSQ treatment can modify the tile surface to hydrophobic, increase the strength of tile body and thus mitigate glazed layer spallation.

Key words: forbidden city architectural glazed tiles, bridged siloxane, conservation, organic-inorganic hybrid

CLC Number:

TQ179

HAN Xiang-Na, HUANG Xiao, LUO Hong-Jie. Synthesis and Properties of a Bridged Siloxane for Protection of Architectural Glazed Tiles of the Qing Dynasty in the Forbidden City[J]. Journal of Inorganic Materials, 2014, 29(6): 657-660.

Figures/Tables 4

Fig. 1 N2 adsorption/desorption isotherms of BSQ xerogel

Fig. 2 Chemicals resistance of untreated and treated glazed tiles to alkaline (a) and acid (b)

Table 1 Physical and chemical properties of untreated and treated glazed titles

Sample	Water absorption /%	Contact angle /(°)	DE^*	Water vapor diffusion coefficient, μ/(cm²·s^-1)	Compressive strength /MPa
Untreated	14.9	40.00	-	2601.55	46.06±4.6
Treated	13.9	134.54	4.55	3805.70	60.60±9.4

Fig. 3 Photos of untreated sample after 6 freeze-thaw cycles (a) and BSQ treated sample after 34 freeze-thaw cycles (b). The darker part without glaze is the previous damage; the circled light-colored part is the new damage generated during the cycles

References 13

[1]	苗建民, 王时伟, 段鸿莺, 等. 古代建筑琉璃构件剥釉机理内在因素研究, 故宫博物院院刊, 2008, 139: 115-129.
[2]	ZHAO JING, LI WEI-DONG, LUO HONG-JIE, et al. Research on protection of the architectural glazed ceramics in the Palace Museum, Beijing. J. Cult. Herit, 2010, 11(3): 279-287.
[3]	"古代琉璃构件保护与研究"课题组. 清代剥釉琉璃瓦件施釉重烧的再研究, 故宫博物院院刊, 2008, 140: 106-124.
[4]	VAZ M F, PIRES J, CARVALHO A P. Effect of the impregnation treatment with Paraloid B-72 on the properties of old Portuguese ceramic tiles.J. Cult. Herit, 2008, 9(3): 269-276.
[5]	LIU WAN-XIANG. Ancient architecture of glazed tile strengthening protection, Frie. Sci. Amate, 2013: 113-115.
[6]	ZHAO JING, LI WEI-DONG, LUO HONG-JIE. Analysis and testing of the organic-coatings for the conservation of architectural glazed tiles.Sci. Conserv. Archaeol, 2009, 21(3): 15-22.
[7]	惠任. 洛阳山陕会馆古建琉璃构件腐蚀及保护研究. 西安. 西北大学硕士学位论文, 2006.
[8]	ZHANG BING-JIAN, WEI GUO-FENG, YANG FU-WEI, et al. Challenges and future in conservation material research for immovable objects of cultural heritage .Sci. Conserv. Archaeol, 2010, 22(04): 102-109.
[9]	SHEA K J, LOY D A, WEBSTER O. Arylsilsesquioxane gels and related materials. New hybrids of organic and inorganic networks. J. Am. Chem.Soc, 1992, 114(17): 6700-6710.
[10]	DONG S, TU J, ZHANG X. An investigation of the sliding wear behavior of Cu-matrix composite reinforced by carbon nanotubes. Mater. Sci. Engineer:A, 2001, 313(1): 83-87.
[11]	YANG YONG-GANG, MIHO NAKAZAWA, MASAHIRO SUZUKI, et al. Formation of helical hybrid silica bundles. Chem. Mater, 2004, 16(20): 3791-3793.
[12]	ZUB Y L, STOLYARCHUK N V, MELNYK I V, et al. New adsorbents based on bridged polysilsesquioxanes containing 3-mercaptopropyl functional groups .Mendeleev Commun, 2005, 15(4): 168-170.
[13]	HU SHENG-WEI, YANG DONG-JIANG, XU YAO, et al. A novel moisture-resistant film for NiSO4·6H2O filter based on isophorone diisocyanate-bridged polysilsesquioxane. Mater. Chem. Phys, 2009, 114(2): 868-873.

Synthesis and Properties of a Bridged Siloxane for Protection of Architectural Glazed Tiles of the Qing Dynasty in the Forbidden City

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