Assessment of Damage from Organic Protective Coating Treatments to Historic Stone Buildings and Sculptures

The conservation of historic stone buildings and sculptures is receiving growing attention because of weathering. Now, the techniques for stone conservation are primarily achieved through the use of organic coating treatments. Although some defects of organic protective materials have been recognized, the further shortcoming is still short of awareness. Here we show our investigations of the side effect of organic coating treatments. Some kinds of common stones, including sandstone, tuff, granite, dolomite and marble, were selected as protected objects. Organic silicon compounds were used as protective coatings. The artificial weathering, including salting, freezing and heating, was designed. The treated stones’ decaying was investigated. The results reveal that the treated stone decaying is aggravated. Moreover, the destruction mechanism has been discussed.

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3 The Preparation and Properties of Organic Silicon Compounds

Organosilicon Chemistry ◽

10.1515/9783110862386.17 ◽

1986 ◽

pp. 17-108

Keyword(s):

Silicon Compounds ◽

Organic Silicon

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[3+2]Cycloaddition Utilizing the Charactaristics of Organic Silicon Compounds — Study on Regio- and Stereoselectivity of Pyrrolidine Ring Formation

Heterocycles ◽

10.3987/r-1985-01-0191 ◽

1985 ◽

Vol 23 (1) ◽

pp. 191 ◽

Cited By ~ 1

Author(s):

Kazuo Achiwa ◽

Nobuyuki Imai ◽

Hiromi Kotaki ◽

Yoshiyasu Terao

Keyword(s):

Ring Formation ◽

Pyrrolidine Ring ◽

Silicon Compounds ◽

Organic Silicon

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Structural Chemistry of Organic Silicon Compounds

The Chemistry of Organic Silicon Compounds - The Chemistry of Functional Groups ◽

10.1002/0470025107.ch3 ◽

2004 ◽

pp. 227-303 ◽

Cited By ~ 102

Author(s):

W. S. Sheldrick

Keyword(s):

Structural Chemistry ◽

Silicon Compounds ◽

Organic Silicon

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Deposition of SiOxCyHz Protective Coatings on Polymer Substrates in an Industrial-Scale PECVD Reactor

Coatings ◽

10.3390/coatings9040234 ◽

2019 ◽

Vol 9 (4) ◽

pp. 234 ◽

Cited By ~ 5

Author(s):

Žiga Gosar ◽

Janez Kovač ◽

Miran Mozetič ◽

Gregor Primc ◽

Alenka Vesel ◽

...

Keyword(s):

Mass Spectrometry ◽

Protective Coating ◽

Photoelectron Spectroscopy ◽

Secondary Ion Mass Spectrometry ◽

Protective Coatings ◽

Plasma Reactor ◽

Chemical Vapour ◽

Rf Discharge ◽

Average Roughness ◽

Polymer Substrates

The deposition of protective coatings on aluminised polymer substrates by a plasma enhanced chemical vapour deposition PECVD technique in a plasma reactor with a volume of 5 m3 was studied. HMDSO was used as a precursor. Plasma was sustained in a capacitively coupled radiofrequency (RF) discharge powered by an RF generator operating at 40 kHz and having an adjustable output power up to 8 kW. Gaseous plasma was characterised by residual gas mass spectrometry and optical emission spectroscopy. Polymer samples with an average roughness of approximately 5 nm were mounted into the plasma reactor and subjected to a protocol for activation, metallisation and deposition of the protective coating. After depositing the protective coating, the samples were characterised by secondary ion mass spectrometry (SIMS) and X-ray photoelectron spectroscopy (XPS). The combination of various techniques for plasma and coating characterisation provided insight into the complex gas-phase and surface reactions upon deposition of the protective coatings in the industrial-size plasma reactor.

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Effects of organic silicon compounds on syngas auto-ignition behavior

Combustion and Flame ◽

10.1016/j.combustflame.2019.10.022 ◽

2020 ◽

Vol 212 ◽

pp. 234-241

Author(s):

Rachel A. Schwind ◽

Margaret S. Wooldridge

Keyword(s):

Silicon Compounds ◽

Organic Silicon ◽

Auto Ignition

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Synthesis and Characterization of a Novel Biomaterial for the Conservation of Historic Stone Buildings and Sculptures

Materials Science Forum ◽

10.4028/www.scientific.net/msf.675-677.317 ◽

2011 ◽

Vol 675-677 ◽

pp. 317-320 ◽

Cited By ~ 13

Author(s):

Qiang Liu ◽

Bing Jian Zhang

Keyword(s):

Biomimetic Synthesis ◽

Synthesis And Characterization ◽

Stone Conservation ◽

Prepared Material ◽

Biomimetic Method ◽

Surface Modified ◽

Historic Stone

The conservation of historic stone sculptures and buildings is a focus of research. But there are no completely satisfying protective materials until now. In this paper, a conservative film of apatite has been prepared on the surface-modified marble stone by using a solution of CaCl2 and (NH4)2HPO4 as the precursor through a biomimetic method. The prepared material was characterized by some instruments. Its performances were also evaluated by its ability to consolidate, resist soil and acid. The obtained results indicate that the conservative effects are satisfying and the biomimetic synthesis should represent a new prospective in stone conservation.

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