Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Synthesis of TEOS/PDMS-OH/CTAB composite coating material as a new stone consolidant formulation
https://orcid.org/0000-0002-6238-7381
HighlightsTEOS/PDMS/CTAB composite coatings have been fabricated.TEOS/PDMS/CTAB composites create a hydrophobic, crack-free coating.The composite coatings have been used for sandstone conservation.
AbstractA new stone consolidant formulation based on tetraethoxysilane (TEOS) and additives such as hydroxyl-terminated polydimethylsiloxane (PDMS-OH) and cetyl trimethyl ammonium bromide (CTAB) has been developed denoted as TEOS/PDMS-OH/CTAB composite coating material. The hydrophobic property, surface morphology, and abilities to resist acid corrosion and salt crystallization weathering have been measured to evaluate the stone protection performance of as-prepared TEOS/PDMS-OH/CTAB composite coating materials. The results demonstrate that the addition of PDMS-OH contributes to improve the hydrophobic properties of sandstones. The addition of CTAB to the siloxane composition results in the formation of superficial protrusions with a micro- and nanoscopic structure and overall alteration of surface morphology and roughness, thus preventing the cracking during the drying process. In addition, after treatment by TEOS/PDMS-OH/CTAB composite coating materials, the sandstone has improved the abilities to resist acid and salt crystallization weathering significantly. These advantages make TEOS/PDMS-OH/CTAB composite coating materials exhibit good comprehensive performance in terms of stone heritage protection.
Synthesis of TEOS/PDMS-OH/CTAB composite coating material as a new stone consolidant formulation
https://orcid.org/0000-0002-6238-7381
HighlightsTEOS/PDMS/CTAB composite coatings have been fabricated.TEOS/PDMS/CTAB composites create a hydrophobic, crack-free coating.The composite coatings have been used for sandstone conservation.
AbstractA new stone consolidant formulation based on tetraethoxysilane (TEOS) and additives such as hydroxyl-terminated polydimethylsiloxane (PDMS-OH) and cetyl trimethyl ammonium bromide (CTAB) has been developed denoted as TEOS/PDMS-OH/CTAB composite coating material. The hydrophobic property, surface morphology, and abilities to resist acid corrosion and salt crystallization weathering have been measured to evaluate the stone protection performance of as-prepared TEOS/PDMS-OH/CTAB composite coating materials. The results demonstrate that the addition of PDMS-OH contributes to improve the hydrophobic properties of sandstones. The addition of CTAB to the siloxane composition results in the formation of superficial protrusions with a micro- and nanoscopic structure and overall alteration of surface morphology and roughness, thus preventing the cracking during the drying process. In addition, after treatment by TEOS/PDMS-OH/CTAB composite coating materials, the sandstone has improved the abilities to resist acid and salt crystallization weathering significantly. These advantages make TEOS/PDMS-OH/CTAB composite coating materials exhibit good comprehensive performance in terms of stone heritage protection.
Synthesis of TEOS/PDMS-OH/CTAB composite coating material as a new stone consolidant formulation
https://orcid.org/0000-0002-6238-7381
HighlightsTEOS/PDMS/CTAB composite coatings have been fabricated.TEOS/PDMS/CTAB composites create a hydrophobic, crack-free coating.The composite coatings have been used for sandstone conservation.
AbstractA new stone consolidant formulation based on tetraethoxysilane (TEOS) and additives such as hydroxyl-terminated polydimethylsiloxane (PDMS-OH) and cetyl trimethyl ammonium bromide (CTAB) has been developed denoted as TEOS/PDMS-OH/CTAB composite coating material. The hydrophobic property, surface morphology, and abilities to resist acid corrosion and salt crystallization weathering have been measured to evaluate the stone protection performance of as-prepared TEOS/PDMS-OH/CTAB composite coating materials. The results demonstrate that the addition of PDMS-OH contributes to improve the hydrophobic properties of sandstones. The addition of CTAB to the siloxane composition results in the formation of superficial protrusions with a micro- and nanoscopic structure and overall alteration of surface morphology and roughness, thus preventing the cracking during the drying process. In addition, after treatment by TEOS/PDMS-OH/CTAB composite coating materials, the sandstone has improved the abilities to resist acid and salt crystallization weathering significantly. These advantages make TEOS/PDMS-OH/CTAB composite coating materials exhibit good comprehensive performance in terms of stone heritage protection.
Synthesis of TEOS/PDMS-OH/CTAB composite coating material as a new stone consolidant formulation
Liu, Yurong (Autor:in) / Liu, Jia (Autor:in)
Construction and Building Materials ; 122 ; 90-94
14.06.2016
5 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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