A STUDY OF POLYTITANOSILOXANE COATING ON ALUMINIUM PREPARED BY SYNTHESIS THROUGH TWO-STEP ACID AND BASE CATALYSIS

J Chin Soc Corr Pro

1995, Vol. 15

Issue (1): 35-42 DOI:

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A STUDY OF POLYTITANOSILOXANE COATING ON ALUMINIUM PREPARED BY SYNTHESIS THROUGH TWO-STEP ACID AND BASE CATALYSIS

Wu Runde(Zhejiang University of Technology)

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Abstract Polytitanosiloxane (PTS) coating was prepared by hydrolysis-polymerizat ion synthesis from precursor sol-solutions consisting of N-[3(triethoxysilyl) propy]4,5 dihydroimidazole, Ti(OC2H5)4, methanol and water by means of twrvstep acid-base catalysis. These solutions were spreed over aluminium substrate, then the quasi-inorganic coatings of different thickness were formed by Pyrolysis-release of carbonaceous species. The following faCtors were considered as playing important roles for corrosion resistance of the coatings:1. film thickness and pyrolysis temperature:2. interface between film and substrate;3. wettability of the coatings.

Key words: Polytitanosiloxane Polymetallosiloxane Organopolysiloxane Coating Catalyst Synthesis

Received: 25 February 1995

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Wu Runde(Zhejiang University of Technology). A STUDY OF POLYTITANOSILOXANE COATING ON ALUMINIUM PREPARED BY SYNTHESIS THROUGH TWO-STEP ACID AND BASE CATALYSIS. J Chin Soc Corr Pro, 1995, 15(1): 35-42.

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y1995/V15/I1/35

1SugamaT．TaylorC．J．ofMaterialsScience．1992．27:17232SugamaT,KuhackaLE,CorcielloN．ProgressinOrganicCoatings,1990,18:1733SugamaT．CarcielloN．MiuraM．ThinSolidFilm．1992．216:2494LeeSW．CondrateSrRA．J．ofMaterialsScience,1988,23:29515SmithAL．SpectroChem．Acta,1960,16:87

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