Acid and alkali resistance of Acrylic polyurethane/R‐SiO 2 nanocomposite coating
In: Vietnam Journal of Chemistry, Jg. 58 (2020), Heft 1, S. 67-73
academicJournal
Zugriff:
The purpose of this study is to assess the influence of R‐SiO 2 nanoparticles on acid and alkali resistance of acrylic polyurethane coating. The resistance of the coatings with and without 2.5 wt.% R‐SiO 2 nanoparticles in 5 % HCl solution and 5 % NaOH solution was investigated by monitoring the variations in functional groups of the coatings using IR spectroscopic analysis and the changes in their morphology using FE‐SEM analysis, as well as their weight loss analysis. The results showed that R‐SiO 2 nanoparticles at content of 2.5 wt.% significantly increased the acid and alkali resistance of acrylic polyurethane coating. After 20 days of immersion in 5 % HCl solution and 5 % NaOH solution, the nanocomposite coating containing 2.5 % R‐SiO 2 nanoparticles changed negligibly with a weight loss of about 1 % while the coating not containing R‐SiO 2 nanoparticles was deformed seriously with a weight loss of about 3 %.
Titel: |
Acid and alkali resistance of Acrylic polyurethane/R‐SiO 2 nanocomposite coating
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Autor/in / Beteiligte Person: | Mai, Nguyen Thi ; Anh, Bui Thi Mai ; Vuong, Nguyen Thien |
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Zeitschrift: | Vietnam Journal of Chemistry, Jg. 58 (2020), Heft 1, S. 67-73 |
Veröffentlichung: | Wiley, 2020 |
Medientyp: | academicJournal |
ISSN: | 2572-8288 |
DOI: | 10.1002/vjch.2019000124 |
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