Preparation and Evaluation of Paint One and Two Shells Micro-capsules | ||
| Egyptian Journal of Chemistry | ||
| Article 9, Volume 62, Issue 5, May 2019, Pages 885-896 PDF (5.45 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ejchem.2018.5286.1467 | ||
| Authors | ||
| Ahmed Ramadan1; Ahmed Adly Amer* 2; Abdel aziz Gomaa3 | ||
| 1Helwan university-faculty of science | ||
| 2Ministry of military production | ||
| 3Pacchin company- former head of quality sector | ||
| Abstract | ||
| There are two basic forms of micro-capsules, 1st form is covered by one shell made of urea-formaldehyde, while the 2nd one is covered by two shells (first one is urea-formaldehyde and the second one made of poly-urethane). Both forms are filled with two types of corrosion inhibitor (corr A and the other is corr B). Many tests are performed; Optical microscope scanning was applied to the micro-capsules in order to confirm the formation of capsules. Micro-capsules were weighed in order to measure the shrinking rate under heating of the micro-capsules. Infra-red spectroscopy was applied to make sure of the formation of shells of the micro-capsules. Physical properties were monitored weekly to confirm the stability of the micro-capsules. The purpose of preparing theses micro-capsules is to install a system of self-healing paints for corrosion protection. | ||
| Keywords | ||
| Micro-capsules – one shell – two shells – surfactant – shrinking time | ||
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