Effect of Poly Vinyl Alcohol (PVA) on the size of Linseed Oil (LO) microcapsule self-healing coating

Abd Yazid, Nurul Shuhadah (2016) Effect of Poly Vinyl Alcohol (PVA) on the size of Linseed Oil (LO) microcapsule self-healing coating. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

This research involves studying the effect of various concentrations (wt. %) with different volume (ml) of Poly vinyl Alcohol, PVA on the encapsulated linseed oil microcapsule size. There are several studies discussed about the essence of various concentrations of Poly vinyl Alcohol, PVA on the linseed oil microcapsule attributes. However, on that point is no systematic research on this claim. In the in situ emulsion polymerization, linseed oil-Poly urea formaldehyde are used as a core and shell material to produce microcapsule self-healing coating. PVA act as stabilizers for a stable emulsion of the microcapsules. Next, PVA is manipulated to investigate the influence of various concentrations with different volume on the microcapsule size phenomena of the microcapsule formation. Then, during the sample processing via in situ emulsion polymerization method, the constant temperature, agitation rate and reaction time are used which are 50ºC, 500rpm and 4h. Simply, some modification on an agitation rate reduce to 300 rpm. Thus, the sample is characterized using SEM to characterize the microcapsule size and formation and also the FTIR analysis to examine the composition of the core and shell material.

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