The effect of microcrystalline cellulose (MCC) on coating paint film's surface performance as non-stick coating

摘要

Purpose The effect of using microcrystalline cellulose (MCC) as an additive in coating paint films for non-stick coatings was studied in this work. This paper aims to discuss the benefits of MCC blended in the coating paint film that consists of poly(methyl methacrylate) (PMMA) and dammar. Design/methodology/approach PMMA and dammar mixed at a specific Wt.% ratio with xylene as its solvent. Two sets of mixtures were prepared, where one mixture contained MCC and another, without. The mixtures were applied to metal substrates as coating paint films. The performance of the non-stick coating paint film was observed through the adhesive test between adhesion layers on the coating paint film and also through the cross-hatch test for the adhesion of the non-stick coating paint film to the metal substrate. The results correlate with the surface roughness and glossiness tests. Findings The results showed that for the coating paint films, Sample B consisted of 80:20 Wt.% ratio of PMMA-dammar with an addition of 5 Wt.% MCC had an excellent performance as non-stick coating paint films. The MCC formed microparticles on the surface of the coating paint film sample and this causes the coating paint film samples with MCC to develop a rougher surface compared to the coating paint film without MCC. Sample B coating paint film had the highest average surface roughness (Ra) of 383 mu m. The cross-hatch test showed the coating paint film with the addition of MCC had stronger adhesiveness on the substrate's surface thus prevents the coating from peeling off from the surface. Practical implications The developed coating paint film in this study would be suitable for outdoor applications to prevent illegal advertisements and stickers. Originality/value MCC added to the coating paint film improves the surface performance as a non-stick coating.