Development of Monomethylol Urea for Coating Application: Effect of Time on Synthesis

Abstract

Monomethylol Urea (MMU) was synthesis using the one step process, The MMU was characterized and evaluated at different Time interval. The viscosity, density, gel time, elongation at break, Refractive index, Turbidity as well as melting points were observed to either increase or decrease with increasing time interval with their optimal at 60 min. while the formaldehyde emission and moisture uptake decreases with increasing time interval. Observations on solubility test shows that MMU resins were soluble from 0-60 min time interval beyond which it becomes insoluble, this is an indicator to the paint formulator that above this time interval, MMU cannot be used for paint formulation.

Formulation of emulsion paint using benign HGSO/PVAc copolymer as a binder

“…emit formaldehyde, as compared to copolymer of Urea formaldehyde and Polyethylene (UF/PE) binder as reported by Osemeahon and Archibong [19] and urea formaldehyde with polyvinyl acetate (UF/PVAc) as reported by Iqbal, et al [23]. The novel PVAc/HGSO copolymer binder also has better viscosity compared to monomethylol urea binder reported by Archibong, et al [24] and improved density reported for blend of Polyvinyl acetate and Hydroxylated Neems Seed Oil (HNSO/PVA) copolymer binder by Muhammad and Yelwa [18]. This showed that paint made from this novel copolymer binder will be flexible on application, with good adhesive property on substrate.…”