Effect of urea formaldehyde viscosity on urea formaldehyde and urea proparaldehyde copolymer composite

Osemeahon, S. A.; Barminas, JT; Aliyu, B.; Fai, F.Y

doi:10.4314/ijbcs.v2i4.39781

Cited by 5 publications

(8 citation statements)

References 14 publications

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“…Melting points of each resins of the binders were determined by using Stuart melting point machine (Model SMP 10). Triplicate determinations were made and average value was taken [7,10].…”

Section: Melting Point Determination Of the Eps Bindermentioning

confidence: 99%

“…To find EPS's water solubility, 2 milliliters of the resin were mixed with the necessary 20 milliliters of distilled water. According to Osemeahon and Dimas [7], the transparency or cloudiness of the samples indicated whether they were soluble or insoluble in water.…”

Section: Water Solubility Determination Of the Eps Bindermentioning

confidence: 99%

“…By employing Osemeahon method [7], the paint samples' drying times were assessed. Every 25milliliter paint sample was formulated was applied to a ceiling board that had been primed with yellow paint and allowed to cure at room temperature.…”

Section: Drying Time Of the Emulsion Paintmentioning

confidence: 99%

“…Then viscosity increases gradually with increase in EPS concentrations, between 20-25%, there is sharp increase of viscosities. This may be attributed to the increase in molecular weight and the degree of polymerization due to crosslinking interactions between the resins macromolecules [7] being the base component, the viscosity of the binder is very important in the effects of paint factors such as sagging, leveling, flow rate, adhesion et cetra.…”

Section: Effect Of Concentration On the Viscosity Of Eps Bindermentioning

confidence: 99%

“…Volatile organic compounds (VOCs) are dangerous substances that can escape into the atmosphere when traditional solvent-based paints dry and cure. Conversely, emulsion paints are safer and more environmentally friendly for interior use due to their low volatile organic compound (VOC) levels [7]. Emulsion paint's water-based composition also makes it simple to use and clean up after.…”

Section: Introductionmentioning

confidence: 99%

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Formulation of Emulsion Paint Derived from Waste Expanded Polystyrene as a Binder

Titus,

Kalu,

Saa-Aondo

et al. 2024

AJOCS

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Emulsion paint, also known as water-based paint, is a type of paint that consists of small water droplets suspended in a binder. The binder, typically made of acrylic or vinyl acetate polymers, acts as a film-forming agent that holds the pigments and other additives together. Emulsion paint was formulated from waste expanded polystyrene as a binder. The formulated emulsion paint which underwent a three-staged process had a pH of 7.82, density of 1.31 g/cm3, the drying time was 15-20 and 85-90 minutes for the set to touch and set to hard drying times respectively, viscosity of 10.4 Cp. The formulated paint exhibited good adhesion, tackiness, opacity, flexibility and stability properties. The paint also possessed good resistance to blistering; which indicates that it has good external exposure resistance and thus; can perform well when exposed to environmental conditions such as rain and sun. Effects of concentration on viscosity, density, melting point, refractive index, moisture uptake, turbidity, elongation at break and water solubility were studied for the polystyrene binder to ascertain for its suitability. Fourier transform infrared spectrophotometer was employed to characterized the binder. This investigation revealed favourable properties of a conventional emulsion paint inherent in the formulated polystyrene binder derived emulsion paint such as, drying time, moisture uptake, water solubility.

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“…Melting points of each resins of the binders were determined by using Stuart melting point machine (Model SMP 10). Triplicate determinations were made and average value was taken [7,10].…”

Section: Melting Point Determination Of the Eps Bindermentioning

confidence: 99%

Section: Water Solubility Determination Of the Eps Bindermentioning

confidence: 99%

Section: Drying Time Of the Emulsion Paintmentioning

confidence: 99%

Section: Effect Of Concentration On the Viscosity Of Eps Bindermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Formulation of Emulsion Paint Derived from Waste Expanded Polystyrene as a Binder

Titus,

Kalu,

Saa-Aondo

et al. 2024

AJOCS

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A Self-Healing Material Based on Microcapsules of Poly(Urea-Formaldehyde)/Bis-Propargyl-Succinate Containing in Polyurethane Matrix

Vo¹,

Vo²

2021

Journal of the Turkish Chemical Society Section A: Chemistry

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With the development of current technology, several concepts of self-healing materials (SHMs) have recently been proposed, and capsule-based SHMs are explored. In our study, a terminal alkyne compound (bis-propargyl-succinate, BPS) is concerned as a healing agent to be used as a core material, and poly(urea-formaldehyde) (PUF) is employed as a wall shell. Besides, the chemical, morphological and thermal properties of the microcapsules (MCs) are also determined by Fouriertransform infrared spectroscopy (FTIR), gas chromatography (GC), thermogravimetric analysis (TGA), and optical microscopy (OM). Additionally, the MCs have better thermal stability up to 257 °C with the rough outer surface. The MCs have successfully encapsulated 75.0% of BPS with a size range of 63 -125 μm and PUF shell thickness range of 5.72 -11.35 μm; moreover, the stability of MCs is well maintained within 50 days at room temperature basing on the solvent extraction method. Concomitantly, self-healing ability is activated by the breakup of the MCs as cracks, then the healing agent (BPS) is released into the cracked regions to react with azide groups of the polymeric matrix. The BPS in the MCs is moved to cracked regions, which involves MCs diameter and weight fraction of PUF capsules. Moreover, the self-healing ability can reach high when BPS amounts (i.e., SHMs containing 5% and 10% of MCs) are available sufficiently to be outrightly filled into the cracked regions. Thereby, MCs' size and weight fraction can be reasonably selected to result in an optimal healing capacity for a preestablished size of cracks.

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Üre-Formaldehit Reçinesi Katı Atıklarının Tarımsal Gübre Olarak Kullanımı

Eryilmaz,

Demirarslan,

Aykan

2024

Karadeniz Fen Bilimleri Dergisi

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Bu araştırmada temel amaç; orman ürünleri sanayinde çıkan üre-formaldehit reçineleri (UFR) atıklarının, çevre dostu sayılabilecek “iyi tarım” uygulamalarında gübre olarak, nasıl yeniden kullanılabileceğini incelemektir. Yani esas hedef, UFR atıklarının tarımsal faaliyetlerde kullanılmasının, bitki büyümesi üzerindeki etkilerini değerlendirmek ve bu atıkların çevresel sürdürülebilirlik açısından potansiyelini ortaya koymaktır. Çalışma, UFR atıklarının tarım sektöründe verimli bir şekilde kullanıldığında olumlu etkiler sağladığını göstermektedir. Bu atıkların toprak verimliliğini artırdığı, bitki büyümesini teşvik ettiği ve topraktaki besin maddelerinin daha etkili bir şekilde kullanılmasına olanak tanıdığı belirlenmiştir. Ayrıca, UFR atıklarının çevre dostu bir gübre kaynağı olarak kullanılması, atık yönetimi ve tarım uygulamaları arasındaki çevresel ve ekonomik bağlantıyı güçlendirecektir. Bu çalışmada, UFR atıklarının tarımsal gübre olarak kullanılmasının sürdürülebilir bir strateji olabileceği ve bu yaklaşımın çevresel faydalarının yanı sıra tarım sektöründeki ekonomik etkilerini de iyileştirebileceği ortaya konulmuştur. Bu bağlamda; UFR atıkları dâhil tüm atıkların verimli bir şekilde değerlendirilmesi, çevre dostu olabilecek “iyi tarım” uygulamalarının teşvik edilmesi ve tarımın sürdürülebilirliğine katkıda bulunulması, önemli bir araştırma önerisidir.

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Effect of urea formaldehyde viscosity on urea formaldehyde and urea proparaldehyde copolymer composite

Cited by 5 publications

References 14 publications

Formulation of Emulsion Paint Derived from Waste Expanded Polystyrene as a Binder

Formulation of Emulsion Paint Derived from Waste Expanded Polystyrene as a Binder

A Self-Healing Material Based on Microcapsules of Poly(Urea-Formaldehyde)/Bis-Propargyl-Succinate Containing in Polyurethane Matrix

Üre-Formaldehit Reçinesi Katı Atıklarının Tarımsal Gübre Olarak Kullanımı

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