Improving coating characteristics of palm stearin alkyd by modification with ketone resin

Azimi, Alireza; Yahya, Rosiyah; Gan, Seng Neon

doi:10.1016/j.porgcoat.2013.01.001

Cited by 15 publications

(17 citation statements)

References 50 publications

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“…The gloss value of the alkydketone blends measured to 60 • were between 74 and 82. The hardness of the blends increased with the content of ketone resin, but the drying time decreased [12].…”

Section: Introductionmentioning

confidence: 95%

Hyperbranched phenolic-alkyd resins with high solid content

Vallejo

López

Murillo

2015

Progress in Organic Coatings

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Section: Introductionmentioning

confidence: 95%

Hyperbranched phenolic-alkyd resins with high solid content

Vallejo

López

Murillo

2015

Progress in Organic Coatings

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“…The name alkyd is derived from the alcohol and acid monomers used to make the polyester polymer, and an alkyd resin is an oil modified alkyd polyester [21][22] . A simple alkyd is generally composed of phthalic anhydride (difunctional), glycerol (trifunctional) and linoleic acid 23 .…”

Section: Ft-ir Analysis On Linfoil®mentioning

confidence: 99%

Application of spectroscopic techniques for the study of the surface changes in poplar wood and possible implications in conservation of wooden artefacts

et al. 2013

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The aim of this work is to study the surface modifications of poplar (Populus spp.) wood by reflectance spectrophotometry and Fourier Transform Infrared (FT-IR) spectroscopy in order to understand the mechanisms that cause the changes and to suggest possible solutions to avoid the degradation phenomena. Since colour changes on wood surfaces are due to photo degradation of its chemical constituents, the study of the relationship between CIELAB colour changes and changes in chemical composition due to irradiation is of practical importance both in cultural heritage and in contemporary artefacts and objects.Concerning the surface protection of wood, starting from the results obtained by testing different commercial products, the attention has been focused on Linfoil®, a novel organic preservative/consolidant product that seems to attract a great interest in the field of conservation of wooden artefacts. Linfoil® was chosen and analysed in order to understand its composition and its time stability using reflectance spectrophotometry, FT-IR spectroscopy and analytical pyrolysis coupled to a gas chromatographic-mass spectrometric system.Colour monitoring allowed to find that wood surface colour undergoes an important variation due to photo-irradiation, occurring within the first 24 hours and mainly due to L* decrease and b* increase. Though Linfoil® treatment modifies wood colour, nevertheless it seems to protect wood surface by reducing the yellowish. FT-IR spectroscopy allowed to investigate the rate of photo-degradation of wood surface due to lignin oxidation. The most important result is that a correlation of the colour changes may be derived with the photo-degradation of lignin obtained by FT-IR analysis.

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“…The problem of insufficient unsaturation could be overcome through the incorporation of maleic anhydride or fumaric acid into the alkyd structures, to make them UV-curable [16,17]. Further exploration of palm oil derivatives has produced many new coating resins that have various film properties [18,19,20,21]. In 2014, a US patent was granted for a palm oil-based polyurethane oligomer for use as a restorative dental material [22].…”

Section: Introductionmentioning

confidence: 99%

UV-Curable Urethane Acrylate Resin from Palm Fatty Acid Distillate

2018

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Palm fatty acid distillate (PFAD), is a by-product of the crude palm oil refining process. It comprises mainly of free fatty acids—around 45% palmitic and 33% oleic acids—as the major components. Ultra-violet (UV) curable urethane acrylate (UA) oligomers could be synthesized from PFAD, by the following procedure. A hydroxyl terminated macromer was first prepared by reacting PFAD with a mixture of isophthalic acid, phthalic anhydride, neopentagylcol (NPG), and pentaerythritol. The macromer was then reacted with 2-hydroxylethylacrylate (2HEA) and toluene diisocynate (TDI) to generate a resin, containing acrylate side chains for UV curable application. A series of UA resins were prepared by using 15, 25, 45, 55, and 70% of PFAD, respectively. The UA resin has Mw in the range of 3,200 to 27,000. They could be cured by UV irradiation at an intensity of 225 mW/cm2. Glass transition temperature (Tg) of the cured film was measured by differential scanning calorimeter (DSC), and hardness of the film was determined by a pendulum hardness tester, according to American Society for Testing and Materials (ASTM)4366. The resins were used in a wood-coating application. All of the cured films showed good adhesion, hardness, and chemical resistance except for the one using the 70% PFAD, which did not cure properly.

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Improving coating characteristics of palm stearin alkyd by modification with ketone resin

Cited by 15 publications

References 50 publications

Hyperbranched phenolic-alkyd resins with high solid content

Hyperbranched phenolic-alkyd resins with high solid content

Application of spectroscopic techniques for the study of the surface changes in poplar wood and possible implications in conservation of wooden artefacts

UV-Curable Urethane Acrylate Resin from Palm Fatty Acid Distillate

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