Physical and Mechanical Properties of Different Ratios of Palm Oil-Based Alkyd/Epoxy Resins

Issam, A. M.; Khizrien, A. K. Nurul; Mazlan, I.

doi:10.1080/03602559.2011.578289

Cited by 19 publications

(12 citation statements)

References 10 publications

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“…Both of the polyurethanes showed excellent result and resistance in water. In alkali solution, the result for TPPUs showed poor results whilst TSPUs showed good results and this due to the presence of the alkali hydrolysable ester groups of monoglyceride segments 27,30 . Velayutham et al 2009 31 affirmed affirmed that alkali had greater detrimental effect or destructive on the coating than acid.…”

Section: Corrosion Resistancesmentioning

confidence: 99%

Structure-Property Studies of Thermoplastic and Thermosetting Polyurethanes Using Palm and Soya Oils-Based Polyols

Mohammed¹,

Al-Mulla²,

Kadar³

et al. 2013

J. Oleo Sci.

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Section: Corrosion Resistancesmentioning

confidence: 99%

Structure-Property Studies of Thermoplastic and Thermosetting Polyurethanes Using Palm and Soya Oils-Based Polyols

Mohammed¹,

Al-Mulla²,

Kadar³

et al. 2013

J. Oleo Sci.

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“…It is also possible to achieve by physical modification, creating a chemical cross-linking mechanism, blending or via interpenetrating network formation with the other polymers. Epoxy resins are one of the most important classes of thermosetting matrices, which possess good mechanical, thermal, dielectric behavior, low shrinkage during curing, low creep, good adhesive strength, excellent corrosion and weather resistance, good chemical resistance, dimensional stability, wide range of cure schedules and their easy processibilities [9][10][11][12][13]. Polyurethane can be linked to the epoxy network through physical as well as chemical bonding and so it is used to modify polyurethane [14,15].…”

Section: Introductionmentioning

confidence: 99%

Epoxy modified bio-based hyperbranched polyurethane thermosets

Kalita

Karak

2012

Designed Monomers and Polymers

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Modification of the existing polymers leads to improvement of many desirable properties. Hence, prepared hyperbranched polyurethane was modified with different amounts of bisphenol-A based epoxy resin. The modified system was cured by cycloaliphatic amine hardener at 120°C for a specified period of time. The curing reaction was confirmed by Fourier transform infrared spectroscopy and swelling study. The tensile strength (5.5-16 MPa), scratch hardness (3-10 kg) and gloss (85°-94°) increased with the increase of epoxy content. The thermo-gravimetric analysis showed the enhancement of thermal stability (240-291°C) of the modified systems. Biodegradation was tested by the broth culture technique and the modified hyperbranched polyurethanes also exhibited adequate biodegradation. Incorporation of reactive modifier into the polyurethane network was demonstrated to be an effective way to improve the thermal and mechanical properties, simultaneously.

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“…Soya oil polyol was prepared via transesterification of triglycerides with glycerol as the procedure reported by Issam et al 22 . It had 251 mg KOH/g of OH number, equiva- …”

Section: Methodsmentioning

confidence: 99%

“…7. The thermo-stability of polyurethanes based on vegetable oil-polyol would depend on the functionality and structural differences of the polyol 27 in addition to the number of aromatic moieties and the urethane linkages, as they can withstand a suitable amount of heat 22 .…”

Section: Thermogravimetric Analysis Tgamentioning

confidence: 99%