Alkyd resin from rubber seed oil/linseed oil blend: A comparative study of the physiochemical properties

Otabor, Godfrey O.; Ifijen, Ikhazuagbe H.; Mohammed, F.U.; Aigbodion, A. I.; Ikhuoria, Esther U.

doi:10.1016/j.heliyon.2019.e01621

Cited by 48 publications

(31 citation statements)

References 20 publications

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“…The specific gravity of the test alkyd resins was not considerably greater than the specific gravity of the control alkyd resins (47.40) and the viscosity of commercially manufactured alkyd resin (32.34 m2/s). These results were comparable to those found in Otabor's work [20], implying that the test alkyd resins will outperform commercially available varieties in industrial applications if well-controlled.…”

Section: Physico-chemical Properties Of the Theventia Peruviana Alkyd...supporting

confidence: 82%

Synthesis and Evaluation of Alkyd Resins from Underutilized (Delonix Regia and Theventia Peruviana) Seed Oils

Mustapha

Adisa

Oladele

et al. 2022

IJOIR

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The inedibility of delonix regia and theventia peruviana seeds represents a significant waste of resources. The physicochemical properties of underutilized seed oils after refinement were studied using Association of Officials of Analytical Chemists (AOAC, 1990) techniques in this study. The refined theventia peruviana oil (RTPO) has a yield of 40.55 %, but its long alkyd resin (LTPOAR) has iodine value of 80.12 (gI2/100g), viscosity 24.17 (30o C, m2/s), saponification value of 177.04 (mg/KOH/100g), and acid value of 9.53 (mg/KOH/g), while refined delonix regia oil (RFBO) has a yield of 52.71 %, with its long alky resin (LDROAR) having iodine value of 133.87 (gI2/100g), viscosity 21.15 (30o C, m2/s), saponification value of 266.42 (mg/KOH/100g), and acid value of 5.71 (mg/KOH/g). For both TPOAR and DROAR, six grades of alkyds were created at 25 % (short), 40 % (medium), and 60 % (long) oil lengths. The acid values of the aliquots for the reaction mixture at various time intervals were used to track the reaction's progress. At the initial stage of the reaction, the extent of reaction (% Pav) ranged from 78.5 to 80.8 %, indicating a significant degree of conversion. The average degree of polymerization (Dp) of the alkyds ranged from 1.03 to 5.20, indicating the synthesis of high molecular weight alkyds. The alkyd films were acid, brine, and water resistant, but not alkali resistant. All alkyd resins were characterized with surface drying and solubility times and were found to be around 2 hours in respect of the 60% oil length.

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Section: Physico-chemical Properties Of the Theventia Peruviana Alkyd...supporting

confidence: 82%

Synthesis and Evaluation of Alkyd Resins from Underutilized (Delonix Regia and Theventia Peruviana) Seed Oils

Mustapha

Adisa

Oladele

et al. 2022

IJOIR

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“…The high percentage yield of the Afzelia africana aril cap oil revealed by the results (Table 1) indicates its availability and sustainability for commercial use. The moderate value of iodine shows a reasonable amount of unsaturation that is readily available for sulphonation reaction [21]. The sulphonated oil synthesized was virtually free from inorganic salts.…”

Section: Physicochemical Propertiesmentioning

confidence: 97%

Evaluation of the leather fatliquoring potential of sulphonated Afzelia africana aril cap oil

Nkwor

Ukoha

2020

Heliyon

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The synthesis, properties, characterization and sulphonation of Afzelia africana aril cap oil were examined to establish its leather fatliquoring potential. The analysis of the Afzelia africana aril cap oil before and after the completion of sulphonation process was carried out in order to confirm the modification of the oil. The physicochemical properties showed a marked difference between both analyzed oils as the melting point, acid value, free fatty acid, iodine value, saponification value and % SO 3 of the unsulphonated/sulphonated oil were observed to be 6.39 C; 19.90 C, 12.99 mg KOH/g; 0.50 mg KOH/g, 6.50; 5.25, 77 g iodine/100g; 21 g iodine/100g, 185 mg KOH; 176 mg KOH and nil; 3.92 % respectively. The fatliquoring potential was examined and compared with commercial fatliquor using standard methods. A significant improvement in the lubrication and mechanical properties of the leather treated with the sulphonated Afzelia africana aril cap oil was revealed by Sudan stain and Tensile strength; Double edge Tear; Elongation at break test results respectively. The improved lubrication and mechanical properties of the treated leather compared favourably with commercial fatliquor. This study shows that aril caps of A. africana of no commercial value can be a source of fatliquor for the leather industry.

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“…Lipid-based films have the highest resistance degree to moisture migration compared to protein and polysaccharide films, but they are difficult to apply due to their thickness and greasy surface. A group of authors has reported (Wang et al, 2019;Otabor et al, 2019) flaxseed oil to be used for composite films formation, which are based on chitosan and potato protein. In that way, the addition of flaxseed oil contributes to an excellent moisture barrier and elastic and durable films formation, due to the high percentage of polyunsaturated fatty acids in flaxseed oil, which absorb oxygen from the air.…”

Section: Biopolymers For Edible Oils Packagingmentioning

confidence: 99%

A review of biopolymer films application for sustainable packaging of edible oils

Popović¹

2021

J Proc Ener Agri

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Lipid oxidation is a major cause of off-flavors and loss of nutrients in fat-containing foods and oils. The prevention or retardation of those deteriorative reactions of oil during processing and storage is required. Commercially available synthetic packaging materials are causing serious environmental problems due to their non-degradability. To reduce environmental impacts associated with synthetic plastics, biopolymer materials have a great potential to be used instead. Further, biopolymers play an important role in food preservation because of their antioxidant and antimicrobial activities. Packing system comprise of natural active materials can improve shelf life of oil packed, minimize oxidation and improve mechanical, barrier and biological properties of biopolymer films. In this paper, to determine effect of usage biopolymer materials for oil packing, different edible oils and biopolymer materials were observed.

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Alkyd resin from rubber seed oil/linseed oil blend: A comparative study of the physiochemical properties

Cited by 48 publications

References 20 publications

Synthesis and Evaluation of Alkyd Resins from Underutilized (Delonix Regia and Theventia Peruviana) Seed Oils

Synthesis and Evaluation of Alkyd Resins from Underutilized (Delonix Regia and Theventia Peruviana) Seed Oils

Evaluation of the leather fatliquoring potential of sulphonated Afzelia africana aril cap oil

A review of biopolymer films application for sustainable packaging of edible oils

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