Synthesis and Evaluation of Alkyd Resins from Underutilized (Delonix Regia and Theventia Peruviana) Seed Oils
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 refine...
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Corporation of Research and Industrial Development
2022-06-01
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| Series: | Iraqi Journal of Industrial Research |
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| Online Access: | http://ijoir.gov.iq/ijoir/index.php/jou/article/view/148 |
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| author | Aliru O. Mustapha Saliu F. Adisa Simeon G. Oladele Yemisi T. Afolabi |
| author_facet | Aliru O. Mustapha Saliu F. Adisa Simeon G. Oladele Yemisi T. Afolabi |
| author_sort | Aliru O. Mustapha |
| collection | DOAJ |
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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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| format | Article |
| id | doaj-art-e821b2bd9fd24a2a8b8be9cd7f043297 |
| institution | Kabale University |
| issn | 2788-712X |
| language | English |
| publishDate | 2022-06-01 |
| publisher | Corporation of Research and Industrial Development |
| record_format | Article |
| series | Iraqi Journal of Industrial Research |
| spelling | doaj-art-e821b2bd9fd24a2a8b8be9cd7f0432972025-01-10T05:59:00ZengCorporation of Research and Industrial DevelopmentIraqi Journal of Industrial Research2788-712X2022-06-019110.53523/ijoirVol9I1ID148148Synthesis and Evaluation of Alkyd Resins from Underutilized (Delonix Regia and Theventia Peruviana) Seed OilsAliru O. Mustapha0Saliu F. Adisa1Simeon G. Oladele2Yemisi T. Afolabi3Kwara State University, Malete – NigeriaKwara State University, Malete – NigeriaKwara State University, Malete – NigeriaKwara State University, Malete – Nigeria 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. http://ijoir.gov.iq/ijoir/index.php/jou/article/view/148Alkyd resinPolymerizationDelonix regiaTheventia peruviana |
| spellingShingle | Aliru O. Mustapha Saliu F. Adisa Simeon G. Oladele Yemisi T. Afolabi Synthesis and Evaluation of Alkyd Resins from Underutilized (Delonix Regia and Theventia Peruviana) Seed Oils Iraqi Journal of Industrial Research Alkyd resin Polymerization Delonix regia Theventia peruviana |
| title | Synthesis and Evaluation of Alkyd Resins from Underutilized (Delonix Regia and Theventia Peruviana) Seed Oils |
| title_full | Synthesis and Evaluation of Alkyd Resins from Underutilized (Delonix Regia and Theventia Peruviana) Seed Oils |
| title_fullStr | Synthesis and Evaluation of Alkyd Resins from Underutilized (Delonix Regia and Theventia Peruviana) Seed Oils |
| title_full_unstemmed | Synthesis and Evaluation of Alkyd Resins from Underutilized (Delonix Regia and Theventia Peruviana) Seed Oils |
| title_short | Synthesis and Evaluation of Alkyd Resins from Underutilized (Delonix Regia and Theventia Peruviana) Seed Oils |
| title_sort | synthesis and evaluation of alkyd resins from underutilized delonix regia and theventia peruviana seed oils |
| topic | Alkyd resin Polymerization Delonix regia Theventia peruviana |
| url | http://ijoir.gov.iq/ijoir/index.php/jou/article/view/148 |
| work_keys_str_mv | AT aliruomustapha synthesisandevaluationofalkydresinsfromunderutilizeddelonixregiaandtheventiaperuvianaseedoils AT saliufadisa synthesisandevaluationofalkydresinsfromunderutilizeddelonixregiaandtheventiaperuvianaseedoils AT simeongoladele synthesisandevaluationofalkydresinsfromunderutilizeddelonixregiaandtheventiaperuvianaseedoils AT yemisitafolabi synthesisandevaluationofalkydresinsfromunderutilizeddelonixregiaandtheventiaperuvianaseedoils |