Waterborne polyurethane dispersions synthesized from jatropha oil
A series of waterborne polyurethane dispersions derived from jatropha oil-based polyol (JOL) with different OH numbers ranging from 138 to 217 mgKOH/g, were successfully prepared. Jatropha oil-based polyols were synthesized by epoxidation and oxirane ring opening using methanol. The JOLs produced we...
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| Format: | Article |
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Elsevier
2015
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| _version_ | 1796972824387125248 |
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| author | Saalah, Sariah Abdullah, Luqman Chuah Aung, Min Min Salleh, Mek Zah Awang Biak, Dayang Radiah Basri, Mahiran Jusoh, Emiliana Rose |
| author_facet | Saalah, Sariah Abdullah, Luqman Chuah Aung, Min Min Salleh, Mek Zah Awang Biak, Dayang Radiah Basri, Mahiran Jusoh, Emiliana Rose |
| author_sort | Saalah, Sariah |
| collection | UPM |
| description | A series of waterborne polyurethane dispersions derived from jatropha oil-based polyol (JOL) with different OH numbers ranging from 138 to 217 mgKOH/g, were successfully prepared. Jatropha oil-based polyols were synthesized by epoxidation and oxirane ring opening using methanol. The JOLs produced were then used to prepare jatropha oil based waterborne polyurethane (JPU) dispersions by reaction with isophrene diisocyanate (IPDI). Dimethylol propionic acid (DMPA) was used as an internal emulsifier to enable the dispersion of polyurethane in water. The influence of the OH number, DMPA content and hard segment content on the stability of the wet JPU dispersions, as well as the physical, mechanical and thermal properties of the dry JPU films were investigated. The results reveal that with increasing OH number, the DMPA content and hard segment content significantly decrease the particle size from 1.1 μm to 53 nm, indicating increasing stability of the dispersions. JPU films exhibit the stress–strain behavior of an elastomeric polymer with a Young's modulus ranging from 1 to 28 MPa, a tensile strength of 1.8 to 4.0 MPa and elongation at break ranging from 85 to 325%. The polyurethane dispersions synthesized in this work possess good pendulum hardness, water repellence and thermal stability with promising application as a binder for wood and decorative coatings. |
| first_indexed | 2024-03-06T08:34:03Z |
| format | Article |
| id | upm.eprints-36008 |
| institution | Universiti Putra Malaysia |
| last_indexed | 2024-03-06T08:34:03Z |
| publishDate | 2015 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | upm.eprints-360082016-02-15T01:09:21Z http://psasir.upm.edu.my/id/eprint/36008/ Waterborne polyurethane dispersions synthesized from jatropha oil Saalah, Sariah Abdullah, Luqman Chuah Aung, Min Min Salleh, Mek Zah Awang Biak, Dayang Radiah Basri, Mahiran Jusoh, Emiliana Rose A series of waterborne polyurethane dispersions derived from jatropha oil-based polyol (JOL) with different OH numbers ranging from 138 to 217 mgKOH/g, were successfully prepared. Jatropha oil-based polyols were synthesized by epoxidation and oxirane ring opening using methanol. The JOLs produced were then used to prepare jatropha oil based waterborne polyurethane (JPU) dispersions by reaction with isophrene diisocyanate (IPDI). Dimethylol propionic acid (DMPA) was used as an internal emulsifier to enable the dispersion of polyurethane in water. The influence of the OH number, DMPA content and hard segment content on the stability of the wet JPU dispersions, as well as the physical, mechanical and thermal properties of the dry JPU films were investigated. The results reveal that with increasing OH number, the DMPA content and hard segment content significantly decrease the particle size from 1.1 μm to 53 nm, indicating increasing stability of the dispersions. JPU films exhibit the stress–strain behavior of an elastomeric polymer with a Young's modulus ranging from 1 to 28 MPa, a tensile strength of 1.8 to 4.0 MPa and elongation at break ranging from 85 to 325%. The polyurethane dispersions synthesized in this work possess good pendulum hardness, water repellence and thermal stability with promising application as a binder for wood and decorative coatings. Elsevier 2015-02 Article PeerReviewed Saalah, Sariah and Abdullah, Luqman Chuah and Aung, Min Min and Salleh, Mek Zah and Awang Biak, Dayang Radiah and Basri, Mahiran and Jusoh, Emiliana Rose (2015) Waterborne polyurethane dispersions synthesized from jatropha oil. Industrial Crops and Products, 64. pp. 194-200. ISSN 0926-6690; ESSN: 1872-633X http://www.sciencedirect.com/science/article/pii/S0926669014006645 10.1016/j.indcrop.2014.10.046 |
| spellingShingle | Saalah, Sariah Abdullah, Luqman Chuah Aung, Min Min Salleh, Mek Zah Awang Biak, Dayang Radiah Basri, Mahiran Jusoh, Emiliana Rose Waterborne polyurethane dispersions synthesized from jatropha oil |
| title | Waterborne polyurethane dispersions synthesized from jatropha oil |
| title_full | Waterborne polyurethane dispersions synthesized from jatropha oil |
| title_fullStr | Waterborne polyurethane dispersions synthesized from jatropha oil |
| title_full_unstemmed | Waterborne polyurethane dispersions synthesized from jatropha oil |
| title_short | Waterborne polyurethane dispersions synthesized from jatropha oil |
| title_sort | waterborne polyurethane dispersions synthesized from jatropha oil |
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