High-biobased-content UV-curable oligomers derived from tung oil and citric acid: Microwave-assisted synthesis and properties
| dc.coverage | Asia | |
| dc.creator | Zhang, J., Shang, Q., Liu, C. | |
| dc.date | 2023-04-27T13:57:14Z | |
| dc.date | 2023-04-27T13:57:14Z | |
| dc.date | 2022 | |
| dc.date | 2023-02-24T17:40:22.0000000Z | |
| dc.date.accessioned | 2026-06-28T01:24:23Z | |
| dc.description | Ultraviolet (UV)-curing technique has been widely applied in modern industrial areas such as coatings, inks, and adhesives due to their “5E” advantages, i.e. efficient, energy saving, enabling, economical, and eco-friendly. However, due to the dramatic fluctuation of oil prices, greenhouse effect from CO2 emission, and serious environmental problems, much efforts have been devoted into the preparation of UV-curable materials from renewable resources such as carbohydrates, plant oils, and rosins.<br /> In this study, two novel UV-curable oligomers (TMCG1 and TMCG2) from tung oil and citric acid were synthesized via microwave technology and confirmed by FT-IR,1H NMR, and 13C NMR. The total reaction time was only 30 min, and the obtained oligomers showed high biobased contents (over 60%). Furthermore, a series of UV-curable coatings were constructed by copolymerizing the oligomers with a biobased reactive diluent (GA) from guaiacol. The resulting UV-cured materials achieved both high biobased content and high performance. For instance, the cured TMCG1 film with 10% of GA showed a biobased content of 72.4%, tensile strength of 16.6 MPa, glass transition temperature of 74.1 oC, maximum thermal degradation temperature of 437.2 oC, adhesion of 2 grade, pencil harness of 2H, and flexibility of 2 mm.<br /> In general, the biobased UV-curable coatings show great potential to be applied in the fields of coatings like wood coatings, and the combination of bioresources, microwave technology, and UV-curing technology indicated in this work could provide a “green + green + green” solution for the coating industry. Keywords: Agriculture, Economic Development, Education, Research, Innovation ID: 3483375 | |
| dc.format | 1p. | |
| dc.format | application/pdf | |
| dc.identifier | https://openknowledge.fao.org/handle/20.500.14283/cc4528en | |
| dc.identifier | http://www.fao.org/3/cc4528en/cc4528en.pdf | |
| dc.identifier.uri | http://hdl.handle.net/123456789/335611 | |
| dc.language | English | |
| dc.publisher | FAO ; | |
| dc.rights | Non-FAO | |
| dc.title | High-biobased-content UV-curable oligomers derived from tung oil and citric acid: Microwave-assisted synthesis and properties | |
| dc.title | XV World Forestry Congress, 2-6 May 2022 | |
| dc.type | Document |