International Conference on Advanced Manufacturing and Industry Applications | |
Thermal Curing of Benzoxazine Blends from Cardanol- Furfurylamine and Diphenolic Acid-Aniline | |
机械制造;工业技术 | |
Viet, C.X.^1 ; Lan, D.N.U.^2 ; Hung, T.K.^1 | |
Department of Polymer Materials, Ho Chi Minh University of Technology, Viet Nam^1 | |
School of Materials Engineering, University Malaysia Perlis, Malaysia^2 | |
关键词: Carboxyl groups; Cashew nut shell liquid; Curing temperature; Fourier transform infrared; Furfuryl amines; High thermal stability; Lower temperatures; Polybenzoxazine; | |
Others : https://iopscience.iop.org/article/10.1088/1757-899X/429/1/012068/pdf DOI : 10.1088/1757-899X/429/1/012068 |
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学科分类:工业工程学 | |
来源: IOP | |
【 摘 要 】
Cardanol-furfurylamine benzoxazine (CFB) is a bio-based resin thanks to cardanol as a by-product of cashew nut shell liquid. Polybenzoxanize obtained from CFB exhibited high thermal stability, however, it requires a high thermal curing temperature. This research was aimed to reduce the curing temperature of CFB by blending it and diphenolic acid-aniline benzoxazine (DAB). The blend molar ratio of CFB:DAB was 4:1. Under thermal curing, carboxyl group in DAB was degraded and accelerated ring-opening polymerization of CFB/DAB blend so that no catalyst was used. Different curing temperatures of CFB/DAB blend was investigated. Results from fourier transform infrared (FTIR) and differential scanning calorimetry (DSC) proved that the ring-opening initiated at 115.2 °C for DAB, 141.6 °C for blend and 206.2 °C for CFB. It proved that CfB/DAB blend could start thermal curing at an obvious lower temperature. Moreover, polybenzoxazine synthesized from CFB/DAB blend exhibited good thermal stability compared to DAB-polybenzoxazine and obtained higher char yields compared to CFB-polybenzoxazine.
【 预 览 】
Files | Size | Format | View |
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Thermal Curing of Benzoxazine Blends from Cardanol- Furfurylamine and Diphenolic Acid-Aniline | 759KB | download |