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Development and Characterization of an Extractive-based Bio-Epoxy Resin from Beetle-Infested Lodgepole Pine (Pinus contorta var. latifolia) Bark
| Content Provider | Semantic Scholar |
|---|---|
| Author | Kuo, Pei-Yu |
| Copyright Year | 2016 |
| Abstract | This chapter outlines the synthesis and characterization of bio-based epoxy resins derived from bark extractives. The resins were prepared at various temperatures and catalyst amounts to determine an optimal for the yield and epoxy equivalent weight value. FTIR and NMR techniques were used to characterize the chemical structures of E-epoxy monomers. Measurement results indicated a successful epoxidation of bark extractives after reaction with epichlorohydrin. GPC results revealed that the molecular weights and polydispersities of Eepoxy monomers were lower than those of lignin epoxy (L-epoxy) monomers. The curing kinetic parameters calculated with the Kissinger method and the Model-Free method showed that E-epoxy had a lower curing activation energy value than petroleum-based epoxy (Pepoxy). Compared to P-epoxy, E-epoxy/P-epoxy blending system displayed comparable tensile strength and thermal stability. Research outcome demonstrated promises of using bark extractives to synthesize epoxy resins replacing toxic BPA. ___________________________________________________________________________ A version of this chapter was published in Green Chemistry (2014) DOI: 10.1039/c4gc00459k |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://tspace.library.utoronto.ca/bitstream/1807/73040/1/Kuo_Pei-Yu_201606_PhD_thesis.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |