Journal
JOURNAL OF APPLIED POLYMER SCIENCE
Volume 136, Issue 4, Pages -Publisher
WILEY
DOI: 10.1002/app.46995
Keywords
bio-based phenolic adhesive; bio-oil; furfural; highly substituted adhesive; phenolic resin
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Funding
- National Nature Science Foundation of China [51502108]
- Foundation of Jilin Provence Development and Reform Commission, China [2014N145]
- Development Project of Science and Technology of People's Government of Jilin Province [20150520016JH]
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Highly phenol substituted bio-oil-phenol-formaldehyde (BPF) adhesives were prepared via the phenolization-copolymerization method, in which furfural was used as a novel crosslinking agent to improve the bonding performance. The effects of bio-oil percentage, furfural content, curing temperature, and pressure on the performance of BPF adhesives have been studied in detail. A BPF adhesive with 75% bio-oil percentage and 15% furfural loading (named 75BPF_15) was synthesized, which was cured at 180 degrees C and 4 MPa. Compared to the conventional phenol-formaldehyde adhesive, the wet tensile strength of 75BPF_15 adhesive reached 2.84 MPa, which was significantly higher than the 1.54 MPa of PF. A possible mechanism of BPF adhesives crosslinked with furfural is proposed. (c) 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 46995.
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