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One‐step treated wood by using natural source phytic acid and uracil for enhanced mechanical properties and flame retardancy
Author(s) -
Zhang Lichen,
Yi Deqi,
Hao Jianwei,
Gao Ming
Publication year - 2021
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.5165
Subject(s) - limiting oxygen index , fire retardant , materials science , flammability , uracil , composite material , flexural strength , compressive strength , environmentally friendly , pulp and paper industry , nuclear chemistry , combustion , organic chemistry , chemistry , char , dna , ecology , biochemistry , engineering , biology
Wood has always maintained an important position in construction engineering and decoration due to its unique excellent characteristics, but its flammability has limited various application. In this study, phytic acid (PA) derived from plant seeds and uracil (U) derived from ribonucleic acid (RNA) were prepared as water solution, and natural wood just through physical infiltration in the water solution to obtain wood/PA/uracil (flame retardant [FR] wood), which was environmentally friendly, high strength and fire‐resistant. The three‐point bending test performance was basically unchanged, compressive strength was increased by 15.3%. The peak heat release rate, total heat release, smoke production rate, and total smoke production of FR wood were reduced up to 41%, 30%, 61%, 56%, respectively, compared with the natural wood. Limiting oxygen index value of FR wood can reach 31.8%, and UL‐94 V‐0 rating can be reached. These results suggested that wood/PA/uracil could be promising green construction applications.