核桃壳胶粘剂化学背景的探讨

doi:10.11707/j.1001-7488.20050321

Abstract

Abstract:

The chemical background of the shell of Yangbi walnut ( Juglans sigillata ) shell for wood adhesive as a raw material was approached in this paper. Results from the chemistry analysis showed, the walnut shell was composed with 33.25% cellulose (by nitric acid), 26.72% pentosan, 60.94% lignin and 1.19% ashes. By means of spectrum analysis of ¹H-NMR, IR and UV, it was recognized that guai_and syrin_were the main chemical elements of walnut lignin, which belonged to GS lignin, was which G lignin is more than S one. Making use of the chemical properties of G lignin, the walnut shell lignin could be co polymerized with phenol and formaldehyde for wood adhesive whose bonding capability was similar with that of common phenol formaldehyde resin.

Key words: walnut shell, chemical composition, lignin, wood adhesive

Zhang Hongjian;Zhang Junhua;Qiu Rongqiang;Ling Min;Yin Xiuming. Approach of the Adhesion Chemical Background of Walnut Shell[J]. Scientia Silvae Sinicae, 2005, 41(3): 125-128.

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Approach of the Adhesion Chemical Background of Walnut Shell

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