杉木液化液交联苯酚-甲醛合成新型木材胶黏剂

doi:10.11707/j.1001-7488.20140121

Abstract

Abstract: A novel composite adhesive was synthesized in our experiment, which revealed the new zero-waste and zero-pollution adhesive synthetic by blending of alkaline Chinese fir (Cunninghamia lanceolata) liquid with a small amount of phenol-formaldehyde. The synthetic Chinese fir-based adhesive showed better physical properties of low free phenol as well as free formaldehyde content compared with control PF resin. Plywood of three layers bonded with the synthesized adhesives was made to determine bond strength and formaldehyde emission. The Chinese fir-based adhesive has been proved to reduce the formaldehyde emission significantly without decreasing the bond strength at all. The FT-IR analysis confirmed the polymer chemistry structure has been built by the Chinese fir liquid reacting with formaldehyde and phenol. The DSC results indicated that although the Chinese fir-based adhesive's curing need higher temperature than the PF resin, the higher curing temperature hardly cripple the availability of Chinese fir-based adhesive.

Key words: modification of phenol-formaldehyde resin, liquefaction, bonding properties, structural analysis, curing

CLC Number:

TQ437

Sun Jin, Lin Ruihang, Li Xiaozeng, Wang Xiaobo, Zhu Xiaofeng, Xu Enguang. A Novel Plywood Adhesive Synthesized by Phenol-Formaldehyde Crosslinking Alkaline Chinese Fir Liquid[J]. Scientia Silvae Sinicae, 2014, 50(1): 140-148.

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A Novel Plywood Adhesive Synthesized by Phenol-Formaldehyde Crosslinking Alkaline Chinese Fir Liquid

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