文獻(xiàn)名: The effect of acrylic latex-based polymer on cow blood adhesive resins for wood composites
作者: J Yan1, H L Lin1, G Z Feng1 and S Gunasekaran2
1 Chemistry & Chemical Engineering Department, Zhongkai University of Agriculture and Technology, Guangzhou 510225, P.R. China
2 Biological Systems Engineering Department, University of Wisconsin-Madison, WI, 53706, U.S.A
摘要:In this paper, alkali-modified cow blood adhesive (BA) and blood adhesive/acrylic latex-based adhesive (BA/ALB) were prepared. The physicochemical and adhesion properties of cow blood adhesive such as UV- visible spectra, particle size, viscosity were evaluated; share strength, water resistance were tested. UV- visible spectra indicates that the strong bonding strength of BA/ALB appeared after incorporating; the particle size of adhesive decreased with the increase of ALB concentration, by mixing ALB and BA, hydrophilic polymer tends locate or extand the protein chains and provide stability of the particles; viscosity decreased as shear rate increased in concordance with a pseudoplastic behavior; both at dry and soak conditions, BA and ALB/BA show significant difference changes when mass fraction of ALB in blend adhesive was over 30% (p < 0.05). ALB/ BA (ALB30%) is not significant different than that of phenol formaldehyde which was used as control. A combination of cow blood and acrylic latex-based adhesive significantly increased the strength and water resistance of the resulting wood.
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