Preliminary study on synthesis and adhesion properties of 
urea-glyoxal-polyvinyl alcohol resin

doi:10.3969/j.issn.1000-2006.2014.02.005

JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2014, Vol. 38 ›› Issue (02): 21-25.doi: 10.3969/j.issn.1000-2006.2014.02.005

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Preliminary study on synthesis and adhesion properties of urea-glyoxal-polyvinyl alcohol resin

HAN Shuguang,CUI Juqing, REN Le,ZHOU Xiaoyan

College of Wood Science and Technology, Nanjing Forestry University, Nanjing 210037, China

Online:2014-03-10 Published:2014-03-10

Abstract

Abstract: Using the alkali acid process, the polycondensation resin were synthesized using urea, glyoxal and polyvinyl alcohol as the raw material, and it was used for the preparation of plywood. Central composite experimental design using Design-Expert 8.0.6, was used to examine the effects of molar ratio, polyvinyl alcohol dosage(mass percentage), the addition reaction(OH^-)and polycondensation reaction(H⁺)of pH values on the resin synthesis and gluing properties. The results showed that the bonding strength of urea-glyoxal-polyvinyl alcohol resin could not reach the standard of Class II of plywood, but the formaldehyde emission of which could reach the level of E0 class.

CLC Number:

TQ433
S784

HAN Shuguang,CUI Juqing, REN Le,ZHOU Xiaoyan. Preliminary study on synthesis and adhesion properties of urea-glyoxal-polyvinyl alcohol resin[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2014, 38(02): 21-25.

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Preliminary study on synthesis and adhesion properties of urea-glyoxal-polyvinyl alcohol resin

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