Effects of Gelatinization Pretreatment on the Performance of Starch-Based Wood Adhesive

doi:10.3969/j.issn.1673-1689.2012.08.009

Home > Archive>Volume 31, Issue 8, 2012 >844-848. DOI:10.3969/j.issn.1673-1689.2012.08.009

Effects of Gelatinization Pretreatment on the Performance of Starch-Based Wood Adhesive
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                        10.3969/j.issn.1673-1689.2012.08.009
                    
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The gelatinization pretreatment of starch were used to improve the performance of of renewable starch-based wood adhesive in this study.Compared with starch-based wood adhesive without gelatinization pretreatment of starch,the bonding strength of starch-based wood adhesive with gelatinization pretreatment of starch increased by 20.9% and 45.8% in dry-state and wet-state,respectively.Result of freeze-thaw stability measurement indicated that the gelatinization pretreatment of starch could effectively improve the frost resistance of starch-based wood adhesive.The results of dynamic time sweep experiments and XRD analysis demonstrated that the gelatinization pretreatment of starch could weaken intermolecular hydrogen bonds of starch,and enhance the grafted reaction of starch and VAc monomer.The grafted parameters was also remarkably increased by the gelatinization pretreatment of starch,such as G increased by 43.5% and GE increased by 38.8%.Therefore,the gelatinization pretreatment of starch enhanced structural stability and bonding capacity of renewable starch-based wood adhesive.

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WANG Zhen-jiong, ZHANG Ya-yuan, LIU Wen-jing, GU Zheng-biao, CHENG Li, LI Zhao-feng. Effects of Gelatinization Pretreatment on the Performance of Starch-Based Wood Adhesive[J]. Journal of Food Science and Biotechnology,2012,31(8):844-848.

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Online: June 17,2014
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