Ferdosian Fatemeh, Pan Zihe, Gao Guchuhan, Zhao Boxin
Department of Chemical Engineering, University of Waterloo, Waterloo, ON N2L 3G1, Canada.
Polymers (Basel). 2017 Feb 17;9(2):70. doi: 10.3390/polym9020070.
There has been a rapid growth in research and innovation of bio-based adhesives in the engineered wood product industry. This article reviews the recent research published over the last few decades on the synthesis of bio-adhesives derived from such renewable resources as lignin, starch, and plant proteins. The chemical structure of these biopolymers is described and discussed to highlight the active functional groups that are used in the synthesis of bio-adhesives. The potentials and drawbacks of each biomass are then discussed in detail; some methods have been suggested to modify their chemical structures and to improve their properties including water resistance and bonding strength for their ultimate application as wood adhesives. Moreover, this article includes discussion of techniques commonly used for evaluating the petroleum-based wood adhesives in terms of mechanical properties and penetration behavior, which are expected to be more widely applied to bio-based wood adhesives to better evaluate their prospect for wood composites application.
在工程木制品行业，生物基胶粘剂的研究与创新发展迅速。本文综述了过去几十年发表的关于由木质素、淀粉和植物蛋白等可再生资源衍生的生物胶粘剂合成的最新研究。描述并讨论了这些生物聚合物的化学结构，以突出用于生物胶粘剂合成的活性官能团。然后详细讨论了每种生物质的潜力和缺点；提出了一些方法来改变它们的化学结构并改善其性能，包括作为木材胶粘剂最终应用所需的耐水性和粘结强度。此外，本文还讨论了常用于评估石油基木材胶粘剂机械性能和渗透行为的技术，预计这些技术将更广泛地应用于生物基木材胶粘剂，以更好地评估其在木材复合材料应用中的前景。
