Development of a New Synthetic Process of Wood Adhesives through Oxidation of Lignocellulosics with Microbes

用荧光素材料添加木质粘合剂，可以研究使用隔离的荧光素、蒸汽膨胀的木浮（SE）或蒸汽膨胀的木浮（BMSE）添加木质粘合剂作为添加剂，并作为苯甲醛树脂、尿素甲醛树脂或热塑性聚合物（用于木材/塑料复合物）作为基粘合剂。他是一个辅助性的练习者，作为一个额外的练习。特别是，苯酚/甲醛树脂的影响是显而易见的，它是从物理学的角度分析出来的，而不是化学的起源。当SE被添加到木质/塑料复合物中时，也取得了良好的结果，增加了用于正式dehyde的芳香反应位点，并在lignin中发现了苯基甲基醚粘合剂的过渡金属催化氧化化，我们基金了一个成功的催化清除CHI D23 Y D2-O粘合剂，带有在Mild条件下的分子氧化物。然后，它可能被替换为CHI D23-D2-生物氧化的O债券中的O债券。在这一背景下，我们考察了SE的生物氧化化与几种木材-干燥真菌，以及产品的性能作为一种附加的苯类粘合剂配方。结果是，如何，令人失望; BSE添加的公式的表现与良好，或更糟，SE添加的公式的性能。生物氧化物是在预孵化阶段通过添加剂（s）进行的进一步检验的。Then， the results using MnSOイイD24イエD2 as the inducer were encouraging。SEs处理了多种真菌，如COV、PHC和TYP，例如，显示出优异的性能作为对苯树脂的附加作用。

Wood adhesives added with lignocellulosic materials were investigated using isolated lignin, steam-exploded wood flours (SE), or steam-exploded wood flours modified with microbes (BMSE) as the additives, and phenol-formaldehyde resin, urea-formaldehyde resin, or thermoplastic polymers (for wood/plastic composites) as the base adhesives. SE was superior to lignin as an additive throughout the experiments. Especially, the effect was remarkable for phenol/formaldehyde resin, which was analyzed to come from a physical, rather than a chemical origin. Good results were also obtained when SE was added to wood/plastic composites.To increase the aromatic reaction sites for formaldehyde, the transition-metal catalyzed oxidative demethylation of phenyl methyl ether bond in lignin was attempted, and we fund a successful catalytic cleavage of CHィイD23ィエD2-O bond with molecular oxygen under mild conditions. Then, it may be possible to replace CHィイD23ィエD2-O bonds in lignin into HO bonds by biological oxidation. In this context, we examined the biological oxidation of SE with several wood-decay fungi and the performance of products as the additive of phenolic adhesive formulations. The results were, however, disappointing ; the performance of BMSE-added formulations were as good as, or rather poorer than, the SE-added formulations. The biological oxidation was further examined by the addition of inducer(s) in the preincubation stage. Then, the results using MnSOィイD24ィエD2 as the inducer were encouraging. SEs treated with several fungi, such as COV, PHC, and TYP, for example, showed excellent performance as the additive to phenolic resin.