The Structural Characterization of Larch Bark Bio-oil Phenolic Resin Adhesives

摘要

By some analytical methods like electron microscope, FUR, GC-MS, the structure of larch bark bio-oil phenolic resin adhesives has been studied and compared the result with that of common phenolic resin. The analysis from SEM and FTIR shows that common phenolic resin and bio-oil phenolic resin share the similarity of basic structure and components but also differ from each other in some areas mainly including that the cross-section of common phenolic resin owns a large amount of nanometer pinhole-like micropores, while the crosssection of bio-oil phenolic resin has a great deal of honeycomb-like and different size of suborbicular pore spaces. GC'-MS shows that the majority of biooil has inserted into the whole system of phenolic resin at the initial stage of adhesive resin's synthesis and the bio-oil component insert better into the whole resin system and meanwhile build firm connection.