Physical, mechanical properties, and structural characterization of konjac glucomannan-chitosan-polypeptide adhesive blends
作者： Jin Shang , Hongling Liu , Chusheng Qi , Xianqing Chen , Kangquan Guo
DOI: 10.1080/01694243.2015.1066237
关键词:
摘要: Polypeptide was used to improve the water resistance of konjac glucomannan (KGM)-chitosan-based wood adhesives. With identical solid content, tensile strength in wet state increased by addition polypeptide and a maximum 2.34 MPa reached. To examine physical chemical changes induced polypeptide, structure, viscoelasticity, morphology, miscibility adhesive blends were determined Fourier transform infrared spectroscopy, X-ray photoelectron rheometry, scanning electron microscopy. Results indicated improvements mechanical properties related formation intermolecular hydrogen bonds covalent between KGM, chitosan, which enhanced increasing concentration. Good existed chitosan as well good wettability veneer.
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