Oxygen plasma-treated enzymatic hydrolysis lignin as a natural binder for manufacturing biocomposites
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Xiaoyan Zhou
,
Lijuan Tang
Abstract
This paper describes the investigation of the oxygen plasma treatment of enzymatic hydrolysis lignin (EHL) that was obtained from the lignocellulosic ethanol production pro- cesses. The application of EHL as a natural binder for biocomposite product manufacturing was in focus. To understand the effects of oxygen plasma treatment, the chemical changes on the surface of EHL were evaluated by Fourier transform infrared (FTIR) spectroscopy, X-ray photo-electron spectroscopy (XPS), and electron spin resonance (ESR) spectroscopy. Adding EHL into the cotton-stalk fiberboards has a beneficial effect on physical and mechanical properties. Moreover, adding oxygen plasma-treated EHL produced a 69.2% increase of internal bond strength (IB), a 78.2% increase of modulus of rupture (MOR), and a 49.8% reduction of thickness swelling (TS). The bonding improvement was probably due to the generation of more oxygen-related functional groups and free radicals on the surface of EHL after the oxygen plasma treatment.
©2011 by Walter de Gruyter Berlin Boston
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- Meetings
- Meetings
Articles in the same Issue
- Original Papers
- Fundamental understanding of pulp property development under different thermomechanical pulp refining conditions as observed by a new Simons’ staining method and SEM observation of the ultrastructure of fibre surfaces
- Enhancing dewatering of thermo-mechanical pulp (TMP) based papermaking through enzymatic treatment
- Mechanisms of TMP peroxide bleaching using Mg-based alkalis
- Properties of wood chips for thermomechanical pulp (TMP) production as a function of spout angle
- Determination of local material properties of OSB sample by coupling advanced imaging techniques and morphology-based FEM simulation
- Combined bound water and water vapour diffusion of Norway spruce and European beech in and between the principal anatomical directions
- Oxygen plasma-treated enzymatic hydrolysis lignin as a natural binder for manufacturing biocomposites
- Influence of the adhesive formulation on the mechanical properties and bonding performance of polyurethane prepolymers
- Characterizing perpendicular-to-grain compression (C⊥) behavior in wood construction
- Predicting the strength of Populus spp. clones using artificial neural networks and ε-regression support vector machines (ε-rSVM)
- X-ray scattering and microtomography study on the structural changes of never-dried silver birch, European aspen and hybrid aspen during drying
- Equilibrium moisture content (EMC) in Norway spruce during the first and second desorptions
- Fungal degradation of bamboo samples
- qPCR as a tool to study basidiomycete colonization in wooden field stakes
- Meetings
- Meetings
