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To investigate the improved performance of silane coupling agents on starch-based wood adhesive, we prepared adhesive samples using γ-Methacryloxypropyl trimethoxy silane(KH570) as a cross-linking agent.The results found that the addition of KH570 resulted in enhanced shear strength and storage stability. The addition of KH570 also promoted the thermal stability due to increase the number of covalent bonds.Furthermore, the KH570 enhanced the shear-thinning property and weakened the pseudoplastic behavior of the adhesive. The characterization of copolymers was carried out via Fourier transform infrared spectroscopy (FTIR), X-ray diffraction analysis (XRD) and thermal analysis. The performing XPS analysis and morphological structures of adhesive were evaluated by X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM). In conclusion, 6% KH570 (KH570:starch, w;w) could be used to prepare starch-based wood adhesives with superior performance and stability. [ABSTRACT FROM AUTHOR]

In this study, the effect of different durations of acid hydrolysis on the improvement of the properties of starch-based wood adhesive was investigated through a variety of determination methods The improved properties were analyzed using the pasting properties, viscosity, shear performance in dry and wet states, fourier infrared spectrometer, dynamic time sweep, and low filed nuclear magnetic resonance spectroscopy. Starch hydrolysis improved the viscosity stability, bonding performance, and water resistance of the starch-based wood adhesive. [ABSTRACT FROM AUTHOR]

A facile approach was developed to dramatically boost the performance of high amylose starch-based wood adhesive (HASWA) by addition of sucrose fatty acid esters (SEs). The results showed that the addition of 6% (w/w, dry starch basis) SEs significantly improved the bonding strength in both dry and wet states as well as the mobility and storage stability of the adhesive. The formation of amylose-SEs complexes were proved by blue value or differential scanning calorimetry (DSC) analysis. The results also indicated that the incorporation of SEs into the HASWA hindered the aggregation of latex particles and enhanced the thermal stability of starch molecules. Furthermore, SEs addition in the adhesive system resulted in the inhibition of starch retrogradation as observed by time sweep and pulsed nuclear magnetic resonance (PNMR) analysis. These findings provide important information to prepare bio-based high performance wood adhesive by adding SEs to replace the traditional petro-chemical based stocks adhesives. [ABSTRACT FROM AUTHOR]