通过硅烷偶联剂（KH570）提高淀粉基木材胶粘剂的性能。
Enhancing the performance of starch-based wood adhesive by silane coupling agent(KH570).
作者信息
Chen Lei, Wang Yajie, Fei Peng, Jin Wensi, Xiong Hanguo, Wang Zhenjiong
机构信息
College of Food Science and Technology, Huazhong Agriculture University, Wuhan 430070, PR China; Research Institute of comprehensive utilization of Biomaterials, Huazhong Agriculture University, Wuhan 430070, PR China.
School of Biological science and Biotechnology, Minnan Normal University, Zhangzhou,363000, PR China.
出版信息
Int J Biol Macromol. 2017 Nov;104(Pt A):137-144. doi: 10.1016/j.ijbiomac.2017.05.182. Epub 2017 Jun 1.
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.
为了研究硅烷偶联剂对淀粉基木材胶粘剂性能的改善，我们使用γ-甲基丙烯酰氧基丙基三甲氧基硅烷（KH570）作为交联剂制备了胶粘剂样品。结果发现，添加KH570可提高剪切强度和储存稳定性。由于共价键数量增加，KH570的添加还提高了热稳定性。此外，KH570增强了胶粘剂的剪切变稀特性并减弱了其假塑性行为。通过傅里叶变换红外光谱（FTIR）、X射线衍射分析（XRD）和热分析对共聚物进行了表征。通过X射线光电子能谱（XPS）和扫描电子显微镜（SEM）对胶粘剂的XPS分析和形态结构进行了评估。总之，6%的KH570（KH570:淀粉，重量比）可用于制备具有优异性能和稳定性的淀粉基木材胶粘剂。
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