Nanocomposite based on erucic acid modified montmorillonite/sulfited rapeseed oil: Preparation and application in leather
Nanocomposite based on erucic acid modified montmorillonite/sulfited rapeseed oil: Preparation and application in leather
复制标题
芥酸改性蒙脱石/亚硫酸菜籽油纳米复合材料的制备及其在皮革中的应用
DOI：
10.1016/j.clay.2015.12.021
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发表时间：
2016-03-01
影响因子：
5.6
通讯作者：
Han, Xuewu
中科院分区：
文献类型：
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作者：
Lyu, Bin;Gao, Jianjing;Han, Xuewu
顺式-13-二十二碳烯酸（又名芥酸）通过插层反应对蒙脱土进行改性。以芥酸改性蒙脱土（EA-Mt）、菜籽油、乙二胺、丙烯酸、亚硫酸氢钠为原料，制备了芥酸改性蒙脱土/改性菜籽油（EA-Mt/MRO）纳米复合材料。X射线衍射（XRD）结果表明，芥酸成功地插层到蒙脱石层间，蒙脱石层间距从1.24 nm增加到1.48 nm。热重分析（TGA）结果表明，添加EA-Mt后，EA-Mt/MRO纳米复合材料的热稳定性得到有效提高。然后将EA-Mt/ MRO纳米复合材料作为加脂剂应用于山羊服装革的加脂工艺中。SEM和EDX分析表明，芥酸插层蒙脱土分散在皮革胶原纤维上。结果表明，经EA-Mt/MRO纳米复合材料处理后，皮革的阻燃性能得到了显著提高。与改性菜籽油（MRO）处理的皮革相比，EA-Mt/MRO处理的皮革的最高LOI值由8% EA-Mt处理的23.7%提高到27.9%。该革具有优良的上级柔软性和物理机械性能。(C)2015 Elsevier B. V.版权所有。
Montmorillonite was modified by cis-13-docosenoic acid also known as erucic acid via intercalation reaction. The as-prepared erucic acid modified montmorillonite (EA-Mt), rapeseed oil, ethylene diamine, acrylic, and sodium bisulfite were employed to prepare the EA-Mt/modified rapeseed oil (EA-Mt/MRO) nanocomposite. X-ray diffraction (XRD) indicated that erucic acid successfully intercalated into the interlayer space of montmorillonite (Mt) with the basal spacing of Mt increasing from 1.24 nm to 1.48 nm. The thermal stability of EA-Mt/MRO nano composite was effectively improved after adding the EA-Mt by thermogravimetric analysis (TGA). Then, EA-Mt/ MRO nanocomposite as fatliquoring agent was applied in the leather fatliquoring process of goatskin garment. Erucic acid intercalated Mt was dispersed on the collagen fibers of the leather as confirmed by SEM and EDX. The flame retardancy of the leather treated with EA-Mt/MRO nanocomposite was found to be improved in a significant way. Compared with that of leather treated with modified rapeseed oil (MRO), the highest LOI value of leather treated with EA-Mt/MRO reached 27.9% from 23.7% with 8% EA-Mt. The leather had superior softness, physical and mechanical properties. (C) 2015 Elsevier B.V. All rights reserved.