Effect of surface modification of microcrystalline cellulose with ionic liquids on natural latex composites

微晶纤维素 复合材料 材料科学 纤维素 天然纤维 表面改性 离子液体 高分子科学 化学工程 复合数 化学 有机化学 催化作用 工程类
作者
Rui Wang,Yiwen Sun,Yanbing Hou,Yong Tian,Yandan Zhang,Fusheng Liu,Jingjie Han
出处
期刊:Journal of Applied Polymer Science [Wiley]
卷期号:141 (15)
标识
DOI:10.1002/app.55231
摘要

Abstract As an environmentally friendly biomacromolecular material, microcrystalline cellulose (MCC) enhances the performance of natural rubber latex (NRL) composites. However, MCC has strong polarity, which weakens the interfacial interaction between MCC and the non‐polar NRL matrix and reduces the reinforcing performance due to the many hydroxyl groups on its surface. In this paper, the ionic liquid (IL) modified MCC/IL material was prepared, and AIR‐FTIR, x‐ray diffraction, and XPS photoelectron spectroscopy were performed to detect it from the perspective of environmental protection. And natural latex/microcrystalline cellulose/ionic liquid (NRL/MCC/IL) composites with excellent properties were prepared by latex blending. The activation energy, vulcanization characteristics, basic mechanical properties, dynamic mechanical properties, and filler‐rubber interfacial interactions of NRL/MCC/IL composites were investigated. The results showed that the vulcanization rate constant of NRL/MCC/IL composites increase, the activation energy decreases and the mechanical properties were significantly improved. At the same time, the matrix interface interaction of composites was quantitatively calculated using Ayala parameters. The results showed that the interfacial interaction force of the composite was stronger after an appropriate amount of IL pretreatment. The whole process is not only conformed to the concept of green development, but also broadens the application of MCC in rubber materials.
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