Cellulose nanocrystals‐organic montmorillonite nanohybrid material by electrostatic self‐assembly,Journal of Applied Polymer Science

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Cellulose nanocrystals‐organic montmorillonite nanohybrid material by electrostatic self‐assembly
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2020-03-23 , DOI: 10.1002/app.49263
Hao Liu ₁ , Hui He ₁ , Bai Huang ₁

Affiliation

The hybridization based on various nanoparticles is an emerging technological field, involving the synergistic hybrid assembly of nanoparticles. In order to broaden the application of existing nanomaterials such as cellulose nanocrystals (CNC) and montmorillonite (MMT), a novel CNC–organic MMT (OMMT) nanohybrid material was constructed by electrostatic self‐assembly. Morphology observations showed that one‐dimensional needle‐like CNC were adsorbed on the surface of two‐dimensional flake‐like OMMT, thereby forming a three‐dimensional nanohybrid. In the nanohybrid, CNC and OMMT still maintained their original chemical structures. Zeta potential results indicated that there was a strong electrostatic adsorption between CNC and OMMT. Based on this, the lamellar structure of OMMT can hide sulfate groups on the CNC surface and had a shielding effect on heat transfer, thereby evidently improving the thermal stability of the nanohybrid. The nanohybrid with unique nanostructure is expected to achieve synergistic effects in polymer nanocomposites, which may provide a promising strategy for the fabrication of high‐performance polymer nanocomposites.

中文翻译：

静电自组装纤维素纳米晶体-有机蒙脱土纳米杂化材料

基于各种纳米粒子的杂交是一个新兴的技术领域，涉及纳米粒子的协同杂化组装。为了拓宽纤维素纳米晶体（CNC）和蒙脱土（MMT）等现有纳米材料的应用，通过静电自组装构造了一种新型的CNC-有机MMT（OMMT）纳米杂化材料。形态学观察表明，一维针状CNC吸附在二维片状OMMT的表面上，从而形成了三维纳米杂化体。在纳米杂化物中，CNC和OMMT仍保持其原始化学结构。Zeta电位结果表明CNC和OMMT之间有很强的静电吸附。基于此，OMMT的层状结构可以在CNC表面上隐藏硫酸盐基团，并且对传热具有屏蔽作用，从而明显提高了纳米杂化物的热稳定性。具有独特纳米结构的纳米杂化物有望在聚合物纳米复合材料中实现协同效应，这可能为制造高性能聚合物纳米复合材料提供有希望的策略。

更新日期：2020-03-23

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