A strong and reversible adhesive fibrillar surface based on an advanced composite with high strength and strong adhesion

IF 4.5 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

International Journal of Smart and Nano Materials Pub Date : 2023-01-02 DOI:10.1080/19475411.2023.2168783

Jian Liu, Yin Yao, Shaohua Chen, Xiaohong Li, Zhijun Zhang

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引用次数: 2

Abstract

ABSTRACT A material-structure integrated design method is proposed in this paper, with which micropillar and microwedge arrayed surfaces are fabricated based on a novel nanoparticle-reinforced silicone rubber composite (NRSRC) with high mechanical strength and strong surface adhesion. It is found that the micropillar-arrayed surface and the microwedge-arrayed surface show a normal adhesive strength of 50.9 kPa and a shear adhesive strength of 137.3 kPa, respectively, which are much higher than those of previously reported adhesive surfaces made by pure soft polymers. Furthermore, the microwedge-arrayed surface shows not only strong and stable adhesion on rough and smooth substrates but also an obvious anisotropy in the adhesion property. The latter consequently leads to an easy control of the attachment/detachment switch, which is evidenced by a mechanical gripper with a microwedged surface. Therefore, firmly picking up and easily releasing a heavy glass plate can be realized. All these results demonstrate the apparent advantages of the present composite-based fibrillar surfaces in achieving reliable and reversible adhesion and should have promising applications for manufacturing advanced adhesive devices, such as mechanical fixtures, portable climbing equipment and space robots. Graphical Abstract

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一种基于高强度和强附着力的先进复合材料的强可逆粘接纤维表面

摘要本文提出了一种基于新型纳米颗粒增强硅橡胶复合材料（NRSRC）的材料-结构集成设计方法，该方法具有高机械强度和强表面粘附性。研究发现，微柱阵列表面和微楔阵列表面分别显示出50.9kPa的法向粘合强度和137.3kPa的剪切粘合强度，这远高于先前报道的由纯软聚合物制成的粘合表面。此外，微楔阵列表面不仅在粗糙光滑的基底上表现出强大而稳定的粘附力，而且在粘附性能上表现出明显的各向异性。后者因此导致了对附接/分离开关的简单控制，这通过具有微楔形表面的机械夹持器来证明。因此，可以实现牢固地拾取和容易地释放沉重的玻璃板。所有这些结果都证明了本发明的基于复合材料的原纤维表面在实现可靠和可逆粘合方面的明显优势，并且应该在制造先进的粘合装置（如机械夹具、便携式攀爬设备和太空机器人）方面具有很好的应用前景。图形摘要

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来源期刊

International Journal of Smart and Nano Materials MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

6.30

自引率

5.10%

发文量

审稿时长

11 weeks

期刊介绍： The central aim of International Journal of Smart and Nano Materials is to publish original results, critical reviews, technical discussion, and book reviews related to this compelling research field: smart and nano materials, and their applications. The papers published in this journal will provide cutting edge information and instructive research guidance, encouraging more scientists to make their contribution to this dynamic research field.