Sandwich-structured nano-adhesive based on the synergistic action of two nanoparticles (SiC and MWCNTs)

IF 2 3区材料科学 Q2 ENGINEERING, MECHANICAL

Surface Topography: Metrology and Properties Pub Date : 2024-04-12 DOI:10.1088/2051-672x/ad3a82

Umesh Marathe, Jayashree Bijwe

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Abstract

This study encompasses the development of sandwich-structured adhesive reporting the synergism in the functioning of two kinds of nanoparticles (NPs)-SiC (Silicon carbide) and MWCNTs (multiwalled carbon nanotubes). Two adhesives using MWCNTs and NPs of SiC in selected amounts were developed using Polyaryletherketone (PAEK) thermoplastic polymer as a base matrix. Fabricated joints using these adhesives were characterized for degglomeration and dispersion of NPs, lap shear strength (LSS), and failure modes. Based on the data on the LSS, the advantages and disadvantages of using individual NPs were analyzed, and the third adhesive was designed in a sandwich manner, where positive points of both the NPs were expected to work synergistically. The sandwich adhesive showed higher LSS than the individual ones, i.e., an 8.6% and 26% improvement to SiC-based and MWCNT-based adhesives, respectively. It was concluded that the strengthening mechanism of MWCNTs of bulk polymer in the central portion was beneficial. The two outer layers of SiC NPs in PAEK interacting with the two steel surfaces of coupons proved helpful in increasing friction and, hence, synergistically increasing the LSS of sandwich adhesive.

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基于两种纳米粒子（SiC 和 MWCNTs）协同作用的夹层结构纳米粘合剂

本研究包括夹层结构粘合剂的开发，报告了两种纳米粒子（NPs）--碳化硅（SiC）和多壁碳纳米管（MWCNTs）--的协同作用。使用聚芳醚酮（PAEK）热塑性聚合物作为基质，开发出了两种粘合剂，其中使用了选定量的 MWCNTs 和 NPs SiC。对使用这些粘合剂制造的接头进行了表征，包括 NPs 的聚结和分散、搭接剪切强度 (LSS) 和失效模式。根据 LSS 数据，分析了使用单个 NPs 的优缺点，并以三明治方式设计了第三种粘合剂，预计两种 NPs 的优点将协同发挥作用。三明治粘合剂的 LSS 值高于单个粘合剂，即比基于 SiC 和基于 MWCNT 的粘合剂分别提高了 8.6% 和 26%。由此得出的结论是，MWCNT 在中心部分对大块聚合物的强化机制是有益的。PAEK 中的两层外层 SiC NPs 与试样的两个钢表面相互作用，有助于增加摩擦力，从而协同提高夹层粘合剂的 LSS。

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来源期刊

Surface Topography: Metrology and Properties Materials Science-Materials Chemistry

CiteScore

4.10

自引率

22.20%

发文量

183

期刊介绍： An international forum for academics, industrialists and engineers to publish the latest research in surface topography measurement and characterisation, instrumentation development and the properties of surfaces.