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石墨烯纳米片/环氧树脂纳米复合胶粘剂的吸湿行为及粘附性能

Moisture Absorption Behavior and Adhesion Properties of GNP/Epoxy Nanocomposite Adhesives.

作者信息

Kong Nurziana, Khalil Nur Zalikha, Fricke Holger

机构信息

Department of Mechanical Engineering, College of Engineering, Universiti Malaysia Pahang, Lebuhraya Tun Razak, Kuantan 26300, Pahang, Malaysia.

Fraunhofer Institute for Manufacturing and Advanced Materials (IFAM), Adhesive Bonding Technology and Surfaces, Wiener Strasse 12, 28359 Bremen, Germany.

出版信息

Polymers (Basel). 2021 Jun 2;13(11):1850. doi: 10.3390/polym13111850.

DOI:10.3390/polym13111850
PMID:34199568
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8199702/
Abstract

In the current work, an attempt has been made to investigate the effect of Graphene Nanoplatelets (GNP) reinforcement to water absorption behavior and mechanical properties of adhesive bonding with epoxy. Epoxy adhesive with various GNP content (i.e., 0.02.0 wt%) was utilized to joint aluminum adherend subjected to various immersion periods (i.e., 060 days). Subsequently, the effect of GNP reinforcement on water uptake, water absorption rate and tensile shear strength was investigated. Depending on GNP content, two distinct behaviors in water uptake and moisture absorption rate have been observed; specimens with lower GNP content (0.51.0 wt%) have demonstrated increased/retention of water uptake and water absorption rate regardless of immersion period. Meanwhile, at higher GNP content (1.52.0 wt%), decreased water uptake and water absorption rate are generally observed. At similar GNP content, regardless of immersion periods, water immersed specimens generally demonstrate higher or retention of shear strength when compared to specimens at 0-day immersion period. These observations suggest that the relation between moisture absorption behavior and mechanical properties of GNP-reinforced adhesive with GNP content are rather complex which might be attributed to the interplay of several possible mechanisms.

摘要

在当前工作中，已尝试研究石墨烯纳米片（GNP）增强对环氧胶粘剂吸水行为和力学性能的影响。使用具有不同GNP含量（即0.02.0 wt%）的环氧胶粘剂来连接铝被粘物，并使其经历不同的浸泡时间（即060天）。随后，研究了GNP增强对吸水率、吸水速率和拉伸剪切强度的影响。根据GNP含量，在吸水率和吸湿率方面观察到两种不同的行为；GNP含量较低（0.51.0 wt%）的试样，无论浸泡时间如何，其吸水率和吸水速率均有所增加/保持。同时，在GNP含量较高（1.52.0 wt%）时，通常观察到吸水率和吸水速率降低。在相似的GNP含量下，无论浸泡时间如何，与浸泡0天的试样相比，浸水试样的剪切强度通常更高或保持不变。这些观察结果表明，GNP增强胶粘剂的吸湿行为与力学性能之间的关系以及GNP含量相当复杂，这可能归因于几种可能机制的相互作用。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ef93/8199702/3448f339fd22/polymers-13-01850-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ef93/8199702/9c008c0f02cd/polymers-13-01850-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ef93/8199702/265a91b761f5/polymers-13-01850-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ef93/8199702/644b0c876f45/polymers-13-01850-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ef93/8199702/444a9b7eecfd/polymers-13-01850-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ef93/8199702/211d6c51843d/polymers-13-01850-g005a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ef93/8199702/cd5cea86f905/polymers-13-01850-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ef93/8199702/36527ab0f700/polymers-13-01850-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ef93/8199702/c32caede991a/polymers-13-01850-g008a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ef93/8199702/3448f339fd22/polymers-13-01850-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ef93/8199702/9c008c0f02cd/polymers-13-01850-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ef93/8199702/265a91b761f5/polymers-13-01850-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ef93/8199702/644b0c876f45/polymers-13-01850-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ef93/8199702/444a9b7eecfd/polymers-13-01850-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ef93/8199702/211d6c51843d/polymers-13-01850-g005a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ef93/8199702/cd5cea86f905/polymers-13-01850-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ef93/8199702/36527ab0f700/polymers-13-01850-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ef93/8199702/c32caede991a/polymers-13-01850-g008a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ef93/8199702/3448f339fd22/polymers-13-01850-g009.jpg

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