The effect of rGO/SiO2 hybrid filler on Lap shear strength of Polyurethane adhesive having Poly (dimethyl siloxane) (PDMS)

IF 3.2 3区材料科学 Q2 ENGINEERING, CHEMICAL

International Journal of Adhesion and Adhesives Pub Date : 2025-01-04 DOI:10.1016/j.ijadhadh.2025.103942

Ganesh Yadav , Kavita Agarwal , Sunil Kumar Gupta

{"title":"The effect of rGO/SiO2 hybrid filler on Lap shear strength of Polyurethane adhesive having Poly (dimethyl siloxane) (PDMS)","authors":"Ganesh Yadav , Kavita Agarwal , Sunil Kumar Gupta","doi":"10.1016/j.ijadhadh.2025.103942","DOIUrl":null,"url":null,"abstract":"<div><div>The Polyurethane (PU) nanocomposite adhesive having Polydimethylsiloxane (PDMS) with 0.25 wt%, 0.50 wt%, and 1.0 wt% of reduced Graphene Oxide (rGO)/Silica (SiO<sub>2</sub>) as hybrid nanofillers was prepared using in situ polymerisation method. The morphology, phase separation, and thermal stability of the PU-PDMS nanocomposite adhesive with these fillers were analysed by FESEM (Field emission scanning electron microscopy), XRD (X-ray Diffractometer), and TGA (Thermogravimetric analysis), respectively. The functional group present in the PU-PDMS nanocomposite adhesive with rGO/SiO<sub>2</sub> hybrid nanofillers was determined by FTIR (Fourier transform infrared). The effect of the concentration of rGO/SiO<sub>2</sub> hybrid nanofillers in PU-PDMS neat adhesive on the shear strength of single lap aluminium adherends joints was examined. The thermal stability and lap shear strength were increased as the concentration of the rGO/SiO<sub>2</sub> hybrid nanofillers in the PU-PDMS adhesive increased up to 1.0 wt%. The ideal thickness of the adhesive layer for the neat PU-PDMS adhesive in lap shear joints was determined to be 0.5 mm. The shear strength of PU-PDMS nanocomposite adhesive with 1.0 wt% of rGO/SiO<sub>2</sub> hybrid filler was 249 % more than the neat PU-PDMS adhesives.</div></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"138 ","pages":"Article 103942"},"PeriodicalIF":3.2000,"publicationDate":"2025-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Adhesion and Adhesives","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0143749625000090","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}

引用次数: 0

Abstract

The Polyurethane (PU) nanocomposite adhesive having Polydimethylsiloxane (PDMS) with 0.25 wt%, 0.50 wt%, and 1.0 wt% of reduced Graphene Oxide (rGO)/Silica (SiO₂) as hybrid nanofillers was prepared using in situ polymerisation method. The morphology, phase separation, and thermal stability of the PU-PDMS nanocomposite adhesive with these fillers were analysed by FESEM (Field emission scanning electron microscopy), XRD (X-ray Diffractometer), and TGA (Thermogravimetric analysis), respectively. The functional group present in the PU-PDMS nanocomposite adhesive with rGO/SiO₂ hybrid nanofillers was determined by FTIR (Fourier transform infrared). The effect of the concentration of rGO/SiO₂ hybrid nanofillers in PU-PDMS neat adhesive on the shear strength of single lap aluminium adherends joints was examined. The thermal stability and lap shear strength were increased as the concentration of the rGO/SiO₂ hybrid nanofillers in the PU-PDMS adhesive increased up to 1.0 wt%. The ideal thickness of the adhesive layer for the neat PU-PDMS adhesive in lap shear joints was determined to be 0.5 mm. The shear strength of PU-PDMS nanocomposite adhesive with 1.0 wt% of rGO/SiO₂ hybrid filler was 249 % more than the neat PU-PDMS adhesives.

查看原文本刊更多论文

rGO/SiO2杂化填料对聚二甲基硅氧烷（PDMS）聚氨酯胶粘剂搭接抗剪强度的影响

采用原位聚合法制备了以还原氧化石墨烯(rGO)/二氧化硅（SiO2）为杂化纳米填料的聚二甲基硅氧烷（PDMS）和0.25 wt%、0.50 wt%和1.0 wt%的聚二甲基硅氧烷为杂化纳米填料的聚氨酯（PU）纳米复合胶粘剂。采用FESEM（场发射扫描电镜）、XRD （x射线衍射仪）和TGA（热重分析）分析了添加这些填料的PU-PDMS纳米复合胶粘剂的形貌、相分离和热稳定性。采用傅里叶变换红外光谱（FTIR）对含有氧化石墨烯/二氧化硅杂化纳米填料的PU-PDMS纳米复合胶粘剂中的官能团进行了表征。研究了PU-PDMS纯胶粘剂中rGO/SiO2杂化纳米填料浓度对单搭接铝粘接接头抗剪强度的影响。当氧化石墨烯/二氧化硅杂化纳米填料在PU-PDMS胶中的浓度增加到1.0 wt%时，热稳定性和搭接剪切强度均有所提高。确定了搭接剪切缝中纯PU-PDMS胶粘剂的理想粘接层厚度为0.5 mm。添加1.0 wt% rGO/SiO2杂化填料的PU-PDMS纳米复合胶粘剂的抗剪强度比纯PU-PDMS胶粘剂高249%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

International Journal of Adhesion and Adhesives 工程技术-材料科学：综合

CiteScore

6.90

自引率

8.80%

发文量

200

审稿时长

8.3 months

期刊介绍： The International Journal of Adhesion and Adhesives draws together the many aspects of the science and technology of adhesive materials, from fundamental research and development work to industrial applications. Subject areas covered include: interfacial interactions, surface chemistry, methods of testing, accumulation of test data on physical and mechanical properties, environmental effects, new adhesive materials, sealants, design of bonded joints, and manufacturing technology.