Journal of Adhesion最新文献_第6页

Effects of low temperatures and high strain rates on the tensile properties of polyurethane polymers for adhesives 低温和高应变速率对胶粘剂用聚氨酯聚合物拉伸性能的影响

IF 2.2 4区材料科学

Journal of Adhesion Pub Date : 2023-03-02 DOI: 10.1080/00218464.2023.2181699

Runa Okumura, K. Shimamoto, Y. Sekiguchi, Kazushi Kimura, Hirokazu Kageyama, Yutaro Yamamoto, Y. Matsuki, C. Sato

{"title":"Effects of low temperatures and high strain rates on the tensile properties of polyurethane polymers for adhesives","authors":"Runa Okumura, K. Shimamoto, Y. Sekiguchi, Kazushi Kimura, Hirokazu Kageyama, Yutaro Yamamoto, Y. Matsuki, C. Sato","doi":"10.1080/00218464.2023.2181699","DOIUrl":"https://doi.org/10.1080/00218464.2023.2181699","url":null,"abstract":"ABSTRACT The mechanical properties of polyurethane compounds were experimentally investigated by changing the composition of their components. Polyol components (polyoxypropylene glycol: PPG, polyoxytetramethylene glycol: PTMG, and polycarbonatediol: PCD) were mixed with monomeric methylene diphenyl diisocyanate to synthesize polyurethane pre-polymer, mixed with chain extenders (1,4’-butanediol: 1,4’-BD or dimethylthiotoluene diamine: DMTDA), and cured, to prepare four types of polyurethane resins. Tensile tests were conducted using a mechanical testing machine with a strain rate of approximately 0.3 s−1 and a hydraulic high-speed tensile testing machine with a strain rate of approximately 500 s−1. The temperature was controlled to be −40°C, −10°C, or 25°C. When PTMG was used as the polyol, the stress-strain relationship was less sensitive to temperatures and loading rates, and the material properties exhibited a relatively good balance between elongation and strength. Additionally, the use of 1,4’-BD as a chain extender resulted in higher elongation and lower strength than the use of DMTDA. Conversely, the stress-strain relationship was dramatically altered by the test conditions when PPG and PCD were used as the polyol and embrittlement under a combination of low temperature and high strain rate was confirmed. Furthermore, there were certain compositional combinations that exhibit necking at low temperatures.","PeriodicalId":14778,"journal":{"name":"Journal of Adhesion","volume":"99 1","pages":"2238 - 2259"},"PeriodicalIF":2.2,"publicationDate":"2023-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43612017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A novel cohesive zone modelling approach to represent mixed mode loading and bond line thickness effects 一种新的粘性区建模方法，用于表示混合模式载荷和粘结线厚度效应

IF 2.2 4区材料科学

Journal of Adhesion Pub Date : 2023-02-28 DOI: 10.1080/00218464.2023.2184688

B. Watson, M. Worswick, D. Cronin

{"title":"A novel cohesive zone modelling approach to represent mixed mode loading and bond line thickness effects","authors":"B. Watson, M. Worswick, D. Cronin","doi":"10.1080/00218464.2023.2184688","DOIUrl":"https://doi.org/10.1080/00218464.2023.2184688","url":null,"abstract":"ABSTRACT Accurate representation of the traction–separation response for mixed mode loading in a cohesive zone model (CZM) is critical to predicting the response of adhesive joints in a number of applications, including transportation and vehicle crashworthiness. Traditionally, the Mode I and Mode II responses are treated independently, with mixed mode response determined by relationships between the degree of mode mixity and separation, potentially leading to overprediction of the plateau traction and underprediction of the plateau length in mixed mode loading. This poor fit is due to the indirect relationship between mixity and traction and having minimal fitting options for separation-to-plateau and softening. To address this limitation, a mixed mode CZM approach is proposed, based on measured mixed-mode traction–separation results for a toughened epoxy adhesive. The effects of bond-line thickness were considered, to examine the ability of the proposed approach to include additional effects (beyond mode mixity) that are known to affect the traction–separation response. The CZM implementation was assessed using the original test data and was shown to capture the measured experimental traction–separation response across a range of mixed mode loading and bond line thickness more accurately compared to traditional CZM treatments.","PeriodicalId":14778,"journal":{"name":"Journal of Adhesion","volume":"99 1","pages":"2361 - 2380"},"PeriodicalIF":2.2,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49115943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Evolution of adhesion force behavior at the silica-HOPG interface from humidity-independent to humidity-dependent revealed on an AFM AFM揭示了二氧化硅- hopg界面黏附力行为从湿度无关到湿度依赖的演变

IF 2.2 4区材料科学

Journal of Adhesion Pub Date : 2023-02-28 DOI: 10.1080/00218464.2023.2185515

Tianmao Lai, Yuen-Shin Chen, Y. Zhang

{"title":"Evolution of adhesion force behavior at the silica-HOPG interface from humidity-independent to humidity-dependent revealed on an AFM","authors":"Tianmao Lai, Yuen-Shin Chen, Y. Zhang","doi":"10.1080/00218464.2023.2185515","DOIUrl":"https://doi.org/10.1080/00218464.2023.2185515","url":null,"abstract":"ABSTRACT The influence of relative humidity (RH) on adhesion force requires clarification. Adhesion forces between atomic force microscopy (AFM) silica cantilevers and highly oriented pyrolytic graphite (HOPG) were measured to study the influence. The force behavior can evolve from RH-independent to RH-dependent with repeated contacts. Initially, the force is relatively small and RH-independent without a large water bridge. However, it becomes RH-dependent after some time at a high RH and never changes again. The RH-dependent force generally exhibits a stable-increasing-stable behavior with RH due to thin-film flow. With a continually increasing-stable-decreasing RH, the RH-dependent force can usually keep pace with RH, indicating that the adsorption and desorption of water molecules are sensitive to RH. However, the force behavior can show a certain lag and advance (including a sudden change). The reasons were manifold: (1) the water bridge can suddenly form and disappear, (2) the equilibrium time for a film-vapor interface is long at high RHs, and (3) the Laplace pressure can change with a constant volume. The RH-dependent force usually keeps pace with a suddenly changed RH, indicating the fast growth process of a water bridge at a high desired RH. The results may enhance the understanding of adhesion mechanisms.","PeriodicalId":14778,"journal":{"name":"Journal of Adhesion","volume":"99 1","pages":"2402 - 2433"},"PeriodicalIF":2.2,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42145253","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

How to predict residual stresses of curing adhesives ab initio solely using extended rheometry 如何用扩展流变仪从一开始就预测固化胶粘剂的残余应力

IF 2.2 4区材料科学

Journal of Adhesion Pub Date : 2023-02-26 DOI: 10.1080/00218464.2023.2184264

J. Wirries, Till Vallée, Martin Rütters

{"title":"How to predict residual stresses of curing adhesives ab initio solely using extended rheometry","authors":"J. Wirries, Till Vallée, Martin Rütters","doi":"10.1080/00218464.2023.2184264","DOIUrl":"https://doi.org/10.1080/00218464.2023.2184264","url":null,"abstract":"ABSTRACT Prediction of residual stresses in adhesively bonded joints is a major topic among practitioners, as they significantly contribute to failure. The experimental determination of relevant material properties, like shrinkage, modulus development, and relaxation behavior, is considered highly complex. Viscoelastic and numerical models are often simplified to suit specific applications. However, most of them do not consider all relevant parameters or limited portions of the curing process. This publication addresses the lack of experimental methods to determine cure-dependent properties of reactive adhesives to use them as input for FE modelling to predict cure-induced stresses. The authors focus on extended rotational rheometry (ExRheo), to determine shrinkage, shear modulus, and relaxation in dependency of curing time for three adhesives. The relationship between change of viscoelastic properties, shrinkage, and curing degree is determined through DSC and kinetic modelling. The experimental results are modelled to be implemented in a numerical analysis in order to predict cure-induced stresses in constrained rheological experiment in ExRheo. Numerical results show very good agreement with the experiments, which validate the methodology. For the first time, shrinkage induced residual stresses are modelled ab initio over the curing process, without any assumptions, solely based upon direct experimental data using a single device.","PeriodicalId":14778,"journal":{"name":"Journal of Adhesion","volume":"99 1","pages":"2324 - 2360"},"PeriodicalIF":2.2,"publicationDate":"2023-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42673741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of epoxy functional silane on the crosslinking process of eucalyptus wood panels using formaldehyde-free acrylate adhesives 环氧功能性硅烷对无甲醛丙烯酸酯胶粘剂桉木板交联过程的影响

IF 2.2 4区材料科学

Journal of Adhesion Pub Date : 2023-02-26 DOI: 10.1080/00218464.2023.2183849

Eduardo Martins Gouveia Romão, Lara Robert Nahra, M. P. Oliveira, L. Guerrini

引用次数: 0

Machine learning approach for analysing and predicting the modulus response of the structural epoxy adhesive at elevated temperatures 用机器学习方法分析和预测结构环氧粘合剂在高温下的模量响应

IF 2.2 4区材料科学

Journal of Adhesion Pub Date : 2023-02-24 DOI: 10.1080/00218464.2023.2183851

Song Wang, Ziyang Xu, T. Stratford, Biao Li, Qingdian Zeng, Jun Su

{"title":"Machine learning approach for analysing and predicting the modulus response of the structural epoxy adhesive at elevated temperatures","authors":"Song Wang, Ziyang Xu, T. Stratford, Biao Li, Qingdian Zeng, Jun Su","doi":"10.1080/00218464.2023.2183851","DOIUrl":"https://doi.org/10.1080/00218464.2023.2183851","url":null,"abstract":"ABSTRACT For bonded Fibre Reinforced Polymer (FRP) strengthening systems in civil engineering projects, the adhesive joint performance is a key factor in the effectiveness of the strengthening; however, it is known that the material properties of structural epoxy adhesives change with temperature. This present paper examines the implied relationship between the curing regimes and the storage modulus response of the adhesive using a Machine Learning (ML) approach. A dataset containing 157 experimental data collected from the scientific papers and academic theses was used for training and testing an Artificial Neural Network (ANN) model. The sensitivity analysis reveals that the curing conditions have a significant effect on the glass transition temperatures (Tg ) of the adhesive, and consequently on the storage modulus response at elevated temperatures. Curing at an extremely high temperature for a long time does not, however, guarantee a better thermal performance. For the studied adhesive, curing in a warm (≥ 45°C) and dry (near 0 % RH) environment for 21 days is recommended for practical applications. A software with a Graphical User Interface (GUI) was established, which can predict the storage modulus response of the adhesive, plot the corresponding response curve, and estimate the optimum curing condition.","PeriodicalId":14778,"journal":{"name":"Journal of Adhesion","volume":"99 1","pages":"2280 - 2298"},"PeriodicalIF":2.2,"publicationDate":"2023-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45937847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental and numerical investigation of the damping properties of adhesively bonded tubular steel joints 粘接钢管节点阻尼性能的试验与数值研究

IF 2.2 4区材料科学

Journal of Adhesion Pub Date : 2023-02-24 DOI: 10.1080/00218464.2023.2178909

J. Damm, M. Albiez, T. Ummenhofer, Johannes Göddecke, G. Meschut, Fabian Kötz, A. Matzenmiller

引用次数: 4

Assessing the effect of a thickness gradient on the shear stress profile at the epoxy/silicone interface of thin coatings subjected to transverse shear loads with finite element analyses 用有限元分析评估厚度梯度对横向剪切载荷作用下薄涂层环氧树脂/硅树脂界面剪切应力分布的影响

IF 2.2 4区材料科学

Journal of Adhesion Pub Date : 2023-02-22 DOI: 10.1080/00218464.2023.2181697

Melissa M. Gibbons, Stephen Mcneela, J. Kohl

{"title":"Assessing the effect of a thickness gradient on the shear stress profile at the epoxy/silicone interface of thin coatings subjected to transverse shear loads with finite element analyses","authors":"Melissa M. Gibbons, Stephen Mcneela, J. Kohl","doi":"10.1080/00218464.2023.2181697","DOIUrl":"https://doi.org/10.1080/00218464.2023.2181697","url":null,"abstract":"ABSTRACT Low surface energy materials are used as foul-release coatings (FRCs) to reduce the forces required to remove biofouling. Previous experiments observed the release behavior of epoxy studs (pseudobarnacles) from silicone coatings with a thickness gradient. The studs were loaded transversely in thick-to-thin and thin-to-thick directions, and the final decohesion always proceeded from the thin to the thick side of the coating. However, trends in the critical transverse forces required for removal were not apparent. In this study, finite element models (FEMs) were created to determine the peak shear stress at the interface of an epoxy stud bonded to a silicone coating with a thickness gradient in response to a transverse load. The effects of the average coating thickness, the thickness gradient of the coating, and the transverse loading direction were determined. At a given average coating thickness, increasing the thickness gradient produced higher peak shear stresses at the interface, which would reduce the critical force required to remove the epoxy stud (i.e., would improve the performance of the FRC). The influence of the increased thickness gradient waned as the average coating thickness increased. Therefore, moderately thin coatings with large thickness gradients would be optimal for FRC performance under transverse loading.","PeriodicalId":14778,"journal":{"name":"Journal of Adhesion","volume":"99 1","pages":"2222 - 2237"},"PeriodicalIF":2.2,"publicationDate":"2023-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42262803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analytical prediction of stress and strain in adhesive tube-to-tube joints under thermal expansion/contraction 热膨胀/收缩条件下粘接管-管接头应力和应变的分析预测

IF 2.2 4区材料科学

Journal of Adhesion Pub Date : 2023-02-16 DOI: 10.1080/00218464.2023.2178307

Haotian Liu, J. Weibel, E. Groll

{"title":"Analytical prediction of stress and strain in adhesive tube-to-tube joints under thermal expansion/contraction","authors":"Haotian Liu, J. Weibel, E. Groll","doi":"10.1080/00218464.2023.2178307","DOIUrl":"https://doi.org/10.1080/00218464.2023.2178307","url":null,"abstract":"ABSTRACT Adhesive joints are widely applied and studied for various industrial applications. The interest in adhesive joints has expanded to include heating, ventilation, air conditioning, and refrigeration (HVAC&R) systems having a significant number of joints employed for manufacturing. This study investigates an analytical modeling approach for predicting joint stress and strain distribution under static loading with thermal strain. A review of modeling techniques identified the need to develop a joint analytical model under loading conditions representative of HVAC&R applications. The details of the model, governing equations, assumptions, boundary conditions, and solution techniques are first reported. The model is validated via comparison to existing results before performing parametric studies to provide insights on the influences of thermal expansion and inner tube pressure on possible failure. It is found that the joint overlap length plays an important role in stress distribution, while the adhesive thickness has less impact. Overall, the results indicate that static loading failure is not likely a concern for joints in HVAC&R systems, but the thermal strain and stress induced by temperature fluctuations must be carefully considered. This modeling effort establishes a framework that can be used to generate criteria and instructions on designing adhesive joints across different HVAC&R","PeriodicalId":14778,"journal":{"name":"Journal of Adhesion","volume":"99 1","pages":"2167 - 2190"},"PeriodicalIF":2.2,"publicationDate":"2023-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43468013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A review on recent trends in bio-based pressure sensitive adhesives 生物基压敏胶粘剂的研究进展

IF 2.2 4区材料科学

Journal of Adhesion Pub Date : 2023-02-09 DOI: 10.1080/00218464.2023.2176761

S. Pradeep, B. Kandasubramanian, S. Sidharth

引用次数: 7