International Journal of Adhesion and Adhesives最新文献

{"title":"In-situ double polymerization to build IPN structural melamine resin coating with excellent structural toughness and intrinsic hydrophobicity","authors":"Lijiu Cao ,&nbsp;Yunpeng Gong ,&nbsp;Xu Ma ,&nbsp;Yue Hu ,&nbsp;Jian Huang ,&nbsp;Yufang Chen ,&nbsp;Tao Jin","doi":"10.1016/j.ijadhadh.2024.103925","DOIUrl":"10.1016/j.ijadhadh.2024.103925","url":null,"abstract":"<div><div>Melamine-formaldehyde resin (MF) is a typical thermosetting amino resin. The cured MF film usually shows some defects such as autogenous-shrinkage, easy brittle fracture, and easy to swell and crack, so it is difficult to use MF as paint or coating directly. In this study, a novel melamine-formaldehyde resin oligomer (dMFO) which has two reactive groups (-CH₂OH and -CH=CH₂) was prepared by introducing hydroxypropyl acrylate (HPA) in the synthesis process of MF. The dMFO is then used as a coating resin and cured by thermal-assisted double polymerization (named as IDTC) to construct the dMFO coating with an in-situ interpenetrating polymer network (IPN). The result shows that the dMFO coating exhibits good structural toughness and intrinsic hydrophobicity just like an impact resistance of 110 mm, abrasion resistance of 1.4 mg/100R, and adhesion of 6.32 MPa. Furthermore, the cured dMFO coating showed an obvious intrinsic hydrophobicity, with a water contact angle of 92.3°and water resistance time of 8.5h. From the synthesis of dMFO, curing process and properties of the coating, it is shown that the reasonable IPN structure of dMFO coating is constructed by in-situ interpenetration of thermoplastic macromolecular segments in the thermosetting three-dimensional network structure. The developed dMFO coating technology is of great significance in promoting a practical application of MF in the field of coating and painting.</div></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"138 ","pages":"Article 103925"},"PeriodicalIF":3.2,"publicationDate":"2024-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143168973","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The properties of Cross Laminated Timber (CLT): A review","authors":"Y Alia Syahirah ,&nbsp;UMK Anwar ,&nbsp;Lee Sh ,&nbsp;CB Ong ,&nbsp;M Asniza ,&nbsp;MT Paridah","doi":"10.1016/j.ijadhadh.2024.103924","DOIUrl":"10.1016/j.ijadhadh.2024.103924","url":null,"abstract":"<div><div>Cross laminated timber (CLT) is a structurally efficient construction material that has gained widespread recognition for the possibility of quick assembly. This review paper enquires into the crucial factors that influencing the bonding and mechanical properties of CLT, with a focus on optimizing its performance. The bonding properties are examined, emphasizing the types of adhesives used, adhesive spread rate and clamping pressure during the manufacturing process. These factors significantly impact the integrity and durability of the CLT structure. The mechanical properties, another critical aspect of CLT, are explored in detail. The review explores the relationship of various factors such as wood density, anatomical properties, wettability and surface roughness, shedding light on their profound influence on the overall structural performance of CLT. The long-term performance of adhesive and durability of CLT are also discussed. Understanding and effectively managing these factors are imperative in ensuring the reliability and effectiveness of CLT as a construction material. By providing a comprehensive overview of the factors affecting CLT properties, this review aims to guide researchers, engineers, and industry professionals in optimizing the manufacturing processes and design considerations. Ultimately, a thorough understanding and management of these factors will contribute to the continued evolution of CLT as a sustainable and reliable solution for modern construction.</div></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"138 ","pages":"Article 103924"},"PeriodicalIF":3.2,"publicationDate":"2024-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143169155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High order analysis of debonding failure of orthodontic brackets","authors":"B. Azarov ,&nbsp;N. Malkiel ,&nbsp;O. Rabinovitch","doi":"10.1016/j.ijadhadh.2024.103896","DOIUrl":"10.1016/j.ijadhadh.2024.103896","url":null,"abstract":"<div><div>The paper investigates the initiation and evolution of debonding failure in orthodontic brackets. The latter forms a layered structure consisting of the tooth, an adhesive layer, the bracket, and the inter-laminar interface. The layered structure is prone to debonding, which critically impairs the therapeutic process. The purpose of this study is to develop a quantitative model to analyze the nonlinear and potentially unstable debonding failure in the layered structure. The model integrates the concepts of the high-order theory with nonlinear cohesive interfaces and rigid body displacement field of the bonded bracket. Numerical methods, based on a specially tailored finite element formulation and the arc-length continuation method, trace the full nonlinear response path and characterize its stability. The analysis is validated through comparison with experiments documented in the literature. The principal results quantify the unstable nature of debonding failure and identify factors influencing the instability. The analysis highlights the influence of the rich stress and displacement field in the adhesive layer on failure progression. This is achieved by exploring the coupled role of shear and tensile stresses in the bond layer and the coupling of slip and separation across the interfaces, which jointly form the shear-peel effect, even under globally tangential loading. The major conclusions designate the innovative modeling approach as a tool for the investigation of the interfacial failure mechanism and a steppingstone towards modeling additional features of the layered structure, including curved surfaces, the impact of the surface conditions, and the uncertainty associated with the bonding practice.</div></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"138 ","pages":"Article 103896"},"PeriodicalIF":3.2,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143168969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exploring the impact of graphene nanoplatelets on adhesive mechanical strength: A comprehensive investigation into single-lap joint elastoplastic behavior via cohesive zone method","authors":"Amer Murtada Amer Abdalla ,&nbsp;Yasser Hamed Elmoghazy ,&nbsp;Garshasp Keyvan Sarkon ,&nbsp;Aysegul Gazioglu ,&nbsp;Omar Khaled Sabry ,&nbsp;Abdulrahman Awad Sawelih ,&nbsp;Anas Al Sharif ,&nbsp;Hicham Wehbi ,&nbsp;Asem Yahya Ali Abd ,&nbsp;Saeid Sahmani ,&nbsp;Babak Safaei","doi":"10.1016/j.ijadhadh.2024.103908","DOIUrl":"10.1016/j.ijadhadh.2024.103908","url":null,"abstract":"<div><div>This research conducted a thorough examination on the effects of graphene nanoplatelets (GNPs) reinforcement on the mechanical strength of low-viscosity epoxy and elastic-plastic strength of single-lap joints (SLJs) by using finite element analysis (FEA) and experimental procedures. The reinforcing process of GNPs within low strength adhesive was accomplished by using controlled mixing techniques and the SLJ configuration samples were fabricated using AW 6063-T6 Aluminum adherends (that were mechanically and chemically treated). Tensile tests on bulk composite adhesive showed that the inclusion of GNPs significantly enhanced the mechanical properties of epoxy matrix. Maximum improvement of 775.46 % in ductility was noted with the addition of 0.1 % GNPs. Moreover, 51.43 % and 166 % improvements in elasticity and tensile strength were obtained by adding 1 % GNPs, respectively. Besides, 123.21 % maximum improvement in SLJ shear strength was obtained by adding 1 % GNPs. Thereafter, the experimental results were incorporated into the computational modeling workflow, where the trapezoidal cohesive law was employed based on cohesive zone modeling (CZM) scheme. Prediction accuracy of the numerical model was examined by comparing its results with experiment results and strong agreement was observed with relative error of 6 % in the case of 0.1 % wt. GNPs. At the same wt.%, the effects of geometric modifications on the joint performance were explored. A significant decrease in the concentration of stress at important joint locations was observed, indicating improved joint integrity and failure resistance. Peel stress was seen to rise with overlap duration, indicating that longer overlaps had higher peel stress.</div></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"138 ","pages":"Article 103908"},"PeriodicalIF":3.2,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143169428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modification and preparation of a bio-based Jatropha curcas L. wood adhesive with bonding strength and water-resistance by oxidation method","authors":"Yangyang Xiong ,&nbsp;Zhigang Wu ,&nbsp;Xuedong Xi ,&nbsp;Chunyin Li ,&nbsp;Hong Lei ,&nbsp;Zhangmin Chen ,&nbsp;Guanben Du","doi":"10.1016/j.ijadhadh.2024.103921","DOIUrl":"10.1016/j.ijadhadh.2024.103921","url":null,"abstract":"<div><div>To further improve the mechanical performances of <em>Jatropha curcas</em> L<em>.</em> protein adhesives, more glucose was added to <em>Jatropha curcas</em> L. flour to prepare <em>Jatropha curcas</em> L. protein adhesives (JPG-KMnO₄) by oxidation method. The study was conducted to examine the impact of glucose on the bonding strength of <em>Jatropha curcas</em> L. protein adhesive. Additionally, the procedure of preparing <em>Jatropha curcas</em> L. protein adhesive was explored. The performances of <em>Jatropha curcas</em> L. protein adhesives were also analyzed via differential scanning calorimetry (DSC), dynamic thermomechanical analysis (DMA), fourier transform-infrared spectrometry (FT-IR), X-ray photoelectron spectroscopy (XPS), and thermogravimetry (TG). The results showed the incorporation of glucose into <em>Jatropha curcas</em> L. flour form to more -CHO that reacted with -NH₂ on <em>Jatropha curcas</em> L. proteins by the Schiff base reaction. The JPG-KMnO₄ adhesive exhibits increases of 74 %, 27 %, and 11 % in dry shear strength, wet shear strength in cold water, and wet shear strength in hot water, respectively. The residual rate of the JPG-KMnO₄ adhesive exhibits increases of 4.2 % and 10.5 % in cold water and hot water, respectively.</div></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"138 ","pages":"Article 103921"},"PeriodicalIF":3.2,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143167999","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Silver core-shells particles as antibacterial filler for adhesive resins","authors":"Gabriela de Souza Balbinot,&nbsp;Vicente Castelo Branco Leitune,&nbsp;Sofia Dexheimer Montenegro,&nbsp;Fabricio Mezzomo Collares","doi":"10.1016/j.ijadhadh.2024.103916","DOIUrl":"10.1016/j.ijadhadh.2024.103916","url":null,"abstract":"<div><h3>Objectives</h3><div>To evaluate the addition of Ag@SiO₂ on the physicochemical and biological properties of an experimental adhesive resin.</div></div><div><h3>Materials and methods</h3><div>Ag@SiO₂ particles were synthesized using a modified Stöber sol-gel process and added to a resin adhesive containing Bis-GMA (66.6 wt%) and HEMA (33.3 wt%). The particles were incorporated into the adhesive resin at 1 wt% (G_1%), 2.5 wt% (G_2.5 %), and 5 wt% (G_5%) for the experimental groups. The unfilled adhesive base was used as a control (G_0%). The adhesives were characterized by the degree of conversion, softening in solvent, ultimate tensile strength, microtensile bond strength, cytotoxicity, and antibacterial activity.</div></div><div><h3>Results</h3><div>The degree of conversion decreased for the 5 wt% Ag@SiO₂ containing group when compared to the control (G_0%) and 1 wt% (G_1%) groups (p &lt; 0.05). A decrease in Knoop microhardness was observed for all groups after immersion in solvent (p &lt; 0.05). Ultimate tensile strength was not affected by particle addition (p &gt; 0.05). The addition of Ag@SiO₂ decreased bond strength (p &lt; 0,05). All groups achieved over 90 % cell viability for SRB assay. Antimicrobial effects against <em>S. mutans</em> bacteria were observed, both in planktonic and biofilm environments (p &lt; 0.05).</div></div><div><h3>Conclusion</h3><div>The adhesives added with 2.5 wt% Ag@SIO₂ presented an adequate polymeric structure even though bond strength was affected. The addition of Ag@SiO₂ in adhesives promoted antibacterial activity without cytotoxic side effects.</div></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"138 ","pages":"Article 103916"},"PeriodicalIF":3.2,"publicationDate":"2024-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143169427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"One-year evaluation of microtensile bond strength of universal adhesives in Self-etch or Etch and Rinse modes to dentin groups at different caries-affected degree","authors":"Nurgul Cetin Tuncer,&nbsp;Cagatay Barutcugil","doi":"10.1016/j.ijadhadh.2024.103919","DOIUrl":"10.1016/j.ijadhadh.2024.103919","url":null,"abstract":"<div><h3>Purpose</h3><div>The immediate and long-term microtensile bond strengths of two current universal adhesives used in self-etch (SE) or etch and rinse (ER) mode to caries-affected dentin compared to sound dentin were investigated.</div></div><div><h3>Material and methods</h3><div>Dentin groups were identified using the Vickers microhardness test: control group (SD), caries-affected hard dentin (D1) and caries-affected semi-hard dentin (D2). Dentin-adhesive interfaces were examined by electron microscopy (SEM). Statistical analyses were performed using two-way ANOVA, Scheffé and independent <em>t</em>-test (p &lt; 0.05).</div></div><div><h3>Results</h3><div>It was shown that the bond strength of all adhesive systems to D2 was significantly lower than to SD (p &lt; 0.05) and that D1 exhibited bond strength similar to SD, especially for adhesives applied in SE modes.</div></div><div><h3>Conclusions</h3><div>According to the results of the study, dentin hardness, adhesive type and the application mode have an effect on the long-term bond strength to dentin.</div></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"138 ","pages":"Article 103919"},"PeriodicalIF":3.2,"publicationDate":"2024-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143168980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An improved piecewise shear-lag model considering stiffness degradation for the fracture behavior of adhesively bonded tubular CFRP/steel joints","authors":"Zhiming Xue ,&nbsp;Zhiming Chen ,&nbsp;Zhenmeng Xia ,&nbsp;Zhidong Wen ,&nbsp;Leying Song","doi":"10.1016/j.ijadhadh.2024.103920","DOIUrl":"10.1016/j.ijadhadh.2024.103920","url":null,"abstract":"<div><div>This paper presents an improved piecewise shear-lag model that enhances the understanding of deformation and fracture behavior in adhesively bonded tubular CFRP/steel joints, incorporating adhesive stiffness degradation. The model employs a bilinear traction-separation law to accurately represent the non-linear load-displacement behavior of the adhesive layer. Experiments and simulations validate the analytical results, providing insights into the joint's fracture modes. Our findings highlight the crucial role of adhesive length in determining both initial pulling stiffness and peak pulling force. Specifically, the critical length <span><math><mrow><mi>π</mi><msub><mi>λ</mi><mn>2</mn></msub><mo>/</mo><mn>2</mn></mrow></math></span> serves as a key reference for structural design, as the load-bearing capacity remains stable with an increased adhesive layer length. Similarly, the characteristic length scale <span><math><mrow><msub><mi>λ</mi><mn>1</mn></msub></mrow></math></span> indicates that the initial pulling stiffness remains constant for adhesive layers longer than approximately 2.5 <span><math><mrow><msub><mi>λ</mi><mn>1</mn></msub></mrow></math></span>. For shorter adhesive layers, both load-bearing capacity and initial stiffness vary quasi-linearly with adhesive length. The maximum length of the damaged adhesive layer does not exceed the threshold <span><math><mrow><mi>π</mi><msub><mi>λ</mi><mn>2</mn></msub><mo>/</mo><mn>2</mn></mrow></math></span> due to the interplay between damaged and undamaged regions. Additionally, two straightforward formulas are proposed for determining key adhesive parameters (e.g., damage displacement, shear stiffness, fracture toughness) from measurable quantities in standard experiments.</div></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"138 ","pages":"Article 103920"},"PeriodicalIF":3.2,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143168978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High intensity focused ultrasound enhances bonding of universal adhesive to dentin in self-etch mode","authors":"Cheryl Fu ,&nbsp;Mohamed M. Awad ,&nbsp;Jackie Bridgwood ,&nbsp;Sarah Boon ,&nbsp;Masooma Hashimi ,&nbsp;Peta L. Clode ,&nbsp;Amr S. Fawzy","doi":"10.1016/j.ijadhadh.2024.103901","DOIUrl":"10.1016/j.ijadhadh.2024.103901","url":null,"abstract":"<div><h3>Objective</h3><div>To investigate the effect of high intensity focused ultrasound (HIFU) exposure on enhancing the bonding of universal adhesives, in self-etch mode, to dentin. To achieve this aim, the effects of HIFU exposure on dentin micro-topography, structure, and nanoscale mechanical and chemical properties were investigated. In addition, resin-dentin interfacial morphology and micro-tensile bond strength (μTBS) were evaluated.</div></div><div><h3>Methods</h3><div>The effect of HIFU exposure at 5, 15, or 30W at varying time intervals (30–120 s) on the dentin surface properties were characterised by scanning electron microscopy (SEM), atomic force microscopy (AFM), Raman spectroscopy, and nano-indentation testing. The interfacial junctions between Scotchbond universal adhesive, in self-etch mode, and HIFU-treated dentin were characterised using confocal laser scanning microscopy (CLSM) and transmission electron microscopy (TEM). Furthermore, μTBS tests were conducted before and after thermocycling.</div></div><div><h3>Results</h3><div>HIFU exposure at 30W for 120 s resulted in almost complete removal of the smear layer. HIFU treatment at 15W for 60 and 90 s, and at 30W for 60 s significantly increased dentin surface roughness. Raman analysis indicated progressive mineral removal at higher HIFU power levels. HIFU treatment at 5, 15, and 30W did not significantly affect dentin reduced elastic-modulus and nano-hardness. Following HIFU application at 30W for 120 s, CLSM examination indicated marked increase in adhesive penetration. HIFU exposure for 120 s at 30 W was effective in removing the overlying smear layer facilitating partial demineralisation of the underlying superficial dentin substrate. Whilst HIFU treatment did not improve the immediate μTBS of Scotchbond universal adhesive in self-etch mode, 120 s HIFU treatment at 30W significantly improved the aged μTBS values compared to the control.</div></div><div><h3>Significance</h3><div>HIFU treatment of dentin surface at 30W for 120 s enhanced the structural integrity of resin-dentin interfacial junctions and the μTBS, after thermocycling, of a mild universal adhesive applied in self-etch mode.</div></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"138 ","pages":"Article 103901"},"PeriodicalIF":3.2,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143169430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Adhesion properties of thiol-acrylate–epoxy polymer networks based on thiol–epoxy ‘click’ chemistry","authors":"Archana N.M.,&nbsp;Albin Davies,&nbsp;Youngson Choe","doi":"10.1016/j.ijadhadh.2024.103900","DOIUrl":"10.1016/j.ijadhadh.2024.103900","url":null,"abstract":"<div><div>This study examined the preparation of epoxy resins with enhanced mechanical strength, modified with thiol-acrylate segments integrated into the polymer network via a thiol–epoxy “click” reaction. Thiol-acrylate–epoxy polymers were synthesized using both single and dual curing processes. In the single curing process, a polythioether (thiol-acrylate) prepolymer was synthesized. The results showed that an epoxy formulation containing 30 wt% of this prepolymer achieved the highest lap shear strength, approximately 57% higher than that of neat epoxy. This improvement indicates strong interactions between the thiol-acrylate segments and the epoxy matrix due to the thiol–epoxy “click” reaction. Dual-cure systems exhibited slightly higher tensile strengths compared to single-cure systems, particularly as the thiol-acrylate segment content increased up to 20%, while also maintaining superior lap shear strengths. Incorporating thiol-acrylate segments raised the tensile strength to 34 MPa, about 25% higher than that of pure epoxy. Polymer networks containing 20–30 wt% of thiol-acrylate segments, in both single and dual-cure systems, demonstrated significant potential as effective adhesive systems. These findings contribute to the development of adhesives with enhanced tensile and lap shear strength, as well as the identification of suitable curing methods.</div></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"138 ","pages":"Article 103900"},"PeriodicalIF":3.2,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143168977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}