{"title":"Conversion coatings for magnesium and steel alloys based on styrene-acrylic dispersion","authors":"Y.B. Makarychev, A.A. Chirkunov, O.Yu Grafov","doi":"10.1016/j.ijadhadh.2024.103761","DOIUrl":null,"url":null,"abstract":"<div><p>Physicochemical properties of polymerizable composite materials based on styrene-acrylic dispersion Lacroten 244 are considered. It is established that polymerizable gels at coaliscence on magnesium alloys form developed surface structures with good adhesion to metal and paints. The mechanism of formation of such structures and their adhesive properties were investigated by X-ray photoelectron spectroscopy and SEM analysis. It has been shown that the porous structures arise as a result of the chemical reaction of polycondensation between acrylic acid and surface magnesium hydroxides. On low-carbon steel, polymerization of the styrene-acrylic dispersion is accompanied by a strong interfacial interaction with subsequent increase in a uniform polymer coating. It is shown that styrene-acrylic dispersions can be used to obtain cost-effective conversion coatings on magnesium and steel alloys with high protective properties.</p></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"134 ","pages":"Article 103761"},"PeriodicalIF":3.2000,"publicationDate":"2024-07-17","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/S014374962400143X","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
Physicochemical properties of polymerizable composite materials based on styrene-acrylic dispersion Lacroten 244 are considered. It is established that polymerizable gels at coaliscence on magnesium alloys form developed surface structures with good adhesion to metal and paints. The mechanism of formation of such structures and their adhesive properties were investigated by X-ray photoelectron spectroscopy and SEM analysis. It has been shown that the porous structures arise as a result of the chemical reaction of polycondensation between acrylic acid and surface magnesium hydroxides. On low-carbon steel, polymerization of the styrene-acrylic dispersion is accompanied by a strong interfacial interaction with subsequent increase in a uniform polymer coating. It is shown that styrene-acrylic dispersions can be used to obtain cost-effective conversion coatings on magnesium and steel alloys with high protective properties.
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.