Liliya M. Amirova, Oskar L. Khamidullin, Gulnaz M. Madiyarova, Dinar A. Balkaev, Igor S. Antipin, Rustem R. Amirov
{"title":"Novel carbon-fiber powder benzoxazine-epoxy composites","authors":"Liliya M. Amirova, Oskar L. Khamidullin, Gulnaz M. Madiyarova, Dinar A. Balkaev, Igor S. Antipin, Rustem R. Amirov","doi":"10.1007/s10965-025-04370-8","DOIUrl":null,"url":null,"abstract":"<div><p>The composition of a new powder epoxy-benzoxazine polymer using epoxy resin DER671 and benzoxazine BA-a obtained from bisphenol A and aniline has been developed. Sheets of vacuum-bag-only (VBO) dry prepregs were obtained by applying a polymer powder in an electrostatic field to a carbon fiber and subsequent vitrification. The optimal composition of the epoxy-benzoxazine polymer (benzoxazine 50 mas%) and its curing mode (180° C—60 min, 220° C—60 min) were established by the methods of DSC, rheology and DMA. A high wettability of carbon fibers with a molten polymer was found, while voids between the yarns remain free. Consolidated plates obtained from VBO dry prepregs have low porosity and high volume fiber content (57.5 ± 1.3%). A test product in the geometry of a double dome, characterized by the absence of defects was obtained according to the selected modes by compression molding from a consolidated plate.</p><h3>Graphical Abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"32 4","pages":""},"PeriodicalIF":2.6000,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Polymer Research","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s10965-025-04370-8","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"POLYMER SCIENCE","Score":null,"Total":0}
引用次数: 0
Abstract
The composition of a new powder epoxy-benzoxazine polymer using epoxy resin DER671 and benzoxazine BA-a obtained from bisphenol A and aniline has been developed. Sheets of vacuum-bag-only (VBO) dry prepregs were obtained by applying a polymer powder in an electrostatic field to a carbon fiber and subsequent vitrification. The optimal composition of the epoxy-benzoxazine polymer (benzoxazine 50 mas%) and its curing mode (180° C—60 min, 220° C—60 min) were established by the methods of DSC, rheology and DMA. A high wettability of carbon fibers with a molten polymer was found, while voids between the yarns remain free. Consolidated plates obtained from VBO dry prepregs have low porosity and high volume fiber content (57.5 ± 1.3%). A test product in the geometry of a double dome, characterized by the absence of defects was obtained according to the selected modes by compression molding from a consolidated plate.
期刊介绍:
Journal of Polymer Research provides a forum for the prompt publication of articles concerning the fundamental and applied research of polymers. Its great feature lies in the diversity of content which it encompasses, drawing together results from all aspects of polymer science and technology.
As polymer research is rapidly growing around the globe, the aim of this journal is to establish itself as a significant information tool not only for the international polymer researchers in academia but also for those working in industry. The scope of the journal covers a wide range of the highly interdisciplinary field of polymer science and technology, including:
polymer synthesis;
polymer reactions;
polymerization kinetics;
polymer physics;
morphology;
structure-property relationships;
polymer analysis and characterization;
physical and mechanical properties;
electrical and optical properties;
polymer processing and rheology;
application of polymers;
supramolecular science of polymers;
polymer composites.