{"title":"电沉积al取代β-TCP涂层对CF/PEEK复合材料界面强化的研究","authors":"Yang Liu , Kaibao Wang , Huirong Le","doi":"10.1016/j.compstruct.2025.119024","DOIUrl":null,"url":null,"abstract":"<div><div>This article investigated the interfacial strengthening of carbon fiber reinforced PEEK (CF/PEEK) by modifying CF with Al-substituted β-TCP (Al-TCP). Short carbon fibers with Al-TCP coating (CF/Al-TCP) were prepared using the electrodeposition process, and CF/Al-TCP/PEEK composites with 20 wt% CF/Al-TCP were then obtained by the solution method and the compression molding. The analysis of XRD, FTIR, TG-DSC, and SEM with EDS of CF/Al-TCP powders confirmed the success of the coating and its composition consisting of <span><math><mrow><msub><mrow><mi>C</mi><mi>a</mi></mrow><mn>9</mn></msub><mi>A</mi><mi>l</mi><msub><mrow><mo>(</mo><mi>P</mi><msub><mi>O</mi><mn>4</mn></msub><mo>)</mo></mrow><mn>7</mn></msub></mrow></math></span>, β-TCP and <span><math><mrow><mi>A</mi><mi>l</mi><mi>P</mi><msub><mi>O</mi><mn>4</mn></msub></mrow></math></span>. Compared with bare CF (BCF), the contact angle with deionized water of CF/Al-TCP decreased by 14.2 %, and the surface energy of CF/Al-TCP increased by 16.2 %. Compared with BCF/PEEK, the flexural strength and flexural modulus of CF/Al-TCP/PEEK increased from 109 MPa and 5.129 GPa to 121.7 MPa and 5.182 GPa, respectively, with an increase of 11.6 % and 1.0 %. The predicted flexural modulus of CF/Al-TCP/PEEK composites using the finite element simulation method agreed well with the experimental results. The interfacial strengthening of CF/Al-TCP/PEEK can be explained by CF’s increased roughness (mechanical interlocking theory) and surface wettability (infiltration adsorption theory). These findings suggest that the CF/Al-TCP/PEEK composites can potentially be utilized for load-bearing orthopedic applications.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"359 ","pages":"Article 119024"},"PeriodicalIF":7.1000,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Interfacial strengthening of CF/PEEK composites by electrodeposition of Al-substituted β-TCP coating for load-bearing orthopedic implants\",\"authors\":\"Yang Liu , Kaibao Wang , Huirong Le\",\"doi\":\"10.1016/j.compstruct.2025.119024\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>This article investigated the interfacial strengthening of carbon fiber reinforced PEEK (CF/PEEK) by modifying CF with Al-substituted β-TCP (Al-TCP). Short carbon fibers with Al-TCP coating (CF/Al-TCP) were prepared using the electrodeposition process, and CF/Al-TCP/PEEK composites with 20 wt% CF/Al-TCP were then obtained by the solution method and the compression molding. The analysis of XRD, FTIR, TG-DSC, and SEM with EDS of CF/Al-TCP powders confirmed the success of the coating and its composition consisting of <span><math><mrow><msub><mrow><mi>C</mi><mi>a</mi></mrow><mn>9</mn></msub><mi>A</mi><mi>l</mi><msub><mrow><mo>(</mo><mi>P</mi><msub><mi>O</mi><mn>4</mn></msub><mo>)</mo></mrow><mn>7</mn></msub></mrow></math></span>, β-TCP and <span><math><mrow><mi>A</mi><mi>l</mi><mi>P</mi><msub><mi>O</mi><mn>4</mn></msub></mrow></math></span>. Compared with bare CF (BCF), the contact angle with deionized water of CF/Al-TCP decreased by 14.2 %, and the surface energy of CF/Al-TCP increased by 16.2 %. Compared with BCF/PEEK, the flexural strength and flexural modulus of CF/Al-TCP/PEEK increased from 109 MPa and 5.129 GPa to 121.7 MPa and 5.182 GPa, respectively, with an increase of 11.6 % and 1.0 %. The predicted flexural modulus of CF/Al-TCP/PEEK composites using the finite element simulation method agreed well with the experimental results. The interfacial strengthening of CF/Al-TCP/PEEK can be explained by CF’s increased roughness (mechanical interlocking theory) and surface wettability (infiltration adsorption theory). These findings suggest that the CF/Al-TCP/PEEK composites can potentially be utilized for load-bearing orthopedic applications.</div></div>\",\"PeriodicalId\":281,\"journal\":{\"name\":\"Composite Structures\",\"volume\":\"359 \",\"pages\":\"Article 119024\"},\"PeriodicalIF\":7.1000,\"publicationDate\":\"2025-04-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Composite Structures\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0263822325001898\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2025/2/28 0:00:00\",\"PubModel\":\"Epub\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, COMPOSITES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Composite Structures","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0263822325001898","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/2/28 0:00:00","PubModel":"Epub","JCR":"Q1","JCRName":"MATERIALS SCIENCE, COMPOSITES","Score":null,"Total":0}
Interfacial strengthening of CF/PEEK composites by electrodeposition of Al-substituted β-TCP coating for load-bearing orthopedic implants
This article investigated the interfacial strengthening of carbon fiber reinforced PEEK (CF/PEEK) by modifying CF with Al-substituted β-TCP (Al-TCP). Short carbon fibers with Al-TCP coating (CF/Al-TCP) were prepared using the electrodeposition process, and CF/Al-TCP/PEEK composites with 20 wt% CF/Al-TCP were then obtained by the solution method and the compression molding. The analysis of XRD, FTIR, TG-DSC, and SEM with EDS of CF/Al-TCP powders confirmed the success of the coating and its composition consisting of , β-TCP and . Compared with bare CF (BCF), the contact angle with deionized water of CF/Al-TCP decreased by 14.2 %, and the surface energy of CF/Al-TCP increased by 16.2 %. Compared with BCF/PEEK, the flexural strength and flexural modulus of CF/Al-TCP/PEEK increased from 109 MPa and 5.129 GPa to 121.7 MPa and 5.182 GPa, respectively, with an increase of 11.6 % and 1.0 %. The predicted flexural modulus of CF/Al-TCP/PEEK composites using the finite element simulation method agreed well with the experimental results. The interfacial strengthening of CF/Al-TCP/PEEK can be explained by CF’s increased roughness (mechanical interlocking theory) and surface wettability (infiltration adsorption theory). These findings suggest that the CF/Al-TCP/PEEK composites can potentially be utilized for load-bearing orthopedic applications.
期刊介绍：
The past few decades have seen outstanding advances in the use of composite materials in structural applications. There can be little doubt that, within engineering circles, composites have revolutionised traditional design concepts and made possible an unparalleled range of new and exciting possibilities as viable materials for construction. Composite Structures, an International Journal, disseminates knowledge between users, manufacturers, designers and researchers involved in structures or structural components manufactured using composite materials.
The journal publishes papers which contribute to knowledge in the use of composite materials in engineering structures. Papers deal with design, research and development studies, experimental investigations, theoretical analysis and fabrication techniques relevant to the application of composites in load-bearing components for assemblies, ranging from individual components such as plates and shells to complete composite structures.
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