Study on Mode II Interfacial Fracture Toughness and Self‐Healing Efficiency of Self‐Healing Carbon Fiber Reinforced Polymer/Polyvinyl Chloride Foam Composite Sandwich Structures
Source abstract
Abstract
Self‐healing adhesive films (SHAFs) by embedding microcapsules containing epoxy and microcapsules containing hardener within an adhesive matrix are developed in this study. These SHAFs are engineered into carbon fiber reinforced polymer (CFRP)‐to‐ polyvinyl chloride (PVC) foam interfaces in composite sandwich structures to enable simultaneous interfacial toughening and autonomous crack repair. The effect of microcapsule content on mode II interfacial fracture toughness and self‐healing efficiency is studied using end‐notched flexure tests. The results demonstrate that the SHAFs containing 18.75 wt% microcapsules lead to a remarkable 103.95% improvement in mode II interfacial fracture toughness compared to conventional CFRP/PVC composite sandwich structures without the SHAFs, while also achieving a healing efficiency of 69.95%. A comprehensive analysis of crack deflection, microcapsule rupture‐triggered healing agent release, and interfacial rebonding mechanisms demonstrates the synergistic toughening‐healing behavior. This work establishes a scalable strategy for engineering high‐performance self‐healing composite sandwiches with dual functionality.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Polymer composites and self-healing · Epoxy Resin Curing Processes · Flame retardant materials and properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Fashion and Textile Hong Kong Polytechnic University Hong Kong 999077 China
School of Aerospace Engineering and Applied Mechanics Tongji University Shanghai 200092 China
School of Materials Science and Engineering NingboTech University Ningbo Zhejiang 315100 China
Key Laboratory of AI‐aided Airworthiness of Civil Aircraft Structures Civil Aviation Administration Tongji University Shanghai 200092 China
References (46)
Show source-provided references
1. 10.1002/pc.2698910.1002/pc.26989 ↗
2. 10.1016/j.compositesa.2021.10638310.1016/j.compositesa.2021.106383 ↗
3. 10.1002/pc.2686810.1002/pc.26868 ↗
4. 10.1016/j.ast.2024.10890210.1016/j.ast.2024.108902 ↗
5. 10.1016/j.compstruct.2012.08.05910.1016/j.compstruct.2012.08.059 ↗
6. 10.1007/s13369‐025‐10061‐910.1007/s13369‐025‐10061‐9 ↗
7. 10.1016/j.compstruct.2015.01.02710.1016/j.compstruct.2015.01.027 ↗
8. 10.1016/j.tws.2025.11324410.1016/j.tws.2025.113244 ↗
9. 10.1016/j.coco.2021.10100010.1016/j.coco.2021.101000 ↗
10. 10.1016/j.compositesa.2021.10628910.1016/j.compositesa.2021.106289 ↗
11. 10.1002/pc.2886210.1002/pc.28862 ↗
12. 10.1016/j.compstruct.2022.11659410.1016/j.compstruct.2022.116594 ↗
13. 10.1002/pc.2563010.1002/pc.25630 ↗
14. 10.1016/j.tafmec.2022.10373410.1016/j.tafmec.2022.103734 ↗
15. 10.1177/109963621990034310.1177/1099636219900343 ↗
16. 10.1016/j.ceramint.2020.10.10510.1016/j.ceramint.2020.10.105 ↗
17. 10.1016/j.compositesa.2020.10612810.1016/j.compositesa.2020.106128 ↗
18. 10.1016/j.compstruct.2019.01.09510.1016/j.compstruct.2019.01.095 ↗
19. 10.1016/j.compositesb.2016.12.03710.1016/j.compositesb.2016.12.037 ↗
20. 10.1016/j.compstruct.2023.11676910.1016/j.compstruct.2023.116769 ↗
21. 10.1016/j.ijmecsci.2022.10805710.1016/j.ijmecsci.2022.108057 ↗
22. 10.1016/j.tws.2023.11115510.1016/j.tws.2023.111155 ↗
23. 10.1016/j.compositesa.2005.03.02910.1016/j.compositesa.2005.03.029 ↗
24. 10.1007/s42405-020-00315-110.1007/s42405-020-00315-1 ↗
25. 10.1016/j.compstruct.2018.11.07110.1016/j.compstruct.2018.11.071 ↗
26. 10.1016/j.engfracmech.2023.10949810.1016/j.engfracmech.2023.109498 ↗
27. 10.1177/109963621982942310.1177/1099636219829423 ↗
28. 10.1002/pc.2957310.1002/pc.29573 ↗
29. 10.1016/j.compositesb.2024.11200710.1016/j.compositesb.2024.112007 ↗
30. 10.1002/app.5345810.1002/app.53458 ↗
31. 10.1016/j.matdes.2021.10962910.1016/j.matdes.2021.109629 ↗
32. 10.1016/j.compstruct.2022.11551810.1016/j.compstruct.2022.115518 ↗
33. 10.1016/j.compositesa.2016.04.02910.1016/j.compositesa.2016.04.029 ↗
34. 10.1016/j.conbuildmat.2021.12530310.1016/j.conbuildmat.2021.125303 ↗
35. 10.1016/j.compscitech.2021.10911510.1016/j.compscitech.2021.109115 ↗
36. 10.1016/j.polymer.2009.05.01410.1016/j.polymer.2009.05.014 ↗
37. 10.1016/j.compositesb.2021.10956610.1016/j.compositesb.2021.109566 ↗
38. 10.1016/j.compstruct.2020.11304210.1016/j.compstruct.2020.113042 ↗
39. 10.1016/j.polymer.2012.07.02110.1016/j.polymer.2012.07.021 ↗
40. 10.1016/j.matdes.2016.12.04910.1016/j.matdes.2016.12.049 ↗
41. 10.1016/j.compscitech.2017.02.01810.1016/j.compscitech.2017.02.018 ↗
42. 10.1021/am500536t10.1021/am500536t ↗
43. 10.1016/j.progpolymsci.2015.07.00210.1016/j.progpolymsci.2015.07.002 ↗
44. 10.1016/j.engfracmech.2006.05.02210.1016/j.engfracmech.2006.05.022 ↗
45. 10.1016/j.compositesb.2014.10.04210.1016/j.compositesb.2014.10.042 ↗
46. 10.1016/j.compositesa.2022.10709610.1016/j.compositesa.2022.107096 ↗