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- Title
A Healable Epoxy with Comprehensive Properties by Incorporating Thermoplastic Epoxy Microspheres.
- Authors
Zhang, He; Lin, Zhilin; Xiao, Kaibin; Shi, Shengyu
- Abstract
Healable materials by incorporating thermoplastic particles as healants can not only possess healability, but also retain the intrinsic properties of the host matrix. Herein, solid healant microspheres made of a thermoplastic epoxy poly(bisphenol A‐co‐epichlorohydrin) are fabricated using a solvent evaporation technique and then incorporated into the thermosetting epoxy to formulate a healable epoxy. Slight dissolution of the microspheres is observed during the curing process of the matrix, which strengthens the bond between the microspheres and matrix. The healing performance is tested after heating at 180 °C for 20 min, and maximum healing efficiency of about 95% is achieved. Due to the thermoplastic feature of the healant, this healable system possesses multi‐time healability. Expectedly, it shows the solid microspheres increase the fracture toughness and do not evidently affect the tensile and thermal properties of the epoxy matrix. This developed healable material with comprehensive properties promises a potentially practical healing system.
- Subjects
EPOXY resins; MICROSPHERES; THERMOPLASTICS; FRACTURE toughness; THERMAL properties; THERMOPLASTIC composites; EPOXY coatings
- Publication
Macromolecular Materials & Engineering, 2022, Vol 307, Issue 7, p1
- ISSN
1438-7492
- Publication type
Article
- DOI
10.1002/mame.202100907