A comparative approach for self‐healing of carbon nanotube epoxy/polycaprolactone composites: Joule, Infrared, and oven heating

Polymer Composites, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 7, 2025

Abstract The self‐healing process in PCL (polycaprolactone)/epoxy blends is studied order to optimize the healing and understand its underlying mechanism. For this purpose, PCL/epoxy are prepared with without multiwall carbon nanotubes (MWCNTs) addition. Three different heat‐inducement techniques used (an oven, Joule effect, infrared (IR) lamp) as a function of time (2, 5, 10, 15 min) concentration (5, wt%). results obtained demonstrate that addition MWCNTs polymer matrix accelerates process, attributed an improved heat diffusion MWCNTs/PCL/epoxy blends. best were highest PCL, caused by higher probability crack formation over reservoir. most efficient induce conventional oven Effect, respectively, being faster latter method, it induces homogeneous internal heating material. Moreover, effect can be controlled remotely, while IR radiation noncontact technique, which applied situ. three methods evaluated considering these factors alongside their energy efficiency, establishing method choose specific source for similar systems. Highlights reinforced have been manufactured. Variable sources analyzed. influence on studied. constitutes system.

Language: Английский

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Multivalent Polymer-Grafted Nanoparticles as Reinforcing Fillers for 3D Printable Self-Healing Elastomers

ACS Materials Letters, Journal Year: 2024, Volume and Issue: 6(9), P. 4175 - 4182

Published: Aug. 15, 2024

3D printable elastomers capable of self-healing are attractive for fabricating complex biomimetic and soft-robotic devices. While polymer network reorganization can be enabled with dynamic bond exchange, this strategy typically faces intrinsic trade-offs between healability, processability, mechanical performance. Thus, new material design strategies that overcome these needed. Here, we report the use multivalent polymer-grafted nanoparticles (PGNPs) as reinforcing fillers photoresins. As each nanoparticle is functionalized thousands chains engaging in interactions surrounding elastomeric matrix, bulk modulus composite increased without impairing local segmental motion necessary self-healing. We also examine PGNP structural parameters to establish structure–property relationships permit fine-tuning Finally, enhancements do not impair materials' manufacturability, they used feedstocks digital light printing produce high-resolution objects.

Language: Английский

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Utilizing thiol-ene chemistry to explore the effect of network architecture on the properties of self-healing elastomers

European Polymer Journal, Journal Year: 2025, Volume and Issue: unknown, P. 113736 - 113736

Published: Jan. 1, 2025

Language: Английский

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Vat Photopolymerization of Semicrystalline Polymers: Effects of Crosslinking on Crystallinity

Polymer, Journal Year: 2025, Volume and Issue: unknown, P. 128407 - 128407

Published: April 1, 2025

Language: Английский

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