Self-healing, reprocessing and 3D printing of transparent and hydrolysis-resistant silicone elastomers

In this study, a transparent and hydrolysis-resistant silicone elastomer with self-healability, reprocessability and 3D printability is facilely fabricated by successively thiol-ene UV-curing between thiol and vinyl functionalized polysiloxanes, and thermocuring between carboxyl and amido functionalized polysiloxanes. These obtained elastomers show an excellent healing efficiency of 97%, and the healing processes are repeatable for many times. Moreover, these elastomers can be repeatedly reprocessed with a recovery of 90% of virgin mechanical strengths, and the reprocessed elastomers can still repair damages with an efficiency over 90%. These self-healing and reprocessing behaviors mainly derive from the rearrangement of crosslinked networks via reversible breakage and reformation of ionic bonds. Importantly, the silicone elastomers are transparent with a transmittance of over 90% in visible light and hydrolysis-resistant to hydro-thermal treatment. Besides, the silicone elastomers can be fabricated into various self-healable architectures via 3D printing. Therefore, a feasible approach is provided to impart reversible ionic association induced self-healing and reprocessing to 3D printable silicone elastomers.Graphical abstract
Source: Chemical Engineering Journal - Category: Chemistry Source Type: research

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Source: Journal of Cardiac Surgery - Category: Cardiovascular & Thoracic Surgery Authors: Tags: CASE REPORT Source Type: research
Condition:   Inguinal Hernia Intervention:   Drug: Bupivacaine Hydrochloride Sponsor:   Ataturk University Not yet recruiting
Source: - Category: Research Source Type: clinical trials
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Source: Fight Aging! - Category: Research Authors: Tags: Daily News Source Type: blogs
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Source: The American Journal of Surgery - Category: Surgery Source Type: research
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Source: Annals of Coloproctology - Category: Gastroenterology Tags: Ann Coloproctol Source Type: research
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Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
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