On the interfacial healing of a supramolecular elastomer

Grande, Antonio Mattia; Garcia, Santiago J.; Zwaag, Sybrand van der

doi:10.1016/j.polymer.2014.11.052

Cited by 41 publications

(46 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The surprisingly higher healing efficiency of the highly crosslinked polymer at short times can be explained by the higher interfacial wetting facilitated by the formation of a smoother surface during the fracture process due to the more brittle character of this polymer. The effect of surface wetting is also reported in literature 20,28 demonstrating its prominent inuence on the kinetics of the healing process in polymeric materials. Interestingly, despite the differences in healing degrees at short healing times, both polymers showed a similar degree of healing at long healing times (t > 600 min) suggesting an equivalent extent of chain bridging at the fracture site.…”

Section: Effect Of Curing On Tensile Mechanical Response Gap Closurementioning

confidence: 66%

“…All experiments were recorded with a camera in order to detect the crack initiation and propagation. 28…”

Section: Polymer Preparationmentioning

confidence: 99%

“…To estimate the material resistance to crack propagation, the critical J-integral value (J IC ) was selected as reference parameter. 28 Critical fracture energy values, J IC , for each sample were calculated according to the following equation:…”

Section: Effect Of Curing On Tensile Mechanical Response Gap Closurementioning

confidence: 99%

“…26 However, methods sensitive to discontinuities, such as fracture mechanics, 27 can potentially lead to a better understanding of the phenomena involved during the healing process and can provide more realistic values of the obtained healing degrees. 28,29 In the case of selfhealing polymers with elasto-plastic behaviour (such as the dual network presented in our previous work 11 ) accurate quantication of the fracture toughness is feasible using a fracture mechanics protocol based on the J-integral evaluation. 30 In this work we analyse the effect of curing time on the timeresolved behaviour of a healable hybrid dual network polymer and its impact on mechanical, viscoelastic and healing properties.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Effect of curing on the mechanical and healing behaviour of a hybrid dual network: a time resolved evaluation

et al. 2016

Self Cite

View full text Add to dashboard Cite

show abstract

Section: Effect Of Curing On Tensile Mechanical Response Gap Closurementioning

confidence: 66%

“…All experiments were recorded with a camera in order to detect the crack initiation and propagation. 28…”

Section: Polymer Preparationmentioning

confidence: 99%

Section: Effect Of Curing On Tensile Mechanical Response Gap Closurementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effect of curing on the mechanical and healing behaviour of a hybrid dual network: a time resolved evaluation

et al. 2016

Self Cite

View full text Add to dashboard Cite

show abstract

“…The results indicate that neat ENR and ENR‐Zn could not be healed under similar healing conditions (Figure S12, Supporting Information). Figure d plots the healing efficiency against healing time of different self‐healing materials . It can be seen that our supramolecular elastomer not only has the fastest healing speed but also exhibits high‐healing efficiency beyond the property space of previously reported self‐healing materials.…”

Section: Resultsmentioning

confidence: 92%

Hierarchically Structured Self‐Healing Sensors with Tunable Positive/Negative Piezoresistivity

Guo

et al. 2018

Adv Funct Materials

191

113

View full text Add to dashboard Cite

It is a challenge to manufacture flexible sensors that possess easily distinguishable biomotion signals, strong response reliability, and excellent self-healing capability. Herein, a self-healing sensor with tunable positive/ negative piezoresistivity is designed by the construction of hierarchical structure connected through supramolecular metal-ligand coordination bonds. The developed sensors can be integrated with the human body to detect multiple tiny signals, such as pronunciation, coughing, and deep breathing. Interestingly, the nanostructured elastomer sensor with and without a flexible yarn electrode shows negative and positive current signals, respectively, making it easy to be identify. Furthermore, it exhibits very fast (2 min), autonomous, and repeatable self-healing ability with high-healing efficiency (88.6% after the third healing process). The healed samples still possess flexibility, high sensitivity, and accurate detection capability, even after bending over 10 000 cycles. The excellent biomimetic self-healing performance combined with the tunable piezoresistivity make it promising for next-generation wearable electronics.

show abstract