2021
DOI: 10.1016/j.polymer.2021.124309
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Elastocaloric effect in vulcanized natural rubber and natural/wastes rubber blends

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Cited by 24 publications
(18 citation statements)
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“…Nonetheless, no sign of strain induced crystallization (SIC) has been observed by performing in-situ Wide Angle X-Rays Scattering (WAXS) (unpresented data), contrarily to what usually seen in pure natural rubber 44 or in natural/wastes rubber using the same wastes ratio. 9,10 In our blends, the ultimate strain may not be sufficient enough to induce SIC, that is indeed expected to occur at room temperature at around 300% of deformation in a neat NR, 45 while it can be decreased down to 200% in NR-based composites.…”
Section: Tensile and Impact Propertiesmentioning
confidence: 92%
See 1 more Smart Citation
“…Nonetheless, no sign of strain induced crystallization (SIC) has been observed by performing in-situ Wide Angle X-Rays Scattering (WAXS) (unpresented data), contrarily to what usually seen in pure natural rubber 44 or in natural/wastes rubber using the same wastes ratio. 9,10 In our blends, the ultimate strain may not be sufficient enough to induce SIC, that is indeed expected to occur at room temperature at around 300% of deformation in a neat NR, 45 while it can be decreased down to 200% in NR-based composites.…”
Section: Tensile and Impact Propertiesmentioning
confidence: 92%
“…It has been shown that the incorporation of GTR wastes into a NR matrix enhances mechanical reinforcement of the resulting composites. It has been shown that this large strain reinforcement is due to the nucleation ability of the GTR wastes on the crystallization ability of the NR matrix 9 further inducing an improved elastocaloric ability 10 . Such properties may be, to a certain extent, transferred to the properties of thermoplastic elastomers including a NR/GTR rubber phase.…”
Section: Introductionmentioning
confidence: 99%
“…Indeed, we have shown that the incorporation of other type of reinforcing fillers, namely ground tyre rubber, provided improvement of the elastocaloric effect of vulcanized NR due to both SIC and thermoelastic effects. 47 We assume that the thermoelastic effect results from the chain extension assuming their Gaussian behaviour. A mechanical reinforcement resulting in a stress superior to the stress estimated from the Gaussian approximation is assumed to be induced by SIC.…”
Section: High Strain Rate Uniaxial Tensile Testsmentioning
confidence: 99%
“…The nucleation ability of rubber wastes, such as ground tyre rubber (GTR), on SIC of NR had been identified by in situ X-ray measurements 46 and infrared thermography. 47 A recent investigation demonstrated the existence of a heterogeneous infrared thermography signal in NR/GTR blends, partly arising from heterogeneous elastocaloric properties in relation with localized SIC promoted by GTR fillers. 48 In this study, we blended and vulcanized a series of natural rubber/CNC composites with the aim of characterizing their tensile properties and crystallization ability.…”
Section: Introductionmentioning
confidence: 99%
“…At a time when many sectors that use elastomeric materials are undergoing deep technological changes, such as health with implantable medical devices or mobility with the desire to decarbonize transportation, it is necessary to develop new materials and new technological solutions that must be evaluated in an increasingly limited time and at a low cost. In addition, crystallizing elastomers are increasingly studied for their elastocaloric properties [15][16][17] and criteria are needed to compare their energy performance. This is why the development of fast characterization methods for rubbers, allowing a classification of the desired performances, however basic, is today a major challenge in most industries.…”
Section: Introductionmentioning
confidence: 99%