About thermo-oxidative ageing at moderate temperature of conventionally vulcanized natural rubber

Grasland, François; Chazeau, Laurent; Chenal, Jean-Marc; Schach, Regis

doi:10.1016/j.polymdegradstab.2018.12.029

Cited by 55 publications

(37 citation statements)

References 44 publications

(53 reference statements)

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“…Similarly, it was previously found that sodium alginate can be used as a thickening and dispersing agent for coal fly ashes as fillers in the NR matrix [ 24 ]. Additionally, the thickness of the composite films was decreased with higher MFC loading, which could be due to dense-packed cellulose formation through hydrogen bonding between abundant hydroxyl groups on cellulose chains [ 7 ].…”

Section: Resultsmentioning

confidence: 99%

“…To improve properties, NR products are usually modified by the vulcanization process. By an addition of sulfur and heat, linear chains of rubber are chemically cross-linked to form covalent bonds and consequently the vulcanized molecular network of rubber is strengthened [ 6 , 7 ]. However, this process has drawbacks regarding energy consumption in the production of rubber products.…”

Section: Introductionmentioning

confidence: 99%

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Alginate as Dispersing Agent for Compounding Natural Rubber with High Loading Microfibrillated Cellulose

et al. 2021

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Natural rubber (NR) reinforced with high loading of microfibrillated cellulose (MFC) was fabricated in the presence of sodium alginate as a thickening and dispersing agent in NR latex. The tensile strength and Young’s moduli of the 50% wt. MFC loading-NR composites were 13.6 and 1085.7 MPa, which were about 11.3- and 329-times enhanced compared with those of the neat NR film. The maximum elongation at 313.3% was obtained from 30% MFC loading, which was a 3.3-fold increase of that of the NR film. The thermal stability of MFC–NR films was slightly reduced, while the glass transition temperature remained unchanged at −64 °C. The MFC–NR films exhibited high water adsorption ability, toluene resistance, and biodegradability.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Alginate as Dispersing Agent for Compounding Natural Rubber with High Loading Microfibrillated Cellulose

et al. 2021

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“…Chazeau, Chenal and coworkers demonstrated that in elastomer composites of natural rubber and zinc oxide, aggregates of fillers are surrounded with a high crosslinked phase, which in turn promotes spatial inhomogeneity. 415 In opposite to this hypothesis, it was also proposed that the presence of (nano) fillers reduces the density of defects like loops. In hydrogel composites formed from a physical association network based on poly(lactic acid)-poly(ethylene oxide)-poly(lactic acid) reinforced with nanoclay, small-angle neutron scattering studies confirmed adsorption of the midblock on the nanoclay.…”

Section: Polymer Networkmentioning

confidence: 99%

Defects and defect engineering in Soft Matter

et al. 2020

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“…Elastomers, such as natural rubber (NR) and butadiene styrene rubber, are widely used because of their large strain reversible deformability [ 1 , 2 , 3 , 4 ]. In application, one of the problems with elastomers is thermo-oxidative aging, leading to the deterioration of properties and early failure.…”

Section: Introductionmentioning

confidence: 99%

MXene Enabling the Long-Term Superior Thermo-Oxidative Resistance for Elastomers

et al. 2021

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The ability of long-term thermo-oxidative resistance is very important for elastomers in application. However, many conventional antioxidants are difficult to realize the long-term thermo-oxidative resistance. To overcome this limitation, a design strategy is introduced by combing elastomers with MXene and natural rubber (NR) is chosen as a model material. MXene is efficient in absorbing oxygen and the generated free radicals in the NR matrix and can inhibit the diffusion of oxygen toward the interior. Moreover, MXene, like graphene and carbon black, absorbs molecular chains, inhibiting the migration of MXene toward the surface of the sample. Such characteristics of MXene endow NR/MXene with the long-term outstanding thermo-oxidative resistance. For example, after three days of the thermo-oxidative process for NR/MXene, the tensile strength is 19 MPa and the retention of tensile strength is 63%, which far exceeds the effects of conventional antioxidants. This work not only provides a good guide for the universal design of elastomers with long-term thermo-oxidative resistance but also expands the application of MXene.

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About thermo-oxidative ageing at moderate temperature of conventionally vulcanized natural rubber

Cited by 55 publications

References 44 publications

Alginate as Dispersing Agent for Compounding Natural Rubber with High Loading Microfibrillated Cellulose

Alginate as Dispersing Agent for Compounding Natural Rubber with High Loading Microfibrillated Cellulose

Defects and defect engineering in Soft Matter

MXene Enabling the Long-Term Superior Thermo-Oxidative Resistance for Elastomers

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