Mullins effect under cyclic loading-unloading tests, in uniaxial tension and uniaxial compression, together with its reversibility of high impact polystyrene/high vinyl polybutadiene rubber (HVPBR) thermoplastic vulcanisate (TPV), was investigated systematically, where styrene-butadiene-styrene was used as a compatibiliser. Morphology studies showed that sphere-like HVPBR particles were dispersed evenly in the etched TPV surface with diameters of 4-6 mm. The Mullins effect was evaluated under cyclic loading-unloading tests. Experimental results indicated that an obvious stress softening phenomenon could be observed obviously in the uniaxial loading-unloading cycles in tension and compression tests. The maximum stress during loading-unloading cycle could recover partially; moreover, the maximum stress recovery ability could be remarkably enhanced by increasing heat treatment temperature.

This paper investigates a new type of carbonbased electrodes, which were equipped with graphite and activated carbon fiber composite, to improve the performance of electrosorption. The results indicated that the highest desalination efficiency achieved 55 % and the optimal condition was 1.6 V voltage, 60 min retention time and 1.0 cm electrode distance. Freundlich isotherms successfully fitted with the respective behavior of the composite electrode and provided theoretical evidence for the desalination performance improvement. Applied in real black liquor of refined cotton, the graphite and activated carbon fiber composite electrodes achieved high removal efficiency for conductivity (59 %) and COD Cr (76 %). Similar removal performance was also observed in sodium copper chlorophyll wastewater, and removal efficiency was 37 % for conductivity and 14 % for COD Cr . For the first time, this research demonstrated the biodegradability improvement in real industrial wastewater via electrosorption treatment, suggesting a potential pretreatment technique for high-salinity wastewater.

Thermoplastic vulcanisates (TPVs) based on ethylene-vinyl acetate copolymer (EVA)/styrenebutadiene rubber (SBR) blends were prepared by dynamic vulcanisation, with the TPVs being reinforced by carbon black (CB). Experimental results indicated that the mechanical properties of dynamically vulcanised EVA/SBR blends were enhanced remarkably by the incorporation of CB. Morphology study showed that the SBR particles with average diameter of 20 μm were dispersed evenly on the etched surface of EVA/SBR/CB TPVs. The Mullins effect could be observed in the stress-strain curves of EVA/SBR TPVs and EVA/SBR/CB TPVs during the uniaxial loading-unloading cycles. Compared with EVA/SBR TPVs, CB reinforced EVA/SBR TPVs had the relatively higher stress, residual deformation and internal friction loss.

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