Incorporation of a recycled rubber compound from the shoe industry in polystyrene: Effect of SBS compatibilizer content

Luna, Carlos Bruno Barreto; Araújo, Edcleide Maria; Siqueira, Danilo Diniz; Morais, Dayanne Diniz de Souza; Filho, Edson Antônio dos Santos; Fook, Marcus Vinícius Lia

doi:10.1177/0095244318819213

Cited by 45 publications

(25 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Calcium carbonate and talc are also generally used as fillers in rubber compounds. 56,57,58 On the other hand, zinc oxide is a typical vulcanization activator. TiO 2 , probably in its rutile (polymorphic form), was added to the rubber compound to provide protection against UV radiation.…”

Section: Surface Analysismentioning

confidence: 99%

Photodegradation of polystyrene/rubber waste blends compatibilized with SBS copolymer

Luna

Siqueira

Araújo

et al. 2019

Journal of Elastomers & Plastics

Self Cite

View full text Add to dashboard Cite

The aim of this study was to evaluate the photooxidative stability of polystyrene/vulcanized rubber waste blends, compatibilized with styrene–butadiene–styrene. High-impact polystyrene (HIPS) was used for comparison. All samples were exposed to ultraviolet (UV) radiation for 8 weeks and then analyzed for mechanical properties (tensile and impact), infrared spectroscopy, colorimetry, and optical microscopy. It was observed that the mechanical behavior of the photodegraded samples was a consequence of the superficial chemical modification, which was accompanied by defect formation. The most sensitive properties to aging were the impact strength and elongation at break, with HIPS being the least photostable material. The penetration depth of the UV radiation was lower for the core of the blends than for the HIPS. This finding indicated that the protective additives and mineral fillers (titanium dioxide and talc, respectively), which are present in the rubber residue, minimized the transmittance of radiation into the blends. Consequently, losses in the mechanical properties were minimized.

show abstract

Section: Surface Analysismentioning

confidence: 99%

Photodegradation of polystyrene/rubber waste blends compatibilized with SBS copolymer

Luna

Siqueira

Araújo

et al. 2019

Journal of Elastomers & Plastics

Self Cite

View full text Add to dashboard Cite

show abstract

“…Post-consumer polymeric waste is a pollution source which seriously damages the environment, generally trending to be aggravated if efficient management and recycling policies are not adopted [1][2][3]. In this context, waste from elastomeric products used in the automobile and footwear industries has been drawn attention, since the vast majority are vulcanized, therefore lasting decades to be decomposed [4,5].…”

Section: Introductionmentioning

confidence: 99%

RSM applied to PS/SBRr/SEBS Blends. Proper tool for maximized properties

Luna

Ferreira

Siqueira

et al. 2020

Mater. Res. Express

Self Cite

View full text Add to dashboard Cite

Reusing rubber waste from footwear industry emerges as great practise in order to reduce environmental damage on natural ecosystems. Based on this target, the present work aimed to apply the response surface methodology (RSM) to polystyrene/styrene-butadiene PS/SBRr blends compatibilized with styrene-ethylene-butylene-styrene (SEBS). A mixture planning was applied to PS/SBRr/SEBS blends in order to investigate mechanical and thermomechanical behaviors as response variables. Scanning electron microscopy (SEM) was used to evaluate the morphology of investigated blends, which were melt extruded in a corrotational twin screw extruder and specimens were injection moulded. High impact strength, toughness, elongation at break and thermal deflection temperature (HDT) were achieved at SEBS rich region (∼10%). At PS rich region, tensile strength, Shore D hardness and Vicat softening temperature (VST) were more expressive. Related to morphological character, blends with 10% SEBS presented the highest interfacial adhesion, with high level of plastic deformation. Gathered results show that depending on the composition, properties significantly change, being RSM a proper tool to preview trends on mechanical and thermomechanical properties. In general, PS/SBRr/SEBS blends may be properly used as packaging and building applications.Danilo Diniz Siqueira https:/ /orcid.org/0000-0002-3533-513X Renate Maria Ramos Wellen https://orcid.org/0000-0002-3565-7366

show abstract

“…Elastomeric character of SBS leads to improved mechanical ductility in addition to level up the compatibilization with an organoclay phase. [29][30][31][32][33][34][35] The purpose of this study is to investigate the effects of compatibilizer and grafted MA ratio on the morphology, mechanical, thermal, and rheological properties of PSbased composites. SBS copolymer and MA-grafted SBS (SBS-g-MA) were used as the compatibilizers and Cloisite ® 30B was used as the organoclay.…”

Section: Introductionmentioning

confidence: 99%

“…Elastomeric character of SBS leads to improved mechanical ductility in addition to level up the compatibilization with an organoclay phase. 29 –35…”

Section: Introductionmentioning

confidence: 99%

Improvement of organoclay dispersion into polystyrene-based nanocomposites by incorporation of SBS and maleic anhydride-grafted SBS

Dike

Yilmazer

2019

Journal of Thermoplastic Composite Materials

View full text Add to dashboard Cite

In this study, organoclay-containing polystyrene (PS)-based nanocomposites were fabricated by extrusion in the presence of thermoplastic elastomer modifiers. Styrene–butadiene–styrene (SBS) rubber was used as the elastomeric compatibilizer and maleic anhydride (MA) was grafted onto SBS rubber at different ratios. Grafting was made via melt blending. Cloisite® 30B was used as the organoclay and it was added to PS and PS/SBS blends using a corotating twin-screw extruder, followed by injection molding. Clay loading was kept constant as 2 wt%, and the elastomer content was varied between 0 and 40 wt% throughout the study. MA grafted SBS enhanced the intercalation/exfoliation of clay layers resulting in higher tensile strength, modulus, elongation at break, and impact strength with respect to neat PS. Composites containing 15 wt% MA grafted SBS displayed the optimum average domain size resulting in the high impact strength without deteriorating the tensile strength and modulus values. Elastomer addition increased the glass transition temperature of the samples due to branching or cross-linking during extrusion. PS and PS/SBS exhibited similar melt flow index values with their organoclay-containing composites. MA acted as a plasticizer and decreased viscosity. Scanning electron microscopy study indicated that dispersion of clay layers was observed at the PS-SBS interphase and also in the elastomer phase. Intercalated and exfoliated structures of organoclay layers were confirmed by X-ray diffraction and transmission electron microscopy analyses.

show abstract

Incorporation of a recycled rubber compound from the shoe industry in polystyrene: Effect of SBS compatibilizer content

Cited by 45 publications

References 53 publications

Photodegradation of polystyrene/rubber waste blends compatibilized with SBS copolymer

Photodegradation of polystyrene/rubber waste blends compatibilized with SBS copolymer

RSM applied to PS/SBRr/SEBS Blends. Proper tool for maximized properties

Improvement of organoclay dispersion into polystyrene-based nanocomposites by incorporation of SBS and maleic anhydride-grafted SBS

Contact Info

Product

Resources

About