Effect of nanoclay on mechanical and thermal properties of triblock SBS (styrene–butadiene–styrene) and its binary blend nanocomposites: comparison between polyethylene and polystyrene. (26th November 2018)

• Record Type: Journal Article
• Authors: Azizi, Hamed; Faghihi, Jalal
• Is Part Of: Plastics, rubber, and composites. Volume 47:Number 10(2018)
• Page Start: 429
• Page End: 437
• Publication Date: 2018-11-26
• Subjects: SBS blend -- nanoclay -- dispersion -- thermal stability -- mechanical properties; Plastics -- Periodicals; Rubber -- Periodicals; Polymeric composites -- Periodicals; Polymer engineering -- Periodicals; 668.9
• DOI: 10.1080/14658011.2018.1515286
• Languages: English
• ISSNs: 1465-8011

Abstract

ABSTRACT: In this study, the effect of organo-modified nanoclay (OMMT) on the mechanical and thermal properties of SBS and its blend with low-density polyethylene (LDPE) and polystyrene was investigated. The effect of nanoclay content in the presence of LDPE or PS on the final properties of SBS was studied by tensile tester, dynamic mechanical thermal analysis (DMTA), thermal gravimetric analysis (TGA), X-ray diffraction (XRD) analysis and scanning electron microscopy (SEM). Addition of nanoclay affected the mechanical and rheological properties. From X-ray and DMTA results, it was found that due to more affinity between the nanoparticles and the SBS/PE blend, the 2 theta characteristic peak of nanoclay shifted to lower angles. SEM studies showed better dispersion and lower inter-particle distance of nanoparticles in SBS/PE composites in comparison with SBS/PS and SBS composites, confirming the XRD and DMTA results. It can be concluded that nanoclay acts as a compatibilizer in the SBS/LLDPE blend. TGA studies showed higher stability of SBS/PS composites compared to SBS and SBS/PE ones.