Natural Weathering Test of Styrene Butadiene Rubber and Recycled Acrylonitrile Butadiene Rubber (SBR/NBRr) Blends

• Published in: Polymer-plastics technology and engineering Vol. 49; no. 7; pp. 731 - 741
• Main Authors: Noriman, N. Z., Ismail, H., Rashid, A. A.
• Format: Journal Article
• Language: English
• Published: Philadelphia, PA Taylor & Francis Group 01-01-2010; Taylor & Francis; Taylor & Francis Ltd
• Subjects: ABS resins; Applied sciences; Blends; Butadiene; Exact sciences and technology; Fourier transform infrared; NBRr; Polymer blends; Polymer industry, paints, wood; Recycled; Retention; Rubber; SBR; Scanning electron microscopy; Styrenes; Technology of polymers; Tensile properties; Waste treatment; Weathering; Asia; Malaysia; Scrap rubber; Scanning electron microscopy; Glove; SBR; Polymer blends; Property composition relationship; Mechanical properties; Tensile property; Chemical degradation; Nitrile rubber; Experimental study; Retention; NBRr; Morphology; Reaction mechanism; Photochemical stability; Weathering; Recycled material; Recycling; Exposure time; Fourier transform infrared; Tensile properties
• ISSN: 0360-2559; 1525-6111
• DOI: 10.1080/03602551003664552

The effect of recycled acrylonitrile butadiene rubber (NBRr) content of SBR/NBRr blends on natural weathering was studied. Three different size of NBRr (S1; 117-334 µm, S2; 0.85-15.0 mm and S3; direct sheeted form) were used and the blends were exposed to natural weathering for 3 and 6 months. The results indicated that the SBR/NBRr blends with smallest size of NBRr (S1) show a better retention of tensile properties, which are able to withstand better weathering than coarser size (S2 and S3) of SBR/NBRr blends. The presence of hydroxyl, carbonyl and nitro group after exposure to natural weathering was detected in FTIR analysis, which related to the UV oxidation process of rubber blends. The scanning electron microscopy proved that the SBR/NBRr blends with smallest size of NBRr (S1) with higher content of NBRr, shows a better resistant to natural weathering.