Cure characteristics, tensile properties and swelling behaviour of recycled rubber powder-filled natural rubber compounds

• Published in: Polymer testing Vol. 21; no. 5; pp. 565 - 569
• Main Authors: Ismail, H, Nordin, R, Noor, A.M
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 2002; Elsevier
• Subjects: Applied sciences; Cure characteristics; Exact sciences and technology; Natural rubber; Polymer industry, paints, wood; Recycled rubber powder; Swelling behaviour; Technology of polymers; Tensile properties; Waste treatment; Natural rubber; Swelling behaviour; Recycled rubber powder; Cure characteristics; Tensile properties; Vulcanization; Scrap rubber; Vulcanizate; Morphology; Concentration effect; Mechanical properties; Tensile property; Recycled material; Experimental study; Chemical reactivity; Powder
• ISSN: 0142-9418; 1873-2348
• DOI: 10.1016/S0142-9418(01)00125-8

The effect of recycled rubber powder (RRP) on cure characteristics, tensile properties and swelling behaviour of natural rubber (NR) compounds was investigated in the concentration range of 0 to 50 phr. Results indicate that the minimum torque and Mooney viscosity of the natural rubber compounds increase with increasing RRP loading whereas the scorch time and cure time exhibit a decreasing trend. Increasing RRP loading also gives natural rubber compounds better resistance towards swelling and reduces the elongation at break but the tensile stress, M100 (stress at 100% elongation) and M300 (stress at 300% elongation), increases slightly. However, the tensile strength increases up to 10 phr of RRP and then decreases.