Accepted Manuscript Original article Effect of Phenol Formaldehyde Resin as Vulcanizing Agent on Flow Behavior of HDPE/PB blend Moayad N. Khalaf PII: DOI: Reference:
S1018-3647(13)00090-6 http://dx.doi.org/10.1016/j.jksus.2013.12.002 JKSUS 244
To appear in:
Journal of King Saud University - Science
Received Date: Accepted Date:
21 July 2013 13 December 2013
Please cite this article as: M.N. Khalaf, Effect of Phenol Formaldehyde Resin as Vulcanizing Agent on Flow Behavior of HDPE/PB blend, Journal of King Saud University - Science (2013), doi: http://dx.doi.org/10.1016/ j.jksus.2013.12.002
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Effect of Phenol Formaldehyde Resin as Vulcanizing Agent on Flow Behavior of HDPE/PB blend
Moayad N. Khalaf Chemistry Department, College of Science, University of Basrah, P O Box 773, Basrah-Iraq
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Effect of Phenol Formaldehyde Resin as Vulcanizing Agent on Flow Behavior of HDPE/PB blend
Abstract Thermoplastic elastomer (TPEs) based on High density polyethylene (HDPE) / Polybutadiene (HDPE/PB = 70/30 parts) blends containing (1, 3, 5, 7 and 10 wt%) of dimethylol phenolic resin as vulcanizing agent in presence of SnCl2 as catalyst were prepared. The dimethylol phenolic resin was prepared in our laboratory. The blends were compounded in mixer-60 attached to a Haake rheochord meter-90. The rheological properties were measured at temperatures (140, 160, 180 and 200oC). The linearity of the flow curve appeared for 5 percent of the vulcanizing agent. The shear stress and shear viscosity have increased upon increasing the shear rate over a range of loading levels of vulcanizing agent of (1, 3, 5, 7 and 10%). This may be attributed to the increased vulcanization between polyethylene and the rubber blend. The flow behavior index of the system shows a pseudo plastic nature behavior (since n
