Affiliation:
1. Institute of Polymer Engineering, The University of Akron, Akron, OH 44325-0301
Abstract
Tire and waste rubber recycling is a very important issue facing the rubber industry and science community. Compounding the ground rubber tire (GRT) with commercial polyolefins is a possible and effective way of used tire recycling which can provide new rubber/plastic blends at a much lower cost. In the present study, GRT and ultrasonically devulcanized GRT (DGRT) are incorporated into a polypropylene. In addition, DGRT is compounded and dynamically revulcanized (RGRT) in polypropylene. Compounding and dynamic revulcanization is carried out by means of a twin screw extruder and Brabender internal mixer. Sulfur and phenolic resin curing systems as well as various compatibilizers are used. Mechanical properties, rheology and morphology as well as thermal stability and melting behavior of the resulting rubber/plastic blends are studied. The obtained blends show an excellent processability along with impact strength higher than that of pure polypropylene. Among various compatibilizers and cure systems utilized, the phenolic resin cure system and maleic anhydride grafted PP compatibilizer can significantly improve the Young's modulus and tensile strength of plastic/rubber blends.
Subject
Materials Chemistry,Polymers and Plastics
Reference28 articles.
1. Handbook of Thermoplastic Elastomers
2. 4. J. Paul. 1986. Encyclopedia of Polymer Science and Engineering, H. Mark, Ed. 2nd ed., New York: John Wiley & Sons: 14-787.
Cited by
79 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献