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Materials 2015, 8(1), 181-192; doi:10.3390/ma8010181

Fabrication and Assessment of Crumb-Rubber-Modified Coatings with Anticorrosive Properties

Mechanical Engineering Department, King Fahd University of Petroleum and Minerals (KFUPM), Dhahran 31261, Saudi Arabia
Academic Editor: Walter Caseri
Received: 30 July 2014 / Accepted: 2 December 2014 / Published: 6 January 2015
(This article belongs to the Section Manufacturing Processes and Systems)
View Full-Text   |   Download PDF [1487 KB, uploaded 6 January 2015]   |  

Abstract

Scrap tires continue to be a major source of waste due to the lack of valuable and effective disposal routes. A viable solution to this problem is to recycle crumb rubber (CR)—a granulated material derived from scrap tires—and use it to develop other valuable products. Herein we report the fabrication and characterization of CR-modified coatings with anticorrosive properties on metal substrates. By varying the particle size and concentration of CR, we have determined the coating composition that offers the highest level of erosion protection. Images from a scanning electron microscope (SEM) reveal that CR is homogenously dispersed in the coating, especially when fine particles are used. As the concentration of CR increases, the hardness of the coating decreases as a result of the elastic properties of CR. More importantly, the erosion rate of the coating decreases due to increased ductility. Following Potentiodynamic tests, the utilization of these coatings proved to be beneficial as they showed good protection against aqueous corrosion when tested in 0.5 M NaCl solution. Our newly developed coatings offer an incentive to recycling CR and open up a safe and sustainable route to the disposal of scrap tires. View Full-Text
Keywords: scrap tires; crumb rubber; coatings; erosion; hardness; SEM scrap tires; crumb rubber; coatings; erosion; hardness; SEM
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Al-Aqeeli, N. Fabrication and Assessment of Crumb-Rubber-Modified Coatings with Anticorrosive Properties. Materials 2015, 8, 181-192.

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