کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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694107 | 889922 | 2007 | 5 صفحه PDF | دانلود رایگان |

High performance composite coating (HPCC) provides a potential, excellent coating alternative for integrity maintenance of pipelines in the northern area. In this work, the physical, chemical and mechanical properties of HPCC were investigated to determine the microstructure, water permeability, cathodic disbondment resistance, electrochemical impedance, adhesion and impact resistance of the coating. It is shown that the addition of polyethylene layer significantly improves the compactness of the coating and enhances its resistance to water and chemical penetration, resulting in a small water vapor transmission rate and permeance. There is a quite small cathodic disbondment of HPCC under the standard test. The impedance characteristic measured on HPCC-coated steel shows a capillary behavior, indicating an effective protection over the underlying steel from corrosion. The adhesion of HPCC to the substrate ranks top one according to both ASTM and CSA standards. The impact energy of HPCC is 9.7 J at 22 °C, and about 10.2 J around 0 °C.
Journal: Progress in Organic Coatings - Volume 60, Issue 2, September 2007, Pages 148–152