Document Type : Review Articles
Chem. Eng. Dept., Faculty of Eng., Minia university. Minia, Egypt.
Production & Design Engineering, Faculty of Engineering - Minia University, Egypt
More than 60 percent of the world’s oil and gas transmission pipelines are more than 40 years old and for the most part in urgent need of rehabilitation in order to re-establish the original operating capacity. So, these steel pipelines may suffer from internal or external metal loss due to erosion and/or corrosion.
Reinforced Epoxy materials as an alternative to carbon steel pipes are highly useful especially for corrosive. They present an exceptional arrangement of chemical resistance, thermal resistance, high mechanical properties which is achieved by the selection of highly performing components and a properly designed structure. The reinforced polymers like poly vinyl chloride (PVC) for natural gas transportation at high pressure (approximately 5 MPa) are investigated to be used instead of steel pipeline. Polyvinyl chloride (PVC) polymer is used. Three types of resins (epoxy, polyester and poly vinyl acetate) were used with different thickness. These resins can make uniform distribution of stress on the reinforced polymer.
The results shows the strength of PVC/PVC sandwich plates is higher than PVC/PVC single plate by 50 % for epoxy, 65% for polyester and 100% in case of poly vinyl acetate, moreover the poly vinyl acetate gave best results for energy to fraction and adhesion shear tests.