NDLI: Nano-Technology for Improved Dual Layer Performance

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Mallozzi, Meghan Kehr, J. Alan
Copyright Year	2008
Abstract	Fusion bonded epoxy (FBE) powders and liquid resins are commonly used for corrosion protection of steel pipeline and metals used in the oil, gas and construction markets. The FBE coating should have excellent physical properties to minimize damage during transit, installation and operation. Damage to the coating leads to higher potential corrosion sites on the metallic surface and could ultimately lead to a decrease in service life. During transportation, cinders and grit can get between pieces of the coated substrate so the coating should have superior penetration and abrasion resistance. During installation, the coating should have good impact resistance from back fill or handling equipment. Often the coated substrate is bent during installation, for example to fit the contour of the land, and should be flexible enough to prevent damage to the coating. Once in operation, the coating can be exposed to water and other chemicals and should have good resistance to these chemicals and good cathodic disbondment. There are several ways that have been used conventionally to attempt to make a FBE coating more resistant to mechanical damage. In one conventional approach, the thickness of the overall coating is increased to provide added absorption of impact and abrasion. However, as the thickness of the coating increases the flexibility of the coating decreases. Another conventional approach to enhance damage resistance is to add an abrasion resistant overcoat that has a high filler loading to increase abrasion resistance and decrease impact damage. As with the thicker coatings, higher filler loadings can dramatically decrease the flexibility of the FBE coating. As mentioned above, flexibility of the coating is very important during installation and must be tolerant to bending. Currently available damage resistant coatings force the user to compromise between toughness and flexibility. This paper will present a novel FBE coating system using nano-technology that would incorporate damage resistance AND flexibility.
Sponsorship	International Petroleum Technology Institute and the Pipeline Division
Starting Page	851
Ending Page	866
Page Count	16
File Format	PDF
ISBN	9780791848586
DOI	10.1115/IPC2008-64591
e-ISBN	9780791838358
Volume Number	2008 7th International Pipeline Conference, Volume 2
Conference Proceedings	2008 7th International Pipeline Conference
Language	English
Publisher Date	2008-09-29
Publisher Place	Calgary, Alberta, Canada
Access Restriction	Subscribed
Subject Keyword	Epoxy adhesives Water Abrasion Construction Pipelines Metals Fillers (materials) Service life (equipment) Coatings Corrosion protection Steel Transportation systems Fracture toughness Absorption Corrosion Metal surfaces Epoxy resins Damage Resins Nanotechnology
Content Type	Text
Resource Type	Article

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New Specialty Resins for High Performance Fusion Bonded Epoxy Coatings

Permeable Coatings and CP Compatibility

The Role of Coatings in the Development of Corrosion and Stress Corrosion Cracking on Gas Transmission Pipelines

Development of a New Dual Powder Coating

Development of a Low Application Temperature FBE Coating

Integrity of 3LPE Pipeline Coatings: Residual Stresses and Adhesion Degradation

Low Application Temperature Graded Structure Polyolefin Coating System Based on a Next Generation FBE for Strain-Based Design Pipelines Using High Strength Steel

Impact of Thin Film Coatings on Cathodic Protection

Long Term Performance of Fusion Bond Epoxy Coated Pipelines

Nano-Technology for Improved Dual Layer Performance

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Nano-Technology for Improved Dual Layer Performance