Products tagged with 'self-healing'

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51316-7152-Self-healing protection of pipeline corrosion by epoxy coating with preloaded inhibitors

Product Number: 51316-7152-SG

ISBN: 7152 2016 CP

Author: Frank Cheng

Publication Date: 2016

$20.00

Self-healing coatings for corrosion protection refer to those with the ability to sense the corrosive environment and to release preloaded inhibitors from the coating matrix by a controlled mode. In this work, SiO2 nanoparticle based polyelectrolyte nanocontainers were fabricated by the LbL method to store corrosion inhibitor BTA.

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An Innovative Thermoplastic Coating For CUI Applications

Product Number: 51322-18122-SG

Author: Hindrik Harm Broesder, Somaieh Salehpour, Dinko Cudic

Publication Date: 2022

$20.00

An innovative thermoplastic type of coating material based on pure isobutene homopolymer was investigated to determine whether it would be fit for purpose in CUI services at low and moderate temperatures up to 120 °C. This polymer is commonly called Polyisobutene (PIB) and has a unique set of properties that are beneficial for protecting metallic structures from corrosion. Polyisobutene is a polyolefin with a chemical structure similar to Polyethylene (PE) and Polypropylene (PP). One of the major differences is that PE and PP are solid materials with a high degree of crystallinity, whereas PIB does not have a crystallization or melting temperature. PIB has a glass transition temperature (T_g) below – 60 °C which indicates that the polymer is a liquid above this temperature.

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Autonomous Healing of Smart Coating Materials for Corrosion Protection of Oil and Gas Assets

Product Number: 51324-20901-SG

Author: Norfadilah Dolmat; Azmi Mohammed Nor; Mohd Shamsul Farid Samsudin; Russel Varley; Jane Zhang

Publication Date: 2024

$40.00

Most assets in the oil and gas sector that use metal substrates e.g., pipe supports, or structures are susceptible to corrosion problems primarily because of continual exposure of damaged areas to severe environmental conditions. The proliferation and merging of corrosion issues can cause catastrophic failure of materials, resulting in a reduction in the service life of the materials. To avoid these issues, it is crucial to protect the scratch or minor crack area as quickly as possible so that it does not spread too far. In this case, self-healing as a smart material can be applied to the coating system to repair coating damage instantaneously. Self-healing works in multiple functions where it can be used to protect against corrosion and at the same time heal the damaged area itself. In this research, the experimental work includes boronic ester (BE) and polyurethane (PU) synthesis, BE-PU coating specimen preparation, characterization and performance analysis. BE was introduced in the polyurethane (PU) and applied as an additional coating layer to the existing coating system according to PETRONAS technical standard (PTS) requirement with a thickness of approximately 300-400 µm. The healing performance of the scribed coating at room and 60°C with 80% humidity level was initially evaluated using 3D profilometer microscopy and electrical impedance spectroscopy (EIS). Corrosion resistance performance was evaluated by performing long term 3000 hours salt spray and 4200 hours cyclic UV. The mechanical performance or compatibility of the self-healing with current coating system was also assessed using a pull-off adhesion test and abrasion test. The assessment of the scratched BE-PU self-healing using 3D profilometer microscopy demonstrated remarkable healing efficiency of more than 85% and has corrosion resistance performance through salt spray and cyclic UV test. In addition, BE-PU self-healing showed significant adhesion efficiency with more than 300 psi and abrasion performance.

Products tagged with 'self-healing'

51316-7152-Self-healing protection of pipeline corrosion by epoxy coating with preloaded inhibitors

An Innovative Thermoplastic Coating For CUI Applications

Autonomous Healing of Smart Coating Materials for Corrosion Protection of Oil and Gas Assets

Association for Materials Protection and Performance