Polyitaconic acid macromolecule primer for adhesive bonding and corrosion control of aluminum
When polyitaconic acid (PIA) macromolecules are applied as water-soluble primers in polyurethane (PU) adhesive/aluminum adherend joint systems, they interact preferentially with the hydrated oxide aluminum to form hydrogen bonds, and with the isocyanate groups in the adhesive to yield polymer-to-polymer chemical bonding. This chemical coupling between the adhesive and adherend acts significantly to promote interfacial adhesive bonds. The arrangement of a near monolayer of PIA intermediate film plays a key role in governing the adhesion durability of the joint system and the corrosion resistance of the aluminum upon exposure to corrosive fluids. The bond stability and the corrosion resistance are due primarily to the formation of interfacial reaction products which are less susceptible to hydrolysis.
- Research Organization:
- Brookhaven National Lab., Upton, NY (USA)
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 6296146
- Report Number(s):
- BNL-39985; CONF-8705171-1; ON: DE87013306
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360105* -- Metals & Alloys-- Corrosion & Erosion
ADDITIVES
ADHESIVES
ALUMINIUM
BONDING
CORROSION PROTECTION
ELEMENTS
FABRICATION
INTERFACES
JOINING
JOINTS
MATERIALS
METALS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
POLYAMIDES
POLYMERS
POLYURETHANES
SYNTHETIC MATERIALS