Dual cure solventless coating process
The objective is to determine the feasibility of using the Dual Cure Photocatalyst technology for reduction of gaseous waste emissions through the minimization of coating solvent use. This is to be accomplished by developing a photocuring technology that would allow the use of solvent free (100% solids) formulations while preserving or improving upon the performance of conventional solvent based materials. Four Dual Cure Photocatalyst systems and one conventional catalyst system were investigated for use in curing combinations of epoxies with acrylates and acrylates with polyurethane precursors (polyol/polyisocyanate mixtures). Photocatalyst screening results showed that Dual Cure Photocatalyst Systems based upon cationic organometallic compounds alone or in combination with free radical photoinitiators or oxidants provide significantly better processing performance than systems based upon conventional catalysts or neutral organometallic compounds in combination with oxidants. Mechanical testing of materials prepared with the five catalyst systems showed that: (1) Dual Cure compositions can produce materials with better properties than the component parts and (2) Compositions cured with Dual Cure Photocatalysts produce materials superior to those cured with conventional catalyst systems in a number of cases. Cost, economic and energy analyses are presented based upon laboratory scale coating and curing studies.
- Research Organization:
- Minnesota Mining and Mfg. Co., St. Paul, MN (United States). Corporate Research Labs.
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC04-88ID12692
- OSTI ID:
- 5010075
- Report Number(s):
- DOE/ID/12692-1; ON: DE92013677
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
EPOXIDES
CURING
INDUSTRY
ENERGY CONSERVATION
SOLVENTS
MATERIAL SUBSTITUTION
ACRYLATES
AIR POLLUTION ABATEMENT
CATALYSTS
COATINGS
GASEOUS WASTES
POLYURETHANES
PROGRESS REPORT
SURFACE COATING
VOLATILE MATTER
CARBOXYLIC ACID SALTS
DEPOSITION
DOCUMENT TYPES
MATERIALS
MATTER
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
POLLUTION ABATEMENT
POLYAMIDES
POLYMERS
SYNTHETIC MATERIALS
WASTES
320305* - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Industrial Waste Management
320302 - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Materials