Rheological Study on Curing Behavior of Aqueous Melamine-formaldehyde Resin
Overview
Background
Melamine and formaldehyde reaction – I. (Methylolation)
Melamine and formaldehyde reaction – II. (Condensation)
Description of curing behavior of MF
Challenge of the Study
Investigation Hypothesis
Rheology is the science of flow and deformation of matter.
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Constitutive Relations
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Range of Rheological Material Behavior
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Classical Extremes: Elasticity
Classical Extremes: Viscosity
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Measurement tool: Rheometer
Rheometer & settings
Diagram of Rheological Test
Relationship between torque & viscosity
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Summary of Case #1
Case study-2. Comparison of Curing Rate with & without accelerating agent
Cure vs. temperature of aqueous MF resin (non-accelerated)
Cure rate vs. temperature of aqueous MF resin (accelerated)
Comparison of curing profiles (Significant energy saving)
Summary of Case #2
Case Study-3. DOE for Optimization
Background of DOE
DOE Description
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Summary of Case # 3
Case Study-4. Cure vs. Amine Type
Background of Using Different Amines
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Summary of Case # 4
Conclusion
Author: Clarkson University