Epoxy Paving Composition Using Cyclohexylene Polyamine Curing
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Solution Overview
Problem
Existing paving materials for landscape paving require high water permeability, weather resistance, and strength, with a focus on maintaining strength in humid environments, while existing methods involving epoxy resin fiberization are complex and result in decreased strength upon exposure to rain.
Innovation Solution
A paving material composition comprising an epoxy resin, a polyamine compound represented by formula (1) or its modified products, and an aggregate, with specific ratios and properties to enhance water permeability, weather resistance, and strength retention in humid conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fiberizing by kneading an epoxy resin with fibers is used to improve weather resistance, then weather resistance is improved, but the process complexity increases and strength retention in humid environments deteriorates
Solution Approach 1:
The invention extracts the fiber component from the kneading process and replaces it with a simplified curing agent system. Instead of incorporating fibers into the epoxy resin through complex kneading, the patent uses a specific polyamine compound (formula 1) or its modified products as curing agents, which achieve weather resistance through chemical curing rather than physical fiber reinforcement.
Solution Approach 2:
The invention changes the chemical parameters of the curing agent system by specifying polyamine compounds with particular structural features (formula 1: H2N-CH2-X-CH2-NH2 where X is a cyclohexylene group) or their modified products. This parameter change in the curing mechanism enables the epoxy resin to achieve both weather resistance and strength retention without requiring complex fiber incorporation processes.
2Quantity of substance
If high water permeability is achieved through material composition, then water permeability is improved, but strength retention in humid environments deteriorates
Solution Approach 1:
The invention applies local quality by creating distinct functional zones within the paving material structure. The epoxy resin matrix with specific curing agents provides water permeability in certain regions, while the cured product structure maintains strength in other regions. This localized functional differentiation allows the material to simultaneously achieve high water permeability and strong strength retention in humid environments.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The composition achieves high water permeability, weather resistance, and maintains structural strength even in humid environments, with improved strength retention rates.
Implementation Method 1
an epoxy resin curing agent containing 50% by mass or more of a polyamine compound represented by the following formula (1) or a modified product thereof
Data Source
AI summary
A paving material composition containing: an epoxy resin; an epoxy resin curing agent containing 50% by mass or more of a polyamine compound represented by the following formula (1) or a modified product thereof, (A); and an aggregate. H2N-CH2-X-CH2-NH2 (1) wherein X is a cyclohexylene group.