Aqueous Paint Composition for Horizontal Road Marking
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Solution Overview
Problem
Current water-based paint products for horizontal road marking lack resistance to adverse environmental conditions such as high humidity and low temperatures, and have limited mechanical resistance and durability, while solvent-based and thermoplastic products pose environmental and health hazards due to VOC emissions and heating requirements.
Innovation Solution
An aqueous paint composition comprising an acrylic polymer emulsion anionically stabilized at basic pH with a volatile base, an epoxy-polyamine adduct, and a high boiling glycol-ether, which accelerates coagulation and crosslinking processes, enhancing film formation and mechanical resistance without compromising coalescence.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If water-based paint products are used for horizontal road marking, then environmental impact is reduced and health hazards are minimized, but resistance to adverse environmental conditions (high humidity, low temperatures) and mechanical resistance are insufficient
Solution Approach 1:
The patent employs a composite binder system combining acrylic polymer emulsion with epoxy-polyamine adduct and high boiling glycol-ether. This composite formulation integrates the environmental benefits of water-based systems with the durability and crosslinking capabilities of epoxy chemistry, achieving both low VOC content and enhanced mechanical resistance to adverse conditions.
Solution Approach 2:
The invention modifies the chemical composition parameters of water-based paints by incorporating specific ratios of acrylic polymer (30-70 wt%), epoxy-polyamine adduct (10-40 wt%), and high boiling glycol-ether (5-20 wt%). These parameter changes enable the paint to maintain water-based environmental advantages while achieving crosslinked film formation that resists humidity and temperature extremes.
2Reliability
If solvent-based paints are used for horizontal road marking, then mechanical resistance and durability are improved, but VOC emissions increase causing environmental and health hazards
Solution Approach 1:
The patent transforms the chemical composition from organic solvent-based to water-based by changing the volatile component parameter. The formulation uses water as the primary vehicle with minimal VOC content while incorporating epoxy-polyamine adduct to provide crosslinking chemistry that delivers solvent-based level durability without the harmful emissions.
Solution Approach 2:
The invention converts the traditional disadvantage of water-based systems (poor durability) into a benefit by incorporating epoxy-polyamine crosslinking chemistry. This creates a water-based system that achieves solvent-based level mechanical resistance and durability, turning the environmental advantage of water-based paints into a dual-benefit solution.
3Reliability
If thermoplastic materials are used for horizontal road marking, then mechanical resistance is improved, but heating requirements increase energy consumption and environmental impact
Solution Approach 1:
The patent replaces the thermal curing mechanism of thermoplastic materials with a chemical crosslinking mechanism using epoxy-polyamine adduct. This substitution eliminates the need for heating equipment and energy input, allowing the paint to cure at ambient temperatures while achieving equivalent or superior mechanical resistance through covalent bonding.
Solution Approach 2:
The invention enables the paint system to self-cure at ambient temperatures through the spontaneous chemical reaction between epoxy-polyamine adduct and moisture or catalyst. This self-service curing mechanism eliminates dependency on external heating energy input while achieving durable film formation and mechanical resistance.
4Object-affected harmful factors
If traditional water-based paints are used, then environmental impact is reduced, but drying time increases and washout resistance deteriorates
Solution Approach 1:
The patent accelerates the drying and curing process by incorporating high boiling glycol-ether (5-20 wt%) as a coalescing agent and epoxy-polyamine adduct (10-40 wt%) as a crosslinker. These parameter changes enable rapid water evaporation and simultaneous crosslinking reaction, reducing drying time from hours to minutes while maintaining water-based environmental advantages.
5Object-affected harmful factors
If traditional water-based paints are used, then environmental impact is reduced, but resistance to washout and durability worsen
Solution Approach 1:
The patent creates a composite binder system combining acrylic polymer emulsion with epoxy-polyamine adduct and high boiling glycol-ether. This composite formulation provides water-based environmental benefits while the epoxy crosslinking network delivers superior washout resistance and long-term durability comparable to solvent-based systems.
Solution Approach 2:
The invention changes the chemical structure parameter from linear polymer chains to crosslinked three-dimensional network through epoxy-polyamine adduct. This parameter change transforms the paint film from water-soluble and easily washed out to chemically resistant and durable, while maintaining the water-based vehicle for environmental compatibility.
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 paint composition achieves rapid film formation and mechanical resistance above standard levels, maintaining performance similar to traditional solvent-based or thermoplastic products while reducing environmental impact and sensitivity to temperature and humidity.
Implementation Method 1
an acrylic polymer emulsion anionically stabilized at basic pH with a volatile base and containing self-crosslinking functionalities, an epoxy-polyamine adduct
Implementation Method 2
accelerates coagulation and crosslinking processes, enhancing film formation
Implementation Method 3
an acrylic polymer emulsion anionically stabilized at basic pH with a volatile base
Implementation Method 4
enhancing film formation and mechanical resistance without compromising coalescence
Data Source
AI summary
The present invention relates to an aqueous paint composition comprising an acrylic polymer emulsion anionically stabilized at basic pH with a volatile base and containing self-crosslinking functionalities, an epoxy-polyamine adduct, and a high boiling glycol-ether. The film obtained by the aqueous paint composition according to the present invention as well as the use thereof in horizontal road marking are also described.