Modified Geopolymer Coatings for Organic Polymer Adhesion
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Solution Overview
Problem
There is a need for modified geopolymer compositions that can effectively coat organic polymer substrates and provide enhanced aesthetic, flame, heat, light, mechanical, or chemical resistance, as existing geopolymer compositions fail to adhere strongly to such substrates.
Innovation Solution
A stabilized geopolymer-organic polymer latex composition is developed, comprising a uniform mixture of a geopolymer and organic polymer latex, with a specific Si/Al molar ratio and water concentration, which forms a highly adherent layer on organic polymer substrates after curing and drying, achieving a bond strength of 50 kPa or greater.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If unmodified geopolymer compositions are used, then the composition is simple and easy to manufacture, but the bond strength to organic polymer substrates is insufficient (less than 50 kPa)
Solution Approach 1:
The patent applies composite materials by combining geopolymer with organic polymer latex to create a modified geopolymer composition. This composite approach enables the coating to achieve bond strength of 50 kPa or greater to organic polymer substrates, resolving the contradiction between simplicity and adhesion performance.
Solution Approach 2:
The patent modifies the geopolymer composition by adjusting parameters including adding organic polymer latex, controlling water concentration, and optimizing Si/Al molar ratio. These parameter changes transform the geopolymer from having insufficient adhesion to achieving strong bonding while maintaining practical manufacturability.
2Reliability
If geopolymer composition is modified to improve adhesion, then bond strength increases, but the manufacturing process becomes more complex
Solution Approach 1:
The patent achieves reliable adhesion through controlled parameter modifications: incorporating organic polymer latex at specific concentrations, adjusting water content, and optimizing Si/Al molar ratio. These controlled changes improve adhesion reliability while keeping the manufacturing process manageable through defined compositional ranges.
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 modified geopolymer composition provides a strong, adherent coating on organic polymer substrates, enhancing their resistance properties and ensuring a durable bond, unlike unmodified geopolymer compositions that do not adhere or adhere weakly.
Implementation Method 1
from 0.05 weight percent to 10 weight percent of a latex stabilizer
Implementation Method 2
bond strength of 50 kilopascals (kPa) or greater
Data Source
AI summary
The present invention relates to modified geopolymer compositions, geopolymer-coated organic polymer substrates, and methods of manufacturing and articles comprising same.