Solid Polymeric Binder in Multi-Component Epoxy Cement Composition
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Solution Overview
Problem
Existing ECC systems with liquid polymers suffer from adverse effects on strength and adhesion to substrates, necessitating a composition that improves shrinkage behavior, compressive strength, and adhesion while minimizing the negative impacts of liquid polymers.
Innovation Solution
A multi-component composition comprising an epoxy component, a hardener component, a cement component, and 0.1 to 10% by weight of a solid polymeric binder at 23°C, where the epoxy component includes a reactive epoxy resin, the hardener component includes a polyamine, and the cement component includes cement and a filler, with water added for hardening, optimizing the mixture's properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If liquid polymers are added to improve adhesion and workability, then adhesion and workability are improved, but compressive strength and adhesion to substrates deteriorate
Solution Approach 1:
The patent changes the physical state parameter of the polymer from liquid to solid form. Solid polymers are added as powders or granules with controlled particle size and melting points above 23°C, transforming how the polymer integrates into the cement matrix while maintaining workability improvements without compromising compressive strength
Solution Approach 2:
The patent creates a composite system combining cement, epoxy resin, and solid polymer in specific weight ratios (0.1-10 wt.% solid polymer). This multi-component composite leverages the strengths of each material: cement provides structural backbone, epoxy enhances adhesion, and solid polymer improves workability and flexibility without the detrimental effects of liquid polymers
2Stability of the object's composition
If liquid polymers are added to reduce shrinkage, then shrinkage behavior is improved, but compressive strength and adhesion deteriorate
Solution Approach 1:
The patent changes the physical state parameter of the polymer from liquid to solid form. Solid polymers are added as powders or granules with controlled particle size and melting points above 23°C, transforming how the polymer integrates into the cement matrix while maintaining workability improvements without compromising compressive strength
Solution Approach 2:
The patent creates a composite system combining cement, epoxy resin, and solid polymer in specific weight ratios (0.1-10 wt.% solid polymer). This multi-component composite leverages the strengths of each material: cement provides structural backbone, epoxy enhances adhesion, and solid polymer improves workability and flexibility without the detrimental effects of liquid polymers
3Adaptability or versatility
If liquid polymers are added to improve adhesion to damp substrates, then adhesion to damp substrates is improved, but overall adhesion and strength deteriorate
Solution Approach 1:
The patent changes the physical state parameter of the polymer from liquid to solid form. Solid polymers are added as powders or granules with controlled particle size and melting points above 23°C, transforming how the polymer integrates into the cement matrix while maintaining workability improvements without compromising compressive strength
Solution Approach 2:
The patent creates a composite system combining cement, epoxy resin, and solid polymer in specific weight ratios (0.1-10 wt.% solid polymer). This multi-component composite leverages the strengths of each material: cement provides structural backbone, epoxy enhances adhesion, and solid polymer improves workability and flexibility without the detrimental effects of liquid polymers
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 enhances adhesion, compressive strength, and reduces shrinkage, maintaining positive properties of ECC systems while mitigating the drawbacks of liquid polymers, as demonstrated by improved processability, shrinkage, and bond strength in floor covering applications.
Implementation Method 1
The at least one polymeric binder has a melting or softening temperature of more than 23°C... to improve the adhesion... of a multi-component composition
Implementation Method 2
to reduce the shrinkage of a multi-component composition
Implementation Method 3
to improve the adhesion and/or compressive strength
Implementation Method 4
an epoxy component comprising at least one reactive epoxy resin, a hardener component comprising at least one hardener for the epoxy resin
Data Source
AI summary
The present invention relates to a multi-component composition containing an epoxy component comprising at least one reactive epoxy resin, one hardener component comprising at least one hardener for the epoxy resin, one cement component comprising cement and at least one filler, and also from 0.1 to 1% by weight, based on the total weight of the multi-component composition, of at least one polymeric binder that is solid at 23°C. Addition of the at least one polymeric binder can significantly improve relevant properties of the multi-component composition, examples being more particularly adhesion thereof, compressive strength thereof and shrinkage thereof. Further aspects of the present invention relate to a process for producing a coated substrate with the aid of the composition described above, and also coated substrates that can be produced by a corresponding process.