Artificial Marble Surface Roughness and Photocatalyst Adhesion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Natural stone materials used for building and interior/exterior applications have limitations due to high specific gravity, processability issues, and non-uniform color, which restrict their use and require alternative materials with improved thermoformability and antifouling properties.
Innovation Solution
An artificial marble substrate with a specific surface roughness and a photocatalyst layer, including titanium dioxide, zinc oxide, or tungsten oxide, is developed, allowing for excellent coating formability and physical bonding without additional adhesive layers or heat treatment, enhancing antifouling properties and thermoformability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If natural stone is used for building materials, then beautiful surface pattern and antique usage are achieved, but high specific gravity and difficult processibility worsen handling and installation
Solution Approach 1:
The patent creates an artificial marble that copies the beautiful surface patterns and textures of natural stone through controlled surface roughness (Ra: 1-12 μm) and visual effects, while using lighterweight materials that are easier to handle and install, thus resolving the contradiction between aesthetic fidelity and operational ease
Solution Approach 2:
The patent modifies the surface roughness parameter to specific ranges (Ra: 1-12 μm, Rz: 5-40 μm) to achieve both the natural stone appearance and improved photocatalyst adhesion, while the artificial marble composition allows for lighter weight and better processibility compared to natural stone
2Reliability
If photocatalyst is applied to natural stone, then antifouling properties are improved, but surface roughness and porosity requirements limit application flexibility
Solution Approach 1:
The patent optimizes surface roughness parameters (Ra: 1-12 μm, Rz: 5-40 μm) to achieve optimal photocatalyst adhesion without requiring the high porosity of natural stone, enabling flexible application on various substrates including artificial marble, thus resolving the contradiction between antifouling effectiveness and application versatility
Solution Approach 2:
The patent creates localized surface structures with specific roughness characteristics that enhance photocatalyst adhesion only where needed, while maintaining overall surface aesthetics and allowing flexible substrate selection, thus achieving both reliable antifouling properties and broad adaptability
3Shape
If artificial marble has smooth surface, then appearance uniformity is improved, but photocatalyst coating formability deteriorates
Solution Approach 1:
The patent identifies and optimizes specific surface roughness parameters (Ra: 1-12 μm, Rz: 5-40 μm) that balance visual uniformity with photocatalyst coating adhesion, creating a surface that appears smooth and uniform but has sufficient micro-roughness for reliable coating formation
Solution Approach 2:
The patent creates subtle local surface variations within controlled roughness ranges that enhance photocatalyst adhesion at the micro-scale while maintaining macro-scale appearance uniformity, thus resolving the contradiction between visual smoothness and coating formability
4Reliability
If natural stone is used, then durability is achieved, but expensive cost and heavy weight increase handling complexity
Solution Approach 1:
The patent creates an artificial marble that replicates the durability and aesthetic qualities of natural stone through optimized composition and surface treatment, while using lighter materials that reduce weight and handling complexity, thus resolving the contradiction between durability and weight
Solution Approach 2:
The patent uses composite material composition for artificial marble that provides durability comparable to natural stone while incorporating lighterweight components that reduce specific gravity and handling requirements, thus achieving both reliability and reduced weight
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 artificial marble exhibits improved antifouling properties and thermoformability, making it suitable for various applications while being lighter and more versatile than natural stone, with a uniform appearance and reduced environmental impact.
Implementation Method 1
a photocatalyst layer directly on the first surface... The photocatalyst layer may include titanium dioxide (TiO2), zinc oxide (ZnO), cadmium sulfide (CdS), tungsten oxide (WO3), or a combination thereof
Data Source
AI summary
Provided is artificial marble including an artificial marble substrate having a first surface having an arithmetic mean roughness (Ra) of 1 μm to 12 μm; and a photocatalyst layer directly on the first surface. The artificial marble according to the present invention is lighter than existing natural stone and exhibits excellent thermoformability, and also has excellent antifouling properties by means of a photocatalyst, and thus can be widely used in various fields requiring artificial marble.