Engineered Stone Phosphorescent Chip Light Transmittance
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Solution Overview
Problem
Conventional phosphorescent artificial marble requires excessive phosphorescent pigment for sufficient phosphorescence, leading to high manufacturing costs and non-uniform texture, while achieving long-lasting luminance and natural stone-like textures is challenging.
Innovation Solution
A resin-based engineered stone comprising a light transmitting mother material with unsaturated polyester resin and silica-containing compounds, combined with a phosphorescent chip containing silica powder and phosphorescent pigment, optimized in specific weight ratios and particle sizes to achieve efficient phosphorescence and natural stone-like textures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If excessive phosphorescent pigment is used to accomplish sufficient phosphorescence performance, then phosphorescence luminance is improved, but manufacturing cost increases and pigment usage efficiency deteriorates
Solution Approach 1:
The patent changes the particle size parameter of phosphorescent pigment from conventional large particles to fine particles with average diameter of 0.01-10 μm. This parameter change increases the specific surface area and light absorption efficiency of the pigment, allowing sufficient phosphorescence luminance to be achieved with reduced pigment quantity (0.1-5 parts by weight per 100 parts resin), thereby resolving the contradiction between luminance performance and pigment usage efficiency
Solution Approach 2:
The patent creates a composite material system combining phosphorescent pigment particles with specific resin matrices (unsaturated polyester resin, acrylic resin, or epoxy resin) and silica-containing compounds. This composite structure optimizes the dispersion and light absorption characteristics of the pigment, enhancing phosphorescence efficiency and reducing the required pigment amount while maintaining high luminance output
2Illumination intensity
If phosphorescent chip is used to create texture, then phosphorescence effect is achieved, but uniform phosphorescence and natural stone-like texture are difficult to obtain
Solution Approach 1:
The patent segments the phosphorescent material into fine particles (0.01-10 μm) rather than using large chips. This segmentation allows uniform dispersion throughout the resin matrix, ensuring consistent phosphorescence across the entire surface and creating a texture that more closely resembles natural stone patterns, thereby resolving the uniformity and texture quality issues
Solution Approach 2:
The patent applies phosphorescent pigment particles with controlled size distribution (0.01-10 μm) to create localized variations in light absorption and emission. This local quality control through particle size optimization enables uniform phosphorescence while maintaining natural stone-like textural characteristics, overcoming the limitations of chip-based approaches
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 engineered stone exhibits excellent light transmittance and phosphorescence with varying surface textures depending on illumination, maintaining luminance and reducing phosphorescent pigment usage, thus enhancing commercial viability and appearance.
Implementation Method 1
a phosphorescent chip (II) including ≥ 8 wt% to ≤ 15 wt% of an unsaturated polyester resin (A), ≥ 85 wt% to ≤ 92 wt% of a silica-containing compound (B'), and a phosphorescent pigment (D)
Data Source
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AI summary
An engineered stone includes a light transmitting mother material (I) and a phosphorescent chip (II), wherein the light transmitting mother material (I) includes 7 wt% to 12 wt% of an unsaturated polyester resin (A) and 88 wt% to 93 wt% of a silica-containing compound (B) based on a total amount of the light transmitting mother material (I), the light transmitting mother material (I) further includes 0.01 part by weight to 1 part by weight of an organic/inorganic pigment (C) based on 100 parts by weight of the unsaturated polyester resin (A), the phosphorescent chip (II) includes 8 wt% to 15 wt% of an unsaturated polyester resin (A), 85 wt% to 92 wt% of a silica-containing compound (B'), and a phosphorescent pigment (D) based on a total amount of the phosphorescent chip (II), the phosphorescent pigment (D) is included in an amount of 2 parts by weight to 10 parts by weight based on 100 parts by weight of the unsaturated polyester resin (A), and the silica-containing compound (B') includes 20 wt% to 30 wt% of a silica powder (b1) based on a total amount of the phosphorescent chip (II).