Organic Glass With Fluorescent Bubble Layer

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Solution Overview

Problem

Existing organic glass products with bubbles lack controllability and surface defects, limiting their decorative and artistic applications due to uncontrolled bubble formation and lack of color.

Innovation Solution

The development of an organic glass with a fluorescent bubble layer created from fluorescent polymethyl methacrylate beads and methyl methacrylate prepolymers, allowing for controlled bubble formation and color, achieved through a specific preparation method involving adhering an acrylic plate to a toughened glass, coating methyl methacrylate prepolymers, and sequential hardening and foaming processes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If traditional transparent foaming agents are used to generate bubbles in the temperature range of 100-160°C, then the production process is simple, but the controllable degree of bubbles is low and surface defects occur

Engineering Contradiction:
Improveproduction process simplicityVSAvoidbubble controllability
Core Design Contradiction:
Ease of manufactureVSManufacturing precision

Solution Approach 1:

The invention changes the fundamental parameter of bubble generation from thermal decomposition (100-160°C) to photopolymerization-induced expansion. The fluorescent polymethyl methacrylate beads remain stable during mixing and casting, then expand uniformly when exposed to UV light, achieving precise spatial and temporal control of bubble formation without surface defects

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The invention replaces the thermal-mechanical foaming system with a photochemical system. Instead of using heat to decompose foaming agents and generate gas pressure, the patent uses UV light to trigger photopolymerization of methyl methacrylate monomer around the fluorescent beads, causing controlled expansion and bubble formation through chemical rather than thermal mechanisms

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Ease of manufacture

If traditional transparent foaming agents are used to generate bubbles, then the production process is simple, but the bubbles have no color and cannot meet decorative requirements

Engineering Contradiction:
Improveproduction process simplicityVSAvoiddecorative effect
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The invention incorporates fluorescent polymethyl methacrylate beads that contain fluorescent dyes (such as pyrene derivatives) as the core of the bubble structure. When UV light illuminates the organic glass, these fluorescent beads emit visible light at specific wavelengths, causing the bubbles to glow in various colors and providing excellent decorative and artistic effects that meet diverse aesthetic requirements

Inventive Principle:
Principle #32Color changes

Solution Approach 2:

The invention creates a composite bubble structure consisting of fluorescent polymethyl methacrylate beads embedded in a methyl methacrylate polymer matrix. This composite design combines the structural integrity of the polymer with the optical properties of fluorescent materials, achieving both functional and aesthetic requirements simultaneously

Inventive Principle:
Principle #40Composite materials

3Reliability

If bubbles are added to organic glass to improve crack resistance, then the comprehensive performance is improved, but surface defects and poor aesthetics occur

Engineering Contradiction:
Improvecrack resistanceVSAvoidsurface quality
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The invention performs preliminary action by pre-dispersing the fluorescent polymethyl methacrylate beads uniformly throughout the methyl methacrylate prepolymer mixture before casting. This pre-positioning ensures that bubbles form at predetermined locations away from the surface during subsequent UV curing, preventing surface defects while maintaining the crack-resistant micro-foam structure

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The fluorescent polymethyl methacrylate beads act as flexible templates that control bubble formation. During UV photopolymerization, the monomer expands around these beads forming a polymer shell, creating uniform spherical bubbles with controlled size and distribution that prevent surface defects while maintaining structural integrity

Inventive Principle:
Principle #30Flexible shells and thin films

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 solution provides an organic glass with controllable bubble formation, no surface defects, and a fluorescent color under ultraviolet light, enhancing its decorative and artistic effects for applications like aquarium viewing glass and hotel lobby screens.

Implementation Method 1

a fluorescent bubble layer prepared from fluorescent polymethyl methacrylate beads, a first methyl methacrylate prepolymer and a second methyl methacrylate prepolymer

Methodology Applied
Scientific EffectFluorescence: Fluorescence

Implementation Method 2

adhering fluorescent polymethyl methacrylate beads to a surface of the methyl methacrylate layer, then coating a first methyl methacrylate prepolymer onto a surface of the fluorescent polymethyl methacrylate beads

Methodology Applied
Scientific EffectPhotopolymerisation: Photopolymerisation

Implementation Method 3

coating a first methyl methacrylate prepolymer onto a surface of the acrylic plate, and adhering a methyl methacrylate layer to the surface of the acrylic plate

Methodology Applied
Scientific EffectPolymerization: Photopolymerisation

Data Source

PatentUS11370193B2Organic glass, and preparation method and use thereof
Publication Date: 2022.06.28 SHAANXI UNIV OF TECH
  • US11370193B2 patent drawing
  • US11370193B2 patent drawing
  • US11370193B2 patent drawing

AI summary

An organic glass includes an acrylic plate, a methyl methacrylate layer, and a fluorescent bubble layer that are sequentially stacked; and the fluorescent bubble layer is prepared from fluorescent polymethyl methacrylate beads, a first methyl methacrylate prepolymer and a second methyl methacrylate prepolymer. The fluorescent polymethyl methacrylate beads added into the raw material of the organic glass have an expandable characteristic, and can generate bubbles according to a design pattern to achieve the purpose of controllable bubbles, and the added fluorescent polymethyl methacrylate beads show fluorescent green under ultraviolet irradiation, giving bubbles a fluorescent color, and enabling the organic glass to have extremely artistic and decorative effects.