Gas Trapping Material for Vacuum Heat Insulation
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Solution Overview
Problem
Current gas trapping materials for vacuum heat insulation equipment face challenges in maintaining high heat insulation properties due to gas release from glass plates and sealing materials, requiring activation at elevated temperatures and specific solvents, which complicates manufacturing and reduces productivity.
Innovation Solution
A gas trapping material composed of porous metal oxide and silver particles with average sizes between 0.5 nm to 100 nm, allowing activation at 300°C or below and maintaining gas trapping characteristics even in an air atmosphere during the sealing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional gas trapping materials are used requiring high temperature activation and specific solvents, then gas trapping ability is achieved, but manufacturing complexity increases and productivity decreases
Solution Approach 1:
The invention changes the activation temperature parameter from conventional high temperatures (requiring complex solvents and multi-step processes) to low temperatures (300°C or below). This is achieved by using a specific composition of metal oxide particles with silver particles, where the metal oxide serves as a support that enables low-temperature activation. The particle size ratio (silver particles 0.5-100 nm, metal oxide particles 1-100 times larger) is optimized to maintain gas trapping ability while enabling low-temperature processing, thereby simplifying manufacturing and improving productivity
Solution Approach 2:
The invention uses a composite material system consisting of metal oxide particles (such as Al2O3, SiO2, TiO2, ZrO2, SnO2, CoO, CuO, Y2O3, ZnO, WO3, MoO2, V2O5, Ta2O5, Nb2O5, MnO2, Fe2O3, NiO, GeO2, TeO2, Bi2O3, La2O3, CeO2) combined with silver particles. This composite structure allows the metal oxide to provide structural support and enable low-temperature activation, while the silver particles provide the gas trapping function. The composite material eliminates the need for complex solvents and high-temperature activation processes used in conventional materials
2Reliability
If conventional gas trapping materials are used requiring high temperature activation, then gas trapping characteristics are achieved, but manufacturing costs increase
Solution Approach 1:
The invention changes the activation temperature parameter from conventional high temperatures to low temperatures (300°C or below). This parameter change directly reduces manufacturing costs by eliminating the need for expensive high-temperature equipment, energy-intensive heating processes, and specialized solvent handling facilities. The low-temperature activation is achieved through the specific metal oxide-silver particle composite structure, maintaining gas trapping characteristics while significantly reducing manufacturing costs
3Strength
If reinforced glass panels are used, then durability and strength are improved, but compatibility with high temperature activation processes is reduced
Solution Approach 1:
The invention changes the activation temperature parameter to low temperatures (300°C or below), which is compatible with reinforced glass panels. Conventional high-temperature activation processes (typically above 400°C) would damage the reinforced glass structure, but the low-temperature activation enabled by the metal oxide-silver composite preserves the glass integrity while achieving effective gas trapping activation. This parameter change expands the versatility of the gas trapping material to work with reinforced glass panels
4Reliability
If conventional manufacturing processes are used with multiple steps, then gas trapping material performance is achieved, but production time increases
Solution Approach 1:
The invention changes the activation temperature to low temperatures (300°C or below), which enables faster drying and activation processes. The low-temperature processing reduces the time required for solvent evaporation, material drying, and activation compared to conventional high-temperature processes. This parameter change, combined with the optimized particle size distribution, maintains gas trapping performance while significantly reducing production time and increasing throughput
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
Enhances production efficiency by maintaining high gas trapping characteristics and reducing manufacturing costs, enabling the use of reinforced glass panels while minimizing CO2 emissions and improving heat insulation performance.
Implementation Method 1
a gas trapping material composed of porous metal oxide and silver particles with average sizes between 0.5 nm to 100 nm, allowing activation at 300°C or below and maintaining gas trapping characteristics even in an air atmosphere during the sealing process
Implementation Method 2
porous metal oxide and silver particles with average sizes between 0.5 nm to 100 nm
Data Source
AI summary
There is provided a gas trapping material and vacuum heat insulation equipment where the gas trapping material can be activated in a sealing step of the vacuum heat insulation equipment, and production efficiency can be enhanced by maintaining a high gas trapping characteristic even when a gas is released in a baking step or in a sealing step under an air atmosphere. The gas trapping material contains porous metal oxide and silver particles having an average particle size of 0.5 nm to 100 nm inclusive.