Aerogel Laminate With Reflective Support for Thin Thermal Insulation

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Solution Overview

Problem

Thermal insulation materials using resin foamed bodies require thick layers for effective insulation, making it difficult to reduce thickness while maintaining performance, especially in cryogenic applications where enhanced insulation is needed.

Innovation Solution

An aerogel laminate is developed by laminating an aerogel layer with a heat ray reflective or absorbing support, allowing for reduced thickness while maintaining high thermal insulation performance. The aerogel layer is derived from polysiloxane or silica particles, and the support can be made of materials like aluminum, silver, or carbon graphite, enhancing thermal insulation properties.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If a resin foamed body is used as a thermal insulation material, then thermal insulation performance is improved, but the thickness cannot be reduced

Engineering Contradiction:
Improvethermal insulation performanceVSAvoidthickness
Core Design Contradiction:
Loss of energyVSLength of stationary object

Solution Approach 1:

The patent combines aerogel particles (providing thermal insulation) with a binder resin (providing structural integrity) to create a composite thermal insulation material. This composite structure allows the material to achieve superior insulation performance while reducing thickness, as aerogel has extremely low thermal conductivity. The binder resin holds the aerogel particles together in a matrix that maintains the material's shape and mechanical properties.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The patent utilizes aerogel particles which are highly porous materials with extremely low density and thermal conductivity. The porous structure of aerogel provides excellent thermal insulation properties, allowing the thermal insulation layer to be made thinner while maintaining or improving insulation performance compared to conventional foamed materials.

Inventive Principle:
Principle #31Porous materials

2Volume of stationary object

If the thickness of thermal insulation layer is reduced, then space is saved, but thermal insulation performance deteriorates

Engineering Contradiction:
ImprovespaceVSAvoidthermal insulation performance
Core Design Contradiction:
Volume of stationary objectVSLoss of energy

Solution Approach 1:

By creating a composite material with aerogel particles dispersed in a binder resin, the patent achieves a material that provides high insulation performance in a thin layer. The aerogel particles contribute exceptional insulation properties, while the binder resin provides structural support, allowing the insulation layer to be thin yet effective.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The patent changes the physical and chemical parameters of the thermal insulation material by using aerogel particles with specific properties (extremely low density, high porosity, low thermal conductivity) combined with a binder resin. This parameter change enables the material to achieve high insulation performance at reduced thickness, overcoming the trade-off between thickness and insulation effectiveness.

Inventive Principle:
Principle #35Parameter changes

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 aerogel laminate achieves superior thermal insulation with reduced thickness, enabling high handling properties and improved thermal performance in cryogenic and superconductive applications.

Implementation Method 1

an aerogel laminate having at least one structure prepared by laminating an aerogel layer and a specific support in the thickness direction has high thermal insulation performance

Methodology Applied
Scientific EffectThermal insulation: Thermal Insulation

Implementation Method 2

a support having a heat ray reflective function or a heat ray absorbing function

Methodology Applied
Scientific EffectHeat ray reflection: Reflection

Implementation Method 3

a support having a heat ray reflective function or a heat ray absorbing function

Methodology Applied
Scientific EffectHeat ray absorption: Absorption (EM radiation)

Data Source

PatentUS11333288B2Aerogel laminate and thermal insulation material
Publication Date: 2022.05.17 RESONAC CORP
  • US11333288B2 patent drawing
  • US11333288B2 patent drawing
  • US11333288B2 patent drawing

AI summary

A production method for an aerogel laminate includes a step of preparing a sol of producing a sol for forming an aerogel, an applying step of applying the sol obtained in the step of preparing a sol to a support having a heat ray reflective function or a heat ray absorbing function, and drying the sol to form an aerogel layer, an aging step of aging the aerogel layer obtained in the applying step, a washing step of washing the aged aerogel layer and performing solvent exchange, and a drying step of drying the aerogel layer washed in the washing step.