Aerogel Insulating Material With Adhesive Coating

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Solution Overview

Problem

Conventional aerogel insulating materials suffer from easy migration of particles, lack of resistance against mechanical washing and drying, and inadequate insulating performance due to low adhesion between aerogel particles and lamination films.

Innovation Solution

An aerogel insulating material structure comprising an insulating layer with aerogel particles, an adhesive-coating layer made of a thermoplastic elastomer with a low glass transition temperature (60-150°C), and a lamination film, where the adhesive-coating layer includes a solvent, thermoplastic elastomer, and additive, enhancing adhesion and preventing particle migration.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional aerogel particles are used in insulating material, then low heat conductivity and low weight characteristics are maintained, but particle migration occurs easily and resistance against mechanical washing and drying is lacking

Engineering Contradiction:

Improvedurability and particle stabilityVSAvoidparticle migration

Core Design Contradiction:

ReliabilityVSObject-generated harmful factors

Solution Approach 1:

An adhesive coating layer comprising thermoplastic elastomer is introduced as an intermediary between the aerogel particles and the lamination film. This adhesive layer prevents direct contact and potential migration of aerogel particles while maintaining the insulating structure's integrity during mechanical washing and drying processes.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The insulating material is structured as a composite system with multiple layers: aerogel particles embedded in a base material, covered by an adhesive coating layer containing thermoplastic elastomer, and finally laminated with a lamination film. This composite structure combines the low heat conductivity of aerogel with the adhesive properties of thermoplastic elastomer and the protective function of the lamination film.

Inventive Principle:

Principle #40Composite materials

2Ease of manufacture

If aerogel particles are applied directly without adhesive coating, then manufacturing simplicity is maintained, but adhesion between aerogel particles and lamination film is insufficient

Engineering Contradiction:

Improvemanufacturing simplicityVSAvoidadhesion strength

Core Design Contradiction:

Ease of manufactureVSStrength

Solution Approach 1:

Inventive Principle:

Principle #24Intermediary (Mediator)

3Temperature

If high glass transition temperature thermoplastic elastomer is used in adhesive-coating layer, then thermal stability is improved, but wettability and adhesion within insulating layer decrease

Engineering Contradiction:

Improvethermal stabilityVSAvoidadhesion strength

Core Design Contradiction:

TemperatureVSStrength

Solution Approach 1:

The glass transition temperature of the thermoplastic elastomer in the adhesive coating layer is specifically controlled within the range of 60-150°C. This parameter optimization balances thermal stability requirements with adequate wettability and adhesion properties, allowing the adhesive to effectively bond aerogel particles to the lamination film while maintaining structural integrity at operating temperatures.

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 solution significantly increases the durability and stability of the aerogel insulating structure, preventing particle migration and maintaining low heat conductivity, making it suitable for applications in clothing, outdoor equipment, and industrial insulation.

Implementation Method 1

use an thermoplastic elastomer having a low glass transition temperature so as to increase wettability within an insulating layer containing aerogel particles and thus increase the adhesion

Methodology Applied

Scientific EffectWettability: Wetting

Implementation Method 2

The heat conductivity of the aerogel is so low that even when placed on a palm of a hand and fire flames of 1,000° C. or above are placed close to the palm, heat is not conducted very well

Methodology Applied

Scientific EffectThermal insulation: Thermal Insulation

Data Source

PatentUS9097377B2Insulating material containing aerogel and method for preparing the same

Publication Date: 2015.08.04 KIM HYO YUL

AI summary

Provided herein is aerogel insulating material and a method of producing aerogel insulating material, the aerogel insulating material including an insulating layer containing aerogel particles, a adhesive-coating layer located at both surfaces of the insulating layer, and a lamination film surrounding the adhesive-coating layer, wherein the adhesive-coating layer has thermoplastic elastomer having a low glass transition temperature. The method of producing aerogel insulating material includes preparing (S10), coating (S20), drying (S30), cutting (S40), and laminating (S50).Therefore, according to the present disclosure, it is possible to embody aerogel insulating material for use in clothing and which may reduce migration of aerogel particles, and which may make the most of the advantage of aerogel, such as its light weight and the excellent insulating effect.