Insulation Coating Rheology via Silica Granule Sizing
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Solution Overview
Problem
Existing thermal insulation coatings face issues with storage stability and surface smoothness, leading to poor flow properties and aesthetics, which affect both functional and decorative aspects.
Innovation Solution
A curable composition comprising spray-dried pyrogenic silicon dioxide granules and a second component such as microsilica or silica aerogels, with specific physical-chemical characteristics, is used to create coatings with improved rheology and surface appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If granular silica-based materials are used for thermal insulation coatings, then thermal insulation properties are improved, but viscosity increases during storage leading to poor flow properties
Solution Approach 1:
The patent changes the particle size parameter of the granular silica-based material to a specific range (0.1-1.0 mm, preferably 0.2-0.5 mm) and controls the particle size distribution to resolve the contradiction between thermal insulation performance and flow properties during storage and application
2Loss of energy
If granular silica-based materials are used for thermal insulation coatings, then thermal insulation properties are improved, but surface smoothness deteriorates
Solution Approach 1:
The patent optimizes the particle size parameter (0.1-1.0 mm) and particle size distribution of the granular silica-based material to achieve a balance between thermal insulation performance and surface smoothness, preventing excessive surface roughness while maintaining insulation effectiveness
3Loss of energy
If irregular shaped granules are used, then thermal insulation properties are improved, but coating uniformity deteriorates
Solution Approach 1:
The patent controls the particle size parameter and size distribution of the granular silica-based material to ensure uniform coating application and consistent insulation performance across the coated surface
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 composition exhibits enhanced storage stability and a smooth, uniform surface, achieving better thermal insulation and maintaining application properties over time.
Implementation Method 1
Porous thermal insulation materials such as aerogels or fumed or precipitated silicas exhibit low thermal conductivity
Implementation Method 2
A heat-reflecting coating is typically used to prevent heat generated by radiation
Implementation Method 3
curable composition for producing coatings for thermal, electrical and/or acoustic insulation
Implementation Method 4
curable composition for producing coatings for thermal, electrical and/or acoustic insulation
Data Source
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AI summary
The invention relates to a curable composition for the production of coatings for thermal, electrical and/or acoustic insulation, comprising at least one aqueous binder, wherein it has a first component based on spray-dried pyrogenic silicon dioxide granules and at least one second component selected from the group consisting of silicon dioxides, preferably microsilica, granules based on pyrogenic silicon dioxide, silica aerogels, silicate glass (foam glass / expanded glass), hollow silicon dioxide particles (hollow glass spheres), or granules selected from the group consisting of perlites, preferably expanded perlites, from the group consisting of vermiculites and from the group consisting of polymers, preferably expanded polystyrene granules, as well as mixtures thereof.