Thermal Insulation Coating Composition for Durable Metal Adhesion
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Solution Overview
Problem
Conventional thermal insulation materials for metal structures suffer from poor durability, complex construction, environmental pollution due to frequent replacement, and inadequate adhesion, leading to corrosion and safety issues.
Innovation Solution
A thermal insulation coating composition comprising an aqueous resin, hydrophobic aerogel powders, hollow powders, and an associative resin thickener, which forms a high-porosity, crack-resistant coating with high ductility and low thermal conductivity, facilitating easy application and removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional thermal insulation materials (rock wool, aerogel blankets, foamed polyurethane) are used, then thermal insulation performance is achieved, but durability is poor and construction is complicated
Solution Approach 1:
The patent changes the physical state of insulation materials from bulk wrapped forms to sprayable coating form. The coating composition contains aerogel particles suspended in a liquid carrier, allowing application as a thin film that cures to form a durable insulation layer directly on metal surfaces, eliminating complex wrapping construction
Solution Approach 2:
The patent creates a composite coating system combining aerogel particles (for insulation) with a liquid carrier and curing agents. This composite structure provides both thermal insulation performance and durable adhesion to metal surfaces, resolving the contradiction between insulation effectiveness and construction simplicity
2Reliability
If wrapped thermal insulation materials are used on metal surfaces, then insulation is provided, but adhesion is insufficient leading to corrosion
Solution Approach 1:
The patent uses a spray application method to deposit the coating composition onto metal surfaces. The liquid carrier allows the coating to flow and conform to surface irregularities, ensuring complete coverage and strong adhesion that prevents condensation water intrusion and subsequent corrosion
Solution Approach 2:
The coating undergoes a phase change from liquid application state to solid cured film. This transformation creates a permanently bonded insulation layer that maintains strong adhesion under thermal cycling and mechanical stress, preventing the delamination and corrosion issues seen with wrapped materials
3Ease of operation
If spray-type thermal insulation coatings are used, then surface protection is achieved, but the coatings are hard and difficult to handle during maintenance
Solution Approach 1:
The patent formulates the coating with specific resin systems and plasticizers that maintain flexibility after curing. The coating achieves sufficient hardness for protection while retaining elastomeric properties that allow easy removal and replacement during maintenance, unlike rigid conventional spray coatings
4Reliability
If thick coating is applied to achieve better insulation, then insulation performance improves, but sagging occurs
Solution Approach 1:
The coating composition is formulated with optimal viscosity and rheological properties that allow application of thick coats without sagging. The liquid carrier provides sufficient flow for complete coverage while the suspended aerogel particles and thickeners maintain structural integrity during application and curing
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 coating provides effective thermal insulation with high ductility, low heat transfer, and ease of removal, reducing construction complexity and environmental impact while maintaining adhesion to metal surfaces.
Implementation Method 1
hydrophobic aerogel powders... By utilizing the hollow powders, the water-based resin infiltration into the micropores of the hydrophobic aerogel powder is reduced
Implementation Method 2
the composition can produce a high-porosity thermal insulating that is easy to apply... low thermal conductivity and insulation performance
Data Source
AI summary
A thermal insulation coating composition and a thermal insulation coating formed therefrom are provided. The thermal insulation coating composition includes an aqueous resin, a hydrophobic aerogel powder, a hollow powder, and an associative resin thickener. Based on 100 parts by weight of a total amount of the thermal insulation coating composition, a content of the aqueous resin is 70 parts by weight to 85 parts by weight, a content of the hydrophobic aerogel powder is 2 parts by weight to 15 parts by weight, and a content of the hollow powder is 10 parts by weight to 25 parts by weight. Based on 100 parts by weight of an amount of the aqueous resin, a content of the associative resin thickener is 0.1 part by weight to 1 part by weight.