What is melamine aerogel sheet?
Melamine Aerogel Sheet is a new high-performance material made from melamine foam and aerogel with extremely low thermal conductivity, high flame retardancy, light weight and good sound insulation properties. This material excels in thermal, acoustic and flame-retardant insulation and is widely used in a variety of applications.
Process of making melamine aerogel sheets
The process of making melamine aerogel sheet is relatively complex, mainly including the following steps:
1) Preparation of precursor solution:
React melamine and formaldehyde under acidic or alkaline conditions to form melamine resin.
The aerogel precursor solution (e.g., silica sol) is mixed with the melamine resin to form a homogeneous mixed solution.
2) Molding and Gelation:
The mixed solution is poured into the mound to form a wet gel through a sol-gel process.
Temperature and humidity are controlled to ensure that the gelation process proceeds uniformly.
3) Solvent replacement:
Replace the water in the wet gel with an organic solvent with low surface tension (e.g., ethanol or acetone) to prevent cracking during aerogel drying.
4) Drying:
Adopt supercritical drying or atmospheric pressure drying technology to remove the solvent in the wet gel to get dry aerogel.
Control the temperature and pressure during the drying process to ensure that the structure of the aerogel is not damaged.
5) Post-treatment and sheet preparation:
Cut the dried aerogel into sheets of desired size.
Apply surface treatment or compounding treatment to the aerogel sheet to enhance its mechanical properties and durability.
Application areas of melamine aerogel sheets
1) Building and Construction
Used as a heat-insulating layer for walls, roofs and floors, providing excellent heat insulation.
As a fireproof insulation layer, it improves the fire safety of buildings.
2) Industrial equipment
Used as thermal insulation for high-temperature equipment to reduce energy loss and improve work efficiency.
As an insulating layer for industrial pipelines, it prevents heat loss and maintains fluid temperature.
3) Transport
Used as thermal and acoustic insulation for automobile hoods, door linings, floors and roofs to enhance ride comfort.
Used as acoustic insulation in train carriages and aircraft cabins to reduce noise and improve passenger comfort.
4) Aerospace and Aviation
Thermal insulation for spacecraft to protect them from extreme temperatures.
Thermal insulation for the interior of aerospace equipment to ensure safe operation at high temperatures.
5) Consumer Electronics
Battery insulation used in electric vehicles and consumer electronics to prevent overheating of batteries.
Cooling systems for high-performance computers and other electronic equipment to ensure stable operation at high temperatures.
6) Oil & Gas
Insulation for deep-sea oil and gas pipelines to prevent heat loss and reduce hydrate formation.
Used as an insulating layer for liquefied natural gas (LNG) storage tanks to maintain low temperatures.
Precautions for use
1) Temperature control: When used in high temperature environments, ensure that the working temperature of the material is within its tolerance range.
2) Waterproof treatment: Although the aerogel itself has certain waterproof performance; it is better to carry out waterproof treatment when used in a humid environment.
3) Mechanical protection: Aerogel material is relatively fragile, mechanical damage should be avoided when using it, and if necessary, compound treatment can be carried out to enhance its mechanical properties.
4) Safety protection: Avoid inhaling the aerogel dust during processing and handling, and it is recommended to use protective equipment.
Application of melamine aerogel sheet in new energy battery
In new energy batteries (such as electric car batteries), melamine aerogel sheet is mainly used as heat insulation and fireproof material, the specific applications are as follows:
1) Battery heat insulation: Melamine aerogel sheet is placed around the battery pack to prevent the battery from overheating in high temperature environment and keep the working temperature of the battery within the safe range.
2) Battery Module Thermal Insulation: Used as thermal insulation between battery modules to prevent individual batteries from affecting neighboring batteries in case of thermal runaway and to improve the safety of the battery pack.
3) Fire barrier: used as a fire barrier material to prevent the flame from spreading when the battery catches fire, improving the overall safety.
4) Cooling System: Used in combination with the cooling system to improve cooling efficiency and ensure temperature management of the battery during high load operation.
Through the rational use of melamine aerogel sheet, the safety and performance of new energy batteries can be significantly improved, and the service life of the batteries can be extended.
And the melamine foam aerogel sheet or coil developed by SINOYQX with its partners is made by innovative hot-pressing compounding process, which can be molded into coils and sheets, and is widely used in new energy battery insulation system and pipeline thermal insulation and heat preservation system.
For more information on where to buy melamine foam aerogel sheets or coils, please contact us at [email protected] or +86-28-8411-1861.
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