In the field of modern construction and industry, energy conservation and emission reduction have become a topic that cannot be ignored. As a highly efficient thermal insulation material, ceramic fiber insulation board has been widely used around the world due to its excellent performance. This article will discuss in detail the characteristics, applications, manufacturing process and development prospects of ceramic fiber insulation board.

1. Overview

Ceramic fiber insulation board is a board-shaped insulation material made of high-purity natural minerals (such as kaolin, silica, etc.) melted at high temperature and made into fibers through blowing or spinning processes, and then specially treated. Its main components include aluminum oxide, silicon oxide, calcium oxide, etc., with extremely low thermal conductivity and excellent high temperature resistance.

2. Features

• Efficient thermal insulation: The thermal conductivity of ceramic fiber insulation boards is extremely low (about 0.035-0.045 W/m·K), which can effectively reduce heat transfer and significantly reduce energy consumption.


• High temperature resistance: It can withstand high temperatures above 1000°C and is suitable for various high temperature environments.


• Lightweight: Its density is usually between 96-128 kg/m³, which is much lighter than traditional insulation materials, reducing the load on buildings and equipment.


• Chemical stability: It is corrosion-resistant to most chemicals and is suitable for corrosive environments such as chemical industry and metallurgy.


• Flexibility: Good flexibility, easy to cut and install.

3. Application areas

Ceramic fiber insulation board is widely used:

• Building insulation: used for exterior wall insulation, roof insulation, floor insulation, etc. to improve building energy efficiency.


• Industrial furnaces: used as furnace lining to reduce heat loss and improve energy efficiency.


• Power equipment: used for thermal insulation in boilers, steam turbines and other equipment.


• Automotive industry: used for thermal insulation of high-temperature components, such as exhaust systems.


• Aerospace: used in the thermal insulation layer of rocket engines and spacecraft.

4. Manufacturing process

The process of manufacturing ceramic fiber insulation board includes:

1. Raw material preparation: Select high-purity mineral raw materials.


2. Melting: Melt the raw materials at high temperature (about 1700℃).


3. Fiber formation: The melt is formed into fibers by blowing or spinning technology.


4. Solidification: The fibers are solidified and formed by special processes.


5. Processing: The fibers are pressed into sheets and surface treated.

5. Development and prospects

With the growth of global energy demand and the enhancement of environmental protection awareness, the market demand for ceramic fiber insulation boards continues to grow. Future development directions include:

• Performance optimization: further reduce thermal conductivity and improve high temperature resistance.


• Environmentally friendly: develop more environmentally friendly production processes and material formulas to reduce environmental impact.


• Intelligence: combine sensor technology to achieve intelligent monitoring and management of insulation systems.


• Multifunctional: develop insulation boards with multiple functions such as fireproof, waterproof, and antibacterial.