Ceramic fiberboard is applicable to the high-temperature industry with specified commodity stiffness and compressive strength, but sometimes some yellowing occurs, which in fact does a certain harm to everyone's safe use. It not only does harm to the beauty, but also does harm to the actual effect of its application to a certain extent. So, what is the reason for the yellowing of ceramic fiberboard? The reason for the key explanation below

1. The yellowing of ceramic fiberboard is mainly caused by the coupling agent and tackifier in the neutralized adhesive. The reason is that these two raw materials have "amino groups", which is very easy to cause yellowing, so many imported structural adhesives also have yellowing.

2. If the external neutral all transparent adhesive is applied together with the acid-base laminated glass adhesive, it is likely to cause the neutral adhesive to turn yellow after drying.

3. This may be caused by the long storage time of super glue or the reflection between super glue and substrate.

The raw material of ceramic fiberboard is blowing chemical fiber (short, fine, easy to break and easy to mix), adding a certain proportion of adhesive and filler grade additives, and fully dispersing into slurry in the slurry mixing tank after slurry grinding. Pump into the forming tank and mix with air compression. Put the abrasives into the forming tank and suck the chemical fiber slurry on the die shell by using the basic principle of vacuum packaging.

The ceramic fiber board can accurately control the suction time, dry the wet textile materials by vacuum pump, take out the mold, put them on the drag tray and send them to the dryer for 10 ~ 24 hours. After the plywood is dry, the specifications are accurately controlled by special CNC grinding machine and edge cutting machine.

In addition to the excellent characteristics corresponding to loose ceramic fiber cotton, ceramic fiber board also has hard material, excellent ductility, compressive strength and good weathering resistance. It is an ideal energy-saving thermal insulation material for thermal insulation, industrial kilns, pipelines and other facilities. It does not swell in case of heat, has light weight and convenient engineering construction. It can be cut and bent by laser at will.

Ceramic fiber board has high tensile strength and long service life; Low specific heat and low heat transfer coefficient; Non ductile raw materials with good ductility; Accurate specification and good flatness; Easy laser cutting and installation, convenient engineering construction; Excellent weathering resistance; Continuous production, chemical fibers are distributed evenly and have stable characteristics.