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How to improve the flame retardancy of aluminum hydroxide

Jan 30,2024

Improve the dispersion and addition of aluminum hydroxide in resin

Any flame retardant in the process of using, if there is agglomeration dispersion is not good, will seriously affect its flame retardant effect. Therefore, to improve the flame retardancy of aluminum hydroxide, it is necessary to make its dispersion in the resin more uniform. Choosing suitable modifier for surface modification of aluminum hydroxide improves its compatibility with polymer, which in turn improves the dispersibility of aluminum hydroxide and increases the additive amount to achieve the purpose of improving the flame retardancy of aluminum hydroxide.

Ultra-fine

The particle size of aluminum hydroxide is also an important factor affecting its flame retardancy, the finer the particle size, the better the flame retardancy, and vice versa, the flame retardancy is poor. Therefore, superfine treatment of aluminum hydroxide can greatly improve its flame retardant properties. However, the finer the aluminum hydroxide, the higher its viscosity, the more difficult to process when mixed with polymers, so it is necessary to carry out surface modification. Ultra-fine aluminum hydroxide is generally surface modified for better application in polymers.

Compounding and synergizing

In many applications, there are higher requirements for flame retardancy, and the addition of aluminum hydroxide alone can no longer meet the flame retardancy requirements. At this point, you can consider the method of compounding to improve the flame retardancy of aluminum hydroxide, add a very small amount of flame retardant synergist, you can achieve this goal. For example, adding zinc borate, red phosphorus and so on.

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Frequently asked 1uestions about aluminum hydroxide flame retardant

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Jan 30,2024