Why is the concentration of flame retardant too high?

2021-02-07 15:58:20

Is it feasible to test the flame retardancy of flame retardant with lighter?

Generally, the common convenient fast key test method for flame retardancy of flame retardants is mainly to use lighters. So is it feasible to test the performance of samples with lighter?

It is easy to judge the halogen system by directly using lighter to test the flame retardancy of the products, because the mechanism of the system determines the compactness of the products, which has little effect on the flame retardancy. The same is true for hydroxide systems.

However, for the nitrogen phosphorus system, due to the carbon forming mechanism, the density of the product has a greater impact on the flame retardant. For example, the density of the extruded strip is limited, and there may be some pores inside, which has side effects on the carbon formation. The density of the product after injection molding is greatly enhanced, and the carbon formation effect is more rapid. So when using lighter to test flame retardant, we must distinguish the object, so that the test results will be more accurate, and it is easier to identify the flame retardant grade of flame retardant.

Why is the concentration of flame retardant too high?

There will be many problems in the use of flame retardant, but only by understanding the causes and solutions can the problems be solved correctly. Some customers will think that the higher the concentration of flame retardant, the better the flame retardant effect. Therefore, excessive concentration of flame retardant will lead to a certain degree of change of flame retardant. What should we do if the concentration of flame retardant is too high?

1. When flame retardant fabric (fabric, wood) is treated with excessive concentration of flame retardant, appropriate amount of water can be added to reduce the concentration.

2. Shorten the treatment time of flame retardant. For example, shorten the time of soaking fabric and wood with flame retardant.

3. Stop the treatment of flame retardant immediately and continue to treat with low concentration flame retardant.

The above is why the concentration of flame retardant is too high in the process of use.