Types of paper defoamer

kerosene defoamer, oil ester defoamer, fatty alcohol defoamer, polyether defoamer, organosilicon defoamer.

Kerosene defoamer can only eliminate the water surface foam, remove the gas in the slurry ability is poor, but also affect the sizing, so that the finished paper with kerosene odor, can only be used for corrugated paper and other low-grade paper.

The oil ester defoamer can also only eliminate the surface foam, the degassing effect is poor, and the same impact on sizing, the use of higher prices; Silicone defoamer can also only eliminate surface foam, and the amount is large, and the economy is not good

Polyether defoamer is easy to be affected by temperature, and the effect of defoaming and degassing is quite different when the temperature of white water is different

The domestic defoamer is mainly based on hydrocarbons, oils and silicone, and the most prominent advantage of fatty alcohol defoamer is that it can quickly and quickly remove the gas in the slurry and eliminate the surface foam, which has the least impact on sizing, and the use cost is low, which is the development direction of paper making defoamer today