Organosilicon has many excellent properties such as:

    (1) chemical inert, will not react with other foaming substances;

    Physiological inert, non-toxic, pollution-free, harmless to the environment;

    (3) Excellent defoaming performance, less dosage;

    ④ Wide temperature range, heat resistance, cold resistance, weather resistance and aging resistance;

    ⑤ has excellent softness and lubrication performance, is conducive to improving the quality of coated paper.However, the price of silicone products is relatively high, so that some manufacturers can not accept, leading to the current silicone defoaming agent has not been widely used.In fact, from the perspective of dosage, because of the small amount of silicone, usually only need to add the mass fraction of the system 1 ~ 75×10-6 can achieve good defoaming effect, if combined with other defoaming agent can further reduce the cost.Taking all things into consideration, the cost of using silicone as defoaming agent will not increase compared with other defoaming agents.With the continuous improvement of silicone synthesis technology and the continuous reduction of raw materials, the problem of high price of silicone can certainly be solved, so containing silicone defoaming agent will be the hot spot of papermaking defoaming agent market.