The plastic products we use at ordinary times rarely see water lines or blisters. This is because plastic defoamers play a role in the plastic production process. If plastics are not added to the plastic defoamer during production, the finished plastic product will also have a lot of water marks.

Plastics defoamers are not only used in the plastics industry alone. After adding plastic defoamers to concrete, they can accelerate solidification and improve the workability of concrete. Plastics defoamers are mainly used in some applications that need to be cured in a short period of time. The cost of the project is also very high, so people generally do not use it.

Plastic defoamers, also known as antifoams, are much better than general antifoams. After adding plastic defoamers to concrete, they have faster defoaming, longer foam suppression times, and a wider range of applicable media. Even harsh media environments such as high temperatures, strong acids, and strong bases. It is widely used in the removal of harmful foams from the production processes of latex, textile sizing, food fermentation, biomedicine, coatings, petrochemicals, papermaking, and industrial cleaning. Most of the defoamers currently used in concrete mortars are compounds based on modified polyethers and modified polysiloxanes.

However, the improper use of plastic defoamers will result in a decrease in concrete air content and water reduction rate. In severe cases, bleeding and flooding will occur, which will deteriorate the workability of concrete. Therefore, there is an optimum range of defoamers. Therefore, it must also be noted that defoamers used in the production of concrete with polycarboxylate series water reducers will reduce the gas content of polycarboxylate water reducers, and the concrete slurry will be more viscous. It is recommended that they be incorporated after the defoamer is added. The air-entraining agent eliminates the inhomogeneous large bubbles in the polycarboxylic acid and introduces uniform small bubbles, which can increase the ease of the concrete. Defoamers have a high dispersibility with water and admixtures, and they tend to separate after being left for a long time. It is recommended that stirring be continued continuously during this period. Defoamers may have a reduced performance due to alkalinity. Avoid use at pH 10 or above.