| abstract |
The invention aims to provide a preparation method of a stable natural oil defoaming agent. Firstly, the invention adopts the vegetable oil and the derivatives thereof as the carrier, thereby effectively reducing the VOC content of the final defoaming agent; on one hand, in order to ensure the defoaming performance of the product, white carbon black and fatty acid metal soap are adopted as main defoaming substances of the defoaming agent; on the other hand, the viscosity reducer is introduced, so that the filler particles are not easy to agglomerate and delaminate, and the stability of the product is improved. |