Advantages of defoaming agents for pulp and paper making
Common pulp and paper defoamers include oleic acid, hexanediol, etc. The defoaming rate is high, close to %. Many problems encountered in the production, construction and application of water-based coatings are solved by defoamers, so water-based defoamers are a vital part of the coating industry. What are the advantages of pulp and paper defoamers? Since thickeners are all hydrophilic polymer compounds, they can be hydrated to form a homogeneous liquid with high viscosity, so they are also called hydrosols, hydrophilic colloids or edible glues. The spectacular foam formed by hitting the reefs on the coast; there are also common soap and washing powder water foams when people wash clothes;
Pulp and paper defoamers can quickly eliminate wheat straw, rice straw, pine wood, waste paper, reeds, bamboo and other surfactants in the papermaking industry and the foam generated. It has obvious effects in pulping and washing, and the foam suppression is long-lasting. It is non-toxic and odorless, and there is no later pollution. It can effectively control pulp overflow and improve papermaking quality.
Method of using pulp and paper defoamer:
① It can be diluted 1-3 times with clean water and added dropwise to the foaming parts such as pulping tank, high-level box, and net trough;
② The usage amount is 0.01%-0.2% of the foaming system;
③ After being diluted, this product must be used as soon as possible within a short time.
