High-efficiency papermaking white water defoaming agent and preparation method thereof
A highly efficient papermaking white water defoamer was prepared by combining modified polyether with silica sol, surfactants and functional agents, which solved the problem of poor defoaming and foam suppression ability at high temperatures and achieved a stable defoaming effect at high temperatures.
CN122298074APending Publication Date: 2026-06-30JIAXING WOTETAIKE ENVIRONMENTAL PROTECTION TECH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- JIAXING WOTETAIKE ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2026-04-20
- Publication Date
- 2026-06-30
Smart Images
Figure CN122298074A_ABST
Abstract
This invention discloses a high-efficiency defoamer for papermaking white water and its preparation method, belonging to the technical field of defoamers. Specifically, it involves mixing allyl alcohol polyoxyethylene ether and polyoxypropylene ether, and then preparing a modified polyether in the presence of propylene glycol, sodium hydroxide, and dimethyl carbonate. The modified polyether is then mixed with silica sol, surfactant, functional agent, and thickener in water to prepare the defoamer. The defoamer prepared by this invention can be used in papermaking, exhibiting good defoaming effect and good stability at high temperatures. Therefore, this invention provides a high-efficiency defoamer for papermaking white water with good defoaming effect and good stability at high temperatures, and its preparation method.
Need to check novelty before this filing date? Find Prior Art