一种羧甲基纤维素降滤失剂及其制备方法
By synergistic grafting of modified betaine monomer and modified naphthalene ring monomer, the high temperature and salt resistance of carboxymethyl cellulose filtration loss reducer is enhanced, solving the problem of performance deterioration of traditional carboxymethyl cellulose under high temperature and high salt environment, and realizing the formation of stable and dense adsorption hydration film.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANDONG JIAOZHOU PETROLEUM ADDITIVES CO LTD
- Filing Date
- 2026-04-02
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional carboxymethyl cellulose filtration loss reducers deteriorate in performance under high temperature and high salt conditions, resulting in the failure of filtration loss reduction effect and the inability to effectively prevent molecular chain deentanglement and cross-linking reactions.
By grafting carboxymethyl cellulose with modified betaine monomer and modified naphthalene ring monomer in a bifunctional synergistic manner, the modified betaine monomer provides electrostatic shielding effect and strong electrostatic adsorption, while the modified naphthalene ring monomer enhances the thermal stability of the molecular chain and the hydrophobic association network.
It improves the high temperature resistance and salt resistance of carboxymethyl cellulose filtration loss reducer, forms a stable and dense adsorption hydration film, and enhances the filtration loss reduction effect in high temperature and high salt environment.
Smart Images
Figure CN121949689B_ABST