Cationic water-soluble high-molecular polymer
A water-soluble polymer and cationic technology, applied in the direction of flocculation/sedimentation water/sewage treatment, etc., can solve the problems of low cost, high bridging ability, high flocculation, etc., and achieve the effect of fast flocculation effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0026] The raw materials for the preparation of the cationic water-soluble acrylic resin include monomers, initiators and solvents. The monomers include acrylic acid, butyl acrylate, β-hydroxyethyl methacrylate, methyl methacrylate and methyl methacrylate. Acryloyloxyethyl trimethyl ammonium chloride.
[0027] Preferably, the weight ratio of the acrylic acid, butyl acrylate, β-hydroxyethyl methacrylate and methyl methacrylate is 1-10:5-20:1-10:1-10.
[0028] Preferably, the amount of methacryloxyethyl trimethylammonium chloride accounts for 10-20% of the total monomer mass.
[0029] Preferably, the volume ratio of the cationic water-soluble acrylic resin and hexamethoxymethylmelamine is 80-100:10-30.
[0030] Preferably, the volume ratio of the cationic water-soluble acrylic resin and hexamethoxymethylmelamine is 100:10-30.
[0031] Preferably, the raw materials for the preparation of hexamethoxymethyl melamine include hexamethylol melamine, formaldehyde, melamine and methanol.
[0032]...
Embodiment 1
[0054] Synthesis of cationic water-soluble acrylic resin: Mix 5.5 mL of methyl methacrylate, 3.5 mL of β-hydroxyethyl methacrylate, 2 mL of acrylic acid, 16 mL of butyl acrylate, and the initiator benzoyl peroxide (BPO). mixture. In a four-neck flask equipped with a stirrer, a thermometer, a constant-pressure low-liquid funnel and a condenser, add 20ml of n-butanol solution, turn on the stirring, heat up the constant temperature water bath to 90°C, add 20% of the mixed solution dropwise, and keep it warm for 30 minutes After that, add the remaining 80% of the mixed solution dropwise at a uniform rate. The dropwise addition is completed in 2.5-4 hours. After keeping the temperature for 2 hours, add a certain amount of benzoyl peroxide (BPO) and 5ml n-butanol. The amount of BPO accounts for the single 1.25% of total body mass. Finally, the reaction is kept for 2 hours, and then methacryloxyethyl trimethylammonium chloride is added dropwise, the amount of which is 18% of the tota...
Embodiment 2
[0058] Synthesis of cationic water-soluble acrylic resin: Mix 5.5 mL of methyl methacrylate, 4.5 mL of β-hydroxyethyl methacrylate, 5 mL of acrylic acid, 12 mL of butyl acrylate, and the initiator benzoyl peroxide (BPO) to obtain mixture. In a four-necked flask equipped with a stirrer, a thermometer, a constant-pressure low-liquid funnel and a condenser, add 45ml of n-butanol solution, turn on the stirring, heat up the constant temperature water bath to 90°C, add 10% of the mixed solution first, and keep it warm for 30 minutes After that, add the remaining 90% of the mixed solution dropwise at a constant speed. The dropwise addition is completed in 3 hours. After holding for 2 hours, add a certain amount of benzoyl peroxide (BPO) and 14ml n-butanol. The amount of BPO accounts for the total monomer 1.25% of the quality. Finally, the reaction is kept for 2 hours, and then methacryloxyethyltrimethylammonium chloride is added dropwise, the amount of which is 15% of the total mass ...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More