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Quadripolymer and preparation method

A technology of polymers and monomers, applied in the field of quaternary polymers and preparations, can solve problems such as reducing strength, affecting polycarboxylate water reducing agent water reduction, slump retention performance, and increase in water-cement ratio, so as to overcome compatibility sexual effect

Inactive Publication Date: 2016-04-20
SHANGHAI SUNRISE POLYMER MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Simply adding cellulose-based viscosifiers will easily increase the water-cement ratio in the mortar and reduce the strength, and it is not suitable for polycarboxylate superplasticizers. The main performance is that the two are difficult to dissolve. Some cellulose ethers also seriously affect the water reduction and slump retention performance of polycarboxylate superplasticizers

Method used

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  • Quadripolymer and preparation method
  • Quadripolymer and preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0026] Add 30% sodium vinylbenzene sulfonate, 30% N,N-dimethylacrylamide, 30% acrylic acid, and 10% methacryloyloxyethyltrimethylammonium chloride to the reaction kettle in sequence, add water and stir Evenly, add 30% sodium hydroxide solution into the reaction kettle, adjust the pH of the system to 7, heat and stir to 45°C, add 0.16g ammonium persulfate, and keep it warm for 1.5 hours to obtain a colorless transparent or light yellow viscous liquid. Dilute with water and continue to stir for 1 hour, then discharge.

Embodiment 2

[0028] Add 60% sodium propylene sulfonate, 20% N,N-dimethylacrylamide, 10% methacrylic acid, and 10% dimethyl diallyl ammonium chloride to the reaction kettle in sequence, add water and stir evenly, and use Add 30% sodium hydroxide solution into the reaction kettle, adjust the pH of the system to 8, heat and stir to 45°C, add 0.20g ammonium persulfate, and keep it warm for 2 hours to obtain a colorless transparent or light yellow viscous liquid, dilute with water and continue Stir for 3 hours and discharge.

Embodiment 3

[0030] Add 40% 2-acryloyloxy-2-methylpropanesulfonic acid, 40% N-vinylpyrrolidone, 10% itaconic acid, and 10% dimethyl diallyl ammonium chloride to the In the reaction kettle, add water and stir evenly, add 30% sodium hydroxide solution into the reaction kettle, adjust the pH of the system to 9, heat and stir to 45°C, add 0.40g ammonium persulfate, and keep warm for 1.5 hours to obtain a colorless and transparent or Pale yellow viscous liquid, dilute with water and continue to stir for 1 hour, then discharge.

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Abstract

The invention discloses a quadripolymer and a preparation method. The quadripolymer is prepared by polymerizing a monomer A, a monomer B, a monomer C and a monomer D, wherein the monomer A is sodium vinylbenzenesulfonate, sodium allylsulfonate, 3-allyloxy-2-hydroxyl-1-propylsulfonate, 2-acryloyloxy-2-methylpropane sulfonic acid, 2-acrylamide-2-methylallyl sulfonic acid or sodium methylallyl sulfonate; the monomer B is N,N-dimethacrylamide, N,N-diethyl acrylamide, acrylamide or N-vinyl pyrrolidone; the monomer C is acrylic acid, methacrylic acid or itaconic acid; and the monomer D is methacrylatoethyl trimethyl ammonium chloride, dimethyldiallyl ammonium chloride or acryloyloxyethyltrimethyl ammonium chloride. The quadripolymer disclosed by the invention is a water-soluble polymer with a good development prospect; and due to the properties such as delayed coagulation, thickening and surface activity, the quadripolymer can be applied to chemical fiber, plastics, printing and dyeing, coating, surfactants, antistatic agents, ceramics, washing assistants, petroleum assistants, concrete and mortar assistants.

Description

technical field [0001] The invention relates to a polymer and a preparation method, in particular to a tetrapolymer and a preparation method. Background technique [0002] In the field of mortar application, cellulose materials are used as thickeners in the construction market, such as methyl cellulose ether, hydroxyethyl cellulose ether, etc. Simply adding cellulose-based viscosifiers will easily increase the water-cement ratio in the mortar and reduce the strength, and it is not suitable for polycarboxylate superplasticizers. The main performance is that the two are difficult to dissolve. Some cellulose ethers also seriously affect the water reduction and slump retention properties of polycarboxylate superplasticizers. Contents of the invention [0003] The purpose of the present invention is to provide a kind of quaternary polymer and its preparation method aiming at the existing technical problems of thickeners for construction. This quaternary polymer can not only im...

Claims

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Application Information

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IPC IPC(8): C08F220/06C08F212/14C08F220/54C08F220/34C08F228/02C08F226/02C08F220/38C08F226/10C08F222/02C04B24/16C04B103/44
CPCC04B24/163C04B2103/44C08F220/06C08F220/38C08F220/382C08F228/02C08F212/14C08F220/54C08F220/34C08F226/02C08F226/10C08F222/02
Inventor 傅乐峰徐健冯中军
Owner SHANGHAI SUNRISE POLYMER MATERIAL CO LTD
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