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Water-soluble solid polyacrylamide and application thereof

A polyacrylamide, water-soluble technology, applied in the field of water-soluble polymer materials, can solve the problems of poor storage stability, low molecular weight, high content of effective substances, etc.

Inactive Publication Date: 2018-08-31
JIANGSU FEYMER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a new type of water-soluble solid polyacrylamide product to solve the problems of low molecular weight, low content of effective substances, poor storage stability, and short shelf life in aqueous solution-type amphoteric polyacrylamide products, and to obtain higher molecular weight The product has high content of effective substances, low transportation cost, not easy to hydrolyze, not easy to mold

Method used

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  • Water-soluble solid polyacrylamide and application thereof
  • Water-soluble solid polyacrylamide and application thereof
  • Water-soluble solid polyacrylamide and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0112] (1) Uniformly mixing chain transfer agent, pH regulator, chelating agent, water and / or organic solvent and surfactant to form a mixed solution;

[0113] (2) Place four types of monomers, nonionic monomer A, nonionic monomer B, anionic monomer and cationic monomer, in the mixed liquid, and deoxygenate it by an inert gas;

[0114] (3) Apply triggering conditions to carry out chain polymerization, and obtain water-soluble polyacrylamide polymer in aqueous solution system or suspension system. The obtained polymer is liquid, or colloidal, or granular, and the polymer is dried, sieved Graded processing means become granular and / or powdery water-soluble solid polyacrylamide products.

[0115] Specifically: by weight, deionized water, chain transfer agent, chelating agent, pH regulator, non-ionic monomer A, non-ionic monomer B, cationic monomer, and anionic monomer are mixed evenly, and nitrogen gas is used to remove oxygen for 30 After the reaction, the temperature of the co...

Embodiment 21

[0156] Use 350 parts of cyclohexane and 20 parts of Span-80 as the primer, heat to dissolve, mix well, condense and reflux, pass inert gas to remove oxygen while stirring, and raise the temperature to 70°C. Then 98 parts of acrylamide, 30 parts of dimethylaminoethyl methacrylate, 14 parts of methacryloyloxyethyltrimethylammonium chloride, 6 parts of dimethyl diallyl ammonium chloride, 11 parts of acid, 1 part of isopropanol, 0.03 parts of EDTA-2Na, 2.5 parts of dilute hydrochloric acid, and 153 parts of deionized water are fully dissolved as dropping materials, and 0.2 parts of ammonium persulfate and 0.1 parts of V50 are dissolved in 5 parts of deionized water Then add it to the dropping material and stir evenly, then slowly add it dropwise to the bottom material for 1.5 hours, keep it warm for 1 hour after the dropping, then raise the temperature to 75°C for 1 hour, add 0.5 part of liquid paraffin, and cool down to room temperature, The organic oil phase was separated and re...

Embodiment 22

[0158]Use 350 parts of n-heptane and 22 parts of Span-40 as the base material, heat to dissolve, mix well, condense and reflux, pass inert gas to remove oxygen while stirring, and heat up to 70°C. Then 73.5 parts of acrylamide, 5 parts of N,N-dimethylacrylamide, 50 parts of dimethylaminoethyl methacrylate, 14 parts of acryloyloxyethyltrimethylammonium chloride, 22 parts of acrylic acid, sodium formate 0.2 parts, 0.03 parts of EDTA-2Na, 2 parts of dilute sulfuric acid, and 121 parts of deionized water are fully dissolved as the dropping material, and 0.2 parts of ammonium persulfate is dissolved in 2 parts of deionized water and then added to the dropping material and stirred evenly. Then it was slowly added dropwise to the base material for 1.5 hours, kept warm for 1 hour after the dropwise addition, then raised to 75°C for 1 hour, added 0.5 parts of liquid paraffin, lowered to room temperature, and quickly filtered to separate and remove the organic oil phase. The polymer was...

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Abstract

The invention discloses water-soluble solid polyacrylamide. The water-soluble solid polyacrylamide is formed by chain polymerization and copolymerization of at least four kinds of monomers comprisingnonionic monomers A, nonionic monomers B, cationic monomers and anionic monomers. The invention can solve the problems of low molecular weight, low content of effective substances, poor storage stability, short guarantee period and the like in an aqueous-solution-type amphoteric polyacrylamide product. Products with higher molecular weights can be obtained, and the water-soluble solid polyacrylamide has the advantages of high content of effective substances and low transport cost, is not easily hydrolyzed, and does not easily get mildew. The invention also discloses an application of the water-soluble solid polypropylene in the enhancement and / or modification of natural fiber materials or semi-synthetic fiber materials, the improvement of drainability is promoted, and the increase of strength is facilitated.

Description

[0001] Cross References to Related Applications [0002] The present application claims the priority of Chinese patent application CN201710455621.2 filed on June 16, 2017, the entire content of which is incorporated in the present application by reference. technical field [0003] The invention belongs to the field of water-soluble polymer materials, and in particular relates to a novel water-soluble solid polyacrylamide and its application. Background technique [0004] As an excellent industrial additive, polyacrylamide can be divided into three categories according to the product state: aqueous solution type, emulsion type, and solid type (or powder type). According to its chargeability, it can be divided into cationic polyacrylamide, anionic polyacrylamide, nonionic polyacrylamide and amphoteric polyacrylamide. Amphoteric polyacrylamide has a wider range of applications because it contains both anionic and cationic groups in its molecules. Compared with polyacrylamide c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/56C08F220/34C08F220/06C08F220/54C08F222/02C08F222/38C08F220/58C08F222/06C08F226/02C08F226/10C08F2/10C08F2/38C08F2/48C08F2/46C08F2/54C08F4/40C08L33/26
CPCC08F2/10C08F2/38C08F2/46C08F2/48C08F2/54C08F4/40C08F220/56C08L33/26C08F220/34C08F220/06C08F220/54C08F222/02C08F222/385C08F220/58C08F222/06C08F226/02C08F222/34C08F226/10
Inventor 魏星光史亚鹏王勤何国锋郭志宇李国红闫武军于胜利
Owner JIANGSU FEYMER TECH
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