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Method for preparing cation ester-based type soap-free emulsion polymer

A soap-free emulsion and polymer technology, applied in the fields of emulsion polymerization and polymer synthesis, can solve problems such as latex particles that are not well solved, and achieve the effects of significant entanglement, high reaction efficiency and mild reaction conditions.

Inactive Publication Date: 2020-01-14
HUBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the above-mentioned patents do not solve the problem of single dispersed latex particles with a clean surface, and overcome the defects caused by residual emulsifiers in the product.

Method used

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  • Method for preparing cation ester-based type soap-free emulsion polymer

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0048] A preparation method of a cationic ester-based soap-free emulsion polymer, which is mainly prepared from the following components:

[0049] Composition with a mass ratio of tetrabutylammonium bisulfate to tetrabutylphosphine fluoride of 2:1: 9 parts

[0050] The composition of octadecyl dimethyl benzyl ammonium chloride and tetrabutyl phosphine acetate with a mass ratio of 4:7: 8 parts

[0051] Sodium methacrylate: 0.5 parts

[0052] Azobisisobutyronitrile: 0.3 parts

[0053] Azobisisoheptanonitrile: 2.7 parts

[0054] Hydroxypropyl acrylate: 12 parts

[0055] Methacryloyloxyethyl hexahydrophthalate monoester: 243 parts

[0056] Hydroxyethyl Phthalic Anhydride Dimethacrylate: 3.2 parts

[0057] Perfluorooctyl ethyl acrylate: 7 parts

[0058] Ethanolamine: 3.3 parts

[0059] Potassium carbonate: 11 parts

[0060] The total mass parts is 1000, and the remainder is water.

[0061] 1) 200 parts of water, 8 parts of a composition with a mass ratio of octadecyldimeth...

example 2

[0066] A preparation method of a cationic ester-based soap-free emulsion polymer, which is mainly prepared from the following components:

[0067] The composition of tetramethylammonium acetate and tetrabutylphosphine fluoride with a mass ratio of 1:1: 12 parts

[0068] The composition of octadecyl dimethyl benzyl ammonium chloride and tetrabutyl phosphine acetate with a mass ratio of 4:1: 12 parts

[0069] Sodium methacrylate: 0.4 parts

[0070] Azobisisobutyronitrile: 0.4 parts

[0071] Azobisisoheptanonitrile: 3.8 parts

[0072] Diethyl maleate: 15 parts

[0073] The composition of n-butyl (meth)acrylate, isobutyl (meth)acrylate, and lauryl (meth)acrylate in a mass ratio of 1:2:3: 218 parts

[0074] Hydroxyethyl Phthalic Anhydride Dimethacrylate: 4.6

[0075] Perfluorooctyl ethyl acrylate: 15 parts

[0076] Triethanolamine: 5.8 parts

[0077] Potassium carbonate: 13 parts

[0078] The total mass parts is 1000, and the remainder is water.

[0079] 1) 200 parts of wa...

example 3

[0084] A preparation method of a cationic ester-based soap-free emulsion polymer, which is mainly prepared from the following components:

[0085] Composition with a mass ratio of tetrabutylammonium bisulfate to tetrabutylphosphine fluoride of 2:1: 7 parts

[0086] The composition of dodecyltrimethylammonium chloride and tetrabutylphosphine acetate with a mass ratio of 1:1: 10 parts

[0087] Sodium methacrylate: 0.8 parts

[0088] Azobisisobutyronitrile: 0.7 parts

[0089] Azobisisoheptanonitrile: 4 parts

[0090] Vinyl acetate: 9 parts

[0091] 2-Propylheptyl acrylate: 232 parts

[0092] Composition of 3:2 mass ratio of hydroxyethyl pyrophthalic anhydride dimethacrylate to di(methacryloyloxyethyl) pyrophthalic anhydride ester: 6.5 parts

[0093] Perfluorooctyl ethyl acrylate: 12 parts

[0094] Ethanolamine: 3 parts

[0095] Potassium hydroxide, sodium carbonate, and sodium bicarbonate in a mass ratio of 2:2:1: 15 parts

[0096] The total mass parts is 1000, and the re...

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Abstract

The invention discloses a method for preparing a cation ester-based type soap-free emulsion polymer. According to the method, a cation type and an ester-based monomer are adopted as raw materials, a soap-free emulsion polymerization method is implemented, meanwhile, a pH value adjusting agent is adopted to control the pH value of a reaction environment within 8-8.5, a soap-free cation hydrophilicmonomer, a soap-free ester-based hydrophobic monomer and an initiator a are enabled to react to synthesize a soap-free polymer, and the soap-free polymer is further reacted with other raw materials tosynthesize a polymer emulsion. The preparation method has the advantages of being rapid in polymerization speed, small in reaction step, small in environment pollution and mild in reaction condition,the synthesized product is good in permeation resistance, good in peeling effect and excellent in waterproof effect and weather resistance, no expensive emulsifier is added in the synthesis process,and thus the production cost is also greatly reduced.

Description

technical field [0001] The invention belongs to the field of polymer synthesis, relates to the field of emulsion polymerization, in particular to a method for preparing cationic ester-based soap-free emulsion polymers. Background technique [0002] Emulsion polymerization uses water as the dispersion medium, which has the advantages of fast polymerization rate, low viscosity of the system, and preparation of polymers. However, emulsifiers are often added to stabilize latex particles in traditional emulsion polymerization. The presence of emulsifiers has adverse effects on the optical properties, electrical properties, and water resistance of polymers, and at the same time increases the cost of post-processing and pollutes the environment. In order to overcome this defect, people have gradually developed a soap-free emulsion polymerization method. [0003] Soap-free emulsion polymerization refers to emulsion polymerization that contains no emulsifier or only a small amount o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/28C08F220/24C08F220/20C08F218/08C08F220/18C08F4/04C08F2/22
CPCC08F2/22C08F4/04C08F220/18C08F220/28
Inventor 柯凯刘飞宏姚恒
Owner HUBEI UNIV OF TECH
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