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A kind of preparation method of carboxyl alkyl emulsion polymer

An emulsion polymer and alkyl-based technology, applied in the direction of coating, etc., can solve the problems of uneven distribution of internal bonding force, great influence of temperature difference, poor durability, etc., and achieve suitable glass transition temperature, good hydrophobic effect, and durability Good results

Active Publication Date: 2021-09-24
HUBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The waterproof coating provided by the prior art has disadvantages such as uneven distribution of internal bonding force, poor adhesion, easy cracking, stickiness, great influence by temperature difference, and poor durability. There is an urgent need for a high durability and high adhesion coating with excellent comprehensive performance. waterproof coating

Method used

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  • A kind of preparation method of carboxyl alkyl emulsion polymer

Examples

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Comparison scheme
Effect test

example 1

[0062] Prepare carboxyalkyl emulsion polymer, required raw material, in total mass parts 1000 parts, comprise following mass parts components:

[0063] Itaconic acid: 3.6 parts

[0064] Octadecyl vinyl ether: 8.4 parts

[0065] tert-butyl peroxyvaleric acid: 0.2 parts

[0066] Sodium methacrylate: 0.35

[0067] Two compositions of carboxyl-based hydrophilic monomers itaconic acid and aconitic acid with a mass ratio of 1:1: 13 parts

[0068] Dicyclopentadiene ethoxy acrylate: 135 parts

[0069] Octadecyl vinyl ether: 248 parts

[0070] Azobisisoheptanonitrile: 3.0 parts

[0071] The composition of diaminododecylbenzene and diaminooctadecylbenzene with a mass ratio of 1:1: 35 parts

[0072] Ethylene oxide and propylene oxide block polyether with a mass ratio of 1:1: 36 parts

[0073] Diisononyl phthalate: 4 parts

[0074] Polyethylene glycol dimethacrylate: 4.5 parts

[0075] Triisopropanolamine: 1.6 parts

[0076] Sodium hydroxide: 2.4 parts

[0077] Graphene oxide: ...

example 2

[0086] Prepare carboxyalkyl emulsion polymer, required raw material, in total mass parts 1000 parts, comprise following mass parts components:

[0087] Itaconic acid: 3.6 parts

[0088] Octadecyl vinyl ether: 8.4 parts

[0089] tert-butyl peroxyvaleric acid: 0.2 parts

[0090] Sodium methacrylate: 0.35 parts

[0091] Aconitic acid: 13 parts

[0092] Dicyclopentadiene ethoxy acrylate: 135 parts

[0093] Octadecyl vinyl ether: 248 parts

[0094] Azobisisoheptanonitrile: 3.0 parts

[0095] The composition of diaminododecylbenzene and diaminooctadecylbenzene with a mass ratio of 1:1: 35 parts

[0096] Ethylene oxide and propylene oxide block polyether with a mass ratio of 1:1: 36 parts

[0097] Diisononyl phthalate: 4.0 parts

[0098] Polyethylene glycol dimethacrylate: 4.5 parts

[0099] Triisopropanolamine: 1.7 parts

[0100] Potassium carbonate: 2.3 parts

[0101] Graphene oxide: 0.3 parts

[0102] The balance is water

[0103] The preparation method is as follows:...

example 3

[0110] Prepare carboxyalkyl emulsion polymer, required raw material, in total mass parts 1000 parts, comprise following mass parts components:

[0111] Itaconic acid: 4.6 parts

[0112] Octadecyl vinyl ether: 8.4 parts

[0113] tert-butyl peroxyvaleric acid: 0.2 parts

[0114] Sodium methacrylate: 0.35 parts

[0115] Aconitic acid: 12 parts

[0116] Dicyclopentadiene ethoxy acrylate: 135 parts

[0117] Octadecyl vinyl ether: 247 parts

[0118] Composition of azobisisoheptanonitrile and dimethyl azobisisobutyrate with a mass ratio of 4:1: 3.0 parts

[0119] The composition of diaminododecylbenzene and diaminooctadecylbenzene with a mass ratio of 1:1: 35 parts

[0120] Ethylene oxide and propylene oxide block polyether with a mass ratio of 1:1: 38 parts

[0121] Diisononyl phthalate: 3.0 parts

[0122] Polyethylene glycol dimethacrylate: 4.5 parts

[0123] Triisopropanolamine: 1.6 parts

[0124] Sodium hydroxide: 2.4 parts

[0125] Graphene oxide: 0.3 parts

[0126] ...

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Abstract

The invention discloses a preparation method of a carboxyalkyl emulsion polymer. This method uses carboxyl strong hydrophilic monomers and long alkyl chain hydrophobic monomers as raw materials, and synthesizes a polymer waterproof coating through a series of processes such as dispersion pre-emulsification, constant temperature polymerization, variable speed stirring, and pH adjustment. Hydrogen bonds can strengthen the internal binding force of the polymer, and the strong hydrophilic effect can strengthen the adhesion between the matrix and the crosslinking agent. Large, long-lasting polymer waterproof coating with excellent waterproof effect.

Description

technical field [0001] The invention belongs to the technical field of building waterproof materials, in particular to a method for preparing a carboxyalkyl emulsion polymer. Background technique [0002] With the improvement of people's housing requirements, the requirements for waterproof coatings are also getting higher and higher. As architectural coatings, waterproof coatings have good water resistance, weather resistance, acid and alkali resistance and excellent delay performance. Asphalt-based waterproof coatings are mainly suitable for waterproofing of industrial and civil building roofs, concrete basements and toilets because of their small modification; polymer-modified asphalt waterproof coatings are modified by synthetic polymers, and their durability is enhanced. Yes, the adhesion has been improved, the elongation rate has also been increased, and the high and low temperature resistance performance has been improved, and it is also more environmentally friendly...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F265/04C08F216/18C08F220/54C08F2/26C08K3/04C09D151/00C09D7/61
CPCC08F2/26C08F265/04C09D151/003C09D7/61C08F216/18C08F220/54C08K3/042
Inventor 王迎斌罗人豪贺行洋苏英
Owner HUBEI UNIV OF TECH
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