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Preparation method of carboxyl alkyl type emulsion polymer

An emulsion polymer, alkyl technology, applied in the direction of coating, can solve the problems of uneven distribution of internal bonding force, large influence by temperature difference, poor durability, etc., to ensure smooth and defect-free, large molecular weight and excellent mechanical properties Effect

Active Publication Date: 2020-02-25
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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  • Preparation method of carboxyl alkyl type emulsion polymer

Examples

Experimental program
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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

A preparation method of a carboxyl alkyl type emulsion polymer is disclosed. A carboxyl strong-hydrophilic monomer and a long alkyl chain hydrophobic monomer are adopted as raw materials in the method. Polymer waterproof coating is prepared by a series of processes including dispersion pre-emulsification, constant-temperature polymerization, variable-speed stirring, and pH adjustment. Hydrogen bonds in carboxyl molecules can strengthen the internal binding force of the polymer, strong hydrophilic effect strengthens the adhesion with a matrix, the network-like binding effect of the cross-linking agent can significantly improve the mechanical properties between the polymers, and the polymer waterproof coating which is good in stability, high in adhesive force, and excellent and durable in waterproof effect can be produced.

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 Applications(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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