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A kind of preparation method of ether modified hydroxy alkyl polymer emulsion

A technology of polymer emulsion and hydroxyalkyl, which is applied in the direction of coating, etc., can solve problems such as cracking, weak intramolecular bonding, and low stability, and achieve enhanced adhesion, suitable glass transition temperature, and excellent mechanical properties. Effect

Active Publication Date: 2022-03-04
HUBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The waterproof coatings in the prior art may have problems such as weak intramolecular bonding, low stability, and cracking during use, and there is an urgent need for a coating product with excellent comprehensive performance

Method used

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  • A kind of preparation method of ether modified hydroxy alkyl polymer emulsion

Examples

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Comparison scheme
Effect test

example 1

[0058] The raw materials required for preparing ether-modified hydroxyalkyl polymer milk, in terms of total mass parts 1000, include the following components by mass parts:

[0059] Propyl alcohol: 4.0 parts

[0060] N-dodecylacrylamide: 14.0

[0061] tert-butyl peroxyvaleric acid: 0.3 parts

[0062] Sodium hypophosphite: 0.45 parts

[0063] Methacryl alcohol: 12.5 parts

[0064] N-octadecyl acrylamide: 260 parts

[0065] Azoisobutylcyanoformamide: 5.2 parts

[0066] Di(methacryloyloxyethyl)phthalic anhydride ester: 2.2 parts

[0067] Ethanolamine: 1.5 parts

[0068] Diethanolamine: 2.5 parts

[0069] Diaminododecylbenzene: 38 parts

[0070] Cyclohexyl methacrylate: 138 parts

[0071] Block copolyether of ethylene oxide and propylene oxide with a mass ratio of 2:1: 23 parts

[0072] Graphene oxide: 0.32 parts

[0073] The balance is water.

[0074] The preparation method is as follows:

[0075] 1) Preparation of emulsifier: 8 parts of deionized water, 4.0 parts of...

example 2

[0081] The raw materials required for preparing ether-modified hydroxyalkyl polymer milk, in terms of total mass parts 1000, include the following components by mass parts:

[0082] Methacryl alcohol: 4.0 parts

[0083] N-dodecylacrylamide: 14.0

[0084] tert-butyl peroxyvaleric acid: 0.3 parts

[0085] Sodium hypophosphite: 0.45 parts

[0086] Composition of 4-(ethyleneoxy)-1-butanol and isopentenol with a mass ratio of 1:1: 12.5 parts

[0087] Composition of N-octadecyl acrylamide and octadecyl vinyl ether with a mass ratio of 2:1: 260 parts

[0088] Composition of azobisisobutyronitrile and azobisisoheptanonitrile with a mass ratio of 1:3: 5.3 parts

[0089] Ethylene glycol dimethacrylate: 2.2 parts

[0090] Ethanolamine: 1.5 parts

[0091] Sodium bicarbonate: 2.5 parts

[0092] Composition of diaminododecylbenzene and diaminooctadecylbenzene with a mass ratio of 1:2: 38 parts

[0093] Cyclohexyl methacrylate: 138 parts

[0094] Block copolyether of ethylene oxide ...

example 3

[0104] The raw materials required for preparing ether-modified hydroxyalkyl polymer milk, in terms of total mass parts 1000, include the following components by mass parts:

[0105] Methacryl alcohol: 4.0 parts

[0106] Octadecyl vinyl ether: 14.0

[0107] Dicyclohexyl peroxydicarbonate: 0.3 parts

[0108] Sodium methacrylate: 0.45 parts

[0109] Composition of 4-(ethyleneoxy)-1-butanol and isopentenol with a mass ratio of 1:1: 12.5 parts

[0110] Composition of N-octadecyl acrylamide and octadecyl vinyl ether with a mass ratio of 2:1: 260 parts

[0111] Composition of azobisisobutyronitrile and azobisisoheptanonitrile with a mass ratio of 1:3: 5.3 parts

[0112] Ethylene glycol dimethacrylate: 2.1 parts

[0113] Ethanolamine: 1.5 parts

[0114] Sodium bicarbonate: 2.5 parts

[0115] Composition of diaminododecylbenzene and diaminooctadecylbenzene with a mass ratio of 1:2: 38 parts

[0116] Composition of dicyclopentadiene acrylate and dicyclopentadiene ethoxy acrylate...

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Abstract

The invention discloses a preparation method of ether modified hydroxy alkyl polymer emulsion. Raw materials required for preparation: 3.2-5.5 parts of hydroxyl-based hydrophilic small monomers for emulsification, 6.8-15.0 parts of alkyl-based hydrophobic small monomers for emulsification, 0.15-0.35 parts of emulsion initiator a, 0.35-0.56 parts of chain transfer agent, 8.6-15.5 parts of hydroxyl-based hydrophilic small monomers, 35-46 parts of flexible small monomers, 18-28 parts of ether polymers, 3.5-6.8 parts of initiator b, 230-280 parts of alkyl-based hydrophobic small monomers, 120-160 parts of acrylate hard monomer, 1.2-3.5 parts of cross-linking agent, 1.2-2.6 parts of neutralizer, 2.3-4.5 parts of pH regulator, 0.23-0.46 parts of functional monomer, supplemented with deionized water to 1000 parts . The present invention uses hydroxyl strong hydrophilic monomers and long alkyl chain hydrophobic monomers as raw materials, and synthesizes a product with good stability, strong adhesion and excellent waterproof effect through processes such as dispersion pre-emulsification, constant temperature polymerization, variable speed stirring, and pH adjustment. Durable polymer coating, the polar effect of hydroxyl group can greatly strengthen the stability of polymer emulsion, strong hydrophilic effect strengthens the adhesion, and the cross-linking agent network can significantly improve the mechanical properties.

Description

technical field [0001] The invention belongs to the technical field of building waterproof materials, in particular to a preparation method of an ether-modified hydroxyalkyl polymer emulsion. Background technique [0002] Waterproof materials are an indispensable part of construction engineering structures, and are widely used in water conservancy projects, highway bridges and other fields. The durability of buildings is closely related to the quality of waterproof materials. With the rapid development of society and continuous innovation of technology, various new and efficient waterproof materials have begun to appear. Due to the uneven quality of real estate houses, cracks are prone to appear in places such as roofs, kitchens, bathrooms, and basements, resulting in water seepage, mold, and shedding. Although the existing waterproof coatings on the market have certain elongation and mechanical strength, the surface of the coating film is prone to defects such as tiny cra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F265/04C08F220/54C08F216/16C08F2/24C09D151/00C09D7/61C09D7/65
CPCC08F265/04C08F2/24C09D151/003C09D7/61C09D7/65C08F220/54C08F216/165C08L71/02C08K3/042
Inventor 王迎斌李佳伟贺行洋苏英罗人豪
Owner HUBEI UNIV OF TECH
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