A kind of preparation method of benzene ring type core-shell emulsion polymer for cement

A technology of core-shell emulsion and polymer, which is applied in the field of building surface waterproofing and bonding coatings, and building materials, can solve the problems of coating stain resistance, heat resistance and water resistance at the same time, and achieve narrow molecular weight distribution range, Strengthen the internal bonding force and the effect of good water resistance

Active Publication Date: 2022-02-01
HUBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem of building waterproofing to be solved by the present invention is to provide a method for preparing a benzene-ring core-shell emulsion polymer for cement, which solves the problem that the paint's stain resistance, heat resistance and water resistance cannot be simultaneously possessed in the prior art

Method used

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  • A kind of preparation method of benzene ring type core-shell emulsion polymer for cement
  • A kind of preparation method of benzene ring type core-shell emulsion polymer for cement

Examples

Experimental program
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Effect test

example 1

[0050] A preparation method of benzene ring core-shell emulsion polymer for cement, which is formed by polymerizing the following components, the total mass of raw materials is 1000 parts, and the components and process parameters are as follows:

[0051] Methacryl alcohol: 3.5 parts

[0052] 1-Phenylvinylboronic acid: 14.5

[0053] Dicyclohexyl peroxydicarbonate: 0.3 parts

[0054] Sodium methacrylate: 0.5 parts

[0055] Prenol: 9 parts

[0056] 2-ethylhexyl acrylate: 200 parts

[0057] 1-Phenylvinylboronic acid: 230 parts

[0058] Benzoyl peroxide: 1.5 parts

[0059] Di-tert-butyl peroxide: 1.5 parts

[0060] Sodium hypophosphite: 2.0 parts

[0061] Combination of bis(methacryloxyethyl) pyrophthalic anhydride ester and hydroxyethyl pyrophthalic anhydride dimethacrylate with a mass ratio of 1:1: 4 parts

[0062] Diethanolamine: 1.2 parts

[0063] Sodium bicarbonate: 2.8 parts

[0064] The composition of trifluoroethyl acrylate and perfluorooctyl ethyl acrylate with ...

example 2

[0072] A preparation method of benzene ring core-shell emulsion polymer for cement, which is formed by polymerizing the following components, the total mass of raw materials is 1000 parts, and the components and process parameters are as follows:

[0073] Methacryl alcohol: 3.5 parts

[0074] 1-Phenylvinylboronic acid: 14.5

[0075] Composition of dicyclohexyl peroxydicarbonate and tert-butyl peroxy tert-valerate with a mass ratio of 3:1: 0.3 parts

[0076] Sodium methacrylate: 0.5 parts

[0077] Prenol: 9 parts

[0078] 2-ethylhexyl acrylate: 200 parts

[0079] 1-Phenylvinylboronic acid: 230 parts

[0080] Benzoyl peroxide: 1.5 parts

[0081] Di-tert-butyl peroxide: 1.5 parts

[0082] Composition of sodium dithionite and ascorbic acid with a mass ratio of 1:3: 2.0 parts

[0083] Combination of bis(methacryloxyethyl) pyrophthalic anhydride ester and hydroxyethyl pyrophthalic anhydride dimethacrylate with a mass ratio of 1:1: 4 parts

[0084] Diethanolamine: 1.4 parts ...

example 3

[0094] A preparation method of benzene ring core-shell emulsion polymer for cement, which is formed by polymerizing the following components, the total mass of raw materials is 1000 parts, and the components and process parameters are as follows:

[0095] Methacryl alcohol: 3.5 parts

[0096] 1-Phenylvinylboronic acid: 14.5

[0097] Dicyclohexyl peroxydicarbonate: 0.3 parts

[0098] Sodium methacrylate: 0.5 parts

[0099] Composition of 4-(ethyleneoxy)-1-butanol and isopentenol with a mass ratio of 1:1: 9 parts

[0100] 2-ethylhexyl acrylate: 200 parts

[0101] 1:2 composition of 1-phenylvinylboronic acid and 4-methoxy-2-vinylaniline: 230 parts

[0102] Benzoyl peroxide: 1.5 parts

[0103] Di-tert-butyl peroxide: 1.5 parts

[0104] Sodium hypophosphite: 2.0 parts

[0105] Combination of bis(methacryloxyethyl) pyrophthalic anhydride ester and hydroxyethyl pyrophthalic anhydride dimethacrylate with a mass ratio of 1:1: 4 parts

[0106] Diethanolamine: 1.5 parts

[0107]...

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Abstract

The invention discloses a preparation method of a benzene ring core-shell emulsion polymer for cement. The invention uses hydroxyl hydrophilic monomer and benzene ring hydrophobic monomer as raw materials, and in an emulsification reaction system, undergoes emulsification reaction, constant temperature polymerization, pH A series of processes such as adjustment to prepare a polymer waterproof coating with narrow distribution and strong binding force, the hydrogen bond in the hydroxyl molecule can strengthen the internal binding force of the polymer, the strong hydrophilic effect strengthens the adhesion between the substrate and the hydroxyl group. It can stably complex calcium ions, tightly and firmly combine with cement particles, and achieve a good waterproof and impermeability effect; the invention combines the special synergistic effect of core-shell structure in performance or function, and has the characteristics of hard core and soft shell, It has good permeability and wettability to the surface of the combination, and it is not easy to dry and crack and can prolong the service life.

Description

technical field [0001] The invention belongs to the technical field of building materials, relates to the field of building surface waterproofing and adhesive coatings, in particular to a method for preparing a benzene-ring core-shell emulsion polymer for cement. Background technique [0002] 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 cracks and pinholes, which cannot achieve a good waterproof effect, resulting in failure of the waterproof project. The emulsion polymer prepared by the traditional process is slow to dry at room temperature to form a film, has poor leveling properties, and has small viscosity drops. The commonly used emulsifiers are not environmentally f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F265/04C08F230/06C08F220/24C08F220/18C08F216/04C08F2/26C08F228/02C08F220/20C09D151/00
CPCC08F265/04C08F2/26C08F230/06C08F220/18C09D151/003C08F220/24C08F220/20C08F216/04C08F228/02
Inventor 柯凯刘衍东姚恒
Owner HUBEI UNIV OF TECH
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