Permeable closed amphoteric emulsion for primer and preparation method thereof

A technology of sealing and primer, applied in the direction of primer, coating, etc., can solve the problems of vigorous promotion and application of unsealable primer, wall foundation reinforcement performance that cannot be loosened, and insufficient maintenance time of cement substrate, etc., to achieve excellent Penetration reinforcement performance, improvement of permeability performance, and strong anti-salinity performance

Inactive Publication Date: 2020-06-05
广东巴德富新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the mainstream primer product on the market is anionic acrylate emulsion, which has good stability after being formulated with primer, and its performance basically meets the requirements of the market under normal circumstances, but in actual construction projects, there are often problems caused by irregular construction. As a result, the maintenance time of the cement base material is not enough, the base material is alkaline or the salt content is too high, an

Method used

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  • Permeable closed amphoteric emulsion for primer and preparation method thereof
  • Permeable closed amphoteric emulsion for primer and preparation method thereof
  • Permeable closed amphoteric emulsion for primer and preparation method thereof

Examples

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Example Embodiment

[0033] In addition, the present invention also provides a preparation method of the amphoteric emulsion for the penetration-blocking primer, comprising the following steps:

[0034] 1) Preparation of pre-emulsion: under normal temperature and pressure, add 1.5-3.75 parts of emulsifier and 40-85 parts of deionized water to the emulsification tank, after fully stirring and dissolving, slowly add the formula amount of benzene while stirring. Ethylene, n-butyl acrylate in formula, isooctyl acrylate in formula, glycidyl methacrylate in formula, cationic monomer in formula, anionic monomer in formula, hydrophilic monomer in formula, 0.4 -2 parts of cross-linking monomer and 0.3-1.2 parts of initiator, fully stirred for 30-40min to obtain pre-emulsion;

[0035] 2) Preparation of seed emulsion: under normal temperature and pressure, add the remaining amount of emulsifier and the remaining amount of deionized water into the reaction kettle, stir and dissolve fully, add hydrochloric aci...

Example Embodiment

[0038] Example 1

[0039] An amphoteric emulsion for penetrating and sealing primer, which is prepared by mass parts from the following raw materials: 60 parts of deionized water, 50 parts of styrene, 5 parts of n-butyl acrylate, 5 parts of isooctyl acrylate, and 2 parts of emulsifier parts, 2 parts of glycidyl methacrylate, 3 parts of dodecyl methacrylate, 3 parts of methyl erucate, 2 parts of cationic monomer, 2 parts of anionic monomer, 1 part of crosslinking monomer, hydrophilic 3 parts of monomer and 1 part of initiator.

[0040] The emulsifier is mixed with N-(1,2-dicarboxylate ethyl)-N-octadecylaminosulfosuccinylplatinate sodium salt and polyethylene glycol methacrylate in a mass ratio of 2:1. The crosslinking monomer adopts trimethylolpropane trimethacrylate.

[0041] The cationic monomer is mixed with acryloyloxyethyltrimethylammonium chloride and dimethyldiallylammonium chloride in a mass ratio of 1:1. The anionic monomer adopts acrylic acid.

[0042] The hydroph...

Example Embodiment

[0051] Example 2

[0052] An amphoteric emulsion for penetrating and sealing primer, which is prepared in parts by mass from the following raw materials: 70 parts of deionized water, 60 parts of styrene, 10 parts of n-butyl acrylate, 10 parts of isooctyl acrylate, and 3 parts of emulsifier parts, 5 parts of glycidyl methacrylate, 5 parts of dodecyl methacrylate, 5 parts of methyl erucate, 5 parts of cationic monomer, 3 parts of anionic monomer, 2 parts of cross-linking monomer, hydrophilic 5 parts of monomer and 1.5 parts of initiator.

[0053] The emulsifier is mixed with cetyltrimethylammonium bromide and allyloxy polyoxyethylene ether in a mass ratio of 5:1.

[0054] The cross-linking monomer is mixed with vinyl tri(methoxyethoxy) silane and pentaerythritol triallyl ether in a mass ratio of 1:1.

[0055] The cationic monomer is mixed with acryloyloxyethyltrimethylammonium chloride, dimethyldiallylammonium chloride and dimethylaminoethyl methacrylate in a mass ratio of 1:2...

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Abstract

The invention discloses a permeable closed amphoteric emulsion for a primer. The amphoteric emulsion is prepared from the following raw materials in parts by weight: 50 to 110 parts of deionized water; 10-60 parts of styrene, 5 to 20 parts of n-butyl acrylate; 5-20 parts of iso-octyl acrylate, 2-5 parts of an emulsifier, 2-5 parts of glycidyl methacrylate, 2-5 parts of dodecyl methacrylate, 2-5 parts of methyl erucate, 2-5 parts of a cationic monomer, 2-5 parts of an anionic monomer, 0.5-2.5 parts of a crosslinking monomer, 1-5 parts of a hydrophilic monomer and 0.5-2 parts of an initiator. The emulsion is zwitter-ionic amphoteric emulsion for permeable closed primer, and has excellent paint preparation stability, excellent permeation reinforcing performance and salt and alkali flooding resistance.

Description

technical field [0001] The invention relates to an amphoteric emulsion for a penetrating sealing primer and a preparation method thereof, belonging to the field of primer emulsions. Background technique [0002] With the gradual advancement of economic development and urbanization, architectural coatings have gradually become the main material for building interior and exterior wall decoration, and the role of primers has attracted more and more attention. At present, the mainstream primer product on the market is anionic acrylate emulsion, which has good stability after being formulated with primer, and its performance basically meets the requirements of the market under normal circumstances, but in actual construction projects, there are often problems caused by irregular construction. As a result, the maintenance time of the cement base material is not enough, the base material is alkaline or the salt content is too high, and the exterior wall paint is pan-alkaline or blo...

Claims

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Application Information

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IPC IPC(8): C08F212/08C08F220/18C08F220/32C08F222/14C08F220/34C08F226/02C08F220/06C08F220/56C08F220/20C08F220/28C08F230/08C08F216/12C08F222/02C08F216/14C08F2/26C08F2/30C08F2/28C09D125/14C09D5/00
CPCC08F212/08C09D5/002C09D125/14C08F2/26C08F2/30C08F2/28
Inventor 黄顺基唐兵张稹韩庆强
Owner 广东巴德富新材料有限公司
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