Highly dispersible environment-friendly pure acrylic emulsion for painting materials and its preparation method and application

A high-dispersity, pure acrylic emulsion technology, used in coatings, anti-corrosion coatings, etc., can solve the problems of lack of production capacity of acrylic emulsion adhesives, sub-field research and low investment, and meet basic performance requirements, Eco-friendly effect

Active Publication Date: 2021-11-16
安德士新材料(中山)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Although the painting material manufacturers have a strong demand for the upstream acrylic emulsion adhesive and its accessories, none of the painting material manufacturers has the production capacity of the acrylic emulsion adhesive, and the upstream acrylic emulsion company has little research and investment in the subdivision field

Method used

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  • Highly dispersible environment-friendly pure acrylic emulsion for painting materials and its preparation method and application
  • Highly dispersible environment-friendly pure acrylic emulsion for painting materials and its preparation method and application
  • Highly dispersible environment-friendly pure acrylic emulsion for painting materials and its preparation method and application

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preparation example Construction

[0067] An embodiment of the present invention also provides the preparation method of the high-dispersibility environment-friendly pure acrylic emulsion that is used for painting materials described in any one of the above, may comprise the steps:

[0068] 1) Mixed emulsifier: use 2-amino-2-methyl-1-propanol to neutralize the phosphoric acid ester type anionic emulsifier, mix it with a nonionic emulsifier to obtain a mixed emulsifier;

[0069] 2) Emulsion preparation: add deionized water to the emulsification tank, put part of the mixed emulsifier into the water in the emulsification tank, stir and disperse at high speed for 10-30 minutes, then slowly add unsaturated monomers and (meth)acrylic acid, and continue stirring for 10-30 minutes minutes, then add (meth)acrylic acid C 1-8 Alkyl ester, alkoxysilane 80wt%-90wt%, stirring for 10-60 minutes for later use;

[0070] 3) Preparation of the bottom material of the reaction tank: add deionized water to the reaction tank, raise ...

Embodiment 1

[0091] Composition and ratio

[0092] A highly dispersible environmentally friendly pure acrylic emulsion, which is composed of the following raw materials in weight ratio: methyl methacrylate: 15%; n-butyl acrylate: 15%; isooctyl acrylate: 10%; acrylic acid: 0.6%; acrylic acid Hydroxyethyl ester: 0.8%; ureidomethacrylate: 0.5%; vinyltrimethoxysilane: 0.8%; mixed emulsifier: 1.5%; the ratio of anionic emulsifier to nonionic emulsifier: 1:1; Anionic emulsification: allyl fatty alcohol polyoxyethylene ether phosphate diester (allyl tridecyl alcohol polyoxyethylene ether phosphate diester), nonionic emulsifier is isomer alcohol polyoxyethylene ether (isomeric tridecyl alcohol Polyoxyethylene ether); Initially adding initiator and dripping initiator total amount is potassium persulfate: 0.3%; Initially adding initiator and dripping initiator are distributed as: 2:8; tert-butyl hydroperoxide-sulfurous acid Sodium hydrogen, the ratio is 1:1, accounting for 0.2%; the preservative is...

Embodiment 2

[0104] Composition and ratio

[0105] A high-dispersion environment-friendly pure acrylic emulsion, which is composed of the following raw materials by weight: methyl methacrylate: 15%; n-butyl acrylate: 15%; isooctyl acrylate: 10%; acrylic acid: 0.6%; Amide: 0.8%; ureidomethacrylate: 0.5%; vinyltrimethoxysilane: 0.8%; mixed emulsifier: 1.5%; ratio of anionic emulsifier and nonionic emulsifier: 1:1; anionic emulsification It is: allyl fatty alcohol polyoxyethylene ether phosphate diester, the non-ionic emulsifier is fatty alcohol polyoxyethylene ether; the initial initiator and drip initiator are potassium persulfate: 0.3%; the initial initiator and drip The distribution of adding initiator is: 2:8; tert-butyl hydroperoxide-sodium bisulfite, the ratio is 1:1, accounting for 0.2%; the preservative is phenoxyethanol, the dosage is 0.8%; AMP-95 : The dosage is 1%; post-addition of γ-(2,3-epoxypropoxy)propyltrimethoxysilane (A-187) is 0.1%; deionized water is 53.4%.

[0106] pre...

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Abstract

The disclosure provides a high-dispersibility environment-friendly pure acrylic emulsion for painting materials and its preparation method and application, and relates to the technical fields of fine chemicals and materials. The resulting emulsion can be used as a painting material when mixed with water-based color paste, which not only meets the basic performance requirements, but also has high dispersibility, adhesion, color development, and high environmental protection, which meets the environmental protection and anticorrosion system standards of Europe and the United States. The emulsion is prepared from the following components: composite monomer, emulsifier, initiator, tert-butyl hydroperoxide-sodium bisulfite, deionized water, preservative, pH regulator; wherein, the emulsifier contains phosphoric acid Ester-type anionic emulsifiers and nonionic emulsifiers; composite monomers include alkoxysilane, (meth)acrylic acid C 1‑8 Alkyl esters, (meth)acrylic acid and unsaturated monomers other than alkoxysilanes, (meth)acrylic acid C 1‑8 Alkyl esters, (meth)acrylic acid.

Description

technical field [0001] The invention belongs to the technical field of fine chemicals and materials, and relates to a pure acrylic emulsion for painting materials, in particular to a highly dispersible and environment-friendly pure acrylic emulsion for painting materials and its preparation method and application. Background technique [0002] Styrene-acrylic emulsion is a mixture prepared from styrene and acrylate monomers. [0003] Pure acrylic emulsion is a mixture prepared from methyl methacrylate, butyl acrylate, initiator and emulsifier. [0004] The emulsions used in the painting materials all adopt the emulsions used in interior and exterior wall paints in the construction industry. The requirements for interior and exterior wall coatings are excellent scrub resistance, chalk resistance, water and alkali resistance, abrasion resistance, smoothness and smoothness. In addition to meeting the basic performance requirements, the emulsion for painting materials also nee...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/14C08F220/18C08F220/06C08F220/20C08F220/34C08F230/08C08F220/56C08F2/26C08F2/30C09D133/08C09D133/12C09D5/08
CPCC08F2/26C08F2/30C08F220/14C08F220/18C09D5/08C09D143/04
Inventor 杨灿李鸿坚唐铖
Owner 安德士新材料(中山)有限公司
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