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Synthetic styrene-acrylic latex

A technology of styrene-acrylic latex and hydroxypropyl latex, which is applied in the field of synthetic styrene-acrylic latex, can solve the problems of uneven product quality, poor water resistance, and large usage, and achieve good mechanical processing adaptability, strong adhesion, and less foaming Effect

Inactive Publication Date: 2009-09-16
QUANZHOU DELI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the production of styrene-acrylic emulsion in my country is very scattered, and the competition among small and medium-sized enterprises is also very fierce. Large-scale enterprises are growing, and the quality of products varies. The main disadvantages are poor water resistance and easy yellowing, followed by large usage
[0004] The key technology of synthetic styrene-acrylic emulsion to replace styrene-butadiene emulsion is the challenge of film hardness and weather resistance, which is difficult to achieve for ordinary emulsion products

Method used

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  • Synthetic styrene-acrylic latex

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A synthetic styrene-acrylic latex, the raw material of which has the following components by weight:

[0035] Methacrylic acid 2

[0036] Isooctyl acrylate 5

[0037] Styrene 10

[0038] Butyl acrylate 6

[0039] Alkylphenol polyoxyethylene (10) ether 0.4

[0040] Ammonium persulfate 0.1

[0041] Ionized water 65.

[0042] Dodecylbenzene sulfonic acid 0.1

[0043] Acrylamide 0.4

[0044] Diethanolamine 0.4

[0045] N-Hydroxypropyl solution 0.3.

Embodiment 2

[0047] A synthetic styrene-acrylic latex, the raw material of which has the following components by weight:

[0048] Acrylic 4

[0049] Isooctyl acrylate 8

[0050] Styrene 15

[0051] Butyl acrylate 9

[0052] .Alkylphenol polyoxyethylene (10) ether 0.8

[0053] Ammonium persulfate 0.4

[0054] Ionized water 80

[0055] Dodecylbenzene sulfonic acid 0.5

[0056] Acrylamide 0.8

[0057] Diethanolamine 0.8

[0058] N-Hydroxypropyl solution 0.7.

Embodiment 3

[0060] A synthetic styrene-acrylic latex, the raw material of which has the following components by weight:

[0061] Acrylic 3

[0062] Isooctyl acrylate 6

[0063] Styrene 13

[0064] Butyl acrylate 7

[0065] Alkylphenol polyoxyethylene (10) ether 0.6

[0066] Ammonium persulfate 0.3

[0067] Ionized water 70

[0068] Dodecylbenzene sulfonic acid 0.3

[0069] Acrylamide 0.6

[0070] Diethanolamine 0.6

[0071]N-Hydroxypropyl solution 0.5.

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Abstract

The invention discloses synthetic styrene-acrylic latex, which includes components by weight: 2-4 parts of crylic acid, 5-8 parts of iso-octyl acrylate, 10-15 parts of styrene, 6-9 parts of butyl acrylate, 0.4-0.8 part of emulsifying agent, 0.1-0.4 part of ammonium persulfate and 65-80 parts of ionic water. Because soft monomer and hard monomer proportion MAA:St:BA is 36:25:36, the obtained emulsion has high hardness, and good anti-aging performance, when amount of seed emulsion is 10-12%, comprehensive properties of the obtained emulsion are best, and proper amount of carboxyl functional monomer is added to significantly improve polymerization stability of the emulsion, calcium ionic stability, emulsion viscosity and film water absorption rate.

Description

Technical field [0001] The invention relates to an emulsion paint, in particular to a synthetic styrene-acrylic latex. Background technique [0002] Acrylic polymers have become a leader among many polymer emulsion products due to their superior film-forming properties, good oil and weather resistance, and excellent adhesion. Acrylic emulsion system with hard monomer styrene, referred to as benzene emulsion for short, has high weather resistance, color retention, stain resistance, etc. Styrene-acrylic emulsion is mainly used for architectural coatings, papermaking coating adhesives, etc. As an adhesive, it has high hardness and good water resistance. In addition, it can also be widely used as floor polish, colored sand paint, bump primer, etc. With the development of core-shell technology, interpenetrating polymer networks and soap-free emulsion polymerization, research on the use of styrene-acrylic emulsion will be more extensive. [0003] In recent years, the global styrene-acr...

Claims

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Application Information

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IPC IPC(8): C08F220/18C08F212/08C08F2/30
Inventor 李祎山吕浩辉彭海
Owner QUANZHOU DELI CHEM
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