Stabilizing agent for lime colloid paint

A stabilizer and initiator technology, which is applied in the field of coating additives preparation, can solve the problems that the content of harmful substances is difficult to meet the requirements of environmental protection, and it is difficult to meet the requirements, so as to achieve the effect of low cost, good effect and good performance

Inactive Publication Date: 2013-10-09
LUOYANG INST OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

First, the content of harmful substances in formaldehyde coatings is difficult to meet the requirements of environmental protection; second, the scrub resistance of the coating film can generally only be maintained at 70 to 90 times, which is difficult to meet the requirements of GB / T9756-2001 (synthetic resin emulsion interior wall coatings)

Method used

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  • Stabilizing agent for lime colloid paint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Embodiment 1: a kind of calcium glue paint, is made up of the following pigment, filler, auxiliary agent, base material and dispersion medium in parts by weight: 25~35 parts of ash calcium powder, 5~10 parts of titanium white, 10~15 parts of heavy calcium, 5-10 parts of light calcium, 2-5 parts of sodium bentonite, 0.3 parts of defoaming agent, 0.4 parts of dispersing agent, 0.2 parts of wetting agent, 0.1 part of leveling agent, 0.1 part of film-forming aid, 0.15 parts of thickener 0.35 parts, 0.2-0.6 parts of stabilizer, 6-12 parts of emulsion, 1-47 parts of deionized water.

[0014] The preparation process is as follows: in the pre-dispersion stage, lime calcium powder, titanium dioxide, heavy calcium, light calcium, sodium bentonite, dispersant, wetting agent, defoamer, and deionized water are dispersed and mixed in proportion; then the mixture is passed through sand Grinding; in the dispersion stage, add stabilizers, defoamers, film-forming aids, leveling agents, t...

Embodiment 2

[0021] Embodiment 2: A calcium glue paint stabilizer is prepared by the following components by weight: 19 parts of water, 10 parts of polyethylene glycol 1200 monomethoxyether acrylate, and 30 parts of acrylic acid are made into monomer aqueous solution for later use , make 25 parts of water and 0.5~2.5 parts of ammonium persulfate into an aqueous initiator solution for later use; add 1.2 parts of sodium methallylsulfonate and 18.5 parts of water into the container, raise the temperature to 75~80°C, and start dripping Add the monomer aqueous solution and the initiator aqueous solution. The monomer aqueous solution is added dropwise in 3 hours, and the initiator aqueous solution is added dropwise in 4 hours. The aqueous solution adjusts the pH to 7-8.

[0022] Polyethylene glycol 1200 monomethoxy ether acrylate is prepared from the following components by weight: 120 parts of polyethylene glycol 1200 monomethoxy ether, 0.28 parts of hydroquinone, 7.8 parts of acrylic acid, 1.0...

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Abstract

The invention relates to a stabilizing agent for lime colloid paint. The stabilizing agent is prepared by blending 19 weight parts of water, 10 weight parts of polyethyleneglycol mono-methoxy ether acrylate, and 30 weight parts of acrylic acid to prepare a monomer aqueous solution for later use; blending 25 weight parts of water and 0.5 to 2.5 weight parts of ammonium persulfate to prepare an initiator aqueous solution for later use; and adding 1.2 weight parts of sodium methyl allyl sulfonate and 18.5 weight parts of water into a container, heating to the temperature of between 75 and 80 DEG C, dripping the monomer aqueous solution and the initiator aqueous solution, after dripping the monomer aqueous solution and the initiator aqueous solution, heating to the temperature of 87 DEG C for reacting for 2 hours, cooling to the temperature of below 40 DEG C, and adding a sodium hydroxide aqueous solution to regulate the pH value to 7 to 8, wherein the monomer aqueous solution is dripped for 3 hours, and the initiator aqueous solution is dripped for 4 hours. The stabilizing agent has a good effect and is little in using amount, and the prepared lime colloid paint has high performance and is low in cost.

Description

technical field [0001] The invention belongs to the preparation technology of coating additives, in particular to a lime-based architectural coating additive. Background technique [0002] In recent years, with the soaring prices of petrochemical raw materials, the cost of coatings has risen sharply, which has significantly reduced the profit margins of production companies. In this situation, it is difficult to solve the problem of high production cost by tapping the potential of a mature product such as "latex paint". The development of new coatings with high performance and low cost has become the most active choice to change this situation. Calcium glue paint (also known as gray calcium powder coating) is a new type of architectural coating with gray calcium powder as active filler and polymer as adhesive. It can react with carbon dioxide in the air to generate calcium carbonate, which is formed together with film formers. An intricate and tight grid waterproof layer....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D7/12C08F290/06C08F220/06C08F222/02C08F222/06C08F222/04C08F228/02C08F220/58C09D5/34
Inventor 付新建刘少兵周思凯徐亚娟胡骥王万慧
Owner LUOYANG INST OF SCI & TECH
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