Inorganic nano particle modified composite waterproof emulsion and preparation method thereof

A technology of inorganic nano-particles and waterproof emulsion, applied in the direction of coating, etc., can solve the problems of ignoring the wear resistance and self-cleaning of emulsion, and achieve the effect of improving the related performance of emulsion and reducing the interaction

Active Publication Date: 2012-03-28
CHINA MCC17 GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the emulsion preparation method disclosed in the above-mentioned patent improves the aging resistance of the emulsion, the waterproof performance and the stability of the nanoparticles in the emulsion, it ignores the wear resistance and self-cleaning properties of the emulsion

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Embodiment 1: the mass percent of inorganic nanoparticle modified composite waterproof emulsion is as follows:

[0041] Acrylic 3%

[0042] Methyl methacrylate 18%

[0043] Butyl Acrylate 16%

[0044] Other monomers 1.3%

[0045] Modified Nanoparticle Blend 2.4%

[0046] Complex emulsifier 1.5%

[0047] Initiator 0.4%

[0048] Silicone monomer 3.1%

[0049] Appropriate amount of pH adjuster

[0050] Deionized water 52%

[0051] Sodium bicarbonate 0.4%

[0052] Weigh the modified nanoparticles contained in the formula and disperse them into the acrylic monomer mixture, first mechanically stir for 0.5h, and then sonicate for 1h. Add a certain amount of deionized water into a four-neck flask equipped with a thermometer, a reflux condenser, a stirrer and a dripping device, adjust the temperature of the water bath to 40°C, and add all the emulsifier, 2 / 3 of the initiator and a certain amount of water to the reactor. Measure sodium bicarb...

Embodiment 2

[0057] Embodiment 2: the mass percent of inorganic nanoparticle modified composite waterproof emulsion is as follows:

[0058] Acrylic 2.3%

[0059] Methyl methacrylate 17%

[0060] Butyl Acrylate 15%

[0061] Other monomers 1.8%

[0062] Modified Nanoparticle Blend 3.2%

[0063] Complex emulsifier 1.8%

[0064] Initiator 0.5%

[0065] Silicone monomer 4.0%

[0066] Appropriate amount of pH adjuster

[0067] Deionized water 50.5%

[0068] Sodium bicarbonate 0.5%

[0069] Weigh the modified nanoparticles contained in the formula and disperse them into the acrylic monomer mixture, stir mechanically for 0.5h, and then sonicate for 1.5h. Add a certain amount of deionized water into a four-necked flask equipped with a thermometer, a reflux condenser, a stirrer and a dripping device, adjust the temperature of the water bath to 45°C, and add all the emulsifier, 2 / 3 of the initiator and a certain amount of water to the reactor. Measure sodium bicarbonate, a...

Embodiment 3

[0074] Embodiment 3: the mass percent of inorganic nanoparticle modified composite waterproof emulsion is as follows:

[0075] Acrylic 2.6%

[0076] Methyl methacrylate 19%

[0077] Butyl Acrylate 16%

[0078] Other monomers 1.7%

[0079] Modified Nanoparticle Blend 3.5%

[0080] Complex emulsifier 2.0%

[0081] Initiator 0.6%

[0082] Silicone monomer 3.4%

[0083] Appropriate amount of pH adjuster

[0084] Deionized water 50%

[0085] Sodium bicarbonate 0.7%

[0086] Weigh the modified nanoparticles contained in the formula and disperse them into the acrylic monomer mixture, first mechanically stir for 0.5h, and then sonicate for 2h. Add a certain amount of deionized water into a four-necked flask equipped with a thermometer, a reflux condenser, a stirrer and a dripping device, adjust the temperature of the water bath to 45°C, and add all the emulsifier, 2 / 3 of the initiator and a certain amount of water to the reactor. Measure sodium bicarb...

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Abstract

The invention provides inorganic nano particle modified composite waterproof emulsion and a preparation method thereof and belongs to the technical field of preparation of an exterior wall water-based paint. The composite waterproof emulsion comprises the following components in percentage by mass: 2 to 3 percent of acrylic acid, 15 to 20 percent of methyl methacrylate, 12 to 16 percent of butyl acrylate, 1 to 3 percent of other monomers, 2.4 to 4.8 percent of modified nano particle mixture, 1.5 to 3 percent of complex emulsifying agent, 0.4 to 0.8 percent of initiator, 2.4 to 4.8 percent of organic silicone monomer, a right amount of pH regulator, 45 to 55 percent of deionized water and 0.3 to 0.7 percent of buffering agent. In the invention, the addition speed, the addition ratio and the stirring speed of nano particles are strictly controlled. Compared with emulsion which is not modified, the prepared emulsion provided by the invention has the advantage that the waterproofness, themechanical strength, the self-cleaning property and the aging resistance of the emulsion are improved.

Description

technical field [0001] The invention belongs to the technical field of preparation of water-based coatings for exterior walls, and in particular relates to inorganic nanoparticle modified composite waterproof emulsion and a preparation method thereof. Background technique [0002] Emulsion properties play a decisive role in coatings. A variety of water-based paints on the market have been applied to outdoor decoration, among which the defects of emulsion properties lead to poor scrub resistance, poor adhesion of the coating film and non-dense coating, resulting in poor performance of the coating and peeling of the coating, and the phenomenon of mottled walls It is everywhere, which not only greatly affects the appearance, but also causes a lot of waste of resources, pollution of living environment and other problems. [0003] In order to solve the quality problem of coatings, researchers have proposed a variety of solutions, among which the better method is to dope inorgani...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/14C08F220/18C08F220/06C08F230/08C08F2/26C08F2/30C08F2/44C08K9/06C08K3/36C08K3/22C09D133/12
Inventor 尹万云张千峰张淦金仁才陈均
Owner CHINA MCC17 GRP
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