Preparation method of special-purpose nanometer modifier of water-based coating

A technology for water-based coatings and modifiers, which can be used in coatings, fibrous fillers, dyed polymer organic compounds, etc., to solve problems such as market confusion, and achieve good performance stability, good storage stability, and good dispersion effect. Effect

Inactive Publication Date: 2014-01-22
天成高新纳米复合材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

bring great confusion to an orderly market

Method used

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  • Preparation method of special-purpose nanometer modifier of water-based coating
  • Preparation method of special-purpose nanometer modifier of water-based coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Embodiment 1: A certain amount of nano-calcium carbonate powder meeting the above requirements is made into a slurry with a mass fraction of 15%, put into a constant temperature water bath for heating, and after reaching a predetermined temperature of 60°C, the Under the stirring speed, slowly add the prepared 1.2% modifier into the slurry within 5 minutes. After stirring for 0.5 hours, cool the modified slurry to room temperature, put it in a container, and seal it for storage.

Embodiment 2

[0038] Embodiment 2: A certain amount of nano-calcium carbonate powder meeting the above requirements is made into a slurry with a mass fraction of 20%, put into a constant temperature water bath for heating, and after reaching a predetermined temperature of 65°C, the slurry is heated at 300 rpm. Under the stirring speed, slowly add the prepared modifier with a ratio of 1.5% into the slurry within 5 minutes. After stirring for 1 hour, cool the modified slurry to room temperature, put it in a container, and seal it for storage.

Embodiment 3

[0039] Embodiment 3: A certain amount of nano-calcium carbonate powder meeting the above requirements is made into a slurry with a mass fraction of 25%, put into a constant temperature water bath for heating, and after reaching a predetermined temperature of 70°C, at a speed of 300 revolutions per minute Under the stirring speed, slowly add the prepared modifier with a ratio of 1.8% into the slurry within 5 minutes. After stirring for 1.5 hours, cool the modified slurry to room temperature, put it in a container, and seal it for storage.

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Abstract

The invention discloses a preparation method of a special-purpose nanometer modifier of water-based coating, which belongs to the fields of chemical engineering and fine chemical engineering, and relates to a preparation method of a nanometer modifier added into water-based coating. The preparation method comprises the following steps of preparing nanometer calcium carbonate powder into a sizing agent with mass fraction of 10%-35%; placing the sizing agent into a constant-temperature water-bath slot for heating; slowly adding the prepared modifying agent of a certain proportion into the sizing agent within 5 minutes under a certain stirring speed after a predetermined temperature is reached. After beings stirred for certain time, the modified serous fluid is filled into a container for sealing and storing after being cooled to the room temperature. The preparation method disclosed by the invention has the beneficial effect that the modifier disclosed by the invention is added into a water-based coating formula system, so that a difficult problem that the nanometer calcium carbonate powder is not easy to disperse and easy to unite in the coating formula is successfully solved and dust pollution is reduced; after replacing titanium dioxide according to a proportion, contrast ratio and covering power of the material are improved, washing resistance is obviously strengthened, and fineness of emulsion paint is high; moreover, storage performance is excellent and sedimentation is not easy.

Description

technical field [0001] The invention belongs to the fields of chemical engineering and fine chemical industry, and in particular relates to a preparation method of a nano-scale modifier added to water-based coatings during production. Background technique [0002] Nano-calcium carbonate refers to ultra-fine powder calcium carbonate with a particle size of less than 100nm, including ultra-fine and ultra-fine calcium carbonate, which has the unique surface effect, volume effect, and macroscopic quantum tunneling effect of nanoparticles. Its specific surface area is very large, resulting in its high surface energy. Compared with conventional materials, nano-calcium carbonate has obvious advantages in many aspects due to its unique functions, and it has excellent performance in improving the strength, toughness, dimensional stability, thermal performance, and light stability of products. performance, can replace some expensive fillers and additives, reduce the amount of resin u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/02C09C3/10C09D7/12C09D5/02C09D125/14
Inventor 刘忠甫李玲张楠奇
Owner 天成高新纳米复合材料有限公司
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