Modifier for improving dispersity of pearlescent pigment in acrylic acid-series medium and application thereof

An acrylic and dispersive technology, applied in the field of modifiers for improving the dispersibility of pearlescent pigments in acrylic series media, can solve the problems of easy agglomeration and agglomeration, poor dispersibility and stability, etc. , the effect of shortening the dispersion time

Active Publication Date: 2014-12-24
河北欧克新型材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that pearlescent pigments are easy to condense into agglomerates in acrylic series media and have poor dispersion and stability, and provide a modifier that can improve the dispersibility of pearlescent pigments in acrylic series media and its application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1: get pearlescent pigment (structure: mica / TiO 2 ) 200 parts, at a stirring speed of 100 r / min, take 4 parts of hexanol, and evenly spray it on the surface of the pearlescent pigment within 15 minutes. product.

Embodiment 2

[0018] Embodiment 2: get pearlescent pigment (structure: mica / Fe 2 o 3 ) 400 parts, at a stirring speed of 100 r / min, take 8 parts of ethylene glycol, and spray it evenly on the surface of the pearlescent pigment within 15 minutes. product.

Embodiment 3

[0019] Embodiment 3: get pearlescent pigment (structure: mica / TiO 2 / Fe 2 o 3 ) 400 parts, at a stirring speed of 100 r / min, mix 4 parts of glycerin and 4 parts of ethanol, and spray it evenly on the surface of the pearlescent pigment within 20 minutes. The product is obtained by drying.

[0020] Dispersion evaluation method: drop acrylic series media on a glass plate, then add a small amount of pearlescent pigment treated with a modifier, and observe whether it can quickly disperse, and use the pearlescent pigment without modifier as a control experiment. Other experimental conditions are the same

[0021] .

[0022] Stability evaluation method: Prepare 100ml of 10% by mass acrylic acid series solution of the modified pearlescent pigment, after it is completely dispersed, leave it for 20 days, measure its sedimentation ratio (the ratio of the volume of the precipitated layer to the total volume of the solution), At the same time, the corresponding untreated pearlescent...

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PUM

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Abstract

The invention provides a modifier for improving the dispersity of a pearlescent pigment in an acrylic acid-series medium and an application thereof. The modifier is characterized in that: chained saturated alcohol with 2-12 carbon atoms is adopted, and can be monohydric alcohol, dihydric alcohol or trihydric alcohol. The modifier is uniformly sprayed onto the surface of the pearlescent pigment in the using amount of 0.1-5 percent by weight, and is dried. The pearlescent pigment treated with the modifier can be quickly dispersed in the acrylic acid-series medium, so that dispersing time is shortened, the stirring speed during dispersion can be lowered, and the pearlescent pigment shows original pearlescent color and luster; and meanwhile, the stability of the modified pearlescent pigment in the acrylic acid-series medium is much higher than that of an untreated pearlescent pigment.

Description

technical field [0001] The invention relates to a modifier for improving the dispersibility of pearlescent pigments in acrylic series media and its application. Background technique [0002] Pearlescent pigment is a kind of extremely beautiful pearl luster and metallic luster pigment. It is composed of several metal oxide thin layers covering mica. Changing the metal oxide thin layer can produce different pearlescent effects. It is non-toxic, Non-conductive, heat-resistant, light-resistant, chemical-resistant and other excellent properties have been developed rapidly, so they are widely used in coatings, plastics, leather, rubber, ink and paper printing, textile printing and dyeing, cosmetics and other fields. With the widespread application of pigments and the need for environmental protection, the surface properties of pigments are gradually developing towards water solubility. The acrylic series water-soluble coatings have the advantages of high stability, strong adhesio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09C3/08C09D5/36C08K9/04
Inventor 郭俊怀寇立欣谭丽颖
Owner 河北欧克新型材料股份有限公司
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