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Water-soluble varnish and method of preparing the same

A water-based and varnish technology, applied in coatings, epoxy resin coatings, polyester coatings, etc., can solve problems affecting the leveling of the system, achieve the effects of controlling formulation costs, avoiding conflicts, and simplifying formulations

Active Publication Date: 2012-04-25
NIPPON PAINT CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the surface tension is low to a certain level (lower than 23DYNES / CM), it will affect the leveling of the system (long-wave leveling), especially when it is applied by brushing, it will bring other defects, such as brush marks and orange peel. and bubbles etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation Embodiment 1

[0038] Preparation Example 1: A water-based metal finish varnish comprises the following components:

[0039] Waterborne alkyd and acrylic blend 700 Gemini hydrocarbon surfactant of acetylenic diol type 8

[0040] AMP-95 1 coalescent 60

[0041] Thickener 5 Fluorocarbon Surfactant 1

[0042] Molecular grade defoamer 5 Hand feeling additive 10

[0043]Pure water 210

[0044] The manufacture process of this water-based metal finish varnish, the above-mentioned listed ingredients are operated as follows:

[0045] Put the water-based resin into the stirring tank and stir at a speed of 1200r / min; slowly add the pre-mixed acetylene glycol-based gemini hydrocarbon surfactant, film-forming aid, AMP-95 and 50 parts of pure water, Increase the rotation speed to 2000r / min until it is evenly stirred; then adjust the rotation speed to 1600r / min, and add the remaining ingredients one by one to obtain the water-based varnish.

preparation Embodiment 2

[0046] Preparation Example 2: A water-based wood semi-gloss varnish contains the following components:

[0047] Blend of acrylic and polyurethane 800 Gemini hydrocarbon surfactant of acetylenic diol 10

[0048] AMP-95 2 coalescent 50

[0049] thickener 6 matting agent 10

[0050] Fluorocarbon Surfactant 2 Hand Feel Auxiliary 15

[0051] Molecular defoamer 3 Pure water 102

[0052] The preparation process of this water-based varnish is the same as Preparation Example 1.

preparation Embodiment 3

[0053] Preparation Example 3: A water-based matt floor varnish contains the following components:

[0054] Copolymer of epoxy and polyurethane 750 Gemini hydrocarbon surfactant of acetylenic diol 10

[0055] AMP-95 2 coalescent 55

[0056] thickener 2 matting agent 20

[0057] Fluorocarbon Surfactant 2 Molecular Defoamer 5

[0058] Hand feeling aid 20 Pure water 104

[0059] Abrasion Agent 30

[0060] The preparation process of this water-based varnish is the same as Preparation Example 1.

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PUM

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Abstract

The present invention discloses a water-base varnish and a method for preparing the varnish. The water-base varnish is mainly composed of water-base resin, alkynyl-diol gemini hydrocarbon surfactant, fluorocarbon surfactant, molecular defoamer, pH regulator and pure water. The water-base varnish of the present invention mainly adopts the alkynyl-diol gemini hydrocarbon surfactant as wetting agentand the fluorocarbon surfactant as leveling agent to resolve wetting and leveling problems, on the basis, the molecular defoamer is added to resolve the defoaming problem, and finally, a coating film, the surface of which has no flaws in the wet state during construction, is formed.

Description

technical field [0001] The invention relates to a water-based varnish and a preparation method thereof. Background technique [0002] At present, water-based coatings are getting more and more attention in the coatings market. Compared with solvent-based coatings, they will not produce a large amount of volatile organic compounds (VOC) during production and construction, and will not produce some benzene-containing substances that are harmful to human health. organic matter. In addition to the traditional latex paint, the research and development of water-based varnish is also getting faster and faster, mainly used in wood, metal parts and so on. [0003] Water-based varnish is based on emulsion (water-based resin), water is the solvent, and water is the only continuous phase. The resin is not "dissolved" in water in molecular form, but dispersed in water in the form of "particles", so it is different from solvent-based varnishes. The system is different, it is not a "homo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D167/08C09D133/00C09D163/00C09D175/04C09D7/12C09D7/06C09D7/47
Inventor 贺丹丹吴雪萍金珂
Owner NIPPON PAINT CHINA