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Water-based coating adopting high-performance water-based acrylic acid modified polyurethane, and preparation method and preparation device thereof

A water-based acrylic and water-based paint technology, applied in polyurea/polyurethane coatings, fire-retardant coatings, chemical instruments and methods, etc., can solve the problem that water-based coatings do not have intumescent flame retardancy, can not better ensure the quality of coatings, and the weight of raw materials. To solve problems such as missing points, it can achieve the effect of good fire resistance, good expansion and flame retardancy, and easy operation.

Inactive Publication Date: 2020-04-03
QINGYUAN HAOYU CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the water-based paint prepared by the above-mentioned technology does not have intumescent flame retardancy, and cannot be applied to special occasions. The equipment used to prepare the water-based paint, when feeding, the liquid raw material is easy to mix with the powdery raw material at the feeding port, which is easy to cause The lack of weight components of raw materials cannot better guarantee the quality of coatings

Method used

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  • Water-based coating adopting high-performance water-based acrylic acid modified polyurethane, and preparation method and preparation device thereof
  • Water-based coating adopting high-performance water-based acrylic acid modified polyurethane, and preparation method and preparation device thereof
  • Water-based coating adopting high-performance water-based acrylic acid modified polyurethane, and preparation method and preparation device thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0044] (1) Preparation of polyurethane prepolymer: Add macromolecular polyols and small molecular hydrophilic compounds into a four-neck flask, stir evenly, heat up to 90-100°C for vacuum dehydration, cool down to 60°C after dehydration, and then add diisocyanate , and the catalyst was added dropwise, and the temperature was raised to 75°C to keep warm for reaction;

[0045] (2) Preparation of acrylic acid monomer mixture: mix acrylic acid monomer and oil-soluble initiator and stir evenly;

[0046] (3) Preparation of polyvinyl alcohol aqueous solution: add polyvinyl alcohol into deionized water, heat up to 80-90°C and stir until completely dissolved;

[0047] (4) Preparation of polyvinyl alcohol-modified water-based polyurethane-acrylate emulsion: add the prepared acrylic monomer mixture to the polyurethane prepolymer, stir evenly, then add polyvinyl alcohol aqueous solution, and stir quickly to make the prepolymer uniform Disperse, add a neutralizing agent, heat up to 70°C a...

Embodiment 1

[0051] The water-based paint using high-performance water-based acrylic-modified polyurethane provided in this example is made of the following components in parts by weight: 10 parts of water-based acrylic-modified polyurethane resin emulsion, 5 parts of self-crosslinking curing agent, defoaming 4 parts of agent, 1 part of thickener, 0.2 parts of leveling agent, 6 parts of filler, 15 parts of deionized water and 5 parts of expansion agent.

[0052] Wherein, the water-based acrylic modified polyurethane resin emulsion is prepared by the following components and steps: 20 parts of diisocyanate, 100 parts of macromolecular polyol, 2 parts of small molecule hydrophilic compound, 1 part of catalyst, acrylic monomer 100 parts, 1 part of oil-soluble initiator, 60 parts of polyvinyl alcohol, 100 parts of deionized water, 1 part of neutralizer;

[0053] Its preparation method is:

[0054] (1) Preparation of polyurethane prepolymer: Add macromolecular polyols and small molecular hydro...

Embodiment 2

[0072] The water-based paint, preparation method and equipment provided by this embodiment using high-performance water-based acrylic modified polyurethane are basically the same as in Example 1, except that:

[0073] A water-based paint using high-performance water-based acrylic-modified polyurethane provided in this embodiment is made of the following components in parts by weight: 50 parts of water-based acrylic-modified polyurethane resin emulsion, 14 parts of self-crosslinking curing agent, 7 parts of defoamer, 7 parts of thickener, 6 parts of leveling agent, 19 parts of filler, 25 parts of deionized water and 7 parts of expansion agent.

[0074] Wherein, the water-based acrylic modified polyurethane resin emulsion is prepared by the following components and steps: 30 parts of diisocyanate, 300 parts of macromolecular polyol, 5 parts of small molecule hydrophilic compound, 3 parts of catalyst, acrylic monomer 300 parts, 3 parts of oil-soluble initiator, 120 parts of polyv...

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Abstract

The invention discloses a water-based coating adopting high-performance water-based acrylic acid modified polyurethane. The coating is prepared from, by weight, 10-65 parts of a water-based acrylic acid modified polyurethane resin emulsion, 5-15 parts of a self-crosslinking curing agent, 4-8 parts of an antifoaming agent, 1-8 parts of a thickener, 0.2-7 parts of a leveling agent, 6-20 parts of a filler, 15-30 parts of deionized water and 5-10 parts of an expanding agent. The invention also discloses a preparation method and a preparation device of the water-based coating. The water-based coating adopting high-performance water-based acrylic acid modified polyurethane, and the preparation method and the preparation device thereof are simultaneously improved, so the coating has intumescent flame retardance, the use accuracy of raw materials can be guaranteed, the product quality is guaranteed, and the operation of a user is facilitated.

Description

technical field [0001] The invention relates to the field of water-based paint, in particular to a water-based paint using high-performance water-based acrylic modified polyurethane, a preparation method and equipment. Background technique [0002] With the rapid development of society, a single polyurethane material can no longer meet people's functional needs. [0003] Compared with the Chinese patent CN201910646678.X, which discloses an acrylate-modified polyurethane environmental protection waterproof coating and its preparation method, it is recorded that: its preparation raw materials include: 10-65 parts of water-based acrylate-modified polyurethane emulsion; self-crosslinking type curing 5-15 parts of agent; 4-8 parts of defoamer; 1-8 parts of thickener; 0.2-7 parts of leveling agent; 6-20 parts of filler; 15-30 parts of deionized water; Material ratio Weigh 10-65 parts of water-based acrylate modified polyurethane emulsion, 5-15 parts of self-crosslinking curing ag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/14C09D5/18C09D7/61C09D7/63B01F7/18B01F15/02
CPCC09D175/14C09D5/185C08L2201/02C08K2003/323B01F27/191B01F27/90B01F35/717C08K3/32C08K5/34922C08K5/053
Inventor 郭逍遥郭伟杰汤汉良罗晖李桂琴刘其平赖浩城
Owner QINGYUAN HAOYU CHEM TECH