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Aqueous single-component plastic coating, preparation method and application thereof

A plastic coating, one-component technology, used in the coating field to achieve good water resistance, good mechanical properties, and reduce the load on the environment

Inactive Publication Date: 2016-12-07
DAYANG RIYUE LIQUOR IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The hardness and gloss of the existing water-based plastic coating films need to be further improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The preparation method of the water-based one-component plastic paint of the present embodiment comprises the following specific steps:

[0034] Step 1: Add A81 aldehyde resin into a three-neck flask equipped with a condenser and stirring.

[0035] Step 2: Add TDI trimer, raise the temperature to 80° C., and react for 2 hours. Adding an appropriate amount of catalyst dibutyltin dilaurate while adding the TDI trimer can effectively shorten the reaction time.

[0036] Step 3, adding isopropyl titanate to continue the reaction for 2 h.

[0037] In step 4, the temperature is lowered to below 60°C and the material is discharged to obtain an interface adhesion promoter. The mass ratio of isopropyl titanate, TDI trimer and A81 aldehyde resin added in the above steps is 4:2:1. The interfacial adhesion promoter prepared by adding metal organic matter, polyisocyanate and hydroxyl-containing oligomer at this mass ratio is the most stable.

[0038] Step 5, 20 parts by weight of c...

Embodiment 2

[0041] The preparation method of the water-based one-component plastic paint of the present embodiment comprises the following specific steps:

[0042] Step 1, adding solid hydroxy acrylic resin into a three-neck flask equipped with a condenser and stirring.

[0043] Step 2: Add TDI-TMP adduct, raise the temperature to 80° C., and react for 2 hours.

[0044] Step 3, adding aluminum isopropoxide to continue the reaction for 2 h.

[0045] In step 4, the temperature is lowered to below 60°C and the material is discharged to obtain an interface adhesion promoter. The mass ratio of aluminum isopropoxide, TDI-TMP adduct and solid hydroxyl acrylic resin added in the above steps is 4:2:1.

[0046] Step five, with 35 parts by weight of titanium white paste, 5 parts by weight of barium sulfate, 100 parts by weight of carboxyl-containing anionic water-based acrylic modified polyurethane resin, 8 parts by weight of auxiliary agents, 3 parts by weight of interfacial adhesion promoter an...

Embodiment 3

[0049] The preparation method of the water-based one-component plastic paint of the present embodiment comprises the following specific steps:

[0050] Step 1, epoxy resin is added in the there-necked flask with condenser and stirring.

[0051] Step 2: Add biuret N75, heat up to 80°C, and react for 2 hours.

[0052] Step 3, adding zirconate to continue the reaction for 2h.

[0053] In step 4, the temperature is lowered to below 60°C and the material is discharged to obtain an interface adhesion promoter. The mass ratio of zirconate, biuret N75 and epoxy resin added in the above steps is 4:2:1.

[0054] Step five, with 33 parts by weight of phthalocyanine blue syrup, 100 parts by weight of carboxyl-containing anionic water-based fluorine-modified polyurethane resin, 10 parts by weight of auxiliary agents, 3 parts by weight of interfacial adhesion promoter and 20 parts by weight of Deionized water was put into a stainless steel cylinder for stirring and dispersing, the rotati...

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Abstract

The invention relates to an aqueous single-component plastic coating, a preparation method and an application thereof. The coating includes, by weight, 90-110 parts of anionic aqueous resin containing a carboxyl group, 15-40 parts of a waterproof pigment, 7-12 parts of an additive, 2-4 parts of an interface adhesion improver, and 15-25 parts of deionized water, wherein the interface adhesion improver is prepared through a reaction among a metal organic substance, polyisocyanate and an oligomer containing a hydroxyl group. The aqueous single-component plastic coating has very strong interface adhesion force with a non-crystal plastic base material.

Description

technical field [0001] The invention relates to a water-based one-component coating, a preparation method of the coating, and an application of the coating, which belong to the technical field of coatings. Background technique [0002] With people's increasing emphasis on environmental protection and energy, countries all over the world have enacted or are enacting increasingly strict laws and regulations to strictly limit the emission of VOC in coatings. In order to adapt to the transformation of the economic structure and the increasingly serious environmental problems, our country clearly proposes to accelerate the development of high-performance, energy-saving, functional coatings and supporting raw materials, especially the development of water-based automotive paints and water-based plastic coatings. Since various plastics and more and more derived compound products are widely used in people's daily life and industrial consumer goods industries, including major applica...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D175/14C09D7/12C08G18/54C08G18/62C08G18/66C08G18/32C08G18/58C08G18/68
Inventor 胡州平袁立新
Owner DAYANG RIYUE LIQUOR IND CO LTD
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