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Solvent-free glazed finish-coat paint and preparation method thereof

A solvent-free, topcoat technology, used in biocide-containing paints, coatings, antifouling/underwater coatings, etc., can solve the problems of poor color weather resistance, insufficient polishing mirror effect, etc., to achieve high gloss and fullness The effect of improving the mirror effect of imitation stone polishing, excellent weather resistance and bending flexibility

Inactive Publication Date: 2020-01-21
亚士创能新材料(滁州)有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But it also exposes the pain points of imitation stone products such as insufficient polished mirror effect and poor weather resistance and durability of color.

Method used

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  • Solvent-free glazed finish-coat paint and preparation method thereof
  • Solvent-free glazed finish-coat paint and preparation method thereof
  • Solvent-free glazed finish-coat paint and preparation method thereof

Examples

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Comparison scheme
Effect test

preparation example Construction

[0043] Another aspect of the present invention provides the preparation method of the solvent-free glaze type finish paint described in any one of the above embodiments, including:

[0044] S10, preparation of mixed modified TDI prepolymer mixture: add solvent-free TDI prepolymer into the container, disperse at a medium speed of 500-800r / min, and add hydrogenated epoxy resin, coagent, defoaming agent in sequence agent, dispersing wetting agent and nano fumed silicon oxide, when adding nano fumed silicon oxide, adjust the rotation speed to high speed 800-1000r / min, disperse for 15-25 minutes, and then disperse at low speed 300-500r / min for 3-8min to obtain The mixed modified TDI prepolymer mixture with a viscosity of 5000-10000mpa.s;

[0045] S20, the preparation of the solvent-free glaze type finish paint, take the mixed modified TDI prepolymer mixture and the adduct of alicyclic amine according to the epoxy equivalent in the mixed modified TDI prepolymer mixture and the addit...

Embodiment 1

[0049] Provide a solvent-free glaze type finish, which is synthesized by mixing a modified TDI prepolymer mixture and an alicyclic amine adduct, the components contained in the mixed modified TDI prepolymer mixture and each component The weight is (based on the total weight of 100g):

[0050] TDI polyisocyanate prepolymer with blocked isocyanate 18.0

[0051]

[0052] Concrete preparation steps are:

[0053] S10, add TDI polyisocyanate prepolymer containing blocked isocyanate and hydrogenated epoxy resin into the container, and add coagent, defoamer, dispersing and wetting When adding nano fumed silica, adjust the speed of the disperser to a high speed of 800-1000r / min, disperse for 20 minutes and then disperse at a speed of 300-500r / min for 5 minutes to obtain a mixed modified TDI prepolymer body mixture;

[0054] S20, during construction and application, the ratio of the epoxy equivalent in the mixed modified TDI prepolymer mixture to the active hydrogen equivalent in ...

Embodiment 2

[0069] Provide a solvent-free glaze type finish, which is synthesized by mixing a modified TDI prepolymer mixture and an alicyclic amine adduct, the components contained in the mixed modified TDI prepolymer mixture and each component The weight is (based on the total weight of 100g):

[0070] TDI polyisocyanate prepolymer with blocked isocyanate 22.0

[0071]

[0072] Concrete preparation steps are:

[0073] S10, add TDI polyisocyanate prepolymer containing blocked isocyanate and hydrogenated epoxy resin into the container, and add coagent, defoaming agent 1, defoaming Agent 2, dispersing wetting agent and nano fumed silica, when adding nano fumed silica, adjust the speed of the disperser to a high speed of 800-1000r / min, disperse for 20 minutes, and then disperse at a speed of 300-500r / min for 5 minutes. Mixed modified TDI prepolymer mixture;

[0074] S20, during construction and application, the ratio of the epoxy equivalent in the mixed modified TDI prepolymer mixture...

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Abstract

The invention provides a solvent-free glazed finish-coat paint and a preparation method thereof. The solvent-free glazed finish-coat paint is prepared from a mixed modified TDI prepolymer mixture andan alicyclic amine adduct according to an epoxy equivalent to active hydrogen equivalent ratio of 1:(1-1.1). The mixed modified TDI prepolymer mixture is prepared from one or more of a solvent-free TDI prepolymer, hydrogenated epoxy resin, an active auxiliary agent, a defoaming agent, a dispersing wetting agent and nano gas-phase silicon oxide. The solvent-free glazed finish-coat paint can form acompact and full transparent film after construction, can provide better glossiness and fullness, improves the stone-like polishing mirror surface effect, can also improve the excellent durable protection performance of a formed facing sheet, and overcomes the defects in the prior art.

Description

technical field [0001] The invention relates to the technical field of coating, and more specifically, relates to a solvent-free glaze type finish paint and a preparation method of the solvent-free glaze type finish paint. Background technique [0002] As a high-grade building decoration material, marble is widely used in indoor and outdoor decoration design, curtain wall decoration and public facilities construction because of its natural pattern, high hardness, wear resistance, good durability and calm and atmospheric decorative effect. [0003] However, due to its high cost, heavy self-weight, too large gap when the stone is butted, it is difficult to cut, seamless splicing cannot be achieved, insufficient elasticity, and cracks will occur in case of impact, which will easily cause construction difficulties, high-altitude drop and other hazards , and the radioactive substances it contains are likely to cause hidden dangers such as radiation to the human body. Therefore, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D175/04C09D7/61C09D5/16
CPCC08K2201/011C08L2201/10C09D5/1687C09D163/00C08L75/04C08K3/36
Inventor 王鹏徐志新李金钟
Owner 亚士创能新材料(滁州)有限公司
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