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Polyaspartic acid ester protective paint for landscape prop and preparation method thereof

An aspartic acid ester and protective coating technology, applied in the field of polyurea, can solve the problems affecting the aesthetic effect of landscape props, inflection points, difficult spraying of nodes, difficult operation of spray gun spraying, etc., and achieves excellent UV resistance and physical and mechanical properties. Excellent, long gel time results

Inactive Publication Date: 2014-05-21
大连怿文新材料科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These protective materials have the following disadvantages: 1. Insufficient toughness, easy to crack under impact; 2. The system contains organic solvents, too many volatile substances, which are harmful to the human body; 3. Multiple processes must be used for application, with long cycle and high efficiency Low
[0004] However, the current two-component spraying polyurea gel speed is too fast, sometimes local pinholes will appear during the spraying process, and it is difficult to spray the inflection points and nodes, which affects the aesthetic effect of landscape props
And when spraying small or complex structure props, spray gun spraying is not easy to operate, and it will also cause waste of polyurea materials

Method used

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  • Polyaspartic acid ester protective paint for landscape prop and preparation method thereof
  • Polyaspartic acid ester protective paint for landscape prop and preparation method thereof
  • Polyaspartic acid ester protective paint for landscape prop and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] This embodiment discloses a polyaspartic ester protective coating for landscape props, which consists of A component and B component:

[0047] A component is:

[0048] Hexamethylene diisocyanate biuret 50.3 parts

[0049] Polyoxypropylene glycol 49.6 parts

[0050] Organic mercury catalyst 0.1 parts

[0051] Group B is divided into:

[0052]

[0053] When in use, the mass ratio of the A component to the B component is 1:1.

[0054] The preparation method of polyaspartic acid ester protective coating for present embodiment landscape props is as follows:

[0055] A component:

[0056] Add a certain amount of polyoxypropylene glycol into the container, stir the liquid material at a low speed (100-300r / min) for 5 minutes, heat it to 110-120°C, turn on the vacuum pump, the vacuum degree is -0.1-0.08MPa, the vacuum Dehydration for 2 hours to remove a small amount of water contained in the raw material, the moisture content must be below 0.3‰, and cooled to a liquid m...

Embodiment 2

[0064] This embodiment discloses a polyaspartic ester protective coating for landscape props, which consists of A component and B component:

[0065] A component is:

[0066] 62.5 parts of isophorone diisocyanate

[0067] Polytetrahydrofuran glycol 37.5 parts

[0068] Group B is divided into:

[0069]

[0070] When in use, the mass ratio of the A component to the B component is 1:1.

[0071] The preparation method of polyaspartic acid ester protective coating for present embodiment landscape props is as follows:

[0072] A component:

[0073] Add a certain amount of polytetrahydrofuran glycol into the container, stir the liquid material at a low speed (100-300r / min) for 5 minutes, heat to 110-120°C, turn on the vacuum pump, the vacuum degree is -0.1-0.08MPa, vacuum dehydration 2h, remove a small amount of water contained in the raw material, check the water content to be below 0.3‰, and cool until the temperature of the liquid material is about 40°C. Add the measured ...

Embodiment 3

[0081] This embodiment discloses a polyaspartic ester protective coating for landscape props, which consists of A component and B component:

[0082] A component is:

[0083] 4,4'-Dicyclohexylmethane diisocyanate: 59.8 parts

[0084] Polyoxypropylene trihydric alcohol: 40.2 parts

[0085] Group B is divided into:

[0086]

[0087] When in use, the mass ratio of the A component to the B component is 1:1.

[0088] The preparation method of polyaspartic acid ester protective coating for present embodiment landscape props is as follows:

[0089] A component:

[0090] Add a certain amount of polyoxypropylene trihydric alcohol into the container, stir the liquid material at a low speed (100~300r / min) for 5 minutes, heat it to 110~120°C, turn on the vacuum pump, the vacuum degree is -0.1~-0.08MPa, the vacuum Dehydration for 2 hours to remove a small amount of water contained in the raw material, the moisture content must be below 0.3‰, and cooled to a liquid material temperat...

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Abstract

The invention provides a polyaspartic acid ester protective paint for a landscape prop and a preparation method of the polyaspartic acid ester protective paint. The polyaspartic acid ester protective paint for the landscape prop comprises the following ingredients in parts by weight: a component A consisting of 40-70 parts of aliphatic isocyanate, 30-50 parts of polyether polyol and 0-0.2 part of a catalyst, and a component B consisting of 40-60 parts of polyaspartic acid resin, 20-40 parts of a chain extender, 0-15 parts of a plasticizer, 5-20 parts of fillers, 0.5-2 parts of a pigment and 1.9-9 parts of an assisting agent, wherein the mass ratio of the component A to the component B is (0.5-2):1. The polyaspartic acid ester protective paint for the landscape prop has a long gelation time and can meet the requirements of manual blade coating or brush coating. The invention also discloses the preparation method of the polyaspartic acid ester protective paint for the landscape prop. The preparation method is simple and easy to implement and can realize industrial production of the polyaspartic acid ester protective paint for the landscape prop.

Description

technical field [0001] The invention relates to polyurea technology, in particular to a polyaspartic ester protective coating for landscape props and a preparation method thereof. Background technique [0002] In the field of landscape props production, FRP glass fiber reinforced plastic has been used. Due to its own brittleness, glass fiber must be added to FRP glass fiber reinforced plastic for reinforcement, which greatly reduces production efficiency, causes environmental pollution, and is not environmentally friendly; use GRC cement and GRG gypsum to Making props has high density and heavy weight, especially when making large props, it is very impractical, and there are disadvantages such as easy cracking, poor durability, poor weather resistance, surface defects and low production efficiency. In addition, some people use wood to make props, but wood processing and carving are difficult, and cause a lot of waste of resources, and the relative cost is higher. In additio...

Claims

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Application Information

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IPC IPC(8): C09D175/08C09D175/02C08G18/48
Inventor 彭瑞姜鹏波史立彤孙世刚
Owner 大连怿文新材料科技发展有限公司
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