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Environment-friendly template paint and preparation method thereof

A stencil paint, an environmentally friendly technology, applied in the petroleum industry, lubricating compositions, etc., can solve the problems of short storage period, poor heat and alkali resistance, poor wear resistance, etc., achieve good storage stability, simple and convenient construction, The effect of improving appearance quality

Inactive Publication Date: 2019-04-05
SHANGHAI HUAYI FINE CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, most stencil paints contain aromatic solvents, which have a pungent smell and are toxic and harmful to the human body; and most stencil paints have low flash points and are hazardous chemicals. Therefore, during their transportation, maintenance, storage and use In the process, the relevant laws and regulations on hazardous chemicals must be strictly enforced, so that the application of stencil paint is limited; in addition, most of the stencil paints in the prior art are two-component stencil paints, and the two components need to be mixed evenly before use. Coated on the template, and there are also disadvantages such as poor wear resistance, poor heat and alkali resistance and short storage period

Method used

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  • Environment-friendly template paint and preparation method thereof
  • Environment-friendly template paint and preparation method thereof
  • Environment-friendly template paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-8

[0048] Embodiment 1-8 prepares environment-friendly template paint A1~A8

[0049] The formula of environment-friendly stencil paint is shown in Table 1.

[0050] Table 1 Formula of environment-friendly stencil paint

[0051]

[0052]

[0053] The preparation method of environment-friendly template paint comprises the following steps:

[0054] (1), at room temperature, add the environment-friendly solvent of formula quantity in reaction kettle;

[0055] (2) Under the condition of stirring, add the formula amount of polyisocyanate compound, polyhydroxy compound, catalyst and stabilizer to the reaction kettle in sequence, after stirring evenly, gradually increase the temperature to 85±5°C, and keep it at this temperature React for 4±1 hours, then cool down;

[0056] (3) Cool down to below 40°C, add the prescribed amount of water-removing agent, stir evenly, filter, after the foam is eliminated, pack, and obtain an environmentally friendly formwork paint.

Embodiment 9-17

[0059] Example 9-17 Environment-friendly stencil paint A1~A8 and the performance test of the stencil paint of Comparative Example 1

[0060] The solid content, heat storage stability and closed flash point of the environment-friendly stencil paint A1-A8 and the stencil paint A9 of Comparative Example 1 were tested, and the results are shown in Table 2.

[0061] Table 2 Performance comparison of environment-friendly stencil paint A1-A8 and stencil paint A9 of Comparative Example 1

[0062]

[0063] From the data in Table 2, it can be seen that the environmentally friendly stencil paints A1-A8 prepared in Examples 1-8 were stored at 50°C for 30 days and passed the thermal stability test. According to industry experience, it is equivalent to storing at room temperature for more than 1 year. The stencil paint of Comparative Example 1 can only be stored for 15 days. It can be seen that the environment-friendly stencil paint of the present invention has excellent thermal stabil...

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Abstract

The invention provides environment-friendly template paint which comprises, by weight, 20-40 parts of polyisocyanate compounds, 10-30 parts of polyhydroxy compounds, 40-60 parts of environment-friendly solvents, 0.05-0.5 part of catalysts, 0.01-0.2 part of stabilizers and 1-5 parts of water removal agents. The environment-friendly template paint has good storage stability, the storage life of thepaint can exceed one year at normal temperature, a flashing point of the paint is higher than 61 DEG C, and the paint can be stored and transported according to conventional chemicals, is packaged according to a single component and simple and convenient to construct, does not contain aromatic solvents and has great economic significance and environmental protection significance.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, relates to a formwork paint used in construction industry, in particular to an environment-friendly formwork paint and a preparation method thereof. Background technique [0002] Concrete formwork is an important auxiliary material in industrial and civil buildings, and its cost often accounts for 25% to 30% of the total cost of concrete projects. Concrete formwork used for construction usually requires surface treatment. At present, the surface treatment methods of domestic concrete formwork are mainly to directly brush waste engine / diesel oil or use melamine formaldehyde resin impregnated paper veneer. The use of waste engine / diesel oil will stain the surface of steel bars and components in the building, which is not conducive to the decoration and aesthetics of the concrete surface, and will also increase the cost; while the melamine formaldehyde resin impregnated paper veneer proces...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10N40/36C10N30/12
CPCC10M169/04C10M2201/085C10M2207/04C10M2207/283C10M2207/402C10M2209/102C10M2209/104C10M2209/105C10M2211/04C10M2215/14C10M2215/223C10M2215/226C10M2219/044C10M2227/083C10N2030/12C10N2040/36
Inventor 赵其中刘卫峰
Owner SHANGHAI HUAYI FINE CHEM CO LTD
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