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Hydrophobic coating liquid, and preparation method, coating method and application thereof

A technology of hydrophobic coating and coating method, applied in the direction of coating, etc., can solve the problems of not prolonging the anti-adhesion effect of products with viscosity, and achieve the effects of prolonging the non-stick failure time, avoiding adhesion, and avoiding volatilization

Active Publication Date: 2021-02-19
INNER MONGOLIA MENGNIU DAIRY IND (GRP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the hydrophobic coating solution in the prior art cannot prolong the anti-adhesion effect on viscous products well, so as to provide A kind of hydrophobic coating liquid with good anti-adhesion effect and its preparation and coating method

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  • Hydrophobic coating liquid, and preparation method, coating method and application thereof
  • Hydrophobic coating liquid, and preparation method, coating method and application thereof
  • Hydrophobic coating liquid, and preparation method, coating method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A kind of hydrophobic coating liquid, its raw material composition is as shown in table 1.

[0042] Table 1

[0043]

[0044] The silicon dioxide solution in the above table 1 is a mixed solution made by mixing 10wt% silicon dioxide and 90wt% ethanol, and the solid content of the silicon dioxide solution is 10%, that is, silicon dioxide is mixed with silicon dioxide. The content in the solution is 10%, and the particle size of the silicon dioxide is between 500nm and 2000nm. The ethanol in Table 1 and the ethanol in the silica solution are absolute ethanol with a concentration of 99.9%; the mass concentration of the acetic acid solution is 2%, and the solvent in the acetic acid solution is distilled water. That is, in this embodiment, the solid particle is silicon dioxide, the hydrophobic silane is polydimethylsiloxane, and the pH regulator is acetic acid.

[0045] Taking the hydrophobic coating solution with a solid content of 3% as an example, the ethanol with a ...

Embodiment 2

[0081] The difference between this example and Example 1 is that in this example, raw materials with different proportions are used for preparation, as shown in Table 3 below:

[0082] table 3

[0083] raw material Solid content 4% Solid content 4% Solid content 4% ethanol 58.92％ 58.44％ 57.92％ Silica solution 40％ 40％ 40％ Polydimethylsiloxane 1％ 1.5％ 2％ Acetic acid solution 0.08％ 0.06％ 0.08％

[0084] The three kinds of hydrophobic coating liquids with a solid content of 4% in the above table 3 are a kind of non-stick film obtained by coating three times respectively. The test results of the non-stick effect of the three kinds of non-stick film are the same, and the effect is as follows: The area is 10%, the contact angle is 150°, and the rolling angle is 5°; after standing still for 3 months, the non-stick effect has not failed; there is no powder falling (coating solid falling off) phenomenon.

Embodiment 3

[0086] The difference between this embodiment and Example 1 is that different types of raw materials of the hydrophobic coating liquid are used for preparation in this embodiment, as shown in Table 4 below:

[0087] Table 4

[0088]

[0089] The solid content of the corresponding solid particles in the above-mentioned solid particle solution is 10%. The solvent used in the solid particle solution is the same as the solvent type recorded in the corresponding numbering. The solvent of the pH regulator is distilled water. The above-mentioned solid particles in the hydrophobic coating liquid The solid content is 5%.

[0090] The above-mentioned hydrophobic coating liquid is a kind of non-stick cover film obtained by applying the same coating method in Example 1 for 3 times, and its non-stick effect is good, specifically:

[0091]The contact angle of No. 1 is 150°, the rolling angle is 3°, and the milk-stained area is 10%; after standing still for 3 months, the non-stick effect...

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Abstract

The invention relates to a hydrophobic coating liquid, and a preparation method, a coating method and an application thereof. The hydrophobic coating liquid comprises solid particles, hydrophobic silane, a pH regulator and a solvent, wherein the mass ratio of the solid particles to the hydrophobic silane is (1.5-6):1, the content of the solid particles in the hydrophobic coating liquid is 15% or less, and the pH value of the hydrophobic coating liquid is 6.8-7.2. According to the invention, the anti-adhesion effect in a viscous product can be improved, the anti-adhesion duration in the viscousproduct is effectively prolonged, and a long-acting non-stick effect is achieved.

Description

technical field [0001] The invention relates to the field of packaging, in particular to a hydrophobic coating liquid and a preparation and coating method thereof. Background technique [0002] Products with viscosity currently on the market include: yogurt in cups, yogurt in Tetra Pak packaging materials, cheese in cups, sauces in cups, etc. After these products are packaged with various packaging materials, due to the adhesion of the product itself, it sticks to the packaging. Therefore, when it is unpacked and eaten, it will always stick to the packaging materials, resulting in the contents of the package cannot be read. It is completely squeezed out, which makes it impossible to eat cleanly; and in the process of unpacking, there are also situations where the contents of the package are polluted and lead to waste, such as: yogurt, cheese or sauces and other cup-packed products are displayed on the unpacking When the lid is used, the products adhered to the lid are easil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/04C09D7/61C09D7/63
CPCC09D183/04C09D7/61C09D7/63C08K3/36C08K5/09
Inventor 王凤凯崇政侯英梁盛佳王震业
Owner INNER MONGOLIA MENGNIU DAIRY IND (GRP) CO LTD
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