阅读说明：本技术 一种液晶包装容器内壁表面处理配方 (Liquid crystal packaging container inner wall surface treatment formula ) 是由 董兴玉 刘民 于 2021-08-26 设计创作，主要内容包括：本发明涉及一种液晶包装容器内壁表面处理配方,按照体积含量计算包括：硝酸,19-29份；磺酸,1-5份；二磷酸,1-3份；单丁醚,1-5份；表面活性剂,1份；吸附剂,5份；水,62份。本发明提出的配方在实际表面处理中能够使金属制容器内壁形成保护膜,增加内壁的耐腐蚀性及减少基体元素的析出,并且该发明配方原料易得、操作简单、加工配方易于实现。(The invention relates to a surface treatment formula for the inner wall of a liquid crystal packaging container, which comprises the following components in percentage by volume: 19-29 parts of nitric acid; 1-5 parts of sulfonic acid; 1-3 parts of diphosphonic acid; 1-5 parts of monobutyl ether; 1 part of surfactant; 5 parts of adsorbent; 62 parts of water. The formula provided by the invention can form a protective film on the inner wall of a metal container in the actual surface treatment, the corrosion resistance of the inner wall is increased, the precipitation of matrix elements is reduced, and the formula has the advantages of easily available raw materials, simple operation and easy realization of a processing formula.)

1. The formula for treating the surface of the inner wall of the liquid crystal packaging container is characterized by comprising the following components in percentage by volume:

19-29 parts of nitric acid;

1-5 parts of sulfonic acid;

1-3 parts of diphosphonic acid;

1-5 parts of monobutyl ether;

1 part of surfactant;

5 parts of adsorbent;

62 parts of water.

2. The liquid crystal packaging container inner wall surface treatment formula according to claim 1, wherein: the sulfonic acid was analytically pure grade and at a concentration of 65%.

3. The liquid crystal packaging container inner wall surface treatment formula according to claim 2, wherein: the surfactant is zeolite.

4. A preparation process of a liquid crystal packaging container inner wall surface treatment formula is characterized by comprising the following steps:

s1, preparing an acid-resistant and corrosion-resistant open container with a proper size, and calculating the volume required by each raw material according to the volume proportioning relation;

s2, pouring the calculated clean water with the corresponding volume into a container;

s3, slowly adding the calculated amount of nitric acid into the required water, and quickly stirring for heat dissipation;

s4, adding diphosphoric acid into the nitric acid solution when the temperature of the nitric acid solution is recovered to normal temperature, and uniformly stirring;

s5, adding sulfonic acid, monobutyl ether, other surfactants, adsorbents and the like into the solution, and uniformly stirring.

Technical Field

The invention relates to a surface treatment formula, in particular to a surface treatment formula for the inner wall of a liquid crystal packaging container.

Background

In recent years, liquid crystal materials used for liquid crystal display devices and the like are stored in metal packaging containers, but the inner walls of the metal packaging containers are easily corroded by materials contained therein, which affects the quality of the materials; with the increase of time, the base material elements of the metal packaging container can be separated out to generate new chemical changes, which is not beneficial to long-time storage and greatly shortens the service life of the storage container.

In order to meet the higher requirements of the liquid crystal industry on the packaging container, the inner wall of the liquid crystal packaging container needs to be specially treated, and the problems of reducing the precipitation amount of elements and increasing the corrosion resistance are needed to be solved.

Disclosure of Invention

In order to solve the above technical problems, the present invention provides a surface treatment formulation applied to the inner wall of a liquid crystal packaging container.

The technical scheme of the invention is as follows:

the formula for treating the surface of the inner wall of the liquid crystal packaging container is characterized by comprising the following components in percentage by volume:

19-29 parts of nitric acid;

1-5 parts of sulfonic acid;

1-3 parts of diphosphonic acid;

1-5 parts of monobutyl ether;

1 part of surfactant;

5 parts of adsorbent;

62 parts of water.

Further, the sulfonic acid was analytically pure grade and at a concentration of 65%.

Further, the surfactant is zeolite.

A preparation process of a liquid crystal packaging container inner wall surface treatment formula is characterized by comprising the following steps:

s1, preparing an acid-resistant and corrosion-resistant open container with a proper size, and calculating the volume required by each raw material according to the volume proportioning relation;

s2, pouring the calculated clean water with the corresponding volume into a container;

s3, slowly adding the calculated amount of nitric acid into the required water, and quickly stirring for heat dissipation;

s4, adding diphosphoric acid into the nitric acid solution when the temperature of the nitric acid solution is recovered to normal temperature, and uniformly stirring;

s5, adding sulfonic acid, monobutyl ether, other surfactants, adsorbents and the like into the solution, and uniformly stirring.

By the scheme, the invention at least has the following advantages:

the formula provided by the invention can form a protective film on the inner wall of a metal container in the actual surface treatment, the corrosion resistance of the inner wall is increased, the precipitation of matrix elements is reduced, and the formula has the advantages of easily available raw materials, simple operation and easy realization of a processing formula.

The foregoing is a summary of the present invention, and in order to provide a clear understanding of the technical means of the present invention and to be implemented in accordance with the present specification, the following is a detailed description of the preferred embodiments of the present invention.

Detailed Description

The following examples are given to further illustrate the embodiments of the present invention. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

Example 1

Firstly, preparing a 100L open container with acid resistance and corrosion resistance; calculating the volume required by each raw material according to the volume ratio (19L of nitric acid, 5L of sulfonic acid, 3L of diphosphonic acid, 5L of monobutyl ether, 1L of zeolite, 62L of water and 5L of other adsorbents); filling the calculated corresponding volume of water 62L into the container; slowly adding 19L of nitric acid into the required water, and quickly stirring for heat dissipation; when the temperature of the nitric acid solution is recovered to the normal temperature, adding 3L of diphosphoric acid into the solution, and uniformly stirring; and adding 5L of sulfonic acid, 5L of monobutyl ether, 1L of other surfactant, 5L of adsorbent and the like into the solution, and uniformly stirring to obtain the surface treatment solution for the inner wall of the packaging container.

Example 2

Firstly, preparing a 100L open container with acid resistance and corrosion resistance; calculating the volume required by each raw material according to the volume ratio (29L of nitric acid, 1L of sulfonic acid, 1L of diphosphonic acid, 1L of monobutyl ether, 1L of zeolite, 62L of water, 5L of other adsorbents); filling the calculated corresponding volume of water 62L into the container; slowly adding 29L of nitric acid into the required water, and quickly stirring for heat dissipation; when the temperature of the nitric acid solution is recovered to normal temperature, adding 1L of diphosphonic acid into the solution, and uniformly stirring; and adding 1L of sulfonic acid, 1L of monobutyl ether, 1L of other surfactants, 5L of adsorbent and the like into the solution, and uniformly stirring to obtain the surface treatment solution for the inner wall of the packaging container.

Example 3

Firstly, preparing a 100L open container with acid resistance and corrosion resistance; calculating the volume required by each raw material according to the volume ratio relationship (24L of nitric acid, 3L of sulfonic acid, 2L of diphosphonic acid, 3L of monobutyl ether, 1L of zeolite, 62L of water, 5L of other adsorbents); filling the calculated corresponding volume of water 62L into the container; slowly adding 24L of nitric acid into the required water, and quickly stirring for heat dissipation; when the temperature of the nitric acid solution is recovered to normal temperature, adding 2L of diphosphonic acid into the solution, and uniformly stirring; and adding 3L of sulfonic acid, 3L of monobutyl ether, 1L of other surfactant, 5L of adsorbent and the like into the solution, and uniformly stirring to obtain the surface treatment solution for the inner wall of the packaging container.

Example analysis:

injecting 1-level deionized water into the containers subjected to surface treatment in the embodiments 1, 2 and 3 respectively, standing for 72H, sampling and detecting the element content respectively after standing, and detecting that the precipitation amount of each element is less than 0.5 ppb;

the inner wall neutral salt spray test (120H) was performed on the surface-treated containers of examples 1, 2, and 3, and the surface of each of the surface-treated containers was not damaged.

From the above, the formulations of examples 1 to 3, using the surface treatment process of the liquid crystal packaging container, can form a dense protective film on the inner wall of the metal container, increase the corrosion resistance of the inner wall and reduce the precipitation of the matrix elements, thereby satisfying the high requirements of the liquid crystal industry on the internal environment of the packaging container.

The principle of the formula of the invention is as follows:

the nitric acid and diphosphonic acid solution passivates the inner wall surface of the metal container, and the precipitation of matrix metal elements is reduced. Cr and Ni on the surface of the metal container generate a very compact oxide film under the action of nitric acid with oxidizability, so that the corrosion rate of the metal container in an oxidizing medium is reduced, and the corrosion resistance of the inner wall of the metal container is improved.

The sulfonic acid, the surfactant and the like can remove dirt on the surface of the inner wall of the container, and provide guarantee for cleaning the inner wall of the metal container.

During surface treatment, ions in the solution can be adsorbed on the surface of the inner wall of the packaging container, so that the ions adsorbed on the wall of the container and the ions separated out from the container can quickly react, and the surface treatment speed is improved.

Therefore, the invention has the following beneficial effects:

the formula provided by the invention can form a protective film on the inner wall of a metal container in the actual surface treatment, the corrosion resistance of the inner wall is increased, the precipitation of matrix elements is reduced, and the formula has the advantages of easily available raw materials, simple operation and easy realization of a processing formula.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, it should be noted that, for those skilled in the art, many modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.