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Mixed liquid crystal production method

A technology of mixing liquid crystals and liquid crystals, applied in liquid crystal materials, chemical instruments and methods, etc., can solve the problems of poor product quality stability, large weighing deviation, low production efficiency, etc., to avoid adverse effects, improve quality, and improve work efficiency. Effect

Inactive Publication Date: 2019-06-07
FUYANG XINYIHUA MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The invention provides a method for producing mixed liquid crystals, which solves the problems of low production efficiency, large weighing deviation, small production batches, and poor product quality stability by adopting small glassware devices and intermittent manual operation production methods when producing mixed liquid crystals

Method used

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Embodiment 1

[0022] This embodiment provides a method for producing mixed liquid crystals, such as figure 1 mentioned, including:

[0023] Step 101: Add at least two monomeric liquid crystal solutions, or at least one monomeric liquid crystal solution and at least one monomeric liquid crystal, to the production device to obtain a mixed liquid crystal liquid according to the ratio of the mixed liquid crystal formula. The monomeric liquid crystal solution includes monomeric liquid crystals Liquid crystals and organic solvents;

[0024] Mixed liquid crystal refers to that due to the high performance requirements of liquid crystal materials in practical applications, a single liquid crystal material often cannot meet these requirements. Therefore, two or more liquid crystal materials must be uniformly mixed in according to different display methods and related uses. Together, the common mixed liquid crystals that make up the mixed liquid crystal nematic mixed system and cholesteric mixed syst...

Embodiment 2

[0060] In this embodiment, taking mixed liquid crystal A, mixed liquid crystal B, and mixed liquid crystal C as examples, the production process of mixed liquid crystal A, mixed liquid crystal B, and mixed liquid crystal C is provided:

[0061] Table 1

[0062]

[0063]

[0064] As shown in the above Table 1, it is the composition of each monomer liquid crystal solution in the mixed liquid crystal A, mixed liquid crystal B, and mixed liquid crystal C provided in the second embodiment of the present invention.

[0065] (1) The production process for producing 100 kg of mixed liquid crystal A, such as figure 2 shown, including:

[0066] Step 201, according to the composition of each monomer liquid crystal solution in the mixed liquid crystal A in Table 1, the four monomer liquid crystals CCPU-3-F, CC-3-V, CC-3-V1 and PGP-1-2V are respectively mixed with the corresponding Organic solvent: a mixed organic solvent of petroleum ether and toluene with a mass ratio of 4:1, pe...

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Abstract

The invention discloses a mixed liquid crystal production method, and solves the problems that in the prior art, in mixed crystal production, small glass containers are used, an intermittent artificial production mode is adopted, the production efficiency is low, the measurement error is large, the production yield is small, and the product quality is not stable. The method comprises following steps: according to a mixed crystal formula, adding at least two monomer liquid crystal solutions (or at least one monomer liquid crystal solution and at least one monomer liquid crystal) into a production device to obtain a mixed liquid crystal solution, wherein the monomer liquid crystal solution comprises monomer liquid crystal and an organic solvent; filling inert gas into the production device,controlling the temperature, stirring the mixed liquid crystal solution; after stirring, distilling the mixed liquid crystal solution in vacuum so as to separate the organic solvent; after distillation, adding an adsorbent into the distilled mixed liquid crystal solution, stirring the solution at a controlled temperature, after stirring, and filtering the mixed liquid crystal solution to separatethe adsorbent to obtain mixed liquid crystal. The quality of mixed liquid crystal is improved, and the production capacity of mixed liquid crystal is enhanced.

Description

technical field [0001] The invention relates to the field of flat display, in particular to a method for producing mixed liquid crystals. Background technique [0002] Liquid crystal display devices have the characteristics of low voltage drive, low power consumption, light weight, thin volume, large information capacity, and no pollution. They have been widely used in various display terminals. The maturity of liquid crystal display technology has promoted its application. The continuous expansion of the field has formed a huge market size. [0003] Liquid crystal display has formed a huge industry with its unique advantages, and it has also effectively promoted the liquid crystal material industry. In the next few years, the domestic market demand for mixed liquid crystal materials will reach more than 150 tons, and the output value will reach more than 900 million US dollars; the world market demand for mixed liquid crystal materials will reach more than 1,200 tons, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K19/42
Inventor 陈甚伟赵吉生王金甲
Owner FUYANG XINYIHUA MATERIAL TECH