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Organosilicon modified tert-fluoro emulsion and preparation of luminescent coating with the emulsion as base material

A tertiary fluorine emulsion and organosilicon technology, applied in the field of coatings, can solve the problems of poor performance of modified products, and achieve the effects of low cost, safe use and good marking effect.

Inactive Publication Date: 2009-06-24
NORTHWEST NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The blending method is relatively simple and easy to implement, but the performance of the modified product is not as good as that of the chemical modification method

Method used

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  • Organosilicon modified tert-fluoro emulsion and preparation of luminescent coating with the emulsion as base material
  • Organosilicon modified tert-fluoro emulsion and preparation of luminescent coating with the emulsion as base material
  • Organosilicon modified tert-fluoro emulsion and preparation of luminescent coating with the emulsion as base material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] To prepare the emulsion:

[0058] a. mixing and stirring the monomer with water and an emulsifier to form an emulsion, and preparing a core monomer pre-emulsion and a shell monomer pre-emulsion;

[0059] b. In a reactor equipped with a stirrer, a reflux condenser, a constant-speed dripping peristaltic pump, a thermometer and an external heating jacket, add potassium persulfate solution, core layer monomer pre-emulsion and shell layer monomer pre-emulsion respectively solution into the reaction kettle, the reaction temperature is 75°C, and the dropping time is 2.5 to 4 hours. After adding the potassium sulfate solution and the monomer pre-emulsion liquid dropwise, add tert-butyl hydroperoxide-formaldehyde sulfoxylate sodium, After the addition, continue to keep warm and stir for 3-5 hours. After the reaction is completed, cool down to 20-40°C and discharge to obtain an emulsion.

[0060] Above-mentioned emulsion raw material content (weight percentage) is as follows:

...

Embodiment 2

[0094] a. mixing and stirring the monomer with water and an emulsifier to form an emulsion, and preparing a core monomer pre-emulsion and a shell monomer pre-emulsion;

[0095] b. In a reactor equipped with a stirrer, a reflux condenser, a constant-speed dripping peristaltic pump, a thermometer and an external heating jacket, add potassium persulfate solution, core layer monomer pre-emulsion and shell layer monomer pre-emulsion respectively liquid into the reaction kettle, the reaction temperature is 80°C, and the dropping time is 3 to 6 hours. After adding the potassium sulfate solution and the monomer pre-emulsion dropwise, add tert-butyl hydroperoxide-sodium formaldehyde sulfoxylate, After the addition, continue to keep warm and stir for 2.5 hours. After the reaction is complete, cool down to 20-40°C and discharge to obtain an emulsion.

[0096] Above-mentioned emulsion raw material content (weight percentage) is as follows:

[0097] Nuclear Layer Monomer:

[0098] Styren...

Embodiment 3

[0129] a. mixing and stirring the monomer with water and an emulsifier to form an emulsion, and preparing a core monomer pre-emulsion and a shell monomer pre-emulsion;

[0130] b. In a reactor equipped with a stirrer, a reflux condenser, a constant-speed dripping peristaltic pump, a thermometer and an external heating jacket, add potassium persulfate solution, core layer monomer pre-emulsion and shell layer monomer pre-emulsion respectively solution into the reaction kettle, the reaction temperature is 75°C, and the dropping time is 2.5 to 4 hours. After adding the potassium sulfate solution and the monomer pre-emulsion liquid dropwise, add tert-butyl hydroperoxide-formaldehyde sulfoxylate sodium, After the addition, continue to keep warm and stir for 3-5 hours. After the reaction is completed, cool down to 20-40°C and discharge to obtain an emulsion.

[0131] Above-mentioned emulsion raw material content (weight percentage) is as follows:

[0132] Nuclear Layer Monomer:

[...

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Abstract

The invention discloses an organosilicon modified tert-fluoro emulsion and a preparation method of a luminescent coating which takes the emulsion as a base material. The emulsion takes vinyl ester of tertary carboxylic acid, an organosilicon monomer, an organic fluorine monomer and an acrylic monomer to perform graft copolymerization, the prepared emulsion takes water as a solvent, does not contain organic solvent and is an environment-friendly product, and emulsion particles are of a core-shell structure. The production method of the luminescent coating comprises the following steps: mixing and blending the emulsion with super-efficiency afterglow luminescent powder and other coating additives, the prepared luminescent coating has corrosion prevention and self-cleaning functions, and can be applied to the fields such as building decoration, advertisement signs, factory instruments, airfield runways, road rails, handicraft articles and the like. The coating has the advantages of excellent cost performance ratio, convenient production and construction and easy implementation and popularization.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a silicone-modified tertiary fluorine emulsion and a method for preparing a luminous coating based on the emulsion. Background technique [0002] Tertiary fluorine emulsion is a new type of resin emulsion newly developed in recent years. Through the introduction of vinyl tertiary carbonate monomer, the copolymer emulsion has special properties by virtue of the steric hindrance and shielding effect produced by the three alkyl substituents on the tertiary carbon atom. It not only maintains the chemical characteristics of high surface activity, high thermal stability, high chemical inertness and hydrophobic and oil-repellent "three highs" and "two phobias" of fluoropolymers, but also greatly improves the gloss and chemical stability of coatings , thermal stability, film hardness, film flexibility and thermal insulation, etc. [0003] Despite the above advantages, when used as an anti-corro...

Claims

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Application Information

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IPC IPC(8): C08F220/10C08F218/10C08F220/22C08F230/08C08F212/08C08F2/24C09D133/04C09D125/08C09D5/22
Inventor 王云普颜小东王喜平李成林张守村陈久存
Owner NORTHWEST NORMAL UNIVERSITY
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