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Colored hollow polymer emulsion and preparation method thereof

A technology of emulsion and emulsion polymerization, applied in application, coating, ink, etc., can solve problems such as uneven color, poor color fastness to light, and poor compatibility between dyes and polymer matrix

Active Publication Date: 2015-12-23
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Due to the poor compatibility of dyes and polymer matrix in traditional colored water-based polymer products, the colored water-based polymer emulsion products obtained by blending usually have problems such as uneven color and poor color fastness to light.
The inventors have found that the problem of poor compatibility between the dye and the polymer matrix can be solved by using a polymerizable dye containing a double bond in combination with the polymer matrix to prepare a copolymerized colored polymer emulsion

Method used

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  • Colored hollow polymer emulsion and preparation method thereof
  • Colored hollow polymer emulsion and preparation method thereof
  • Colored hollow polymer emulsion and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0104] Example 1 - Emulsion Containing Red Dye

[0105] (1) Formation of nuclei: Add 60 g of deionized water and 0.05 g of sodium lauryl sulfate into a 250 ml four-necked flask, stir and mix, blow nitrogen gas, and heat to 65°C. 2 grams of red polymerizable dye 1-(6-acrylamido) hexylaminoanthraquinone, 10 grams of methacrylic acid, 40 grams of methyl methacrylate, 40 grams of deionized water, 0.25 grams of sodium lauryl sulfate Mix well with 0.5 g of nonylphenol polyoxyethylene ether (OP-10) to obtain a pre-emulsion; dissolve 0.25 g of ammonium persulfate in 30 g of deionized water to prepare an initiator solution. Take 10 grams of the above-mentioned monomer pre-emulsion and 12 grams of the initiator solution, and add them together to the above-mentioned four-necked bottle, and heat and stir for 2 hours to obtain a seed emulsion. Add the remaining pre-emulsion and initiator solution dropwise into the above-mentioned four-necked bottle for 2 hours. After the dropwise addition...

Embodiment 2

[0109] Example 2 - Emulsion Containing Red Dye

[0110] (1) Formation of nuclei: Add 60 g of deionized water and 0.025 g of sodium lauryl sulfate into a 250 ml four-necked flask, stir and mix, replace with nitrogen, and heat to 75°C. 30 grams of methacrylic acid, 19 grams of methyl methacrylate, 1 gram of ethylene glycol bis(methacrylate), 40 grams of deionized water, 0.75 grams of sodium lauryl sulfate and 0.75 grams of nonylphenol polyoxyethylene The ether (OP-10) was fully mixed to obtain a monomer pre-emulsion; 0.6 g of ammonium persulfate was dissolved in 30 g of deionized water to prepare an initiator solution. Take 2.5 grams of the above-mentioned monomer pre-emulsion and 3 grams of the initiator solution, and add them together to the above-mentioned four-neck bottle, heat and stir for 20 minutes to obtain a seed emulsion. Add the remaining monomer pre-emulsion and initiator solution dropwise into the above-mentioned four-necked bottle for 4.5 hours. After the dropwise...

Embodiment 3

[0114] Example 3 - Emulsion Containing Red Dye

[0115](1) Formation of nuclei: Add 60 g of deionized water and 0.025 g of sodium lauryl sulfate into a 250 ml four-neck flask, stir and mix, replace with nitrogen, and heat to 85°C. 1 gram of red polymerizable dye 3-(4-(4'-N, N-dimethylaminophenyl azo) phthalimide) propyl-2-methacrylate, 20.25 gram methacrylic acid, 29.5 gram methyl methacrylate, 0.25 gram bis(methacrylate) glycol ester, 40 gram deionized water, 0.25 gram sodium lauryl sulfate and 0.75 gram nonylphenol ethoxylate ( OP-10) was fully mixed to obtain a monomer pre-emulsion; 0.5 grams of ammonium persulfate was dissolved in 30 grams of deionized water to prepare an initiator solution. Take 5 grams of the above-mentioned monomer pre-emulsion and 6 grams of the initiator solution, add them together to the above-mentioned four-necked bottle, keep warm and stir for 2 hours, and obtain the seed emulsion. The remaining monomer pre-emulsion and initiator solution were ad...

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Abstract

The invention provides a colored hollow polymer emulsion and a preparation method thereof. Specifically, the invention relates to a particle containing a dye. The particle comprises: a nuclear body, which is formed on the basis of a first polar material; a transition layer, which is formed on the external surface of the nuclear body on the basis of a second polar material and the first polar material; and a supporting layer, which is formed on the external surface of the transition layer on the basis of the second polar material; wherein the dye is dispersed in at least one selected from the group consisting of the nuclear body, the transition layer and the supporting layer and is in covalent binding with at least one selected from the group consisting of the nuclear body, the transition layer and the supporting layer. Therefore, the nuclear body provides a hydrophilic nucleus structure for the particle and enables the particle containing the dye to have an adjustable multilayer structure; and thus, the application scope of the particle prepared in embodiments in the invention is further broadened.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a colored hollow polymer emulsion and a preparation method thereof. More specifically, it relates to a dye-containing particle, a dye-containing emulsion, a method for preparing the emulsion, and the use of the particle and the emulsion in water-based paint, water-based paint, water-based ink, printing and dyeing, leather, papermaking and / or pigments. use. Background technique [0002] Polymer emulsion is the most important raw material for the preparation of environmentally friendly water-based polymer products. Wherein, the hollow polymer emulsion is a functional emulsion formed by dispersing hollow polymer latex particles in water. Due to the hollow structure in this type of polymer emulsion, it has the advantages of light weight, light scattering, heat insulation, etc., so the hollow polymer emulsion is widely used in many fields such as coatings, paper, ink, cosmetics, etc...

Claims

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Application Information

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IPC IPC(8): C08F220/14C08F220/06C08F220/60C08F212/08C08F212/36C08F220/18C08F220/36C08J7/02C09D7/12C09D11/00D21H21/28
Inventor 黄馨仪徐旻李凌霄于恬怡李勃天阚成友
Owner TSINGHUA UNIV
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