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Hollow polymer emulsion and preparation method thereof

A polymer emulsion and hollow technology, which is applied in coatings, paper coatings, textiles and papermaking, etc., can solve problems such as difficult hollow polymer emulsions, core-shell structure damage, etc.

Inactive Publication Date: 2013-12-25
山东聚东新材料有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the core monomer accounts for more than 20% of the latex particle volume, it is difficult to completely cover the core by traditional techniques, which will cause alkali swelling to cause damage to the core-shell structure, and it is not easy to obtain a hollow polymer emulsion with a large hollow volume.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 1. Add 80kg of deionized water, 2.7kg of OP-9 emulsifier, and 1.4kg of sodium dodecylbenzenesulfonate (SDBS) to the pre-emulsification tank A, stir to make it even, and add to the pre-emulsification tank under the condition of stirring Add 30kg of ethyl acrylate, 60kg of acrylic acid, and 10kg of DAP monomer into the tank, stir at high speed for 30 minutes, and prepare pre-emulsion A for later use.

[0028] 2. Add 170kg of deionized water, 4kg of CO-436 emulsifier, 1.2kg of A-103 emulsifier, and 2.0kg of dodecylbenzenesulfonic acid (DSB) into the pre-emulsification tank B, stir to make it even, and keep stirring Under conditions, add 12.5kg of isobornyl methacrylate, 5kg of methacrylic acid, 12.5kg of styrene, and 10.5kg of butyl acrylate into the pre-emulsification tank, stir at high speed for 30 minutes, and prepare pre-emulsion B for later use.

[0029] 3. Add 100kg of deionized water, 2.8kg of AT-10 antioxidant, 1.2kg of 30% AMPS-2404 emulsifier, and 28kg of DSB int...

Embodiment 2

[0034] 1. Add 90kg of deionized water, 3.0kg of OP-9 emulsifier, and 1.5kg of SDBS to the pre-emulsification tank A, stir to make it even, and add 32kg of ethyl acrylate and 62kg of acrylic acid to the pre-emulsification tank under stirring conditions , DAP monomer 10kg, stirred at high speed for 32 minutes, prepared pre-emulsion A for subsequent use.

[0035] 2. Add 175kg of deionized water, 4.5kg of CO-436 emulsifier, 1.2kg of A-103 emulsifier, and 2.2kg of DSB to the pre-emulsification tank B, stir to make it even, and add it to the pre-emulsification tank under the condition of stirring Add 13 kg of isobornyl methacrylate, 6 kg of methacrylic acid, 13 kg of styrene, and 11 kg of butyl acrylate, and stir at high speed for 35 minutes to prepare pre-emulsion B for later use.

[0036] 3. Add 100kg of deionized water, 3kg of AT-10 antioxidant, 1.2kg of AMPS-2404 emulsifier, and 32kg of DSB into the pre-emulsification tank C, stir to make it even, and add propylene into the pre-...

Embodiment 3

[0041] 1. Add 80kg of deionized water, 2.5kg of OP-9 emulsifier, and 1.2kg of SDBS to the pre-emulsification tank A, stir to make it even, and add 28kg of ethyl acrylate and 58kg of acrylic acid to the pre-emulsification tank under stirring conditions , DAP monomer 9kg, high-speed stirring for 25 minutes, prepared pre-emulsion A for subsequent use.

[0042] 2. Add 165kg of deionized water, 3.5kg of CO-436 emulsifier, 1kg of A-103 emulsifier, and 1.8kg of DSB to the pre-emulsification tank B, stir to make it even, and add 12kg of isobornyl methacrylate, 5kg of methacrylic acid, 12kg of styrene, and 10kg of butyl acrylate were stirred at high speed for 25 minutes to prepare pre-emulsion B for later use.

[0043] 3. Add 98kg of deionized water, 2.6kg of AT-10 antioxidant, 1kg of AMPS-2404 emulsifier, and 28kg of DSB to the pre-emulsification tank C, stir to make it even, and add 80kg of acrylonitrile, 2.8kg of methacrylic acid, and 8.8kg of hexafluorobutyl acrylate were stirred ...

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Abstract

The invention discloses a hollow polymer emulsion and a preparation method thereof. The preparation method adopts the processes of emulsion polymerization, core-shell emulsion polymerization and the like to prepare the hollow polymer emulsion. An emulsion particle is of a structure with a hard shell and a soft shell, and the void fraction of a film formed by the emulsion reaches more than 50 percent. A variety of unsaturated monomers, emulsifier and initiator are adopted to prepare the hollow polymer emulsion, in particular, isobornyl methacrylate and 2,2,3,4,4,4-hexafluorobutyl acrylate are chosen as shell monomers, the contents of isobornyl methacrylate and 2,2,3,4,4,4-hexafluorobutyl acrylate respectively account for 2 to 5 percent and 3 to 6 percent by weight of the total amount of the emulsion, and the mechanical properties, the weather fastness and the dirt resistance of the emulsion film are effectively enhanced. The product has an excellent dry hiding effect, can decrease the density of the film and improve handle, and can be applied in the fields of water-borne coating, paper coating, industrial coating, ink and the like.

Description

technical field [0001] The invention relates to a polymer emulsion and a preparation method, in particular to a hollow polymer emulsion with good hiding power and elongation at break, which is applied in the fields of paint, paper coating, ink and the like, and a preparation method thereof. technical background [0002] In recent years, there have been some literature and patent publications related to the preparation of hollow polymer emulsions. The interior of the hollow polymer emulsion is a cavity, which is filled with air. Due to the difference in the refractive index at the air / polymer interface and the high scattering of light by the air bubbles, the hollow polymer microspheres have a strong covering effect, so they can be used in Masking polymers in waterborne paints. In addition, it can improve the stain resistance and scrub resistance of the coating, and improve the outdoor color retention of the coating, etc. [0003] The existing emulsion polymerization pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/46C08F220/06C08F220/18C08F212/08C08F218/18C08F220/22C08F2/24C09D133/20C09D7/12D21H19/56
Inventor 崔志勇魏志华佀庆法
Owner 山东聚东新材料有限责任公司
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