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Functional emulsion and preparation method thereof

An emulsion and functional technology, which is applied in the field of functional emulsion and its preparation, can solve the problems of poor surface properties of water-based resins and complex synthesis processes, and achieve the effects of increased cross-linking degree, good film-forming performance, and improved mechanical properties and surface properties.

Inactive Publication Date: 2021-03-12
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problems to be solved by the present invention are: existing water-based resins have technical problems such as poor surface properties and complex synthesis processes.

Method used

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  • Functional emulsion and preparation method thereof
  • Functional emulsion and preparation method thereof
  • Functional emulsion and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A functional emulsion, calculated in parts by weight, its raw materials include:

[0047]

[0048]

[0049] Wherein, the acrylate monomer is a mixture composed of methyl acrylate, butyl acrylate and 2-ethylhexyl acrylate in a mass ratio of 2:1:0.5.

[0050] The cross-linking monomer 1 is diacetone acrylamide and adipate dihydrazide, and the mass ratio of diacetone acrylamide to adipate dihydrazide is 2:1.

[0051] The crosslinking monomer 2 is a mixture selected from diethylene glycol diacrylate, tetrahydrofuran acrylate, and ethoxylated bisphenol A dimethacrylate in a mass ratio of 1:1:0.5;

[0052] Described emulsifying agent is sodium lauryl sulfate;

[0053] The initiator is ammonium persulfate.

[0054] The raw materials of the fluorine-containing acrylate monomer include: pentaerythritol triacrylate, isophorone diisocyanate, 2,2,3,3,4, 4,5,5-Octafluoro-1-pentanol, mixed solvent of methyl methacrylate and ethyl acetate, catalyst, hydroquinone, the mixed so...

Embodiment 2

[0067] A functional emulsion, calculated in parts by weight, its raw materials include:

[0068]

[0069] Wherein, the acrylate monomer is a mixture composed of methyl acrylate, ethyl acrylate, butyl acrylate and 2-ethylhexyl acrylate in a mass ratio of 30:20:10:10.

[0070] The crosslinking monomer 1 is diacetone acrylamide and adipate dihydrazide, and the mass ratio of diacetone acrylamide to adipate dihydrazide is 2.5:1.

[0071] The crosslinking monomer 2 is selected from diethylene glycol diacrylate, ethoxylated bisphenol A dimethacrylate, ethoxylated trimethylolpropane triacrylate, hyperbranched polyester acrylate in a mass ratio of 1 : 1:0.5:0.3 mixture;

[0072] The emulsifier is a mixture of sodium dodecylsulfate, sodium dodecylbenzenesulfonate, and nonylphenol polyoxyethylene ether in a mass ratio of 2:2:1;

[0073] The initiator is potassium persulfate.

[0074] The raw materials of the fluorine-containing acrylate monomer include: pentaerythritol triacrylate,...

Embodiment 3

[0082] A functional emulsion, calculated in parts by weight, its raw materials include:

[0083]

[0084] Wherein, the acrylate monomer is a mixture of methyl acrylate, butyl acrylate and isobornyl acrylate in a mass ratio of 2:1:1.

[0085] The crosslinking monomer 1 is diacetone acrylamide and adipate dihydrazide, and the mass ratio of diacetone acrylamide to adipate dihydrazide is 3:1.

[0086] The crosslinking monomer 2 is a mixture composed of ethoxylated bisphenol A dimethacrylate, ethoxylated trimethylolpropane triacrylate, and isobornyl acrylate in a mass ratio of 2:0.5:1;

[0087] The emulsifier is a mixture of sodium lauryl sulfate and nonylphenol polyoxyethylene ether in a mass ratio of 2:1;

[0088] The initiator is potassium persulfate.

[0089] The raw materials of the fluorine-containing acrylate monomer include: pentaerythritol triacrylate, isophorone diisocyanate, 2,2,3,3,4, 4,5,5-Octafluoro-1-pentanol, mixed solvent of methyl methacrylate and ethyl acet...

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Abstract

The invention discloses a functional emulsion which is characterized by comprising the following raw materials: a fluorine-containing acrylate monomer, an acrylate monomer, a crosslinking monomer 1, acrosslinking monomer 2, an emulsifier, an initiator and deionized water. The preparation method comprises the following steps: adding deionized water and the emulsifier into a reaction container, dropwise adding a mixture of the fluorine-containing acrylate monomer, the acrylate monomer, the crosslinking monomer 1 and the crosslinking monomer 2 into the reaction container, heating to 60-75 DEG C,adding the initiator into the reaction container, reacting for 3-5 hours while stirring, heating to 85-90 DEG C, and reacting for 1-2 hours while stirring, thereby obtaining the functional emulsion.The functional emulsion is good in film-forming property and high in contact angle with water, and can be widely applied to protection of airplanes, ships, buildings, traffic and various machines.

Description

technical field [0001] The invention relates to a functional emulsion and a preparation method thereof, belonging to the technical field of polymer materials. Background technique [0002] Acrylate resin emulsion uses water as the main dispersion medium. It has the advantages of low price, safety and environmental protection, non-combustibility, convenient use, and good film-forming property. It has been widely used in the technical fields of coating, leather finishing, fabric treatment, ink, etc. application. However, in the preparation process of acrylate resin emulsion, most of the acrylate monomers used are hydrophilic monomers, so that the water resistance of the resin film-former is worse than that of the solvent-based resin, and the surface performance is poor, which is specifically reflected in the The contact angle of water is low, generally lower than 90°, which limits the application of water-based resins. In order to broaden the application range of water-based...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/14C08F220/18C08F220/58C08F222/20C08F220/32C08F222/22C08F283/01C09D133/12C09D151/08
CPCC08F220/14C08F283/01C09D133/24C09D151/08
Inventor 高楠张英强王晓瑞
Owner SHANGHAI INST OF TECH
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