Preparation method of acrylic silicone soap-free copolymerization nanoemulsion

A nano-emulsion and organosilicon technology is applied in the field of preparation of polymer emulsions to achieve the effects of improving water whitening resistance, improving water resistance and reducing water absorption

Active Publication Date: 2019-01-15
江苏三瑞生物技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Microemulsions, like emulsions, form a stable oil-water mixed system under the action of emulsifiers, but there are obvious differences between the two

Method used

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  • Preparation method of acrylic silicone soap-free copolymerization nanoemulsion
  • Preparation method of acrylic silicone soap-free copolymerization nanoemulsion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Add 230kg deionized water, 7.8kg allyl alkyl alcohol ether sulfate SR-1025, 2.2kg acrylamide into the pre-emulsification tank, then add 2.1kg methacrylic acid (AA), 106kg isooctyl acrylate (2- EHA), 124kg methyl methacrylate (MMA), and 1.3kg n-amyl alcohol are dispersed at high speed to prepare pre-emulsion A.

[0033] Add 504.2kg deionized water, 8.2kg allyl alkyl alcohol ether sulfate SR-1025, 1.2kg n-amyl alcohol in the reactor, then heat to 83~85°C, prepare 1.56kg pre-emulsion ( A) and initiator potassium persulfate (KPS) 0.64kg+18.3kg deionized aqueous solution was added to the reactor, the reaction temperature was kept at 85-87°C, and the reaction process was controlled within 10 minutes to prepare the seed emulsion.

[0034] Simultaneously drop the pre-emulsion and initiator solution (potassium persulfate KPS1.47kg+125.9kg deionized aqueous solution) into the reactor, continue to ensure that the temperature of the reactor is 86-88°C, and the dropping time is cont...

Embodiment 2

[0039] Add 230kg deionized water, 7.8kg methacrylamide isopropyl sulfonic acid AMPS-2404, 2.2kg acrylamide into the pre-emulsification tank, then add 2.1kg methacrylic acid (AA), 106kg isooctyl acrylate (2- EHA), 124kg methyl methacrylate (MMA), and 1.3kg n-propanol were dispersed at high speed to obtain pre-emulsion A.

[0040]Add 504.2kg of deionized water, 8.2kg of methacrylamide isopropylsulfonic acid AMPS-2404, 1.2kg of n-propanol into the reaction kettle, then heat to 83-85°C, and prepare 1.56kg of pre-emulsion ( A) and the initiator sodium persulfate 0.64kg+18.3kg deionized aqueous solution were added to the reactor, the reaction temperature was kept at 85-87°C, the reaction process was controlled within 15 minutes, and the seed emulsion was obtained.

[0041] Simultaneously drop the pre-emulsion and initiator solution (sodium persulfate 1.47kg + 125.9kg deionized aqueous solution) into the reactor, keep the temperature of the reactor at 86-88°C, and control the droppin...

Embodiment 3

[0046] Add 230kg deionized water, 7.8kg allyl alkyl sulfosuccinate M-12S, 2.2kg acrylamide into the pre-emulsification tank, then add 2.1kg methacrylic acid (AA), 106kg isooctyl acrylate ( 2-EHA), 124kg methyl methacrylate (MMA), and 1.3kg n-butanol were dispersed at high speed to obtain pre-emulsion A.

[0047] Add 504.2kg of deionized water, 8.2kg of allyl alkyl sulfosuccinate M-12S, and 1.2kg of n-butanol into the reaction kettle, and then heat it to 83-85°C to prepare 1.56kg of pre-emulsified Solution (A) and initiator potassium persulfate (KPS) 0.64kg+18.3kg deionized aqueous solution were added to the reactor, the reaction temperature was kept at 85-87°C, and the reaction process was controlled within 5 minutes to prepare the seed emulsion.

[0048] Simultaneously drop the pre-emulsion and initiator solution (potassium persulfate KPS1.47kg+125.9kg deionized aqueous solution) into the reaction kettle, continue to ensure that the temperature of the reaction kettle is 86-88...

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Abstract

The invention discloses a preparation method of acrylic organosilicon soap-free copolymerized nano-emulsion. The raw materials are unsaturated monomer, organosilicon, reactive emulsifier, co-emulsifier, initiator and water, and soap-free polymerization and micro-emulsion polymerization technology are used, Acrylic organosilicon soap-free copolymer nanoemulsions were prepared by using reactive emulsifiers containing olefin bonds and introducing long carbon chain alcohols as co-emulsifiers. Using the microemulsion polymerization process, introducing long carbon chain alcohol, and adopting a high-speed emulsification method, the latex particles are formed into tiny micelles, and the polymerization is carried out in the micelles under the action of the initiator, and finally nano-sized micelles are obtained. , Isomorphic, clear and transparent emulsion products. Adopt soap-free polymerization process, use long carbon chain emulsifier containing olefin bonds, olefin bonds directly participate in the polymerization reaction and become part of the final latex particles, so that the final emulsion product does not contain free emulsifier, which ensures the final film formation of the emulsion Purity of the back membrane.

Description

technical field [0001] The invention relates to a preparation method of a polymer emulsion, in particular to a preparation method of an acrylic silicone soap-free copolymerized nanoemulsion. Background technique [0002] Microemulsion is an isotropic, thermodynamically stable transparent or translucent colloidal dispersion system composed of oil, water, emulsifier and co-emulsifier. The size of the dispersed phase is nanoscale and shorter than the wavelength of visible light. [0003] The concept of microemulsion polymerization was first proposed by Hoar and Schalmen in 1943. The difference is the introduction of co-emulsifiers in the emulsion polymerization system, and the use of microemulsion processes such as high-speed stirring, high-pressure homogenization, and ultrasonic dispersion. Microemulsions, like emulsions, form a stable oil-water mixed system under the action of emulsifiers, but there are significant differences between the two. Emulsion is a turbid unstable s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/14C08F220/18C08F220/06C08F220/56C08F216/14C08F220/58C08F228/02C08F2/24
CPCC08F2/24C08F220/14C08F220/06C08F220/56C08F216/1475C08F220/1808C08F228/02C08F220/585
Inventor 唐冬勤叶洲
Owner 江苏三瑞生物技术有限公司
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