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Naphtha-containing water-borne acrylic resin and preparation method thereof

A technology of water-based acrylic acid and naphtha, applied in the field of water-based acrylic resin containing naphtha, can solve the problems of low solid content, poor gloss, high emulsion viscosity and the like

Active Publication Date: 2015-11-25
河南索顿新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method has improved the performance of water-based acrylic resin to a certain extent, the film-forming property of obtained water-based acrylic resin is bad, and glossiness is poor, and stability is poor, and solid content is lower, and in addition, in synthetic process, easily Make the emulsion viscous and difficult to emulsify

Method used

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  • Naphtha-containing water-borne acrylic resin and preparation method thereof
  • Naphtha-containing water-borne acrylic resin and preparation method thereof
  • Naphtha-containing water-borne acrylic resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0129] (1) Add 50.1g of naphtha, 102.93g of ethylene glycol butyl ether, and 3.99g of n-dodecanethiol into a 2000mL four-neck flask equipped with a stirrer, a reflux condenser, and a separatory funnel, and start the stirrer. The control temperature is 80°C;

[0130] (2) Add the mixture A (methyl methacrylate 57.85g, butyl acrylate 52.61g, hydroxyethyl methacrylate 34.62g, vinyltrioxysilane 7.33g, azobisisobutyronitrile) in about 3 hours. 2.99g, filtered after ultrasonic dispersion);

[0131] (3) Add 0.6 g of azobisisobutyronitrile, 0.6 g of n-dodecylmercaptan, and 20.21 g of ethylene glycol butyl ether (directly added after ultrasonic dispersion) to the system obtained in step 2, and insulate and react for 1 h at 80°C ,

[0132] (4) Add dropwise mixture B (86.85g of methyl methacrylate, 12.06g of methacrylic acid, 80.34g of butyl acrylate, 52.09g of hydroxyethyl methacrylate, vinyl trioxysilane) to the system obtained in step 3 11.62g, 5.02g of azobisisobutyronitrile, filte...

Embodiment 2

[0137] (1) Add 80g of naphtha, 100g of ethylene glycol butyl ether, and 6g of octadecyl mercaptan in a 2000mL four-necked flask equipped with an agitator, a reflux condenser and a separatory funnel, and start the agitator to control the temperature of the water bath. 85°C;

[0138] (2) Add the mixture A (methyl methacrylate 80g, butyl acrylate 70g, hydroxyethyl methacrylate 40g, vinyltrioxysilane 6g, azobisisobutyronitrile 5g, ultrasonically disperse postfilter);

[0139] (3) Add 0.3 g of azobisisobutyronitrile, 0.8 g of n-octadecyl mercaptan, and 10 g of ethylene glycol butyl ether (directly added after ultrasonic dispersion) to the system obtained in step 2, and insulate and react at 85° C. for 1 h,

[0140] (4) Add dropwise mixture B (methyl methacrylate 100g, methacrylic acid 15g, butyl acrylate 60g, hydroxyethyl methacrylate 70g, vinyltrioxysilane 8g, azo Diisobutyronitrile 8g, filtered after ultrasonic dispersion), dripped in about 2 hours,

[0141] (5) Add 0.5 g of azo...

Embodiment 3

[0145] (1) Add 20g of naphtha, 100g of ethylene glycol butyl ether, and 3g of n-dodecanethiol in a 2000mL four-neck flask equipped with an agitator, a reflux condenser and a separatory funnel, and start the agitator to control the temperature of the water bath. 90°C;

[0146] (2) Add the mixture A (methyl methacrylate 70g, butyl acrylate 80g, hydroxyethyl methacrylate 30g, vinyltrioxysilane 9g, azobisisobutyronitrile 1g) in about 5 hours, and ultrasonically disperse postfilter);

[0147] (3) Add 0.8 g of azobisisobutyronitrile, 0.4 g of n-dodecanethiol, and 30 g of ethylene glycol butyl ether (directly added after ultrasonic dispersion) to the system obtained in step 2, and insulate and react for 1 h at 90° C.,

[0148] (4) Add dropwise mixture B (methyl methacrylate 60g, methacrylic acid 8g, butyl acrylate 100g, hydroxyethyl methacrylate 30g, vinyltrioxysilane 15g, azo Diisobutyronitrile 3g, filtered after ultrasonic dispersion), dripped in about 5h,

[0149] (5) Add 2 g o...

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Abstract

The invention provides a method for preparing naphtha-containing water-borne acrylic resin and the water-borne acrylic resin prepared by the method. The method uses a naphtha-containing compound solvent, and comprises the following steps: firstly, dissolving a chain transfer agent in the naphtha-containing compound solvent, adding a mixture A containing an acrylate monomer mixture I, an initiator and a chain transfer agent to initiate polymerization at a relatively low temperature; and then, refilling the initiator and the chain transfer agent into the system to control the reacting speed, and adding a mixture B containing an acrylate monomer mixture II. Therefore, the prepared water-borne acrylic acid has a core-shell structure and is hydrophilic and lyophobic, and a paint film prepared by the water-borne acrylic acid is excellent in hardness, adhesion, impact resistance, water resistance and other performances. Furthermore, the weight ratio of naphtha to other organic solvents of the naphtha-containing compound solvent can be adjusted according to using temperatures, so that the surface drying time can be adjusted, and the film making efficiency can be improved on the premise that the performance of the paint film is not lost.

Description

technical field [0001] The invention belongs to the field of polymer synthesis, and in particular relates to a method for preparing a naphtha-containing water-based acrylic resin and the naphtha-containing water-based acrylic resin prepared by the method. Background technique [0002] At present, solvent-based acrylic resin products occupy an important position in my country, but because of their high VOC value, solvent-based acrylic resins are extremely unfriendly to the environment and human health, and thus face the danger of withdrawing from the market. Coupled with the continuous improvement of people's awareness of environmental protection, a large number of environmentally friendly products have been released one after another, which has attracted the attention of the whole society. Among them, water-based acrylic resin is more popular. For example, German chemical giants Bayer, BASF, and DuPont have invested a lot of energy in the research and development of water-b...

Claims

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Application Information

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IPC IPC(8): C08F220/14C08F220/18C08F220/28C08F230/08C08F2/38
Inventor 陶栋梁
Owner 河南索顿新材料有限公司
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