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Environment-friendly silicon-acrylate emulsion and preparation method thereof

A silicone acrylic emulsion, an environmentally friendly technology, applied in dyeing, textiles and papermaking, etc., can solve problems such as hard hand feeling, and achieve the effect of increasing color yield, increasing viscosity, and excellent dispersion stability

Active Publication Date: 2015-06-03
HANGZHOU TRANSFAR FINE CHEM CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this emulsion will feel very hard when used in textiles, and the heavy metal catalyst introduced at the same time is fatal to the environmental protection of textiles

Method used

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  • Environment-friendly silicon-acrylate emulsion and preparation method thereof
  • Environment-friendly silicon-acrylate emulsion and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 1.0 grams of acrylic acid, 8.0 grams of ethyl methacrylate, 2.0 grams of diallyl phthalate, 1.0 grams of hydroxypropyl acrylate and 1.0 grams of methacryloxypropyl tripropropoxysilane, 10.0 grams of vinyl Pyrrolidone, 12.0 grams of vinyl silicone oil, 1.0 grams of sodium acrylate-2-ethylsulfonate, 0.15 grams of n-dodecanethiol, 0.05 grams of sodium bicarbonate, and 150 grams of deionized water were placed in an emulsification cup, and pre-treated at room temperature. Emulsified for 0.5 hours to form a stable white pre-emulsion.

[0031] The pre-emulsion obtained above is transferred to a four-neck flask equipped with devices such as stirring, nitrogen ventilation, condensation, and temperature measurement. Under the protection of nitrogen, stir, heat up, and add 0.4 g of ammonium persulfate at 50 ° C. After 15 minutes of reaction, an obvious blue light appears. After 2.5 hours of heat preservation, the temperature can be lowered to obtain a white emulsion with blue fluo...

Embodiment 2

[0033] 6.0 grams of maleic acid, 12.0 grams of styrene, 5.0 grams of divinylbenzene, 3.0 grams of hydroxyethyl methacrylate and 3.0 grams of methacryloxypropyl tripropoxysilane, 14.0 grams of vinylpyrrolidone, 12.0 grams Vinyl silicone oil, 1.5 grams of sodium styrene sulfonate, 0.3 grams of n-dodecyl mercaptan acetate, 0.1 grams of potassium bicarbonate, and 170 grams of deionized water were placed in an emulsification cup, and pre-emulsified at room temperature for 0.5 hours. A stable white pre-emulsion was formed.

[0034] The pre-emulsion obtained above is transferred to a four-neck flask equipped with devices such as stirring, nitrogen ventilation, condensation, and temperature measurement. Under the protection of nitrogen, stir, heat up, and at 55°C, add 0.5 g of potassium persulfate. After 12 minutes of reaction, a clear blue light appears. After 2.5 hours of heat preservation, the temperature can be lowered to obtain a white emulsion with blue fluorescence.

Embodiment 3

[0036] 2.0 grams of acrylic acid, 2.0 grams of itaconic acid, 20.0 grams of lauryl (meth)acrylate, 5.0 grams of ethylene glycol diacrylate, 5.0 grams of allyl glycidyl ether and 5.0 grams of methacryloxypropyl tri Isopropoxysilane, 12.0 grams of vinylpyrrolidone, 10.0 grams of vinyl silicone oil, 0.5 grams of sodium tetradecyl propyl sulfonate maleate, 0.1 grams of succinic acid mono-n-dodecyl mercaptan, 0.06 One gram of sodium carbonate and 200 grams of deionized water were placed in an emulsification cup, and pre-emulsified at room temperature for 0.5 hour to form a stable white pre-emulsion.

[0037] The pre-emulsion obtained above is transferred to a four-neck flask equipped with devices such as stirring, nitrogen ventilation, condensation, and temperature measurement. Under the protection of nitrogen, stir, heat up, and add 0.75 g of AIBN at 60 ° C, after 11 minutes of reaction, there will be obvious blue light, and after 2.5 hours of heat preservation, the temperature ca...

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Abstract

The invention discloses an environment-friendly silicon-acrylate emulsion with high color yield and high fastness, and a preparation method thereof. A few of existing silicon-acrylate emulsions are not environment-friendly, a few of existing silicon-acrylate emulsions are poor in fastness, a few of existing silicon-acrylate emulsions are light in color yield, and a few of existing silicon-acrylate emulsions are hard in hand feeling when being applied to textiles. The environment-friendly silicon-acrylate emulsion is formed by emulsion polymerization of an unsaturated acidic monomer, hydrocarbon unsaturated monomers, a double-bond type crosslinking monomer, an environment-friendly functional monomer, a complex monomer and a soft monomer under the action of an initiator, a polymerizable emulsifier, a modifier and a buffering agent in a water phase. According to the unsaturated acidic monomer, the emulsion stability and the coating (pigment) disperse capacity are improved; a good hand feeling can be realized by the hydrocarbon unsaturated monomers and the soft monomer; the brightening property of the polymer film can be greatly improved by the double-bond type crosslinking monomer and the complex monomer; and the fastness of the polymer film is improved by the environment-friendly functional monomer and the polymerizable emulsifier. The environment-friendly silicon-acrylate emulsion with high color yield and high fastness has excellent brightening property and softness and good fastness.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a high-color-yield, high-fastness environment-friendly silicon-acrylic emulsion and a preparation method thereof, which can be applied to products such as paint printing and coating. Background technique [0002] Acrylate emulsion has a wide range of sources, low cost, good film-forming properties, high strength and strong adhesion, and good thermal stability, photochemical stability and oxidation resistance, so it is widely used in coatings, adhesives, printing and dyeing, Papermaking, leather and other fields; however, acrylate emulsions have disadvantages such as poor water resistance, poor solvent resistance, brittleness at low temperature, and stickiness at high temperature. Silicone has excellent high temperature and low temperature resistance, high hydrophobicity, good air permeability and superior weather resistance, which can improve the shortcomings of acrylate emulsion...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/12C08F226/10C08F220/18C08F220/06C08F220/28C08F230/08C08F212/08C08F212/36C08F2/24C08F222/02C08F222/14C08F220/32C08F220/44C08F218/08C08F222/20C08F222/38C08F216/34C08F210/02D06P1/52D06P3/60
Inventor 于本成宋金星乐翔袁国伟王静昌胡忠
Owner HANGZHOU TRANSFAR FINE CHEM CO LTD
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