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Radiation polymerization method for aqueous polyurethane-fluorine containing acrylic ester emulsion

A technology of water-based polyurethane and acrylate, which is applied in the production process of textile printing and dyeing products, can solve the problems of high temperature dependence and difficult control of the reaction speed of the product production process, and achieve low dependence, easy control of polymerization reaction speed, and production low cost effect

Inactive Publication Date: 2008-07-30
ANHUI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned patents all adopt the conventional chemical synthesis method, and the reaction speed of the product production process is difficult to control and has a large dependence on temperature. The present invention makes full use of the advantages of radiation polymerization to provide a polymerization reaction speed that is easy to control, the reaction can be carried out at room temperature, and the product quality is high. , Radiation polymerization method of water-based polyurethane-fluorine-containing acrylate emulsion without "three wastes" in the production process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The specific synthetic operation method of the radiation polymerization method of aqueous polyurethane-fluorine-containing acrylate emulsion is as follows:

[0038] (1) Preparation of vinyl-terminated PU / acrylate organic fluorine aqueous dispersion

[0039] Put 100kg of polyoxyethylene diol into a stainless steel reaction kettle, vacuum dehydrate at 120°C for 2 hours; cool down to 80°C, add 48kg of 1,6-hexamethylene diisocyanate, and keep it at 90°C for 2 hours; cool down to 75°C, Add 5.2 kg of hydrophilic monomer dimethylolpropionic acid, 3 kg of chain extender ethylene glycol, and 10 kg of functional monomer β-hydroxypropyl methacrylate, and keep warm for 3 hours. During the reaction, if the viscosity is high, acetone should be added. Cool down to below 30°C, add 2.8kg of neutralizing agent triethylamine, stir for 2-5 minutes, add 370kg of water under high-speed stirring to disperse into an aqueous emulsion, and then mix with the pre-emulsion of organic fluorine and ac...

Embodiment 2

[0044] Waterborne polyurethane - the specific synthetic operation method of the radiation polymerization method of fluorine-containing acrylate emulsion is as follows:

[0045] (1) Preparation of vinyl-terminated PU / acrylate organic fluorine aqueous dispersion

[0046] Put 100kg of polyoxypropylene diol into a stainless steel reaction kettle, vacuum dehydrate at 120°C for 2h; cool down to 80°C, add 42kg of toluene diisocyanate, keep it at 85°C for 2h; cool down to 75°C, add 6kg of hydrophilic monomer Dimethylol propionic acid, 6kg of chain extender diethylene glycol, 8kg of functional monomer β-hydroxypropyl acrylate, heat preservation reaction for 3h. During the reaction, if the viscosity is high, acetone should be added. Cool down to below 30°C, add 3.1kg of neutralizing agent triethylamine, stir for 2-5 minutes, add 340kg of water under high-speed stirring to disperse into an aqueous emulsion, and then mix with the pre-emulsion of organic fluorine and acrylate mixed monome...

Embodiment 3

[0051] Waterborne polyurethane - the specific synthetic operation method of the radiation polymerization method of fluorine-containing acrylate emulsion is as follows:

[0052] (1) Preparation of vinyl-terminated PU / acrylate organic fluorine aqueous dispersion

[0053] Put 100kg of polyoxypropylene-oxyethylene polyol into a stainless steel reaction kettle, vacuum dehydrate at 120°C for 2h; cool down to 80°C, add 45kg of cyclohexane diisocyanate, and keep it at 90°C for 2h; cool down to 75°C, add 4kg Hydrophilic monomer dimethylolpropionic acid, 5.8kg chain extender butanediol, 6kg functional monomer hydroxyethyl acrylate, heat preservation reaction for 3h. During the reaction, if the viscosity is high, acetone should be added. Cool down to below 30°C, add 2.0kg of neutralizing agent triethylamine, stir for 2-5 minutes, add 390kg of water under high-speed stirring to disperse into an aqueous emulsion, and then mix with the pre-emulsion of organic fluorine and acrylate mixed mo...

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Abstract

The invention relates to a preparation method for a textile dyed and printed product, namely, aqueous polyurethane-fluoride bearing acrylic ester textile emulsion, and solves the problems of the prior product that the reaction rate of the manufacturing technique is difficult to control, and the dependence on the temperature is large, etc. The technique of the invention comprises three major steps: firstly, various raw materials are adopted for preparing vinyl-terminated polyurethane prepolymer, neutralizer, namely, spasmolytol is added, and vinyl-terminated polyurethane emulsion is prepared through water; secondly, the vinyl-terminated polyurethane emulsion is uniformly mixed with pre-emulsion of acrylic ester and an organic fluorine monomer, to prepare the organic fluorine monomer water dispersion solution of vinyl-terminated polyurethane acrylic ester; thirdly, cobalt 60-Gamma radiation and polymerization are then performed, to prepare aqueous polyurethane-fluoride bearing acrylic ester emulsion. The product obtained through the technique of the invention is used for ensuring no formaldehyde release of finish fabrics, and does not contain alkylphenol polyoxyethylene (APEO), thereby meeting the environmental protection requirement. The polyreaction speed of the technique is easy to be controlled, the dependence on the temperature is small, the reaction can be performed at normal temperature, the three wastes (waste gas, waste water and industrial residue) can not be generated during the production process, the product quality is high, and the production cost is low.

Description

technical field [0001] The invention relates to a production process of textile printing and dyeing products, in particular to a preparation method of water-based polyurethane-fluorine-containing acrylate textile emulsion. Background technique [0002] According to the statistics of the National Textile Printing and Dyeing Technology Information Center, by the end of 2005, domestic pigment printing and dyeing adhesives needed about 100,000 to 130,000 tons per year, with an output value of about 1 billion to 1.5 billion yuan. According to the estimates of relevant departments, the total amount of fiber processing in my country will reach 11.3 million tons in 2006. At present, the ratio of printing and dyeing auxiliaries to fiber consumption in my country is 4%. With the technological progress of the auxiliaries industry and the launch of new products, the consumption level of auxiliaries should gradually increase. Based on the current level, the national demand for printing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F290/06C08F2/46C08G18/10C08G18/83D06P1/52
Inventor 杨建军吴庆云张建安吴明元王小君
Owner ANHUI UNIVERSITY
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