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Alkali-resistant sequestering dispersant and preparation thereof

A chelating dispersant, alkali-resistant technology, applied in dyeing, textile and papermaking, fiber processing, etc., can solve problems such as difficult use, poor alkali resistance, etc. hole effect

Active Publication Date: 2011-05-18
传化智联股份有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The alkali resistance of the above-mentioned two types of chelating dispersants is poor, and it is difficult to be suitable for use in high-alkali process conditions

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Example 1 Add 210 grams of deionized water, 6 grams of acrylic acid, 8 grams of maleic acid, 15 grams of vinyl glycol ether, 10 grams of α-olefin sulfonate, and 5 grams of acrylamide into a 1000 ml four-necked flask, and stir Dissolve all the materials, blow nitrogen, heat up to 65°C, add 0.3 grams of potassium persulfate, the reaction temperature rises to 80°C, and the reaction temperature is controlled between 78-82°C. After keeping the reaction for 20 minutes, add 1.0 grams of Mercaptan, dripping mass concentration is 15 grams of potassium persulfate solution of 5%, simultaneously dripping 110 grams of mixed aqueous solution of 24 grams of acrylic acid and 32 grams of maleic acid, dripping will be slow and uniform, and dropwise is completed in 1.5 hours, Continue to react for 50 minutes, lower the temperature, adjust the pH value between 5.0-7.0 with liquid caustic soda, and discharge.

Embodiment 2

[0020] Example 2 Add 200 grams of water, 7 grams of acrylic acid, 7 grams of fumaric acid, 12 grams of propylene alcohol, 13 grams of α-olefin sulfonate, and 5 grams of acrylamide into a 1000 ml four-neck flask, stir to dissolve all the materials, and pass Nitrogen for 5 minutes, heat up to 60°C, add 0.35 grams of potassium persulfate, 0.15 grams of sodium bisulfite, control the reaction temperature, keep the reaction at 75-80°C, react for 15 minutes, add 0.8 grams of n-dodecanethiol , dropwise add 40 grams of potassium persulfate solution with a mass concentration of 3%, and dropwise add 110 grams of a mixed aqueous solution containing 28 grams of acrylic acid and 28 grams of fumaric acid at the same time, and the dropping time of the two kinds of dropping solutions is controlled at 1.5-2.0 hours In between, after the dropwise addition, continue to react for 30 minutes, lower the temperature, adjust the pH value between 5.0-7.0 with liquid caustic soda, and discharge.

Embodiment 3

[0021] Example 3 Add 270 grams of water, 15 grams of acrylic acid, 4.5 grams of maleic acid, 3 grams of α-hydroxyacrylic acid, 10 grams of vinyl diethylene glycol ether, 10 grams of α-olefin sulfonate in a 1000ml four-necked flask, 5 grams of acrylamide, stir to dissolve the material completely, blow nitrogen, raise the temperature, when the reaction temperature rises to 65 °C, add 0.6 g of ammonium persulfate, keep the reaction at 76-80 °C for 35 minutes, add 1.2 g of n-dodecylsulfur Alcohol, dripping 12 grams of ammonium persulfate aqueous solution with a mass concentration of 10%, simultaneously dripping 115 grams of aqueous solution containing 35 grams of acrylic acid, 10.5 grams of maleic acid and 7 grams of hydroxyacrylic acid, the dropping time is controlled within 60-80 minutes After the dropwise addition, the reaction was continued for 30 minutes, the temperature was lowered to below 35°C, the pH value was adjusted between 5.0-7.0 with liquid caustic soda, and the mate...

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PUM

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Abstract

The invention relates to an alkali-resistant sequestering dispersant used in high alkali printing and dyeing process and a preparation method thereof, aiming at the problem that the prior most sequestering dispersants has poor alkali-resistant performance and is difficult to be used suitably in the process condition of high alkali. The alkali-resistant sequestering dispersant provided by the invention is composed of cycloartenyl or cycloartenyl ether, polymerable organic carboxylic acid, alpha-olefin sulfonate, and acrylamide that are polymerized in water solutions under the actions of initiator and molecular weight regulator. The alkali-resistant sequestering dispersant has the advantages of outstanding alkali-resistant stability, strong scale inhibition, scale decomposing, and preventing process defects of open-width pre-treatment effectively.

Description

technical field [0001] The invention relates to the field of high-molecular polymers, in particular to an alkali-resistant chelating dispersant used in the high-alkali process of printing and dyeing processing and a preparation method thereof. Background technique [0002] The dyeing and finishing of textiles is mostly carried out in water, and the Ca in water 2+ , Mg 2+ 、Cu 2+ , Fe 3+ , Mn 2+ , Zn 2+ Such metal ions are easy to form insoluble metal salts and deposit on fabrics and equipment, which not only affects product quality, but also easily causes equipment fouling. In actual production, in order to ensure the processing quality, chelating dispersants are generally added in the pretreatment and dyeing of the dyeing and finishing industry. Structure, the metal ion replaces the hydrogen (or sodium) on the coordination atom and enters the chelate ring to passivate the metal ion, and the formed complex is called a chelate. There are many o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/263D06P1/44C08F220/04C08F222/02C08F2/38C08F216/02C08F216/12C08F220/56
Inventor 金鲜花吴建华王胜鹏傅幼林赵梅
Owner 传化智联股份有限公司
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