Special dispersant compound for iron phthalein green and preparation thereof

A composition and dispersant technology, applied in the direction of organic dyes, etc., can solve the problems of high cost, high price, large dosage, etc.

Inactive Publication Date: 2008-10-01
SHANGHAI HUAYI FINE CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are also many dispersants specially used for phthalocyanine blue at home and abroad, but there are generally problems of large dosage and high price. It is acceptable to make water-based colorants, but the cost of making pigments is too high.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Weigh 14g of acrylic acid, 3g of butyl acrylate, 4g of isooctyl acrylate, 3g of N-methylolacrylamide, and 1g of ethoxylated propylene into a beaker, stir and dissolve evenly to obtain a mixed monomer for use. Add 0.5 g of ammonium persulfate into 5 g of deionized water and stir to dissolve it before use. Add 33.5g of deionized water into a 1000ml four-neck flask equipped with a condenser, an electric stirrer, a thermometer, and a dropping funnel, heat up and stir, and when the temperature rises to 82°C, start to drop the initiator and mixed monomer simultaneously , maintain the reaction temperature at 86-90°C, drop it in 4-6 hours, and keep it warm for 1 hour after the drop. After 1 hour, slowly add 26g of 30% liquid caustic soda, stir for 20 minutes after the addition, add 10g of octylphenol polyoxyethylene ether and stir evenly, and filter the material through 100 mesh to obtain a dispersant. The product is a colorless transparent liquid with a solid content of 38%, ...

Embodiment 2

[0037] Weigh 15g of 2-butenoic acid, 4g of butyl 2-butenoate, 4.5g of isooctyl 2-butenoate, 4g of acrylamide, and 1.5g of vinyl ethyl ether in a beaker, stir and dissolve evenly to obtain a mixed monomer stand-by. Add 0.75 g of dibenzoyl peroxide into the above-mentioned mixed monomers, stir and dissolve, and set aside for use. Add 31.25g of deionized water into a 1000ml four-neck flask equipped with a condenser, an electric stirrer, a thermometer, and a dropping funnel, heat up and stir, and when the temperature rises to 82°C, start to drop the initiator and mixed monomer simultaneously , maintain the reaction temperature at 86-90°C, drop it in 4-6 hours, and keep it warm for 1 hour after the drop. After 1 hour, slowly add 28g of 30% liquid caustic soda, stir for 20 minutes after the addition, add 11g of nonylphenol polyoxyethylene ether and stir evenly, filter and discharge the material with 100 mesh to obtain a dispersant. The product is a colorless transparent liquid wit...

Embodiment 3

[0039] 16g of 2-methyl-2-pentenoic acid, 5g of butyl 2-methyl-2-pentenoate, 5g of isooctyl 2-methyl-2-pentenoate, 5g of N-isopropylacrylamide 1. Weigh 2 g of ethoxylated propylene in a beaker, stir and dissolve to obtain a mixed monomer for use. Add 1 g of azobisisobutyronitrile into the above-mentioned mixed monomers and stir to dissolve it before use. Add 24g of deionized water to a 1000ml four-neck flask equipped with a condenser, an electric stirrer, a thermometer, and a dropping funnel, heat up and stir, and when the temperature rises to 82°C, start dropping the initiator and the mixed monomer simultaneously. Keep the reaction temperature at 86-90°C, drop it in 4-6 hours, and keep it warm for 1 hour after the drop. After 1 hour, slowly add 30g of 30% liquid caustic soda, stir for 20 minutes after the addition, add 12g of octylphenol polyoxyethylene ether and stir evenly, filter the material through 100 mesh to obtain a dispersant. The product is a colorless transparent ...

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Abstract

The invention relates to a dispersant composition exclusively for iron phthalocyanine green, and according to weight consists of 10 to 20 percent of unsaturated fatty acid, two unsaturated fatty acid ester respectively with 1 to 5 percent, 1 to 5 percent of unsaturated amide, 1 to 5 percent of functional monomer, 10 to 15 percent of alkylphenol polypolyoxyethylene ether, 0.1 to 1 percent of initiator, and 20 to 40 percent of liquid alkine with the concentration of 30 percent, and the remained is deioned water. The preparation process of the dispersant composition comprises: 1) the preparation process of mixed monomer; 2) preparing initiator liquid; 3) the preparation process of the dispersant composition through polymerization. The water solution of iron phthalocyanine green dye prepared from the invention can pass Europe standard, thus possessing broad market prospect.

Description

technical field [0001] The present invention relates to the pigment industry in the field of chemical industry, that is, a special additive for a specific pigment, in particular to a green pigment for cement, concrete and mortar products—a special dispersant composition of iron phthalein green and its preparation method. Background technique [0002] Iron phthalo green has become the first choice green pigment for cement coloring due to its unique light resistance, weather resistance, alkali resistance, corrosion resistance, high coloring performance, and its low price, and is widely used in concrete and mortar products. The domestic annual production of iron phthalogreen has exceeded 10,000 tons. As we all know, iron phthalo green is a kind of composite pigment, which is prepared by a certain proportion of iron oxide yellow and phthalocyanine blue. However, phthalocyanine blue is an organic pigment with strong hydrophobicity. Blended with iron oxide yellow with strong hyd...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B67/22C09B67/46C08F20/56C08F4/34C08F4/04
Inventor 於宁杨益平
Owner SHANGHAI HUAYI FINE CHEM CO LTD
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