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Preparation method for dispersing agent for ink or paint

A technology of dispersant and paint, applied in the direction of coating, etc., can solve problems such as formulation failure, and achieve the effect of wide application, good performance and good synergistic compatibility

Active Publication Date: 2014-02-19
南雄市汉科化工科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practical applications, in some inks and paint formulation systems, the sodium tridecyl sulfosuccinate solution with moisture and low-carbon alcohols cannot be added, and a small amount of moisture and low-carbon alcohols are used in the formula. The key factor for formulation failure, therefore, it is necessary to develop a solution of sodium tridecyl sulfosuccinate with little or no residual alcohol, water and other impurities

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Assemble the reactor as a distillation system, add 200g of active substance content of 70% alcohol solution of tridecyl sodium sulfosuccinate, 100g of propylene glycol methyl ether acetate, stir and heat to above 110°C, distill for 2h to nothing When the water is released, the collected alcohol water and propylene glycol methyl ether acetate solution are recovered separately for treatment, and the Karl Fischer method is used to measure the moisture content <2%, and the heating is stopped. Determination of direct two-phase titration method "Determination of finished product content Measure the content of sodium tridecyl sulfosuccinate, add propylene glycol methyl ether acetate to adjust the content to 70%, and obtain a light yellow transparent liquid.

[0011] The new dispersant prepared by the reaction is measured for its dispersive power according to "CB / T 5550-1998 Method for Determination of Dispersive Power of Surfactants", and the obtained dispersant has a dispersiv...

Embodiment 2

[0013] Assemble the reactor as a distillation system, add 1200g active matter content of 70% alcohol solution of tridecyl sodium sulfosuccinate, 500g propylene glycol methyl ether acetate, stir and heat to above 110°C, distill for 2h to no When the water is released, the collected alcohol water and propylene glycol methyl ether acetate solution are recovered separately for treatment, and the Karl Fischer method is used to measure the moisture content <2%, and the heating is stopped. Determination of direct two-phase titration method "Determination of finished product content Measure the content of tridecyl sodium sulfosuccinate, add propylene glycol methyl ether acetate to adjust the content to 60%, and obtain a light yellow transparent liquid.

[0014] The new dispersant prepared by the reaction is measured for its dispersive power according to "CB / T 5550-1998 Method for Determination of Dispersive Power of Surfactant", and the obtained dispersant has a dispersive power of 101...

Embodiment 3

[0016] Add 100kg of alcohol solution of sodium tridecyl sulfosuccinate with active substance content of 70% and 50kg of propylene glycol ether acetate to a 200L pilot test kettle with distillation vacuum feeding system, stir and heat to above 110°C , distilled for 2 hours until no water comes out, the collected alcohol water and propylene glycol ether acetate solution are recovered separately for treatment, and the Karl Fischer method is used to measure the moisture content of <2%, stop heating, according to "GB / T 5173-1985 Detergent Determination of active substances in middle anions Direct two-phase titration method "Determination of finished product content Measure the content of sodium tridecyl sulfosuccinate, add propylene glycol methyl ether acetate to adjust the content to 70%, and obtain a light yellow transparent liquid.

[0017] The new dispersant prepared by the reaction is measured for its dispersive power according to "CB / T 5550-1998 Method for Determination of Dis...

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Abstract

The invention discloses a preparation method for a dispersing agent for ink or paint. The method comprises the following steps of: mixing a mixed solution of sodium tridecyl sulfosuccinate and alcohol, and propylene glycol methyl ether acetate in a weight ratio of (0.5-3):1, distilling at the temperature of between 100 and 120 DEG C to remove alcohol water, and adjusting the weight concentration range of the sodium tridecyl sulfosuccinate to be 40 to 75 percent by using the propylene glycol methyl ether acetate to obtain the sodium tridecyl sulfosuccinate dispersing agent. The sodium tridecyl sulfosuccinate and the propylene glycol methyl ether acetate are compounded aiming at the excellent performance and defects in using of the two materials, and the novel dispersing agent for the ink or paint, which has excellent performance can be obtained by aftertreatment.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a dispersant for ink or paint. Background technique [0002] Sodium tridecyl sulfosuccinate is a highly oil-soluble hydrophobic surfactant with excellent performance. Its CMC value is very low. It can disperse resins, pigments, inks, dyes, etc. into organic systems. Is a very effective dispersant, wetting agent and stabilizer; it is uniquely effective at imparting oil solubility to hydrophilic pigments. Sodium tridecyl sulfosuccinate is added to organic systems such as mineral oil, which can provide better plastic viscosity, initial shear and thixotropy of the system; whether it is sprayed on the pigment for wetting and mixing, or When added to organic systems, hydrophilic pigments can be used in oily systems. Sodium tridecyl sulfosuccinate has not been listed as a substance harmful to the environment by the country. This product is fully biodegradable. According to data, 66%...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D7/12
Inventor 王汉锋
Owner 南雄市汉科化工科技有限公司