Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of dispersant and preparation method thereof

A technology of dispersant and initiator, which is applied in the field of dispersant and its preparation, can solve problems such as inability to effectively disperse calcium soap flocculents, achieve excellent product performance, improve product performance, and improve dispersion performance

Active Publication Date: 2020-09-15
ZHEJIANG JINTA BIOTECH
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a dispersant and its preparation method, which has the advantages of significantly improving the dispersion performance of the suspension and significantly improving product performance, and solves the problem that the existing dispersant cannot effectively Technical Problems of Calcium Soap Flocculus Floating in Dispersed Suspension

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) Add 10 parts by mass of maleic anhydride in a four-necked flask equipped with a thermometer, condenser, dropping funnel and constant speed stirring device, and add 20 parts by mass of deionized water to dissolve simultaneously. In 1 min, 20 parts by mass of 30% sodium hydroxide solution was slowly added dropwise, heated in a water bath, and when the temperature rose to 55°C, 1 part by mass of sodium tungstate, 0.8 parts by mass of ammonium molybdate and 0.5 parts by mass of ammonium vanadate mixed catalyst, then control the rate of addition, drop 8 parts by mass of hydrogen peroxide in 20 minutes, and simultaneously use a 5% sodium hydroxide solution to adjust the pH value, at a temperature of 50 ° C, stirring Speed ​​is 40r / min, react for 1h, the reaction product is extracted with acetone, and after purification, epoxysuccinic acid is obtained;

[0031] (2) The epoxysuccinic acid prepared in step (1) and 3-6 parts by mass of calcium hydroxide initiator are polymeri...

Embodiment 2

[0038](1) add the maleic anhydride of 15 mass parts in the four-necked flask that thermometer, condensing tube, dropping funnel and constant speed stirring device are housed, add the deionized water dissolving of 25 mass parts simultaneously, at stirring speed be 50r / In 1 min, slowly add 30 parts by mass of 30% sodium hydroxide solution dropwise, heat in a water bath, and when the temperature rises to 55°C, add 1.5 parts by mass of sodium tungstate, 1 part by mass of ammonium molybdate and 0.8 parts by mass of ammonium vanadate mixed catalyst, then control the rate of addition, drop 12 parts by mass of hydrogen peroxide within 20min, and simultaneously use a mass fraction of 5% sodium hydroxide solution to adjust the pH value, at a temperature of 60°C, stirring Under the speed of 50r / min, react for 2h, and the reaction product is extracted with acetone, and after purification, epoxysuccinic acid is obtained;

[0039] (2) The epoxysuccinic acid prepared in step (1) and 5 parts...

Embodiment 3

[0046] (1) Add 20 mass parts of maleic anhydride in a four-necked flask equipped with a thermometer, condenser, dropping funnel and constant speed stirring device, and add 30 mass parts of deionized water to dissolve simultaneously, at a stirring speed of 60r / In 1 min, slowly add 40 parts by mass of 30% sodium hydroxide solution dropwise, and heat in a water bath. When the temperature rises to 55°C, add 2 parts by mass of sodium tungstate, 1.2 parts by mass of ammonium molybdate and 1 mass part of ammonium vanadate mixed catalyst, then control the dropping speed, drop 15 mass parts of hydrogen peroxide in 20 minutes, and simultaneously use a mass fraction of 5% sodium hydroxide solution to adjust the pH value, at a temperature of 70 ° C, stirring The speed is 60r / min, react for 3h, and the reaction product is extracted with acetone, and after purification, epoxysuccinic acid is obtained;

[0047] (2) The epoxysuccinic acid prepared in step (1) and 6 parts by mass of calcium h...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a dispersant, which comprises the following raw materials in parts by weight: 10-20 parts of maleic anhydride, 20-40 parts of 30% sodium hydroxide solution, 2.3-4.2 parts of mixed catalyst, 8 parts of hydrogen peroxide -15 parts, 3-6 parts of initiator, 10-20 parts of acrylamide aqueous solution with a mass fraction of 5-20%, 1-1.6 parts of mixed initiator, lauryl alcohol polyoxyethylene ether-15 sodium maleic anhydride monoester 20‑40 parts, 15‑25 parts of diallylamine, 10‑15 parts of sodium persulfate, 8‑12 parts of sodium hydroxide, 10‑15 parts of carbon disulfide, several parts of deionized water, several parts of absolute ethanol, acetone Several copies. The invention also discloses a preparation method of a dispersant, comprising the following steps: first preparing polyepoxysuccinic acid and polyacrylamide respectively, and then preparing polyoxyethylene lauryl ether-15 maleic anhydride monoester sodium and diene Propylamine reacts to prepare a dispersant. The invention has the technical effect of significantly improving the dispersion performance of the suspension, and the preparation method of the invention has the technical effect of significantly improving product performance.

Description

technical field [0001] The invention relates to the technical field of dispersants, in particular to a dispersant and a preparation method thereof. Background technique [0002] Dispersant is a kind of surface active agent with two opposite properties of lipophilicity and hydrophilicity in the molecule, which can uniformly disperse the solid and liquid particles of inorganic and organic pigments that are difficult to dissolve in liquid, and can also prevent the particles from dissolving Sedimentation and coagulation, amphiphilic reagents required to form stable suspensions. [0003] However, the existing dispersants have the technical problem that they cannot effectively disperse the calcium soap flocculents floating out of the suspension, and they cannot significantly improve the dispersion performance of the suspension and the performance of the product. technical issues. Contents of the invention [0004] Technical issues resolved [0005] Aiming at the deficiencies ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08F291/12C08F226/04C08F120/56C08F4/22C08F4/20C08G65/22B01F17/22B01F17/42B01F17/16C09K23/16C09K23/22C09K23/42
CPCC08F4/20C08F4/22C08F120/56C08F265/10C08F283/06C08F283/065C08G65/22C09K23/16
Inventor 张向荣张立功
Owner ZHEJIANG JINTA BIOTECH