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Technology for synthesizing water-soluble polyacrylate through implosion

A technology of polyacrylate and acrylate, which is applied in the production process field of synthesizing water-soluble polyacrylate by one-time feeding method, can solve the problems of large production equipment capital and site investment, complex production process, and high energy consumption, and achieve production equipment The effect of less capital investment, avoiding explosion accidents, and small production site

Inactive Publication Date: 2016-10-12
陈跃
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

This production process requires a large investment in production equipment and space, and the production process is complicated, time-consuming, and energy-consuming.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] Below in conjunction with example the present invention will be further described.

[0011] Take the process of synthesizing 15.66 kg of water-soluble polyacrylate with 30% solid content as an example:

[0012] Prepare the following tools first: a high-density polyethylene cylindrical open barrel with a diameter of 600mm and a height of 900mm, and a 1.5-meter-long stainless steel stirring tube. Three 5-liter plastic measuring cups numbered 1#, 2#, and 3# and one 20-liter plastic barrel numbered 4#.

[0013] The preparation process is as follows:

[0014] 1. Weigh 2400 grams of acrylic acid and add to 1# measuring cup to make 1# material;

[0015] 2. Weigh 1000 grams of 2-hydroxyethyl acrylate and add to 2# measuring cup to make 2# material;

[0016] 3. Weigh 100 grams of sodium bisulfite, add 200 grams of ammonium persulfate into a 3# measuring cup, add 1000 grams of deionized water to obtain an oxidation-reduction system initiator, and obtain a 3# material;

[0017...

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Abstract

The invention relates to a preparing technology for water-soluble polyacrylate to mainly solve the problems that in the technology of preparing water-soluble polyacrylate with a semicontinuous method at present, fund investment of production equipment and sites is large, the process is complex, long time is consumed, and energy consumption is high. According to the technical scheme, the technology comprises the steps that raw materials are put into an open high-density polyethylene vessel with a one-time material adding method, the surface energy of a reaction of acrylate monomers is reduced under the action of an oxidation-reduction system initiator, the temperature of a polymerization reaction is reached through acid-base neutralization heat emitting, acrylate monomers are initiated to start the polymerization reaction, heat is further emitted, and finally implosion of acrylate monomers is initiated; the polymerization reaction gradually stops after the implosion reaction is finished, and water-soluble polyacrylate is obtained. The technology has the advantages that fund investment for production equipment is small, the production site is small, and no coal or electricity energy is consumed; the production technology is simple, easy to control and high in output efficiency.

Description

technical field [0001] The invention relates to a preparation process of water-soluble polyacrylate, specifically a production process for synthesizing water-soluble polyacrylate by using water as a solvent and adopting a one-time feeding method. Background technique [0002] Water-soluble polyacrylate has been paid more and more attention due to its environmental protection and low cost. Currently, the production of water-soluble polyacrylate for coatings mainly adopts a semi-continuous process, which needs to be equipped with a mixer, heating and Cooling temperature control system, feeding and dropping device. When the deionized water and emulsifier first added in the reaction kettle are heated to the polymerization temperature, the monomer or the emulsified monomer and the initiator are added dropwise or segmentally, and after the addition is completed, the temperature is maintained at a constant temperature for several hours. React under stirring state, keep warm, and t...

Claims

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Application Information

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IPC IPC(8): C08F220/06C08F220/28C08F2/10
CPCC08F2/10C08F220/06C08F220/281
Inventor 陈跃
Owner 陈跃
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