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Acidizing fluid thickener synthetic process based on control of reaction time

A technology of acid thickener and reaction time, which is applied in the direction of coating, etc., can solve the problems of low industrial concentration and lack of economies of scale, and achieve the effects of low synthesis cost, short synthesis time and simple operation

Inactive Publication Date: 2013-04-17
何阳
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Problems solved by technology

[0019] Studies have shown that in my country's thickener enterprises, the industry concentration has always been low, and the lack of economies of scale

Method used

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  • Acidizing fluid thickener synthetic process based on control of reaction time

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Embodiment

[0045] The acid liquid thickener synthesis technique based on the control reaction time that the present invention relates to, its concrete steps are as follows:

[0046] (a) at first, carry out the purification of reaction monomer;

[0047] (b) preparation of initiator solution;

[0048] (c) according to proportioning, take the 2-methyl-2-acrylamidopropanesulfonic acid solid of certain quality and be dissolved in distilled water;

[0049] (d) adding a certain amount of acrylic acid and dimethyl diallyl ammonium chloride to the solution of step (c), and fully dissolving the three reaction monomers;

[0050] (e) After mixing evenly, adjust the pH value of the solution;

[0051] (f) then move the reaction mixed solution into a constant temperature reaction vessel, exhaust oxygen and stir;

[0052] (g) adding the initiator solution dropwise;

[0053] (h) Finally, under the protection of an inert gas, the reaction system is heated to carry out polymerization reaction for 4-5 h...

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Abstract

The invention discloses an acidizing fluid thickener synthetic process based on control of reaction time. The process comprises the following steps: (a) purifying a reaction monomer; (b) preparing an initiator liquor; (c) weighing a certain amount of 2-methyl-2-acrylamidyl propanesulfonic acid solid and dissolving the solid in distilled water; (d) adding a certain amount of acrylic acid and dimethyl diallyl ammonium chloride into the liquor in the step (c), and dissolving adequately; (e) adjusting the pH value of the liquor; (f) shifting the mixed liquid for reaction to a reaction container, deoxygenating and stirring; (g) adding the initiator liquor; and (h) heating the reaction system for polymerization reaction for 4-5 hours to obtain a target product. According to the process provided by the invention, the acidizing fluid thickener can be successfully synthesized, and the synthetic process is simple in step, simple to operate, short in synthetic time, high in synthetic efficiency and low in synthetic cost. Performance parameters of the synthetic product are superior to those of current acidizing fluid thickener, and the conversion rate and intrinsic viscosity are improved by controlling the polymerization reaction time.

Description

technical field [0001] The invention relates to a synthesis process of acid liquid thickener based on controlling reaction time. Background technique [0002] Thickener is a kind of rheological additive, which can not only thicken the coating and prevent sagging during construction, but also endow the coating with excellent mechanical properties and storage stability. It is a very important class of additives for water-based paints with low viscosity. [0003] At present, there are many kinds of thickeners available in the market, mainly including inorganic thickeners, celluloses, polyacrylates and associative polyurethane thickeners. Cellulosic thickeners have a long history of use and there are many varieties, including methyl cellulose, carboxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl methyl cellulose, etc., which used to be the mainstream of thickeners. The most commonly used of these is hydroxyethyl cellulose. Polyacrylate thickeners can basically be di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F226/02C08F220/06C08F220/58C08F2/00C09D7/12
Inventor 何阳
Owner 何阳
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