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Multifunctional polymer and its preparation method and application

A polymer, multi-functional technology, applied in chemical instruments and methods, descaling and water softening, fuel, etc., can solve problems such as poor performance, poor slurry stability, insufficient raw materials, etc., to achieve good hydrolysis resistance and production cost. Low, enhanced hydrophilicity

Active Publication Date: 2021-09-28
SHANDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are only naphthalenesulfonate condensates with various substituents on the market, and there are still shortcomings such as insufficient raw materials, poor performance, and poor slurry stability.

Method used

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  • Multifunctional polymer and its preparation method and application
  • Multifunctional polymer and its preparation method and application
  • Multifunctional polymer and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A kind of multifunctional copolymer, as antiscalant or coal water slurry additive, is reacted according to following weight parts by following material:

[0033] 9 parts of itaconic acid (IA), 27 parts of 2-acrylamido-2-methylpropanesulfonic acid (AMPS), 4 parts of tannic acid (TA), 0.6 parts of potassium persulfate, 69 parts of deionized water.

[0034] Mix tannic acid with deionized water to obtain a tannic acid solution, and add itaconic acid (IA) and 2-acrylamido-2-methylpropanesulfonic acid (AMPS) into the reaction kettle in sequence in proportion. Add the initiator (potassium persulfate) and the prepared tannic acid solution dropwise at the same time, start the electromagnetic stirrer to stir evenly, the stirring speed is 300 rpm, the stirring time is 3.5h, and the reaction temperature is 75°C to obtain reddish-brown three Meta-graft copolymers, that is, multifunctional copolymers.

[0035]The reddish-brown ternary graft copolymer prepared in Example 1 was used a...

Embodiment 2

[0039] A kind of multifunctional copolymer, as antiscalant or coal water slurry additive, is reacted according to following weight parts by following material:

[0040] 9 parts of itaconic acid (IA), 27 parts of 2-acrylamido-2-methylpropanesulfonic acid (AMPS), 4 parts of tannic acid (TA), 0.6 parts of potassium persulfate, 69 parts of deionized water.

[0041] Mix tannic acid with deionized water to obtain a tannic acid solution, add itaconic acid (IA) and 2-acrylamido-2-methylpropanesulfonic acid (AMPS) in proportion to the reaction kettle in sequence, at 80°C Add the initiator (potassium persulfate) and the prepared tannic acid solution dropwise at the same time, start the electromagnetic stirrer to stir evenly, the stirring speed is 300 rpm, the stirring time is 3.5h, and the reaction temperature is 80°C to obtain reddish-brown three Meta-graft copolymers, that is, multifunctional copolymers.

[0042] The reddish-brown ternary graft copolymer prepared in Example 2 was use...

Embodiment 3

[0045] A kind of multifunctional copolymer, as antiscalant or coal water slurry additive, is reacted according to following weight parts by following material:

[0046] 9 parts of itaconic acid (IA), 27 parts of 2-acrylamido-2-methylpropanesulfonic acid (AMPS), 4 parts of tannic acid (TA), 0.6 parts of potassium persulfate, 69 parts of deionized water.

[0047] Mix tannic acid with deionized water to obtain a tannic acid solution, and add itaconic acid (IA) and 2-acrylamido-2-methylpropanesulfonic acid (AMPS) into the reaction kettle in sequence in proportion. Add the initiator (potassium persulfate) and the prepared tannic acid solution dropwise at the same time, start the electromagnetic stirrer to stir evenly, the stirring speed is 300 rpm, the stirring time is 3h, and the reaction temperature is 75°C to obtain a reddish-brown ternary compound Graft copolymers, that is, multifunctional copolymers.

[0048] The reddish-brown ternary graft copolymer prepared in Example 3 was...

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Abstract

The invention relates to a polymer compound, in particular to a multifunctional polymer and its preparation method and application. Taking itaconic acid, 2-acrylamido-2-methylpropanesulfonic acid and tannic acid as raw materials, carry out oxidation reaction and free radical polymerization to obtain multifunctional polymer; its structural formula is as follows: described multifunctional polymer The molecular weight is four orders of magnitude. Through molecular design, it contains a large number of hydroxyl groups, and at the same time realizes the coordinated aggregation of various functional groups such as carboxyl groups, amido groups, sulfonic acid groups, hydroxyl groups and aromatic rings. Through the joint action of each group, it has strong hydrophilicity, adsorption performance and Antiscalant properties, as an antiscalant, effectively eliminates CaCO 3 and CaSO 4 It plays an important role in reducing the operating cost of the reverse osmosis system and prolonging the life of the equipment; it has excellent viscosity reduction and dispersion properties, and as an additive for coal-water slurry, it makes the prepared coal-water slurry high in concentration, low in viscosity and good in stability; The invention also provides its preparation method and application.

Description

technical field [0001] The invention relates to a polymer compound, in particular to a multifunctional polymer and its preparation method and application. Background technique [0002] Water is an important natural resource for human survival and development. In recent years, with the increase of population, the rapid development of industry and the increasingly serious environmental pollution, the crisis of water resources has been greatly exacerbated. In the production process of modern industry, a large amount of waste heat is generated. In order to maintain the proper temperature of chemical equipment, cooling water system is usually used for cooling. However, the continuous circulation and evaporation of cooling water will inevitably lead to an increase in the concentration of scaling ions, and it is easy to generate inorganic calcium scale after repeated use, such as calcium carbonate, calcium sulfate, barium sulfate, etc. These scales form deposits on the inner sur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/58C08F222/02C08F8/00C02F5/12C10L1/24
Inventor 张曙光崔川川
Owner SHANDONG UNIV OF TECH
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