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Multifunctional polymer and preparation method and application thereof

A polymer and multi-functional technology, applied in chemical instruments and methods, descaling and water softening, liquid carbon-containing fuels, etc., can solve problems such as poor performance, insufficient raw materials, poor slurry stability, etc., to reduce deposition, run The effect of low cost and low surface viscosity

Active Publication Date: 2019-06-18
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 preparation method and application thereof
  • Multifunctional polymer and preparation method and application thereof
  • Multifunctional polymer and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A multifunctional copolymer, used as a scale inhibitor or coal water slurry additive, is composed of the following substances in the following parts by weight:

[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, and 69 parts of deionized water.

[0034] 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 at 75℃. Add the initiator (potassium persulfate) and the prepared tannic acid solution dropwise at the same time, start the electromagnetic stirrer and stir evenly, the stirring speed is 300 rpm, the stirring time is 3.5h, the reaction temperature is 75 ℃, and the red brown three Meta-graft copolymer, that is, multifunctional copolymer.

[0035] The red-brown ternary graft copolymer prepared in Example 1 was used as a scale inhibitor ...

Embodiment 2

[0039] A multifunctional copolymer, used as a scale inhibitor or coal water slurry additive, is composed of the following substances in the following parts by weight:

[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, and 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 at 80℃. Add the initiator (potassium persulfate) and the prepared tannic acid solution dropwise at the same time, start the electromagnetic stirrer and stir evenly, the stirring speed is 300 rpm, the stirring time is 3.5h, the reaction temperature is 80 ℃, and the red-brown three Meta-graft copolymer, that is, multifunctional copolymer.

[0042] The red-brown ternary graft copolymer prepared in Example 2 was used as a scale inhibitor ...

Embodiment 3

[0045] A multifunctional copolymer, used as a scale inhibitor or coal water slurry additive, is composed of the following substances in the following parts by weight:

[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, and 69 parts of deionized water.

[0047] 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 at 75°C. Add the initiator (potassium persulfate) and the prepared tannic acid solution dropwise at the same time, start the electromagnetic stirrer and stir evenly, the stirring speed is 300 rpm, the stirring time is 3 hours, the reaction temperature is 75 ℃, and the red-brown ternary Graft copolymer, that is, multifunctional copolymer.

[0048] The red-brown ternary graft copolymer prepared in Example 3 was applied as a scale inhibi...

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Abstract

The invention relates to a high molecular compound, in particular to a multifunctional polymer and a preparation method and application thereof. The multifunctional polymer is prepared by subjecting itaconic acid, 2-acrylamido-2-methylpropanesulfonic acid and tannic acid to oxidation and carrying out free radical polymerization. The multifunctional polymer has a structural formula shown in the description and has a molecular weight of four magnitudes. Through molecular design, massive hydroxyl groups are provided; coordinative aggregation of the various functional groups, such as carboxyl group, amido group, sulfo group, hydroxyl group and aromatic rings, is achieved; coaction of the groups gives rise to high hydrophilicity, adsorbing performance and scale-inhibiting performance; as a scale inhibitor, the multifunctional polymer helps effectively remove CaCO3 and CaSO4 scale and plays an important role of reducing operating cost of a reverse osmosis system and extending the life of equipment; the multifunctional polymer has excellent viscosity-reducing and dispersing properties; as a water-coal-slurry additive, the multifunctional polymer provides high concentration, low viscosityand good stability for the prepared water coal slurry. The invention also provides the preparation method and application of the multifunctional polymer.

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 water resource crisis 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 the chemical equipment, a 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 scale-forming ions. After repeated use, it is easy to produce inorganic calcium scale, such as calcium carbonate, calcium sulfate, and barium sulfate. These scales form deposits on the inner surfa...

Claims

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Application Information

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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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