CN102964504B - Thickening agent and preparation method thereof - Google Patents
Thickening agent and preparation method thereof Download PDFInfo
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- CN102964504B CN102964504B CN201210484754.XA CN201210484754A CN102964504B CN 102964504 B CN102964504 B CN 102964504B CN 201210484754 A CN201210484754 A CN 201210484754A CN 102964504 B CN102964504 B CN 102964504B
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- thickening agent
- thickening material
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Abstract
The invention discloses a thickening agent. The structure formula of the thickening agent is shown in the specification, wherein n is equal to 10-15, m is equal to 8-20, and n and m are integers. The preparation of the thickening agent comprises the following steps of: mixing crylic acid, N, N'-methylene bisacrylamide and 1-dodecanethiol and regulating a pH value to 6.5-7.5 at a low temperature; adding kerosene, sorbide oleate, azodiisobutyronitrile and octadecyl acrylate under the protection of nitrogen, emulsifying, warming and reacting; finally, adding polyoxyethylene sorbitan oleate for reverse emulsification, discharging and instantly obtaining a salt resistant thickening agent. A small amount of octadecyl hydrophobic long chain is introduced on an ammonium polyacrylate main chain, so that a thickening agent with better temperature resistance and salt resistance can be obtained. Through the hydrophobic association action among the variety of polymer molecules, macromolecule chains are cross-linked to form a space net structure with certain strength, so that the thickening agent is provided with great hydrodynamic volume and very strong viscosity enhancement property; and the inorganic salt resistance and temperature resistance performances are enhanced through the reversible space net structure formed by the hydrophobic association action.
Description
Technical field
The invention belongs to thickening material technical field, be specifically related to a kind of thickening material and preparation method thereof.
Background technology
Acrylic thickener is a class efficient thickeners of developing in recent years, and its thickening effectiveness and over-all properties are all better, is widely used in textile printing and dyeing, leather finish, papermaking paint, building coating, oil field and the fields such as crystalline substance of making up.
In textile printing and dyeing, thickening material can be used for the preparation of printing gum, to limit the imbibition of dyestuff, in stamp process, plays an important role.At present, on market, the salt tolerant effect of common thickening material is poor, and in printing with reactive dye, usually can add people's neutral salt, therefore common thickening material can not meet industrial application requirement
Summary of the invention
The technical problem that the present invention mainly solves is: a kind of temperature tolerance, the better thickening material of salt tolerance.
The technical scheme mainly providing of the present invention: a kind of thickening material, its structural formula is:
Wherein, n=10 ~ 15, m=8 ~ 20, and n, m are integer.
Second technical problem to be solved by this invention is that a kind of preparation method of thickening material is provided.
For solving second technical problem, the technical solution used in the present invention is: a kind of preparation method of thickening material, the steps include:
In reactor, add vinylformic acid, N, N ＇-methylene-bisacrylamide, Dodecyl Mercaptan, stir reaction solution to be cooled to-10 ~ 0 ℃, with ammoniacal liquor, regulates pH=6.5 ~ 7.5; Under nitrogen protection, add kerosene, sorbitol anhydride oleate, Diisopropyl azodicarboxylate, octadecyl acrylate, emulsification 50 ~ 60min; Be warming up to 60 ~ 70 ℃, reaction 2.5 ~ 4h; Finally add polyoxyethylene sorbitan monooleate rp-emulsification 60 ~ 80min, discharging obtains haloduric thickener.
Mole proportioning between described component is:
Vinylformic acid: N, N ＇-methylene-bisacrylamide: Dodecyl Mercaptan: kerosene: sorbitol anhydride oleate: Diisopropyl azodicarboxylate: octadecyl acrylate: polyoxyethylene sorbitan monooleate=2.0 ~ 3.0:1.0:0.05 ~ 0.08:5.0 ~ 7.0:2.3 ~ 4.0:0.02 ~ 0.05:1.2 ~ 1.6:1.8 ~ 2.6.
Described ammoniacal liquor is that mass concentration is 30 ± 2% ammonia aqueous solution.
Beneficial effect of the present invention is: on ammonium polyacrylate main chain, introduce a small amount of octadecyl hydrophobicity long-chain, can obtain temperature tolerance, the better thickening material of salt tolerance.The intermolecular hydrophobic association effect of this base polymer, can make macromolecular chain be cross-linked to form to have the space reticulated structure of some strength, make it have very large hydrodynamic volume and the very strong glutinous ability of increasing, and the Invertible Spaces reticulated structure that this hydrophobic association effect forms resistance to inorganic salt and resistance to temperature performance have been strengthened.
Embodiment
Be described in further detail in conjunction with specific embodiments, make advantage of the present invention more obvious.Should be appreciated that, content is wherein with explaining, and absolutely not protection scope of the present invention is construed as limiting.The experimental technique of unreceipted actual conditions in the following example, conventionally according to normal condition, or the condition of advising according to manufacturer is carried out.
Embodiment 1
Four-hole boiling flask is placed in to-10～0 ℃ of ice-water baths, adds 2.5mol vinylformic acid, 1molN, N ＇-methylene-bisacrylamide, 0.05mol Dodecyl Mercaptan, dripping ammoniacal liquor to the solution PH that 4.2mol concentration is 30% is 6.5; Under nitrogen protection, add 6.0mol kerosene, 2.5mol sorbitol anhydride oleate, 0.02mol Diisopropyl azodicarboxylate, 1.4mol octadecyl acrylate, emulsify at a high speed 50min; Be warming up to 60 ~ 65 ℃, reaction 3h; Finally add 2.1mol polyoxyethylene sorbitan monooleate rp-emulsification 60min, discharging obtains haloduric thickener.
Embodiment 2
Four-hole boiling flask is placed in to-10～0 ℃ of ice-water baths, adds 5.2mol vinylformic acid, 2molN, N ＇-methylene-bisacrylamide, 0.01mol Dodecyl Mercaptan, dripping ammoniacal liquor to the solution PH that 8.2mol concentration is 30% is 7.0; Under nitrogen protection, add 12mol kerosene, 6.0mol sorbitol anhydride oleate, 0.06mol Diisopropyl azodicarboxylate, 2.6mol octadecyl acrylate, emulsify at a high speed 60min; Be warming up to 60-65 ℃, reaction 3.5h; Finally add 4.2mol polyoxyethylene sorbitan monooleate rp-emulsification 60min, discharging obtains haloduric thickener.
Claims (1)
1. a preparation method for thickening material, the steps include:
In reactor, add vinylformic acid, N, N ＇-methylene-bisacrylamide, Dodecyl Mercaptan, stir reaction solution to be cooled to-10 ~ 0 ℃, with ammoniacal liquor, regulates pH=6.5～7.5; Under nitrogen protection, add kerosene, sorbitol anhydride oleate, Diisopropyl azodicarboxylate, octadecyl acrylate, emulsification 50 ~ 60 min; Be warming up to 60 ~ 70 ℃, reaction 2.5 ~ 4h; Finally add polyoxyethylene sorbitan monooleate rp-emulsification 60 ~ 80min, discharging obtains thickening material;
Described thickening material, its structural formula is:
Wherein, n=10 ~ 15, m=8 ~ 20, and n, m are integer;
Mole proportioning between described component is:
Vinylformic acid: N, N ＇-methylene-bisacrylamide: Dodecyl Mercaptan: kerosene: sorbitol anhydride oleate: Diisopropyl azodicarboxylate: octadecyl acrylate: polyoxyethylene sorbitan monooleate=2.0 ~ 3.0:1.0: 0.05 ~ 0.08:5.0 ~ 7.0:2.3 ~ 4.0:0.02 ~ 0.05:1.2 ~ 1.6:1.8 ~ 2.6;
Described ammoniacal liquor is that mass concentration is 30% ammonia aqueous solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210484754.XA CN102964504B (en) | 2012-11-26 | 2012-11-26 | Thickening agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210484754.XA CN102964504B (en) | 2012-11-26 | 2012-11-26 | Thickening agent and preparation method thereof |
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| Publication Number | Publication Date |
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| CN102964504A CN102964504A (en) | 2013-03-13 |
| CN102964504B true CN102964504B (en) | 2014-12-10 |
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| CN201210484754.XA Expired - Fee Related CN102964504B (en) | 2012-11-26 | 2012-11-26 | Thickening agent and preparation method thereof |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105735007A (en) * | 2016-05-04 | 2016-07-06 | 合肥聚合辐化技术有限公司 | Textile printing thickening agent and production process thereof |
| CN106519102B (en) * | 2016-11-17 | 2019-02-01 | 广州天赐高新材料股份有限公司 | A kind of acrylic acid modified polymer of salt-resistant type and preparation method thereof |
| CN109778566A (en) * | 2017-11-10 | 2019-05-21 | 丹阳市易通安全技术服务有限公司 | A kind of thickener |
| CN110876987B (en) * | 2019-12-05 | 2021-09-03 | 西南科技大学 | Synchronous enhancer for efficient flotation and separation of refractory zinc oxide ore and preparation and application thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102558425B (en) * | 2010-12-08 | 2014-03-12 | 中国海洋石油总公司 | Tackifier, drilling fluid containing tackifier, and stock solution of drilling fluid |
| CN102675558B (en) * | 2012-06-08 | 2014-02-26 | 苏州大学 | Salt-resistive thickening agent as well as preparation method and application thereof |
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