CN113444185A - High-viscosity hydroxypropyl starch ether and preparation method thereof - Google Patents
High-viscosity hydroxypropyl starch ether and preparation method thereof Download PDFInfo
- Publication number
- CN113444185A CN113444185A CN202010213240.5A CN202010213240A CN113444185A CN 113444185 A CN113444185 A CN 113444185A CN 202010213240 A CN202010213240 A CN 202010213240A CN 113444185 A CN113444185 A CN 113444185A
- Authority
- CN
- China
- Prior art keywords
- parts
- hydroxypropyl starch
- starch ether
- glyoxal
- hydrochloric acid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 239000001341 hydroxy propyl starch Substances 0.000 title claims abstract description 33
- 235000013828 hydroxypropyl starch Nutrition 0.000 title claims abstract description 33
- 238000002360 preparation method Methods 0.000 title description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 27
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 26
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 26
- LEQAOMBKQFMDFZ-UHFFFAOYSA-N glyoxal Chemical compound O=CC=O LEQAOMBKQFMDFZ-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000002994 raw material Substances 0.000 claims abstract description 14
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229920001592 potato starch Polymers 0.000 claims abstract description 13
- 229940015043 glyoxal Drugs 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000008367 deionised water Substances 0.000 claims abstract description 5
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 5
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 12
- 238000001035 drying Methods 0.000 claims description 8
- 238000006386 neutralization reaction Methods 0.000 claims description 8
- 238000005406 washing Methods 0.000 claims description 8
- 238000006266 etherification reaction Methods 0.000 claims description 6
- 239000003513 alkali Substances 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 238000004806 packaging method and process Methods 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000003431 cross linking reagent Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000007613 environmental effect Effects 0.000 abstract 1
- 230000007794 irritation Effects 0.000 abstract 1
- 231100000053 low toxicity Toxicity 0.000 abstract 1
- 229920002472 Starch Polymers 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 239000008107 starch Substances 0.000 description 5
- 235000019698 starch Nutrition 0.000 description 5
- 229920000881 Modified starch Polymers 0.000 description 1
- 239000004368 Modified starch Substances 0.000 description 1
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000019426 modified starch Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B31/00—Preparation of derivatives of starch
- C08B31/08—Ethers
- C08B31/12—Ethers having alkyl or cycloalkyl radicals substituted by heteroatoms, e.g. hydroxyalkyl or carboxyalkyl starch
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B31/00—Preparation of derivatives of starch
- C08B31/003—Crosslinking of starch
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
The high-viscosity hydroxypropyl starch ether comprises the following raw materials in parts by weight: 10 parts of potato starch; 2-5 parts of propylene oxide; 1-2.5 parts of sodium hydroxide; 50-200 parts of ethanol; 0.2-1 part of glyoxal; 0.5-2 parts of hydrochloric acid; 3-5 parts of deionized water. The raw materials used in the invention have low toxicity, low irritation, environmental protection and high efficiency; the invention uses potato starch as raw material to prepare the hydroxypropyl starch ether, thereby greatly reducing the manufacturing cost of the hydroxypropyl starch ether, enlarging the production capacity and enlarging the application range of the hydroxypropyl starch ether.
Description
Technical Field
The invention relates to the technical field of preparation of hydroxypropyl starch ether, and particularly relates to high-viscosity hydroxypropyl starch ether and a preparation method thereof.
Background
Hydroxypropyl starch ether (HPS) is a white powder, has good fluidity and good water solubility, and the aqueous solution is transparent and colorless and has good stability. Stable to acid and alkali, the burnt temperature is lower than that of the original starch, and the cold and hot viscosity change is more stable than that of the original starch. The viscosity is not affected when the composition is mixed with salt, sucrose, etc. After etherification, both the ice-melt stability and the transparency are improved.
The hydroxypropyl starch is chemically modified starch, and is prepared by carrying out etherification reaction on propylene oxide and starch to replace hydroxyl in a starch high molecular structure to form etherified starch; the current preparation cost of the hydroxypropyl starch ether is high, and the production capacity and the application range of the hydroxypropyl starch ether cannot be expanded.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the high-viscosity hydroxypropyl starch ether, which is prepared by using potato starch as a raw material, so that the preparation cost of the hydroxypropyl starch ether is greatly reduced, the production capacity of the hydroxypropyl starch ether is expanded, and the application range of the hydroxypropyl starch ether is expanded.
In order to achieve the purpose, the invention is realized by the following technical scheme:
the high-viscosity hydroxypropyl starch ether comprises the following raw materials in parts by weight:
10 parts of potato starch;
2-5 parts of propylene oxide;
1-2.5 parts of sodium hydroxide;
50-200 parts of ethanol;
0.2-1 part of glyoxal;
0.5-2 parts of hydrochloric acid;
3-5 parts of deionized water.
Preferably, the propylene oxide is used as an etherifying agent, and the glyoxal is used as a cross-linking agent to prepare the hydroxypropyl starch ether.
The invention also discloses a preparation method of the high-viscosity hydroxypropyl starch ether, which sequentially comprises the following steps:
(1) mixing raw materials: adding ethanol, water and sodium hydroxide into a reaction kettle, dissolving alkali, heating to 70 ℃, and preserving heat for 30 minutes;
(2) alkalization: putting ethanol, hydrochloric acid and potato starch into the reaction kettle, vacuumizing, pressurizing, and carrying out an alkalization reaction at 35-45 ℃; after the alkalization is finished, adding propylene oxide and glyoxal, and keeping for 30 minutes;
(3) etherification: raising the temperature to 70-80 ℃, and preserving the heat for 4.01-5 hours;
(4) neutralization and washing: cooling to below 40 ℃, adding hydrochloric acid for neutralization, and washing;
(5) centrifugal drying: and (4) centrifugally conveying the materials into a dryer through a horizontal spiral centrifugal machine, drying the materials, crushing the dried materials and packaging.
The invention provides high-viscosity hydroxypropyl starch ether and a preparation method thereof. The method has the following beneficial effects: the invention uses potato starch as raw material to prepare the hydroxypropyl starch ether, thereby greatly reducing the manufacturing cost of the hydroxypropyl starch ether, enlarging the production capacity and enlarging the application range of the hydroxypropyl starch ether.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below.
The first embodiment provides high-viscosity hydroxypropyl starch ether which comprises the following raw materials in parts by weight:
10 parts of potato starch;
5 parts of propylene oxide;
2 parts of sodium hydroxide;
100 parts of ethanol;
0.5 part of glyoxal;
2 parts of hydrochloric acid;
5 parts of deionized water.
The preparation method comprises the following specific steps:
(1) mixing raw materials: adding ethanol, water and sodium hydroxide into a reaction kettle, dissolving alkali, heating to 70 ℃, and preserving heat for 30 minutes;
(2) alkalization: putting ethanol, hydrochloric acid and potato starch into the reaction kettle, vacuumizing, pressurizing, and carrying out an alkalization reaction at 45 ℃; after the alkalization is finished, adding propylene oxide and glyoxal, and keeping for 30 minutes;
(3) etherification: raising the temperature to 80 ℃, and preserving the temperature for 5 hours;
(4) neutralization and washing: cooling to below 40 ℃, adding hydrochloric acid for neutralization, and washing;
(5) centrifugal drying: and (4) centrifugally conveying the materials into a dryer through a horizontal spiral centrifugal machine, drying the materials, crushing the dried materials and packaging.
Example two, a high viscosity hydroxypropyl starch ether, which comprises the following raw materials in parts by weight:
10 parts of potato starch;
2 parts of propylene oxide;
1 part of sodium hydroxide;
50 parts of ethanol;
0.2 part of glyoxal;
0.5 part of hydrochloric acid;
3 parts of deionized water.
The preparation method comprises the following specific steps:
(1) mixing raw materials: adding ethanol, water and sodium hydroxide into a reaction kettle, dissolving alkali, heating to 70 ℃, and preserving heat for 30 minutes;
(2) alkalization: putting ethanol, hydrochloric acid and potato starch into the reaction kettle, vacuumizing, pressurizing, and carrying out an alkalization reaction at 35 ℃; after the alkalization is finished, adding propylene oxide and glyoxal, and keeping for 30 minutes;
(3) etherification: the temperature is raised to 70 ℃, and the temperature is kept for 4.5 hours;
(4) neutralization and washing: cooling to below 40 ℃, adding hydrochloric acid for neutralization, and washing;
5) centrifugal drying: and (4) centrifugally conveying the materials into a dryer through a horizontal spiral centrifugal machine, drying the materials, crushing the dried materials and packaging.
Wherein, the epoxypropane is used as an etherifying agent, and the glyoxal is used as a cross-linking agent to prepare the hydroxypropyl starch ether. The invention uses potato starch as raw material to prepare the hydroxypropyl starch ether, thereby greatly reducing the manufacturing cost of the hydroxypropyl starch ether, enlarging the production capacity and enlarging the application range of the hydroxypropyl starch ether.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (3)
1. The high-viscosity hydroxypropyl starch ether comprises the following raw materials in parts by weight:
10 parts of potato starch;
2-5 parts of propylene oxide;
1-2.5 parts of sodium hydroxide;
50-200 parts of ethanol;
0.2-1 part of glyoxal;
0.5-2 parts of hydrochloric acid;
3-5 parts of deionized water.
2. The high viscosity hydroxypropyl starch ether of claim 1 wherein: the propylene oxide is used as an etherifying agent, and the glyoxal is used as a cross-linking agent to prepare the hydroxypropyl starch ether.
3. The method for preparing high viscosity hydroxypropyl starch ether according to claim 1, comprising the following steps in sequence:
(1) mixing raw materials: adding ethanol, water and sodium hydroxide into a reaction kettle, dissolving alkali, heating to 70 ℃, and preserving heat for 30 minutes;
(2) alkalization: putting ethanol, hydrochloric acid and potato starch into the reaction kettle, vacuumizing, pressurizing, and carrying out an alkalization reaction at 35-45 ℃; after the alkalization is finished, adding propylene oxide and glyoxal, and keeping for 30 minutes;
(3) etherification: raising the temperature to 70-80 ℃, and preserving the heat for 4.01-5 hours;
(4) neutralization and washing: cooling to below 40 ℃, adding hydrochloric acid for neutralization, and washing;
(5) centrifugal drying: and (4) centrifugally conveying the materials into a dryer through a horizontal spiral centrifugal machine, drying the materials, crushing the dried materials and packaging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010213240.5A CN113444185A (en) | 2020-03-24 | 2020-03-24 | High-viscosity hydroxypropyl starch ether and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010213240.5A CN113444185A (en) | 2020-03-24 | 2020-03-24 | High-viscosity hydroxypropyl starch ether and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113444185A true CN113444185A (en) | 2021-09-28 |
Family
ID=77806467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010213240.5A Pending CN113444185A (en) | 2020-03-24 | 2020-03-24 | High-viscosity hydroxypropyl starch ether and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113444185A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119143892A (en) * | 2024-11-18 | 2024-12-17 | 山东光大赛路新材料科技有限公司 | Preparation method of low-cost potato hydroxypropyl starch ether |
| NL2035788B1 (en) | 2023-09-13 | 2025-03-21 | Shandong Eton New Mat Co Ltd | Modified hydroxylpropyl starch and preparation method therefor and application thereof |
-
2020
- 2020-03-24 CN CN202010213240.5A patent/CN113444185A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL2035788B1 (en) | 2023-09-13 | 2025-03-21 | Shandong Eton New Mat Co Ltd | Modified hydroxylpropyl starch and preparation method therefor and application thereof |
| CN119143892A (en) * | 2024-11-18 | 2024-12-17 | 山东光大赛路新材料科技有限公司 | Preparation method of low-cost potato hydroxypropyl starch ether |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113444185A (en) | High-viscosity hydroxypropyl starch ether and preparation method thereof | |
| CN101187081B (en) | Regenerated cellulose spinning solution and its solvent and preparation method | |
| CN104817645B (en) | One kind oxidation hydroxypropyl carboxy methyl starch size and preparation method | |
| CN114702601A (en) | Production process of hydroxypropyl methyl cellulose and hydroxypropyl methyl cellulose | |
| JP2025060971A (en) | Process for producing crosslinked cellulose ethers | |
| CN102816247A (en) | Preparation method of ultra-low-viscosity hydroxypropyl methyl cellulose | |
| CN102603307B (en) | Ceramic extrusion molding composition and binder | |
| CN103270051B (en) | The method preparing hydroxyalkyl starch | |
| US6294008B1 (en) | Haze-free cellulose ether capsules and process for making | |
| CN105693872B (en) | A kind of preparation method of salt-resistance carboxymethyl starch | |
| CN104497154A (en) | Preparation method of hydroxy butyl starch ether or hydroxy butyl modified starch ether | |
| CN101357994B (en) | Carboxymethyl wood flour with high degree of substitution and preparation method thereof | |
| CN105777917A (en) | Preparation method of carboxymethyl starch used for reactive dye printing | |
| CN102690356A (en) | Preparation method of hydroxyl-ethyl methyl cellulose | |
| CN106188314B (en) | A kind of preparation method of modified mixed cellulose ethers and the product obtained by this method | |
| CN104892773A (en) | Preparation method of high-substitution-degree sodium carboxymethylcellulose | |
| CN108424465A (en) | A kind of preparation method of hydroxyethyl cellulose | |
| WO1997030091A1 (en) | Starch derivatives and its manufacturing method | |
| KR20100118801A (en) | Cross-linked polysaccharide containing additive composition and method of preparing the same | |
| US2834777A (en) | Methods of treating cellulose ethers | |
| EP3567058A1 (en) | Hypromellose phthalate and method for producing the same | |
| CN110256594B (en) | A kind of nonionic cassia polysaccharide derivative and its preparation method and application | |
| CN106496338A (en) | A kind of preparation technology of molten paste method high-substitution carboxymethyl modified starch | |
| CN104231117B (en) | A kind of method for preparing carboxymethyl inulin promoted by ionic liquid | |
| CN112707969A (en) | Production process of sodium carboxymethylcellulose by self-esterification reaction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210928 |