CN115819806A - Preparation method of cationic starch granules - Google Patents
Preparation method of cationic starch granules Download PDFInfo
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- CN115819806A CN115819806A CN202211684097.3A CN202211684097A CN115819806A CN 115819806 A CN115819806 A CN 115819806A CN 202211684097 A CN202211684097 A CN 202211684097A CN 115819806 A CN115819806 A CN 115819806A
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- Prior art keywords
- cationic starch
- starch granules
- cationic
- granulator
- drying
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- 229920002472 Starch Polymers 0.000 title claims abstract description 73
- 235000019698 starch Nutrition 0.000 title claims abstract description 73
- 239000008107 starch Substances 0.000 title claims abstract description 72
- 125000002091 cationic group Chemical group 0.000 title claims abstract description 71
- 239000008187 granular material Substances 0.000 title claims abstract description 38
- 238000002360 preparation method Methods 0.000 title abstract description 7
- 238000001035 drying Methods 0.000 claims abstract description 29
- 239000000853 adhesive Substances 0.000 claims abstract description 14
- 230000001070 adhesive effect Effects 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 12
- 238000005469 granulation Methods 0.000 claims abstract description 11
- 230000003179 granulation Effects 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229920003169 water-soluble polymer Polymers 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 14
- 239000000243 solution Substances 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 10
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 8
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 8
- 229920002907 Guar gum Polymers 0.000 claims description 7
- 239000000665 guar gum Substances 0.000 claims description 7
- 229960002154 guar gum Drugs 0.000 claims description 7
- 235000010417 guar gum Nutrition 0.000 claims description 7
- 239000011230 binding agent Substances 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 4
- 239000011259 mixed solution Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000428 dust Substances 0.000 abstract description 3
- 230000008030 elimination Effects 0.000 abstract description 3
- 238000003379 elimination reaction Methods 0.000 abstract description 3
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 238000011068 loading method Methods 0.000 abstract description 2
- 238000010298 pulverizing process Methods 0.000 abstract description 2
- 240000003183 Manihot esculenta Species 0.000 description 6
- 235000016735 Manihot esculenta subsp esculenta Nutrition 0.000 description 6
- 229920002261 Corn starch Polymers 0.000 description 5
- 239000008120 corn starch Substances 0.000 description 5
- 229920001592 potato starch Polymers 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O ammonium group Chemical group [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 2
- 125000001453 quaternary ammonium group Chemical group 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- -1 tertiary amino alkyl ether Chemical class 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 125000001302 tertiary amino group Chemical group 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Images
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- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
The invention provides a preparation method of cationic starch granules, which adds a non-ionic water-soluble polymer adhesive in the granulation of the cationic starch granules so as to improve the strength of the cationic starch granules, reduce the pulverization rate, not neutralize the charge of the cationic starch and not influence the dispersibility of the cationic starch in water; and after granulation, low-temperature drying is carried out, and the drying temperature is controlled to be lower than the gelatinization temperature of the cationic starch, so that the cationic starch is prevented from being gelatinized due to high temperature, and the using effect of the cationic starch granules is prevented from being influenced. The method provided by the invention has the advantages of simple process, low investment, good fluidity of the produced cationic starch granules, convenient loading, unloading and charging, elimination of dust pollution, avoidance of environmental pollution and protection of the health of operators.
Description
Technical Field
The invention belongs to the technical field of high polymer materials, and relates to a preparation method of starch granules.
Background
The cationic starch is characterized in that tertiary amino or quaternary ammonium groups are introduced into starch macromolecules to endow the starch with cationic characteristics; cationic starches are mainly of two kinds: one is starch tertiary amino alkyl ether; the other is a quaternary ammonium starch ether.
Cationic starch slurries are commonly used in paper, textile and other industries where the positive charge of cationic starch causes it to bind to negatively charged substrates and to adsorb and retain other negatively charged additives to the substrate. Especially in the process of processing cotton fiber, the friction between the raw material and metal parts causes the raw material to have negative charge, which is more serious for hydrophobic synthetic fiber raw material, if cationic starch slurry with positive charge is used for sizing, not only good adhesive force is obtained, but also the static electricity elimination effect is obtained. At present, cationic starch slurry is prepared by heating cationic starch and water to more than 60 ℃, but the existing cationic starch is a powdery product, and a large amount of dust is generated during packaging, unloading and charging, so that the environment is polluted, and the health of operators is seriously influenced.
Disclosure of Invention
In order to solve the problems described in the background art, the invention provides a preparation method of cationic starch granules.
The preparation method comprises the following steps:
step one, mixing powdery cationic starch, water and a binder according to a weight ratio of 60-100:0-30:0-10, and uniformly mixing to obtain a mixed material;
and step two, adding the mixed material into a granulator for granulation, drying the obtained particles, and controlling the drying temperature to be lower than the gelatinization temperature of the cationic starch to obtain the cationic starch granules.
Further, the adhesive is a nonionic water-soluble polymer adhesive.
In the first step, the binder is at least one of starch paste, polyvinyl alcohol solution and guar gum solution.
Furthermore, the adhesive is a mixed solution of polyvinyl alcohol and guar gum with the weight ratio of 3:4. When the binder is used in this ratio, the cationic starch granules obtained are more dispersible.
Further, in the second step, the granulator is a rolling granulator, an extrusion granulator or a stamping granulator.
Furthermore, in the second step, the drying temperature is 40-60 ℃, and the drying time is 1.5-3.5h.
Further, in the second step, the particle size of the cationic starch granules is controlled to be 1-10mm, and the bulk density is controlled to be 1.05-1.15g/cm 3 。
Compared with the prior art, the invention adds the non-ionic water-soluble polymer adhesive in the granulation of the cationic starch granules so as to improve the strength of the cationic starch granules, reduce the pulverization rate, not neutralize the charge of the cationic starch and not influence the dispersibility of the cationic starch in water; and after granulation, low-temperature drying is carried out, and the drying temperature is controlled to be lower than the gelatinization temperature of the cationic starch, so that the cationic starch is prevented from being gelatinized due to high temperature, and the using effect of the cationic starch granules is prevented from being influenced. The method provided by the invention has the advantages of simple process, low investment, good fluidity of the produced cationic starch granules, convenient loading, unloading and charging, elimination of dust pollution, avoidance of environmental pollution and protection of the health of operators.
Drawings
FIG. 1 is a photograph of cationic tapioca starch granules prepared according to example 1 of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The invention provides a preparation method of cationic starch granules, which comprises the following steps:
step one, mixing powdery cationic starch, water and a binder according to a weight ratio of 60-100:0-30:0-10, and mixing uniformly to obtain a mixed material.
Wherein the powdery cationic starch is an ether derivative containing amino and ammonium groups obtained by reacting starch with amine compounds, and the nitrogen atoms of the amino and ammonium groups are positively charged, such as cationic corn starch, cationic tapioca starch and cationic potato starch. The adhesive is nonionic water soluble polymer adhesive, specifically, the adhesive is at least one of starch paste, polyvinyl alcohol solution and guar gum solution. And when the adhesive is a mixed solution of polyvinyl alcohol and guar gum with the weight ratio of 3:4, the dispersibility of the finally obtained cationic starch particles is better.
And step two, adding the mixed material into a granulator for granulation, drying the obtained particles, and controlling the drying temperature to be lower than the gelatinization temperature of the cationic starch to obtain the cationic starch granules.
Wherein the granulator is a rolling granulator, an extrusion granulator or a stamping granulator. In the drying process, the drying temperature is 40-60 ℃, and the drying time is 1.5-3.5h. The particle diameter of the cationic starch granules is controlled to be 1-10mm, and the bulk density is controlled to be 1.05-1.15g/cm 3 。
Example 1
Respectively and uniformly mixing 10kg of cationic tapioca starch, 0.6kg of water and 0.5kg of 5wt% starch paste to prepare a mixed material; and adding the mixed material into an extrusion granulator for granulation, and drying the mixture in drying equipment at a set drying temperature of 50 ℃ for 2 hours to obtain the cationic cassava starch granules with the grain diameter of 1-10mm and the bulk density of 1.05-1.15g/cm < 3 >.
Example 2
Respectively taking 5kg of cationic corn starch, 0.4kg of water and 0.3kg of 5wt% polyvinyl alcohol solution, and uniformly mixing to prepare a mixed material; and adding the mixed material into a punching granulator for granulation, and drying the granules for 2.5 hours at the drying temperature of 55 ℃ in drying equipment to obtain the cationic corn starch granules with the grain diameter of 1-10mm and the bulk density of 1.05-1.15g/cm & lt 3 & gt.
Example 3
Respectively and uniformly mixing 8kg of cationic potato starch, 0.4kg of water and 0.6kg of 1wt% guar gum solution to prepare a mixed material; and adding the mixed material into a rolling granulator for granulation, and drying the mixture in drying equipment at a set drying temperature of 52 ℃ for 3 hours to obtain the cationic potato starch granules with the grain diameter of 1-10mm and the bulk density of 1.05-1.15g/cm < 3 >.
Example 4
Respectively taking 15kg of cationic corn starch, 1.0kg of water, 0.4kg of 4wt% starch paste and 0.3kg of 4wt% polyvinyl alcohol solution, and uniformly mixing to prepare a mixed material; and adding the mixed material into a double-roller granulator for granulation, and drying the granules in drying equipment at a set drying temperature of 58 ℃ for 1.5 hours to obtain the cationic corn starch granules with the grain diameter of 1-10mm and the bulk density of 1.05-1.15g/cm < 3 >.
The picture of the cationic tapioca starch granules prepared in example 1 of the invention is shown in fig. 1, and the cationic tapioca starch granules are distributed more uniformly.
The powdery cationic starch and the cationic starch granules prepared from the powdery cationic starch of the above examples are mixed with water respectively, and then tested, and the test results are shown in table 1, and it can be known from the test results that: the performance of the powdery cationic starch is not reduced after the cationic starch granules are prepared.
TABLE 1 summary of test results (95 deg.C)
The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should 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; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present application, and they should be construed as being included in the present application.
Claims (7)
1. A method for preparing cationic starch granules, comprising the steps of:
step one, mixing powdery cationic starch, water and a binder according to a weight ratio of 60-100:0-30:0-10, and uniformly mixing to obtain a mixed material;
and step two, adding the mixed material into a granulator for granulation, drying the obtained particles, and controlling the drying temperature to be lower than the gelatinization temperature of the cationic starch to obtain the cationic starch granules.
2. The method of claim 1, wherein the cationic starch granule comprises: in the first step, the adhesive is a non-ionic water-soluble polymer adhesive.
3. A method of preparing cationic starch granules according to claim 2, wherein: in the first step, the adhesive is at least one of starch paste, polyvinyl alcohol solution and guar gum solution.
4. A method of preparing cationic starch granules according to claim 3, wherein: the adhesive is a mixed solution of polyvinyl alcohol and guar gum with the weight ratio of 3:4.
5. The method of claim 4, wherein the cationic starch granules are prepared by: in the second step, the granulator is a rolling granulator, an extrusion granulator or a stamping granulator.
6. A method of preparing cationic starch granules according to any one of claims 1 to 5, wherein: in the second step, the drying temperature is 40-60 ℃, and the drying time is 1.5-3.5h.
7. The method of claim 6, wherein the cationic starch granule comprises: in the second step, the particle size of the cationic starch particles is controlled to be 1-10mm, and the bulk density is controlled to be 1.05-1.15g/cm 3 。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211684097.3A CN115819806A (en) | 2022-12-27 | 2022-12-27 | Preparation method of cationic starch granules |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211684097.3A CN115819806A (en) | 2022-12-27 | 2022-12-27 | Preparation method of cationic starch granules |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115819806A true CN115819806A (en) | 2023-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211684097.3A Pending CN115819806A (en) | 2022-12-27 | 2022-12-27 | Preparation method of cationic starch granules |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007001999A (en) * | 2005-06-21 | 2007-01-11 | Asahi Kasei Chemicals Corp | Method for producing granule composition |
| CN102823797A (en) * | 2012-08-31 | 2012-12-19 | 胡滨 | Method for preparing starch granules |
| CN104558219A (en) * | 2013-10-28 | 2015-04-29 | 枣庄市德宏淀粉有限公司 | Preparation method of cationic corn starch |
| US20150141525A1 (en) * | 2012-04-27 | 2015-05-21 | Japan Corn Starch Co., Ltd. | Method for producing starch granules, and orally disinitegrating tablet |
| WO2021228899A1 (en) * | 2020-05-11 | 2021-11-18 | Hope Tree Holding Gmbh | Granulate of only natural constitutions; granulate for the manufacture of composable products and method for manufacturing the granulate and the products obtained therefrom |
-
2022
- 2022-12-27 CN CN202211684097.3A patent/CN115819806A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007001999A (en) * | 2005-06-21 | 2007-01-11 | Asahi Kasei Chemicals Corp | Method for producing granule composition |
| US20150141525A1 (en) * | 2012-04-27 | 2015-05-21 | Japan Corn Starch Co., Ltd. | Method for producing starch granules, and orally disinitegrating tablet |
| CN102823797A (en) * | 2012-08-31 | 2012-12-19 | 胡滨 | Method for preparing starch granules |
| CN104558219A (en) * | 2013-10-28 | 2015-04-29 | 枣庄市德宏淀粉有限公司 | Preparation method of cationic corn starch |
| WO2021228899A1 (en) * | 2020-05-11 | 2021-11-18 | Hope Tree Holding Gmbh | Granulate of only natural constitutions; granulate for the manufacture of composable products and method for manufacturing the granulate and the products obtained therefrom |
Non-Patent Citations (2)
| Title |
|---|
| 秦波涛等: "《薯类加工》", vol. 1, 31 January 2001, 中国轻工业出版社, pages: 90 * |
| 童丹等: "《马铃薯变性淀粉加工技术》", vol. 1, 31 October 2015, 武汉大学出版社, pages: 162 - 163 * |
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