CN102731662B - Preparation method of novel dry-method modified starch - Google Patents
Preparation method of novel dry-method modified starch Download PDFInfo
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- CN102731662B CN102731662B CN201210256068.7A CN201210256068A CN102731662B CN 102731662 B CN102731662 B CN 102731662B CN 201210256068 A CN201210256068 A CN 201210256068A CN 102731662 B CN102731662 B CN 102731662B
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 229920000881 Modified starch Polymers 0.000 title claims abstract description 15
- 239000004368 Modified starch Substances 0.000 title claims abstract description 15
- 235000019426 modified starch Nutrition 0.000 title claims abstract description 15
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 229920002472 Starch Polymers 0.000 claims abstract description 50
- 239000008107 starch Substances 0.000 claims abstract description 50
- 235000019698 starch Nutrition 0.000 claims abstract description 50
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 20
- 239000003381 stabilizer Substances 0.000 claims abstract description 8
- 230000008569 process Effects 0.000 claims abstract description 6
- 238000001035 drying Methods 0.000 claims description 16
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 12
- 238000005360 mashing Methods 0.000 claims description 11
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 6
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 6
- -1 polyoxyethylene Polymers 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 239000002002 slurry Substances 0.000 claims description 5
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 5
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims description 5
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 5
- LCPVQAHEFVXVKT-UHFFFAOYSA-N 2-(2,4-difluorophenoxy)pyridin-3-amine Chemical compound NC1=CC=CN=C1OC1=CC=C(F)C=C1F LCPVQAHEFVXVKT-UHFFFAOYSA-N 0.000 claims description 4
- JRKICGRDRMAZLK-UHFFFAOYSA-L persulfate group Chemical group S(=O)(=O)([O-])OOS(=O)(=O)[O-] JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 claims description 4
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Substances [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 claims description 4
- UGTZMIPZNRIWHX-UHFFFAOYSA-K sodium trimetaphosphate Chemical compound [Na+].[Na+].[Na+].[O-]P1(=O)OP([O-])(=O)OP([O-])(=O)O1 UGTZMIPZNRIWHX-UHFFFAOYSA-K 0.000 claims description 4
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims description 4
- 239000004159 Potassium persulphate Substances 0.000 claims description 2
- 239000004202 carbamide Substances 0.000 claims description 2
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 2
- 235000019394 potassium persulphate Nutrition 0.000 claims description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N urea group Chemical group NC(=O)N XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000009955 starching Methods 0.000 abstract description 6
- 239000000835 fiber Substances 0.000 abstract description 3
- 238000002156 mixing Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 230000003750 conditioning effect Effects 0.000 abstract 2
- 239000003607 modifier Substances 0.000 abstract 2
- 229920002261 Corn starch Polymers 0.000 abstract 1
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- 238000009835 boiling Methods 0.000 abstract 1
- 239000008120 corn starch Substances 0.000 abstract 1
- 238000003912 environmental pollution Methods 0.000 abstract 1
- 239000010842 industrial wastewater Substances 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 210000002151 serous membrane Anatomy 0.000 abstract 1
- 238000009987 spinning Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 238000004513 sizing Methods 0.000 description 5
- 239000004160 Ammonium persulphate Substances 0.000 description 4
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 4
- 235000019395 ammonium persulphate Nutrition 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 238000004925 denaturation Methods 0.000 description 3
- 230000036425 denaturation Effects 0.000 description 3
- 239000004382 Amylase Substances 0.000 description 2
- 102000013142 Amylases Human genes 0.000 description 2
- 108010065511 Amylases Proteins 0.000 description 2
- 235000019418 amylase Nutrition 0.000 description 2
- 239000012752 auxiliary agent Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 240000003183 Manihot esculenta Species 0.000 description 1
- 235000016735 Manihot esculenta subsp esculenta Nutrition 0.000 description 1
- WQZGKKKJIJFFOK-DVKNGEFBSA-N alpha-D-glucose Chemical compound OC[C@H]1O[C@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-DVKNGEFBSA-N 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 229930182478 glucoside Natural products 0.000 description 1
- 150000008131 glucosides Chemical class 0.000 description 1
- 125000002791 glucosyl group Chemical group C1([C@H](O)[C@@H](O)[C@H](O)[C@H](O1)CO)* 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Landscapes
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention relates to a preparation method of novel dry-method modified starch. The preparation method specifically comprises the following steps: directly adding a starch modifier, a flexible conditioning agent and a viscosity stabilizer into the starch, and evenly mixing the materials to obtain the modified starch with the corresponding viscosity. When in use, chemical changes occur on the starch in the boiling process, the pH value of the starch can be regulated to be 6.5-7.5; the starch is corn starch with the viscosity of 42-44mPa.s; calculated by dry starch, the use amount of the starch modifier is 0.01-0.20wt%, the user amount of the flexible conditioning agent is 2.0-7.0wt% and use amount of the viscosity stabilizer is 1.8-6.8wt%. The modified starch can be used for starching spinning warp yarn, has strong adhesive force to fibre, the size viscosity is stable, the pH value is proper and the serous membrane is flexible. The modifying method is simple in operation and low in cost. Most importantly, industrial wastewater is not produced in the whole production process, so that the environmental pollution is greatly reduced. The preparation method has wide development prospect.
Description
Technical field
The preparation method who the present invention relates to a kind of novel Dry process starch, mainly belongs to field of textiles, also can use field for the relevant modified starch such as papermaking, sizing agent.
Background technology
The aboundresources of starch, cheap, as the main slurry of warp sizing, existing long history.Starch is the natural high moleculer eompound being formed by the polycondensation of α-glucose, and glucose unit interconnects by glucoside key.Starch has good adhesivity to hydrophilic natural fiber, also has certain film forming properties, substantially can meet the starching requirement of these fibers.
But because the molecular weight of native starch is too large, after gelatinization, viscosity is too high and have very large fluctuation, and mobility is too poor, is difficult for being penetrated into yarn inside; And the macromolecular chain of starch is to be made up of the surplus base of glucose of ring texture, and the kindliness of molecule is poor, and second-order transition temperature is high, causes serous coat crisp hard.Due to these defects, generally can not directly use, need to carry out the sex change on physics and chemistry to it.
The denatured technology of starch mainly contains two kinds, wet method sex change and Dry process.The denatured technology of wet method, is distributed to (in the product needed methyl alcohol equal solvent having) in water by commodity starch and forms certain density starch milk, makes itself and denaturing agent generation chemical reaction, also needs dehydration, washing, dry after reaction finishes.Dry process technique, directly sprays sex change reagent or adds in commodity starch, and after stirring, thermal treatment in the drying room of comparatively high temps, Denaturation occurs, or directly in mashing off process, chemical transformation occurs.
These two kinds of denatured technologies have pros and cons separately.Wet method denatured technology, denaturation process is more easy to control, product performance are stable, but equipment requirements is higher, the production cycle is long, yield is low, cost is higher, and water of productive use and factory effluent more, the performance of enterprises and ecotope are had to damage.Dry process technique, production unit is simple, with short production cycle, and yield is high, and cost is low, but performance inconsistency is large, and unstable.Particularly, placement for some time even, after 1 month, because the amylolysis agent of selecting is improper or do not select suitable auxiliary agent, can be caused oxidation and the decomposition of decomposition agent self, and viscosity has significantly fluctuation, is not suitable for starching requirement.
Summary of the invention
The object of the invention is to overcome the defect of existing Dry process starch technology, provide a kind of cost more cheap, slurry viscosity is stable, the preparation method of the novel Dry process starch of the pliable and tough superior performance of serous coat.
The preparation method of a kind of novel Dry process starch that the present invention proposes, concrete steps are as follows:
Starch modifying agent, soft readjustment agent and viscosity stabilizer are directly joined in starch and mixed, can obtain the modified starch of corresponding viscosity; When use, there is chemical transformation in modified starch in mashing off process, and to regulate the pH value of slurries be 6.5 ~ 7.5; Wherein: described dry starch is the W-Gum of viscosity at 42 ~ 44mPas, in dry starch, the consumption of starch modifying agent is 0.01 ~ 0.20wt%, and the consumption of soft readjustment agent is 2.0 ~ 7.0wt%, and the consumption of viscosity stabilizer is 1.8 ~ 6.8wt%.
In the present invention, described starch modifying agent is one or more in amylase or persulphate.
In the present invention, described persulphate is the one to multiple kind in ammonium persulphate, Sodium Persulfate or Potassium Persulphate.
In the present invention, described soft readjustment agent is polyoxyethylene glycol.
In the present invention, described viscosity stabilizer is urea or sodium phosphate salt.Described sodium phosphate salt is one to multiple kind in Trisodium trimetaphosphate or Sodium hexametaphosphate 99.
In the present invention, the viscosity of the modified starch of gained is 5 ~ 25mPas.
In the present invention, mashing off is under condition of normal pressure, and the mashing off time is 25 ~ 30 minutes.
Utilize the modified starch that the present invention prepares to be mainly used in textile warp starching, also can use field for the relevant modified starch such as papermaking, sizing agent.
Advantage of the present invention and positively effect have:
1, the present invention is not that only applying starch decomposition agent plays the effect of simple viscosity reduction.The present invention is in utilizing multiple auxiliary agent to play viscosity reduction effect, farthest play the effect of stable viscosity, and improve the crisp hard shortcoming of serous coat, also changed the shortcoming of existing Dry process starch pH value slant acidity, the pH value of slurries is controlled in the acid-base condition of 6.5 ~ 7.5 suitable starchings.
2, compared with the starch of modified starch of the present invention and other Dry process, maximum advantage is stable viscosity, and product was placed after 6 months, and viscosity changes hardly, has broken in the market the dry method starch viscosity large disadvantage that fluctuates in time.
3, modified starch stable performance of the present invention, technological operation is convenient, and the chemical wide material sources of selecting in denaturation process are easy to get, and production process does not produce waste water, waste gas etc., and comprehensive cost is cheap.Product adhesion power is good, stable viscosity, and serous coat is pliable and tough, and overall performance is better than like product, can meet the starching requirement of warp thread.
Embodiment
For better understanding the present invention, below in conjunction with embodiment, the present invention is described further.But the scope of protection of present invention is not limited to the scope that embodiment represents.
embodiment 1:take 28g W-Gum, after testing moisture 13.2%, amounting to into dry starch is 24.30g, adds 0.12% ammonium persulphate, 2.9% polyoxyethylene glycol, and 2.6% Trisodium trimetaphosphate, tested viscosity is 22mPas, viscosity stability is 91%, PH=7.0.Identical sample is placed respectively after 3 months and 6 months, and tested viscosity is 21.5 and 22mPas, and viscosity stability is 90.7% and 91%.
embodiment 2:take 28g W-Gum, after testing moisture 13.2%, amounting to into dry starch is 24.30g, adds 0.09% ammonium persulphate and Sodium Persulfate, 4.9% polyoxyethylene glycol, and 5.0% Sodium hexametaphosphate 99, tested viscosity is 7.5mPas, viscosity stability is 86.7%, PH=7.5.Identical sample is placed respectively after 3 months and 6 months, and tested viscosity is 7 and 7.5mPas, and viscosity stability is 92.9% and 86.7%.
embodiment 3:take 25Kg W-Gum, after testing moisture 13.2%, amounting to into dry starch is 21.70Kg, adds 0.09% ammonium persulphate and Sodium Persulfate, 4.9% polyoxyethylene glycol, and 5.0% Sodium hexametaphosphate 99, tested viscosity is 7mPas, viscosity stability is 92.9%, PH=7.0.The mashing off technique of simulation actual production, by 12% the solid experiment of sizing mixing in 3000L container that contains, after mashing off 30min, hangs a second 8.1s, PH=7.0.Other starch of getting two same viscosity carry out same experiment, hang a second 8.0 ~ 8.2s.Place after 6 months, repeat above experiment, experimental data does not almost change.
embodiment 4:take 25Kg W-Gum, after testing moisture 13.2%, amounting to into dry starch is 21.70Kg, adds 0.03% amylase, 2.9% polyoxyethylene glycol, and 3.5% Trisodium trimetaphosphate and Sodium hexametaphosphate 99, tested viscosity is 6mPas, viscosity stability is 91.7%, PH=7.0.The mashing off technique of simulation actual production, by 12% the solid experiment of sizing mixing in 3000L container that contains, after mashing off 30min, hangs a second 7.1s, PH=7.0.Other starch of getting two same viscosity carry out same experiment, hang a second 7.0 ~ 7.2s.Place after 6 months, repeat above experiment, experimental data does not almost change.
Above-described is only preferential embodiment of the present invention.For the person of ordinary skill of the art, under the premise without departing from the principles of the invention, any improvement of making, such as the replacing of starting material starch, changes tapioca (flour) or yam starch etc. into, and this is also considered as belonging to protection scope of the present invention.
Claims (5)
1. a preparation method for Dry process starch, is characterized in that concrete steps are as follows: starch modifying agent, soft readjustment agent and viscosity stabilizer are directly joined in starch and mixed, can obtain the modified starch of corresponding viscosity; When use, there is chemical transformation in gained modified starch in mashing off process, and to regulate the pH value of slurries be 6.5 ~ 7.5; Wherein: described starch is the W-Gum of viscosity at 42 ~ 44mPas, in dry starch, the consumption of starch modifying agent is 0.01 ~ 0.20wt%, and the consumption of soft readjustment agent is 2.0 ~ 7.0wt%, and the consumption of viscosity stabilizer is 1.8 ~ 6.8wt%; Described starch modifying agent is one or more in persulphate; Described soft readjustment agent is polyoxyethylene glycol; Described viscosity stabilizer is urea or sodium phosphate salt.
2. the preparation method of Dry process starch according to claim 1, is characterized in that described persulphate is the one to multiple kind in Sodium Persulfate or Potassium Persulphate.
3. the preparation method of Dry process starch according to claim 1, is characterized in that described sodium phosphate salt is one to multiple kind in Trisodium trimetaphosphate or Sodium hexametaphosphate 99.
4. the preparation method of Dry process starch according to claim 1, the viscosity that it is characterized in that the modified starch of gained is 5 ~ 25mPas.
5. the preparation method of Dry process starch according to claim 1, is characterized in that mashing off is under condition of normal pressure, and the mashing off time is 25 ~ 30 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210256068.7A CN102731662B (en) | 2012-07-24 | 2012-07-24 | Preparation method of novel dry-method modified starch |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210256068.7A CN102731662B (en) | 2012-07-24 | 2012-07-24 | Preparation method of novel dry-method modified starch |
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| CN102731662A CN102731662A (en) | 2012-10-17 |
| CN102731662B true CN102731662B (en) | 2014-11-26 |
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| CN201210256068.7A Expired - Fee Related CN102731662B (en) | 2012-07-24 | 2012-07-24 | Preparation method of novel dry-method modified starch |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103804699B (en) * | 2014-02-10 | 2016-03-30 | 广西民族大学 | A kind of tapioca (flour) magnetic microsphere and preparation method thereof |
| CN106319959A (en) * | 2016-08-31 | 2017-01-11 | 西达（无锡）生物科技有限公司 | Degradable textile size and preparation method thereof |
| CN108004771A (en) * | 2017-11-14 | 2018-05-08 | 浙江玉帛纺织有限公司 | A kind of environment-friendly size auxiliary agent and preparation method and application |
| CN110258114A (en) * | 2019-07-05 | 2019-09-20 | 老河口光联科技有限公司 | A kind of environment-friendly type spinning sizing agent and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE9600285D0 (en) * | 1996-01-26 | 1996-01-26 | Eka Nobel Ab | Modification of starch |
| CN1781948A (en) * | 2004-12-03 | 2006-06-07 | 诸城兴贸玉米开发有限公司 | Process for producing low viscosity phosphate ester starch by new dry method |
| CN1328290C (en) * | 2004-12-03 | 2007-07-25 | 诸城兴贸玉米开发有限公司 | Process for producing cation starch by dry method |
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