CN110305230A - A kind of papermaking enhancing starch and preparation method thereof - Google Patents
A kind of papermaking enhancing starch and preparation method thereof Download PDFInfo
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- CN110305230A CN110305230A CN201810228871.7A CN201810228871A CN110305230A CN 110305230 A CN110305230 A CN 110305230A CN 201810228871 A CN201810228871 A CN 201810228871A CN 110305230 A CN110305230 A CN 110305230A
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- starch
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- 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
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
- D21H17/28—Starch
- D21H17/29—Starch cationic
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/18—Reinforcing agents
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- 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 invention discloses a kind of papermaking enhancing starch and preparation method thereof, and method uses mixing reactor, automatically control reaction temperature using circulating hot water, select Jet control spray particle diameter for 30-40 microns.Preparation method of the invention, the reaction of segmented semidry method.This method simple production process, reaction condition is mild, high conversion rate, it is at low cost, no post-processing, no three wastes, using two-part reaction, it increases the reactivity of etherifying agent, reduce the dosage of alkali activator, reduce neutralization link, saved the production overall cost of product.
Description
Technical field
The present invention relates to papermaking chemical product production technologies, and the preparation side of converted starch is prepared particularly with regard to semidry method
Method, by the paper making intensifier and preparation method thereof of cationic starch preparation.
Background technique
1, China's paper industry is in high-speed development period, and China's timber resources is less, existing paper industry mostly use careless class and
Waste paper recycles papermaking, and this raw material papermaking can bring loss of strength, and in order to meet the needs of people are to high-grade paper, papermaking increases
The use of strong agent can solve these problems, and paper strengthening agent is a kind of fine chemicals to enhance paper paper board strength,
Be mainly used in paper production, improve paper intensity and tear-resistant degree.
Starch base paper making intensifier belongs to environment-friendly type renewable resource, and main function mechanism is the combination between reinforcing fiber
Power, to improve fining of the physical strength (tensile strength, tearing strength and bursting strength etc.) of paper without influencing its wet strength
Product.In general, the drying strengthening agent of common paper grade (stock) is mainly starch derivatives and polymeric, starch derivatives class
Drying strengthening agent mainly has cationic starch, amphoteric starch.
2, prior art
The preparation method of existing cationic starch mainly has two kinds of wet process, dry method.Wet process product is high with whiteness, reaction is uniform,
Degree of substitution is easy to get the advantages of control, and however, there are also at high cost, soluble, the reaction time is long, needs subsequent wash
The disadvantage washed and dried, wastewater problem is than more prominent；Dry process reaction is high-efficient, the reaction time is short, without post-processing, no three wastes it is excellent
Point, but the features such as that there is also conversion ratios is low, reaction is uneven, product impurity is more.
Summary of the invention
The object of the present invention is to provide a kind of papermaking enhancing starch and preparation method thereof, can solve in the prior art
Disadvantages mentioned above.
The invention adopts the following technical scheme:
A kind of preparation method of papermaking enhancing starch automatically controls reaction temperature, choosing using circulating hot water using mixing reactor
Selecting Jet control spray particle diameter is 30-40 microns.
Itself the following steps are included:
Starch is put into reaction kettle, high-speed stirred sprays basic catalyst after 1 minute, 50 DEG C -90 DEG C are warming up under stirring, is stirred
Mix speed 1000RPM-3000RPM；
Etherifying agent is added thereto, enters alkaline reagent, is dissolved in water after mixing；
Said mixture is stirred by second, mixing time 2-3h, and 50 DEG C -90 DEG C of whipping temp, mixing speed
1000RPM-1500RPM, as obtained cationic starch.
Etherifying agent additive amount is starch 3%-5%,
The additive amount of alkaline reagent is the 1.0%-3.0% of starch quality, is added after water solution being made into mass percent as 20%-
40%, mass concentration is the mass percent of the starch and water.
A kind of papermaking enhancing starch, is prepared by above-mentioned preparation method.
It is cationic starch that papermaking, which enhances starch,.
The starch that papermaking enhances starch is ative starch, cationic etherifying agent, sodium hydroxide.
The degree of substitution that papermaking enhances starch is 0.028-0.040%.
The ative starch is cassava ative starch.
The etherifying agent is the chloro- 2- hydroxypropyl methyl ammonium chloride of 3-；The basic catalyst is concentration 2.25-2.30% hydrogen
Sodium hydroxide solution.
The invention has the advantages that preparation method of the invention, the reaction of segmented semidry method.This method simple production process,
Reaction condition is mild, high conversion rate, at low cost, and no post-processing, no three wastes increase the anti-of etherifying agent using two-part reaction
The dosage answered activity, reduce alkali activator, reduces neutralization link, has saved the production overall cost of product.
Specific embodiment
The principles and features of the present invention are described below, and the given examples are served only to explain the present invention, and non-limiting
The range of invention.
The present invention may be implemented various change and have diversified form, will herein be described in detail realize example (or
Embodiment), but must not therefore limit the invention to specific announcement form, thought of the invention and technical scope included one
Shear, equipollent or even substitute should all be considered as the scope of the present invention.
Term used herein is only to illustrate specific implementation example (or embodiment) and use, and must not therefore limit to this hair
It is bright.Unless can significantly be distinguish in the pulse of sentence, otherwise singular manifestation mode also includes the situation of plural number.This Shen
The terms such as " comprising " please or " having " are only referred to the feature for determining to record on specification, number, step, movement, constituent element, zero
The presence of part or their combination is not construed as eliminating one or more other feature in advance, number, step, move
Work, constituent element, the presence of part or their combination or the presence of additional possibility.
Unless in addition give different definition, otherwise all arts as used herein including technology or scientific term
Meaning represented by language is identical with the meaning that the people in the technical field of the invention with general knowledge usually understand.One
As have in dictionary the meaning of defined term that should be interpreted and the meaning according to possessed by the article pulse of the relevant technologies
Unanimously, it defines unless clearly giving in this application, otherwise singularly or excessively must not make an explanation to formalism.
" first " recorded in this specification, " second " etc. only indicate mutually different constituent element, not by manufacturing sequence
Limitation, detailed description of the invention and its title in claims may be inconsistent.
The specific embodiment that present invention is further explained below:
A kind of preparation method of papermaking enhancing starch automatically controls reaction temperature, choosing using circulating hot water using mixing reactor
Selecting Jet control spray particle diameter is 30-40 microns.
Itself the following steps are included:
Starch is put into reaction kettle, high-speed stirred sprays basic catalyst after 1 minute, 50 DEG C -90 DEG C are warming up under stirring, is stirred
Mix speed 1000RPM-3000RPM；
Etherifying agent is added thereto, enters alkaline reagent, is dissolved in water after mixing；
Said mixture is stirred by second, mixing time 2-3h, and 50 DEG C -90 DEG C of whipping temp, mixing speed
1000RPM-1500RPM, as obtained cationic starch.
Etherifying agent additive amount is starch 3%-5%,
The additive amount of alkaline reagent is the 1.0%-3.0% of starch quality, is added after water solution being made into mass percent as 20%-
40%, mass concentration is the mass percent of the starch and water.
A kind of papermaking enhancing starch, is prepared by above-mentioned preparation method.
It is cationic starch that papermaking, which enhances starch,.
The starch that papermaking enhances starch is ative starch, cationic etherifying agent, sodium hydroxide.
The degree of substitution that papermaking enhances starch is 0.028-0.040%.
The ative starch is cassava ative starch.
The etherifying agent is the chloro- 2- hydroxypropyl methyl ammonium chloride of 3-；The basic catalyst is concentration 2.25-2.30% hydrogen
Sodium hydroxide solution.
In order to overcome the defect of two kinds of reactor products of wet process and dry method, the object of the present invention is to provide a kind of cationic starches
Preparation method, segmented semidry method reaction.This method simple production process, reaction condition is mild, high conversion rate, at low cost,
Without post-processing, no three wastes.Using two-part reaction, increases the reactivity of etherifying agent, reduces the dosage of alkali activator,
Reduce neutralization link, saves the production overall cost of product.
The technological process of production
The preparation method of the enhanced cationic starch of segmented Semi-dry process includes the following steps:
The key equipment of present system configuration is mixing reactor, it, which has, mixes and react the device being combined into one, and is used
Circulating hot water automatically controls reaction temperature, selects Jet control spray particle diameter for 30-40 microns to overcome solution to meet starch knot grain
The problem of, speed-change control device medical fluid is configured according to reaction mechanism and is controlled using automatic gauge, solves in reaction process and reacts
The technical issues of uneven and knot burl block.Specific reaction step
(1) starch is put into reaction kettle, high-speed stirred sprays basic catalyst after 1 minute, 50 DEG C -90 is warming up under stirring
DEG C, mixing speed 1000RPM-3000RPM.
The etherifying agent additive amount is starch 3%-5%, and the additive amount of alkaline reagent is the 1.0%-3.0% of starch quality,
It is added after water and solution is made into mass percent as 20%-40%, the mass concentration is the mass percent of the starch and water.
(2) it is stirred through mixture by second, mixing time 2-3h, 50 DEG C -90 DEG C of whipping temp, mixing speed
1000RPM-1500RPM.As obtained cationic starch.
A kind of papermaking enhancing starch, it is characterised in that including following raw material: ative starch, cationic etherifying agent, sodium hydroxide.
Degree of substitution is 0.028-0.040%.
The preparation method of a kind of high conversion cationic starch provided by the present invention, in conjunction with two kinds of productions of dry method and wet process
The advantages of product react, improves reaction temperature, improves the efficiency of etherifying agent etherification reaction, in reaction process, dissociate alkali number compared with
It is few, reduce neutralization link.
It reacts in temperature-rise period, moisture evaporation reduces dehydration link, to reduce the discharge and starch loss of sewage.
Cationic starch class reinforcing agent is starch-based material, and raw material is easy to get, environment-friendly degradable.
Case study on implementation 1
1200kg cassava ative starch dry powder is put into feed bin, then mixing channel is slowly transported to by scroll feeder, is added simultaneously
The sodium hydroxide solution of 210kg water, the chloro- 2- hydroxypropyl methyl ammonium chloride solution of the 3- of 36kg and 12kg5% mixes, then again into
Row stirs for the first time, and the speed of stirring is 1000RPM for the first time, and first time mixing time 30s, first time whipping temp is 25
DEG C, it is under preventing starch cake high speed 1500RPM from stirring, the chloro- 2- hydroxypropyl methyl ammonium chloride solution of 3- is fast after mixture is made
Speed sprinkling, at 45 DEG C of reaction temperature, etherifying agent is mixed with starch, basic catalyst, is prevented from reacting in starch conversion and be opened
Hydrolysis before beginning.
67 DEG C of insulation reaction 2h are warming up in reaction kettle, mixing speed 1400RPM obtains cationic starch.
Case study on implementation 2
2000kg cassava ative starch dry powder is put into feed bin, then mixing channel is slowly transported to by scroll feeder, is added simultaneously
The sodium hydroxide solution of 380kg water, the chloro- 2- hydroxypropyl methyl ammonium chloride solution of the 3- of 48kg and 20kg5% mixes, then again into
Row stirs for the first time, and the speed of stirring is 1000RPM for the first time, and first time mixing time 30s, first time whipping temp is 25
DEG C, it is under preventing starch cake high speed 1800RPM from stirring, the chloro- 2- hydroxypropyl methyl ammonium chloride solution of 3- is fast after mixture is made
Speed sprinkling, at 45 DEG C of reaction temperature, etherifying agent is mixed with starch, basic catalyst, is prevented from reacting in starch conversion and be opened
Hydrolysis before beginning.
67 DEG C of insulation reaction 2h are warming up in reaction kettle, mixing speed 1500RPM obtains cationic starch.
Case study on implementation 3
1000kg cassava ative starch dry powder is put into feed bin, then mixing channel is slowly transported to by scroll feeder, is added simultaneously
The sodium hydroxide solution of 180kg water, the chloro- 2- hydroxypropyl methyl ammonium chloride solution of the 3- of 30kg and 10kg5% mixes, then again into
Row stirs for the first time, and the speed of stirring is 1000RPM for the first time, and first time mixing time 30s, first time whipping temp is 25
DEG C, it is under preventing starch cake high speed 1500RPM from stirring, the chloro- 2- hydroxypropyl methyl ammonium chloride solution of 3- is fast after mixture is made
Speed sprinkling, at 45 DEG C of reaction temperature, etherifying agent is mixed with starch, basic catalyst, is prevented from reacting in starch conversion and be opened
Hydrolysis before beginning.
67 DEG C of insulation reaction 2h are warming up in reaction kettle, mixing speed 1400RPM obtains cationic starch.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of preparation method of the papermaking of claim 1 enhancing starch, which is characterized in that mixing reactor is used, using following
Ring hot water automatically controls reaction temperature, selects Jet control spray particle diameter for 30-40 microns.
2. the preparation method of the papermaking according to claim 1 of claim 2 enhancing starch, which is characterized in that it includes
Following steps:
Starch is put into reaction kettle, high-speed stirred sprays basic catalyst after 1 minute, 50 DEG C -90 DEG C are warming up under stirring, is stirred
Mix speed 1000RPM-3000RPM；
Etherifying agent is added thereto, enters alkaline reagent, is dissolved in water after mixing；
Said mixture is stirred by second, mixing time 2-3h, and 50 DEG C -90 DEG C of whipping temp, mixing speed
1000RPM-1500RPM, as obtained cationic starch.
3. the preparation method of the papermaking according to claim 2 of claim 3 enhancing starch, which is characterized in that etherifying agent
Additive amount is starch 3%-5%.
4. the preparation method of the papermaking according to claim 3 of claim 4 enhancing starch, which is characterized in that alkalinity examination
The additive amount of agent is the 1.0%-3.0% of starch quality, is added after water solution being made into mass percent as 20%-40%, quality is dense
Degree is the mass percent of the starch and water.
5. a kind of papermaking of claim 5 enhances starch, which is characterized in that it passes through such as any one of Claims 1-4 institute
The preparation method stated is prepared.
6. claim 6 according to claim 5 papermaking enhance starch, which is characterized in that papermaking enhance starch be sun from
Sub- starch.
7. the papermaking according to claim 6 of claim 7 enhances starch, which is characterized in that the shallow lake of papermaking enhancing starch
Powder is ative starch, cationic etherifying agent, sodium hydroxide.
8. the papermaking according to claim 7 of claim 8 enhances starch, which is characterized in that papermaking enhancing starch takes
Dai Du is 0.028-0.040%.
9. the papermaking according to any one of claim 6-8 of claim 9 enhances starch, which is characterized in that
The ative starch is cassava ative starch.
10. the papermaking according to claim 9 of claim 10 enhances starch, which is characterized in that the etherifying agent is 3-
Chloro- 2- hydroxypropyl methyl ammonium chloride；The basic catalyst is concentration 2.25-2.30% sodium hydroxide solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810228871.7A CN110305230A (en) | 2018-03-20 | 2018-03-20 | A kind of papermaking enhancing starch and preparation method thereof |
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| CN201810228871.7A CN110305230A (en) | 2018-03-20 | 2018-03-20 | A kind of papermaking enhancing starch and preparation method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1352196A (en) * | 2001-11-27 | 2002-06-05 | 岳阳纸业股份有限公司 | Process for preparing quaternary ammonium cation starch by semi-dry method |
| CN102775508A (en) * | 2012-08-24 | 2012-11-14 | 兖州熙来精细化工有限公司 | Production technique of cationic starch |
| CN104140469A (en) * | 2014-07-22 | 2014-11-12 | 金东纸业（江苏）股份有限公司 | Preparation method and device for cationic starch solution and paper |
| CN105131137A (en) * | 2015-08-03 | 2015-12-09 | 海南金海浆纸业有限公司 | Cationic starch and preparation method thereof, and papermaking reinforcing agent prepared from cationic starch and preparation method thereof |
| CN107488236A (en) * | 2017-09-21 | 2017-12-19 | 华北水利水电大学 | A kind of preparation method of cationic starch |
-
2018
- 2018-03-20 CN CN201810228871.7A patent/CN110305230A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1352196A (en) * | 2001-11-27 | 2002-06-05 | 岳阳纸业股份有限公司 | Process for preparing quaternary ammonium cation starch by semi-dry method |
| CN102775508A (en) * | 2012-08-24 | 2012-11-14 | 兖州熙来精细化工有限公司 | Production technique of cationic starch |
| CN104140469A (en) * | 2014-07-22 | 2014-11-12 | 金东纸业（江苏）股份有限公司 | Preparation method and device for cationic starch solution and paper |
| CN105131137A (en) * | 2015-08-03 | 2015-12-09 | 海南金海浆纸业有限公司 | Cationic starch and preparation method thereof, and papermaking reinforcing agent prepared from cationic starch and preparation method thereof |
| CN107488236A (en) * | 2017-09-21 | 2017-12-19 | 华北水利水电大学 | A kind of preparation method of cationic starch |
Non-Patent Citations (1)
| Title |
|---|
| 沙力争主编: "《造纸技术实用教程》", 31 August 2017, 中国轻工业出版社 * |
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