CN103924480B - The formula and preparation method of feature paper grade (stock) reinforcing agent - Google Patents
The formula and preparation method of feature paper grade (stock) reinforcing agent Download PDFInfo
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- CN103924480B CN103924480B CN201410133692.7A CN201410133692A CN103924480B CN 103924480 B CN103924480 B CN 103924480B CN 201410133692 A CN201410133692 A CN 201410133692A CN 103924480 B CN103924480 B CN 103924480B
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Abstract
The invention discloses a kind of formula and preparation method of feature paper grade (stock) reinforcing agent.The formula of the feature paper grade (stock) reinforcing agent, include the component of following weight percentage：Starch 40~60%, charge modifiers 5~30%, grafting agent 1~20%, crosslinking agent 1~15%, sodium hydroxide 1~8%, acid 1~3%.The present invention uses the charge modifiers as active group, one end of product can be made closely to be combined with filler, one end is closely combined with fiber, firmly bundle calcium carbonate and fiber, play calcium carbonate to act on the strong bridge of fiber, improve filler keeps probability, greatly improves first-past retention, in paper dehydration process, without the loss of unnecessary filler and fiber fines.Meanwhile the grafting agent is combined by way of crosslinking with starch molecule, the film forming of product is improved, enhances the toughness and intensity of film, improves the tear resistance of film, greatly enhances the intensity of paper.
Description
Technical field
The present invention relates to paper industry technical field, more particularly to a kind of formula of feature paper grade (stock) reinforcing agent and preparation
Method.
Background technology
In paper industry, as market competition is growing more intense, market is gradually changed into by original extensive market
The competition of product quality and price.Product quality how is improved, reduces the core profit that production cost is related to each papermaking enterprise
Benefit.
Product quality typically improves by following approach in manufacturer, reduces production cost：(1) mass conservation is being ensured
In the case of, by increasing amount of filler, ash content of paper is improved, wood pulp dosage is reduced, so as to reduce cost；(2) matter is being ensured
Measure it is constant in the case of, the long fiber pulp such as few needle slurry with or without high price, broad-leaved slurry, use low price poplar slurry,
The short fibered pulps such as straw pulp, so as to reduce the import dependency degree of wood pulp, reduce cost；(3) situation of paper machine normal operation is being ensured
Under, speed is improved, so as to improve the yield of unit interval, reduces cost.Wherein, reinforcing agent inside plays vital work
With.A kind of good reinforcing agent, loss of strength caused by can not only making up difference slurry, can also be in the case where ensureing product quality
The dosage of filler is improved, the speed of paper machine can also be improved because of the raising of intensity, so as to improve product yield, reduces production
Cost.
The content of the invention
The technical problems to be solved by the invention are to provide that a kind of charge density is big, and flocculation ability is strong, and energy is wrapped up to filler
Power is strong, strong to the adsorption capacity of wood pulp, product good film-forming property, can overcome the disadvantages that because ash improve and caused by paper strength loss,
Can improve the tear-proof degree of paper, improve or ensure product bulk feature paper grade (stock) reinforcing agent formula and preparation side
Method.
In order to solve the above technical problems, the technical scheme is that：The formula of feature paper grade (stock) reinforcing agent, including with
The component of lower weight percentage：Starch 40~60%, charge modifiers 5~30%, grafting agent 1~20%, crosslinking agent 1~
15%th, sodium hydroxide 1~8%, acid 1~3%.
As preferable technical scheme, the formula of the feature paper grade (stock) reinforcing agent, including following weight percentage
Component：Starch 40~50%, charge modifiers 10~25%, grafting agent 10~15%, crosslinking agent 5~10%, sodium hydroxide 3
~8%, acid 1~3%.
As the improvement to above-mentioned technical proposal, the starch is selected from farina, tapioca, cornstarch or small
The mixture of one or more of arbitrary proportions in wheat starch；Described one kind in hydrochloric acid, sulfuric acid, phosphoric acid or oxalic acid of acid or
The mixture of several arbitrary proportions.
As the improvement to above-mentioned technical proposal, the charge modifiers be selected from quaternary amine, tertiary ammonium salt, aluminium polychloride,
The mixture of one or more of arbitrary proportions in acid amides or aluminum sulfate；The grafting agent is selected from methyl acrylate, acrylic acid fourth
One or more of arbitrary proportions in ester, vinylacetate, acrylamide, polyvinylamine, acrylonitrile, styrene or butadiene
Mixture.
As the improvement to above-mentioned technical proposal, the crosslinking agent is selected from sodium trimetaphosphate, POCl3, epoxy chloropropionate
In alkane, formaldehyde, glyoxal, glutaraldehyde, maleic anhydride, mixed acid anhydride, epoxide petroleum base monomer or divinylsulfone
The mixture of one or more of arbitrary proportions.
Present invention also offers the preparation method of above-mentioned feature paper grade (stock) reinforcing agent, comprise the following steps：
(1) surface chargeization is handled：
By the 15~70% of charge modifiers gross weight, it is added in premixing tank, opens stirring；Then it is sodium hydroxide is total
The 10~80% of weight are added in the premixing tank and premixed；Starch is added in blender, starts blender, and by described in
Mixture in premixing tank is injected in blender, mixes 10~30min, and electric charge powder is made；
After adding water to be made into the solution that mass concentration is 5~20% the remaining sodium hydroxide, with the remaining electricity
Lotus modifying agent is well mixed, and electric charge solution is made；
(2) graft crosslinking reacts：
The electric charge powder is added in reactor, is warming up to 50~130 DEG C, reacts 0.5~3 hour, then will
Acid is added in reactor, is discharged after well mixed, and powders mixture is made, is added in the feed hopper of extruder；
Grafting agent is added in reactor, adds water to be made into the solution that mass concentration is 20%, is warming up to 50~80 DEG C, will
The electric charge solution is added in reactor, is warming up to 60~90 DEG C and is reacted, and is 7~9 to pH value, it is molten that grafting agent is made
Liquid；
Extruder is heated up, each warm area temperature of extruder controls respectively：1st~3 area is 50~90 DEG C, and 4th~7 area are
70~150 DEG C, 8th~11 area are 80~150 DEG C；Extruder is started, is grafted agent solution and crosslinking agent by described with charge pump respectively
It is added in extruder；Feeder is started, the powders mixture in feed hopper is even added in extruder and squeezed
Go out, crosslink reaction；
(3) pneumatic conveying drying：
Extruded material is subjected to pneumatic conveying drying by pneumatic drier, pneumatic drier EAT is according to required water
Part control is at 80~130 DEG C；
(4) crush, pack：
The material for drying completion is carried out to cross 80 mesh sieves after crushing, metering packing, product is made.
Wherein：
One or more of the starch in farina, tapioca, cornstarch or wheaten starch are any
The mixture of ratio；
The mixture of one or more of arbitrary proportions of the acid in hydrochloric acid, sulfuric acid, phosphoric acid or oxalic acid；
One or more of the charge modifiers in quaternary amine, tertiary ammonium salt, aluminium polychloride, acid amides or aluminum sulfate
The mixture of arbitrary proportion；
The grafting agent is selected from methyl acrylate, butyl acrylate, vinylacetate, acrylamide, polyvinylamine, propylene
The mixture of one or more of arbitrary proportions in nitrile, styrene or butadiene；
The crosslinking agent is selected from sodium trimetaphosphate, POCl3, epoxychloropropane, formaldehyde, glyoxal, glutaraldehyde, Malaysia
The mixture of one or more of arbitrary proportions in acid anhydrides, mixed acid anhydride, epoxide petroleum base monomer or divinylsulfone.
By adopting the above-described technical solution, the formula of feature paper grade (stock) reinforcing agent, including following weight percentage
Component：Starch 40~60%, charge modifiers 5~30%, grafting agent 1~20%, crosslinking agent 1~15%, sodium hydroxide 1~
8%th, acid 1~3%；The present invention uses the charge modifiers as active group, can make one end of product closely with filler knot
Close, one end is closely combined with fiber, firmly bundlees calcium carbonate and fiber, is played calcium carbonate and is acted on the strong bridge of fiber, improves and fill out
Material keeps probability, greatly improves first-past retention, in paper dehydration process, without unnecessary filler and the stream of fiber fines
Lose, good keeping has ensured low white water consistency.Meanwhile the grafting agent is combined by way of crosslinking with starch molecule,
The film forming of product is improved, the toughness and intensity of film is enhanced, improves the tear resistance of film, greatly enhance paper
Intensity.
Embodiment
With reference to specific embodiment, the present invention is expanded on further.In the following detailed description, the side of explanation is only passed through
Formula describes some one exemplary embodiments of the present invention.Undoubtedly, one of ordinary skill in the art will recognize, not
In the case of deviateing the spirit and scope of the present invention, the described embodiments may be modified in various different ways.
Therefore, description is inherently illustrative, is not intended to limit the scope of the claims.
Embodiment 1
The preparation method of feature paper grade (stock) reinforcing agent, comprises the following steps：
Formula is as follows：Starch 60%, aluminium polychloride 15%, methyl acrylate 13%, maleic anhydride 5%, sodium hydroxide
5%th, hydrochloric acid 2%；
(1) surface chargeization is handled：
By the 40% of aluminium polychloride (charge modifiers) gross weight, it is added in premixing tank, opens stirring；Then by hydrogen
The 40% of sodium oxide molybdena gross weight, which is added in the premixing tank, to be premixed；Starch is added in blender, starts blender, and will
Mixture in the premixing tank is injected in blender, mixes 30min, and electric charge powder is made；
Remaining aluminium polychloride is added in premixing tank, and it is dense to add water to be made into quality the remaining sodium hydroxide
It is also added in premixing tank, is well mixed after spending the solution for 20%, electric charge solution is made；
(2) graft crosslinking reacts：
The electric charge powder is added in reactor, is warming up to 120 DEG C, reacts 1 hour, is then added to hydrochloric acid
In reactor, discharged after well mixed, powders mixture is made, is added in the feed hopper of extruder；
Methyl acrylate (grafting agent) is added in reactor, adds water to be made into the solution that mass concentration is 20%, heating
To 60 DEG C, the electric charge solution is added in reactor, 80 DEG C is warming up to and is reacted, is 7~9 to pH value, is made and connects
Branch agent solution；
Extruder is heated up, each warm area temperature of extruder controls respectively：1st~3 area is 50~90 DEG C, and 4th~7 area are
130~150 DEG C, 8th~11 area are 120~140 DEG C；Extruder is started, is grafted agent solution and Malaysia by described with charge pump respectively
Acid anhydrides (crosslinking agent) is added in extruder；Feeder is started, the powders mixture in feed hopper is even added to crowded
Extruded in press, crosslink reaction；
(3) pneumatic conveying drying：
Extruded material is subjected to pneumatic conveying drying by pneumatic drier, pneumatic drier EAT is according to required water
Part control is at 80~130 DEG C；
(4) crush, pack：
The material for drying completion is carried out to cross 80 mesh sieves after crushing, metering packing, product is made.
Starch described in the present embodiment is selected from the mixture of farina and cornstarch.
Embodiment 2
The preparation method of feature paper grade (stock) reinforcing agent, comprises the following steps：
Formula is as follows：Starch 50%, acid amides 25%, methyl acrylate 10%, mixed acid anhydride 5%, sodium hydroxide 3%, salt
Acid 2%；
(1) surface chargeization is handled：
By the 40% of acid amides (charge modifiers) gross weight, it is added in premixing tank, opens stirring；Then by sodium hydroxide
The 40% of gross weight, which is added in the premixing tank, to be premixed；Starch is added in blender, starts blender, and will be described pre-
Mixture in mixed tank is injected in blender, mixes 30min, and electric charge powder is made；
Remaining acid amides is added in premixing tank, and adds water to be made into mass concentration the remaining sodium hydroxide and is
It is also added in premixing tank, is well mixed after 20% solution, electric charge solution is made；
(2) graft crosslinking reacts：
The electric charge powder is added in reactor, is warming up to 110 DEG C, reacts 2 hours, is then added to hydrochloric acid
In reactor, discharged after well mixed, powders mixture is made, is added in the feed hopper of extruder；
Methyl acrylate (grafting agent) is added in reactor, adds water to be made into the solution that mass concentration is 20%, heating
To 80 DEG C, the electric charge solution is added in reactor, 90 DEG C is warming up to and is reacted, is 7~9 to pH value, is made and connects
Branch agent solution；
Extruder is heated up, each warm area temperature of extruder controls respectively：1st~3 area is 50~90 DEG C, and 4th~7 area are
130~150 DEG C, 8th~11 area are 120~140 DEG C；Extruder is started, is grafted agent solution and mixing by described with charge pump respectively
Acid anhydrides (crosslinking agent) is added in extruder；Feeder is started, the powders mixture in feed hopper is even added to crowded
Extruded in press, crosslink reaction；
(3) pneumatic conveying drying：
Extruded material is subjected to pneumatic conveying drying by pneumatic drier, pneumatic drier EAT is according to required water
Part control is at 80~130 DEG C；
(4) crush, pack：
The material for drying completion is carried out to cross 80 mesh sieves after crushing, metering packing, product is made.
Embodiment 3
The preparation method of feature paper grade (stock) reinforcing agent, comprises the following steps：
Formula is as follows：Starch 40%, aluminum sulfate 30%, methyl acrylate 5%, maleic anhydride 15%, sodium hydroxide 8%,
Sulfuric acid 2%；
(1) surface chargeization is handled：
By the 40% of aluminum sulfate (charge modifiers) gross weight, it is added in premixing tank, opens stirring；Then by hydroxide
The 40% of sodium gross weight, which is added in the premixing tank, to be premixed；Starch is added in blender, starts blender, and by described in
Mixture in premixing tank is injected in blender, mixes 30min, and electric charge powder is made；
Remaining aluminum sulfate is added in premixing tank, and adds water to be made into mass concentration the remaining sodium hydroxide and is
It is also added in premixing tank, is well mixed after 20% solution, electric charge solution is made；
(2) graft crosslinking reacts：
The electric charge powder is added in reactor, is warming up to 120 DEG C, reacts 1.5 hours, then adds sulfuric acid
Into reactor, discharged after well mixed, powders mixture is made, is added in the feed hopper of extruder；
Methyl acrylate (grafting agent) is added in reactor, adds water to be made into the solution that mass concentration is 20%, heating
To 80 DEG C, the electric charge solution is added in reactor, 90 DEG C is warming up to and is reacted, is 7~9 to pH value, is made and connects
Branch agent solution；
Extruder is heated up, each warm area temperature of extruder controls respectively：1st~3 area is 50~90 DEG C, and 4th~7 area are
130~150 DEG C, 8th~11 area are 120~140 DEG C；Extruder is started, is grafted agent solution and Malaysia by described with charge pump respectively
Acid anhydrides (crosslinking agent) is added in extruder；Feeder is started, the powders mixture in feed hopper is even added to crowded
Extruded in press, crosslink reaction；
(3) pneumatic conveying drying：
Extruded material is subjected to pneumatic conveying drying by pneumatic drier, pneumatic drier EAT is according to required water
Part control is at 80~130 DEG C；
(4) crush, pack：
The material for drying completion is carried out to cross 80 mesh sieves after crushing, metering packing, product is made.
The present invention uses the charge modifiers for active group one end of product can be made closely to be combined with filler, and one
End is closely combined with fiber, firmly bundlees calcium carbonate and fiber, is played calcium carbonate and is acted on the strong bridge of fiber, improves staying for filler
Probability, greatly improves first-past retention, it is good without the loss of unnecessary filler and fiber fines in paper dehydration process
Good keeping has ensured low white water consistency.Meanwhile the grafting agent is combined by way of crosslinking with starch molecule, is improved
The film forming of product, the toughness and intensity of film are enhanced, improve the tear resistance of film, greatly enhance the intensity of paper.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (4)
1. the preparation method of feature paper grade (stock) reinforcing agent, it is characterised in that the feature paper grade (stock) reinforcing agent includes following
The component of weight percentage：Starch 40~60%, charge modifiers 5~30%, grafting agent 1~20%, crosslinking agent 1~
15%th, sodium hydroxide 1~8%, acid 1~3%, preparation method comprises the following steps：
(1) surface chargeization is handled：
By the 15~70% of charge modifiers gross weight, it is added in premixing tank, opens stirring；Then by sodium hydroxide gross weight
10~80% be added in the premixing tank and premix；Starch is added in blender, starts blender, and by the premix
Mixture in tank is injected in blender, mixes 10~30min, and electric charge powder is made；
After adding water to be made into the solution that mass concentration is 5~20% the remaining sodium hydroxide, change with the remaining electric charge
Property agent be well mixed, electric charge solution is made；
(2) graft crosslinking reacts：
The electric charge powder is added in reactor, is warming up to 50~130 DEG C, reacts 0.5~3 hour, then adds acid
Enter into reactor, discharged after well mixed, powders mixture is made；
Grafting agent is added in reactor, adds water to be made into the solution that mass concentration is 20%, is warming up to 50~80 DEG C, by described in
Electric charge solution is added in reactor, is warming up to 60~90 DEG C and is reacted, and is 7~9 to pH value, and grafting agent solution is made；
The powders mixture, grafting agent solution and crosslinking agent are even added in extruder and extruded, is crosslinked anti-
Should；
(3) pneumatic conveying drying：
Extruded material is subjected to pneumatic conveying drying, drying temperature is controlled at 80~130 DEG C；
(4) crush, pack：
The material for drying completion is crushed, metering packing obtains finished product.
2. the preparation method of feature paper grade (stock) reinforcing agent as claimed in claim 1, it is characterised in that：
One or more of arbitrary proportions of the starch in farina, tapioca, cornstarch or wheaten starch
Mixture；
The mixture of one or more of arbitrary proportions of the acid in hydrochloric acid, sulfuric acid, phosphoric acid or oxalic acid.
3. the preparation method of feature paper grade (stock) reinforcing agent as claimed in claim 1, it is characterised in that：
One or more of arbitrary proportions of the charge modifiers in quaternary amine, tertiary ammonium salt, aluminium polychloride or aluminum sulfate
Mixture；
The grafting agent be selected from methyl acrylate, butyl acrylate, vinylacetate, acrylamide, polyvinylamine, acrylonitrile,
The mixture of one or more of arbitrary proportions in styrene or butadiene.
4. the preparation method of feature paper grade (stock) reinforcing agent as claimed in claim 1, it is characterised in that：
The crosslinking agent be selected from sodium trimetaphosphate, POCl3, epoxychloropropane, formaldehyde, glyoxal, glutaraldehyde, maleic anhydride,
The mixture of one or more of arbitrary proportions in mixed acid anhydride, epoxide petroleum base monomer or divinylsulfone.
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105061653B (en) * | 2015-09-21 | 2017-03-01 | 福州大学 | A kind of 1 urea groups 2 hydroxypropyl vinylamine copolymer and its preparation method and application |
| CN105239458A (en) * | 2015-09-25 | 2016-01-13 | 句容市兴武包装有限公司 | Retention assisting reinforcing agent for papermaking, and preparation method thereof |
| CN105220568A (en) * | 2015-09-25 | 2016-01-06 | 句容市兴武包装有限公司 | A kind of dry paper reinforcer and preparation method thereof |
| CN105839451A (en) * | 2015-11-04 | 2016-08-10 | 山东太阳生活用纸有限公司 | Papermaking auxiliary agent, papermaking method and paper towel |
| CN106866897A (en) * | 2017-01-12 | 2017-06-20 | 广东轻工职业技术学院 | A kind of straw base compounded mix, its preparation method and the paper containing the compounded mix |
| CN109577087B (en) * | 2018-12-14 | 2021-09-14 | 北京矿冶科技集团有限公司 | Multifunctional composite reinforcing agent for papermaking and preparation method thereof |
| CN110258179A (en) * | 2019-06-18 | 2019-09-20 | 江西远宏实业有限公司 | A kind of paper-making industry reinforcing agent and preparation method thereof |
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