CN110219204A - A kind of brown paper drying strengthening agent of moisture-resistant and preparation method thereof - Google Patents
A kind of brown paper drying strengthening agent of moisture-resistant and preparation method thereof Download PDFInfo
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- CN110219204A CN110219204A CN201910521528.6A CN201910521528A CN110219204A CN 110219204 A CN110219204 A CN 110219204A CN 201910521528 A CN201910521528 A CN 201910521528A CN 110219204 A CN110219204 A CN 110219204A
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- 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
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
- D21H17/11—Halides
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- 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
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
- D21H17/14—Carboxylic acids; Derivatives thereof
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- 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
- D21H17/31—Gums
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- 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
- D21H17/33—Synthetic macromolecular compounds
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/37—Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
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- 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
- D21H17/63—Inorganic compounds
- D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
- D21H17/68—Water-insoluble compounds, e.g. fillers, pigments siliceous, e.g. clays
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- 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
- D21H17/71—Mixtures of material ; Pulp or paper comprising several different materials not incorporated by special processes
- D21H17/74—Mixtures of material ; Pulp or paper comprising several different materials not incorporated by special processes of organic and inorganic material
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- 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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Abstract
The present invention relates to the fields of paper drying strengthening agent, provide a kind of brown paper drying strengthening agent of moisture-resistant, and raw material includes at least: amphiprotic polyacrylamide lotion, modified guar, ammonium salt, diatomite；The amphiprotic polyacrylamide lotion, modified guar, ammonium salt, diatomite weight ratio be 1:(0.1~0.5): (0.1~0.5): (0.01~0.1).Additionally provide a kind of preparation method of the brown paper drying strengthening agent of moisture-resistant.
Description
Technical field
The present invention relates to the fields of paper drying strengthening agent, specifically further relate to the brown paper drying strengthening agent and its system of a kind of moisture-resistant
Preparation Method.
Background technique
Drying strengthening agent be in paper industry enhance paper strength a kind of important chemical, commonly used in compensation addition filler or
The decline of paper intensity caused by the fiber of inferior grade.Many water-soluble high polymers that hydrogen bond can be formed with fiber can be at
For drying strengthening agent.Common drying strengthening agent has natural polymer such as starch and its modifier, synthetic polymer such as polyacrylamide, poly- second
Other water-soluble natural product type drying strengthening agents of the one kind such as enol.
Paper strength is affected by many factors, and is dependent firstly on into fibrous binding force and fiber itself intensity in paper, and
It arranges and is distributed at paper fiber.And binding force most importantly between fiber, there are four types of fibrous binding force is general: chemical bond, hydrogen bond,
Van der Waals force and surface intertexture power.Wherein Hydrogen bonding forces are the major ways that paper bond strength generates.Cellulosic molecule
There are many hydroxyl, and the binding force for mutually forming hydrogen bond by countless microfibres is very big, this is also the main reason for intensity generates.It is natural and
It is all hydrophilic macromolecule that it is most of, which to synthesize drying strengthening agent, increases hydrogen bond quantity between fiber between the fibers by dispersion, reaches
The purpose for improving paper strength, by increasing polymer and interfibrous binding force containing connecing in master link cationic groups,
Improve polymer retention.Drying strengthening agent often there is a problem of in use one it is common, the viscosity of resulting polymers is normal
It will appear excessive or too small problem, it is possible to create the problem of gel, coagulation, reduce stock utilization, increase loss；In addition,
In use, retention effect is poor for drying strengthening agent, is also easy to bring the pollution problem of plain boiled water.
Summary of the invention
In order to solve the above technical problems, the brown paper that the first aspect of the invention provides a kind of moisture-resistant is used dry strong
Agent, raw material include at least: amphiprotic polyacrylamide lotion, modified guar, ammonium salt, diatomite；The amphiprotic polyacrylamide
Lotion, modified guar, ammonium salt, diatomite weight ratio be 1:(0.1~0.5): (0.1~0.5): (0.01~0.1).
As a kind of perferred technical scheme, the raw material of heretofore described amphiprotic polyacrylamide lotion includes at least: A
One of component, olefin(e) acid substance, acrylamide monomers or a variety of combinations；The raw material for preparing of the component A at least wraps
It includes: the alkenylamide derivative containing methoxyl group.
As a kind of perferred technical scheme, the raw material for preparing of heretofore described modified guar includes at least Guar
Glue, acid anhydrides, amine substance.
As a kind of perferred technical scheme, heretofore described component A, olefin(e) acid substance, acrylamide monomers
Weight ratio is 1:(0.5~1.5): (2.5~4.5).
As a kind of perferred technical scheme, carbon atom number is 4-8 in heretofore described olefin(e) acid substance.
As a kind of perferred technical scheme, heretofore described component A prepare raw material further include carbon atom number be 5~
10 chloralkane.
As a kind of perferred technical scheme, heretofore described guar gum, acid anhydrides, amine substance weight ratio be 1:
(0.1~0.5): (0.2~0.8).
As a kind of perferred technical scheme, heretofore described olefin(e) acid substance is selected from itaconic acid, citraconic acid, [(2- first
Base -2- propylene -1- base) oxygroup] acetic acid, one of 4- methyl -4- penetenoic acid or a variety of combinations.
As a kind of perferred technical scheme, heretofore described amine substance is the chain alkyl chlorine with hydroxyethyl
Change ammonium.
The second aspect of the invention provides a kind of preparation method of brown paper drying strengthening agent, and step is at least wrapped
Include, amphiprotic polyacrylamide lotion, modified guar, ammonium salt, diatomite be add to deionized water, stir evenly to get
Drying strengthening agent.
With reference to following details, it is easier to understand technical characteristic, content and advantage described in previous section in the present invention.
Specific embodiment
Unless otherwise indicated, from context cues or belong to the convention of the prior art, otherwise number all in the application
It is all based on weight with percentage, and test and characterizing method used is all synchronous with the submission date of the application.If existing
There is defining for the concrete term disclosed in technology inconsistent with any definition provided herein, then with provided herein
Subject to term definition.
It is further clear, complete that the technical characteristic work in technical solution is provided to the present invention With reference to embodiment
Description, not to the limitation of its protection scope.
Word " preferred ", " preferably ", " preferred " in the present invention etc. refer to, can provide certain in some cases
The embodiment of the present invention of a little beneficial effects.However, other embodiments may also under identical circumstances or in the case of other
It is preferred.In addition, not implying that other embodiments are unavailable to the statement of one or more preferred embodiments, it is not yet
It is intended to exclude other embodiments except the scope of the present invention.The source of unmentioned component is commercially available in the present invention.
The first aspect of the invention provides a kind of brown paper drying strengthening agent of moisture-resistant, and raw material includes at least: both sexes are poly-
Acrylamide lotion, modified guar, ammonium salt, diatomite；The amphiprotic polyacrylamide lotion, modified guar, ammonium salt, silicon
The weight ratio of diatomaceous earth is 1:(0.1~0.5): (0.1~0.5): (0.01~0.1).
As a kind of perferred technical scheme, the amphiprotic polyacrylamide lotion, modified guar, ammonium salt, diatomite
Weight ratio be 1:(0.3~0.5): (0.1~0.3): (0.05~0.1)；It is furthermore preferred that the amphiprotic polyacrylamide cream
Liquid, modified guar, ammonium salt, diatomite weight ratio be 1:0.4:0.2:0.08.
Amphiprotic polyacrylamide lotion
In some embodiments, the raw material of the amphiprotic polyacrylamide lotion includes at least: component A, olefin(e) acid class object
One of matter, acrylamide monomers or a variety of combinations；The raw material for preparing of the component A includes at least: containing methoxyl group
Alkenylamide derivative.
In some embodiments, the raw material for preparing of the amphiprotic polyacrylamide lotion includes: component A, olefin(e) acid class object
The combination of matter, acrylamide monomers.
In some embodiments, the component A, olefin(e) acid substance, the weight ratio of acrylamide monomers are 1:(0.5
~1.5): (2.5~4.5)；Preferably, the component A, olefin(e) acid substance, the weight ratio of acrylamide monomers are 1:(0.8
~1.2): (3~4)；Preferably, the component A, olefin(e) acid substance, the weight ratio of acrylamide monomers are 1:1:3.5.
In some embodiments, the raw material for preparing of the component A includes at least: the alkenylamide derivative containing methoxyl group.
In some embodiments, the alkenylamide derivative containing methoxyl group is selected from N, N- bis- (1- methoxy ethyl) ten
One carbon -10- acrylamide, (2,2- dimethoxy-ethyl) acrylamide, in N- (2,2- dimethoxy-ethyl) Methacrylamide
One or more combinations；Preferably, the alkenylamide derivative containing methoxyl group is selected from N, N- bis- (1- methoxy ethyl)
One of 11 carbon -10- acrylamides, (2,2- dimethoxy-ethyl) acrylamide or a variety of combinations；It is furthermore preferred that described
Alkenylamide derivative containing methoxyl group is N, 11 carbon -10- acrylamide of N- bis- (1- methoxy ethyl).
In some embodiments, the raw material for preparing of the component A further includes the chloralkane that carbon atom number is 5~10；
Preferably, the raw material for preparing of the component A further includes the chloralkane that carbon atom number is 6~9；It is furthermore preferred that the component A
Preparing raw material further includes the chloralkane that carbon atom number is 7.
In some embodiments, the weight ratio of the alkenylamide derivative and chloralkane containing methoxyl group is 1:(0.5
~1.5)；Preferably, the weight ratio of the alkenylamide derivative and chloralkane containing methoxyl group is 1:(0.6~1.3)；It is more excellent
Choosing, the weight ratio of the alkenylamide derivative and chloralkane containing methoxyl group is 1:0.8.
In some embodiments, the chloralkane is selected from 3- chlorodecane, 2- chloroheptane, 1,2-, bis- chloroheptane, 2,5-
Dichloro hexane, 1,2- dichloro hexane, 1,6- dichloro hexane, 3- chloro-octane, bis- chloro-octane of 1,1-, bis- chloro-octane of 1,2-, 2,6- bis-
One of chloroheptane, bis- chloroheptane of 1,6-, bis- chloroheptane of 1,1-, bis- chlorononane of 1,2-, 1- chlorodecane, bis- chlorodecane of 1,10-
Or a variety of combination；Preferably, the chloralkane be selected from 3- chlorodecane, 2- chloroheptane, 1,2-, bis- chloroheptane, 3- chloro-octane,
One of bis- chloro-octane of 1,1-, bis- chloro-octane of 1,2- or a variety of combinations；It is furthermore preferred that the chloralkane is selected from the 3- chlorine last of the ten Heavenly stems
One of alkane, 2- chloroheptane, bis- chloroheptane of 1,2- or a variety of combinations；It is further preferred that the chloralkane is 1,2-
Two chloroheptanes.
In some embodiments, carbon atom number is 4-8 in the olefin(e) acid substance；Preferably, the olefin(e) acid class object
Carbon atom number is 5-7 in matter；It is furthermore preferred that carbon atom number is 6 in the olefin(e) acid substance.
In some embodiments, the olefin(e) acid substance is selected from itaconic acid, citraconic acid, [(2- methyl -2- propylene -1-
Base) oxygroup] acetic acid, one of 4- methyl -4- penetenoic acid or a variety of combinations；Preferably, the olefin(e) acid substance is selected from clothing
One of health acid, citraconic acid, 4- methyl -4- penetenoic acid or a variety of combinations；It is further preferred that the olefin(e) acid substance is
4- methyl -4- penetenoic acid.
In some embodiments, the acrylamide monomers are selected from acrylamide, hydroxymethyl acrylamide, methyl-prop
One of acrylamide, N tert butyl acrylamide or a variety of combinations；Preferably, the acrylamide monomers are selected from hydroxyl first
One of base acrylamide, N tert butyl acrylamide or a variety of combinations；It is furthermore preferred that the acrylamide monomers are
N tert butyl acrylamide.
Heretofore described amphiprotic polyacrylamide lotion the preparation method is as follows:
(1) 40-80h is stirred at room temperature in the diethyl ether solution of alkenylamide derivative and chloralkane containing methoxyl group；It crosses
Sediment is filtered, is washed with ether, is dried in vacuo to get component A；The wherein alkenylamide derivative and alkyl chloride containing methoxyl group
The total weight of hydrocarbon and the weight ratio of ether are 1:(2~4)；
(2) component A, olefin(e) acid substance, acrylamide monomers and initiator are placed in deionized water again, in 60~
7~10h is reacted at 80 DEG C to get amphiprotic polyacrylamide lotion；Wherein initiator accounts for component A, olefin(e) acid substance, acrylamide
The 0.01~0.05% of three kinds of raw material components gross masses of class monomer.
Preferably, the amphiprotic polyacrylamide lotion the preparation method is as follows:
(1) 72h is stirred at room temperature in the diethyl ether solution of alkenylamide derivative and chloralkane containing methoxyl group；Filtering is heavy
Starch is washed with ether, is dried in vacuo to get component A；The wherein alkenylamide derivative and chloralkane containing methoxyl group
Total weight and the weight ratio of ether are 1:3；
(2) component A, olefin(e) acid substance, acrylamide monomers and initiator are placed in deionized water again, in 70 DEG C
Lower reaction 8.5h is to get amphiprotic polyacrylamide lotion；Wherein initiator accounts for component A, olefin(e) acid substance, acrylamide monomers
The 0.03% of three kinds of raw material components gross masses.
In some embodiments, the initiator is selected from sodium peroxydisulfate, potassium peroxydisulfate, ammonium persulfate, hydrogen peroxide, uncle
One of butylhydroperoxide, cyclohexanone peroxide, benzoyl peroxide, azo-initiator and percarbonate or a variety of groups
It closes；Preferably, the initiator is benzoyl peroxide.
Be found through experiments that, when in amphiprotic polyacrylamide emulsion preparation process use N, N- bis- (1- methoxy ethyl) ten
When the olefin(e) acid substance that one carbon -10- acrylamide and carbon atom number are 4~8, drying strengthening agent can effectively improve in paper preparation process
In usability, i.e. reduction plain boiled water pollution while the problem of reducing bubble, coagulation, while improve the intensity of paper with it is water-fast
Property, polyacrylamide may be prepared due to the anionic monomer of short-chain branch, the cationic monomer of long-chain branch, formed long short-chain branch and handed over
In preparation paper process, cationization occurred for the molecular structure replaced it is possible to prevente effectively from cation is excessive；And length is closed
Suitable carboxyl carbochain again can be to avoid anion and cation sites be relatively strong and hinder its effect with paper fibre, to improve
The intensity of paper；It is easily acted on simultaneously with impurity cationic of the travelling in molecular gap, and prevents its migration, improve retention rate.
In addition, the long short-chain branch that 11 carbon -10- acrylamide of N, N- bis- (1- methoxy ethyl) is conducive to dissymmetrical structure is handed over
The formation for the amphiphatic molecule structure replaced, realization avoided cationization, improved the dispersibility of molecule in emulsion preparation process, improved
Monomer conversion ratio, with positive and negative charge collective effect in system in paper preparation process, is improved and is protected to improve system solid content
The generation of gel is avoided while staying rate；Simultaneously its dissymmetrical structure reduce surface tension, promotion system it is uniform, avoid preparing
Bubble is led to the problem of because active different in the process.
Modified guar
In some embodiments, the raw material for preparing of the modified guar includes at least guar gum, acid anhydrides, amine
Matter.
In some embodiments, the guar gum, acid anhydrides, amine substance weight ratio be 1:(0.1~0.5): (0.2
~0.8)；Preferably, the guar gum, acid anhydrides, amine substance weight ratio be 1:(0.3~0.4): (0.4~0.6)；It is more excellent
Choosing, the guar gum, acid anhydrides, amine substance weight ratio be 1:0.35:0.5.
Particular determination does not do in the purchase producer of the guar gum, and heretofore described guar gum purchase is biological from Shandong Guang Pu
Science and Technology Ltd., name of product are guar gum original powder.
In some embodiments, the acid anhydrides be selected from maleic anhydride, succinic anhydride, 1- dodecenyl succinic anhydride,
One of acrylic anhydride, 2- itaconic anhydride, 2- decylene-1-base succinic anhydride or a variety of combinations；Preferably, described
Acid anhydrides be selected from one of maleic anhydride, 1- dodecenyl succinic anhydride, acrylic anhydride, 2- decylene-1-base succinic anhydride or
A variety of combinations；It is furthermore preferred that the acid anhydrides is maleic anhydride.
In some embodiments, the amine substance is the chain alkyl ammonium chloride with hydroxyethyl.
The chain alkyl ammonium chloride indicates the 10-20 contained in molecular structure continuous methylene coupled alkyl ammonium chloride.
In some embodiments, the chain alkyl ammonium chloride with hydroxyethyl is selected from two (2- hydroxyethyls)-
Methyl-undecyl ammonium chloride, two (ethoxy) methyl lauryl ammonium chlorides, two (2- hydroxyethyl)-methyl-tridecyls
One of ammonium chloride or a variety of combinations；Preferably, the chain alkyl ammonium chloride with hydroxyethyl is two (2- hydroxyls
Ethyl)-methyl-undecyl ammonium chloride and/or two (2- hydroxyethyl)-methyl-tridecyl ammonium chloride；Further preferably
, the chain alkyl ammonium chloride with hydroxyethyl is two (2- hydroxyethyl)-methyl-tridecyl ammonium chloride.
In some embodiments, the modified guar the preparation method is as follows:
It weighs a certain amount of guar gum and acid anhydrides, amine substance is placed in reactor, sodium bicarbonate is configured to aqueous solution
It in uniform penetrating system, stirs, is put under air-tight state in 50~80 DEG C of water-baths in spray, guarantee reaction in water vapour environment
It carries out；Product is washed into suction filtration drying repeatedly with dehydrated alcohol to get pure modified guar after fully reacting；The Guar
Glue, acid anhydrides, the gross mass of amine substance and sodium bicarbonate mass ratio be 1:(0.05-0.1)；The guar gum, acid anhydrides, amine
The gross mass of substance and the mass ratio of water are 1:(1.5-3.5).
Preferably, the modified guar the preparation method is as follows:
It weighs a certain amount of guar gum and acid anhydrides, amine substance is placed in reactor, sodium bicarbonate is configured to aqueous solution
In uniform penetrating system, stir, is put under air-tight state in 70 DEG C of water-baths in spray, guarantee to react in water vapour environment into
Row；Product is washed into suction filtration drying repeatedly with dehydrated alcohol to get pure modified guar after fully reacting；The guar gum,
The mass ratio of acid anhydrides, the gross mass of amine substance and sodium bicarbonate is 1:0.08；The guar gum, acid anhydrides, amine substance it is total
The mass ratio of quality and water is 1:2.5.
Be found through experiments that guar gum is added in paper preparation process can be improved the intensity of paper, but its water resistance compared with
It is low, there is bubble generation in preparation process, may largely be in molecule outer active hydroxyl due to what is contained in Guar xanthan molecule,
With very big Hydrogenbond area when in conjunction with fiber, the Hydrogenbond of formation is apart from short, and binding force is big, it is easy to fiber
In conjunction with sizing efficiency is generated, improve the intensity of paper and the tightness of paper and evenness, but its be blended with system it is compatible and
In Process of Applying Glue, due to containing big cyclic structure in molecule, although the speed of surface tension reduction can be accelerated, due to
The limitation of molecular structure freedom degree makes the degree of its reduction in surface tension will receive limit, when guar gum is used alone in it, meeting
There is bubble generation, influence the active force of drying strengthening agent and paper, reduces strength and toughness, it may also reduce the molecular bridge inside paper
Beam reduces the evenness inside paper, causes phenomena such as not resistant to water.
The strong of paper can be improved when using maleic anhydride and amine substance modified guar in discovery during the experiment
Degree, the water resistance for reducing plain boiled water pollution, improving paper, may be high due to being formed by molecular chain structure degree of irregularity, and from
Rotatory power is also higher, can generate self organization ability, significantly reduces the surface tension of system, improves the equal of system
One property, avoids bubble；Carbochain can be migrated during the preparation process to fiber pore simultaneously, improve water resistance；And hydrophobic branch
Structure can form uniform, close hydrophobic layer in paper surface with large circle collective effect, also improve the intensity, tough of system
Property and water-resistance；Furthermore, it is also possible to be formed due to the collective effect of modified guar and polyacrylate emulsion in paper surface
The carbochain hydrophobic layer of uniform close improves the water-resistance, intensity and toughness of paper.
Ammonium salt
In some embodiments, the ammonium salt is selected from DTAC, DTAB, TTAC, TTAB, CTAC, any one of CTAB
Or a variety of combination；Preferably, the ammonium salt is selected from DTAC, DTAB, TTAC any one or more of combination；More preferably
, the ammonium salt is TTAC.
The DTAC is the abbreviation of dodecyl trimethyl ammonium chloride, and No. CAS is 112-00-5；The DTAB is lauryl
The abbreviation of trimethylammonium bromide, No. CAS is 1119-94-4；The TTAC is the abbreviation of tetradecyl trimethyl ammonium chloride, CAS
Number be 4574-04-3；The TTAB is the abbreviation of tetradecyltrimethylammonium bromide, and No. CAS is 1119-97-7；The CTAC
For the abbreviation of hexadecyltrimethylammonium chloride, No. CAS is 112-02-7；The CTAB is the letter of cetyl trimethyl bromine
Claim, No. CAS is 57-09-0.
Diatomite
In some embodiments, the average grain diameter of the diatomite is 5~15 μm；Preferably, the diatomite is flat
Equal partial size is 5~12 μm；It is furthermore preferred that the average grain diameter of the diatomite is 5~9 μm；It is further preferred that the diatomite
Average grain diameter be 6 μm.
It is found through experiments that, when using 5~12 μm of diatomite, due to structures such as the hydroxyl on its surface, silicon, it can be made
Preferably it is scattered in the gap of branch, a part is acted on paper fibre, is adsorbed in paper surface, there is a humidification, one
Part is preferably fixed in molecule gap, improves the intensity of paper, while as steric hindrance, molecule being avoided excessively to wind,
The preferable active force kept between polyacrylamide, modified guar molecule, avoids cohesive force excessive and causes coagulation or paper
Open the problems such as fiber excessively agglomerates；Furthermore in system anionic trash act on, reduce plain boiled water pollution and cation
Consumption, further increases paper strength.
When diatomite average grain diameter is larger, movement steric hindrance is larger in molecular system, is not easy to disperse, easy to form poly-
It sinks, accumulated in paper surface, cockling whole problem uneven so as to cause paper strength；When diatom average grain diameter is too small,
During the preparation process, it is easy to migrate to fiber pore, not the effect of strengthening for paper, while steric hindrance is smaller, is easy to cause poly- third
Electrostatic interaction is larger between acrylamide, modified guar molecule, destroys the homogeneity of system, to occur during the preparation process poly-
The problems such as heavy, bubble, to reduce the intensity and water-resistance of gained paper.
The second aspect of the invention provides a kind of preparation method of brown paper drying strengthening agent, and step is at least wrapped
Include, amphiprotic polyacrylamide lotion, modified guar, ammonium salt, diatomite be add to deionized water, stir evenly to get
Drying strengthening agent.
In some preferred embodiments, the preparation method of the brown paper drying strengthening agent, step include at least, by two
Property polyacrylamide emulsion, modified guar, ammonium salt, diatomite be add to deionized water, stir 1.5 at 75~85 DEG C~
2.5h is cooled to room temperature, and is stirred evenly to get drying strengthening agent.
In some preferred embodiments, the preparation method of the brown paper drying strengthening agent, step is included at least, will
Amphiprotic polyacrylamide lotion, modified guar, ammonium salt, diatomite are add to deionized water, and 2h is stirred at 80 DEG C, cooling
To room temperature, stir evenly to get drying strengthening agent.
In some embodiments, the weight ratio of the amphiprotic polyacrylamide lotion and deionized water be 1:(20~
40)；Preferably, the weight ratio of the amphiprotic polyacrylamide lotion and deionized water is 1:(25~35)；It is furthermore preferred that described
The weight ratio of amphiprotic polyacrylamide lotion and deionized water is 1:30.
The present invention is specifically described below by embodiment, following embodiment is only used for the present invention and does further
Illustrate, can not be interpreted as the limitation that the present invention protects, professional and technical personnel in the field makes according to the content of foregoing invention
Nonessential correction and adjustment, still fall within the range of protection of the invention.
Amphiprotic polyacrylamide lotion described in following embodiment the preparation method is as follows:
(1) 72h is stirred at room temperature in the diethyl ether solution of alkenylamide derivative and chloralkane containing methoxyl group；Filtering is heavy
Starch is washed with ether, is dried in vacuo to get component A；The wherein alkenylamide derivative and chloralkane containing methoxyl group
Total weight and the weight ratio of ether are 1:3；
(2) component A, olefin(e) acid substance, acrylamide monomers and initiator are placed in deionized water again, in 70 DEG C
Lower reaction 8.5h is to get amphiprotic polyacrylamide lotion；Wherein initiator accounts for component A, olefin(e) acid substance, acrylamide monomers
The 0.03% of three kinds of raw material components gross masses；The initiator is benzoyl peroxide.
The modified guar the preparation method is as follows:
It weighs a certain amount of guar gum and acid anhydrides, amine substance is placed in reactor, sodium bicarbonate is configured to aqueous solution
In uniform penetrating system, stir, is put under air-tight state in 70 DEG C of water-baths in spray, guarantee to react in water vapour environment into
Row；Product is washed into suction filtration drying repeatedly with dehydrated alcohol to get pure modified guar after fully reacting；The guar gum,
The mass ratio of acid anhydrides, the gross mass of amine substance and sodium bicarbonate is 1:0.08；The guar gum, acid anhydrides, amine substance it is total
The mass ratio of quality and water is 1:2.5.
Embodiment 1
It includes: amphiprotic polyacrylamide lotion, modified guar, ammonium that a kind of brown paper of moisture-resistant, which prepares raw material with drying strengthening agent,
Salt, diatomite；The amphiprotic polyacrylamide lotion, modified guar, ammonium salt, diatomite weight ratio be 1:0.4:0.2:
0.08；
The raw material for preparing of the amphiprotic polyacrylamide lotion includes: component A, olefin(e) acid substance, acrylamide monomers
Combination, weight ratio 1:1:3.5；The component A prepare raw material include include alkenylamide derivative and chlorine containing methoxyl group
For alkane, weight ratio 1:0.8；The alkenylamide derivative containing methoxyl group is N, N- bis- (1- methoxy ethyl) 11 carbon-
10- acrylamide, the chloralkane are 1,2-, bis- chloroheptane；The olefin(e) acid substance is 4- methyl -4- penetenoic acid；The propylene
Amides monomer is N tert butyl acrylamide；
The raw material for preparing of the modified guar includes guar gum, acid anhydrides, amine substance, weight ratio 1:0.35:0.5；
The acid anhydrides is maleic anhydride, and the amine substance is two (2- hydroxyethyl)-methyl-tridecyl ammonium chloride；The ammonium salt
For TTAC；The diatomite is bought from Qingdao Sheng Tai Gui Ye Co., Ltd, trade mark TZ525；
A kind of preparation method of the brown paper drying strengthening agent, step include, by amphiprotic polyacrylamide lotion, modified melon
That glue, ammonium salt, diatomite are add to deionized water, and are stirred 2h at 80 DEG C, are cooled to room temperature, and are stirred evenly to get dry strong
Agent；The weight ratio of the amphiprotic polyacrylamide lotion and deionized water is 1:30.
Embodiment 2
It includes: amphiprotic polyacrylamide lotion, modified guar, ammonium that a kind of brown paper of moisture-resistant, which prepares raw material with drying strengthening agent,
Salt, diatomite；The amphiprotic polyacrylamide lotion, modified guar, ammonium salt, diatomite weight ratio be 1:0.1:0.1:
0.01；
The raw material for preparing of the amphiprotic polyacrylamide lotion includes: component A, olefin(e) acid substance, acrylamide monomers
Combination, weight ratio 1:0.5:2.5；The raw material for preparing of the component A includes alkenylamide derivative and chloro containing methoxyl group
Alkane, weight ratio 1:0.5；The alkenylamide derivative containing methoxyl group is N, 11 carbon -10- of N- bis- (1- methoxy ethyl)
Acrylamide, the chloralkane are 2- chloroheptane；The olefin(e) acid substance is itaconic acid；The acrylamide monomers are hydroxyl first
Base acrylamide；
The raw material for preparing of the modified guar includes guar gum, acid anhydrides, amine substance, weight ratio 1:0.1:0.2；Institute
Stating acid anhydrides is maleic anhydride, and the amine substance is two (2- hydroxyethyl)-methyl-undecyl ammonium chloride；The ammonium salt is
DTAB；The diatomite is bought from Qingdao Sheng Tai Gui Ye Co., Ltd, trade mark TZ200；
A kind of preparation method of the brown paper drying strengthening agent, step include, by amphiprotic polyacrylamide lotion, modified melon
That glue, ammonium salt, diatomite are add to deionized water, and are stirred 1.5h at 75 DEG C, are cooled to room temperature, and are stirred evenly to get dry
Strong agent；The weight ratio of the amphiprotic polyacrylamide lotion and deionized water is 1:20.
Embodiment 3
It includes: amphiprotic polyacrylamide lotion, modified guar, ammonium that a kind of brown paper of moisture-resistant, which prepares raw material with drying strengthening agent,
Salt, diatomite；The amphiprotic polyacrylamide lotion, modified guar, ammonium salt, diatomite weight ratio be 1:0.5:0.5:
0.1；
The raw material for preparing of the amphiprotic polyacrylamide lotion includes: component A, olefin(e) acid substance, acrylamide monomers
Combination, weight ratio 1:1.5:4.5；The raw material for preparing of the component A includes alkenylamide derivative and chloro containing methoxyl group
Alkane, weight ratio 1:1.5；The alkenylamide derivative containing methoxyl group is N, 11 carbon -10- of N- bis- (1- methoxy ethyl)
Acrylamide, the chloralkane are 3- chlorodecane；The olefin(e) acid substance is 4- methyl -4- penetenoic acid；The acrylic amide
Monomer is N tert butyl acrylamide；
The raw material for preparing of the modified guar includes guar gum, acid anhydrides, amine substance, weight ratio 1:0.5:0.8；Institute
Stating acid anhydrides is maleic anhydride, and the amine substance is two (2- hydroxyethyl)-methyl-undecyl ammonium chloride；The ammonium salt is
DTAC；The diatomite is bought from Qingdao Sheng Tai Gui Ye Co., Ltd, trade mark TZ325；
A kind of preparation method of the brown paper drying strengthening agent, step include, by amphiprotic polyacrylamide lotion, modified melon
That glue, ammonium salt, diatomite are add to deionized water, and are stirred 2.5h at 85 DEG C, are cooled to room temperature, and are stirred evenly to get dry
Strong agent；The weight ratio of the amphiprotic polyacrylamide lotion and deionized water is 1:40.
Embodiment 4
It includes: amphiprotic polyacrylamide lotion, modified guar, ammonium that a kind of brown paper of moisture-resistant, which prepares raw material with drying strengthening agent,
Salt, diatomite；The amphiprotic polyacrylamide lotion, modified guar, ammonium salt, diatomite weight ratio be 1:0.3:0.1:
0.05；
The raw material for preparing of the amphiprotic polyacrylamide lotion includes: component A, olefin(e) acid substance, acrylamide monomers
Combination, weight ratio 1:0.8:3；The raw material for preparing of the component A includes alkenylamide derivative and alkyl chloride containing methoxyl group
Hydrocarbon, weight ratio 1:0.5；The alkenylamide derivative containing methoxyl group is N, 11 carbon -10- alkene of N- bis- (1- methoxy ethyl)
Amide, the chloralkane are 3- chlorodecane；The olefin(e) acid substance is 4- methyl -4- penetenoic acid；The acrylic amide list
Body is N tert butyl acrylamide；
The raw material for preparing of the modified guar includes guar gum, acid anhydrides, amine substance, weight ratio 1:0.3:0.4；Institute
Stating acid anhydrides is maleic anhydride, and the amine substance is two (2- hydroxyethyl)-methyl-undecyl ammonium chloride；The ammonium salt is
DTAC；The diatomite is bought from Qingdao Sheng Tai Gui Ye Co., Ltd, trade mark TZ525；
A kind of preparation method of the brown paper drying strengthening agent, step include, by amphiprotic polyacrylamide lotion, modified melon
That glue, ammonium salt, diatomite are add to deionized water, and are stirred 2h at 80 DEG C, are cooled to room temperature, and are stirred evenly to get dry strong
Agent；The weight ratio of the amphiprotic polyacrylamide lotion and deionized water is 1:25.
Embodiment 5
It includes: amphiprotic polyacrylamide lotion, modified guar, ammonium that a kind of brown paper of moisture-resistant, which prepares raw material with drying strengthening agent,
Salt, diatomite；The amphiprotic polyacrylamide lotion, modified guar, ammonium salt, diatomite weight ratio be 1:0.5:0.3:
0.1；
The raw material for preparing of the amphiprotic polyacrylamide lotion includes: component A, olefin(e) acid substance, acrylamide monomers
Combination, weight ratio 1:1.2:4；The raw material for preparing of the component A includes alkenylamide derivative and alkyl chloride containing methoxyl group
Hydrocarbon, weight ratio 1:1.3；The alkenylamide derivative containing methoxyl group is N, 11 carbon -10- alkene of N- bis- (1- methoxy ethyl)
Amide, the chloralkane are 3- chlorodecane；The olefin(e) acid substance is 4- methyl -4- penetenoic acid；The acrylic amide list
Body is N tert butyl acrylamide；
The raw material for preparing of the modified guar includes guar gum, acid anhydrides, amine substance, weight ratio 1:0.4:0.6；Institute
Stating acid anhydrides is maleic anhydride, and the amine substance is two (2- hydroxyethyl)-methyl-undecyl ammonium chloride；The ammonium salt is
DTAC；The diatomite is bought from Qingdao Sheng Tai Gui Ye Co., Ltd, trade mark TZ525；
A kind of preparation method of the brown paper drying strengthening agent, step include, by amphiprotic polyacrylamide lotion, modified melon
That glue, ammonium salt, diatomite are add to deionized water, and are stirred 2h at 80 DEG C, are cooled to room temperature, and are stirred evenly to get dry strong
Agent；The weight ratio of the amphiprotic polyacrylamide lotion and deionized water is 1:35.
Embodiment 6
It includes: amphiprotic polyacrylamide lotion, modified guar, ammonium that a kind of brown paper of moisture-resistant, which prepares raw material with drying strengthening agent,
Salt, diatomite；The amphiprotic polyacrylamide lotion, modified guar, ammonium salt, diatomite weight ratio be 1:0.4:0.2:
0.08；
The raw material for preparing of the amphiprotic polyacrylamide lotion includes: component A, olefin(e) acid substance, acrylamide monomers
Combination, weight ratio 1:1:3.5；The raw material for preparing of the component A includes alkenylamide derivative and alkyl chloride containing methoxyl group
Hydrocarbon, weight ratio 1:0.8；The alkenylamide derivative containing methoxyl group is (2,2- dimethoxy-ethyl) acrylamide, described
Chloralkane is bis- chloroheptane of 1,2-；The olefin(e) acid substance is 4- methyl -4- penetenoic acid；The acrylamide monomers are N-
N-tert-butyl acrylamide；
The raw material for preparing of the modified guar includes guar gum, acid anhydrides, amine substance, weight ratio 1:0.35:0.5；
The acid anhydrides is maleic anhydride, and the amine substance is two (2- hydroxyethyl)-methyl-tridecyl ammonium chloride；The ammonium salt
For TTAC；The diatomite is bought from Qingdao Sheng Tai Gui Ye Co., Ltd, trade mark TZ525；
A kind of preparation method of the brown paper drying strengthening agent, step include, by amphiprotic polyacrylamide lotion, modified melon
That glue, ammonium salt, diatomite are add to deionized water, and are stirred 2h at 80 DEG C, are cooled to room temperature, and are stirred evenly to get dry strong
Agent；The weight ratio of the amphiprotic polyacrylamide lotion and deionized water is 1:30.
Embodiment 7
It includes: amphiprotic polyacrylamide lotion, modified guar, ammonium that a kind of brown paper of moisture-resistant, which prepares raw material with drying strengthening agent,
Salt, diatomite；The amphiprotic polyacrylamide lotion, modified guar, ammonium salt, diatomite weight ratio be 1:0.4:0.2:
0.08；
The raw material for preparing of the amphiprotic polyacrylamide lotion includes: component A, olefin(e) acid substance, acrylamide monomers
Combination, weight ratio 1:1:3.5；The raw material for preparing of the component A includes alkenylamide derivative and alkyl chloride containing methoxyl group
Hydrocarbon, weight ratio 1:0.8；The alkenylamide derivative containing methoxyl group is N, 11 carbon -10- alkene of N- bis- (1- methoxy ethyl)
Amide, the chloralkane are 1-chloropentane；The olefin(e) acid substance is 4- methyl -4- penetenoic acid；The acrylic amide list
Body is N tert butyl acrylamide；
The raw material for preparing of the modified guar includes guar gum, acid anhydrides, amine substance, weight ratio 1:0.35:0.5；
The acid anhydrides is maleic anhydride, and the amine substance is two (2- hydroxyethyl)-methyl-tridecyl ammonium chloride；The ammonium salt
For TTAC；The diatomite is bought from Qingdao Sheng Tai Gui Ye Co., Ltd, trade mark TZ525；
A kind of preparation method of the brown paper drying strengthening agent, step include, by amphiprotic polyacrylamide lotion, modified melon
That glue, ammonium salt, diatomite are add to deionized water, and are stirred 2h at 80 DEG C, are cooled to room temperature, and are stirred evenly to get dry strong
Agent；The weight ratio of the amphiprotic polyacrylamide lotion and deionized water is 1:30.
Embodiment 8
It includes: amphiprotic polyacrylamide lotion, modified guar, ammonium that a kind of brown paper of moisture-resistant, which prepares raw material with drying strengthening agent,
Salt, diatomite；The amphiprotic polyacrylamide lotion, modified guar, ammonium salt, diatomite weight ratio be 1:0.4:0.2:
0.08；
The raw material for preparing of the amphiprotic polyacrylamide lotion includes: component A, olefin(e) acid substance, acrylamide monomers
Combination, weight ratio 1:1:3.5；The raw material for preparing of the component A includes alkenylamide derivative and alkyl chloride containing methoxyl group
Hydrocarbon, weight ratio 1:0.8；The alkenylamide derivative containing methoxyl group is N, 11 carbon -10- alkene of N- bis- (1- methoxy ethyl)
Amide, the chloralkane are 2- chlorododecane；The olefin(e) acid substance is 4- methyl -4- penetenoic acid；The acrylic amide
Monomer is N tert butyl acrylamide；
The raw material for preparing of the modified guar includes guar gum, acid anhydrides, amine substance, weight ratio 1:0.35:0.5；
The acid anhydrides is maleic anhydride, and the amine substance is two (2- hydroxyethyl)-methyl-tridecyl ammonium chloride；The ammonium salt
For TTAC；The diatomite is bought from Qingdao Sheng Tai Gui Ye Co., Ltd, trade mark TZ525；
A kind of preparation method of the brown paper drying strengthening agent, step include, by amphiprotic polyacrylamide lotion, modified melon
That glue, ammonium salt, diatomite are add to deionized water, and are stirred 2h at 80 DEG C, are cooled to room temperature, and are stirred evenly to get dry strong
Agent；The weight ratio of the amphiprotic polyacrylamide lotion and deionized water is 1:30.
Embodiment 9
It includes: amphiprotic polyacrylamide lotion, modified guar, ammonium that a kind of brown paper of moisture-resistant, which prepares raw material with drying strengthening agent,
Salt, diatomite；The amphiprotic polyacrylamide lotion, modified guar, ammonium salt, diatomite weight ratio be 1:0.4:0.2:
0.08；
The raw material for preparing of the amphiprotic polyacrylamide lotion includes: component A, olefin(e) acid substance, acrylamide monomers
Combination, weight ratio 1:1:3.5；The raw material for preparing of the component A includes alkenylamide derivative and alkyl chloride containing methoxyl group
Hydrocarbon, weight ratio 1:0.8；The alkenylamide derivative containing methoxyl group is N, 11 carbon -10- alkene of N- bis- (1- methoxy ethyl)
Amide, the chloralkane are 1,2-, bis- chloroheptane；The olefin(e) acid substance is acrylic acid；The acrylamide monomers are N-
N-tert-butyl acrylamide；
The raw material for preparing of the modified guar includes guar gum, acid anhydrides, amine substance, weight ratio 1:0.35:0.5；
The acid anhydrides is maleic anhydride, and the amine substance is two (2- hydroxyethyl)-methyl-tridecyl ammonium chloride；The ammonium salt
For TTAC；The diatomite is bought from Qingdao Sheng Tai Gui Ye Co., Ltd, trade mark TZ525；
A kind of preparation method of the brown paper drying strengthening agent, step include, by amphiprotic polyacrylamide lotion, modified melon
That glue, ammonium salt, diatomite are add to deionized water, and are stirred 2h at 80 DEG C, are cooled to room temperature, and are stirred evenly to get dry strong
Agent；The weight ratio of the amphiprotic polyacrylamide lotion and deionized water is 1:30.
Embodiment 10
It includes: amphiprotic polyacrylamide lotion, modified guar, ammonium that a kind of brown paper of moisture-resistant, which prepares raw material with drying strengthening agent,
Salt, diatomite；The amphiprotic polyacrylamide lotion, modified guar, ammonium salt, diatomite weight ratio be 1:0.4:0.2:
0.08；
The raw material for preparing of the amphiprotic polyacrylamide lotion includes: component A, olefin(e) acid substance, acrylamide monomers
Combination, weight ratio 1:1:3.5；The raw material for preparing of the component A includes alkenylamide derivative and alkyl chloride containing methoxyl group
Hydrocarbon, weight ratio 1:0.8；The alkenylamide derivative containing methoxyl group is N, 11 carbon -10- alkene of N- bis- (1- methoxy ethyl)
Amide, the chloralkane are 1,2-, bis- chloroheptane；The olefin(e) acid substance is 3- decylenic acid；The acrylamide monomers are
N tert butyl acrylamide；
The raw material for preparing of the modified guar includes guar gum, acid anhydrides, amine substance, weight ratio 1:0.35:0.5；
The acid anhydrides is maleic anhydride, and the amine substance is two (2- hydroxyethyl)-methyl-tridecyl ammonium chloride；The ammonium salt
For TTAC；The diatomite is bought from Qingdao Sheng Tai Gui Ye Co., Ltd, trade mark TZ525；
A kind of preparation method of the brown paper drying strengthening agent, step include, by amphiprotic polyacrylamide lotion, modified melon
That glue, ammonium salt, diatomite are add to deionized water, and are stirred 2h at 80 DEG C, are cooled to room temperature, and are stirred evenly to get dry strong
Agent；The weight ratio of the amphiprotic polyacrylamide lotion and deionized water is 1:30.
Embodiment 11
It includes: amphiprotic polyacrylamide lotion, modified guar, ammonium that a kind of brown paper of moisture-resistant, which prepares raw material with drying strengthening agent,
Salt, diatomite；The amphiprotic polyacrylamide lotion, modified guar, ammonium salt, diatomite weight ratio be 1:0.4:0.2:
0.08；
The raw material for preparing of the amphiprotic polyacrylamide lotion includes: component A, olefin(e) acid substance, acrylamide monomers
Combination, weight ratio 1:0.1:1；The raw material for preparing of the component A includes alkenylamide derivative and alkyl chloride containing methoxyl group
Hydrocarbon, weight ratio 1:0.8；The alkenylamide derivative containing methoxyl group is N, 11 carbon -10- alkene of N- bis- (1- methoxy ethyl)
Amide, the chloralkane are 1,2-, bis- chloroheptane；The olefin(e) acid substance is 4- methyl -4- penetenoic acid；The acrylamide
Class monomer is N tert butyl acrylamide；
The raw material for preparing of the modified guar includes guar gum, acid anhydrides, amine substance, weight ratio 1:0.35:0.5；
The acid anhydrides is maleic anhydride, and the amine substance is two (2- hydroxyethyl)-methyl-tridecyl ammonium chloride；The ammonium salt
For TTAC；The diatomite is bought from Qingdao Sheng Tai Gui Ye Co., Ltd, trade mark TZ525；
A kind of preparation method of the brown paper drying strengthening agent, step include, by amphiprotic polyacrylamide lotion, modified melon
That glue, ammonium salt, diatomite are add to deionized water, and are stirred 2h at 80 DEG C, are cooled to room temperature, and are stirred evenly to get dry strong
Agent；The weight ratio of the amphiprotic polyacrylamide lotion and deionized water is 1:30.
Embodiment 12
It includes: amphiprotic polyacrylamide lotion, modified guar, ammonium that a kind of brown paper of moisture-resistant, which prepares raw material with drying strengthening agent,
Salt, diatomite；The amphiprotic polyacrylamide lotion, modified guar, ammonium salt, diatomite weight ratio be 1:0.4:0.2:
0.08；
The raw material for preparing of the amphiprotic polyacrylamide lotion includes: component A, olefin(e) acid substance, acrylamide monomers
Combination, weight ratio 1:1:3.5；The raw material for preparing of the component A includes alkenylamide derivative and alkyl chloride containing methoxyl group
Hydrocarbon, weight ratio 1:0.8；The alkenylamide derivative containing methoxyl group is N, 11 carbon -10- alkene of N- bis- (1- methoxy ethyl)
Amide, the chloralkane are 1,2-, bis- chloroheptane；The olefin(e) acid substance is 4- methyl -4- penetenoic acid；The acrylamide
Class monomer is N tert butyl acrylamide；
The raw material for preparing of the modified guar includes guar gum, acid anhydrides, amine substance, weight ratio 1:0.35:0.5；
The acid anhydrides is maleic anhydride, and the amine substance is (2- hydroxyethyl) dimethyl stearyl ammonium chloride；The ammonium salt is
TTAC；The diatomite is bought from Qingdao Sheng Tai Gui Ye Co., Ltd, trade mark TZ525；
A kind of preparation method of the brown paper drying strengthening agent, step include, by amphiprotic polyacrylamide lotion, modified melon
That glue, ammonium salt, diatomite are add to deionized water, and are stirred 2h at 80 DEG C, are cooled to room temperature, and are stirred evenly to get dry strong
Agent；The weight ratio of the amphiprotic polyacrylamide lotion and deionized water is 1:30.
Embodiment 13
It includes: amphiprotic polyacrylamide lotion, modified guar, ammonium that a kind of brown paper of moisture-resistant, which prepares raw material with drying strengthening agent,
Salt, diatomite；The amphiprotic polyacrylamide lotion, modified guar, ammonium salt, diatomite weight ratio be 1:0.4:0.2:
0.08；
The raw material for preparing of the amphiprotic polyacrylamide lotion includes: component A, olefin(e) acid substance, acrylamide monomers
Combination, weight ratio 1:1:3.5；The raw material for preparing of the component A includes alkenylamide derivative and alkyl chloride containing methoxyl group
Hydrocarbon, weight ratio 1:0.8；The alkenylamide derivative containing methoxyl group is N, 11 carbon -10- alkene of N- bis- (1- methoxy ethyl)
Amide, the chloralkane are 1,2-, bis- chloroheptane；The olefin(e) acid substance is 4- methyl -4- penetenoic acid；The acrylamide
Class monomer is N tert butyl acrylamide；
The raw material for preparing of the modified guar includes guar gum, acid anhydrides, amine substance, weight ratio 1:0.35:0.5；
The acid anhydrides is maleic anhydride, and the amine substance is two (ethoxy) methyl lauryl ammonium chlorides；The ammonium salt is TTAC；
The diatomite is bought from Qingdao Sheng Tai Gui Ye Co., Ltd, trade mark TZ525；
A kind of preparation method of the brown paper drying strengthening agent, step include, by amphiprotic polyacrylamide lotion, modified melon
That glue, ammonium salt, diatomite are add to deionized water, and are stirred 2h at 80 DEG C, are cooled to room temperature, and are stirred evenly to get dry strong
Agent；The weight ratio of the amphiprotic polyacrylamide lotion and deionized water is 1:30.
Embodiment 14
It includes: amphiprotic polyacrylamide lotion, modified guar, ammonium that a kind of brown paper of moisture-resistant, which prepares raw material with drying strengthening agent,
Salt, diatomite；The amphiprotic polyacrylamide lotion, modified guar, ammonium salt, diatomite weight ratio be 1:0.4:0.2:
0.08；
The raw material for preparing of the amphiprotic polyacrylamide lotion includes: component A, olefin(e) acid substance, acrylamide monomers
Combination, weight ratio 1:1:3.5；The raw material for preparing of the component A includes alkenylamide derivative and alkyl chloride containing methoxyl group
Hydrocarbon, weight ratio 1:0.8；The alkenylamide derivative containing methoxyl group is N, 11 carbon -10- alkene of N- bis- (1- methoxy ethyl)
Amide, the chloralkane are 1,2-, bis- chloroheptane；The olefin(e) acid substance is 4- methyl -4- penetenoic acid；The acrylamide
Class monomer is N tert butyl acrylamide；
The raw material for preparing of the modified guar includes guar gum, acid anhydrides, amine substance, weight ratio 1:0.35:0.5；
The acid anhydrides is acrylic anhydride, and the amine substance is two (2- hydroxyethyl)-methyl-tridecyl ammonium chloride；The ammonium salt
For TTAC；The diatomite is bought from Qingdao Sheng Tai Gui Ye Co., Ltd, trade mark TZ525；
A kind of preparation method of the brown paper drying strengthening agent, step include, by amphiprotic polyacrylamide lotion, modified melon
That glue, ammonium salt, diatomite are add to deionized water, and are stirred 2h at 80 DEG C, are cooled to room temperature, and are stirred evenly to get dry strong
Agent；The weight ratio of the amphiprotic polyacrylamide lotion and deionized water is 1:30.
Embodiment 15
It includes: amphiprotic polyacrylamide lotion, modified guar, ammonium that a kind of brown paper of moisture-resistant, which prepares raw material with drying strengthening agent,
Salt, diatomite；The amphiprotic polyacrylamide lotion, modified guar, ammonium salt, diatomite weight ratio be 1:0.4:0.2:
0.08；
The raw material for preparing of the amphiprotic polyacrylamide lotion includes: component A, olefin(e) acid substance, acrylamide monomers
Combination, weight ratio 1:1:3.5；The raw material for preparing of the component A includes alkenylamide derivative and alkyl chloride containing methoxyl group
Hydrocarbon, weight ratio 1:0.8；The alkenylamide derivative containing methoxyl group is N, 11 carbon -10- alkene of N- bis- (1- methoxy ethyl)
Amide, the chloralkane are 1,2-, bis- chloroheptane；The olefin(e) acid substance is 4- methyl -4- penetenoic acid；The acrylamide
Class monomer is N tert butyl acrylamide；
The raw material for preparing of the modified guar includes guar gum, acid anhydrides, amine substance, weight ratio 1:0.35:0.5；
The acid anhydrides is maleic anhydride, and the amine substance is two (2- hydroxyethyl)-methyl-tridecyl ammonium chloride；The ammonium salt
For TTAC；The diatomite is bought from Qingdao Sheng Tai Gui Ye Co., Ltd, trade mark TZ030；
A kind of preparation method of the brown paper drying strengthening agent, step include, by amphiprotic polyacrylamide lotion, modified melon
That glue, ammonium salt, diatomite are add to deionized water, and are stirred 2h at 80 DEG C, are cooled to room temperature, and are stirred evenly to get dry strong
Agent；The weight ratio of the amphiprotic polyacrylamide lotion and deionized water is 1:30.
Embodiment 16
It includes: amphiprotic polyacrylamide lotion, modified guar, ammonium that a kind of brown paper of moisture-resistant, which prepares raw material with drying strengthening agent,
Salt, diatomite；The amphiprotic polyacrylamide lotion, modified guar, ammonium salt, diatomite weight ratio be 1:0.4:0.2:
0.08；
The raw material for preparing of the amphiprotic polyacrylamide lotion includes: component A, olefin(e) acid substance, acrylamide monomers
Combination, weight ratio 1:1:3.5；The raw material for preparing of the component A includes alkenylamide derivative and alkyl chloride containing methoxyl group
Hydrocarbon, weight ratio 1:0.8；The alkenylamide derivative containing methoxyl group is N, 11 carbon -10- alkene of N- bis- (1- methoxy ethyl)
Amide, the chloralkane are 1,2-, bis- chloroheptane；The olefin(e) acid substance is 4- methyl -4- penetenoic acid；The acrylamide
Class monomer is N tert butyl acrylamide；
The raw material for preparing of the modified guar includes guar gum, acid anhydrides, amine substance, weight ratio 1:0.35:0.5；
The acid anhydrides is maleic anhydride, and the amine substance is two (2- hydroxyethyl)-methyl-tridecyl ammonium chloride；The ammonium salt
For TTAC；The diatomite is bought from Qingdao Sheng Tai Gui Ye Co., Ltd, trade mark TZ825；
A kind of preparation method of the brown paper drying strengthening agent, step include, by amphiprotic polyacrylamide lotion, modified melon
That glue, ammonium salt, diatomite are add to deionized water, and are stirred 2h at 80 DEG C, are cooled to room temperature, and are stirred evenly to get dry strong
Agent；The weight ratio of the amphiprotic polyacrylamide lotion and deionized water is 1:30.
Performance test
Use process: it is spare to be diluted with water 1wt% for drying strengthening agent, gets out paper pulp, and beating degree is 30 ° of SR, will dilute
Good drying strengthening agent is added into paper pulp, additive amount 12kg/t.Paper pulp is stirred evenly, handsheet quantifies 80g/m2, carried out after drying
Every strength test, object are brown paper；Wherein, the paper of drying strengthening agent is not added as one of blank group.
1. usability is tested: whether observation drying strengthening agent has precipitating, bubble to generate in use；Gradation of effects is divided into 3
Class；
A: it is generated without precipitating or bubble；
B: microprecipitation or bubble generate；
C: apparent precipitating or bubble generate.
2. tensile strength: according to GB/T12914-2008 tested for tensile strength.
3. burst index is tested: the measurement of standard GB/T24323-2009 paper pulp laboratory page physical property, test knot
Fruit is as shown in table 1.Burst index is the key index of brown paper intensity, and burst index is higher, it is identical quantitatively under pop strength
It is higher.
4. water resistance: the measurement of Cobb value can suddenly be absorbed using the XSH type of Hangzhou Qingtong Boke Automation Technology Co., Ltd.
Property analyzer according to GB/T1540-1989 method survey pattern to be measured.
5. retention effect: initial journey retention rate is calculated according to difference assay, initial journey retention rate (%)=(online slurry concentration-net
Lower white water consistency)/online slurry concentration × 100%.
Table 1
Example above-mentioned is merely illustrative, some features of the feature for explaining the disclosure.The attached claims
It is intended to the range as wide as possible for requiring to be contemplated that, and embodiments as presented herein is only according to all possible embodiment
Combined selection embodiment explanation.Therefore, the purpose of applicant is that the attached claims are not illustrated the present invention
Feature exemplary selectional restriction.And the progress in science and technology will be formed language express it is inaccurate due to and not
The possible equivalent being presently considered or son replacement, and these variations should also be interpreted in the conceived case by appended
Claim covering.
Claims (10)
1. a kind of brown paper drying strengthening agent of moisture-resistant, which is characterized in that raw material includes at least: amphiprotic polyacrylamide lotion changes
Property guar gum, ammonium salt, diatomite；The amphiprotic polyacrylamide lotion, modified guar, ammonium salt, diatomite weight ratio be
1:(0.1~0.5): (0.1~0.5): (0.01~0.1).
2. brown paper drying strengthening agent as described in claim 1, which is characterized in that the raw material of the amphiprotic polyacrylamide lotion
It includes at least: one of component A, olefin(e) acid substance, acrylamide monomers or a variety of combinations；The preparation of the component A
Raw material includes at least: the alkenylamide derivative containing methoxyl group.
3. brown paper drying strengthening agent as described in claim 1, which is characterized in that the modified guar prepares raw material at least
Including guar gum, acid anhydrides, amine substance.
4. brown paper drying strengthening agent as claimed in claim 2, which is characterized in that the component A, olefin(e) acid substance, acryloyl
The weight ratio of amine monomers is 1:(0.5~1.5): (2.5~4.5).
5. brown paper drying strengthening agent as claimed in claim 2, which is characterized in that carbon atom number is in the olefin(e) acid substance
4-8。
6. brown paper drying strengthening agent as claimed in claim 4, which is characterized in that the raw material for preparing of the component A further includes carbon
The chloralkane that atomicity is 5~10.
7. brown paper drying strengthening agent as claimed in claim 3, which is characterized in that the guar gum, acid anhydrides, amine substance weight
Amount is than being 1:(0.1~0.5): (0.2~0.8).
8. brown paper drying strengthening agent as claimed in claim 5, which is characterized in that the olefin(e) acid substance is selected from itaconic acid, lemon
One of health acid, [(2- methyl -2- propylene -1- base) oxygroup] acetic acid, 4- methyl -4- penetenoic acid or a variety of combinations.
9. brown paper drying strengthening agent as claimed in claim 7, which is characterized in that the amine substance is with hydroxyethyl
Chain alkyl ammonium chloride.
10. a kind of preparation method of the brown paper drying strengthening agent as described in claim any one of 1-9, which is characterized in that step is extremely
It less include that amphiprotic polyacrylamide lotion, modified guar, ammonium salt, diatomite are add to deionized water, stirred evenly,
Up to drying strengthening agent.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105051289A (en) * | 2013-03-26 | 2015-11-11 | 凯米罗总公司 | Process for production of paper or board |
| CN106930142A (en) * | 2015-12-31 | 2017-07-07 | 艺康美国股份有限公司 | Drying strengthening agent composition and the method for improving paper dry strength |
| CN108467455A (en) * | 2017-06-16 | 2018-08-31 | 江苏富淼科技股份有限公司 | A kind of water-soluble solid polyacrylamide and application thereof |
| CN109487620A (en) * | 2018-12-05 | 2019-03-19 | 江门市高力依科技实业有限公司 | A kind of papermaking dry-strengthening agent and preparation method thereof |
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2019
- 2019-06-17 CN CN201910521528.6A patent/CN110219204B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105051289A (en) * | 2013-03-26 | 2015-11-11 | 凯米罗总公司 | Process for production of paper or board |
| CN106930142A (en) * | 2015-12-31 | 2017-07-07 | 艺康美国股份有限公司 | Drying strengthening agent composition and the method for improving paper dry strength |
| CN108467455A (en) * | 2017-06-16 | 2018-08-31 | 江苏富淼科技股份有限公司 | A kind of water-soluble solid polyacrylamide and application thereof |
| CN109487620A (en) * | 2018-12-05 | 2019-03-19 | 江门市高力依科技实业有限公司 | A kind of papermaking dry-strengthening agent and preparation method thereof |
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Denomination of invention: A moisture resistant dry strength agent for kraft paper and its preparation method Effective date of registration: 20230926 Granted publication date: 20211207 Pledgee: Jiujiang Bank Co.,Ltd. Xinjian Branch Pledgor: NANCHANG CITY LONGRAN INDUSTRY CO.,LTD. Registration number: Y2023980059060 |