CN106368058B - A kind of graphene modification paper preparation method for coating - Google Patents
A kind of graphene modification paper preparation method for coating Download PDFInfo
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- CN106368058B CN106368058B CN201610732926.9A CN201610732926A CN106368058B CN 106368058 B CN106368058 B CN 106368058B CN 201610732926 A CN201610732926 A CN 201610732926A CN 106368058 B CN106368058 B CN 106368058B
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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
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/38—Coatings with pigments characterised by the pigments
- D21H19/40—Coatings with pigments characterised by the pigments siliceous, e.g. clays
-
- 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
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
- D21H19/56—Macromolecular organic compounds or oligomers thereof obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H19/58—Polymers or oligomers of diolefins, aromatic vinyl monomers or unsaturated acids or derivatives thereof
-
- 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
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
- D21H19/64—Inorganic compounds
-
- 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
- D21H21/06—Paper forming aids
-
- 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
- D21H21/20—Wet strength agents
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Paper (AREA)
Abstract
The invention discloses a kind of graphenes to be modified paper preparation method for coating.By graphene, this new function material introduces coating for paper system to the present invention, has upgraded coating for paper formula, the compatibility for optimizing coating for paper, has improved coating and ways and methods.First, mechanical shearing dispersion is carried out to graphene dispersing solution, then Schistose kaolinite is added, certain solid content pigment liquid is formed by shearing dispersion, the auxiliary agents such as certain mass latex, NaOH solution, lubricant, dispersant, thickener are then sequentially added, obtaining graphene after experience high speed shear is modified coating for paper.The graphene of the present invention is modified paper coating preparation mild condition, need not add new equipment, simple for process.The graphene of the present invention, which is modified coating for paper, has good coating waste water adaptability, and barrier property and mechanical property to coating paper, which have, is more obviously improved effect.
Description
Technical field
The invention belongs to pulp and paper technology fields, and in particular to a kind of graphene modification paper preparation method for coating.
Background technology
Nanometer particle-modified coating is that nano-particle is dispersed in conventional coating, utilizes the unique materialization of nano-particle
Conventional coating of verifying is modified, to significantly improve the certain performances of coating.Nanometer particle-modified coating has become paint field
One of research hotspot.《Chinese coatings industry innovation and development target》By " research of nano-material modified coating principle and the mechanism of action "
It is classified as main research, reflects the significance for developing nano-material modified coating.Coating for paper is by dispersible pigment dispersion, glue
The mixed system of stick and other auxiliary agents composition.Nano-particle is dispersed in coating for paper system, because its grain size is small, specific surface
Atom proportion is big greatly, in superficial layer for product, can fully be adsorbed with the high molecular polymer in coating system in theory,
Bonding enhances the interfacial adhesion of particle and matrix；Moreover, nano-particle activity is strong, it can be with pigment, adhesive and other auxiliary agents
Strong interaction occurs for many active sites present in equimolecular, to form stable and uniform coating, thus can show
Writing improves the optical property and mechanical property of coating paper.
Graphene is by carbon atom with sp2Hexatomic ring that hybridized orbit is interconnected to form it is tightly packed at two dimension（2D）
Periodic lattice structure, and constitute zero dimension fullerene（0D）, one-dimensional carbon nanotube（1D）, three-dimensional graphite（3D）And diamond
Basic unit.Graphene is that oneself knows that two-dimensional material most thin in material, thickness are only 0.335nm in the world, is had very high
Mechanical strength（1060GPa）, the electron mobility of superelevation（2×105cm2/ Vs), great specific surface area（2600m2/g）.
Popular research object of the graphene as current scientific research field, its stability, photoelectric properties, electromagnetic performance etc. are obtained for extensively
General concern.In addition, it is a kind of material impermeable with single layer two dimension carbon skeleton, it is based on its unique structural property, quilt
It is widely used in optimizing the barrier property of composite material.The addition of graphene makes the gas leak path of material change, prolongs
Grown the path of gas molecule or the diffusion of other molecules improves composite material to increase the transmission difficulty of small molecule
The barrier property of itself.Therefore, by graphene, this new function material is introduced into coating for paper system, and modified traditional paper applies
Material optimizes formulation for coating material, promotes coating property, will necessarily generate actively impact to Paper Coating processing industry.It is applied by surface
Cloth application, it is contemplated that the barrier property and mechanical property of coating paper will be improved significantly.
Invention content
In view of the deficiencies of the prior art, the present invention provides a kind of graphenes to be modified paper preparation method for coating, the present invention
Include the following steps：
Step（1）：It first weighs the distilled water centainly come to be placed in dispersion cup, then weighs a certain amount of graphene dispersion
Liquid is added in distilled water；Agitation grinding dispersion multiple purpose aeroplane is used to stir 10min under conditions of rotating speed is 300-500rpm.
Step（2）：A certain amount of Schistose kaolinite is weighed, step is slowly added into（1）In dispersion liquid in, paid attention to
Schistose kaolinite particle is not exposed to the inner wall and stirring rod of container in journey, is gradually increased in the process according to the actual conditions of dispersion
Rotating speed is to 1500rpm, it is ensured that Schistose kaolinite and graphene are fully dispersed；Hereafter latex, NaOH are added in a certain order
The auxiliary agents such as solution, lubricant, dispersant, wet strength agent, thickener, auxiliary agent is added with certain time interval, to ensure to disperse
Uniformly fully.
Step（3）：After all raw material additions finish, rotating speed is increased to 2000rpm or so, redisperse 20min.
It is slowly decreased rotating speed after 20min, the detection for generating aeration physical property in coating is prevented, after speed is down to 0, from dispersion machine
On remove coating, obtain graphene be modified coating for paper.
In the above method, step（1）The graphene is a kind of material impermeable with single layer two dimension carbon skeleton, stone
The solid content of black alkene aqueous dispersion liquid is 3.5%, and graphene addition is 0.2-0.4% in coating system（Relative to over dry face
Material）.
In the above method, step（2）The over dry Schistose kaolinite pigment is 300g, is with Schistose kaolinite addition
Benchmark, dosage of latex 40%, NaOH dosages 0.08%, lubricant quantity 0.6%, dispersant dosage 0.3%, thickener dosage 0.1
%。
In the above method, step（2）The solid content 50% of the latex, NaOH solid contents 30%, lubricant solid content
23.5%, dispersant solid content 42.4%, thickener solid content 29.3%.
In the above method, step（2）The latex is one kind in styrene-butadiene latex or styrene-acrylic latex, and lubricant is fat
Esters of gallic acid, dispersant are Sodium Polyacrylate or calgon, and thickener is carboxymethyl cellulose or hydroxyethyl cellulose.
Beneficial effects of the present invention：New function material graphene is introduced coating for paper system by the present invention, to conventional paper
It opens coating to be modified, is prepared for the excellent coating for paper of processing performance.Coating waste water application shows that graphene is modified paper and applies
Material can obviously improve the barrier property and mechanical property of coating paper, to be conducive to the promotion of coating paper class.
Specific implementation mode
With reference to embodiment, the present invention is described further.
Embodiment 1
Coating forms：Over dry pigment 300g, on the basis of over dry Schistose kaolinite addition, dosage of latex 40%, NaOH is used
Amount 0.08%, lubricant quantity 0.6%, dispersant dosage 0.3%, 0.15 % of thickener dosage.Wherein, the solid content 50% of latex,
NaOH solid contents 30%, lubricant solid content 23.5%, dispersant solid content 42.4%, thickener solid content 29.3%.
According to the component amount of taking calculated, first weighs 102 g distilled water and be placed in dispersion cup, then weigh 0.2%
（To over dry pigment mass）Graphene dispersing solution, be added distilled water in；Use agitation grinding dispersion multiple purpose aeroplane rotating speed for
10min is stirred under conditions of 300-500rpm；The Schistose kaolinite for weighing over dry 300g again, is slowly added into dispersion liquid,
Schistose kaolinite particle is not exposed to the inner wall of container and the stirring rod of dispersion machine during paying attention to, in the process according to dispersion
Rotating speed is gradually increased to 1500rpm in actual conditions, it is ensured that Schistose kaolinite and graphene are fully dispersed；Hereafter according to certain suitable
The auxiliary agents such as latex, NaOH solution, lubricant, dispersant, thickener are added in sequence, and auxiliary agent is added with certain time interval, with
Guarantee is uniformly dispersed fully.After all raw material additions finish, rotating speed is increased to 2000rpm or so, redisperse about 20min.
It is slowly decreased rotating speed after 20min, the detection for generating aeration physical property in coating is prevented, after speed is down to 0, from dispersion machine
On remove coating.In addition coating that one group is not added graphene is prepared again as blank group.Finally, coating is coated on Bai Kayuan
On paper, by barrier property and mechanics properties testing, it can be found that the introducing of graphene, can obviously improve the barrier property of coating paper
Energy and mechanical property.
Embodiment 2
Coating forms：Over dry pigment 300g, on the basis of Schistose kaolinite addition, dosage of latex 40%（To over dry face
Material, similarly hereinafter）, NaOH dosages 0.08%, lubricant quantity 0.6%, dispersant dosage 0.3%, 0.15 % of thickener dosage.Wherein, glue
The solid content 50% of breast, NaOH solid contents 30%, lubricant solid content 23.5%, dispersant solid content 42.4%, thickener solid content
29.3%。
According to the component amount of taking calculated, first weighs 102 g distilled water and be placed in dispersion cup, then weigh 0.4%
（To over dry pigment mass）Graphene dispersing solution, be added distilled water in；Use agitation grinding dispersion multiple purpose aeroplane rotating speed for
10min is stirred under conditions of 300-500rpm；The Schistose kaolinite for weighing over dry 300g again, is slowly added into dispersion liquid,
Schistose kaolinite particle is not exposed to the inner wall of container and the stirring rod of dispersion machine during paying attention to, in the process according to dispersion
Rotating speed is gradually increased to 1500rpm in actual conditions, it is ensured that Schistose kaolinite and graphene are fully dispersed；Hereafter according to certain suitable
The auxiliary agents such as latex, NaOH solution, lubricant, dispersant, thickener are added in sequence, and auxiliary agent is added with certain time interval, with
Guarantee is uniformly dispersed fully.After all raw material additions finish, rotating speed is increased to 2000rpm or so, redisperse about 20min.
It is slowly decreased rotating speed after 20min, the detection for generating aeration physical property in coating is prevented, after speed is down to 0, from dispersion machine
On remove coating.In addition coating that one group is not added graphene is prepared again as blank group.Finally, coating is coated on Bai Kayuan
On paper, by barrier property and mechanics properties testing, it can be found that the introducing of graphene, can obviously improve the barrier property of coating paper
Energy and mechanical property.
Graphene of the present invention is a kind of material impermeable with single layer two dimension carbon skeleton, its addition makes material
The gas leak path of material changes, and the path of gas molecule or the diffusion of other molecules is extended, to increase small point
The transmission difficulty of son, improves the barrier property of material itself.On the other hand, graphene is most tough material, fracture strength
200 times more taller than best steel；It has good elasticity, stretch range that can reach the 20% of own dimensions again simultaneously.Cause
This, graphene can have larger improvement result to the mechanical property of coating and coating.Meanwhile the present invention strongly controls graphene in paper
The addition in coating is opened, can realize that quality and benifit maximizes the balance between cost of material minimumization well.
Claims (1)
1. a kind of graphene is modified paper preparation method for coating, it is characterised in that include the following steps：
Step（1）：It first weighs a certain amount of distilled water to be placed in dispersion cup, then weighs a certain amount of graphene dispersing solution,
It is added in distilled water；Agitation grinding dispersion multiple purpose aeroplane is used to stir 10min under conditions of rotating speed is 300-500rpm；
Step（2）：A certain amount of Schistose kaolinite is weighed, step is slowly added into（1）In dispersion liquid in, sheet in the process
Kaolin particle is not exposed to the inner wall and stirring rod of container, and rotating speed is gradually increased extremely according to the actual conditions of dispersion in the process
1500rpm, it is ensured that Schistose kaolinite and graphene are fully dispersed；Hereafter it is added auxiliary agent in a certain order, including latex,
NaOH solution, lubricant, dispersant, thickener, auxiliary agent are added with certain time interval, to ensure to be uniformly dispersed fully；
Step（3）：After all raw material additions finish, rotating speed is increased to 2000rpm or so, redisperse 20min；After 20min
It is slowly decreased rotating speed, prevents the detection for generating aeration physical property in coating from being removed from dispersion machine after speed is down to 0
Coating obtains graphene and is modified coating for paper；
Step（1）The graphene is a kind of material impermeable with single layer two dimension carbon skeleton, graphene aqueous dispersion liquid
Solid content be 3.5%, on the basis of over dry pigment mass, in coating system graphene addition be 0.2-0.4%；
Step（2）The Schistose kaolinite pigment is 300g, on the basis of the Schistose kaolinite addition of over dry, dosage of latex
For 40%, NaOH dosages 0.08%, lubricant quantity 0.6%, dispersant dosage 0.3%, thickener dosage 0.1%；
Step（2）The solid content 50% of the latex, NaOH solid contents 30%, lubricant solid content 23.5%, dispersant solid content
42.4%, thickener solid content 29.3%；
Step（2）The latex is one kind in styrene-butadiene latex or styrene-acrylic latex, and lubricant is fatty acid ester, and dispersant is
Sodium Polyacrylate or calgon, thickener are carboxymethyl cellulose or hydroxyethyl cellulose.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610732926.9A CN106368058B (en) | 2016-08-27 | 2016-08-27 | A kind of graphene modification paper preparation method for coating |
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| CN201610732926.9A CN106368058B (en) | 2016-08-27 | 2016-08-27 | A kind of graphene modification paper preparation method for coating |
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| CN110541325A (en) * | 2018-05-28 | 2019-12-06 | 宁波亚洲浆纸业有限公司 | papermaking coating, preparation method thereof and paperboard |
| CN108755268A (en) * | 2018-05-29 | 2018-11-06 | 宁波亚洲浆纸业有限公司 | A kind of moisture-proof coating of paper grade (stock), asphalt board and preparation method thereof |
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| JP2001262493A (en) * | 2000-03-15 | 2001-09-26 | Mitsubishi Paper Mills Ltd | Coated paper for printing and method for producing the same |
| CN104650714A (en) * | 2015-02-02 | 2015-05-27 | 安徽省东瑞装饰材料有限公司 | Flame-retardant waterproof coating for interior wall of building and preparation method thereof |
| CN104947501A (en) * | 2015-05-27 | 2015-09-30 | 宁波中华纸业有限公司 | Preparation method of coating, coating and coated paper |
| CN105315814A (en) * | 2015-10-19 | 2016-02-10 | 青岛瑞利特新材料科技有限公司 | Graphene formaldehyde-resisting paint and preparing method thereof |
| CN105348997A (en) * | 2015-12-18 | 2016-02-24 | 陈荣芳 | Resin powder coating |
| CN105567049A (en) * | 2016-01-29 | 2016-05-11 | 华若延 | Marking paint |
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Effective date of registration: 20180920 Address after: 317523 post warehouse Road, silo Industrial Zone, Ze Guo Town, Wenling City, Taizhou, Zhejiang Applicant after: Wenling Xinchang Paper Industry Co., Ltd. Address before: 310018 No. 2 street, Xiasha Higher Education Park, Hangzhou, Zhejiang, 928 Applicant before: Zhejiang Sci-Tech University |
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