CN109235122A - A kind of preparation method of paper grade (stock) porous calcium carbonate and coating paper - Google Patents
A kind of preparation method of paper grade (stock) porous calcium carbonate and coating paper Download PDFInfo
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- CN109235122A CN109235122A CN201811082715.0A CN201811082715A CN109235122A CN 109235122 A CN109235122 A CN 109235122A CN 201811082715 A CN201811082715 A CN 201811082715A CN 109235122 A CN109235122 A CN 109235122A
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- calcium carbonate
- preparation
- coating
- paper
- modifying agent
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Links
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 title claims abstract description 255
- 229910000019 calcium carbonate Inorganic materials 0.000 title claims abstract description 122
- 239000011248 coating agent Substances 0.000 title claims abstract description 79
- 238000000576 coating method Methods 0.000 title claims abstract description 79
- 238000002360 preparation method Methods 0.000 title claims abstract description 36
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 43
- 239000002253 acid Substances 0.000 claims abstract description 14
- 238000006243 chemical reaction Methods 0.000 claims description 42
- 239000000243 solution Substances 0.000 claims description 38
- 238000000034 method Methods 0.000 claims description 16
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 14
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 12
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 12
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 12
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 12
- 229920000126 latex Polymers 0.000 claims description 10
- 239000003223 protective agent Substances 0.000 claims description 10
- 239000002174 Styrene-butadiene Substances 0.000 claims description 9
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims description 9
- 239000011115 styrene butadiene Substances 0.000 claims description 9
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 9
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 7
- 239000011575 calcium Substances 0.000 claims description 7
- 229910052791 calcium Inorganic materials 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 7
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 6
- 235000019270 ammonium chloride Nutrition 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 239000004115 Sodium Silicate Substances 0.000 claims description 3
- JHXCINJSAAFBDH-UHFFFAOYSA-N [Ca].O[Si](O)(O)O Chemical compound [Ca].O[Si](O)(O)O JHXCINJSAAFBDH-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- ZNCPFRVNHGOPAG-UHFFFAOYSA-L sodium oxalate Chemical compound [Na+].[Na+].[O-]C(=O)C([O-])=O ZNCPFRVNHGOPAG-UHFFFAOYSA-L 0.000 claims description 3
- 229940039790 sodium oxalate Drugs 0.000 claims description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 3
- 239000012670 alkaline solution Substances 0.000 claims description 2
- 150000002431 hydrogen Chemical class 0.000 claims 1
- 229910052739 hydrogen Inorganic materials 0.000 claims 1
- 239000001257 hydrogen Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 235000010216 calcium carbonate Nutrition 0.000 description 93
- 239000000123 paper Substances 0.000 description 44
- 238000000227 grinding Methods 0.000 description 14
- 239000000654 additive Substances 0.000 description 8
- 230000000996 additive effect Effects 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 230000000704 physical effect Effects 0.000 description 6
- 239000002002 slurry Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000009472 formulation Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 4
- 238000007639 printing Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- NKWPZUCBCARRDP-UHFFFAOYSA-L calcium bicarbonate Chemical group [Ca+2].OC([O-])=O.OC([O-])=O NKWPZUCBCARRDP-UHFFFAOYSA-L 0.000 description 2
- 229910000020 calcium bicarbonate Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 239000004816 latex Substances 0.000 description 2
- 235000006408 oxalic acid Nutrition 0.000 description 2
- -1 papermaking Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 229910021532 Calcite Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000035 biogenic effect Effects 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- FYHXNYLLNIKZMR-UHFFFAOYSA-N calcium;carbonic acid Chemical compound [Ca].OC(O)=O FYHXNYLLNIKZMR-UHFFFAOYSA-N 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000976 ink Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007761 roller coating Methods 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000009955 starching Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
- D21H19/385—Oxides, hydroxides or carbonates
-
- 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
- D21H17/65—Acid 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
- 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
- D21H17/69—Water-insoluble compounds, e.g. fillers, pigments modified, e.g. by association with other compositions prior to incorporation in the pulp or paper
-
- 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
- D21H19/80—Paper comprising more than one coating
- D21H19/84—Paper comprising more than one coating on both sides of the substrate
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paper (AREA)
Abstract
This application discloses the preparation method of a kind of paper grade (stock) porous calcium carbonate and coating paper, the preparation method includes: offer calcium carbonate serosity；Modifying agent is added into calcium carbonate serosity to be reacted to obtain porous calcium carbonate；Wherein modifying agent is acid solution.By the above-mentioned means, the application can simplify preparation process, reduce production cost.
Description
Technical field
This application involves pulp technology for making paper, more particularly to the preparation side of a kind of paper grade (stock) porous calcium carbonate and coating paper
Method.
Background technique
Calcium carbonate (CaCO3) it is biogenic mineral and a kind of function admirable, cheap work that nature is widely present
Industry raw material can be used for the filler of the industries such as rubber, plastics, coating, papermaking, ink, medicine, cosmetics, detergent.Calcium carbonate
Belong to ABO3The polytype crystal of class mainly has calcite (rhombohedron type), aragonite (needle-shaped) and vaterite (spherical shape).
Porous material has biggish specific surface area because of its unique pore structure, and then shows some unique property
Can, there is preliminary application in the energy, environmental protection and chemical field, and need further to be developed.
It is modified by carrying out porous to traditional calcium carbonate, improves its application performance, to meet the hair of new material, new technology
Exhibition, is calcium carbonate industry urgent problem to be solved.
Present inventor has found the presently disclosed method for preparing porous calcium carbonate in long-term R&D process,
General all more complicated, higher cost unfavorable uses industrialized production and application.For example, by by CaCl2Aqueous solution and it is mixed with crystallization
Controlling agent H2SO4NH4HCO3Aqueous solution carries out knock-on reaction, and loose uniform porosity spherical super fine Paris white has been made
Body.The CaCl in knock-on reaction system2Concentration is 1mol/L, NH4HCO3Concentration is 2mol/L, H2SO4Concentration is 0.4mmol/L.
The method equipment investment is larger, and the prices of raw materials are higher.
Summary of the invention
The application mainly solving the technical problems that provide the preparation method of a kind of paper grade (stock) porous calcium carbonate and coating paper,
Preparation process can be simplified, reduce production cost.
In order to solve the above technical problems, the technical solution that the application uses is: providing a kind of porous carbonic acid of paper grade (stock)
The preparation method of calcium, the preparation method include: offer calcium carbonate serosity；Modifying agent is added into calcium carbonate serosity to be reacted
Obtain porous calcium carbonate；Wherein modifying agent is acid solution.
Wherein, it includes: to be added dropwise to change several times into calcium carbonate serosity that modifying agent is added into calcium carbonate serosity and carries out reaction
Property agent.
Wherein, modifying agent be the hydrochloric acid of 3~6% concentration, the sulfuric acid of 3~6% concentration, the phosphoric acid of 8~11% concentration, 8~
One or more of the citric acid of 11% concentration, ammonium chloride of 8~11% concentration.
Wherein, the additive amount of modifying agent is the 10~40% of calcium carbonate absolute dry mass.
Wherein, the reaction temperature of modified-reaction is 30~60 DEG C.
Wherein, before into calcium carbonate serosity, addition modifying agent is reacted further include: be added and protect into calcium carbonate serosity
Agent is protected, protective agent is alkaline solution.
Wherein, protective agent is calcium bicarbonate solution, sodium bicarbonate solution, silicic acid calcium solution, sodium silicate solution, and sodium oxalate is molten
One or more of liquid.
Wherein, after into calcium carbonate serosity, addition modifying agent is reacted further include: pass through the reaction solution after reaction
Grinder is ground to obtain porous calcium carbonate.
In order to solve the above technical problems, another technical solution that the application uses is: providing a kind of preparation of coating paper
Method, which comprises provide coating, wherein coating includes porous calcium carbonate, and porous calcium carbonate is by starching to calcium carbonate
Modifying agent is added in liquid and is modified what reaction obtained, modifying agent is acid solution；Body paper is provided, is applied in at least one side of body paper
Coating paper is made in cloth coating.
Wherein, coating includes 85~95 parts of porous calcium carbonate, 5~15 parts of styrene butadiene latices.
The beneficial effect of the application is: being in contrast to the prior art, the application provides a kind of porous carbonic acid of paper grade (stock)
The preparation method of calcium is added acid modification agent in this method directly into calcium carbonate serosity, is modified to calcium carbonate surface, with
Prepare porous calcium carbonate.In this method, the viscosity of reaction solution system is more stable, easily controllable reaction rate and the extent of reaction,
It is readily produced；The porosity of gained porous calcium carbonate is high, homogeneity is good.
Detailed description of the invention
Fig. 1 is the flow diagram of the preparation method first embodiment of the application paper grade (stock) porous calcium carbonate；
Fig. 2 is the SEM test chart before the application is calcium carbonate modified；
Fig. 3 is the SEM test chart after the application is calcium carbonate modified；
Fig. 4 is the flow diagram of the preparation method first embodiment of the application coating paper.
Specific embodiment
It is right as follows in conjunction with drawings and embodiments to keep the purpose, technical solution and effect of the application clearer, clear
The application is further described.
The preparation method and gained porous calcium carbonate that the application provides a kind of paper grade (stock) porous calcium carbonate are in field of papermaking
Application.This method utilizes common calcium carbonate, prepares porous calcium carbonate by better simply technique, and can be successfully applied to paper
Coating is opened, the performance of coating paper is improved.
Referring to Fig. 1, Fig. 1 is the process signal of the preparation method first embodiment of the application paper grade (stock) porous calcium carbonate
Figure, in this embodiment, this method comprises the following steps:
S101: calcium carbonate serosity is provided.
Wherein, calcium carbonate powder is mixed with water, forms calcium carbonate serosity.
S102: being added modifying agent into calcium carbonate serosity and reacted to obtain porous calcium carbonate, and wherein modifying agent is acidity
Solution.
Wherein, modifying agent is weakly acidic solution or the lower acid solution of concentration.
In this embodiment, by being modified using surface of the acid modification agent to calcium carbonate, porous carbonic acid is obtained
Calcium.This method is simple, reacts easy to control, and equipment investment is small, and cost is relatively low, is conducive to industrialized production and application.
Wherein, in one embodiment, calcium carbonate used is grinding calcium carbonate in calcium carbonate serosity, the grinding calcium carbonate
Partial size be C40~C99 (i.e. the particle accounting of partial size≤2 μm is between 40%~99%), such as can be C50, C60, C75,
C85, C90, C95 etc..Grinder can be used calcium carbonate serosity is ground to obtain grinding calcium carbonate slurries.Calcium carbonate serosity
Concentration be 20~50%, such as 25%, 35%, 45% etc., concentration is too low to make subsequent reactions too slow, and reaction efficiency is low, no
Conducive to industrial production；Concentration is too high, reaction can be made too violent, the hole of gained porous calcium carbonate is uneven, and is also possible to make
It reacts insufficient, or polishes calcium carbonate surface, do not have the effect of porous.
Wherein, in one embodiment, calcium carbonate is modified using acid solution, the reaction temperature of modified-reaction is
30~60 DEG C, such as 35 DEG C, 42 DEG C, 51 DEG C, 56 DEG C etc..Specifically, the calcium carbonate serosity that concentration is 20~50% is placed in 30
In~60 DEG C of water-bath, with maintaining reaction temperature, in other embodiments, it also can choose the heating sides such as oil bath, electric heating
Formula is heated.Temperature is too low to make reaction too slow, and reaction efficiency is low, is unfavorable for industrial production；Temperature is too high, can make reaction too
Acutely, the hole of gained porous calcium carbonate is uneven, and has certain danger.
Then, before modifying agent is added, a certain amount of protective agent is first added into calcium carbonate serosity.Specifically, modified
Agent be it is acid, calcium carbonate be it is alkaline, in the moment that modifying agent is added, vigorous reaction can occur for modifying agent and calcium carbonate, instead
Excessive velocities are answered, so that hole is uneven, or even can polish the surface of calcium carbonate, do not have the effect of porous modification.Therefore, may be used
A certain amount of alkaline matter is added in advance with selection, to slow down control reaction rate, guarantees reaction effect.Wherein, protective agent can
Think calcium bicarbonate solution, sodium bicarbonate solution, silicic acid calcium solution, sodium silicate solution, one or more of sodium oxalate solution；
Protectant additional amount is 0.1~5%, such as 0.2%, 0.5%, 0.8%, 1.2%, 2.0%, 3.0%, 5.0% etc..Protection
The additional amount of agent can not have to very accurately, appropriate to be added in 0.1~5% range.
After mixing by calcium carbonate serosity and protective agent, modifying agent is added into mixed liquor.It specifically, can be with slow
Modifying agent is added in the mode of dropwise addition, such as using dropping funel, is slowly added into dropwise.Select the mode being slowly added to, Ke Yiyou
Effect control reaction rate, obtains the uniform porous calcium carbonate of hole.It in one embodiment, can be several times to calcium carbonate serosity
Middle dropwise addition modifying agent；It is added dropwise after a certain period of time, first stops being added dropwise, observing response phenomenon, subsequent drop is controlled according to reacting phenomenon
The dripping quantity and rate of addition added, it is too fast or too slow to prevent reacting, it is adversely affected to reaction zone.Wherein, modifying agent is weak acid
Property solution or the lower acid solution of concentration can be the hydrochloric acid of 3~6% concentration, sulfuric acid of 3~6% concentration, 8~11% dense
One or more of the phosphoric acid of degree, the citric acid of 8~11% concentration, ammonium chloride of 8~11% concentration；Such as 5% concentration salt
Acid, 5% concentration sulfuric acid, 10% concentration phosphoric acid, 10% concentration citric acid, 10% concentration ammonium chloride etc..Modifying agent additive amount is carbon
The 10~40% of sour calcium absolute dry mass, such as 15%, 20%, 25%, 30%, 35% etc., additive amount is very few to make reaction not fill
Point, reaction efficiency is low；If additive amount is excessive, it can react superfluous, be easy to polish calcium carbonate surface, hole is uneven, porosity
It is lower, and can also make subsequent porous calcium carbonate solution PH too low, increase subsequent treatment process.
After modifying agent and calcium carbonate reaction, mixed liquor is ground, grinder can be used and ground, pass through
Grinding can make partial size more uniform.Milling time is 5~30 minutes, such as 8 minutes, 15 minutes, 21 minutes, 26 minutes etc..
It after grinding, does not need to do subsequent processing, discharge the porous calcium carbonate modified up to surface.The porous carbonic acid of gained
The specific surface area of calcium is larger, and surface pore is uniform, is the SEM survey before the application is calcium carbonate modified referring specifically to Fig. 2-3, Fig. 2
Attempting, Fig. 3 is Electronic Speculum (SEM) test chart after the application is calcium carbonate modified, it can be obtained from the figure that, modified calcium carbonate surface is covered with hole
Gap, and hole is uniform.
The viscosity of preparation method provided herein, reaction solution system is more stable, easily controllable reaction rate and anti-
Degree is answered, is readily produced；The porosity of gained porous calcium carbonate is high, homogeneity is good；Protective agent is introduced in reaction process, is reacted
Rate is more controllable；The porous calcium carbonate suspension of formation is easy to apply in existing coating system, is less prone to bad existing
As.
Based on this, the application also provides a kind of preparation method of coating paper, coating paper obtained, because containing in coating coating
Porous calcium carbonate can be improved absorbability of the coating paper to ink, retentivity；Make paper that there is better absorbency and good
Ink setting performance also improves the luxury aspect of printing while printing operation improves.
Referring to Fig. 4, Fig. 4 is the flow diagram of the preparation method first embodiment of the application coating paper, in the reality
It applies in mode, this method comprises the following steps:
S401: providing coating, and wherein coating includes porous calcium carbonate, and porous calcium carbonate is by adding into calcium carbonate serosity
Enter modifying agent and be modified what reaction obtained, modifying agent is acid solution.
Wherein, coating includes latex and porous calcium carbonate, and the specific preparation method of porous calcium carbonate please refers to above-mentioned implementation
The description of mode, details are not described herein.
In one embodiment, coating includes 85~95 parts of porous calcium carbonate, 5~15 parts of styrene butadiene glue
Cream, such as 86 parts of porous calcium carbonate and 14 parts of styrene butadiene latices；90 parts of porous calcium carbonate and 10 parts of benzene second
Alkene butadiene latex etc..
S402: providing body paper, is coated with coating in at least one side of body paper, coating paper is made.
Wherein it is possible to be coated using modes such as blade coating, roller coating, coating coating weight is 6gsm.It can according to need choosing
One side coating is selected, also can choose double spread, the coating weight on two sides can be the same or different.
By the cardboard after coating, dry, press polish, obtains coating paper.
Below the application will be illustrated, explained by several groups of specific experiment examples and comparative experiments example, but do not applied
To limit scope of the present application.
Embodiment 1
A certain amount of grinding calcium carbonate slurries C95 is taken, is diluted with water to 50% concentration, is placed in 40 DEG C of water-baths, is added
A certain amount of sodium bicarbonate solution is uniformly mixed.It is slowly added sulfuric acid several times again, the additive amount of sulfuric acid is calcium carbonate absolute dry mass
20%, stirring terminates to fully reacting after addition.Then carry out grinding 20min using grinder, discharge up at
Product porous calcium carbonate C.
Then, coating paper is prepared using the surface modified calcium carbonate of preparation, formulation for coating material: 90 parts of surface modified calcium carbonates,
10 parts of styrene butadiene latices.
Coating: being coated with coating for identical body paper surface, obtains corresponding coating paper, and coating coating weight is 6gsm.It will apply
Well laid pattern detects physical property, and see Table 1 for details for test result.
Embodiment 2
A certain amount of grinding calcium carbonate slurries C95 is taken, is diluted with water to 30% concentration, is placed in 50 DEG C of water-baths, is added
A certain amount of sodium bicarbonate solution is uniformly mixed.It is slowly added phosphoric acid several times again, the additive amount of phosphoric acid is calcium carbonate absolute dry mass
20%, be stirred for fully reacting terminating after addition.Then carry out grinding 5min using grinder, discharge up at
Product porous calcium carbonate B.
Then, coating paper is prepared using the surface modified calcium carbonate of preparation, formulation for coating material: 90 parts of surface modified calcium carbonates,
10 parts of styrene butadiene latices.
Coating: being coated with coating for identical body paper surface, obtains corresponding coating paper, and coating coating weight is 6gsm.It will apply
Well laid pattern detects physical property, and see Table 1 for details for test result.
Embodiment 3
A certain amount of grinding calcium carbonate slurries C95 is taken, is diluted with water to 20% concentration, is placed in 60 DEG C of water-baths, is added
A certain amount of sodium bicarbonate solution is uniformly mixed.It is slowly added oxalic acid several times again, the additive amount of oxalic acid is calcium carbonate absolute dry mass
30%, be stirred for fully reacting terminating after addition.Then it carries out grinding 30min using grinder, discharges to obtain the final product
Finished product porous calcium carbonate D.
Then, coating paper is prepared using the surface modified calcium carbonate of preparation, formulation for coating material: 90 parts of surface modified calcium carbonates,
10 parts of styrene butadiene latices.
Coating: being coated with coating for identical body paper surface, obtains corresponding coating paper, and coating coating weight is 6gsm.It will apply
Well laid pattern detects physical property, and see Table 1 for details for test result.
Embodiment 4
A certain amount of grinding calcium carbonate slurries C95 is taken, is diluted with water to 50% concentration, is placed in 60 DEG C of water-baths, is added
A certain amount of sodium bicarbonate solution is uniformly mixed.It is slowly added ammonium chloride solution several times again, the additive amount of ammonium chloride solution is carbon
The 40% of sour calcium absolute dry mass, is stirred for fully reacting terminating after addition.Then it is ground using grinder
10min, discharging get product porous calcium carbonate E.
Then, coating paper is prepared using the surface modified calcium carbonate of preparation, formulation for coating material: 90 parts of surface modified calcium carbonates,
10 parts of styrene butadiene latices.
Coating: being coated with coating for identical body paper surface, obtains corresponding coating paper, and coating coating weight is 6gsm.It will apply
Well laid pattern detects physical property, and see Table 1 for details for test result.
Comparative example
Directly prepare coating paper using grinding calcium carbonate slurries C95, formulation for coating material: 90 parts without modified grinding carbonic acid
Calcium, 10 parts of styrene butadiene latices.
Coating: being coated with coating for identical body paper surface, obtains corresponding coating paper, and coating coating weight is 6gsm.It will apply
Well laid pattern detects physical property, and see Table 1 for details for test result.
Table 1: the physical property measurement result of embodiment and comparative example
Note: " ★ " gets over multilist presentation surface hole and is more obvious in table.
The above experimental data can be seen that be modified by the surface to calcium carbonate, can be improved absorption of the calcium carbonate to ink
Property, retentivity, make paper have better absorbency and good ink setting performance, printing operation improve while,
Improve the luxury aspect of printing.
The viscosity of above scheme, the preparation method of porous calcium carbonate provided by the present application, reaction solution system is more stable, easily
In control reaction rate and the extent of reaction, it is readily produced；The porosity of gained porous calcium carbonate is high, homogeneity is good；Reaction process
In also introduce protective agent, reaction rate is more controllable；The porous calcium carbonate suspension of formation is easy to apply in existing coating
In system, it is less prone to bad phenomenon.
The foregoing is merely presently filed embodiments, are not intended to limit the scope of the patents of the application, all to utilize this
Equivalent structure or equivalent flow shift made by application specification and accompanying drawing content, it is relevant to be applied directly or indirectly in other
Technical field similarly includes in the scope of patent protection of the application.
Claims (10)
1. a kind of preparation method of paper grade (stock) porous calcium carbonate, which is characterized in that the preparation method includes:
Calcium carbonate serosity is provided；
Modifying agent is added into the calcium carbonate serosity to be reacted to obtain porous calcium carbonate；Wherein the modifying agent is acid molten
Liquid.
2. the preparation method of paper grade (stock) porous calcium carbonate according to claim 1, which is characterized in that described to be starched to calcium carbonate
Modifying agent is added in liquid and react and includes:
Modifying agent is added dropwise into the calcium carbonate serosity several times.
3. the preparation method of paper grade (stock) porous calcium carbonate according to claim 1, which is characterized in that the modifying agent is 3
The hydrochloric acid of~6% concentration, the sulfuric acid of 3~6% concentration, the phosphoric acid of 8~11% concentration, the citric acid of 8~11% concentration, 8~
One or more of the ammonium chloride of 11% concentration.
4. the preparation method of paper grade (stock) porous calcium carbonate according to claim 1, which is characterized in that the modifying agent adds
Dosage is the 10~40% of the calcium carbonate absolute dry mass.
5. the preparation method of paper grade (stock) porous calcium carbonate according to claim 1, which is characterized in that described to be starched to calcium carbonate
Modifying agent is added in liquid to be reacted further include:
The reaction temperature of the modified-reaction is 30~60 DEG C.
6. the preparation method of paper grade (stock) porous calcium carbonate according to claim 1, which is characterized in that described to be starched to calcium carbonate
Before addition modifying agent is reacted in liquid further include:
Protective agent is added into the calcium carbonate serosity, the protective agent is alkaline solution.
7. the preparation method of paper grade (stock) porous calcium carbonate according to claim 6, which is characterized in that the protective agent is carbon
Sour hydrogen calcium solution, sodium bicarbonate solution, silicic acid calcium solution, sodium silicate solution, one or more of sodium oxalate solution.
8. the preparation method of paper grade (stock) porous calcium carbonate according to claim 1, which is characterized in that described to be starched to calcium carbonate
After addition modifying agent is reacted in liquid further include:
Reaction solution after reaction is ground to obtain porous calcium carbonate by grinder.
9. a kind of preparation method of coating paper, which is characterized in that the described method includes:
Coating is provided, wherein the coating includes porous calcium carbonate, the porous calcium carbonate is by adding into calcium carbonate serosity
Enter modifying agent and be modified what reaction obtained, the modifying agent is acid solution；
Body paper is provided, the coating is coated in at least one side of the body paper, coating paper is made.
10. the preparation method of coating paper according to claim 9, which is characterized in that the offer coating includes:
The coating includes 85~95 parts of porous calcium carbonate, 5~15 parts of styrene butadiene latices.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111302703A (en) * | 2020-03-30 | 2020-06-19 | 山东金泰恒盛新材料科技有限公司 | Stone synthetic paper with good printing adaptability |
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| CN1335874A (en) * | 1998-12-24 | 2002-02-13 | 普留斯-施陶费尔公司 | Novel treated paper fillers or pigments or minerals, especially pigments containing natural calcium carbonate, process for their manufacture and their composition and use |
| WO2004016720A2 (en) * | 2002-08-14 | 2004-02-26 | E.I. Du Pont De Nemours And Company | Coated polyunsaturated fatty acid-containing particles and coated liquid pharmaceutical-containing particles |
| CN1761723A (en) * | 2003-03-10 | 2006-04-19 | Omya发展股份公司 | Novel inorganic pigment containing calcium carbonate, aqueous suspension containing same, and uses thereof |
| CN101003958A (en) * | 2006-01-19 | 2007-07-25 | 王子制纸株式会社 | Porous filler and its preparation method, and porous filler pulp and paper |
| CN101626830A (en) * | 2007-03-21 | 2010-01-13 | Omya发展股份公司 | Surface-treated calcium carbonate and its use in wastewater treatment |
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- 2018-09-17 CN CN201811082715.0A patent/CN109235122A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1335874A (en) * | 1998-12-24 | 2002-02-13 | 普留斯-施陶费尔公司 | Novel treated paper fillers or pigments or minerals, especially pigments containing natural calcium carbonate, process for their manufacture and their composition and use |
| WO2004016720A2 (en) * | 2002-08-14 | 2004-02-26 | E.I. Du Pont De Nemours And Company | Coated polyunsaturated fatty acid-containing particles and coated liquid pharmaceutical-containing particles |
| CN1761723A (en) * | 2003-03-10 | 2006-04-19 | Omya发展股份公司 | Novel inorganic pigment containing calcium carbonate, aqueous suspension containing same, and uses thereof |
| CN101003958A (en) * | 2006-01-19 | 2007-07-25 | 王子制纸株式会社 | Porous filler and its preparation method, and porous filler pulp and paper |
| CN101626830A (en) * | 2007-03-21 | 2010-01-13 | Omya发展股份公司 | Surface-treated calcium carbonate and its use in wastewater treatment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111302703A (en) * | 2020-03-30 | 2020-06-19 | 山东金泰恒盛新材料科技有限公司 | Stone synthetic paper with good printing adaptability |
| CN111302703B (en) * | 2020-03-30 | 2022-02-11 | 山东金泰恒盛新材料科技有限公司 | Stone synthetic paper with good printing adaptability |
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Application publication date: 20190118 |