CN103388281A - Modification filling material and preparation method thereof, and slurry adopting modification filling material - Google Patents
Modification filling material and preparation method thereof, and slurry adopting modification filling material Download PDFInfo
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- CN103388281A CN103388281A CN201210140704XA CN201210140704A CN103388281A CN 103388281 A CN103388281 A CN 103388281A CN 201210140704X A CN201210140704X A CN 201210140704XA CN 201210140704 A CN201210140704 A CN 201210140704A CN 103388281 A CN103388281 A CN 103388281A
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Abstract
The invention provides a modification filling material used in the field of papermaking. The modification filling material comprises a filling material main agent which is one or more selected from diatomite, zeolite, bentonite, talc, calcium carbonate, kaolin, silk cristobalite, natural calcium metasilicate, gypsum, barite, and pyrophyllite. The modification filling material also comprises carboxymethyl cellulose, a charge neutralizing agent, and a coagulation agent. The mass of the carboxymethyl cellulose is 0.5-1% of a filling material main agent absolute mass, the mass of the charge neutralizing agent is 0.2-0.4% of the filling material main agent absolute mass, and with the addition amount of the coagulation agent, the filling material is coagulated into a coagulated filling material with a particle size of 20-80mum. The invention also provides a preparation method of the modification filling material, and a slurry adopting the modification filling material. When the modification filling material is applied in the slurry, prepared paper has good performances, and cost can be saved.
Description
Technical field
The present invention relates to modified filler of a kind of field of papermaking use and preparation method thereof, and the slurry of this modified filler of application.
Background technology
In paper industry, add inorganic filler and can not only significantly promote whiteness, opacity and the smoothness of the paper of manufacturing paper with pulp in slurry, can also improve the water filtering performance of slurry in the paper machine is manufactured paper with pulp process, reduce the thermal energy consumption of paper in dry run.Inorganic filler is than pulp fiber low price not only in addition, and has lower carbon emission amount.Yet a little less than the adhesion between filler and pulp fiber, the interpolation of filler can cause the decline of paper strength.
At present, both at home and abroad papermaking enterprise etc. all adds at the height of competitively studying filler the technology of filling out.Cell lumen loading technology as North America, its principle is: carbon dioxide is passed in the slurry that contains saturated aqua calcis, carbon dioxide and calcium hydroxide molecule can enter lumen by the cinclides of fiber, make the water-fast precipitation of calcium carbonate of generation in the fiber finer cell.Yet present technique need be invested a large amount of equipment and carried out, and the filler that really can be deposited in lumen is less.Domestic enterprise carries out the research of starch parcel packing technique, but a large amount of uses of starch can make paper become fragile, and show as paper tear decline.
Summary of the invention
In view of this, be necessary to provide a kind of modified filler that effectively addresses the above problem.
In addition, also be necessary to provide a kind of preparation method of above-mentioned modified filler.
In addition, also be necessary to provide a kind of slurry of applying above-mentioned modified filler.
a kind of modified filler, it contains filler host, this filler host is diatomite, zeolite, bentonite, talcum, calcium carbonate, kaolin, Juanyingshi, natural calcium metasilicate, gypsum, barite, one or more in pyrophyllite, this modified filler also contains carboxymethyl cellulose, charging neutrality agent and flocculant, the quality of this carboxymethyl cellulose is the 0.5%-1% of filler host over dry quality, the quality of this charging neutrality agent is the 0.2%-0.4% of filler host over dry quality, the addition of this flocculant is modified filler is wadded a quilt with cotton to be polymerized to as particle diameter the wadding that is 20-80 μ m to gather the shape filler.
A kind of slurry of applying described modified filler, the over dry quality of this modified filler is the 4%-30% of slurry over dry quality.
A kind of preparation method of modified filler, it comprises the steps:
Get filler host and add water and be mixed with the filler turbid liquid, this filler host is one or more in diatomite, zeolite, bentonite, talcum, calcium carbonate, kaolin, Juanyingshi, natural calcium metasilicate, gypsum, barite, pyrophyllite;
Be the carboxymethyl cellulose of the 0.5%-1% of filler host over dry quality to adding the over dry quality in the filler turbid liquid, and mix;
Be the charging neutrality agent of the 0.2%-0.4% of filler host over dry quality to adding quality in the filler turbid liquid;
Add flocculant in the filler turbid liquid, described filler wadding is gathered make described modified filler, the addition of this flocculant is modified filler is wadded a quilt with cotton to be polymerized to as particle diameter the wadding that is 20-80 μ m to gather the shape filler.
modified filler of the present invention uses carboxymethyl cellulose to mix with filler host, and add the negative electrical charge of the above-mentioned mixed fillers of charging neutrality agent neutralization, use finally the flocculant of macromolecular chain to make the filler wadding poly-, this modified filler is made an addition in paper making pulp, can effectively reduce the papermaking cost, be lifted at reservation and the drainage of paper machine in manufacturing paper with pulp, improve paper machine water system cleannes, and the modified filler specific area reduces, increased interfibrous adhesion, the high molecular crane span structure effect in top layer has strengthened the adhesion of modified filler and fiber, therefore can significantly promote the intensity of paper.
The specific embodiment
A kind of modified filler, it comprises filler host, carboxymethyl cellulose, charging neutrality agent, flocculant and water.The quality of this carboxymethyl cellulose is the 0.5%-1% of filler host over dry quality.The quality of this charging neutrality agent is the 0.2%-0.4% of filler host over dry quality.
This filler host is one or more in diatomite, zeolite, bentonite, talcum, calcium carbonate, kaolin, Juanyingshi, natural calcium metasilicate, gypsum, barite, pyrophyllite.
The low defect of paper strength that this carboxymethyl cellulose causes in order to make up filler, promote paper strength.
This flocculant is a kind of in amphiprotic polyacrylamide, polyamide-epoxy chloropropane resin, amphoteric starch, cationic starch.This flocculant, in order to filler is wrapped up, adheres to, makes filler form the poly-shape filler of wadding, thereby the abrasion of filler is significantly reduced.The flocculant of Different adding amount, can make the poly-particle diameter of modified filler wadding different, and the better addition of flocculant of the present invention is modified filler is wadded a quilt with cotton to be polymerized to as grain diameter the wadding that is 20-80 μ m to gather the shape filler.The suitable increase of packing material size can reduce the specific area of its filler, thereby increases interfibrous adhesion, can cause that local bond strength is too low but packing material size is excessive, thereby affect paper quality, therefore should control packing material size.(model: LA-300) detector detects particle diameter and controls in the wadding collecting process can to use HORIBA to the control of grain diameter herein.
The poly-increase that can cause packing material size of filler wadding, and the suitable increase of particle diameter can reduce the specific area of filler, thus increase and interfibrous adhesion.Modified filler Surface mulch in the present invention or be stained with polymer substance, this material also is easy to and the fiber combination, therefore plays the crane span structure effect and improves the adhesion of filler and fiber, lifting paper strength.
Because the electric charge negativity of filler after carboxymethyl cellulose and the mixing of filler host is higher, the too high performance that affects the flocculant effect of electronegativity, cause filler to be difficult for occurring wadding and gather.By add the charging neutrality agent can be effectively in and the negative electrical charge of modified filler, even increase the positive electricity amount of modified filler.
This charging neutrality agent is the higher inorganic or organic matter of positive electricity density, specifically can be aluminium polychloride (Polyaluminium Chloride, PAC) or PEI (poly-1,2-ethylenimine), and is preferably PAC.
A kind of slurry of applying described modified filler, this cost of sizing agent is cheap, and the paper strength of manufacturing paper with pulp is high.Modified filler can directly add in slurry and join and copy, the addition of modified filler can be according to the condition of manufacturing paper with pulp of reality, consumption as wet end furnish, reinforcing aids is determined, if slurry quality is better, control higher modified filler addition, as the over dry quality of the modified filler that adds is 30% left and right of slurry over dry quality; If slurry quality is poor, can reduce the addition of modified filler, the over dry quality of controlling the modified filler that adds is the 4%-10% of slurry over dry quality.Integral body, the over dry quality of the modified filler that adds is the 4%-30% of slurry over dry quality.
modified filler of the present invention uses carboxymethyl cellulose to mix with filler host, and add the negative electrical charge of the above-mentioned mixed fillers of charging neutrality agent neutralization, use finally the flocculant of macromolecular chain to make the filler wadding poly-, this modified filler is made an addition in paper making pulp, can effectively reduce the papermaking cost, be lifted at reservation and the drainage of paper machine in manufacturing paper with pulp, improve paper machine water system cleannes, and the modified filler specific area reduces, increased interfibrous adhesion, the high molecular crane span structure effect in top layer has strengthened the adhesion of modified filler and fiber, therefore can significantly promote the intensity of paper.
The preparation method of this modified filler, it comprises the steps:
(1) configuration filler turbid liquid.
Getting a certain amount of filler host adds water and is mixed with the filler turbid liquid that mass percentage concentration is 15%-60%.This filler host is one or more in diatomite, zeolite, bentonite, talcum, calcium carbonate, kaolin, Juanyingshi, natural calcium metasilicate, gypsum, barite, pyrophyllite.
(2) add carboxymethyl cellulose.
Be the carboxymethyl cellulose of the 0.5%-1% of filler host over dry quality to adding the over dry quality in above-mentioned filler turbid liquid, and mix.This carboxymethyl cellulose preferably adds in the mode of solution.
(3) add the charging neutrality agent.
Be the charging neutrality agent of the 0.2%-0.4% of filler host over dry quality to adding quality in above-mentioned filler turbid liquid, and mix.Preferably at 300-1000, turn/add described charging neutrality agent under the stirring of min.This charging neutrality agent is the higher inorganic or organic matter of positive electricity density, specifically can be PAC or PEI.
(4) add flocculant.
Add flocculant in above-mentioned filler turbid liquid, it is the poly-shape filler of wadding of 20 μ m-80 μ m that described filler wadding is polymerized to as particle diameter, mixes, and makes described modified filler.This flocculant is a kind of in amphiprotic polyacrylamide, polyamide-epoxy chloropropane resin, amphoteric starch, cationic starch.This flocculant preferably adds in the mode of solution.
Below by embodiment, the present invention is specifically described.
Embodiment 1
Prepare modified filler: get the scattered 100g over dry that contains and grind the turbid liquid of GCC, the mass percentage concentration of this turbid liquid is 18%, adding mass percentage concentration is 1% cmc soln 50g, fully stir and make it to be uniformly dispersed, add wherein 0.2gPAC under stirring, after stirring 10min, adding mass percentage concentration is 0.5% amphiprotic polyacrylamide solution 10g again, stir 20min, the particle diameter that makes modified filler is 35-40 μ m.
Prepare slurry: get needlebush bleached kraft pulp (freedom is 380ml), leaf wood bleached kraft pulp (freedom is 400ml) and Alkaline Peroxide Mechanical Pulp (freedom is 250ml) and mix and make mixed slurry in the ratio of 20%:60%:20%, the mass percentage concentration of mixed slurry is 1%.Get the 2000g mixed slurry, add above-mentioned modified filler 39.5g under stirring, behind 10 seconds, interval, adding mass percentage concentration is 0.1% cationic polyacrylamide retention agent 5g, behind 10 seconds, interval, adding mass percentage concentration is 1% silicon dioxde solution 5g, stirs after 10 seconds, carries out drainage detection and handsheet and detects the intensity of handsheet.
Embodiment 2
Prepare modified filler: get the scattered 100g over dry that contains and grind the turbid liquid of GCC, the mass percentage concentration of this turbid liquid is 18%, adding mass percentage concentration is 1% cmc soln 100g, fully stir and make it to be uniformly dispersed, add wherein 0.4gPAC under stirring, after stirring 10min, adding mass percentage concentration is 10% polyamide-epoxy chloropropane resin solution 5g again, stir 20min, the particle diameter that makes modified filler is 20-25 μ m.
Prepare slurry: with reference to the preparation of the method in embodiment 1, the quality of wherein adding by embodiment 2 prepared modified fillers is 39.7g.
Embodiment 3
Prepare modified filler: get the scattered 100g over dry that contains and grind the turbid liquid of GCC, the mass percentage concentration of this turbid liquid is 18%, adding mass percentage concentration is 1% cmc soln 75g, fully stir and make it to be uniformly dispersed, add wherein 0.3gPAC under stirring, after stirring 10min, adding mass percentage concentration is 3% half slaking amphiprotic starch solution 66.7g again, stir 20min, the particle diameter that makes modified filler is 70-80 μ m.
Prepare slurry: with reference to the preparation of the method in embodiment 1, the quality of wherein adding by embodiment 3 prepared modified fillers is 42g.
Comparative Examples
Prepare slurry: get needlebush bleached kraft pulp (freedom is 380ml), leaf wood bleached kraft pulp (freedom is 400ml) and Alkaline Peroxide Mechanical Pulp (freedom is 250ml) and mix in the ratio of 20%:60%:20%, the mass percentage concentration of mixed slurry is 1%.Get the 2000g mixed slurry, add filler GCC33.3g under stirring, behind 10 seconds, interval, adding mass percentage concentration is 0.1% cationic polyacrylamide retention agent 5g, behind 10 seconds, interval, adding mass percentage concentration is 1% silicon dioxde solution 5g, stirs after 10 seconds, carry out drainage detection and handsheet and detect the intensity of handsheet, concrete test result is as shown in the table.
| Project | Comparative Examples | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Cohesive force kgcm | 1.56 | 2.08 | 2.04 | 2.11 |
| Burst index kPam 2/g | 2.2 | 2.5 | 2.8 | 2.7 |
| Tear index mNm 2/g | 6.8 | 7.4 | 7.2 | 7.3 |
| Tensile index Nm/g | 38.5 | 42.8 | 45.9 | 48.3 |
| 10s drainage ml | 360 | 365 | 365 | 370 |
| Ash content % | 16.1 | 16.2 | 16.0 | 16.2 |
As seen from table:, compared to conventional fillers (Comparative Examples), make an addition in slurry with embodiment 1,2 and 3 prepared modified fillers the paper that forms of manufacturing paper with pulp and have better mechanical property, higher intensity.
In addition, those skilled in the art also can make various modifications, interpolation and the replacement on other form and details in the claims in the present invention scope of disclosure and spirit.Certainly, the variations such as various modifications, interpolation and replacement that these are made according to spirit of the present invention, within all should being included in the present invention's scope required for protection.
Claims (8)
1. modified filler, it contains filler host, this filler host is diatomite, zeolite, bentonite, talcum, calcium carbonate, kaolin, Juanyingshi, natural calcium metasilicate, gypsum, barite, one or more in pyrophyllite, it is characterized in that: this modified filler also contains carboxymethyl cellulose, charging neutrality agent and flocculant, the quality of this carboxymethyl cellulose is the 0.5%-1% of filler host over dry quality, the quality of this charging neutrality agent is the 0.2%-0.4% of filler host over dry quality, the addition of this flocculant is modified filler is wadded a quilt with cotton to be polymerized to as particle diameter the wadding that is 20-80 μ m to gather the shape filler.
2. modified filler as claimed in claim 1 is characterized in that: this charging neutrality agent is aluminium polychloride or poly-1,2-ethylenimine.
3. modified filler as claimed in claim 1 is characterized in that: this flocculant is a kind of in amphiprotic polyacrylamide, polyamide-epoxy chloropropane resin, amphoteric starch, cationic starch.
4. an application rights requires the slurry of the described modified filler of any one in 1-3, and the over dry quality of this modified filler is the 4%-30% of slurry over dry quality.
5. the preparation method of a modified filler, it comprises the steps:
Get filler host and add water and be mixed with the filler turbid liquid, this filler host is one or more in diatomite, zeolite, bentonite, talcum, calcium carbonate, kaolin, Juanyingshi, natural calcium metasilicate, gypsum, barite, pyrophyllite;
Be the carboxymethyl cellulose of the 0.5%-1% of filler host over dry quality to adding the over dry quality in the filler turbid liquid, and mix;
Be the charging neutrality agent of the 0.2%-0.4% of filler host over dry quality to adding quality in the filler turbid liquid;
Add flocculant in the filler turbid liquid, described filler wadding is gathered make described modified filler, the addition of this flocculant is modified filler is wadded a quilt with cotton to be polymerized to as particle diameter the wadding that is 20-80 μ m to gather the shape filler.
6. the preparation method of modified filler as claimed in claim 5 is characterized in that: in the step of preparation filler turbid liquid, the mass percentage concentration of filler turbid liquid is 15%-60%.
7. the preparation method of modified filler as claimed in claim 5 is characterized in that: this charging neutrality agent is aluminium polychloride or poly-1,2-ethylenimine.
8. the preparation method of modified filler as claimed in claim 5 is characterized in that: this flocculant is a kind of in amphiprotic polyacrylamide, polyamide-epoxy chloropropane resin, amphoteric starch, cationic starch.
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| CN201210140704.XA CN103388281B (en) | 2012-05-08 | 2012-05-08 | Modified filler and preparation method thereof, applies the slurry of this modified filler |
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| CN201210140704.XA CN103388281B (en) | 2012-05-08 | 2012-05-08 | Modified filler and preparation method thereof, applies the slurry of this modified filler |
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Cited By (6)
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| CN105602289A (en) * | 2016-02-24 | 2016-05-25 | 湖南磊鑫新材料科技有限公司 | Modified heavy calcium carbonate special for paint and preparation method and device thereof |
| CN105986513A (en) * | 2015-02-06 | 2016-10-05 | 石轩 | Functional filling material auxiliary agent used for papermaking field |
| CN106120441A (en) * | 2016-06-20 | 2016-11-16 | 广州聚注专利研发有限公司 | A kind of modified calcium silicates papermaking filler and preparation method thereof |
| CN106149459A (en) * | 2015-03-31 | 2016-11-23 | 上海东升新材料有限公司 | A kind of paper grade (stock) height retains filler and preparation method thereof |
| CN109577076A (en) * | 2018-12-26 | 2019-04-05 | 江苏理文造纸有限公司 | A kind of filler and preparation method thereof for liner board |
| CN109667193A (en) * | 2019-01-28 | 2019-04-23 | 常州麒通国际贸易有限公司 | A kind of preparation method of composite papermaking retention agent |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105986513A (en) * | 2015-02-06 | 2016-10-05 | 石轩 | Functional filling material auxiliary agent used for papermaking field |
| CN105986513B (en) * | 2015-02-06 | 2017-10-27 | 石轩 | A kind of functional filler auxiliary agent for field of papermaking |
| CN106149459A (en) * | 2015-03-31 | 2016-11-23 | 上海东升新材料有限公司 | A kind of paper grade (stock) height retains filler and preparation method thereof |
| CN105602289A (en) * | 2016-02-24 | 2016-05-25 | 湖南磊鑫新材料科技有限公司 | Modified heavy calcium carbonate special for paint and preparation method and device thereof |
| CN106120441A (en) * | 2016-06-20 | 2016-11-16 | 广州聚注专利研发有限公司 | A kind of modified calcium silicates papermaking filler and preparation method thereof |
| CN106120441B (en) * | 2016-06-20 | 2018-09-18 | 广州聚注通用技术研究院有限公司 | A kind of modified calcium silicates papermaking filler and preparation method thereof |
| CN109577076A (en) * | 2018-12-26 | 2019-04-05 | 江苏理文造纸有限公司 | A kind of filler and preparation method thereof for liner board |
| CN109667193A (en) * | 2019-01-28 | 2019-04-23 | 常州麒通国际贸易有限公司 | A kind of preparation method of composite papermaking retention agent |
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