CN101260631B - Composite special type filler combination method - Google Patents
Composite special type filler combination method Download PDFInfo
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- CN101260631B CN101260631B CN2008100275206A CN200810027520A CN101260631B CN 101260631 B CN101260631 B CN 101260631B CN 2008100275206 A CN2008100275206 A CN 2008100275206A CN 200810027520 A CN200810027520 A CN 200810027520A CN 101260631 B CN101260631 B CN 101260631B
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Abstract
The invention discloses a complex method for compounding a special filling, comprising the following steps that: the special filling is dispersed into a dispersed suspending liquid with a mass concentration ranging from 1 to 30 percent, the dispersed suspending liquid is mixed with a macromolecule water solution with a mass concentration ranging from 1 to 25 percent to obtain a mixture, the mixture and an acidic electrolyte bath solution are mixed evenly, or a fatty acid is added into the mixture and is mixed evenly to obtain a solution, and then the solution and the acidic electrolyte bath solution are mixed evenly; after let stand, an upper layer of clear solution is eliminated, a lower layer of white substance is the special compounded filling. The complex method can improve the hydrophilicity of the special filling and the fiber, increases the use amount of the special filling and obviously improves the intensity of the paper. The complex method can improve the retention of the filling, increase the whiteness of the paper, reduces the waste water processing load and further saves the fiber use amount.
Description
Technical field
The invention belongs to the field of chemical synthesis, particularly be used for the complex method that paper making adds the special type filler of the process of filling out.
Background technology
The paper grade (stock) filler is generally white mineral pigment, because the distinctive morphological feature of these pigment, very high light scattering ability and absorbability are arranged, can improve the paper printability, improve opacity, increase smoothness, improve whiteness and save fiber as filler.Papermaking filler commonly used has talcum powder, calcium carbonate and china clay.Special type filler is that whiteness is very high, granularity is very thin, adds and fill out the class filler that effect is fine, price is very expensive, comprise calcined kaolin, silica, titanium dioxide and some polymer class fillers, owing to cost an arm and a leg, the amount that adds all seldom, generally be used in the low quantitative paper kind (as newsprint, cigarette paper and phone directory paper), these products are very strict to the requirement of whiteness, opacity and print through.
Paper plant directly adds filler in slurry now, because filler is a mineral matter, and lacks adhesion between fiber, needs to add retention agent, to reduce the loss of filler as far as possible.General filler is about 15% at the one way retention of long mesh paper making machine, plain boiled water repeatedly after the reuse retention also only reach about 40%, a large amount of fillers flow away with water, not only waste raw material, and also increase the water treatment load.Do not have adhesion between filler and the fiber simultaneously, can not add and fill out too much, fall a mao phenomenon, weakened paper intensity, reduced paper quality otherwise be easy to generate dry linting behind the one-tenth paper.Special type filler is because expensive and low consumption more need to increase retention.
Summary of the invention
In order to solve above-mentioned the deficiencies in the prior art part, the object of the present invention is to provide a kind of complex method of special type filler combination.This special type filler combination can increase filler and interfibrous affinity, increases filler retention, improves the paper tensile strength, increases amount of filler.
Purpose of the present invention is achieved through the following technical solutions: a kind of complex method of special type filler combination comprises the steps:
(1) special type filler being dispersed into mass concentration is 1～30% dispersion suspension liquid, with mass concentration be 1～20% macromolecule aqueous solution evenly after, obtain mixture, the mass ratio of the described special type filler and the macromolecule aqueous solution is 20: 1～1: 5;
(2) mixture that step (1) is obtained mixes with acidic electrolyte solution, described acidic electrolyte solution: the volume ratio of mixture is 1: 1～10: 1; Stir;
Perhaps in the mixture that step (1) obtains, add aliphatic acid, and mix and obtain solution, described aliphatic acid: the weight ratio of polymer substance is 5: 100～30: 100, above-mentioned then solution mixes with acidic electrolyte solution again, described acidic electrolyte solution: the liquor capacity ratio is 1: 1～10: 1, stirs;
After then the mixture after above-mentioned the stirring being left standstill, remove supernatant liquor, lower floor's white layer material promptly is special type filler combination.
Described special type filler comprises calcined kaolin, silica or titanium dioxide.
In order to realize the present invention better, the described macromolecule aqueous solution is the hydrophilic macromolecule aqueous solution, comprises the aqueous solution such as starch, oxidized starch, cationic starch, polyvinyl alcohol or shitosan.
Described acidic electrolyte solution comprises electrolyte solutions such as hydrochloric acid, sulfuric acid, nitric acid, sal-ammoniac, sulfate of ammoniac or nitric acid ammonia.
Described aliphatic acid is C
6～C
20Long chain acid is as caproic acid, palm oil, stearic acid, arachidic acid etc.
The time of described stirring is 30 minutes, and rotating speed is 200 rev/mins.
Described special type filler combination can directly substitute existing filler, can reduce the retention agent consumption, with bleached wood pulp (beating degree 45SR) the 60GSM handsheet of manufacturing paper with pulp, adds above-mentioned special type filler combination, and the paper tensile strength increases by 100%, filler retention raising 50%.
The principle of the invention is as follows: special type filler is a kind of mineral particle, and the surface does not have electrically, does not have substantially to interact with fiber.Special type filler is carried out surface treatment, coat the high water material of one deck hydrophily, increase and interfibrous affinity, improve filler retention.Simultaneously in dry run, the polymer substance layer of coating also can each other or and fiber between further combined with, increase the paper tensile strength.
The present invention has following advantage and beneficial effect with respect to prior art:
The present invention coats the hydrophilic macromolecule material on the special type filler surface, and the hydrophily of raising and fiber improves filler retention, increases into paper whiteness and tensile strength (the paper tensile strength increases by 10～200%), further saves fiber consumption.Special type filler is a mineral matter, and does not have adhesion between fiber; After coating one deck hydrophilic macromolecule material on the special type filler surface, have a large amount of hydroxyls on the polymer substance, in water, can produce a large amount of hydrogen bonds with the great amount of hydroxy group on the fiber, simultaneously after dry dehydration, hydrogen bonded is more solid, fiber and polymer substance are together with each other, form the network structure of throwing the net; And special type filler is included in polymer substance inside, realizes keeping of special type filler.Special type filler combination of the present invention can directly substitute corresponding special type filler, can reduce the retention agent consumption.
The specific embodiment
The present invention is described in further detail below in conjunction with embodiment, but embodiments of the present invention are not limited thereto.
Embodiment 1
(1) special type filler (titanium dioxide) being dispersed into mass concentration is 1% dispersion suspension liquid, with the mass concentration of abundant dissolving be after 1% the macromolecule aqueous solution (amidin) mixes, the mass ratio of special type filler and amidin is 20: 1, obtains mixture.
(2) said mixture is mixed with acidic electrolyte solution sulfuric acid; Acidic electrolyte solution sulfuric acid: the volume ratio of mixture is 5: 1, stirs 200 rev/mins of rotating speeds then 30 minutes, after leaving standstill a night, remove supernatant liquor, lower floor's white layer material promptly is special type filler combination, and the special type filler combination that obtains is a naked eyes visible particle shape.In the paper of 60 grammes per square metres, add the special type filler combination of the present invention (titanium dioxide) of 15% (mass percent), the paper whiteness increases by 30%, and tensile strength increases by 10%.
Embodiment 2
(1) special type filler (silica) being dispersed into mass concentration is 30% dispersion suspension liquid, with the mass concentration of abundant dissolving be after 10% the macromolecule aqueous solution (the oxidized starch aqueous solution) mixes, the mass ratio of the special type filler and the oxidized starch aqueous solution is 5: 1, obtains mixture.
(2) mixture mixes nitric acid ammonia with acidic electrolyte solution nitric acid ammonia solution then: the volume of mixture ratio is 1: 1, stirs, after leaving standstill then, remove supernatant liquor, lower floor's white layer material promptly is special type filler combination, and the special type filler combination that obtains is a naked eyes visible particle shape.In the paper of 60 grammes per square metres, add the special type filler combination of the present invention (silica) of 15% (mass percent), the paper whiteness increases by 20%, and tensile strength increases by 25%, and filler retention increases by 20%.
Embodiment 3
(1) special type filler (calcined kaolin) being dispersed into mass concentration is 25% dispersion suspension liquid, the mass concentration of pouring abundant dissolving into is 25% the macromolecule aqueous solution (chitosan aqueous solution), the mass ratio of special type filler and chitosan aqueous solution is 1: 5, after mixing, obtains mixture.
(2) said mixture is poured in the acidic electrolyte solution ammonium chloride solution, described sal-ammoniac: the volume of mixture ratio is 10: 1, the limit bevelling stirs and (stirred 30 minutes, 200 rev/mins of rotating speeds), after leaving standstill a night, remove supernatant liquor, lower floor's white layer material promptly is the special type filler combination filler, the special type filler combination naked eyes visible particle shape that obtains.In the paper of 60 grammes per square metres, add the special type filler combination of the present invention (calcined kaolin) of 15% (mass percent), the paper whiteness increases by 10%, and tensile strength increases by 150%.
Embodiment 4
(1) special type filler (titanium dioxide) being dispersed into mass concentration is 30% dispersion suspension liquid, the mass concentration of pouring abundant dissolving into is 10% the macromolecule aqueous solution (the cationic starch aqueous solution), the mass ratio of the special type filler and the cationic starch aqueous solution is 20: 1, after mixing, obtain mixture.
(2) said mixture is poured in the acidic electrolyte solution nitric acid, described nitric acid: the volume of mixture ratio is 3: 1, the limit bevelling stirs and (stirred 30 minutes, 200 rev/mins of rotating speeds), after leaving standstill a night, remove supernatant liquor, lower floor's white layer material promptly is special type filler combination, the special type filler combination naked eyes visible particle shape that obtains.In the paper of 60 grammes per square metres, add the special type filler combination of the present invention (titanium dioxide) of 15% (mass percent), the paper whiteness increases by 30%, and tensile strength increases by 15%.
Embodiment 5
(1) special type filler (silica) being dispersed into mass concentration is 30% dispersion suspension liquid, the mass concentration of pouring abundant dissolving into is 10% the macromolecule aqueous solution (amidin), the mass ratio of special type filler and amidin is 20: 1, after mixing, obtains mixture.
(2) in said mixture, add stearic acid (C
18Aliphatic acid), stearic acid: the weight ratio of starch is 5: 100, after mixing, mixture is poured in the acidic electrolyte solution hydrochloric acid, described hydrochloric acid: the volume of mixture ratio is 3: 1, the limit bevelling stirs and (stirred 30 minutes, 200 rev/mins of rotating speeds), leave standstill a night after, remove supernatant liquor, lower floor's white layer material promptly is special type filler combination, the special type filler combination naked eyes visible particle shape that obtains.In the paper of 60 grammes per square metres, add the special type filler combination of the present invention (silica) of 15% (mass percent), the paper whiteness increases by 30%, and tensile strength increases by 15%.
Embodiment 6
(1) special type filler (titanium dioxide) being dispersed into mass concentration is 30% dispersion suspension liquid, the mass concentration of pouring abundant dissolving into is 10% the macromolecule aqueous solution (amidin), the mass ratio of special type filler and amidin is 20: 1, after mixing, obtains mixture.
(2) said mixture is added palm oil (C
12Aliphatic acid) in, palm oil: the weight ratio of starch is 30: 100, after mixing, mixture is poured in the acidic electrolyte solution hydrochloric acid, hydrochloric acid: the volume of mixture ratio is 3: 1, the limit bevelling stirs and (stirred 30 minutes, 200 rev/mins of rotating speeds), leave standstill a night after, remove supernatant liquor, lower floor's white layer material promptly is special type filler combination, the special type filler combination naked eyes visible particle shape that obtains.In the paper of 60 grammes per square metres, add the special type filler combination of the present invention (titanium dioxide) of 15% (mass percent), the paper whiteness increases by 30%, and tensile strength increases by 15%.
Embodiment 7
(1) special type filler (silica) being dispersed into mass concentration is 30% dispersion suspension liquid, with the mass concentration of abundant dissolving be after 10% the macromolecule aqueous solution (the oxidized starch aqueous solution) mixes, the mass ratio of the special type filler and the oxidized starch aqueous solution is 5: 1, obtains mixture.
(2) in the mixture that step (1) obtains, add caproic acid (C
6And mix and obtain solution, caproic acid aliphatic acid): the weight ratio of oxidized starch is 1: 10, and above-mentioned then solution mixes sulfuric acid with acidic electrolyte solution sulfuric acid again: the liquor capacity ratio is 10: 1, stirs; After liquid after stirring leaves standstill, remove supernatant liquor, lower floor's white layer material promptly is special type filler combination, the special type filler combination naked eyes visible particle shape that obtains.In the paper of 60 grammes per square metres, add the special type filler combination of the present invention (silica) of 15% (mass percent), the paper whiteness increases by 30%, and tensile strength increases by 15%.
Embodiment 8
(1) special type filler (calcined kaolin) being dispersed into mass concentration is 1% dispersion suspension liquid, with the mass concentration of abundant dissolving be after 1% the macromolecule aqueous solution (amidin) mixes, the mass ratio of special type filler and amidin is 20: 1, obtains mixture.
(2) in the mixture that step (1) obtains, add arachidic acid (C
20And mix and obtain solution, arachidic acid aliphatic acid): the weight ratio of starch is 2: 10, and above-mentioned then solution mixes sulfate of ammoniac with the acidic electrolyte solution sulfate of ammoniac again: the liquor capacity ratio is 1: 1, stirs; After liquid after stirring leaves standstill, remove supernatant liquor, lower floor's white layer material promptly is special type filler combination.The special type filler combination naked eyes visible particle shape that obtains.In the paper of 60 grammes per square metres, add the special type filler combination of the present invention (calcined kaolin) of 15% (mass percent), the paper whiteness increases by 30%, and tensile strength increases by 15%.
The foregoing description is a preferred implementation of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under spiritual essence of the present invention and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (7)
1. the complex method of a special type filler combination is characterized in that comprising the steps:
(1) special type filler being dispersed into mass concentration is 1～30% dispersion suspension liquid, with mass concentration be 1～25% hydrophilic macromolecule aqueous solution evenly after, obtain mixture, the mass ratio of the described special type filler and the hydrophilic macromolecule aqueous solution is 20: 1～1: 5;
(2) mixture that step (1) is obtained mixes with acidic electrolyte solution, described acidic electrolyte solution: the volume ratio of mixture is 1: 1～10: 1; Stir;
Perhaps in the mixture that step (1) obtains, add aliphatic acid, and mix and obtain solution, described aliphatic acid: the weight ratio of polymer substance is 5: 100～30: 100, above-mentioned then solution mixes with acidic electrolyte solution again, described acidic electrolyte solution: the liquor capacity ratio is 1: 1～10: 1, stirs;
After then the mixture after above-mentioned the stirring being left standstill, remove supernatant liquor, lower floor's white layer material promptly is special type filler combination;
Described special type filler is calcined kaolin, silica or titanium dioxide.
2. the complex method of a kind of special type filler combination according to claim 1, it is characterized in that: the described hydrophilic macromolecule aqueous solution is amidin, polyvinyl alcohol water solution or chitosan aqueous solution.
3. the complex method of a kind of special type filler combination according to claim 2, it is characterized in that: described amidin is the oxidized starch aqueous solution or the cationic starch aqueous solution.
4. the complex method of a kind of special type filler combination according to claim 1, it is characterized in that: described acidic electrolyte solution comprises hydrochloric acid, sulfuric acid, nitric acid, ammonium chloride solution, ammonium sulfate or ammonium nitrate solution.
5. the complex method of a kind of special type filler combination according to claim 1, it is characterized in that: described aliphatic acid is C
6～C
20Long chain acid.
6. the complex method of a kind of special type filler combination according to claim 5, it is characterized in that: described aliphatic acid is caproic acid, stearic acid or arachidic acid.
7. the complex method of a kind of special type filler combination according to claim 1, it is characterized in that: the time of described stirring is 30 minutes, rotating speed is 200 rev/mins.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100275206A CN101260631B (en) | 2008-04-18 | 2008-04-18 | Composite special type filler combination method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100275206A CN101260631B (en) | 2008-04-18 | 2008-04-18 | Composite special type filler combination method |
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| Publication Number | Publication Date |
|---|---|
| CN101260631A CN101260631A (en) | 2008-09-10 |
| CN101260631B true CN101260631B (en) | 2010-10-06 |
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| CN2008100275206A Expired - Fee Related CN101260631B (en) | 2008-04-18 | 2008-04-18 | Composite special type filler combination method |
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| CN104195878B (en) * | 2014-08-06 | 2016-08-24 | 华南理工大学 | A kind of improve the method for starch utilization ratio in modified filler |
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Granted publication date: 20101006 Termination date: 20120418 |