CN104894915A - Papermaking adhesive control agent, and preparation method and application of control agent - Google Patents
Papermaking adhesive control agent, and preparation method and application of control agent Download PDFInfo
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- CN104894915A CN104894915A CN201510257894.7A CN201510257894A CN104894915A CN 104894915 A CN104894915 A CN 104894915A CN 201510257894 A CN201510257894 A CN 201510257894A CN 104894915 A CN104894915 A CN 104894915A
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Abstract
The invention provides a papermaking adhesive control agent, and a preparation method and an application of the control agent. The papermaking adhesive control agent comprises the following components, by weight part: 70-100 of calcium silicate powder, 0-30 of flaky talcum powder, 0-5 parts of bentonite, and 0.005-0.015 part of cation polyacrylamide, wherein calcium silicate powder is prepared through pulverizing calcium silicate, and the calcium silicate includes calcium silicate nanosheets. The control agent can effectively reduce an effect of an adhesive on a paper machine during a papermaking process, prolongs the cleaning period of the paper machine, overcomes manufacturing obstacles in a manufacturing process, and greatly improve the papermaking efficiency.
Description
Technical field
The present invention relates to a kind of papermaking stickies control agent and its preparation method and application, belong to field of papermaking.
Background technology
Along with the surge of secondary stock, high yield pulp in paper industry and the reuse of coated broke, sicker problem on obstacle is day by day serious, and sicker is mainly derived from ink in secondary stock, latex, wax, resin and other stickums etc.Sicker can cause serious harm to pulping and paper-making, the production efficiency caused as the deposition of sicker on the production equipments such as pipeline, storage tank, screen cloth and adhesion declines, and deposits at the goo that paper making process produces the problem such as obstacle and paper product Quality Down of manufacturing paper with pulp caused.
In order to reduce the harm that sicker is produced pulping and paper-making, when adopting chemical Treatment sicker, except the biology enzyme stickies control agent of high cost, the treatment measures that papermaking enterprise is taked control viscose glue thing by adding talcum powder in paper-making process, wherein the most representative with the modified talc powder stickies control agent of French Luzenac Company, by the lipophilic group on talcum powder surface, viscose glue thing is adsorbed, but talcum powder stickies control agent with high-quality Talc Ore for raw material, and domestic Talc Ore inferior quality, many from external import, high cost.Notification number be CN203855855U patent discloses a kind of device removing papermaking viscose glue thing, by arranging pressurized screen, magnetic treatment pond, kinetic pump, sedimentation basin.Adsorption treatment is carried out to the viscose glue thing in paper-making process, though this device has certain effect in paper-making process, but the complicated and high cost of handling procedure.
Summary of the invention
The invention provides a kind of papermaking stickies control agent and its preparation method and application, processing that viscose glue thing cost is high, operating procedure is complicated and by defect not good for viscose glue thing treatment effect for solving in prior art.
The invention provides a kind of papermaking stickies control agent, comprise following component according to weight portion: 70 ~ 100 parts, calcium silicates powder, platy talc 0 ~ 30 part, bentonite 0 ~ 5 part and cationic-type polyacrylamide 0.005 ~ 0.015 part; Wherein, described calcium silicates powder obtains by carrying out pulverizing to calcium silicates, and described calcium silicates comprises calcium silicates nanometer sheet.
Main functional component in papermaking stickies control agent of the present invention is calcium silicates powder and cationic-type polyacrylamide, and wherein, calcium silicates powder is key function composition, and molecular formula is CaOSiO
2nH
2o, it can adsorb a large amount of sicker, then by the sedimentation in follow-up paper technology, filter operation, realizes being separated of viscose glue thing and paper making equipment fast.
Calcium silicates powder in controlling agent of the present invention pulverizes obtained by carrying out processing to calcium silicates, can adopt the disintegrating apparatus such as gas flow sizing machine.Simultaneously, calcium silicates of the present invention comprises calcium silicates nanometer sheet, by the porous aggregates of calcium silicates nanometer sheet lack of alignment, there are highly active atom and dangling bonds in edge due to each calcium silicates nanometer sheet, electrochemical properties enlivens, calcium silicates nanometer sheet material is one by one made to splice and combine arrangement by nanometer sheet edge is mutually unordered, form the calcium silicates of mushy cellular aggregation, through microscope and transmission electron microscope observing, the many aggregations being polymerized to 20 ~ 35 μm by several calcium silicates nanometer sheet lack of alignment of cellular aggregation, finally these contain a large amount of hole, multiple calcium silicates nanometer sheet aggregations that edge electric chemical characteristic is enlivened can adsorb sicker.Simultaneously, research shows, the calcium silicates nanometer sheet electro-chemical activity of thick 5 ~ 10nm, wide 100 ~ 500nm is high, significantly can strengthen the lipophilic performance of calcium silicates nanometer sheet, thus enough effectively adsorb the goos such as the medium oil colloidal resin of paper manufacturing systems, reduce goo surface energy, make it lose peculiar viscosity, thus suppress the coalescent of stickies and deposition.
On the other hand, due to the mostly aobvious elecrtonegativity of sicker, in this controlling agent, add a small amount of cationic-type polyacrylamide electrically to adsorb aobvious electronegative sicker, and select this cationic-type polyacrylamide to be formulated as concentration be 0.1 ~ 0.5% the aqueous solution spray in porous calcium silicate, owing to containing the crystallization water in porous calcium silicate, in weak elecrtonegativity, therefore cationic polyacrylamide can better be attached on calcium silicates in form of an aqueous solutions, the part sicker electrically adsorbed eventually through cationic polyacrylamide is also attached on calcium silicates.
In papermaking viscose glue thing controlling agent of the present invention, platy talc and bentonite can also be added.The class tetrahedral structure SiO on platy talc surface
2have stronger oil-wet behavior, it can adhere to the medium oil sicker of paper manufacturing systems.Bentonite is a kind of based on the natural clay rock of montmorillonite mineral composition, and theoretical construct formula is (1/2Ca, Na)
0.7(Al, Mg, Fe)
4(Si, Al)
8o
20(OH)
4nH
2o, Ca, Na are wherein tradable CATION, and it is strong adsorptivity and aliovalent isomorphous replacement to CATION and polar molecule, therefore can realize the control of papermaking goo by bentonitic strong adsorptivity and cation exchange property.On the basis of calcium silicates powder and cationic-type polyacrylamide two kinds of main functional component, talcum powder and the bentonitic sicker that can reduce further in papermaking systems that adds.Wherein, platy talc can also adopt talcum component to be greater than the high-quality strip talcum powder of 90%.
Papermaking stickies control agent of the present invention, calcium silicates powder after being pulverized by the calcium silicates with calcium silicates nanometer sheet and cationic-type polyacrylamide are mixed to form, hole absorption and lipophilic absorption can be carried out by calcium silicate powder foot couple sicker, by cationic-type polyacrylamide sicker electrically adsorbed and final with calcium silicates powder for carrier deposits, carry out effectively controlling to the sicker in paper-making process, extend the cleaning frequency of paper machine, decrease the obstacle of manufacturing paper with pulp in the process of manufacturing paper with pulp, improve papermaking efficiency.Simultaneously in order to further strengthen the control of sicker, platy talc and bentonite can also be added.
Further, the granularity of described calcium silicates powder is 800 ~ 1250 orders.Concrete, by calcium silicates by grinding through carrying out pulverizing with the airflow milling of grader, and to obtain granularity by grader classification be 800 ~ 1250 object superfines, this granularity can make papermaking stickies control agent of the present invention have rational specific area, thus contributes to the controlling to papermaking viscose glue thing improving papermaking stickies control agent of the present invention further.
Further, in order to make controlling agent of the present invention play best stickies control effect, described calcium silicates can preferably select average grain diameter to be 20 ~ 35 μm, specific area>=150m
2/ g, oil factor>=100.0g/100g, porosity of=0.5cm
3the calcium silicate material of/g.When calcium silicates meets above-mentioned parameter, its oil factor >=100.0g/100g after testing, thus better to the control effects of sicker.
Further, described calcium silicates reacts obtained by flyash desiliconization liquid and milk of lime; The ratio wherein controlling the amount of substance of silico-calcium in reactant is 1:1 ~ 1.2, and reaction temperature is 80 ~ 100 DEG C, and rotating speed is 300 ~ 1000r/min.Specifically in preparation process, the calcium silicates with nanometer sheet used can from from any approach, but the present invention is from environmental protection and energy saving angle, the calcium silicates used is the product that flyash desiliconization liquid and milk of lime react, flyash desiliconization liquid is the discarded object from power plant, through the reaction with milk of lime, become the raw material that can be used for stickies control agent.In order to obtain the calcium silicates comprising calcium silicates nanometer sheet, in concrete preparation process, by controlling the source of the raw material in reaction, material than, reaction temperature and speed of agitator, finally can obtain the calcium silicates comprising calcium silicates nanometer sheet, and this reaction condition can obtain the calcium silicates nanometer sheet of thick 5 ~ 10nm, wide 100 ~ 500nm.Wherein, the material of raw material is than the SiO referred in flyash desiliconization liquid
2and the silico-calcium between the CaO in milk of lime is than counting, the ratio of the amount of substance of both control is 1:1 ~ 1.2.
Further, the molecular weight of described cationic-type polyacrylamide is 500 ~ 1,200 ten thousand units.The cationic-type polyacrylamide of this condition contributes to papermaking stickies control agent and in use forms the uniform aqueous solution, thus better carry out cation-modified to calcium silicates powder, effective attachment and absorption sicker, promote the clearance of harmful viscose glue thing in paper making pulp system.
Further, described bentonitic particle diameter≤500nm.This condition contribute to the trapping of sicker and fiber fines with keep, thus play purification plain boiled water and improve the effect of production run.
Further, the specific area of described papermaking stickies control agent is 170 ~ 350m
2/ g, oil factor>=130.0g/100g, average grain diameter < 5.0 μm, maximum particle diameter < 15 μm, zeta potential value is 10mv ~ 30mv.To in the adsorption process of sicker, specific area is vital controling parameters.Specific area its adsorption efficiency larger is higher, if but the specific area of controlling agent is excessive, its porosity can decline, also can decline to the adsorptivity of sicker thereupon, therefore the specific area of controlling agent of the present invention can effectively realize within the scope of this to sicker hole absorption, also can effectively realize adsorbing the lipophilicity of sicker.Meanwhile, in the present invention, the zeta value being attached with the aqueous solution of the stickies control agent of the calcium silicates powder of cationic-type polyacrylamide is 10mv ~ 30mv, and this current potential can the sicker impurity of effective adsorbs electronegative.
The present invention also provides a kind of preparation method of above-mentioned arbitrary described papermaking stickies control agent, comprises the steps:
1) calcium silicates is pulverized, obtained described calcium silicates powder;
2) by mass percentage be the cationic-type polyacrylamide spray solution of 0.1 ~ 0.5% on the raw material comprising 70 ~ 100 weight portion calcium silicates powder, 0 ~ 30 weight portion platy talc and 0 ~ 5 parts by weight of bentonite, obtained papermaking stickies control agent;
The weight portion of described papermaking stickies control agent cationic polyacrylamide is 0.005 ~ 0.015 part.
Controlling agent of the present invention can direct packaging applications after above-mentioned steps.
Further, also comprise and carry out granulation to described papermaking stickies control agent, obtained diameter is the spherical papermaking stickies control agent particle of 8 ~ 10mm.Its prilling process is by granulation in the powder conveying after mixed and modified to the conventional pelletizer of mineral powder dry method squash type or rolling-type, obtains the little spherical shape of white of diameter 8.0mm ~ 10.0mm.After carrying out granulation process, the spherical shape product obtaining high-bulk-density uses.
The present invention also provides a kind of application of above-mentioned arbitrary described papermaking stickies control agent, concrete, add above-mentioned arbitrary described papermaking stickies control agent when pulping and paper-making, wherein the consumption of papermaking stickies control agent is that slurry per ton adds papermaking stickies control agent 1 ~ 10kg.Concrete, include making beating stage and bleaching stage in papermaking, controlling agent of the present invention can select the either phase in these two stages to add, thus carries out absorption and control to the sicker reclaimed in paper.
Enforcement of the present invention, at least has following advantage:
1, papermaking stickies control agent composition of the present invention is simple, and can realize adsorbing the hole of sicker, electrically adsorbing and lipophilic absorption simultaneously, good to the removal effect of sicker.
2, papermaking stickies control agent of the present invention can the significant prolongation paper machine cleaning frequency, and improve papermaking efficiency, use simple to operate, exploitativeness is high.
3, papermaking stickies control agent of the present invention can carry out processing and utilization to power plant's solid waste aluminous fly-ash, recycles, energy efficient to resource.
Accompanying drawing explanation
Fig. 1 is embodiment 1 mesosilicic acid calcium powder scanning electron microscope diagram;
Fig. 2 is embodiment 1 mesosilicic acid calcium powder transmission electron microscope figure;
Fig. 3 is embodiment 1 mesosilicic acid calcium powder transmission electron microscope hole figure.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with embodiments of the invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1
The papermaking stickies control agent of the present embodiment, comprises following component according to weight portion: calcium silicates powder 100 weight portion, cationic-type polyacrylamide 0.01 weight portion.
This papermaking stickies control agent can be prepared as follows: after according to above-mentioned composition batching, first pulverized by calcium silicates, obtained granularity is 1000 object calcium silicates powder.Again above-mentioned calcium silicates powder is placed in high mixed modification machine, and spray into beforehand dilution to concentration be 0.4% molecular weight be the cationic-type polyacrylamide aqueous solutions of polymers of 5,000,000 units, blended, obtain papermaking stickies control agent.
After testing, the specific area of the present embodiment controlling agent is 195m
2/ g, average grain diameter is 2.5 μm, and oil factor is 190g/100g, and maximum particle diameter is 12 μm, and the zeta value of its aqueous solution is+12mv.
Calcium silicates in the papermaking stickies control agent of the present embodiment extracts the calsil of the flyash desiliconization liquid in alumina process and milk of lime Reactive Synthesis from power plant solid waste aluminous fly-ash, wherein, and SiO in control flyash desiliconization liquid
2be 1:1 with the ratio of the amount of substance of CaO in milk of lime, reaction temperature is 80 DEG C, rotating speed controls at 500r/min, and the reaction time is 1.5h, after having reacted, reacting liquid filtering is obtained filter cake, with distilled water, drip washing (distilled water is 3:1 with the volume mass ratio of filter cake) is carried out to filter cake, drip washing 3 times, by filter cake 65 DEG C of oven dry, finally obtains the calcium silicates comprising calcium silicates nanometer sheet, the average grain diameter of this calcium silicates is 30 μm after testing, and specific area is 152m
2/ g, porosity is 0.5cm
3/ g, and the thick 5 ~ 8nm of nanometer sheet in this calcium silicates, wide 150 ~ 300nm.Carry out electron microscope and transmission electron microscope observing to the calcium silicates powder of preparation in embodiment 1, Fig. 1 is embodiment 1 mesosilicic acid calcium powder scanning electron microscope diagram, and Fig. 2 is embodiment 1 mesosilicic acid calcium powder transmission electron microscope figure.Can be determined by Fig. 1 and Fig. 2, this calcium silicates powder comprises nanometer sheet, and its thickness is about 5 ~ 8nm.Fig. 3 is embodiment 1 mesosilicic acid calcium powder transmission electron microscope hole figure, and wherein arrow indication is the hole of this embodiment mesosilicic acid calcium powder.
Embodiment 2
The papermaking stickies control agent of the present embodiment, comprises following component according to weight portion: calcium silicates powder 85 weight portion, cationic-type polyacrylamide 0.005 weight portion, platy talc 25 weight portion, bentonite 2.5 weight portion.
This papermaking stickies control agent can be prepared as follows: after according to above-mentioned composition batching, first pulverized by calcium silicates, obtained granularity is 850 object calcium silicates powder.Again above-mentioned calcium silicates powder, platy talc and bentonite are placed in high mixed modification machine, and spray into beforehand dilution to concentration be 0.5% molecular weight be 6,500,000 cationic-type polyacrylamide aqueous solutions of polymers, blended, obtain papermaking stickies control agent.
After testing, the specific area of the present embodiment controlling agent is 220m
2/ g, average grain diameter is 2.8 μm, and oil factor is 220g/100g, and maximum particle diameter is 12 μm, and the zeta value of its aqueous solution is+15mv.
Calcium silicates powder in the papermaking stickies control agent of the present embodiment extracts the calsil of the flyash desiliconization liquid in alumina process and milk of lime Reactive Synthesis from power plant solid waste aluminous fly-ash, wherein, and SiO in control flyash desiliconization liquid
2be 1:1.2 with the ratio of the amount of substance of CaO in milk of lime, reaction temperature is 100 DEG C, rotating speed controls at 1000r/min, and the reaction time is 1h, after having reacted, reacting liquid filtering is obtained filter cake, with ethanol, drip washing (ethanol is 2.5:1 with the volume mass ratio of filter cake) is carried out to filter cake, drip washing 3 times, by filter cake 75 DEG C of oven dry, finally obtains the calcium silicates comprising calcium silicates nanometer sheet, the average grain diameter of this calcium silicates is 22 μm after testing, and specific area is 165m
2/ g, porosity is 0.64cm
3/ g, and the thick 5 ~ 8nm of nanometer sheet in this calcium silicates, wide 100 ~ 250nm.
Embodiment 3
The papermaking stickies control agent of the present embodiment, comprises following component according to weight portion: calcium silicates powder 90 weight portion, cationic-type polyacrylamide 0.01 weight portion, platy talc 5 weight portion.
This papermaking stickies control agent can be prepared as follows: after according to above-mentioned composition batching, first pulverized by calcium silicates, obtained granularity is 1200 object calcium silicates powder.Again above-mentioned calcium silicates powder and platy talc are placed in high mixed modification machine, and spray into beforehand dilution to concentration be 0.35% molecular weight be 8,000,000 cationic-type polyacrylamide aqueous solutions of polymers, blended, obtain papermaking stickies control agent.
After testing, the specific area of the present embodiment controlling agent is 205m
2/ g, average grain diameter is 2.1 μm, and oil factor is 160g/100g, and maximum particle diameter is 10 μm, and the zeta value of its aqueous solution is+19mv.
Calcium silicates powder in the papermaking stickies control agent of the present embodiment extracts the calsil of the flyash desiliconization liquid in alumina process and milk of lime Reactive Synthesis from power plant solid waste aluminous fly-ash, wherein, and SiO in control flyash desiliconization liquid
2be 1:1.1 with the ratio of the amount of substance of CaO in milk of lime, reaction temperature is 85 DEG C, rotating speed controls at 750r/min, and the reaction time is 1.5h, after having reacted, reacting liquid filtering is obtained filter cake, with 2-methyl cellosolve, drip washing (2-methyl cellosolve is 3:1 with the volume mass ratio of filter cake) is carried out to filter cake, drip washing 3 times, by filter cake 85 DEG C of oven dry, finally obtains the calcium silicates comprising calcium silicates nanometer sheet, the average grain diameter of this calcium silicates is 25 μm after testing, and specific area is 155m
2/ g, porosity is 0.54cm
3/ g, and the thick 7 ~ 10nm of nanometer sheet in this calcium silicates, wide 150 ~ 300nm.
Embodiment 4
The papermaking stickies control agent of the present embodiment, comprises following component according to weight portion: calcium silicates powder 75 weight portion, cationic-type polyacrylamide 0.08 weight portion, bentonite 3.5 weight portion.
This papermaking stickies control agent can be prepared as follows: after according to above-mentioned composition batching, first pulverized by calcium silicates, obtained granularity is 800 object calcium silicates powder.Again above-mentioned calcium silicates powder and bentonite are placed in high mixed modification machine, and spray into beforehand dilution to concentration be 0.3% molecular weight be 1,000 ten thousand cationic-type polyacrylamide aqueous solutions of polymers, blended, obtain papermaking stickies control agent.
After testing, the specific area of the present embodiment controlling agent is 197m
2/ g, average grain diameter is 2.3 μm, and oil factor is 155g/100g, and maximum particle diameter is 9 μm, and the zeta value of its aqueous solution is+27mv.
Calcium silicates powder in the papermaking stickies control agent of the present embodiment extracts the calsil of the flyash desiliconization liquid in alumina process and milk of lime Reactive Synthesis from power plant solid waste aluminous fly-ash, wherein, and SiO in control flyash desiliconization liquid
2be 1:1.2 with the ratio of the amount of substance of CaO in milk of lime, reaction temperature is 100 DEG C, rotating speed controls at 1000r/min, and the reaction time is 1h, after having reacted, reacting liquid filtering is obtained filter cake, spent glycol ether carries out drip washing (ethylene glycol ethyl ether is 3:1 with the volume mass ratio of filter cake) to filter cake, drip washing 3 times, by filter cake 95 DEG C of oven dry, finally obtains the calcium silicates comprising calcium silicates nanometer sheet, the average grain diameter of this calcium silicates is 21 μm after testing, and specific area is 155m
2/ g, porosity is 0.55cm
3/ g, and the thick 8 ~ 10nm of nanometer sheet in this calcium silicates, wide 150 ~ 300nm.
Embodiment 5
The papermaking stickies control agent of the present embodiment, comprises following component according to weight portion: calcium silicates powder 95 weight portion, cationic-type polyacrylamide 0.012 weight portion, platy talc 20 weight portion, bentonite 1.5 weight portion.
This papermaking stickies control agent can be prepared as follows: after according to above-mentioned composition batching, first pulverized by calcium silicates, obtained granularity is 1000 object calcium silicates powder.Again above-mentioned calcium silicates powder, platy talc and bentonite are placed in high mixed modification machine, and spray into beforehand dilution to concentration be 0.5% molecular weight be 7,000,000 cationic-type polyacrylamide aqueous solutions of polymers, blended, obtain papermaking stickies control agent.
After testing, the specific area of the present embodiment controlling agent is 275m
2/ g, average grain diameter is 2.6 μm, and oil factor is 250g/100g, and maximum particle diameter is 12 μm, and the zeta value of its aqueous solution is+25mv.
Calcium silicates powder in the papermaking stickies control agent of the present embodiment extracts the calsil of the flyash desiliconization liquid in alumina process and milk of lime Reactive Synthesis from power plant solid waste aluminous fly-ash, wherein, and SiO in control flyash desiliconization liquid
2be 1:1 with the ratio of the amount of substance of CaO in milk of lime, reaction temperature is 90 DEG C, rotating speed controls at 500r/min, reaction time is 2h, after having reacted, reacting liquid filtering is obtained filter cake, with the mixed liquor of distilled water and ethanol (can arbitrary proportion mix), drip washing (volume mass of mixed liquor and filter cake is than being 2.5:1) is carried out to filter cake, drip washing 3 times, by filter cake 105 DEG C of oven dry, finally obtain the calcium silicates comprising calcium silicates nanometer sheet, the average grain diameter of this calcium silicates is 27 μm after testing, and specific area is 175m
2/ g, porosity is 0.68cm
3/ g, and the thick 7 ~ 10nm of nanometer sheet in this calcium silicates, wide 100 ~ 300nm.
Test example 1
The Shandong daily output 3000 tons of sulfate, wood raw material is the leaf wood assortment such as Eucalyptus, acacia rachii, poplar of different proportion; Sicker (DCM) average content 0.47% in paper pulp before bleaching, pulp machine is manufactured paper with pulp the speed of a motor vehicle 150 ~ 200m/min.
At bleaching stage, use the papermaking stickies control agent of embodiment 1 ~ embodiment 5 respectively and by routine in contrast for imported L uzenac S product, the sicker in above-mentioned paper technology controlled, carrying out the Comparison study experiment of continuous 3 months, the results are shown in Table 1:
The effect of the different stickies control agent products of table 1 to resin stickies control compares
Test example 2
Take waste newsprint as certain regenerated newsprint factory of main raw material, paper machine speed 430m/min, on average produces 48g/m daily
2newsprint 35 tons.Paper pulp raw material proportioning reclaims newsprint paper pulp 83% for the domestic deinking of self-control, reclaims blank sheet of paper limit 17%.Sicker (DCM) average content 2.16% of mixed pulp.Due in paper pulp containing the tiny ink of high level, resin and other auxiliary agent residues of manufacturing paper with pulp added, cause more serious production to manufacture paper with pulp the quality problems such as obstacle and sheet paper products spot.
In the making beating stage, use the papermaking stickies control agent of embodiment 1 ~ embodiment 5 respectively and by routine in contrast for imported L uzenac S product, the sicker in above-mentioned paper technology controlled, carrying out the Comparison study test of continuous 3 months, carry out blank test simultaneously, the results are shown in Table 2:
Table 2 product of the present invention is used for the effect of regenerated newsprint stickies control
From above-mentioned table 1 and table 2, papermaking stickies control agent of the present invention can effectively control the sicker in paper-making process, the cleannes that improve papermaking machine extend the cleaning frequency, accelerate the running speed of paper machine, decrease the obstacle of manufacturing paper with pulp in the process of manufacturing paper with pulp, improve papermaking efficiency.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a papermaking stickies control agent, is characterized in that, comprises following component according to weight portion: 70 ~ 100 parts, calcium silicates powder, platy talc 0 ~ 30 part, bentonite 0 ~ 5 part and cationic-type polyacrylamide 0.005 ~ 0.015 part; Wherein, described calcium silicates powder obtains by carrying out pulverizing to calcium silicates, and described calcium silicates comprises calcium silicates nanometer sheet.
2. papermaking stickies control agent according to claim 1, is characterized in that, the granularity of described calcium silicates powder is 800 ~ 1250 orders.
3. papermaking stickies control agent according to claim 2, is characterized in that, the average grain diameter of described calcium silicates is 20 ~ 35 μm, specific area>=150m
2/ g, porosity of=0.5cm
3/ g.
4. papermaking stickies control agent according to claim 3, is characterized in that, described calcium silicates reacts obtained by flyash desiliconization liquid and milk of lime; Wherein, the ratio controlling the amount of substance of silico-calcium in reactant is 1:1 ~ 1.2, and reaction temperature is 80 ~ 100 DEG C, and rotating speed is 300 ~ 1000r/min.
5. papermaking stickies control agent according to claim 1, is characterized in that, the molecular weight of described cationic-type polyacrylamide is 5,000,000 ~ 1,200 ten thousand.
6. papermaking stickies control agent according to claim 1, is characterized in that, described bentonitic particle diameter≤500nm.
7. papermaking stickies control agent according to claim 1, is characterized in that, the specific area of described papermaking stickies control agent is 170 ~ 350m
2/ g, oil factor>=130.0g/100g, average grain diameter < 5.0 μm, maximum particle diameter < 15 μm, zeta potential value is 10mv ~ 30mv.
8. the preparation method of the arbitrary described papermaking stickies control agent of claim 1 to 7, is characterized in that, comprise the steps:
1) calcium silicates is pulverized, obtained described calcium silicates powder;
2) by mass percentage be the cationic-type polyacrylamide spray solution of 0.1 ~ 0.5% on the raw material comprising 70 ~ 100 weight portion calcium silicates powder, 0 ~ 30 weight portion platy talc and 0 ~ 5 parts by weight of bentonite, obtained papermaking stickies control agent;
The weight portion of described papermaking stickies control agent cationic polyacrylamide is 0.005 ~ 0.015 part.
9. preparation method according to claim 8, is characterized in that, also comprises and carries out granulation to described papermaking stickies control agent, and obtained diameter is the spherical papermaking stickies control agent particle of 8 ~ 10mm.
10. the application of the arbitrary described papermaking stickies control agent of claim 1 to 7, it is characterized in that, add the arbitrary described papermaking stickies control agent of claim 1 to 7 when pulping and paper-making, wherein the consumption of papermaking stickies control agent is that slurry per ton adds papermaking stickies control agent 1 ~ 10kg.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107476105A (en) * | 2017-07-17 | 2017-12-15 | 山东华泰纸业股份有限公司 | A kind of technique that sicker is removed during waste paper pulp-making |
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