CN105239451B - A kind of preparation method of paper grade (stock) mineral fibres - Google Patents
A kind of preparation method of paper grade (stock) mineral fibres Download PDFInfo
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- CN105239451B CN105239451B CN201510543441.0A CN201510543441A CN105239451B CN 105239451 B CN105239451 B CN 105239451B CN 201510543441 A CN201510543441 A CN 201510543441A CN 105239451 B CN105239451 B CN 105239451B
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Abstract
The present invention discloses a kind of preparation method of paper grade (stock) mineral fibres, the method is that the class oh group of mineral fiber surfaces is passed through calcium chloride sodium silicate compounding activation, and by with hydrophilic high molecular material cross-linked gel, mineral fiber surfaces are made to form firm hydrophilic gel, because gel has flexibility and characterization of adsorption, the dispersibility in imparting mineral fibres toughness, water and the associativity with Plant fiber.By processing to mineral fibres gelation, improve flexibility, the dispersibility in paper pulp and the adhesion with Plant fiber that mineral fibres is used for papermaking, papermaking can be used with 60% high addition, excellent with Plant fiber's intertexture adhesive property, paper keeps good flexibility.This preparation method significantly advances mineral fibres and replaces the process that Plant fiber is used for papermaking.
Description
Technical field
The present invention relates to paper making raw material field is and in particular to a kind of preparation method of paper grade (stock) gelation mineral fibres.
Background technology
Development with paper technology and the requirement of energy-conserving and environment-protective, mineral fibres becomes a kind of alternative Plant fiber and is used for
The important source material of papermaking.In recent years, the research being used for papermaking about mineral fibres substituted plant fiber causes the attention of people.Profit
Use mineral fibres papermaking, the pressure that China cuts down forest can be alleviated to a great extent, save paper pulp, decrease timber simultaneously
Water consumption and environmental destruction that slurrying brings, also reduce papermaking cost, reduce the pollution to environment for the papermaking.But mineral are fine
Wesy there is also some defects in papermaking, and the hardness of such as mineral fibres is big, fragility strong, surface no organic group, smooth difficulty
Glue, be difficult to be combined with Plant fiber, lead to current mineral fibres limited in the replacement amount of field of papermaking.In order to improve mineral fibres
In the replacement amount of field of papermaking, need to solve the flexibility of mineral fibres and cementability under aqueous conditions.By improving ore deposit
The flexibility of fibres, cementability, are the key technologies realizing mineral fibres substituted plant fiber.
Surface conditioning agent, softening agent, dispersant, reinforcing agent etc. are mainly passed through in process to mineral fibres at present, to obtain
The flexibility of mineral fibres similar plants fiber, dispersibility, increase the adhesion of mineral fibres and Plant fiber.
Chinese invention patent CN201310563777.4 discloses a kind of method of modifying increasing white clay fibre strength, will gather
Vinyl alcohol, water, H2O2And sodium hydroxide dissolving, obtain softening intensifier, white clay fiber is added softening intensifier, stirs
And after soaking, the intensity of the modified white clay fiber obtaining is big, is a kind of good fiber quality raw material of alternative Plant fiber.
Chinese invention patent CN201010556422.9 discloses a kind of coal ash fiber and is applied to the increasing in paper-making process
Strong method of modifying, reinforcing agent is by polyvinyl alcohol and chloroacetate reaction, adjusts pH value of solution, obtains the polyvinyl alcohol with carboxylic group
Solution, then coal ash fiber is dispersed in reinforcing agent, adds silane coupler, adds Plant fiber on paper machine trial machine
Papermaking, obtains mixing paper, after modifier treatment coal ash fiber, can improve the intensity that coal ash fiber becomes paper paper.
Chinese invention patent CN101747471B discloses a kind of preparation method of fly ash fiber reinforced modifier, by third
Olefin(e) acid and 2-(Acryloyloxy)ethanol carry out copolymerization, then are charged with N, N- dimethyl -1, and 3- propane diamine carries out amidatioon, obtains many
The fly ash fiber reinforced modifier of hydroxyl cationic polymer type.With the polyhydroxy cation polymer of preparation, Ke Yigai
Dispersibility in water for the kind coal ash fiber, can increase the adhesion between coal ash fiber and wood pulp or straw pulp fiber, change
The kind intensity mixed with coal ash fiber paper.According to above-mentioned, because mineral fiber surfaces are in weak elecrtonegativity and surface without carboxylic
Base, hydroxyl isoreactivity functional group are it is impossible to form effective combination by charge attraction or hydrogen bond action and fiber.And, mineral are fine
In papermaking, due to there is rigidity, fragility and higher hardness, with the increase of addition, the toughness of paper reduces, and stays for Wesy
The property stayed reduces, and paper shows as dry linting, to negative effects such as diddle-net abrasions.Although mineral fibres passes through to soak in softening agent,
Certain toughness can be given, but due to mineral fiber surfaces no organic group, lack and effectively permeate with softening agent and be connected.
Therefore, for during papermaking after prior art process toughness reinforcing to mineral fibres, limited to the replacement amount of Plant fiber.With papermaking skill
The development of art and ecological requirements are it is desirable to increase the amount that mineral fibres replaces Plant fiber, thus the performance of mineral fibres is proposed
Higher requirement.Particularly it is badly in need of being processed into mineral fibres and there is the same flexible fiber of same Plant fiber.
Content of the invention
For the problems referred to above, the present invention provides a kind of preparation method of paper grade (stock) mineral fibres, and the method is that mineral are fine
The group in dimension table face pass through calcium chloride-sodium silicate compounding activation, and by with hydrophilic high molecular material cross-linked gel, make ore deposit
Fibres surface forms firm gel, and this cross-linked gel gives mineral fibres toughness, and easily disperses under aqueous conditions,
Can be used with 60% high addition in papermaking, excellent with Plant fiber's intertexture adhesive property, paper remains in that flexible and strong
Degree, advances mineral fibres and replaces the process that Plant fiber is used for papermaking.
The present invention is achieved through the following technical solutions：
A kind of preparation method of paper grade (stock) mineral fibres is it is characterised in that comprise the following steps：
（1）By the mineral fibres of 90-95 weight portion with the calcium chloride of 2-3 weight portion, the sodium silicate of 3-5 weight portion in vibration
Mixed grinding in mill, by applying mechanical energy, makes mineral fiber surfaces by advanced activation；
（2）By the emulsifing wax of 1-3 weight portion, the hydrophilic high molecular material of 5-8 weight portion and step（1）The activation obtaining
Mineral fibres and suitable quantity of water stir 0.5-1h under the conditions of 80-90 DEG C and form slurry；
（3）In step（2）Itaconic acid, the propylene of 1.5-3.5 weight portion of 0.2-0.5 weight portion is added in the slurry obtaining
Amide and appropriate cross-linking agent, stir under the conditions of 50-60 DEG C, are slowly added to initiator, cause cross-linking polymerization 20-35min；
Dosage of crosslinking agent is the 1-1.5% of acrylamide quality, and initiator amount is the 2-2.5% of acrylamide quality；
（4）By step（3）The material obtaining carry out filtering means dehydration, drying, pulverizing mill pulverize obtain paper grade (stock) gelation ore deposit
Fibres.
Described mineral fibres is basalt fibre, wollastonite fibre, coal ash fiber, glass fibre, gypsum fiber, sea
At least one in afrodite fiber, brucite fiber；
The modulus of described sodium silicate is 1.5-2.5；
Described emulsifing wax is the Cera Flava of nonionic；
Described hydrophilic macromolecule macromolecular material is shitosan, polyvinyl alcohol, carboxymethyl starch, sodium alginate, melon
One of that glue, artemisia glue or their mixture；
Described cross-linking agent is N,N methylene bis acrylamide, the double propylene of ethylene glycol diacrylate, 1,3- propylene glycol
One of acid esters, boric acid, epoxychloropropane, glutaraldehyde；
Described initiator is one of Ammonium persulfate., potassium peroxydisulfate, sodium peroxydisulfate.
A kind of preparation method of paper grade (stock) mineral fibres, by activating the class oh group of mineral fiber surfaces, by emulsifying
Hydrophilic polymer and mineral fibres dispersion simultaneously cross-linked polymeric, form the gel of firm connection, this crosslinking in mineral fiber surfaces
Gel gives mineral fibres pliability, and easily disperses under aqueous conditions.Because gel has characterization of adsorption, this gelation ore deposit
Fibres form hydrogen bond with the hydroxyl of Plant fiber's fiber surface cellulosic molecule, thus improve mineral fibres and Plant fiber
Between adhesion and retention, can be used with 60% high addition in papermaking, excellent with Plant fiber's intertexture adhesive property
Different, paper remains in that flexibility, and the tensile strength of paper, bursting strength, tearability etc. are all superior to plant fiber paper.Should
Preparation method, by processing to mineral fibres gelation, solves mineral fibres for the flexible problem of papermaking, in paper pulp
Scattering problem and the adhesion problem with Plant fiber, significantly advance mineral fibres and replace Plant fiber for papermaking
Process.
A kind of preparation method of paper grade (stock) mineral fibres, makes mineral fiber surfaces wrap flexible gel, overcomes and make in a large number
With the abrasion to gauze for the mineral fibres papermaking.
A kind of preparation method of paper grade (stock) mineral fibres, prominent feature and beneficial effect are compared with existing technology：
1st, material modified fine with mineral by mineral fiber surfaces deep activation, the class oh group of activated surface, making
Dimension firmly connects.
2nd, utilize cross-linked polymeric, form gel in mineral fiber surfaces, mineral fibres is changed into can be scattered solidifying in water
Glue, improve the flexibility of mineral fibres, dispersibility and with Plant fiber's associativity；Make mineral fibres replace Plant fiber to use
Replacement amount in papermaking is promoted to more than 60%, solves the defect that current mineral fibres is difficult to improve for papermaking addition.
3rd, preparation technology of the present invention is briefly easily-controllable, serialization closing can produce, is suitable for large-scale production application.
Specific embodiment
Below by way of specific embodiment, the present invention is described in further detail, but this should not be interpreted as the present invention
Scope be only limitted to Examples below.In the case of without departing from said method thought of the present invention, according to ordinary skill
Various replacements or change that knowledge and customary means are made, should be included in the scope of the present invention.
Embodiment 1
This enforcement row step is as follows：
（1）By the calcium chloride of the basalt fibre of 80 weight portions, the wollastonite fibre of 10 weight portions and 3 weight portions, 3 weight
Part modulus be 1.5 sodium silicate in vibromill mixed grinding, by applying mechanical energy, make mineral fiber surfaces class hydroxyl high
Degree activation；
（2）By the Cera Flava of the nonionic of 2 weight portions, the shitosan of 5 weight portions, the polyvinyl alcohol of 2 weight portions and step
（1）The activation mineral fibres obtaining and suitable quantity of water stir 0.5-1h under the conditions of 80-90 DEG C and form slurry；
（3）In step（2）The itaconic acid of 0.2 weight portion, the acrylamide of 1.5 weight portions and suitable is added in the slurry obtaining
Amount cross-linking agent N,N methylene bis acrylamide, stirs under the conditions of 50-60 DEG C, is slowly added to initiator ammonium persulfate, causes
Cross-linking polymerization 20min；Dosage of crosslinking agent is the 1.5% of acrylamide quality, and initiator amount is acrylamide quality
2.5%；
（4）By step（3）The material obtaining carry out filtering means dehydration, drying, pulverizing mill pulverize obtain paper grade (stock) gelation ore deposit
Fibres.
Gelation mineral fibres that the present embodiment is invented, do not carry out gelation mineral fibres respectively with 60% addition with
Paper pulp is mixed for papermaking, prepares the art paper containing mineral fibres：
| Detection project | Quantitative（g/m2） | Burst index（kPa.m2/g） | Folding number（Secondary） |
| Add 60% gelation mineral fibres art paper | 120 | 2.9 | 180 |
| Add 60% non-gelation mineral fibres art paper | 120 | 1.6 | 82 |
Comparing result shows, the gelation mineral fibres of the present invention is used for papermaking, its paper is flexible and intensity apparently higher than
Non- gelation mineral fibres.
Embodiment 2
This enforcement row step is as follows：
（1）By the calcium chloride of the wollastonite fibre of 70 weight portions, the coal ash fiber of 20 weight portions and 2 weight portions, 5 weight
Part modulus be 2 sodium silicate in vibromill mixed grinding, by applying mechanical energy, make mineral fiber surfaces by advanced activation；
（2）By the Cera Flava of the nonionic of 3 weight portions, the carboxymethyl starch of 6 weight portions, the sodium alginate of 1 weight portion with
Step（1）The activation mineral fibres obtaining and suitable quantity of water stir 0.5-1h under the conditions of 80-90 DEG C and form slurry；
（3）In step（2）The itaconic acid of 0.3 weight portion, the acrylamide of 1.5 weight portions and suitable is added in the slurry obtaining
Amount ethylene glycol diacrylate, stirs under the conditions of 50-60 DEG C, is slowly added to initiator and crosses potassium peroxydisulfate, causes cross-linked polymeric
Reaction 30min；Dosage of crosslinking agent is the 1% of acrylamide quality, and initiator amount is the 2% of acrylamide quality；
（4）By step（3）The material obtaining carry out filtering means dehydration, drying, pulverizing mill pulverize obtain paper grade (stock) gelation ore deposit
Fibres.
Gelation mineral fibres that the present embodiment is invented, do not carry out gelation mineral fibres respectively with 60% addition with
Paper pulp is mixed for papermaking, prepares the art post paperboard containing mineral fibres：
| Detection project | Quantitative（g/m2） | Burst index（kPa.m2/g） | Folding number（Secondary） |
| Add 60% gelation mineral fibres art post paperboard | 200 | 2.6 | 153 |
| Add 60% non-gelation mineral fibres art post paperboard | 200 | 1.3 | 65 |
Comparing result shows, the gelation mineral fibres of the present invention is used for papermaking, its paper is flexible and intensity apparently higher than
Non- gelation mineral fibres.
Embodiment 3
This enforcement row step is as follows：
（1）The sodium silicate that the calcium chloride of the glass fibre of 95 weight portions and 3 weight portions, 5 weight portion moduluses are 2.5 is being shaken
Mixed grinding in dynamic mill, by applying mechanical energy, makes mineral fiber surfaces by advanced activation；
（2）By the Cera Flava of the nonionic of 3 weight portions, the guar gum of 8 weight portions and step（1）The activation mineral obtaining are fine
Dimension and suitable quantity of water stir 0.5-1h under the conditions of 80-90 DEG C and form slurry；
（3）In step（2）The itaconic acid of 0.5 weight portion, the acrylamide of 1.5 weight portions and suitable is added in the slurry obtaining
Amount boric acid, stirs under the conditions of 50-60 DEG C, is slowly added to initiator and crosses sodium peroxydisulfate, causes cross-linking polymerization 35min；Hand over
Connection agent consumption is the 1% of acrylamide quality, and initiator amount is the 2% of acrylamide quality；
（4）By step（3）The material obtaining carry out filtering means dehydration, drying, pulverizing mill pulverize obtain paper grade (stock) gelation ore deposit
Fibres.
Gelation mineral fibres that the present embodiment is invented, do not carry out gelation mineral fibres respectively with 60% addition with
Paper pulp is mixed for papermaking, prepares the kraft paper containing mineral fibres：
| Detection project | Quantitative（g/m2） | Burst index（kPa.m2/g） | Folding number（Secondary） |
| Add 60% gelation mineral fibres kraft paper | 85 | 3.4 | 311 |
| Add 60% non-gelation mineral fibres kraft paper | 85 | 2.1 | 162 |
Comparing result shows, the gelation mineral fibres of the present invention is used for papermaking, its paper is flexible and intensity apparently higher than
Non- gelation mineral fibres.
Embodiment 4
This enforcement row step is as follows：
（1）By the calcium chloride of the coal ash fiber of 75 weight portions, the brucite fiber of 15 weight portions and 2 weight portions, 4 weight
Part modulus be 2.5 sodium silicate in vibromill mixed grinding, by applying mechanical energy, so that mineral fiber surfaces is highly lived
Change；
（2）By the Cera Flava of the nonionic of 3 weight portions, the sodium alginate of 5 weight portions, the artemisia glue of 1 weight portion and step
（1）The activation mineral fibres obtaining and suitable quantity of water stir 0.5-1h under the conditions of 80-90 DEG C and form slurry；
（3）In step（2）The itaconic acid of 0.5 weight portion, the acrylamide of 1.5 weight portions and suitable is added in the slurry obtaining
Amount glutaraldehyde, stirs under the conditions of 50-60 DEG C, is slowly added to initiator ammonium persulfate, causes cross-linking polymerization 35min；Hand over
Connection agent consumption is the 1.5% of acrylamide quality, and initiator amount is the 2.5% of acrylamide quality；
（4）By step（3）The material obtaining carry out filtering means dehydration, drying, pulverizing mill pulverize obtain paper grade (stock) gelation ore deposit
Fibres.
Gelation mineral fibres that the present embodiment is invented, do not carry out gelation mineral fibres respectively with 60% addition with
Paper pulp is mixed for papermaking, prepares the base board containing mineral fibres：
| Detection project | Quantitative（g/m2） | Burst index（kPa.m2/g） | Folding number（Secondary） |
| Add 60% gelation mineral fibres base board | 350 | 2.5 | 109 |
| Add 60% non-gelation mineral fibres base board | 350 | 1.1 | 52 |
Comparing result shows, the gelation mineral fibres of the present invention is used for papermaking, its paper is flexible and intensity apparently higher than
Non- gelation mineral fibres.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creation
Property concept, then can make other change and modification to these embodiments.So, claims are intended to be construed to including excellent
Select embodiment and fall into being had altered and changing of the scope of the invention.
Obviously, those skilled in the art can carry out the various changes and modification essence without deviating from the present invention to the present invention
God and scope.So, if these modifications of the present invention and modification belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprise these changes and modification.
Claims (6)
1. a kind of preparation method of paper grade (stock) mineral fibres is it is characterised in that comprise the following steps：
（1）By the calcium chloride of the mineral fibres of 90-95 weight portion and 2-3 weight portion, 3-5 weight portion sodium silicate in vibromill
Mixed grinding, by applying mechanical energy, makes mineral fiber surfaces by advanced activation；The modulus of wherein said sodium silicate is 1.5-
2.5；
（2）By the emulsifing wax of 1-3 weight portion, the hydrophilic high molecular material of 5-8 weight portion and step（1）The activation mineral obtaining
Fiber and suitable quantity of water stir 0.5-1h under the conditions of 80-90 DEG C and form slurry；
（3）In step（2）Itaconic acid, the acrylamide of 1.5-3.5 weight portion of 0.2-0.5 weight portion is added in the slurry obtaining
With appropriate cross-linking agent, stir under the conditions of 50-60 DEG C, be slowly added to initiator, cause cross-linking polymerization 20-35min, crosslinked
Agent consumption is the 1-1.5% of acrylamide quality, and initiator amount is the 2-2.5% of acrylamide quality；
（4）By step（3）The material obtaining carries out filtering means dehydration, drying, pulverizing mill pulverize that to obtain paper grade (stock) gelation mineral fine
Dimension.
2. a kind of preparation method of paper grade (stock) mineral fibres according to claim 1, is characterized in that：Described mineral fibres
Be basalt fibre, wollastonite fibre, coal ash fiber, glass fibre, gypsum fiber, sepiolite fibre, in brucite fiber
At least one.
3. a kind of preparation method of paper grade (stock) mineral fibres according to claim 1, is characterized in that：Described emulsifing wax is
The Cera Flava of nonionic.
4. a kind of preparation method of paper grade (stock) mineral fibres according to claim 1, is characterized in that：Described hydrophilic is high
Molecular material is one of shitosan, polyvinyl alcohol, carboxymethyl starch, sodium alginate, guar gum, artemisia glue or theirs is mixed
Compound.
5. a kind of preparation method of paper grade (stock) mineral fibres according to claim 1, is characterized in that：Described cross-linking agent is
N,N methylene bis acrylamide, ethylene glycol diacrylate, 1,3- propylene glycol double methacrylate, boric acid, epoxychloropropane,
One of glutaraldehyde.
6. a kind of preparation method of paper grade (stock) mineral fibres according to claim 1, is characterized in that：Described initiator is
One of Ammonium persulfate., potassium peroxydisulfate, sodium peroxydisulfate.
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| CN106048769A (en) * | 2016-07-20 | 2016-10-26 | 盱眙恒泰矿业科技有限公司 | Preparation method of polypropylene-attapulgite composite fiber for papermaking |
| CN107893330A (en) * | 2017-12-28 | 2018-04-10 | 安徽宏实光机电高科有限公司 | A kind of preparation method of plasma grafting processing complex fiber material |
| CN108221471A (en) * | 2018-01-22 | 2018-06-29 | 王家浩 | A kind of polymer modification paper making pulp |
| CN111730916A (en) * | 2020-07-03 | 2020-10-02 | 合肥宏图彩印有限公司 | Production process for preparing high-strength corrugated packing paper by using mineral fibers |
| CN112522996B (en) * | 2020-11-27 | 2022-12-23 | 山东鲁阳节能材料股份有限公司 | Toughened inorganic paper and preparation method thereof |
| CN112522986B (en) * | 2020-11-27 | 2022-06-17 | 山东鲁阳节能材料股份有限公司 | Adsorption type inorganic combined fiber paper and preparation method thereof |
| CN115491927B (en) * | 2022-09-28 | 2023-11-10 | 福建星城纸业有限公司 | High-strength copy paper and production method thereof |
| CN115538208B (en) * | 2022-10-08 | 2023-11-24 | 江西省芦林纸业股份有限公司 | Preparation process of environment-friendly recycled paper |
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| CN104448388B (en) * | 2014-11-03 | 2017-05-10 | 成都新柯力化工科技有限公司 | Special calcium metasilicate fiber for rich mineral paper and preparation method of special calcium metasilicate fiber |
| CN104626438B (en) * | 2014-12-30 | 2016-08-17 | 成都新柯力化工科技有限公司 | A kind of preparation method of fiber stone paper |
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