CN108640633A - A kind of preparation method of multiple dimensioned polyacrylonitrile fibre plasterboard - Google Patents
A kind of preparation method of multiple dimensioned polyacrylonitrile fibre plasterboard Download PDFInfo
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- CN108640633A CN108640633A CN201810755823.3A CN201810755823A CN108640633A CN 108640633 A CN108640633 A CN 108640633A CN 201810755823 A CN201810755823 A CN 201810755823A CN 108640633 A CN108640633 A CN 108640633A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
- C04B28/142—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements
- C04B28/143—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements the synthetic calcium sulfate being phosphogypsum
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
- C04B28/142—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
- C04B28/142—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements
- C04B28/144—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements the synthetic calcium sulfate being a flue gas desulfurization product
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of preparation methods of multiple dimensioned polyacrylonitrile fibre plasterboard, belong to technical field of finishing materials.The present invention first is mixed waste paper and water to obtain secondary stock；Secondary stock building gypsum plaster, water, foaming agent, hydrophober, modified starch, water-reducing agent and cement are added in continuous mixer successively again and are uniformly mixed, Gypsum slurry is made；After Gypsum slurry and multiple dimensioned polyacrylonitrile fibre are stirred, molding obtains slab；Slab is moved into steam-cured kettle, after pressurized, heated is steam-cured, is discharged, dry, cutting, stacking is to get multiple dimensioned polyacrylonitrile fibre plasterboard.The invention enables the anti crack performances of plasterboard further to be promoted.
Description
Technical field
The invention discloses a kind of preparation methods of multiple dimensioned polyacrylonitrile fibre plasterboard, belong to finishing material technology neck
Domain.
Background technology
Fibrous plaster is to obtain the new product succeeded in developing again after after Thistle board.Due to appearance
Protecting Paper is eliminated, therefore application range is also expanded other than whole application ranges of covering Thistle board, it is comprehensive
It closes performance and is parity with or superiority over Paper-faced gyp panel products, cost is equal or slightly larger than Thistle board but the internal rate of return of investment
Higher than Thistle board, therefore it is a kind of building panel having very much potentiality to be exploited.
Fibrous plaster has sizable flexibility.From the point of view of the material of plate, intensity, quality, thickness and type are equal
Can great changes have taken place, and the adjustment time needed for the change of product material is very short, can provide in time satisfied product, meet it is new
Market demands.From the point of view of template variation, there are homogeneous plate, three layers of on-gauge plate, light plate and structural slab, coating plate, customer's particular/special requirement
Plate, also new product.In application aspect, backboard, the prefabricated board outer cladding of drywall panel, wall lining, partition plate, tile and brick can be made
Layer, ceiling block, floor, fire resistant doorsets and column, skirting and special applications, such as trailer and the interior wall of ship, outdoor heat preservation is whole
Decoration system.It is also other other than common building industry, prefabricated housing industry and user voluntarily decoration marked in terms of selling market
New markets.
Be presently used for improve cement-base composite material performance kinds of fibers it is very much, mainly have steel fibre, glass fibre,
Carbon fiber, synthetic fibers, mineral fibres, cellulose fibre etc..The different properties of these fibers, mixing for different fibers may
The confounding effect different from Single Fiber is generated, to play enhancing and the toughening effect of various fibers.Some researchers are right
Assorted fibre cement-base composite material carries out pilot study, they use fiber (such as steel fibre, glass fibers of high elastic modulus
Dimension) and high ductility fiber (such as polypropylene fibre, polyethylene fibre) blending, so that cement-base composite material is obtained and mixes Single Fiber
The comprehensive performance being not achieved.The present Research of assorted fibre cement-base composite material is made a general survey of, majority is to use dual extension-compression modulus
Fiber mixed.
The present invention selects multiple dimensioned polyacrylonitrile fibre to be added in plasterboard so that the anti crack performance of plasterboard obtain into
One step is promoted.
Invention content
The present invention solves the technical problem of：The purpose of the present invention is be directed to traditional fibre plasterboard anti crack performance without
The problem of method further increases provides a kind of preparation method of multiple dimensioned polyacrylonitrile plasterboard.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is：
（1）By waste paper after shredder crushes and water by 8:1~10:Rotary drum pulping machine is added in 1 mass ratio, obtains secondary stock；
（2）It counts in parts by weight, by 10~15 parts of secondary stock, 25~30 parts of building gypsum plaster, 20~25 parts of water, foaming agent 3~5
Mixing is equal in part, 3~5 parts of hydrophober, 3~5 parts of modified starch, 3~5 parts of water-reducing agent and 5~8 parts of addition continuous mixers of cement
It is even, Gypsum slurry is made；
（3）It is 10 in mass ratio by Gypsum slurry and multiple dimensioned polyacrylonitrile fibre:1~8:After 1 is stirred, molding obtains plate
Base；
（4）Slab is moved into steam-cured kettle, after pressurized, heated is steam-cured, is discharged, dry, cutting, stacking is to get multiple dimensioned polypropylene
Nitrile fibrous plaster.
Step（1）The waste paper is any one in old newsprint, useless yellow plate paper or useless corrugated paper.
Step（1）The building gypsum plaster is in phosphogypsum powder, desulfurization gypsum powder, citric acid gypsum powder or fluorine gypsum powder
Any one.
Step（1）The foaming agent is lauryl sodium sulfate, sodium sulfate of polyethenoxy ether of fatty alcohol or α-olefin sulfonic acid
Any one in sodium.
Step（1）The modified starch is sour modified corn starch.
Step（1）The water-reducing agent is naphthalene series high-efficiency water-reducing agent, aliphatic high-efficiency water reducing agent, aminosulfonate-based superplasticizer or poly-
Carboxylic acid high-performance water reducing agent.
Step（2）The cement is portland cement, arbitrary in Portland cement or portland-pozzolan cement
It is a kind of.
Step（2）The hydrophober is organosilicon moisture repellent.
, step（3）The multiple dimensioned polyacrylonitrile fibre be by draw ratio be 50/80 polyacrylonitrile crude fibre and major diameter
Than the polyacrylonitrile fine fibre in mass ratio 1 for 19/100:1 mixes.
The beneficial effects of the invention are as follows：
（1）The present invention adds multiple dimensioned polyacrylonitrile fibre in the preparation process of plasterboard, and multiple dimensioned polyacrylonitrile is fine
Dimension be 50/80 by draw ratio polyacrylonitrile crude fibre and draw ratio be 19/100 polyacrylonitrile fine fibre in mass ratio 1:
1 mixes, the different properties of crude fibre and fine fibre, and fine fibre can reduce and inhibit settlement crack in plasticity state concrete
And contraction fissure, crude fibre helps to reduce or inhibits the desciccation crack in maturing, to generate the knot of synergistic effect
Fruit, fine fibre and it is coarse-fibred mix, the cohesion of fiber and concrete substrate can be improved, to which the plasticity for improving concrete is anti-
Split ability；
（2）Cement is added in the preparation process of multiple dimensioned polyacrylonitrile fibre plasterboard in the present invention, since cement is alkalinity, because
A degree of hydrolysis occurs in alkaline medium for this polyacrylonitrile fibre so that fiber surface is roughened, and generates groove, recessed
Nest, therefore the mechanical snap degree between polyacrylonitrile fibre and gypsum board matrix is strengthened, to further increase the anti-of product
Fragility energy；In addition, the reaction of partial hydrolysis occurs under alkaline condition for polyacrylonitrile, hydrolysis generates calcium carboxylates group, carboxylic acid
Calcium base is high with polarity gypsum compatibility, to strengthen the interface compatibility of polyacrylonitrile and gypsum；In addition, the cement being added
Main clinker mineral is dicalcium silicate, tricalcium silicate, four calcium of silicic acid and iron phase, and aquation occurs for main clinker mineral and the water of cement
Reaction, and gypsum can promote the aquation of cement, be conducive to the reinforcement of strength of cement, so that multiple dimensioned polyacrylonitrile is fine
The anti crack performance of dimension plasterboard is strengthened.
Specific implementation mode
1~2 part of cornstarch is taken to be added in the inorganic acid solution that 2~3 parts of mass fractions are 0.5%~10%, at 50 DEG C
At a temperature of stir 1~2h, obtain mixed liquor；Gained mixed liquor is washed, is then placed in drying machine, temperature be 100~
Dry 1~2h, obtains solids under conditions of 105 DEG C；Solids is crushed again, 1 mesh round-hole mesh is crossed, obtains sour modified corn starch；
Waste paper is put into shredder and crushes processing, 5 mesh round-hole meshes is smashed it through, obtains paper scrap, by paper scrap and water in mass ratio 8:1~
10:1 ratio is added in rotary drum pulping machine, is 100~300r/min in rotating speed, temperature stirs 1 under conditions of being 75~80 DEG C
~3h, obtains secondary stock；It counts in parts by weight, successively by 10~15 parts of secondary stock, 25~30 parts of building gypsum plaster, water 20~25
Part, 3~5 parts of foaming agent, 3~5 parts of hydrophober, 3~5 parts of modified starch, 3~5 parts of water-reducing agent and 5~8 parts of cement are added continuous
It is 300~500r/min in rotating speed, temperature stirs 2~4h under conditions of being 65~75 DEG C, obtains Gypsum slurry in blender；It will
The polyacrylonitrile fine fibre in mass ratio 1 that the polyacrylonitrile crude fibre and draw ratio that are 50/80 by draw ratio are 19/100:1 is mixed
It closes, obtains multiple dimensioned polyacrylonitrile fibre, and be 10 in mass ratio by the multiple dimensioned polyacrylonitrile fibre of gained and Gypsum slurry:1~
8:1 is added in blender, is 300~500r/min in rotating speed, temperature stirs 2~3h under conditions of being 75~80 DEG C, must mix
Object；Mixture is taped against on molding nylon tape, a top surface ribbon conveyer is equipped with above molding nylon tape, gypsum board surface can be made
Gap that is smooth, adjusting top surface ribbon conveyer nylon tape and be molded between nylon tape, can adjust the thickness of plank extremely
10~20mm；Mixture 3~5h of condensation hardening on molding nylon tape, obtains slab；Slab after slab is manually cut again moves
Enter in steam-cured kettle, is 1.2~1.6MPa in pressure, temperature is 120~150 DEG C, and steam-cured 2~5h obtains steam-cured slab；It again will be steam-cured
Slab is moved under the conditions of drying machine is 105~110 DEG C in temperature to dry and be sorted to constant weight, then by the slab after drying, heap
Pile and packaging are to get multiple dimensioned polyacrylonitrile fibre plasterboard.The waste paper is in old newsprint, useless yellow plate paper or useless corrugated paper
Any one.The building gypsum plaster is any one in phosphogypsum powder, desulfurization gypsum powder, citric acid gypsum powder or fluorine gypsum powder
Kind.The water-reducing agent is naphthalene series high-efficiency water-reducing agent, and aliphatic high-efficiency water reducing agent, aminosulfonate-based superplasticizer or poly-carboxylic high-performance subtract
Aqua.The cement is portland cement, any one in Portland cement or portland-pozzolan cement.It is described to hate
Aqua is organosilicon moisture repellent.
Example 1
It takes 2 parts of cornstarch to be added in the inorganic acid solution that 3 parts of mass fractions are 10%, stirs 2h at a temperature of 50 DEG C, obtain mixed
Close liquid；Gained mixed liquor is washed, is then placed in drying machine, dry 2h, obtains solid under conditions of temperature is 105 DEG C
Object；Solids is crushed again, 1 mesh round-hole mesh is crossed, obtains sour modified corn starch；Waste paper is put into shredder and crushes processing,
5 mesh round-hole meshes are smashed it through, paper scrap is obtained, by paper scrap and water in mass ratio 10:1 ratio is added in rotary drum pulping machine, in rotating speed
For 100r/min, temperature stirs 1h under conditions of being 75 DEG C, obtains secondary stock；Count in parts by weight, successively by 15 parts of secondary stock, build
5~8 parts of 30 parts of land plaster, 5 parts of water, 5 parts of foaming agent, 5 parts of hydrophober, 5 parts of modified starch, 3~5 parts of water-reducing agent and cement is built to add
Enter in continuous mixer, is 300r/min in rotating speed, temperature stirs 2h under conditions of being 65 DEG C, obtains Gypsum slurry；It will be by major diameter
The polyacrylonitrile fine fibre in mass ratio 1 for being 19/100 than the polyacrylonitrile crude fibre and draw ratio for 50/80:1 mixing, much
Scale polyacrylonitrile fibre, and be 10 in mass ratio by the multiple dimensioned polyacrylonitrile fibre of gained and Gypsum slurry:1 is added blender
It is interior, it is 300r/min in rotating speed, temperature stirs 2h under conditions of being 75 DEG C, obtains mixture；Mixture is taped against molding nylon tape
On, it is equipped with a top surface ribbon conveyer above molding nylon tape, gypsum board surface can be made smooth, adjusts top surface belt conveying
Gap between machine nylon tape and molding nylon tape can adjust the thickness of plank to 10mm；Mixture is on molding nylon tape
Condensation hardening 3h, obtains slab；Slab after slab is manually cut again moves into steam-cured kettle, is 1.2MPa in pressure, temperature is
120 DEG C, steam-cured 2h obtains steam-cured slab；Steam-cured slab is moved under the conditions of drying machine is 105 DEG C in temperature again and is dried to constant weight,
The slab after drying is sorted again, stacking and packaging are to get multiple dimensioned polyacrylonitrile fibre plasterboard.The waste paper is useless
Newspaper.The building gypsum plaster is phosphogypsum powder.The water-reducing agent is naphthalene series high-efficiency water-reducing agent.The cement is silicate cement
Mud.The hydrophober is organosilicon moisture repellent.
Example 2
It takes 2 parts of cornstarch to be added in the inorganic acid solution that 3 parts of mass fractions are 10%, stirs 2h at a temperature of 50 DEG C, obtain mixed
Close liquid；Gained mixed liquor is washed, is then placed in drying machine, dry 2h, obtains solid under conditions of temperature is 105 DEG C
Object；Solids is crushed again, 1 mesh round-hole mesh is crossed, obtains sour modified corn starch；Waste paper is put into shredder and crushes processing,
5 mesh round-hole meshes are smashed it through, paper scrap is obtained, by paper scrap and water in mass ratio 10:1 ratio is added in rotary drum pulping machine, in rotating speed
For 100r/min, temperature stirs 1h under conditions of being 75 DEG C, obtains secondary stock；Count in parts by weight, successively by 15 parts of secondary stock, build
5~8 parts of 30 parts of land plaster, 5 parts of water, 5 parts of foaming agent, 5 parts of hydrophober, 5 parts of modified starch, 3~5 parts of water-reducing agent and cement is built to add
Enter in continuous mixer, is 300r/min in rotating speed, temperature stirs 2h under conditions of being 65 DEG C, obtains Gypsum slurry；By draw ratio
Polyacrylonitrile crude fibre and Gypsum slurry for 50/80 are 10 in mass ratio:1 is added in blender, is 300r/min in rotating speed,
Temperature stirs 2h under conditions of being 75 DEG C, obtains mixture；Mixture is taped against on molding nylon tape, is equipped with above molding nylon tape
One top surface ribbon conveyer, can make gypsum board surface smooth, adjust top surface ribbon conveyer nylon tape and molding nylon tape
Between gap, the thickness of plank can be adjusted to 10mm；Mixture condensation hardening 3h on molding nylon tape, obtains slab；Again
Slab after slab is manually cut moves into steam-cured kettle, is 1.2MPa in pressure, temperature is 120 DEG C, and steam-cured 2h obtains steam-cured plate
Base；Again steam-cured slab is moved under the conditions of drying machine is 105 DEG C in temperature to dry and be divided to constant weight, then by the slab after drying
Choosing, stacking and packaging are to get multiple dimensioned polyacrylonitrile fibre plasterboard.The waste paper is old newsprint.The building gypsum plaster is
Phosphogypsum powder.The water-reducing agent is naphthalene series high-efficiency water-reducing agent.The cement is portland cement.The hydrophober is hated for organosilicon
Aqua.
Example 3
It takes 2 parts of cornstarch to be added in the inorganic acid solution that 3 parts of mass fractions are 10%, stirs 2h at a temperature of 50 DEG C, obtain mixed
Close liquid；Gained mixed liquor is washed, is then placed in drying machine, dry 2h, obtains solid under conditions of temperature is 105 DEG C
Object；Solids is crushed again, 1 mesh round-hole mesh is crossed, obtains sour modified corn starch；Waste paper is put into shredder and crushes processing,
5 mesh round-hole meshes are smashed it through, paper scrap is obtained, by paper scrap and water in mass ratio 10:1 ratio is added in rotary drum pulping machine, in rotating speed
For 100r/min, temperature stirs 1h under conditions of being 75 DEG C, obtains secondary stock；Count in parts by weight, successively by 15 parts of secondary stock, build
5~8 parts of 30 parts of land plaster, 5 parts of water, 5 parts of foaming agent, 5 parts of hydrophober, 5 parts of modified starch, 3~5 parts of water-reducing agent and cement is built to add
Enter in continuous mixer, is 300r/min in rotating speed, temperature stirs 2h under conditions of being 65 DEG C, obtains Gypsum slurry；By draw ratio
Polyacrylonitrile fine fibre and Gypsum slurry for 19/100 are 10 in mass ratio:1 is added in blender, is 300r/ in rotating speed
Min, temperature stir 2h under conditions of being 75 DEG C, obtain mixture；Mixture is taped against on molding nylon tape, above molding nylon tape
Equipped with a top surface ribbon conveyer, gypsum board surface can be made smooth, adjust top surface ribbon conveyer nylon tape and molding Buddhist nun
Gap between tengential belt can adjust the thickness of plank to 10mm；Mixture condensation hardening 3h on molding nylon tape, obtains plate
Base；Slab after slab is manually cut again moves into steam-cured kettle, is 1.2MPa in pressure, temperature is 120 DEG C, and steam-cured 2h is obtained
Steam-cured slab；Steam-cured slab is moved under the conditions of drying machine is 105 DEG C in temperature again and is dried to constant weight, then by the slab after drying
It is sorted, stacking and packaging are to get multiple dimensioned polyacrylonitrile fibre plasterboard.The waste paper is old newsprint.The paring stone
Cream powder is phosphogypsum powder.The water-reducing agent is naphthalene series high-efficiency water-reducing agent.The cement is portland cement.The hydrophober is to have
Machine silicon hydrophober.
Example 4
It takes 2 parts of cornstarch to be added in the inorganic acid solution that 3 parts of mass fractions are 10%, stirs 2h at a temperature of 50 DEG C, obtain mixed
Close liquid；Gained mixed liquor is washed, is then placed in drying machine, dry 2h, obtains solid under conditions of temperature is 105 DEG C
Object；Solids is crushed again, 1 mesh round-hole mesh is crossed, obtains sour modified corn starch；Waste paper is put into shredder and crushes processing,
5 mesh round-hole meshes are smashed it through, paper scrap is obtained, by paper scrap and water in mass ratio 10:1 ratio is added in rotary drum pulping machine, in rotating speed
For 100r/min, temperature stirs 1h under conditions of being 75 DEG C, obtains secondary stock；Count in parts by weight, successively by 15 parts of secondary stock, build
Build 30 parts of land plaster, 5 parts of water, 5 parts of foaming agent, 3~5 parts of 5 parts of hydrophober, 5 parts of modified starch and water-reducing agent additions continuously stir
It is 300r/min in rotating speed, temperature stirs 2h under conditions of being 65 DEG C, obtains Gypsum slurry in machine；To be 50/80 by draw ratio
The polyacrylonitrile fine fibre in mass ratio 1 that polyacrylonitrile crude fibre and draw ratio are 19/100:1 mixing, obtains multiple dimensioned polypropylene
Nitrile fiber, and be 10 in mass ratio by the multiple dimensioned polyacrylonitrile fibre of gained and Gypsum slurry:1 is added in blender, in rotating speed
For 300r/min, temperature stirs 2h under conditions of being 75 DEG C, obtains mixture；Mixture is taped against on molding nylon tape, Buddhist nun is molded
It is equipped with a top surface ribbon conveyer above tengential belt, gypsum board surface can be made smooth, adjusts top surface ribbon conveyer nylon tape
And the gap between molding nylon tape, the thickness of plank can be adjusted to 10mm；Mixture condenses hardening on molding nylon tape
3h obtains slab；Slab after slab is manually cut again moves into steam-cured kettle, is 1.2MPa in pressure, temperature is 120 DEG C, is steamed
2h is supported, steam-cured slab is obtained；Steam-cured slab is moved under the conditions of drying machine is 105 DEG C in temperature again and is dried to constant weight, then will be dried
Slab afterwards is sorted, and stacking and packaging are to get multiple dimensioned polyacrylonitrile fibre plasterboard.The waste paper is old newsprint.Institute
It is phosphogypsum powder to state building gypsum plaster.The water-reducing agent is naphthalene series high-efficiency water-reducing agent.The hydrophober is organosilicon moisture repellent.
The fibrous plaster of comparative example Beijing building materials company
1 to 4 products obtained therefrom of example and comparative example product are subjected to performance detection, specific detection method is as follows：
Specific testing result is as shown in table 1 below：
Table 1：Plasterboard performance detection table
Obtained by 1 data of table：The multiple dimensioned polyacrylonitrile plasterboard cracking resistance that the present invention develops is more preferable.
Claims (9)
1. a kind of preparation method of multiple dimensioned polyacrylonitrile fibre plasterboard, it is characterised in that specifically preparation process is：
（1）By waste paper after shredder crushes and water by 8:1~10:Rotary drum pulping machine is added in 1 mass ratio, obtains secondary stock；
（2）It counts in parts by weight, by 10~15 parts of secondary stock, 25~30 parts of building gypsum plaster, 20~25 parts of water, foaming agent 3~5
Mixing is equal in part, 3~5 parts of hydrophober, 3~5 parts of modified starch, 3~5 parts of water-reducing agent and 5~8 parts of addition continuous mixers of cement
It is even, Gypsum slurry is made；
（3）It is 10 in mass ratio by Gypsum slurry and multiple dimensioned polyacrylonitrile fibre:1~8:After 1 is stirred, molding obtains plate
Base；
（4）Slab is moved into steam-cured kettle, after pressurized, heated is steam-cured, is discharged, dry, cutting, stacking is to get multiple dimensioned polypropylene
Nitrile fibrous plaster.
2. a kind of preparation method of multiple dimensioned polyacrylonitrile fibre plasterboard according to claim 1, which is characterized in that step
Suddenly（1）The waste paper is any one in old newsprint, useless yellow plate paper or useless corrugated paper.
3. a kind of preparation method of multiple dimensioned polyacrylonitrile fibre plasterboard according to claim 1, which is characterized in that step
Suddenly（1）The building gypsum plaster is any one in phosphogypsum powder, desulfurization gypsum powder, citric acid gypsum powder or fluorine gypsum powder.
4. a kind of preparation method of multiple dimensioned polyacrylonitrile fibre plasterboard according to claim 1, which is characterized in that step
Suddenly（1）The foaming agent is arbitrary in lauryl sodium sulfate, sodium sulfate of polyethenoxy ether of fatty alcohol or α-sodium olefin sulfonate
It is a kind of.
5. a kind of preparation method of multiple dimensioned polyacrylonitrile fibre plasterboard according to claim 1, which is characterized in that step
Suddenly（1）The modified starch is sour modified corn starch.
6. a kind of preparation method of multiple dimensioned polyacrylonitrile fibre plasterboard according to claim 1, which is characterized in that step
Suddenly（1）The water-reducing agent is naphthalene series high-efficiency water-reducing agent, aliphatic high-efficiency water reducing agent, aminosulfonate-based superplasticizer or poly-carboxylic high-performance
Water-reducing agent.
7. a kind of preparation method of multiple dimensioned polyacrylonitrile fibre plasterboard according to claim 1, which is characterized in that step
Suddenly（2）The cement is portland cement, any one in Portland cement or portland-pozzolan cement.
8. a kind of preparation method of multiple dimensioned polyacrylonitrile fibre plasterboard according to claim 1, which is characterized in that step
Suddenly（2）The hydrophober is organosilicon moisture repellent.
9. a kind of preparation method of multiple dimensioned polyacrylonitrile fibre plasterboard according to claim 1, which is characterized in that step
Suddenly（3）The multiple dimensioned polyacrylonitrile fibre be 50/80 by draw ratio polyacrylonitrile crude fibre and draw ratio be 19/100
Polyacrylonitrile fine fibre in mass ratio 1:1 mixes.
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| CN106588084A (en) * | 2016-12-22 | 2017-04-26 | 武汉理工大学 | Lightweight multifunctional assembling type interior wall material and preparation method thereof |
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2018
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106588084A (en) * | 2016-12-22 | 2017-04-26 | 武汉理工大学 | Lightweight multifunctional assembling type interior wall material and preparation method thereof |
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