CN108840645A - A kind of high-strength water-resistance plasterboard and preparation method thereof - Google Patents
A kind of high-strength water-resistance plasterboard and preparation method thereof Download PDFInfo
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- CN108840645A CN108840645A CN201810857676.0A CN201810857676A CN108840645A CN 108840645 A CN108840645 A CN 108840645A CN 201810857676 A CN201810857676 A CN 201810857676A CN 108840645 A CN108840645 A CN 108840645A
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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
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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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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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 high-strength water-resistance plasterboards, are made of modified landplaster, flyash, glass disintegrating slag, cement, defoaming agent, sodium pyrophosphate, borax, lime stone, alum swelling agent, sodium alginate, hydrophober, emulsifier and water.Specific preparation process through the invention, plasterboard obtained has excellent flexural strength and shock resistance, while having good water resistance, can be mass-produced, has broad application prospects.
Description
Technical field
The present invention relates to plasterboard fields, more particularly to high-strength water-resistance plasterboard field.
Background technique
Plasterboard is using building gypsum as a kind of material made of primary raw material.It is that one kind is light-weight, intensity is higher, thick
The construction material for spending the better performances such as relatively thin, easy to process and sound insulation insulation and fire prevention is the novel light of current development emphatically
One of lumber.
Gypsum is taken conveniently, quality-high and inexpensive；After land plaster is mixed with water in proportion, there are good mobility and coagulability
Energy；Model has good water absorbing properties and functions/drying.So Ceramics Enterprises will its as production model main material, use
In the model of production slip casting, rolling and cold moudling.But gypsum also has the shortcomings that its is fatal, the mold strength exactly made is low,
Wear no resistance, be easy breakage, therefore service life is short, needs frequently to replace in production, and consumption is very big, increase the manufacturing at
This.Plaster cast is damaged in actual production and is ceaselessly replaced, and is on the one hand because it is during carrying and installing and using
It needs by multiple overturning, squeeze, hit, to generate arrisdefect, crackle, deformation；It on the other hand is because it makes
Inner surface became coarse vulnerable to abrasion, pitted skin occurred by the corrosion function for wiping mould, mud used time, thus influence half at
The weight of the surface quality of product, outer dimension and green body.It is all low with the intensity of plaster cast related above.As it can be seen that intensity is
Influence the principal element of model quality, service life.With the development of ceramic industry, molding mode develops to mechanization direction,
It to the higher and higher of the intensity requirement of model, therefore improve plaster cast intensity and is put into position more outstanding, become scientific and technical personnel
The project constantly studied.
On the other hand, plasterboard can loosely simultaneously after a period of use in some generation aqueous vapors and moist indoor environment
Fall off so that original moulding damage, destroy it is indoor beautify the environment, also seriously affect people's lives, it is therefore, water-fast
Moisture resistance is low to be also a problem to be solved.
There are some researchs about high strength gypsum plate or water resistant gypsum plate to be reported in succession in the prior art,
If plasterboard have simultaneously it is high-intensitive have both water resistance again, and it is low in cost can plasterboard have not been reported.
Summary of the invention
Present invention aims at for a kind of high-strength water-resistance plasterboard and preparation method thereof, acquisition has both high-intensitive and water-fast
Property plasterboard, have excellent flexural strength and shock resistance, while also have good water resistance, have excellent performance, can
Suitable for a variety of occasions.
High-strength water-resistance plasterboard provided by the invention, is made of the raw material of following parts by weight：
100-200 parts of modified landplaster, 50-80 parts of flyash, glass disintegrating slag 20-40,20-30 parts of cement, defoaming agent 1-2
Part, 5-10 parts of sodium pyrophosphate, 5-10 parts of borax, 10-20 parts of lime stone, 1-10 parts of alum swelling agent, 15-25 parts of sodium alginate,
10-20 parts of hydrophober, 0.2-0.5 parts of emulsifier and 58-118 parts of water.
Further, the modified landplaster is made by following steps：Land plaster is dried at a temperature of 80~90 DEG C,
Temperature be 140~180 DEG C at calcine 1-2h, after being cooled to 50-70 DEG C be added be equivalent to land plaster weight 3-5% sorb it is smooth
The atoleine of monoleate and gypsum part weight 4-8% stir and evenly mix.
Further, the land plaster is by modified landplaster and β land plaster by weight 9:1 mixing composition.
Further, the fineness of land plaster is 100~120 mesh.
Further, the defoaming agent is one or both of waterglass, citric acid.
Further, the hydrophober is organic silicone oil.
Further, the emulsifier is polyvinyl alcohol.
The preparation method of above-mentioned high-strength water-resistance plasterboard provided by the invention, includes the following steps：
(1) raw material is weighed by each weight of material part proportion：
(2) by modified landplaster, flyash, cement, sodium pyrophosphate, borax, lime stone, glass disintegrating slag, sodium alginate, water
It is uniformly mixed, adds defoaming agent, hydrophober and emulsifier and be uniformly mixed to obtain mixture；
(4) mixture obtained by step (3) is stirred into 2~4 minutes progress vacuum at vacuum degree -0.065~-0.079Mpa
Deaeration；
(5) by the mixture after deaeration in a mold compression moulding be placed in 60 DEG C~100 DEG C of environment air-dry, be made
Plasterboard.
Further, the modified landplaster is made by following steps：Land plaster is dried at a temperature of 80~90 DEG C,
Temperature be 140~180 DEG C at calcine 1-2h, after being cooled to 50-70 DEG C be added be equivalent to land plaster weight 3-5% sorb it is smooth
The atoleine of monoleate and gypsum part weight 4-8% stir and evenly mix.
Further, the mixing speed of the stirring is 300-400r/min, and mixing time is 2-4min.
The beneficial effects of the invention are as follows：
(1) plasterboard of the present invention, using glass disintegrating slag reinforced plasterboard intensity, by being aided with modified landplaster, with
And it is added to sodium pyrophosphate, borax, cement and lime stone, obtain the gypsum with excellent flexural strength and shock resistance
Plate, and glass disintegrating slag is low in cost.
(2) in gypsum plate prescription of the present invention, organic silicone oil, polyvinyl alcohol, sodium alginate synergistic effect, so that this hair
Bright plasterboard has good water resistance.
(3) in plasterboard of the present invention, land plaster is obtained and the better compatibility of unclassified stores, mixing by being modified
Plasterboard quality can be made finer and closely woven when compression moulding, and vacuum defoamation has been carried out to mixture, these are conducive to improve stone
Cream plate intensity.
(4) raw material sources of the present invention are extensive, cheap, and preparation process is simple, can be mass-produced, and have industrial application
Value.
Specific embodiment
Embodiment 1
(1) 200kg land plaster is dried at a temperature of 80 DEG C, calcines 1h at being 140 DEG C in temperature, adds after being cooled to 50 DEG C
The atoleine of the sorbitan monooleate and gypsum part weight 4% that enter to be equivalent to land plaster weight 3% stirs and evenly mixs to get changing
Property land plaster.
(2) modified landplaster 100kg, flyash 50kg, glass disintegrating slag 20kg, cement 20kg, waterglass 1kg, coke are weighed
Sodium phosphate 5kg, borax 5kg, lime stone 10kg, alum swelling agent 1kg, sodium alginate 15kg, organic silicone oil 10kg, polyvinyl alcohol
0.2kg and water 58kg.
(3) modified landplaster, flyash, glass disintegrating slag, cement, sodium pyrophosphate, borax and lime stone are added to the water, are used
Blender stirs 4min, is uniformly mixed it, mixing speed 400r/min.
(4) mixing obtained by step (3) is added in waterglass, alum swelling agent, sodium alginate, organic silicone oil and polyvinyl alcohol
Object stirs 4min, mixing speed 300r/min with blender.
(5) mixture obtained by step (4) is put into vacuum degasing machine and carries out vacuum defoamation, vacuum degree is -0.065Mpa.
(6) shaping blank being made in mixture extrusion forming obtained by step (5), demoulding is kept for 24 hours at normal temperature after pouring out,
Hothouse is pushed into again to dry at 35 DEG C to get plasterboard of the present invention.
Embodiment 2
(1) 400kg land plaster is dried at a temperature of 90 DEG C, calcines 2h at being 180 DEG C in temperature, adds after being cooled to 70 DEG C
The atoleine of the sorbitan monooleate and gypsum part weight 8% that enter to be equivalent to land plaster weight 5% stirs and evenly mixs to get changing
Property land plaster.
(2) modified landplaster 200kg, flyash 80kg, glass disintegrating slag 40kg, cement 30kg, waterglass 2kg, coke are weighed
Sodium phosphate 10kg, borax 10kg, lime stone 20kg, alum swelling agent 10kg, sodium alginate 25kg, organic silicone oil 20kg, poly- second
Enol 0.5kg and water 118kg.
(3) modified landplaster, flyash, glass disintegrating slag, cement, sodium pyrophosphate, borax and lime stone are added to the water, are used
Blender stirs 2min, is uniformly mixed it, mixing speed 300r/min.
(4) mixing obtained by step (3) is added in waterglass, alum swelling agent, sodium alginate, organic silicone oil and polyvinyl alcohol
Object stirs 2min, mixing speed 400r/min with blender.
(5) mixture obtained by step (4) is put into vacuum degasing machine and carries out vacuum defoamation, vacuum degree is -0.079Mpa.
(6) shaping blank being made in mixture extrusion forming obtained by step (5), demoulding is kept for 24 hours at normal temperature after pouring out,
Hothouse is pushed into again to dry at 35 DEG C to get plasterboard of the present invention.
Embodiment 3
(1) 200kg land plaster is dried at a temperature of 86 DEG C, 1.5h is calcined at being 155 DEG C in temperature, after being cooled to 60 DEG C
Addition is equivalent to the sorbitan monooleate of land plaster weight 4% and the atoleine of gypsum part weight 6% stir and evenly mix to get
Modified landplaster.
(2) modified landplaster 100kg, flyash 50kg, glass disintegrating slag 20kg, cement 20kg, citric acid 1kg, coke are weighed
Sodium phosphate 5kg, borax 5kg, lime stone 10kg, alum swelling agent 1kg, sodium alginate 15kg, organic silicone oil 10kg, polyvinyl alcohol
0.2kg and water 58kg.
(3) modified landplaster, flyash, glass disintegrating slag, cement, sodium pyrophosphate, borax and lime stone are added to the water, are used
Blender stirs 2min, is uniformly mixed it, mixing speed 400r/min.
(4) mixing obtained by step (3) is added in citric acid, alum swelling agent, sodium alginate, organic silicone oil and polyvinyl alcohol
Object stirs 4min, mixing speed 300r/min with blender.
(5) mixture obtained by step (4) is put into vacuum degasing machine and carries out vacuum defoamation, vacuum degree is -0.065Mpa.
(6) shaping blank being made in mixture extrusion forming obtained by step (5), demoulding is kept for 24 hours at normal temperature after pouring out,
Hothouse is pushed into again to dry at 35 DEG C to get plasterboard of the present invention.
Embodiment 4
(1) 300kg land plaster is dried at a temperature of 86 DEG C, 1.5h is calcined at being 155 DEG C in temperature, after being cooled to 60 DEG C
Addition is equivalent to the sorbitan monooleate of land plaster weight 4% and the atoleine of gypsum part weight 6% stir and evenly mix to get
Modified landplaster.
(2) modified landplaster 200kg, flyash 80kg, glass disintegrating slag 40kg, cement 30kg, citric acid 2kg, coke are weighed
Sodium phosphate 10kg, borax 10kg, lime stone 20kg, alum swelling agent 10kg, sodium alginate 25kg, organic silicone oil 20kg, poly- second
Enol 0.5kg and water 118kg.
(3) modified landplaster, flyash, glass disintegrating slag, cement, sodium pyrophosphate, borax and lime stone are added to the water, are used
Blender stirs 4min, is uniformly mixed it, mixing speed 300r/min.
(4) mixing obtained by step (3) is added in citric acid, alum swelling agent, sodium alginate, organic silicone oil and polyvinyl alcohol
Object stirs 2min, mixing speed 400r/min with blender.
(5) mixture obtained by step (4) is put into vacuum degasing machine and carries out vacuum defoamation, vacuum degree is -0.079Mpa.
(6) shaping blank being made in mixture extrusion forming obtained by step (5), demoulding is kept for 24 hours at normal temperature after pouring out,
Hothouse is pushed into again to dry at 35 DEG C to get plasterboard of the present invention.
Embodiment 5
(1) 250kg land plaster is dried at a temperature of 90 DEG C, calcines 2h at being 180 DEG C in temperature, adds after being cooled to 70 DEG C
The atoleine of the sorbitan monooleate and gypsum part weight 8% that enter to be equivalent to land plaster weight 5% stirs and evenly mixs to get changing
Property land plaster.
(2) modified landplaster 150kg, flyash 70kg, glass disintegrating slag 30kg, cement 25kg, waterglass 1kg, coke are weighed
Sodium phosphate 5kg, borax 8kg, lime stone 18kg, alum swelling agent 5kg, sodium alginate 20kg, organic silicone oil 14kg, polyvinyl alcohol
0.3kg and water 88kg.
(3) modified landplaster, flyash, glass disintegrating slag, cement, sodium pyrophosphate, borax and lime stone are added to the water, are used
Blender stirs 2min, is uniformly mixed it, mixing speed 300r/min.
(4) mixing obtained by step (3) is added in waterglass, alum swelling agent, sodium alginate, organic silicone oil and polyvinyl alcohol
Object stirs 2min, mixing speed 400r/min with blender.
(5) mixture obtained by step (4) is put into vacuum degasing machine and carries out vacuum defoamation, vacuum degree is -0.079Mpa.
(6) shaping blank being made in mixture extrusion forming obtained by step (5), demoulding is kept for 24 hours at normal temperature after pouring out,
Hothouse is pushed into again to dry at 35 DEG C to get plasterboard of the present invention.
Embodiment 6
(1) 200kg land plaster is dried at a temperature of 85 DEG C, calcines 1h at being 150 DEG C in temperature, adds after being cooled to 60 DEG C
The atoleine of the sorbitan monooleate and gypsum part weight 7% that enter to be equivalent to land plaster weight 4% stirs and evenly mixs to get changing
Property land plaster.
(2) weigh modified landplaster 100kg, flyash 50kg, glass disintegrating slag 20kg, cement 20kg, waterglass 0.5kg,
Citric acid 0.5kg, sodium pyrophosphate 5kg, borax 5kg, lime stone 10kg, alum swelling agent 6kg, sodium alginate 16kg, organosilicon
Oily 10kg, polyvinyl alcohol 0.2kg and water 58kg.
(3) modified landplaster, flyash, glass disintegrating slag, cement, sodium pyrophosphate, borax and lime stone are added to the water, are used
Blender stirs 4min, is uniformly mixed it, mixing speed 400r/min.
(4) step (3) are added in waterglass, citric acid, alum swelling agent, sodium alginate, organic silicone oil and polyvinyl alcohol
Gained mixture stirs 4min, mixing speed 300r/min with blender.
(5) mixture obtained by step (4) is put into vacuum degasing machine and carries out vacuum defoamation, vacuum degree is -0.065Mpa.
(6) shaping blank being made in mixture extrusion forming obtained by step (5), demoulding is kept for 24 hours at normal temperature after pouring out,
Hothouse is pushed into again to dry at 35 DEG C to get plasterboard of the present invention.
Embodiment 7
(1) 200kg land plaster is dried at a temperature of 85 DEG C, calcines 1h at being 150 DEG C in temperature, adds after being cooled to 60 DEG C
The atoleine of the sorbitan monooleate and gypsum part weight 7% that enter to be equivalent to land plaster weight 4% stirs and evenly mixs to get changing
Property land plaster.
(2) modified landplaster 167kg, flyash 70kg, glass disintegrating slag 35kg, cement 25kg, waterglass 1kg, coke are weighed
Sodium phosphate 5kg, borax 8kg, lime stone 18kg, alum swelling agent 7kg, sodium alginate 22kg, organic silicone oil 14kg, polyvinyl alcohol
0.3kg and water 98kg.
(3) modified landplaster, flyash, glass disintegrating slag, cement, sodium pyrophosphate, borax and lime stone are added to the water, are used
Blender stirs 2min, is uniformly mixed it, mixing speed 300r/min.
(4) mixing obtained by step (3) is added in waterglass, alum swelling agent, sodium alginate, organic silicone oil and polyvinyl alcohol
Object stirs 2min, mixing speed 400r/min with blender.
(5) mixture obtained by step (4) is put into vacuum degasing machine and carries out vacuum defoamation, vacuum degree is -0.079Mpa.
(6) shaping blank being made in mixture extrusion forming obtained by step (5), demoulding is kept for 24 hours at normal temperature after pouring out,
Hothouse is pushed into again to dry at 35 DEG C to get plasterboard of the present invention.
Embodiment 8
(1) 200kg land plaster is dried at a temperature of 85 DEG C, calcines 1h at being 150 DEG C in temperature, adds after being cooled to 60 DEG C
The atoleine of the sorbitan monooleate and gypsum part weight 7% that enter to be equivalent to land plaster weight 4% stirs and evenly mixs to get changing
Property land plaster.
(2) modified landplaster 167kg, flyash 70kg, glass disintegrating slag 30kg, cement 25kg, citric acid 1kg, coke are weighed
Sodium phosphate 5kg, borax 8kg, lime stone 18kg, alum swelling agent 5kg, sodium alginate 20kg, organic silicone oil 14kg, polyvinyl alcohol
0.3kg and water 98kg.
(3) modified landplaster, flyash, glass disintegrating slag, cement, sodium pyrophosphate, borax and lime stone are added to the water, are used
Blender stirs 2min, is uniformly mixed it, mixing speed 300r/min.
(4) mixing obtained by step (3) is added in citric acid, alum swelling agent, sodium alginate, organic silicone oil and polyvinyl alcohol
Object stirs 2min, mixing speed 400r/min with blender.
(5) mixture obtained by step (4) is put into vacuum degasing machine and carries out vacuum defoamation, vacuum degree is -0.079Mpa.
(6) shaping blank being made in mixture extrusion forming obtained by step (5), demoulding is kept for 24 hours at normal temperature after pouring out,
Hothouse is pushed into again to dry at 35 DEG C to get plasterboard of the present invention.
Embodiment 9
(1) 200kg land plaster is dried at a temperature of 85 DEG C, calcines 1h at being 150 DEG C in temperature, adds after being cooled to 60 DEG C
The atoleine of the sorbitan monooleate and gypsum part weight 7% that enter to be equivalent to land plaster weight 4% stirs and evenly mixs to get changing
Property land plaster.
(2) modified landplaster 167kg, flyash 70kg, glass disintegrating slag 35kg, cement 25kg, waterglass 1kg, coke are weighed
Sodium phosphate 5kg, borax 8kg, lime stone 18kg, alum swelling agent 5kg, sodium alginate 18kg, organic silicone oil 14kg, polyvinyl alcohol
0.3kg and water 98kg.
(3) modified landplaster, flyash, glass disintegrating slag, cement, sodium pyrophosphate, borax and lime stone are added to the water, are used
Blender stirs 2min, is uniformly mixed it, mixing speed 300r/min.
(4) mixing obtained by step (3) is added in waterglass, alum swelling agent, sodium alginate, organic silicone oil and polyvinyl alcohol
Object stirs 2min, mixing speed 400r/min with blender.
(5) mixture obtained by step (4) is put into vacuum degasing machine and carries out vacuum defoamation, vacuum degree is -0.079Mpa.
(6) shaping blank being made in mixture extrusion forming obtained by step (5), demoulding is kept for 24 hours at normal temperature after pouring out,
Hothouse is pushed into again to dry at 35 DEG C to get plasterboard of the present invention.
Embodiment 10
(1) 200kg land plaster is dried at a temperature of 85 DEG C, calcines 1h at being 150 DEG C in temperature, adds after being cooled to 60 DEG C
The atoleine of the sorbitan monooleate and gypsum part weight 7% that enter to be equivalent to land plaster weight 4% stirs and evenly mixs to get changing
Property land plaster.
(2) modified landplaster 167kg, flyash 80kg, glass disintegrating slag 40kg, cement 30kg, waterglass 2kg, coke are weighed
Sodium phosphate 10kg, borax 10kg, lime stone 20kg, alum swelling agent 8kg, sodium alginate 25kg, organic silicone oil 20kg, polyethylene
Alcohol 0.5kg and water 118kg.
(3) modified landplaster, flyash, glass disintegrating slag, cement, sodium pyrophosphate, borax and lime stone are added to the water, are used
Blender stirs 2min, is uniformly mixed it, mixing speed 300r/min.
(4) mixing obtained by step (3) is added in waterglass, alum swelling agent, sodium alginate, organic silicone oil and polyvinyl alcohol
Object stirs 2min, mixing speed 400r/min with blender.
(5) mixture obtained by step (4) is put into vacuum degasing machine and carries out vacuum defoamation, vacuum degree is -0.079Mpa.
(6) shaping blank being made in mixture extrusion forming obtained by step (5), demoulding is kept for 24 hours at normal temperature after pouring out,
Hothouse is pushed into again to dry at 35 DEG C to get plasterboard of the present invention.
Embodiment 11
The resulting plasterboard of embodiment 1-10 is tested for the property, strength character method for measuring is according to GB/T
17669.3-1999 tests.
The water absorption rate test method of plasterboard：
Instrument and material：Plasterboard obtained by aforementioned 10 embodiments, electronic scale one, minute book.
Water absorption rate calculation formula=(weight before weight-plasterboard soaks after plasterboard immersion) preceding weight of ÷ immersion ×
100%.
Test method：
(1) 10 block gypsum plates weighed respectively, write serial number, record the weight of every block gypsum plate.
(2) pond is filled into water, plasterboard is sequentially placed into water, and pushed down respectively with stone, taken out after 2h, successively claim
Weight after recording every block gypsum plate water suction again.
(3) it is calculated from the formula the water absorption rate of every block gypsum plate.Test result is shown in Tables 1 and 2.
1 panel strength the performance test results of table
| Flexural strength (Mpa) | Compression strength (Mpa) | |
| Embodiment 1 | 7.8 | 13.5 |
| Embodiment 2 | 8.8 | 12.3 |
| Embodiment 3 | 9.1 | 14.6 |
| Embodiment 4 | 9.0 | 14.8 |
| Embodiment 5 | 6.9 | 10.4 |
| Embodiment 6 | 7.0 | 10.0 |
| Embodiment 7 | 8.5 | 11.3 |
| Embodiment 8 | 9.7 | 16.2 |
| Embodiment 9 | 9.3 | 15.5 |
| Embodiment 10 | 8.7 | 15.0 |
2 plasterboard water resistance test result of table
There is above-mentioned test data it is found that plasterboard flexural strength produced by the present invention and compression strength are preferable, wherein implement
Example 3, embodiment 4, embodiment 8 and embodiment 9 flexural strength reach 9Mpa or more, embodiment 9, embodiment 7 and embodiment
10 compression strength reaches 15Mpa or more, illustrates that plasterboard made from these embodiments has high intensity.As shown in Table 2, originally
It is preferable to invent plasterboard water resistance obtained, embodiment 1, embodiment 2,4 embodiment 5 of embodiment, embodiment 6 and embodiment 9
Water absorption rate all only have 5% hereinafter, illustrate plasterboard made from these embodiments have good water resistance.In general,
Plasterboard comprehensive performance made from embodiment 9 is best.
In conclusion raw material sources of the present invention are extensive, low in cost, preparation process is simple, can be mass-produced, and has good
Good industrial popularization and application value and economic value.
Even more noteworthy, plasterboard of the invention is by being reasonably formulated, in cream water weight ratio specific
1.7:It is synergistic by specific preparation process by using modified landplaster under 1 proportion, so that plasterboard obtained
While with excellent flexural strength and shock resistance, also there is good water resistance.Plasterboard has both high-intensitive and resistance to
It is aqueous, more occasions can be suitable for, have a vast market application prospect.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright description is applied directly or indirectly in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (10)
1. a kind of high-strength water-resistance plasterboard, which is characterized in that be made of the raw material of following parts by weight：
100-200 parts of modified landplaster, 50-80 parts of flyash, glass disintegrating slag 20-40,20-30 parts of cement, 1-2 parts of defoaming agent,
5-10 parts of sodium pyrophosphate, 5-10 parts of borax, 10-20 parts of lime stone, 1-10 parts of alum swelling agent, 15-25 parts of sodium alginate, hydrophobic
10-20 parts of agent, 0.2-0.5 parts of emulsifier and 58-118 parts of water.
2. high-strength water-resistance plasterboard according to claim 1, which is characterized in that the modified landplaster passes through following steps
It is made：Land plaster is dried at a temperature of 80~90 DEG C, 1-2h is calcined at being 140~180 DEG C in temperature, is cooled to 50-70 DEG C
The atoleine stirring that the sorbitan monooleate and gypsum part weight 4-8% that are equivalent to land plaster weight 3-5% are added afterwards is mixed
It is even.
3. high-strength water-resistance plasterboard according to claim 1 or claim 2, which is characterized in that the land plaster is by modified gypsum
Powder and β land plaster are by weight 9:1 mixing composition.
4. according to high-strength water-resistance plasterboard described in claim 3, which is characterized in that the fineness of land plaster is 100~120 mesh.
5. high-strength water-resistance plasterboard according to claim 1 or claim 2, which is characterized in that the defoaming agent is waterglass, lemon
One or both of acid.
6. high-strength water-resistance plasterboard according to claim 1 or claim 2, which is characterized in that the hydrophober is organic silicone oil.
7. high-strength water-resistance plasterboard according to claim 1 or claim 2, which is characterized in that the emulsifier is polyvinyl alcohol.
8. a kind of preparation method of the high-strength water-resistance plasterboard as described in any one of claim 1-7, it is characterised in that including
The following steps：
(1) raw material is weighed by each weight of material part proportion：100-200 parts of modified landplaster, 50-80 parts of flyash, glass disintegrating slag
20-40,20-30 parts of cement, 1-2 parts of defoaming agent, 5-10 parts of sodium pyrophosphate, 5-10 parts of borax, 10-20 parts of lime stone, alum are swollen
Swollen dose 1-10 parts, 15-25 parts of sodium alginate, 10-20 parts of hydrophober, 0.2-0.5 parts of emulsifier and 58-118 parts of water；
(2) modified landplaster, flyash, cement, sodium pyrophosphate, borax, lime stone, glass disintegrating slag, sodium alginate, water are mixed
Uniformly, defoaming agent, hydrophober and emulsifier are added and is uniformly mixed to obtain mixture；
(4) mixture obtained by step (3) 2~4 minutes progress vacuum are stirred to take off at vacuum degree -0.065~-0.079Mpa
Bubble；
(5) by the mixture after deaeration, compression moulding is placed in 60 DEG C~100 DEG C of environment air-dried, obtained gypsum in a mold
Plate.
9. the preparation method of high-strength water-resistance plasterboard according to claim 8, which is characterized in that the modified landplaster is logical
Following steps are crossed to be made：Land plaster is dried at a temperature of 80~90 DEG C, calcines 1-2h at being 140~180 DEG C in temperature, it is cooling
The liquid stone of the sorbitan monooleate and gypsum part weight 4-8% that are equivalent to land plaster weight 3-5% is added after to 50-70 DEG C
Wax stirs and evenly mixs.
10. the preparation method of high-strength water-resistance plasterboard according to claim 8, which is characterized in that the stirring of the stirring
Speed is 300-400r/min, and mixing time is 2-4min.
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