CN109748527A - A kind of gypsum based drywall material and preparation method thereof - Google Patents
A kind of gypsum based drywall material and preparation method thereof Download PDFInfo
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- CN109748527A CN109748527A CN201910203321.4A CN201910203321A CN109748527A CN 109748527 A CN109748527 A CN 109748527A CN 201910203321 A CN201910203321 A CN 201910203321A CN 109748527 A CN109748527 A CN 109748527A
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- anhydrite
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- ardealite
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Abstract
The invention discloses a kind of gypsum based drywall materials and preparation method thereof, are made of the following raw material of parts by weight: the dedicated rubber powder of 85-89 parts of level-one mixing, 5-6 parts of building glue and 8-12 parts of water；The level-one mixing is mixed by anhydrite cement and high-temperature calcined gypsum according to the ratio of mass percent 97%-99%:1%-3%；Wherein, the anhydrite cement the preparation method comprises the following steps: ardealite is existedLower calcining 20-30min, obtains anhydrite or natural anhydrite, then adds after exciting agent is mixed and finely ground and anhydrite cement is made；High-temperature calcined gypsum the preparation method comprises the following steps: ardealite or natural anhydrite are existed Lower calciningMake part CaS04CaO is decomposited, obtains high-temperature calcined gypsum after levigate.The effect to turn waste into wealth is played, mitigates ardealite and accumulates bring environmental protection pressure.
Description
Technical field
The present invention relates to a kind of gypsum based drywall materials and preparation method thereof, belong to chemical industrial waste object resource utilization field.
Background technique
Ardealite is a kind of industrial by-products of generation during Wet-process phosphoric acid (WPPA), it was reported that 1 ton of phosphoric acid of every production is wanted
The ardealite of 4-5 tons of discharge, and ardealite year discharge capacity is about ten thousand tons of 11000-13000 in the world at present, wherein only a small amount of obtain
Utilization is arrived, some countries such as Japan, Australia have developed many phosphorus due to shortage of land resource, shortage natural gypsum etc.
The utilization rate of the technology of gypsum cycling and reutilization, ardealite is very high.In China, with the development of the chemical industry, the row of ardealite
It is high-volume being constantly increasing, but recovery utilization rate is relatively low, less than 20%, the ardealite around phosphorizing treatment is caused to be accumulated such as
Mountain not only occupies a large amount of land resource, but also also results in and seriously affect to ecological environment.Develop the recycling benefit of ardealite
New way is our problems in urgent need to solve.
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.Such as application No. is 200480022989.0 patent applications, disclose a kind of method for preparing plasterboard, including
Step: calcium sulfate hemihydrate (plaster) being mixed with water, aqueous slurry is made, and non-calcined gypsum is added in slurries, by slurries
It is emitted on carrier, so that forming a plasterboard.
But existing plasterboard (including plasterboard disclosed in the patent application application No. is 200480022989.0)
Only be used to do base treatment, it is subsequent also need to squeegee, brush powder of lacquer putty for use on is levelling, with sand polishing and mopping etc..Operational sequence is complicated.
Since waste phosphogypsum is to water sensitive, performance spring-like can not be compacted after meeting water saturation, and water resistance is very poor, and water is steady
Necessary requirement is but not achieved in performance, thus can not promote and apply.
Summary of the invention
To solve the above-mentioned problems, the first object of the present invention is to provide a kind of gypsum based drywall material, and the second purpose is
This kind of gypsum based drywall material preparation method is provided.
For up to above-mentioned first purpose, the present invention provides a kind of gypsum based drywall materials, which is characterized in that by parts by weight
Following raw material are made: the dedicated rubber powder of 85-89 parts of level-one mixing, 5-6 parts of building glue and 8-16 parts of water；
The level-one mixing is by anhydrite cement and high-temperature calcined gypsum according to mass percent 97%-99%:1%-
3% ratio mixes；
Wherein, the anhydrite cement the preparation method comprises the following steps: ardealite is existedLower calcining 20-
30min, obtains anhydrite or natural anhydrite, and anhydrite cement is made after then adding exciting agent mixing milling；
High-temperature calcined gypsum the preparation method comprises the following steps: ardealite or natural anhydrite are existedLower calciningMake part CaS04CaO is decomposited, obtains high-temperature calcined gypsum after milling.
In above scheme: the amount of the exciting agent is the 0.4%-0.6% of the quality of ardealite.
After waste phosphogypsum calcining, the anhydrous gypsum that exciting agent makes it quickly obtain meeting the requirements intensity and wearability is added
Cement.Waste phosphogypsum is made into part CaS0 by high-temperature calcination4CaO is decomposited, CaO is again with free acid ionic reaction at salt
Class reduces the repelling effect of anion except free phosphoric acid and fluoric acid, further enhances plate compactness to improve intensity.
It adds the dedicated rubber powder of building glue and increases ardealite plasticity, and solve that ardealite is afraid of water, asking intolerant to water-soaked and evacuation
Topic.Waterproof anti-freezing is good.And the plasterboard of the dedicated rubber powder preparation of building glue is added in the present invention, is used for building decoration and fitment
When, it does not need to squeegee again, the complicated procedures of forming such as brush powder of lacquer putty for use on is levelling, polishing and mopping.Make after can reach ordinary gypsum board mopping
It is efficient and environment-friendly with effect.Greatly save many and diverse building process and technology intermission time.It can be with spray on substrate surface layer
It is expected that material (such as: diatom ooze) and high temperature overlay film, so that visual effect is more preferably.
The dedicated rubber powder of building glue is water soluble polymer polymeric resin, rather than the putty rubber powder of Compositional type production, is one
The novel building material binder of kind.The ingredient that the dedicated rubber powder of building glue easily goes mouldy without starch etc. is nontoxic, tasteless, without radiation
Property, it can be dissolved in cold water rapidly, with dissolution is fast, dosage is few, viscosity is high, fast, suspension, moisturizing, anti-mildew, ageing-resistant, preservation at mould
Time is long, easy to use, steady performance.The dedicated rubber powder of building glue is without formaldehyde, dimethylbenzene and organic volatile etc.
To the unfavorable substance of human body.Colloid can be usually dissolved as at normal temperature with water, it is harmless, belong to green product.Cracking resistance
Water resistance is strong, and hardness is high, and good brightness is smooth to the touch soft and moist.It is another selection instead of polyvinyl alcohol glue.
The second object of the present invention is achieved in that a kind of gypsum based drywall material preparation method, which is characterized in that according to
Following steps preparation:
(1), anhydrite cement and high-temperature calcined gypsum are sufficiently mixed and uniformly obtain level-one mixture；
(2), a certain amount of clear water is added in blender, then the dedicated rubber powder of building glue is added into blender, stirring
It is modulated into glue state, level-one mixing is added and stirs evenly, water is finally supplied 8-16 parts is uniformly mixing to obtain second level and mix
Close material；
(3), by obtained second level mixture by mould machine compression moulding, baking is dry to obtain substrate.
In production, by selecting different molds, substrate can be made into fabricated substrate, installation assembly is more held
Easily.
In above scheme: in step (2), the amount for the water being first added is 3-5 times of the amount for the water being eventually adding.
The utility model has the advantages that plate of the present invention using discarded ardealite preparation, intensity with higher, wearability, water resistant
Property and frost resistance, when being used for building decoration and fitment, do not need to squeegee again, the complicated procedures of forming such as brush powder of lacquer putty for use on is levelling, polishing and mopping.
Using effect after can reach ordinary gypsum board mopping, it is efficient and environment-friendly.It greatlys save between many and diverse building process and technology
It has a rest the time.The effect to turn waste into wealth is played, mitigates ardealite and accumulates bring environmental protection pressure.
Specific embodiment
Below with reference to embodiment, the invention will be further described.It should be understood that following embodiment is merely to illustrate the present invention
Range and is not intended to limit the present invention.
Embodiment 1
The preparation of anhydrite cement: calcining 30min at 600 DEG C for ardealite, obtain anhydrite or natural anhydrite,
Then anhydrite cement is made after adding exciting agent mixing milling, (cement mortar being commonly used is equal for exciting agent
Can) amount be ardealite quality 0.6%.
The preparation of high-temperature calcined gypsum: ardealite is calcined into 45min at 800 DEG C, makes part CaS04CaO is decomposited, is ground
High-temperature calcined gypsum is obtained after powder.
Anhydrite cement and high-temperature calcined gypsum are sufficiently mixed according to the ratio of 97%:3% and uniformly obtains level-one and mixes
Close material.
Selection is suitable for the blender just measured, is added 12 parts of clear water in blender according to parts by weight, then to blender
Inside it is slowly added to 6 parts of dedicated rubber powders of building glue (Shanghai Fang Bao building materials Science and Technology Ltd., models are as follows: JDL-3 high glues marine glue
Powder), plastic water state (state of the liquid glue of similar market sale) is stirred and modulated, 89 parts of level-one mixing stirring is added
It is uniformly mixed, the water that finally supplement is added 4 parts is uniformly mixing to obtain second level mixing.
By obtained second level mixture by mould machine compression moulding, baking is dry to obtain substrate.
Embodiment 2
The preparation of anhydrite cement: calcining 20min at 750 DEG C for ardealite, obtain anhydrite or natural anhydrite,
Then anhydrite cement is made after adding exciting agent mixing milling, (cement mortar being commonly used is equal for exciting agent
Can) amount be ardealite quality 0.4%.
The preparation of high-temperature calcined gypsum: by natural anhydrite obtained in anhydrite cement preparation process at 1000 DEG C
30min is calcined, part CaS0 is made4CaO is decomposited, obtains high-temperature calcined gypsum after milling.
Anhydrite cement and high-temperature calcined gypsum are sufficiently mixed according to the ratio of 99%:1% and uniformly obtains level-one and mixes
Close material.
Selection is suitable for the blender just measured, and 6 parts of clear water is added in blender according to parts by weight, then into blender
It is slowly added to 5 parts of dedicated rubber powders of building glue (Shanghai Fang Bao building materials Science and Technology Ltd., models are as follows: JDL-3 high glues marine glue
Powder), plastic water state (state of the liquid glue of similar market sale) is stirred and modulated, 85 parts of level-one mixing stirring is added
It is uniformly mixed, the water that finally supplement is added 2 parts is uniformly mixing to obtain second level mixing.
By obtained second level mixture by mould machine compression moulding, baking is dry to obtain substrate.
Embodiment 3
The preparation of anhydrite cement: calcining 25min at 700 DEG C for ardealite, obtain anhydrite or natural anhydrite,
Then anhydrite cement is made after adding exciting agent mixing milling, (cement mortar being commonly used is equal for exciting agent
Can) amount be ardealite quality 0.5%.
The preparation of high-temperature calcined gypsum: by natural anhydrite obtained in anhydrite cement preparation process at 900 DEG C
40min is calcined, part CaS0 is made4CaO is decomposited, obtains high-temperature calcined gypsum after milling.
Anhydrite cement and high-temperature calcined gypsum are sufficiently mixed according to the ratio of 98%:2% and uniformly obtains level-one and mixes
Close material.
Selection is suitable for the blender just measured, is added 10 parts of clear water in blender according to parts by weight, then to blender
Inside it is slowly added to 5 parts of dedicated rubber powders of building glue (Shanghai Fang Bao building materials Science and Technology Ltd., models are as follows: JDL-3 high glues marine glue
Powder), plastic water state (state of the liquid glue of similar market sale) is stirred and modulated, 86 parts of level-one mixing stirring is added
It is uniformly mixed, the water that finally supplement is added 2 parts is uniformly mixing to obtain second level mixing.
By obtained second level mixture by mould machine compression moulding, baking is dry to obtain substrate.
The present invention is not limited to the above embodiment, it will be understood by those skilled in the art that: do not departing from the present invention
Principle and objective in the case where a variety of change, modification, replacement and modification, the scope of the present invention can be carried out to these embodiments
It is defined by the claims and their equivalents.
Claims (4)
1. a kind of gypsum based drywall material, which is characterized in that be made of the following raw material of parts by weight: 85-89 parts of level-one is mixed
Material, 5-6 parts of the dedicated rubber powder of building glue and 8-16 parts of water；
The level-one mixing is by anhydrite cement and high-temperature calcined gypsum according to mass percent 97%-99%:1%-3%'s
Ratio mixes；
Wherein, the anhydrite cement the preparation method comprises the following steps: ardealite is existedLower calcining 20-30min, obtains
To anhydrite or natural anhydrite, anhydrite cement is made after then adding exciting agent mixing milling；
High-temperature calcined gypsum the preparation method comprises the following steps: ardealite or natural anhydrite are existedLower calciningMake part CaS04CaO is decomposited, obtains high-temperature calcined gypsum after milling.
2. gypsum based drywall material according to claim 1, it is characterised in that: the amount of the exciting agent is the quality of ardealite
0.4%-0.6%.
3. a kind of preparation method of gypsum based drywall material as claimed in claim 1 or 2, which is characterized in that be prepared according to the following steps:
(1), anhydrite cement and high-temperature calcined gypsum are sufficiently mixed and uniformly obtain level-one mixture；
(2), a certain amount of clear water is added in blender, then the dedicated rubber powder of building glue is added into blender, stirs and modulates
Plastic water state adds level-one mixing and stirs evenly, and water is finally supplied 8-16 parts and is uniformly mixing to obtain second level mixture；
(3), by obtained second level mixture by mould machine compression moulding, baking is dry to obtain substrate.
4. the preparation method of gypsum based drywall material according to claim 3, it is characterised in that: in step (2), the water that is first added
Amount be 3-5 times of amount of the water being eventually adding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910203321.4A CN109748527B (en) | 2019-03-18 | 2019-03-18 | Gypsum-based wallboard and preparation method thereof |
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| CN201910203321.4A CN109748527B (en) | 2019-03-18 | 2019-03-18 | Gypsum-based wallboard and preparation method thereof |
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| CN109748527B CN109748527B (en) | 2021-03-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116693321A (en) * | 2023-04-13 | 2023-09-05 | 重庆交通大学 | Preparation method of modified phosphogypsum-based self-leveling mortar |
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| WO2009135687A1 (en) * | 2008-05-09 | 2009-11-12 | Claudius Peters Technologies Gmbh | Method and device for calcinating phosphorous plaster |
| CN104652697A (en) * | 2015-03-08 | 2015-05-27 | 济南大学 | Permanent modified ardealite compound heat-insulating template and manufacturing method thereof |
| CN105669153A (en) * | 2016-01-12 | 2016-06-15 | 贵州腾峰科技有限责任公司 | Gypsum-based pre-mixed mortar and preparation method thereof |
| CN106007621A (en) * | 2016-05-23 | 2016-10-12 | 北新集团建材股份有限公司 | Method for producing gypsum plaster board by mixing desulfurized gypsum and phosphogypsum |
| CN107445524A (en) * | 2017-08-29 | 2017-12-08 | 德阳昊华清平磷矿有限公司 | A kind of reuse method of ardealite |
| CN108558339A (en) * | 2018-04-26 | 2018-09-21 | 贵州开磷磷石膏综合利用有限公司 | A kind of preparation method of autoclaved aerated concrete slab |
| CN109133687A (en) * | 2017-06-28 | 2019-01-04 | 北新集团建材股份有限公司 | Preprocess method and a kind of Thistle board of a kind of ardealite and preparation method thereof |
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2019
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009135687A1 (en) * | 2008-05-09 | 2009-11-12 | Claudius Peters Technologies Gmbh | Method and device for calcinating phosphorous plaster |
| CN104652697A (en) * | 2015-03-08 | 2015-05-27 | 济南大学 | Permanent modified ardealite compound heat-insulating template and manufacturing method thereof |
| CN105669153A (en) * | 2016-01-12 | 2016-06-15 | 贵州腾峰科技有限责任公司 | Gypsum-based pre-mixed mortar and preparation method thereof |
| CN106007621A (en) * | 2016-05-23 | 2016-10-12 | 北新集团建材股份有限公司 | Method for producing gypsum plaster board by mixing desulfurized gypsum and phosphogypsum |
| CN109133687A (en) * | 2017-06-28 | 2019-01-04 | 北新集团建材股份有限公司 | Preprocess method and a kind of Thistle board of a kind of ardealite and preparation method thereof |
| CN107445524A (en) * | 2017-08-29 | 2017-12-08 | 德阳昊华清平磷矿有限公司 | A kind of reuse method of ardealite |
| CN108558339A (en) * | 2018-04-26 | 2018-09-21 | 贵州开磷磷石膏综合利用有限公司 | A kind of preparation method of autoclaved aerated concrete slab |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116693321A (en) * | 2023-04-13 | 2023-09-05 | 重庆交通大学 | Preparation method of modified phosphogypsum-based self-leveling mortar |
| CN116693321B (en) * | 2023-04-13 | 2024-05-10 | 重庆交通大学 | Preparation method of modified phosphogypsum-based self-leveling mortar |
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| CN109748527B (en) | 2021-03-02 |
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Inventor after: Li Bing Inventor after: Chen Feng Inventor before: Li Bing |
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