CN101219881A - Phosphogypsum composite material - Google Patents
Phosphogypsum composite material Download PDFInfo
- Publication number
- CN101219881A CN101219881A CNA2007100656025A CN200710065602A CN101219881A CN 101219881 A CN101219881 A CN 101219881A CN A2007100656025 A CNA2007100656025 A CN A2007100656025A CN 200710065602 A CN200710065602 A CN 200710065602A CN 101219881 A CN101219881 A CN 101219881A
- Authority
- CN
- China
- Prior art keywords
- phosphogypsum
- urea
- formaldehyde resin
- composite material
- formaldehyde
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/2038—Resistance against physical degradation
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/52—Sound-insulating materials
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- 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)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to a phosphogypsum composite. Phosphogypsum and urea formaldehyde resin are used as main materials and phenolic resin, walnut shells, polyacrylamide and fly ash as auxiliary materials; the materials are mixed, stirred, processed according to the required processes (molding, pouring, extruding, winding, etc.) of the products, and formed at room temperature or thermoformed. The phosphogypsum composite is simple and feasible in manufacture, low in cost and energy saving; in addition, the composite has high product strength, good weather resistance, water resistance, fireproof, and light weight, with certain effects of temperature preservation and sound insulation; the release amount of formaldehyde is low, which can reach the national standard of E1; with good compound properties, the invention can be compound with organic and inorganic fibers as well as organic and inorganic light materials. The phosphogypsum composite can be used as construction material as well as furniture, artworks and packing materials, with wide application. The phosphogypsum is waste material generated during the industrial production of phosphate and phosphate fertilizer, belonging to dangerous solid waste; the invention finds out a new path for the application of phosphogypsum.
Description
1. technical field:
The present invention is a kind of phosphogypsum composite material, belongs to building, material field.
2. background technology:
2.1 phosphogypsum is the waste material that produces in industrial production phosphoric acid, the phosphate fertilizer process, belongs to dangerous solid waste.About 200,000,000 tons of the annual discharging in the whole world.The annual discharging of China surpasses 2,000 ten thousand tons, and that has stacked has more than 100,000,000 ton approximately.The quantity discharged of whole world phosphogypsum has surpassed the produced quantity of the plaster of paris, and the phosphogypsum quantity discharged of China has reached 3 times of plaster of paris produced quantity.
Phosphogypsum can utilization of waste material, is an industrial problem but utilize phosphogypsum, and the utilization to phosphogypsum now mainly contains several technology:
1. produce producing sulfuric acid and jointly cement
2. as cement setting retarder
3. produce the gypsum for building powder
4. as poor efficiency fertilizer
But above technology, common complex process, cost height.The country that abroad has is because of the gypsum resource scarcity, and what have considers to have to for it for environmental protection, is difficult to realize in China.
The ardealite instead plaster of paris is used as gypsum building material,, can delay the set time of plaster of Paris, reduce the final strength of plaster of Paris because of containing impurity such as phosphide, fluorochemical, silicide, sulfide in the phosphogypsum.When so developed countries such as moral, English, method, day are gypsum for building with phosphogypsum production, all adopt usually in water extraction, hydraulic classification and the lime and etc. measure remove impurity.The lime neutralization often needs technologies such as slurrying dehydration.The water extraction process is fairly simple, is the method for the most generally using, but obtains 1 ton of gypsum for building, will consume 6 tons of water, has brought the problem of the sewage disposal of phosphorous, fluorine again, the water resources in china scarcity, and this technology is difficult to realize in China.
Developing a circular economy and carrying out under the policy drive of wall reform, China develops materials for wall with phosphogypsum in a lot of places.Its technology is: do not remove impurity, directly phosphogypsum is sintered into β-semi-hydrated gypsum powder.Pour into holllow building block or batten then; Or the replacement plaster of paris, as the raw material of Thistle board.This simple process, its material of construction of producing does not reach the building materials of gypsum national standard.
The phosphogypsum that the present invention uses can be the phosphogypsum (2 water gypsum) of factory's discharging, also can be that calcining is β-semi-hydrated gypsum and alpha-semi water plaster stone.
2.2 urea-formaldehyde resin is a kind of high molecular polymer, because abundant raw material is cheap, lumber fibre is had adhesive power, has cohesive strength preferably, does wood-based plate (glued board, core-board, shaving board so be mainly used in.MDF etc.) tackiness agent can be made molding powder, circuit card, electric parts, tableware, sanitary equipment and daily necessities etc., also is used for paper process, fiber treatment, coating, imitates aspects such as chemical fertilizer late.Report as gypsum reinforcing agent is also arranged, be the plaster of paris but strengthen object, and will add the normally used solidifying agent of urea-formaldehyde resin.Test the results that draw in a large number according to the applicant: the plaster of paris+urea-formaldehyde resin+solidifying agent, to solidify slowly, first intensity is low, the composite gypsum material poor water resistance of formation, especially not anti-boiling water.
Urea-formaldehyde resin has two main drawbacks: weather resisteant, poor water resistance and Diazolidinyl Urea often need modification just can reach service requirements.What the present invention used is the urea-formaldehyde resin glue, comprises modified urea-formaldehyde resin glue liquid.
2.3 say so Rock Phosphate (72Min BPL) and sulfuric acid reaction that phosphogypsum is definite, the surplus materials behind the extraction phosphoric acid.Component is comparatively complicated in the phosphogypsum: except that the calcium sulfate that accounts for about 90%, also contain the impurity about 10%, comprise the small charcoal particle of the intact ore powder of phosphoric acid and phosphide, sulfuric acid and sulfide, hydrofluoric acid and fluorochemical, silicide and wilkinite, MgO, rare earth and unreacted, organism generation etc.Comprise AlPO in the phosphide
4Comprise Al in the sulfide
2(SO
4) and sulfurous acid (hydrogen) sodium etc.Discover that through the applicant these materials all are the materials that can produce modifying function to urea-formaldehyde resin.As AlPO
4, Al
2(SO
4) be the linking agent of urea-formaldehyde resin, mix the degree of crosslinking that can improve urea-formaldehyde resin with urea-formaldehyde resin, thereby improve its intensity.Fluorochemicals such as HF can with urea-formaldehyde resin chemical combination, thereby improve thermostability, chemical stability, fastness to rubbing, uvioresistant and the weathering resistance of urea-formaldehyde resin.Wilkinite, MgO, charcoal particle can improve the water tolerance and the ageing resistance of urea-formaldehyde resin.Wilkinite, vitriol, rare earth can be caught the free formaldehyde in the urea-formaldehyde resin, and phosphoric acid salt can also improve the fire resistance of material.
About the phosphogypsum PH 1.5-2.5 of factory discharging, be acid, and can make the urea-formaldehyde resin fast setting after urea-formaldehyde resin mixes.
The applicant discovers, contains active group acid amides (CONH in the urea-formaldehyde resin
2), energy and CaSO
4.2H
2O forms hydrogen bond, produces very strong adsorption, thereby effectively improves and guaranteed the bonding strength of urea-formaldehyde resin to phosphogypsum.
Because there are complementary relation in rock phosphate powder and vitriolic product (comprising phosphogypsum) to urea-formaldehyde resin, and also there is proximate effect in melamine urea-formaldehyde resin, so the applicant has proposed an application for a patent for invention on July 6th, 2003: denomination of invention: a kind of imitated wood material and production method, application number: 03126954.0, summary of the invention is: utilize rock phosphate powder and sulfuric acid take place to produce resultant behind the chemical reaction as the properties-correcting agent of urea-formaldehyde resin or terpolycyantoamino-formaldehyde resin, solidifying agent and filler mix forming a kind of room temperature fast-curing with it, water-fast, do not fire, ageing-resistant, resistance to deformation, the thermosetting material that has excellent abrasive and have better intensity." process of Wet-process phosphoric acid (WPPA) in the phosphatization industry utilizes Rock Phosphate (72Min BPL) and sulfuric acid to carry out chemical reaction exactly, generates and extract the process of phosphoric acid in wherein proposition.After extracting phosphoric acid, can produce the phosphogypsum of compounds such as containing part phosphoric acid and silicon, fluorine in a large number.If these phosphogypsums are not utilized and discard, can pollute environment.If these resistatess do not carry out special environmental protection treatment, pH value still can be 1.5-2 usually.And these conditions just in time are fit to production method of the present invention, and can make full use of.That is to say, directly mix, obtain above-mentioned materials of the present invention easily with urea-formaldehyde resin with above-mentioned phosphogypsum.For the utilization of phosphogypsum opens up a new way.”
At phosphogypsum in the summary of the invention of above-mentioned patent application be: the mixture of phosphogypsum and urea-formaldehyde resin forms a kind of thermoplastic material under the situation that does not add other solidifying agent.Can add organic or inorganic filamentary material, light material etc. therein, thereby form a kind of imitated wood material.
Its advance is:
A. under the condition of not doing any impurity and purification, use phosphogypsum, use it for material of construction.And the intensity height, be common natural plaster of Paris 8-10 doubly.
According to Yunnan Province's product quality supervision and testing institute phosphogypsum composite material test report data and pinus yunnanensis (timber) are done intensity relatively:
| Pinus yunnanensis | The phosphogypsum imitated wood material | |
| Compression stress | Rift grain is pressed and pressure-bearing 100kg/cm 2 | 252kg/cm 2 |
| Tensile stress | Rift grain tension 65kg/cm 2 | 97kg/cm 2 |
| Shearing stress | Rift grain is cut 11kg/cm 2 | 1790kg/cm 2 |
B. the chemical substance that makes full use of in the phosphogypsum is carried out modification to urea-formaldehyde resin.Make the matrix material of phosphogypsum and urea-formaldehyde resin have good weatherability, water tolerance is strong, and excellent characteristic such as anti-boiling water.
When C. urea-formaldehyde resin is as the tackiness agent of timber, be proof strength, when adding solidifying agent, need hot-press solidifying.In phosphogypsum and the urea-formaldehyde resin system, need not add other solidifying agent again, simultaneously can be at room temperature fast curing-formed as common gypsum.
D. above key element makes imitated wood material production technique of the present invention simple, and saves the energy, and cost is low.
E. expanded the range of application of phosphogypsum and urea-formaldehyde resin.
But also there are shortcoming in above-mentioned phosphogypsum and urea-formaldehyde resin system: formaldehyde pollutes, especially in curing and drying course.In environment protection, the susceptibility in view of PARA FORMALDEHYDE PRILLS(91,95) discharges will threaten the practicality of this material, therefore must be improved.
In addition, in view of the moiety of phosphogypsum can also produce useful chemical reaction with some polymkeric substance or the compound except that urea-formaldehyde resin, in phosphogypsum and urea-formaldehyde resin system, add the problem that these compounds not only can effectively solve burst size of methanal, can improve the comprehensive strength of phosphogypsum composite material simultaneously a step, improve its use properties.For enlarging use range, adapt to the demand of market to the different levels product, find these can utilize material, applicant's foregoing invention is improved, also be necessary.
3. summary of the invention:
Adopt following new solution, the burst size of methanal and the enhanced that solve phosphogypsum and urea-formaldehyde resin system need, and form phosphogypsum composite material jointly.
3.1 phosphogypsum and urea-formaldehyde resin and an amount of resol mix.
CaSO in the phosphogypsum
4The chemical ingredients of content and impurity such as phosphorus, fluorine, silicon is different because of Rock Phosphate (72Min BPL).And the different chemical ingredients of phosphorus ore is different with the position, ore deposit because of the ore place of production.The variation of phosphogypsum chemical ingredients, the variation of pH value directly has influence on the set time of phosphogypsum and urea-formaldehyde resin mixture and the material character after the curing.So the component ratio of phosphogypsum and urea-formaldehyde resin does not have fixed component ratio standard, can regulate and control according to component component difference, product performance and production technique needs.In general, the phosphogypsum of factory's discharging and urea-formaldehyde resin all can make urea-formaldehyde resin solidify by 1: 10 component ratio (mass parts), just time length.Phosphogypsum content is many, solidifies very fast relatively.In the phosphogypsum composite material,, reduce cost for increasing toughness, or weight reduction, often need to add organic or inorganic fiber, organic or inorganic light material and other fillers, so the solid-to-liquid ratio of phosphogypsum and urea-formaldehyde resin glue also is to need to regulate.Regulate the component ratio of phosphogypsum and urea-formaldehyde resin, also be related to the intensity and the cost of matrix material.Usually its scope is 1: 4-4: between 1.
The general resin that is formed by phenolic compound and aldehyde compound polycondensation is called resol.The phenolic compound can be to the urea-formaldehyde resin modification.Resol can carry out modification to other tackiness agent, and itself also is easy to modification, the MgO in the phosphogypsum, SiO
2, composition such as CaO can make phenolic resin modifiedly, both can increase the curing percentage of resin, can reduce cost greatly again.Phenolic compound or resol make the urea-formaldehyde resin modification, and 3 kinds of methods are generally arranged: the one, and mixed and modified with resol and urea-formaldehyde resin; The 2nd, in alkaline medium, carry out the methylol reaction at urea and formaldehyde, promptly react and add phenol mid-term and carry out reaction modifying, or the reaction later stage adds with the 3rd batch of urea and carries out modification; The 3rd, after the oligopolymer of synthetic respectively phenolic aldehyde and urea-formaldehyde resin, carry out modification by the method for blend copolycondensation again.
Resol has big content with the ratio of urea-formaldehyde resin component.Can be according to the quality product requirement, cost factor, combined factors such as set time are selected.Consider cost factor, generally do not surpass 40%.
Phosphogypsum, add resol in the urea-formaldehyde resin after its characteristic be:
(1) formaldehyde discharges greatly and reduces, and especially obviously reduces in solidification process.
Thermal peak improves when (2) making material cured, and curing speed is accelerated.
(3) increased intensity.Phosphogypsum, urea-formaldehyde resin, the common matrix material that forms of resol improves more than 30% than the material comprehensive strength of phosphogypsum and urea-formaldehyde resin formation.
3.2 mixing with nut-shell, phosphogypsum, urea-formaldehyde resin form phosphogypsum composite material.
Nut-shell is the waste material after the walnut deep processing, now only is used for making gac or being used as fuel.
The tannin that contains 1.3-3% in the walnut shell flour, pH value 4.6 can react crosslinking curing with the free formaldehyde in the urea-formaldehyde resin.Tannin essence is the polyphenol derivative, and under acidic conditions, polyphenol energy and formaldehyde reaction generate crystalline compounds.Walnut shell flour can produce chemical reaction with phosphogypsum, improves the hydration rate of β-semi-hydrated gypsum, shortens set time, has improved intensity.Nut-shell is cheap, and intensity is good.
Phosphogypsum composite material adds walnut shell flour, has improved more than 20% than phosphogypsum and urea-formaldehyde materials intensity, and formaldehyde discharges obviously and reduces in solidification process, has reduced topsoil.
When walnut shell flour is broken into the powder use, also can add nut-shell fragment, compound becoming a useful person simultaneously.
Add-on has bigger latitude, can control according to the product performance needs.
3.3 add polyacrylamide in phosphogypsum and urea-formaldehyde materials or phosphogypsum, urea-formaldehyde resin, phenolic resin material.
Polyacrylamide is a kind of high molecular weight water soluble polymer.Have the side group-amido identical with the acrylamide unit number on the polyacrylamide molecular chain, amido has high polarity, easily forms hydrogen bond and high reaction activity.Amido very easily forms hydrogen bond with the material (natural fiber, mineral etc.) of water and containing-OH group, produces very strong adsorption.Formaldehyde and polyacrylamide generate hydroxymethyl polyacrylamide, and obtain higher methylolation degree under acidic conditions, in sour environment, can form cross-linked network under the effect of aldehyde.Polyacrylamide also can with the CaSO in the phosphogypsum
4.2 (H
2O) produce very strong adsorption.Therefore polyacrylamide has good water-soluble, thickening property, flocculence and chemical reactivity.Therefore in tradition is used, become the trapping agent of formaldehyde, also become paper strengthening agent.
The crystalline structure of China's phosphogypsum mostly is flats, with after urea-formaldehyde resin mixes, in the solidification process that leaves standstill, settlement action can occur, makes material structure inhomogeneous, and the adding of polyacrylamide can change this situation.
Polyacrylamide can be to urea-formaldehyde resin, resol and phosphogypsum, and nut-shell produces chemical reaction, and phosphogypsum composite material is produced enhancement, reduces formaldehyde and discharges, and increases compound ability, effects such as anti-settling.
The add-on of polyacrylamide can be adjusted according to product processes and performance need.
3.4 by both at home and abroad to the prior art of urea-formaldehyde resin free formaldehyde control and more than, the comprehensive use of 3.1,3.2,3.3 described materials can be reduced to E with the burst size of methanal of phosphogypsum composite material
1(＜9mg/100g, perforation extraction process) is below horizontal.
3.5 in phosphogypsum composite material, add the calcium carbide fine powder.Hydrogen that the calcium carbide hydrolysis generates and free formaldehyde reaction are converted into methyl alcohol to formaldehyde, thereby reduce the content and the burst size of formaldehyde, regulate the amount of putting into of calcium carbide, can make the inner bubbles volume that increases of phosphogypsum composite material, make it to become foam material, add-on is the 0.5-5% of urea-formaldehyde resin.
3.6 in phosphogypsum composite material, add flyash.
Flyash is industrial waste, and chemical ingredients mainly is SiO
2, shape mostly is the tiny hollow bead of the glassiness, and pH value 7.5-8 is cheap.
The phosphogypsum pH value of factory's discharging is 1.5-2.5.Be acid, this is one of reason that can make urea-formaldehyde resin and phenolic resin curing.Solidify back for some time, the phosphogypsum composite material pH value can be changed into more than 4 gradually, but still can be subacidity.Acid wet condition can make the urea-formaldehyde resin hydrolysis, and is aging and release formaldehyde is unfavorable to the use of phosphogypsum composite material.The hollow bead of the glassiness of flyash is alkalescence, adds in the phosphogypsum composite material slowly to discharge alkaline matter, thereby changes the sour environment in the phosphogypsum composite material, prevents the aging and release formaldehyde of urea-formaldehyde resin, increases its intensity.
In the solidification process of phosphogypsum composite material, urea-formaldehyde resin changes very responsive to pH value, add flyash phosphogypsum composite material curing is delayed, so flyash can be made the acid scavenger of phosphogypsum composite material, can do the retardant of phosphogypsum composite material again
The add-on of flyash can be solidified the required time needs according to products production and adjusted.
3.7 the phosphogypsum composite material performance is good, can be compound firmly with organic and inorganic fibre, and also can be compound with metallic substance.The plaster of paris can make metal get rusty and be difficult to compoundly, and the phosphorus in the phosphogypsum composite material can make metal surface phosphating and prevent to get rusty.Phosphogypsum composite material also can be compound with inorganic or organic light material.
3.8 phosphogypsum composite material of the present invention is emitted nitrogen etc. under the effect of urea-formaldehyde resin at phosphogypsum, thus under stress-free condition, form make many porous bodies.
Thereby form high-strength, lightweight, water-fast, the type material of preventing fires, having the heat-insulating sound-insulating function.
3.9 phosphogypsum is an industrial waste, belongs to utilization of waste material.Urea-formaldehyde resin is cheap.The resol price is also inexpensive, and partial action can replace with nut-shell, and nut-shell also is a waste material.The polyacrylamide consumption is few, so phosphogypsum composite material price of the present invention is low.
3.10 phosphogypsum composite material has extensive use:
Can be used as material of construction and use, make roofing, metope, furred ceiling, floor, door and window, can make furniture, make artworks such as sculpture, can also make wrapping material.
4. specific implementation method:
4.1 preparation is simple for phosphogypsum composite material, its program is:
(1) configuration or purchase urea-formaldehyde resin, configuration or purchase resol;
(2) phosphogypsum can be calcined becomes semi-hydrated gypsum, also can not calcine direct use.But for well, method for calcinating is similar to the plaster of paris with calcining.
(3) with phosphogypsum, urea-formaldehyde resin, resol, polyacrylamide, flyash mixing and stirring;
(4) take methods such as mold pressing, winding, cast, extrusion molding or mechanical making sheet according to the product processes needs.
(5) phosphogypsum composite material can be at room temperature fast curing-formed, and also the hot pressing rapid shaping can be adjusted according to product processes and performance need.
(6) can take cryodrying or seasoning after the formed product, with 60 ℃ of cryodryings for well.
4.2 specific embodiment: produce a desktop
Prepare a cover and have base plate, the mould of frame and pressing plate, and coat releasing agent.
Prescription: phosphogypsum 6000g, urea-formaldehyde resin 2500g, resol 500g, polyacrylamide 30g, glass fibre 200g, polypropylene fibre 200g, polystyrene foam 800g, flyash is an amount of.
Configuration step:
1. get the part phosphogypsum, urea-formaldehyde resin, resol, polyacrylamide furnishing slurry is standby.
2. all material is poured in the agitator and stirred, as core material.
3. the slurry that brushing one deck mixes up on mould is as the close-knit surface of panel.
4. the core material that stirs is poured in the mould, corner need fill out tightly, paves compacting.
5。Room temperature curing molding in one hour.Oven drying at low temperature is finished product.
Claims (10)
1. phosphogypsum composite material, be characterised in that: phosphogypsum mixes with urea-formaldehyde resin, resol, the room temperature or the moulding that is heating and curing.
2. the described a kind of phosphogypsum composite material of claim 1, the component ratio of phosphogypsum and urea-formaldehyde resin have big latitude, can select control according to product processes and performance requriements, generally 1: 4-4: between 1.
3. the component ratio of resol has big latitude in the described a kind of phosphogypsum composite material of claim 1, can select control according to product processes and performance requriements, and consider cost, and general consumption is below 40% of urea-formaldehyde resin amount.
4. the described a kind of phosphogypsum composite material of claim 1, it also comprises nut-shell, the nut-shell granularity does not have fixed standard, can use according to product needed is broken.
5. the described a kind of phosphogypsum composite material of claim 1, it also comprises polyacrylamide, the polyacrylamide component ratio can be selected according to product processes and performance requriements.
6. the described a kind of phosphogypsum composite material of claim 1, it also can add flyash, and the flyash component ratio can solidify the required time needs according to products production to be adjusted.
7. the described a kind of phosphogypsum composite material of claim 1, it also can add the calcium carbide fine powder, and add-on is the 0.5-5% of urea-formaldehyde resin.
8. claim 1,4,5 each described phosphogypsum composite materials can add the organic or inorganic filamentary material.
9. claim 1, each described phosphogypsum composite material of 4-6 can add the organic or inorganic light material.
10. the described urea-formaldehyde resin of claim 1 comprises urea-formaldehyde-modified resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100656025A CN101219881A (en) | 2007-01-08 | 2007-01-08 | Phosphogypsum composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100656025A CN101219881A (en) | 2007-01-08 | 2007-01-08 | Phosphogypsum composite material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101219881A true CN101219881A (en) | 2008-07-16 |
Family
ID=39630003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100656025A Pending CN101219881A (en) | 2007-01-08 | 2007-01-08 | Phosphogypsum composite material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101219881A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102070314A (en) * | 2010-11-19 | 2011-05-25 | 吴江龙泾红贝家装有限公司 | Composite material for industry and preparation method thereof |
| CN102503203A (en) * | 2011-11-17 | 2012-06-20 | 山东新力环保材料有限公司 | Fireproof thermal insulation material |
| RU2484039C1 (en) * | 2012-02-22 | 2013-06-10 | Юлия Алексеевна Щепочкина | Crude mixture for making gypsum brick |
| CN103360018A (en) * | 2013-07-11 | 2013-10-23 | 重庆暄洁环保产业（集团）股份有限公司 | Ardealite composite material insulation board and production method thereof |
| CN104098318A (en) * | 2014-07-03 | 2014-10-15 | 西安建筑科技大学 | Biomass porous phase change temperature adjustment and humidifying material and preparation method thereof |
| CN104725011A (en) * | 2015-02-04 | 2015-06-24 | 贵州开磷集团股份有限公司 | Ardealite-based imitation pinewood structure building material and preparation method thereof |
| CN105888113A (en) * | 2016-05-26 | 2016-08-24 | 重庆河邦建材有限公司 | Fibrous plaster filling box and manufacturing process |
| CN106007650A (en) * | 2016-05-20 | 2016-10-12 | 山东益丰生化环保股份有限公司 | Novel constructional material capable of removing indoor formaldehyde of constructions |
| CN107915459A (en) * | 2017-12-01 | 2018-04-17 | 马小良 | A kind of soil stabilizer |
| CN112125630A (en) * | 2020-06-17 | 2020-12-25 | 湖北益通建设股份有限公司 | High-content phosphogypsum-based stabilizing material and application thereof in road base |
| CN113461329A (en) * | 2021-07-23 | 2021-10-01 | 贵州应用技术职业学院 | Phosphogypsum-based transparent glass and preparation method thereof |
| CN114044639A (en) * | 2021-12-10 | 2022-02-15 | 贵州省建筑材料科学研究设计院有限责任公司 | Water-based polymer modified phosphogypsum powder surface method and modified phosphogypsum powder |
| CN114315197A (en) * | 2022-01-07 | 2022-04-12 | 同济大学 | Fiber concrete interface modifier and modification method |
| CN116693262A (en) * | 2023-07-28 | 2023-09-05 | 中建材中岩科技有限公司 | Grouting material for offshore wind power jacket and application method thereof |
-
2007
- 2007-01-08 CN CNA2007100656025A patent/CN101219881A/en active Pending
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102070314A (en) * | 2010-11-19 | 2011-05-25 | 吴江龙泾红贝家装有限公司 | Composite material for industry and preparation method thereof |
| CN102503203A (en) * | 2011-11-17 | 2012-06-20 | 山东新力环保材料有限公司 | Fireproof thermal insulation material |
| RU2484039C1 (en) * | 2012-02-22 | 2013-06-10 | Юлия Алексеевна Щепочкина | Crude mixture for making gypsum brick |
| CN103360018A (en) * | 2013-07-11 | 2013-10-23 | 重庆暄洁环保产业（集团）股份有限公司 | Ardealite composite material insulation board and production method thereof |
| CN103360018B (en) * | 2013-07-11 | 2014-12-10 | 重庆暄洁环保产业（集团）股份有限公司 | Ardealite composite material insulation board and production method thereof |
| CN104098318A (en) * | 2014-07-03 | 2014-10-15 | 西安建筑科技大学 | Biomass porous phase change temperature adjustment and humidifying material and preparation method thereof |
| CN104098318B (en) * | 2014-07-03 | 2016-02-10 | 西安建筑科技大学 | A kind of biomass porous phase-changing and temperature-regulating humidity adjusting material and preparation method thereof |
| CN104725011A (en) * | 2015-02-04 | 2015-06-24 | 贵州开磷集团股份有限公司 | Ardealite-based imitation pinewood structure building material and preparation method thereof |
| CN106007650B (en) * | 2016-05-20 | 2018-05-01 | 山东益丰生化环保股份有限公司 | A kind of construction material for removing Indoor environment formaldehyde |
| CN106007650A (en) * | 2016-05-20 | 2016-10-12 | 山东益丰生化环保股份有限公司 | Novel constructional material capable of removing indoor formaldehyde of constructions |
| CN105888113A (en) * | 2016-05-26 | 2016-08-24 | 重庆河邦建材有限公司 | Fibrous plaster filling box and manufacturing process |
| CN107915459A (en) * | 2017-12-01 | 2018-04-17 | 马小良 | A kind of soil stabilizer |
| CN107915459B (en) * | 2017-12-01 | 2020-07-14 | 江苏爱佳福如土壤修复有限公司 | Soil stabilizer |
| CN112125630A (en) * | 2020-06-17 | 2020-12-25 | 湖北益通建设股份有限公司 | High-content phosphogypsum-based stabilizing material and application thereof in road base |
| CN113461329A (en) * | 2021-07-23 | 2021-10-01 | 贵州应用技术职业学院 | Phosphogypsum-based transparent glass and preparation method thereof |
| CN114044639A (en) * | 2021-12-10 | 2022-02-15 | 贵州省建筑材料科学研究设计院有限责任公司 | Water-based polymer modified phosphogypsum powder surface method and modified phosphogypsum powder |
| CN114315197A (en) * | 2022-01-07 | 2022-04-12 | 同济大学 | Fiber concrete interface modifier and modification method |
| CN116693262A (en) * | 2023-07-28 | 2023-09-05 | 中建材中岩科技有限公司 | Grouting material for offshore wind power jacket and application method thereof |
| CN116693262B (en) * | 2023-07-28 | 2023-10-31 | 中建材中岩科技有限公司 | Grouting material for offshore wind power jacket and application method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101219881A (en) | Phosphogypsum composite material | |
| CN102875073B (en) | Aerated brick | |
| CN104552488A (en) | Flame retardant composite board and manufacture method thereof | |
| CN102875067A (en) | Modified nano mineral powder-containing aerated brick | |
| CN101565492B (en) | Low toxic and environment-friendly urea-formaldehyde resin and preparation method thereof | |
| CN104725015A (en) | Ardealite substrate wood imitating wall brick and preparation method thereof | |
| CN107572972A (en) | A kind of cement imitation wood and preparation method thereof | |
| CN101302412B (en) | Melamine-urea-methyl aldehyde copolycondensation resin lumber adhesive and preparation thereof | |
| CN104608230A (en) | Non-wood fiber flame retardant artificial board and manufacturing method thereof | |
| CN108726969B (en) | Gypsum board using recycled resources and production method and production system thereof | |
| CN105345913A (en) | High-water-resistance MUF resin for shaving board and production process and application thereof | |
| CN107265936A (en) | A kind of energy-saving and heat-insulating material and preparation method thereof | |
| CN103386701A (en) | Flame-retarded shaving board and manufacturing method thereof | |
| CN102555009B (en) | High-strength environment-friendly shaving board | |
| CN104552490A (en) | Wood-base structure composite material and preparation method thereof | |
| CN104497937A (en) | Low-molar ratio modified adhesive for laminate flooring base material and preparation method thereof | |
| CN112358238A (en) | Composition for preparing geopolymer-wood fiber composite board, composite board and preparation method thereof | |
| CN101774799B (en) | Ceramic scrap product and preparation method thereof | |
| CN102408848B (en) | Additive of urea formaldehyde resin adhesive and preparation method thereof | |
| CN110606712A (en) | Production method of assembled bamboo sawdust aggregate foamed cement wall core material | |
| CN103342830B (en) | Inorganic composite phenol modified urea formaldehyde resin foam and preparation method thereof | |
| CN108705646A (en) | Rice and kernel straw fire-retardation artificial board and preparation method thereof | |
| CN104212023A (en) | Waste plastic aerated hollow brick and making method thereof | |
| CN111875324A (en) | Preparation method of calcium silicate board and calcium silicate board | |
| CN106365560A (en) | Ecological crystal breathing brick and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080716 |