CN104529367A - Reinforced plasterboard and preparation method thereof - Google Patents
Reinforced plasterboard and preparation method thereof Download PDFInfo
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- CN104529367A CN104529367A CN201410816574.6A CN201410816574A CN104529367A CN 104529367 A CN104529367 A CN 104529367A CN 201410816574 A CN201410816574 A CN 201410816574A CN 104529367 A CN104529367 A CN 104529367A
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- 238000000034 method Methods 0.000 claims abstract description 30
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- 239000011505 plaster Substances 0.000 claims abstract description 12
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- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 3
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical group [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 claims description 3
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Landscapes
- Laminated Bodies (AREA)
- Building Environments (AREA)
- Panels For Use In Building Construction (AREA)
Abstract
The invention discloses a reinforced plasterboard and a preparation method thereof. The plasterboard comprises a plaster base material layer, and a three-dimensional reinforced fiber fabric embedded into the plaster base material layer, wherein the three-dimensional reinforced fiber fabric consists of an upper layer, an intermediate layer and a lower layer; the upper layer and the lower layer are meshed plate fiber layers; the intermediate layer refers to an 8-shaped fiber framework; and the upper and lower ends of the 8-shaped fiber framework are respectively connected with the plate fiber layers on the upper and lower layers. The three-dimensional reinforced fiber fabric serves as a product reinforcement material, and three-dimensional directional enhancement of glass fibers is structurally realized, so that the plate structure is uniform in stress. Compared with gridding cloth layout or short fiber injection and pouring and other processes, the method has the advantages that the breaking strength and compressive strength are greatly improved, and a mechanical guarantee is provided for production of large-specification/size plates. The preparation method disclosed by the invention is simple in process, and the obtained product is good in performance.
Description
Technical field
The present invention relates to building materials field, be specifically related to a kind of reinforced plasterboard and preparation method thereof.
Background technology
In recent years, plasterboard with its light weight, do not fire, there is the advantages such as " breathing " function and enjoy the favor of user, be widely used in house inner wall decoration, and existing interior wall panel strength is lower, in transportation, sheet material is easily broken, and installation back wall is easy to crack, makes troubles to construction; Also result in huge loss simultaneously.
Although prior art existence adds fiber and strengthens plasterboard, because irrational problem laid by its fiber, the physical strength of plasterboard still can not meet the requirement of many use occasions.
The use-pattern of the fiber of prior art is divided into staple fibre, fibrefelt and grid cloth three kinds.Staple fibre is mixed into the mode realizing in gypsum batching strengthening, due to the restriction by existing mixing procedure, staple fibre is difficult to the problem being evenly mixed into gypsum batching, and the phenomenon causing intensity distribution uneven is obvious.Staple fiber batt is bonded in the intensity that gypsum board core surface energy suitably improves plasterboard, but this adhesive structure can not make staple fiber batt play real adds powerful, the improved strength therefore for plasterboard is very limited.Fibrous mesh cloth strengthens, due to the restriction by fibrous mesh cloth production technology, so the density of fiber and the distribution consistency degree of stiffening web are difficult to reach desirable degree.
Therefore, the intensity that realize plasterboard improves again, need, from new direction, just can be expected to obtain new breakthrough mouth.Applicant draws after deliberation: in actual use, and the Strength Failure of plasterboard is mainly manifested in cracking and fracture, and fracture often occurs in cracking place.Avoid ftracture effective measure be, avoid the intensity distribution of the stress concentration of plasterboard and even as far as possible plasterboard as far as possible, said internal stress refers to that the internal stress that plasterboard produces in making processes or use procedure, intensity distribution are the distributions of length along plasterboard and width.
Further, current plasterboard adopts the plaster of paris to be main body mostly, and the limits throughput of the plaster of paris, also there is significant limitation in the place of production, causes the production area of plasterboard general all away from consumption area, must cause the increase of production cost, and along with the increase of demand, make plaster of paris exploitation of mineral resources spread unchecked and face exhaustion, therefore, need badly and seek another kind of material to replace the plaster of paris.
Desulfurated plaster is also known as flue gas desulfurization gypsum, sulphur gypsum or FGD gypsum, and main component is the same with the plaster of paris, is terra alba CaSO
42H
2o, content>=93%.Desulfurated plaster is the industry by-product gypsum that coal-fired or oily industrial enterprise obtains after administering the sulfurous gas in flue gas, and the meaning of its processing and utilization is very great.It not only effectively facilitates further developing of national environmental protection recycling economy, but also greatly reduces the produced quantity of ore cream, protects resource.And some performances of desulfurated plaster as: anti-folding, resistance to compression etc., therefore the excellent plaster of paris is far away a kind of best substitute of the plaster of paris.But due to desulfurated plaster exist water content comparatively large, mark that thick water consumption is large, grain composition is poor, defect in the performance such as Qinshui, unit weight are large, need during use to adjust accordingly, therefore desulfurated plaster is not also applied very well at present.Current most desulfurated plaster still adopts accumulation, landfill method process, causes serious pollution to soil, underground water and atmospheric environment.
If therefore can utilize desulfurated plaster produce plasterboard; then significantly can reduce the produced quantity of the plaster of paris, be conducive to save energy, Economization on land, and break a new path for the waste disposal after means of flue gas desulfurization of power plant; be conducive to the quantity discharged reducing sulfurous gas, protection of the environment.
Further, current high-grade club or house fitting-up all adopt plank to do finishing material, to highlight decorative effect that is high-end, air, but the easy moisture absorption of common plank, mouldy, house ornamentation effect can be affected.In addition, plank easy firing, once presence of fire, consequence is hardly imaginable, brings great potential safety hazard to the life of people.Therefore people are more prone to use the plasterboard with fire-proof function, but the gypsum board surface texture of existing inner wall decoration is single, be not well positioned to meet the demand of people, especially log wood texture, due to advantages such as its decorative effect noble qualities, be subject to the favor of people always, if therefore the natural texture in log surface can be simulated in gypsum board surface, can better consumer demand be catered to.
Further, domestic existing household building thing interior wall plasterboard, due to technical reason, the water tolerance of its surface layer, alkali resistance and weathering resistance are not enough, easy scratch, distortion and difficult cleaning and safeguard, especially easy at harmful mushroom generation stink, polluted airs such as surface attachment streptococcus aureuses, affect attractive in appearance.And usually adopting color paint coating to be tinting material in the wall body decoration stage, the organism volatilized in these coating (formaldehyde, benzene homologues etc.) is lasting and slowly in indoor, and serious threat people's is healthy.Therefore how to reduce indoor volatile organic compounds (VOC) content, building Green Home has become one of instant important task of contemporary mankind.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of reinforced plasterboard, by changing the structure of fortifying fibre, further, also in plasterboard base material, adds function admixture, effectively improves the intensity of plasterboard.
The solution that the present invention solves its technical problem is: a kind of reinforced plasterboard, comprises gypsum base sheet material layers, and gypsum base sheet material layers is embedded with three-dimensional enhanced fabrics; Described three-dimensional enhanced fabrics is made up of upper strata, middle layer and lower floor, described the upper and lower are latticed slab construction and the upper surface of close gypsum base sheet material layers or lower surface, described middle layer is figure of eight fiber reinforcement, and the upper/lower terminal of figure of eight fiber reinforcement is connected with the upper and lower layer of latticed slab construction respectively.
Three-dimensional enhanced fabrics is formed by fibrage, the figure of eight fiber reinforcement height in middle layer can change according to processing requirement in 2 ~ 25mm, upper and lower two-layer dull and stereotyped fiber layer thickness also can regulate, and braiding fiber thickness also can regulate.
Preferably, described three-dimensional enhanced fabrics is glass fibre, carbon fiber or basalt fibre fabrics; Namely described three-dimensional enhanced fabrics is woven by glass fibre, carbon fiber or basalt fibre and forms.
Further, described reinforced plasterboard also comprises imitative wood grain coating, and described imitative wood grain coating is positioned on gypsum base sheet material layers.
Further, described plasterboard also comprises nano titanium oxide environmental protection coating, and described nano titanium oxide environmental protection coating is positioned on gypsum base sheet material layers or imitative wood grain coating.
Further, described plasterboard also comprises aerogel layer, described aerogel layer is positioned under described gypsum base sheet material layers, aerogel compound heat-insulation felt is sticked to gypsum board surface and is formed, aerogel heat-proof felt is normally composited by nanoporous aerogel and inorganic fibre, can play insulation, heat insulation effect.
Preferably, described aerogel layer thickness 3 ~ 10mm, when 25 DEG C, thermal conductivity is 0.020W/mK.
Further, in order to improve the toughness of plasterboard, containing function admixture in described gypsum base sheet material layers, described function admixture is bisphenol A type epoxy resin, novolac epoxy, redispersable latex powder or ether of cellulose.
Put it briefly, the three-dimensional reinforced fabric that described plasterboard at least comprises gypsum base sheet material layers and embeds in gypsum base sheet material layers, further, can comprise at least one deck in imitative wood grain coating, nano titanium oxide environmental protection coating and aerogel layer.When to comprise imitative wood grain coating and nano titanium oxide environmental protection coating simultaneously, nano titanium oxide environmental protection coating is positioned on imitative wood grain coating.In order to improve toughness, in described plasterboard, function admixture bisphenol A type epoxy resin, novolac epoxy, redispersable latex powder or ether of cellulose can be contained.
Another aspect of the present invention, additionally provides a kind of preparation method of plasterboard, comprises step,
1) gypsum base sheet material layers slurry preparation: by α-high-strength desulfurization gypsum powder, heat-insulating heat-preserving material, function admixture, retardant, dispersion agent and water according to the mixing of following weight per distribution ratio, stir, obtain gypsum slurry;
α-high-strength desulfurization gypsum powder 65-75%
Heat-insulating heat-preserving material 0-9%
Function admixture 1-4%
Retardant 0.1-0.3%
Dispersion agent 0.1-0.5%
Water 20-25%
To be means of flue gas desulfurization of power plant gypsum form through processing calcining described α-high-strength desulfurization gypsum powder, preferred purity >=90%, whiteness >=90%, marks thick≤35, fineness≤1000 order;
Described heat-insulating heat-preserving material is polyimide, hollow glass microballoon or vermiculite power;
Described function admixture is bisphenol A type epoxy resin, novolac epoxy, redispersable latex powder or ether of cellulose;
Described retardant is citric acid or Citrate trianion;
Described dispersion agent is tripoly phosphate sodium STPP, Sodium hexametaphosphate 99 or polyacrylic acid;
2) gypsum base sheet material layers is shaping: be coated with one deck releasing agent at mould inside, then sprays above-mentioned gypsum slurry; After gypsum slurry initial set, put into three-dimensional enhanced fabrics, more slowly pour residue gypsum slurry into, shake to surfacing bright and clean rear standing for some time gently;
3) gypsum base sheet material layers maintenance: the gypsum base sheet material layers normal temperature maintenance of forming, after 4 hours, is carried out the demoulding; Product after the demoulding is placed in curing room maintenance 1 day.
Further, the preparation method of plasterboard of the present invention can also comprise at least one in following 3 steps, described 3 steps respectively:
4) imitative wood grain coating preparation: adopt spraying or water transfer technique to obtain required grain pattern at the upper surface of gypsum base sheet material layers, after drying, at grain pattern surface spraying acrylic varnish, 100 DEG C of oven dry, thus obtain the plasterboard with imitative wood grain coating;
5) nano titanium oxide environmental protection coating preparation: at the upper surface of obtained gypsum base sheet material layers or the solution of upper surface spraying containing nano titanium oxide of imitative wood grain coating, and dry, form nano titanium oxide environmental protection coating; Described solution is made up of the component of following weight percent:
Nano titanium oxide 1-5%
Membrane-forming agent 30-40%
Dispersion agent 1.5-7.5%
Deionized water 50-65%
Described nano titanium oxide is anatase structured nano titanium oxide;
Described membrane-forming agent is silicate or silicon ester;
The pH of described solution is 7 ~ 11;
6) aerogel layer preparation: utilize adhesive for building that aerogel compound heat-insulation felt is pasted and fixed on the lower surface of gypsum base sheet material layers, forms aerogel layer.
That is, according to above-mentioned summary, the preparation method of plasterboard of the present invention can comprise:
The preparation method of scheme one, a kind of plasterboard, comprises step,
1) gypsum base sheet material layers slurry preparation;
2) gypsum base sheet material layers is shaping;
3) gypsum base sheet material layers maintenance;
4) imitative wood grain coating preparation.
The preparation method of scheme two, a kind of plasterboard, comprises step
1) gypsum base sheet material layers slurry preparation;
2) gypsum base sheet material layers is shaping;
3) gypsum base sheet material layers maintenance;
5) nano titanium oxide environmental protection coating preparation.
The preparation method of scheme three, a kind of plasterboard, comprises step:
1) gypsum base sheet material layers slurry preparation;
2) gypsum base sheet material layers is shaping;
3) gypsum base sheet material layers maintenance;
6) aerogel layer preparation.
The preparation method of scheme four, a kind of plasterboard, comprises the following steps,
1) gypsum base sheet material layers slurry preparation;
2) gypsum base sheet material layers is shaping;
3) gypsum base sheet material layers maintenance;
4) imitative wood grain coating preparation;
5) nano titanium oxide environmental protection coating preparation.
The preparation method of scheme five, a kind of plasterboard, comprises step:
1) gypsum base sheet material layers slurry preparation;
2) gypsum base sheet material layers is shaping;
3) gypsum base sheet material layers maintenance;
4) imitative wood grain coating preparation;
6) aerogel layer preparation.
The preparation method of scheme six, a kind of plasterboard, comprises the following steps,
1) gypsum base sheet material layers slurry preparation;
2) gypsum base sheet material layers is shaping;
3) gypsum base sheet material layers maintenance;
5) nano titanium oxide environmental protection coating preparation;
6) aerogel layer preparation.
The preparation method of scheme seven, a kind of plasterboard, comprises the following steps,
1) gypsum base sheet material layers slurry preparation;
2) gypsum base sheet material layers is shaping;
3) gypsum base sheet material layers maintenance;
4) imitative wood grain coating preparation;
5) nano titanium oxide environmental protection coating preparation;
6) aerogel layer preparation.
The specific implementation method of each step operates according to aforesaid detailed step.
The invention has the beneficial effects as follows:
A () the present invention strengthens as product muscle material by adopting three-dimensional enhanced fabrics, from structure, the three-dimensional orientation achieving glass fibre strengthens, make plate construction uniform force, to lay with employing grid cloth or compared with the technique such as staple fibre sprays, cast, very big amplitude promotes anti-folding, ultimate compression strength, for large gauge size board materials production provides mechanics to ensure.
Processed by α-high-strength desulfurization gypsum powder slurry in (b) gypsum base of the present invention sheet material layers, add function admixture in slurry simultaneously, effectively can improve the toughness of plasterboard, can make plasterboard have suitable in moulding process just final set, in transportation the not easily advantage such as permanency shape after broken, installation.
C α-high-strength the desulfurization gypsum powder of () gypsum base of the present invention sheet material layers adopts the high-temperature calcination of flue gas of power plants desulfurated plaster to process, the usage quantity of natural mineral products gypsum is not only made to be cushioned, also power plant's waste desulfurated plaster is solved to the pollution problem of environment, turn waste into wealth, achieve the recycling of resource, from the fundamental state policy meeting " Sustainable development " inwardly, it is a kind of product being conducive to the Sustainable development of ecotope.
D () gypsum board surface of the present invention also has the wood texture coating of natural timber aesthetic feeling, noble generous, does not fire and fire-retardant, and fire-protection rating is high, makes indoor building materials of house fitting-up have more hommization; Plasterboard of the present invention also has nano titanium oxide environmental protection coating, have purify the air of a room, the effect such as sterilization, and have the advantages such as self-cleaning function.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described.Obviously, described accompanying drawing is a part of embodiment of the present invention, instead of whole embodiment, and those skilled in the art, under the prerequisite not paying creative work, can also obtain other designs and accompanying drawing according to these accompanying drawings.
Fig. 1-4 is gypsum board structure schematic diagram of the embodiment of the present invention.
Embodiment
Clear, complete description is carried out, to understand object of the present invention, characteristic sum effect fully below with reference to embodiment and the accompanying drawing technique effect to design of the present invention, concrete structure and generation.Obviously; described embodiment is a part of embodiment of the present invention, instead of whole embodiment, based on embodiments of the invention; other embodiments that those skilled in the art obtains under the prerequisite not paying creative work, all belong to the scope of protection of the invention.Each technical characteristic in the invention, can combination of interactions under the prerequisite of not conflicting conflict.
With reference to Fig. 1, the plasterboard of one embodiment of the invention, comprises gypsum base sheet material layers 1, and gypsum base sheet material layers 1 is embedded with three-dimensional enhanced fabrics 2; Three-dimensional enhanced fabrics 2 is made up of upper strata 21, middle layer 22 and lower floor 23, upper strata 21 and lower floor 23 are latticed slab construction and the upper surface of close gypsum base sheet material layers 1 or lower surface, middle layer 22 is figure of eight fiber reinforcement, and the upper/lower terminal of figure of eight fiber reinforcement is connected with lower floor 23 with the upper strata 21 of latticed slab construction respectively.
With reference to Fig. 2-4, give the structural representation of the plasterboard of other structures of the embodiment of the present invention.
As Fig. 2 (a), a kind of plasterboard, with comprising gypsum base sheet material layers 1, embedding the three-dimensional enhanced fabrics 2 in gypsum base sheet material layers 1, also comprising the imitative wood grain coating 3 be positioned on gypsum base sheet material layers 1.
As Fig. 2 (b), a kind of plasterboard, comprises gypsum base sheet material layers 1, embeds the three-dimensional enhanced fabrics 2 in gypsum base sheet material layers, also comprises the nano titanium oxide environmental protection coating 4 be positioned on gypsum base sheet material layers 1.
As Fig. 2 (c), a kind of plasterboard, comprises gypsum base sheet material layers 1, embeds the three-dimensional enhanced fabrics 2 in gypsum base sheet material layers, also comprises the aerogel layer 5 be positioned under gypsum base sheet material layers 1.
As Fig. 3 (a), a kind of plasterboard, on the architecture basics that Fig. 2 (a) illustrates, further comprise nano titanium oxide environmental protection coating 4, nano titanium oxide environmental protection coating 4 is positioned on imitative wood grain coating 3.
As Fig. 3 (b), a kind of plasterboard, on the architecture basics that Fig. 2 (b) illustrates, further comprise aerogel layer 5, aerogel layer 5 is positioned under gypsum base sheet material layers 1.
As Fig. 3 (c), a kind of plasterboard, on the architecture basics that Fig. 2 (c) illustrates, further comprises imitative wood grain coating 3, and imitative wood grain coating 3 is positioned on gypsum base sheet material layers 1.
As Fig. 4, a kind of plasterboard, on the architecture basics that Fig. 3 (a) illustrates, further comprise aerogel layer 5, aerogel layer 5 is positioned under gypsum base sheet material layers 1.
Preferably, in order to improve the toughness of plasterboard, can add function admixture in the gypsum base sheet material layers 1 in above-described embodiment, described function admixture is bisphenol A type epoxy resin, novolac epoxy, redispersable latex powder or ether of cellulose.
Three-dimensional enhanced fabrics 2 in above-described embodiment is woven by glass fibre, carbon fiber or basalt fibre and forms, the figure of eight fiber reinforcement height in middle layer 22 can change according to processing requirement in 2 ~ 25mm, upper and lower two-layer dull and stereotyped fiber layer thickness also can regulate, and braiding fiber thickness also can regulate.
Imitative wood grain coating 3 adopts spraying or water transfer technique to obtain required grain pattern at the upper surface of gypsum base sheet material layers 1, and after drying, at grain pattern surface spraying acrylic varnish, 100 DEG C of oven dry, prepare.The spraying adopted or water transfer technique are the technology that those skilled in the art commonly use, and wherein spraying comprises spray graining paint or ink-jet; Due to many containing organic solvent in graining paint, thus preferably ink-jetting style spraying, more environmental protection; Or water transfer technique obtains.As according to water transfer technique, specific practice can be as follows:
1) water transfer wood grain marble paper is made.Grain pattern as required exports egative film seal carving version after carrying out computer process, then on water transfer printing base stock, carry out pattern printing, and the base stock of printed pattern republishes front cover oil; Or directly utilize color laser printer to be printed on water transfer printing base stock by required grain pattern.
2) wood grain marble paper soaks.The wood grain marble paper produced is inserted in water, takes out after soaking 30s, wait it to slide.Notice that soak time is not too long, otherwise the glue on meeting dissolving paper surface.
3) pattern is posted.First polishing grinding process is carried out on the surface of plasterboard, then soaked wood grain marble paper is posted on it, strikes off unnecessary moisture, send into kiln.
4) dry.Draw in kiln by the plasterboard posting water transfer wood grain marble paper, dry 30min at 60 ~ 100 DEG C, takes off wood grain marble paper.
5) adopt commercially available water soluble acrylic acid varnish, allocate by its process ratio, be sprayed into gypsum board surface, dry for 100 DEG C.
The solution spraying of described nano titanium oxide environmental protection coating 4 containing nano titanium oxide prepares on the surface in gypsum base sheet material layers 1 or imitative wood grain coating 3.Because nano titanium oxide has photocatalysis effect, be sprayed on gypsum board surface, then can be decomposed the objectionable impurities produced in house decoration process, purify the air of a room, also there is germicidal action, simultaneously can preventing dust dirt, easy to clean, maintenance and safeguarding.
Described aerogel layer 5, be aerogel compound heat-insulation felt is sticked to gypsum board surface and is formed, aerogel heat-proof felt is normally composited by nanoporous aerogel and inorganic fibre, can play insulation, heat insulation effect.
Preferably, described aerogel layer 5 thickness is 3 ~ 10mm, and when 25 DEG C, thermal conductivity is 0.020W/mK.
Below in conjunction with preferred specific embodiment, further illustrate the structure of plasterboard of the present invention, preparation method and performance etc.
In following examples, used α-high-strength desulfurization gypsum powder is that means of flue gas desulfurization of power plant gypsum forms through processing calcining, by its purity >=90%, whiteness >=90%, marks thick≤35, fineness≤1000 order.
Embodiment 1:
1) gypsum base sheet material layers 1 slurry preparation: by 72kg α-high-strength desulfurization gypsum powder, 3kg bisphenol A type epoxy resin, 0.1kg citric acid, 0.5kg ACRYLIC EMULSION, 24.4kg water, stir, obtains gypsum slurry.
2) gypsum base sheet material layers 1 is shaping: be coated with one deck releasing agent at mould inside, then sprays above-mentioned gypsum slurry.After gypsum slurry initial set, put into three-dimensional enhanced fabrics 2, more slowly pour residue gypsum slurry into, shake gently to surfacing bright and clean rear standing for some time, described three-dimensional enhanced fabrics 2 is formed by glass fiber textile, middle layer 22 height 12mm.
3) gypsum base sheet material layers 1 maintenance: the gypsum base sheet material layers normal temperature maintenance of forming, after 4 hours, is carried out the demoulding; Product after the demoulding was placed in curing room maintenance after 1 day, prepared gypsum base sheet material layers 1.
The plasterboard obtained is of a size of 300mm × 300mm × 18mm, and product structure as shown in Figure 1.
Embodiment 2:
1) gypsum base sheet material layers 1 slurry preparation: by 70kg α-high-strength desulfurization gypsum powder, 6kg polyimide, 3kg novolac epoxy, 0.1kg citric acid, 0.4kg ACRYLIC EMULSION, 20.5kg water, stir, obtains gypsum slurry.
2) gypsum base sheet material layers 1 is shaping: be coated with one deck releasing agent at mould inside, then sprays above-mentioned gypsum slurry.After gypsum slurry initial set, put into three-dimensional enhanced fabrics 2, more slowly pour residue gypsum slurry into, shake gently to surfacing bright and clean rear standing for some time, described three-dimensional enhanced fabrics 2 is formed by glass fiber textile, middle layer 22 height 12mm.
3) gypsum base sheet material layers 1 maintenance: the gypsum base sheet material layers normal temperature maintenance of forming, after 4 hours, is carried out the demoulding; Product after the demoulding was placed in curing room maintenance after 1 day, prepared gypsum base sheet material layers 1.
4) preparation of imitative wood grain layer 3: according to processing requirement, obtain required grain pattern according to aforesaid water transfer technique at the upper surface of gypsum base sheet material layers, 80 DEG C of dry 30min; Then adopt commercially available water soluble acrylic acid varnish, allocate by its process ratio, be sprayed into grain pattern surface, 100 DEG C of oven dry.
The plasterboard obtained is of a size of 300mm × 300mm × 18mm, and product structure as shown in Figure 2 (a) shows.
Embodiment 3:
1) gypsum base sheet material layers 1 slurry preparation: by 65kg α-high-strength desulfurization gypsum powder, 8kg glass microsphere, 2kg redispersable latex powder, 0.2kg Citrate trianion, 0.1kg tripoly phosphate sodium STPP, 26.7kg water, stir, obtains gypsum slurry.
2) gypsum base sheet material layers 1 is shaping: be coated with one deck releasing agent at mould inside, then sprays above-mentioned gypsum slurry.After gypsum slurry initial set, put into three-dimensional enhanced fabrics 2, more slowly pour residue gypsum slurry into, shake gently to surfacing bright and clean rear standing for some time, described three-dimensional enhanced fabrics 2 is formed by glass fiber textile, middle layer 22 height 12mm.
3) gypsum base sheet material layers 1 maintenance: the gypsum base sheet material layers normal temperature maintenance of forming, after 4 hours, is carried out the demoulding; Product after the demoulding was placed in curing room maintenance after 1 day, prepared gypsum base sheet material layers 1.
4) prepared by imitative wood grain layer 3: according to processing requirement, by wood grain lacquering technologies, the pattern direct spraying of required wood grain is formed in gypsum base sheet material layers upper surface, after drying; Adopt commercially available water soluble acrylic acid varnish, allocate by its process ratio, be sprayed into gypsum board surface, dry for 100 DEG C.
5) prepared by nano titanium oxide environmental protection coating 4: 4kg perovskite typed nano titanium oxide, 35kg silicate, 6kg anion surfactant, 63kg deionized water are mixed, stir, and with NaOH aqueous solution regulator solution pH=10, namely obtain the stable nano titanium oxide aqueous solution with photocatalytic activity.Be poured into again in spray gun, the surface of the extremely imitative wood grain layer 3 of even application, seasoning film forming.
The plasterboard obtained is of a size of 300mm × 300mm × 18mm, and product structure is as shown in Fig. 3 (a).
Embodiment 4:
1) gypsum base sheet material layers 1 slurry preparation: by 71kg material α-high-strength desulfurization gypsum powder, 7kg vermiculite power, 1kg novolac epoxy, 0.1kg citric acid, 0.1kg Sodium hexametaphosphate 99,20.8kg water, stir, obtains gypsum slurry.
2) gypsum base sheet material layers 1 is shaping: be coated with one deck releasing agent at mould inside, then sprays above-mentioned gypsum slurry.After gypsum slurry initial set, put into three-dimensional enhanced fabrics 2, more slowly pour residue gypsum slurry into, shake gently to surfacing bright and clean rear standing for some time, described three-dimensional enhanced fabrics 2 is formed by weaving by basalt fibre, middle layer 22 height 20mm.
3) gypsum base sheet material layers 1 maintenance: the gypsum base sheet material layers 1 normal temperature maintenance of forming, after 4 hours, is carried out the demoulding; Product after the demoulding was placed in curing room maintenance after 1 day, prepared gypsum base sheet material layers 1.
5) prepared by nano titanium oxide environmental protection coating 4: 5kg perovskite typed nano titanium oxide, 36kg silicate, 7.5kg cats product, 50.5kg deionized water are mixed, stir, and with NaOH aqueous solution regulator solution pH=7, namely obtain the stable nano titanium oxide aqueous solution with photocatalytic activity.Be poured into again in spray gun, even application to the surface of gypsum base sheet material layers 1, seasoning film forming.
The plasterboard obtained is of a size of 300mm × 300mm × 25mm, and product structure is as shown in Fig. 2 (b).
Embodiment 5:
1) gypsum base sheet material layers 1 slurry preparation: by 69kg α-high-strength desulfurization gypsum powder, 1kg novolac epoxy, 0.1kg citric acid, 0.5kg polyacrylate emulsion, 29.4kg water, stir, obtains gypsum slurry.
2) gypsum base sheet material layers 1 is shaping: be coated with one deck releasing agent at mould inside, then sprays above-mentioned gypsum slurry.After gypsum slurry initial set, put into three-dimensional enhanced fabrics 2, more slowly pour residue gypsum slurry into, shake gently to surfacing bright and clean rear standing for some time, described three-dimensional enhanced fabrics 2 is formed by carbon fiber textile, middle layer 22 height 8mm.
3) gypsum base sheet material layers 1 maintenance: the gypsum base sheet material layers 1 normal temperature maintenance of forming, after 4 hours, is carried out the demoulding; Product after the demoulding was placed in curing room maintenance after 1 day, prepared gypsum base sheet material layers 1.
6) preparation of aerogel layer 5: utilize adhesive for building that aerogel compound heat-insulation felt thick for 6mm is pasted and fixed on the lower surface of gypsum base sheet material layers 1, forms aerogel layer 5.
The plasterboard obtained is of a size of 300mm × 300mm × 18mm, and product structure as shown in Figure 2 (c).
Embodiment 6:
1) gypsum base sheet material layers 1 slurry preparation: by 75kg α-high-strength desulfurization gypsum powder, 4kg glass microsphere, 0.1kg novolac epoxy, 0.3kg citric acid, 0.3kg polyacrylate emulsion, 21.6kg water, stir, obtains gypsum slurry.
2) gypsum base sheet material layers 1 is shaping: be coated with one deck releasing agent at mould inside, then sprays above-mentioned gypsum slurry.After gypsum slurry initial set, put into three-dimensional enhanced fabrics 2, more slowly pour residue gypsum slurry into, shake gently to surfacing bright and clean rear standing for some time, described three-dimensional enhanced fabrics 2 is formed by glass fiber textile, middle layer 22 height 8mm.
3) gypsum base sheet material layers 1 maintenance: the gypsum base sheet material layers normal temperature maintenance of forming, after 4 hours, is carried out the demoulding; Product after the demoulding was placed in curing room maintenance after 1 day, prepared gypsum base sheet material layers 1.
5) prepared by nano titanium oxide environmental protection coating 4: 5kg perovskite typed nano titanium oxide, 31kg silicon ester, 7.5kg PEG, 57.5kg deionized water are mixed, stir, and with NaOH aqueous solution regulator solution pH=8, namely obtain the stable nano titanium oxide aqueous solution with photocatalytic activity.Be poured into again in spray gun, even application to the surface of gypsum base sheet material layers 1, seasoning film forming.
6) preparation of aerogel layer 5: utilize adhesive for building that aerogel compound heat-insulation felt thick for 6mm is pasted and fixed on the lower surface of gypsum base sheet material layers 1, forms aerogel layer 5.
The plasterboard obtained is of a size of 300mm × 300mm × 18mm, and product structure as shown in Figure 3 (b).
Embodiment 7:
1) gypsum base sheet material layers 1 slurry preparation: by 72kg α-high-strength desulfurization gypsum powder, 3kg bisphenol A type epoxy resin, 0.1kg citric acid, 0.5kg polyacrylate emulsion, 24.4kg water, stir, obtains gypsum slurry.
2) gypsum base sheet material layers 1 is shaping: be coated with one deck releasing agent at mould inside, then sprays above-mentioned gypsum slurry.After gypsum slurry initial set, put into three-dimensional enhanced fabrics 2, more slowly pour residue gypsum slurry into, shake gently to surfacing bright and clean rear standing for some time, described three-dimensional enhanced fabrics 2 is formed by glass fiber textile, middle layer 22 height 8mm.
3) gypsum base sheet material layers 1 maintenance: the gypsum base sheet material layers 1 normal temperature maintenance of forming, after 4 hours, is carried out the demoulding; Product after the demoulding was placed in curing room maintenance after 1 day, prepared gypsum base sheet material layers 1.
4) preparation of imitative wood grain layer 3: according to processing requirement, obtain required grain pattern according to aforesaid water transfer technique at the upper surface of gypsum base sheet material layers 1,80 DEG C of dry 30min; Then adopt commercially available water soluble acrylic acid varnish, allocate by its process ratio, be sprayed into grain pattern surface, 100 DEG C of oven dry.
5) prepared by nano titanium oxide environmental protection coating 4: 5kg perovskite typed nano titanium oxide, 30kg silicon ester, 7.5kg anion surfactant, 58.5kg deionized water are mixed, stir, and with NaOH aqueous solution regulator solution pH=11, namely obtain the stable nano titanium oxide aqueous solution with photocatalytic activity.Be poured into again in spray gun, the surface of the extremely imitative wood grain layer 3 of even application, seasoning film forming.
6) preparation of aerogel layer 5: utilize adhesive for building that aerogel compound heat-insulation felt thick for 10mm is pasted and fixed on the lower surface of gypsum base sheet material layers 1, forms aerogel layer 5.
The plasterboard obtained is of a size of 300mm × 300mm × 25mm, and product structure as shown in Figure 4.
Comparative example 1:
1) proportioning raw materials identical with embodiment 1 is adopted to prepare gypsum slurry.
2) be coated with one deck releasing agent at mould inside, then spray above-mentioned gypsum slurry.After gypsum slurry initial set, put into the glass mat that fiber layer structure dull and stereotyped with the lower floor of the three-dimensional enhanced fabrics of embodiment 1 is consistent, slowly pour the gypsum slurry of about 2/3rds again into, shake to surfacing bright and clean rear standing for some time gently, put into the glass mat that fiber layer structure dull and stereotyped with the lower floor of the three-dimensional enhanced fabrics of embodiment 1 is consistent again, then slowly pour remaining slurry into, shake gently to surfacing bright and clean rear standing for some time.
Then with reference to the method that embodiment 1 is consistent, shaping, the demoulding obtains gypsum base sheet material layers, and the imitative wood grain layer of spraying and nano titanium oxide environmental protection coating, finally obtain the glasscloth reinforced plasterboard being of a size of 300mm × 300mm × 18mm.
With the plasterboard that obtains in comparative example 1 in embodiment of the present invention 1-3, through test, test result is as follows:
Foregoing illustrate the preparation method of plasterboard of the present invention, but its sequence of steps implemented is not limited to the order described in the embodiment of the present invention, any other equivalent order change also belongs to the scope of protection of the invention.
Above better embodiment of the present invention is illustrated, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent modifications or replacement under the prerequisite without prejudice to spirit of the present invention, and these equivalent modification or replacement are all included in the application's claim limited range.
Claims (9)
1. a reinforced plasterboard, is characterized in that: comprise gypsum base sheet material layers, and gypsum base sheet material layers is embedded with three-dimensional enhanced fabrics; Described three-dimensional enhanced fabrics is made up of upper strata, middle layer and lower floor, described the upper and lower are latticed slab construction and the upper surface of close gypsum base sheet material layers or lower surface, described middle layer is figure of eight fiber reinforcement, and the upper/lower terminal of figure of eight fiber reinforcement is connected with the upper and lower layer of latticed slab construction respectively.
2. reinforced plasterboard according to claim 1, is characterized in that: described three-dimensional enhanced fabrics is glass fibre, carbon fiber or basalt fibre fabrics.
3. reinforced plasterboard according to claim 1, is characterized in that: also comprise imitative wood grain coating, and described imitative wood grain coating is positioned on gypsum base sheet material layers.
4. the reinforced plasterboard according to claim 1 or 3, is characterized in that: also comprise nano titanium oxide environmental protection coating, and described nano titanium oxide environmental protection coating is positioned on gypsum base sheet material layers or imitative wood grain coating.
5. reinforced plasterboard according to claim 1, is characterized in that: also comprise aerogel layer, and described aerogel layer is positioned under described gypsum base sheet material layers.
6. reinforced plasterboard according to claim 5, is characterized in that: described aerogel layer thickness is 3 ~ 10mm; When 25 DEG C, thermal conductivity is 0.020W/mK.
7. reinforced plasterboard according to claim 1, is characterized in that: containing function admixture in described gypsum base sheet material layers, described function admixture is bisphenol A type epoxy resin, novolac epoxy, redispersable latex powder or ether of cellulose.
8. a preparation method for reinforced plasterboard, is characterized in that, comprises the following steps:
1) gypsum base sheet material layers slurry is prepared: by α-high-strength desulfurization gypsum powder, heat-insulating heat-preserving material, function admixture, retardant, dispersion agent and water according to the mixing of following weight per distribution ratio, stir, obtain gypsum slurry;
α-high-strength desulfurization gypsum powder 65-75%
Heat-insulating heat-preserving material 0-9%
Function admixture 1-4%
Retardant 0.1-0.3%
Dispersion agent 0.1-0.5%
Water 20-25%
Described α-high-strength desulfurization gypsum powder adopts the high-temperature calcination of flue gas of power plants desulfurated plaster to process, and purity >=90%, whiteness >=90%, marks thick≤35, fineness≤1000 order;
Described heat-insulating heat-preserving material is polyimide, hollow glass microballoon or vermiculite power;
Described function admixture is bisphenol A type epoxy resin, novolac epoxy, redispersable latex powder or ether of cellulose;
Described retardant is citric acid or Citrate trianion;
Described dispersion agent is tripoly phosphate sodium STPP, Sodium hexametaphosphate 99 or polyacrylic acid;
2) gypsum base sheet material layers is shaping: be coated with one deck releasing agent at mould inside, then sprays above-mentioned gypsum slurry; After gypsum slurry initial set, put into three-dimensional enhanced fabrics, more slowly pour residue gypsum slurry into, shake to surfacing bright and clean rear standing for some time gently;
3) gypsum base sheet material layers maintenance: the gypsum base sheet material layers normal temperature maintenance of forming, after 4 hours, is carried out the demoulding; Product after the demoulding is placed in curing room maintenance 1 day, obtains described gypsum base sheet material layers.
9. the preparation method of reinforced plasterboard according to claim 8, is characterized in that, also comprises at least one in following 3 steps, described 3 steps respectively:
4) imitative wood grain coating preparation: adopt spraying or water transfer technique to obtain required grain pattern at the upper surface of gypsum base sheet material layers, after drying, at grain pattern surface spraying acrylic varnish, 100 DEG C of oven dry, thus obtain the plasterboard with imitative wood grain coating;
5) nano titanium oxide environmental protection coating preparation: at the upper surface of obtained gypsum base sheet material layers or the solution of upper surface spraying containing nano titanium oxide of imitative wood grain coating, and dry, form nano titanium oxide environmental protection coating; Described solution is made up of the component of following weight percent:
Nano titanium oxide 1-5%
Membrane-forming agent 30-40%
Dispersion agent 1.5-7.5%
Deionized water 50-65%
Described nano titanium oxide is anatase structured nano titanium oxide;
Described membrane-forming agent is silicate or silicon ester;
The pH of described solution is 7 ~ 11;
6) aerogel layer preparation: utilize adhesive for building that aerogel compound heat-insulation felt is pasted and fixed on the lower surface of gypsum base sheet material layers, forms aerogel layer.
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| CN113461406A (en) * | 2021-07-21 | 2021-10-01 | 上海靓目新材料科技发展有限公司 | Argil soft stone plate and manufacturing process thereof |
| WO2023005022A1 (en) * | 2021-07-27 | 2023-02-02 | 北新集团建材股份有限公司 | Gypsum board and preparation method therefor |
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| CN104529367B (en) | 2017-03-22 |
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