CN204112578U - Refractory plasterboard - Google Patents
Refractory plasterboard Download PDFInfo
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- CN204112578U CN204112578U CN201420243117.8U CN201420243117U CN204112578U CN 204112578 U CN204112578 U CN 204112578U CN 201420243117 U CN201420243117 U CN 201420243117U CN 204112578 U CN204112578 U CN 204112578U
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Abstract
A kind of refractory plasterboard, comprise the individual paper layer of fire-resistant basic unit, the first external surface being bonded in fire-resistant basic unit respectively and the second external surface, described refractory plasterboard also comprises the multiple combined type grid ribs layers be set in fire-resistant basic unit, described each combined type grid ribs layer comprises compound glass fibrous mesh cloth, the combined type grid ribs layer that described fiberglass gridding cloth is formed in stacked mode.The purpose of this utility model is to provide a kind of refractory plasterboard, it adopts the structure of the multi-layer combined grid ribs layer be made up of the fiberglass gridding cloth that heat resistance is strong, make the monofilament quantity of the sub-thread glass fiber bundle of grid ribs layer and mesh-density not be subject to the restriction of fiberglass gridding cloth production technology, effectively promote the intensity of refractory plasterboard product, meet the grade of fiery stability and fire endurance performance.
Description
Technical field
The utility model relates to building materials technology field, is specifically related to a kind of Thistle board, particularly a kind of refractory plasterboard.
Background technology
As everyone knows, the core of Thistle board is formed by parget water chemical combination, itself has good fire resistance.Gypsum plank core is when meeting high temperature, and dihydrate gypsum absorbs heat, and discharges the crystallization water, and destroy the molecular link connecting these 2 hydrones, every kilogram of dihydrate gypsum needs the heat energy of 712KJ, and moisture evaporation simultaneously also needs heat energy.So gypsum core in a fire every kilogram consume heat be about 1256KJ.Thistle board also has another characteristic, namely gypsum core contained humidity is not before all discharging and evaporating, the plate surface temperature of the Thistle board be made up of dihydrate gypsum core can not more than 140 DEG C, and gypsum is meeting the water that discharges after fire and the steam changed into by water is nontoxic.Therefore, Thistle board is widely used in the partition wall, furred ceiling etc. of building.What require along with building firesafety improves constantly, fire resistance for Thistle board requires more and more higher, and therefore, the technical development of refractory plasterboard is swift and violent, demand is day by day soaring, and fire resistance has become one of key factor of Thistle board market competition.The difference of refractory plasterboard and common paper surface gypsum board is, it meets fiery stability and fire endurance need be up to state standards, as GB/T9775 " Thistle board " standard specifies that the chance fire stability of refractory plasterboard is greater than 20 minutes, fire endurance should reach 1 hour.
But, due to glass fiber-reinforced polymer structure and lay irrational reason, so the mechanical strength of the refractory plasterboard of prior art, meet fiery stability and fire endurance can not meet high-grade refractory standard requirement.The production of Thistle board is actual to be shown, depends merely on the quantity increasing glass fiber-reinforced polymer, not only can not obtain the fire-resistant effect of anticipation, and excessive use glass fiber, can cause the increase of manufacturing cost and the decline of environmental-protecting performance.Therefore, the intensity of refractory plasterboard be promoted, meet the grade of fiery stability and fire endurance, need, from the new direction increased beyond glass fiber-reinforced polymer quantity, just can be expected to obtain new breakthrough mouth.Applicant draws after deliberation: in actual use, and the Strength Failure of refractory plasterboard is mainly manifested in cracking and fracture, and fracture often occurs in cracking place; Meeting fiery stability to lose efficacy and fire endurance performance failure, is all cracking development after being heated by gypsum plank, if can extend gypsum plank from be heated to time between cracking, just effectively can improve the fiery stability of chance and fire endurance performance; Avoid ftracture effective measures be, avoid the intensity distribution of the stress concentration of gypsum plank and even as far as possible gypsum plank as far as possible, said internal stress refers to that the internal stress that gypsum plank produces in manufacturing process or thermal histories, intensity distribution refer to the distribution of length along gypsum plank and width.The mode of occupation of the glass fiber of prior art is divided into short fiber, fibrofelt and grid cloth three kinds.Short glass fiber is mixed into the mode realizing reinforcement in gypsum batching, due to the restriction by existing mixing procedure, short glass fiber is difficult to the problem being evenly mixed into gypsum batching, and the phenomenon causing intensity distribution uneven is obvious.Short glass fiber felt is bonded in the intensity that gypsum board core surface energy suitably improves gypsum plank, but this adhesive structure short glass fiber felt can not be made to play muscle add powerful, the improved strength therefore for gypsum plank is very limited.Existing grid cloth reinforcement, due to the restriction by fiberglass gridding cloth production technology, so the distribution consistency degree of density and muscle is difficult to reach desirable degree.In the actual production process of the fiberglass gridding cloth of existing gypsum plank, face the technical contradiction that two large restriction panel strength improve again: one of contradiction is, the contradiction that the filament diameter larger then glass fiber intensity of the glass fiber caused due to micro-crack principle is lower, therefore actual available glass fiber single filament diameter can only in tens micron dimensions, the drag load of so thin glass fiber is very small, usually adopt the glass fiber bundle of many monofilament composition as one grid ribs for this reason, for the intensity improving gypsum plank need increase the monofilament quantity of sub-thread glass fiber bundle, but the monofilament quantity of sub-thread glass fiber bundle makes the intensity distribution of gypsum plank more uneven more at most, two of contradiction is, owing to diminish with grid by the stitchability restriction of glass fiber and the fibre damage that causes of looming process and the contradiction of aggravating, actual attainable minimum size of mesh opening also can only tens millimeters of magnitudes, and the larger then density of size of mesh opening is less.As can be seen here, owing to limiting by above-mentioned technical contradiction, the fiberglass gridding cloth reinforcement of existing Thistle board, all there is the defect that monofilament quantity is too much, size of mesh opening is excessive of sub-thread glass fiber bundle, the problem pockety of the little and muscle of the density caused thus, seriously constrains the intensity of Paper-faced gyp panel products, meets improving again of fiery stability and fire endurance performance.
Because glass fiber still can keep intensity constant at 200 DEG C-250 DEG C, softening temperature is between 580 DEG C-915 DEG C, and under soft state, there is viscosity, therefore, improve the distribution consistency degree of density and muscle, refractory plasterboard can be made at 800 DEG C obviously to reduce temperature distortion, reduce the stereomutation caused because gypsum shrinks, and can also improve gypsum core drawknot efficiency together, keep time of globality to extend gypsum plank, the fiery stability of chance is brought up to much larger than 20 minutes, fire endurance brings up to the level being greater than 1 hour.In addition, coordinate therewith to adopt and add shrinkage-compensating dosage and high temperature reinforcing agent, the shrinkage stress of the numerous fine cracks dispersion gypsum board core occurred when gypsum crystal is subsided, to delay appearance and the disconnection of fault and fissures, effective prolongation gypsum board core loses the time of fire insulation ability, improves further and meets fiery stability and fire endurance level.
Summary of the invention
The purpose of this utility model is the defect overcoming above-mentioned prior art, provides a kind of and meets the refractory plasterboard that fiery stability is high, fire endurance performance is strong.
For achieving the above object, the utility model have employed following technical scheme:
A kind of refractory plasterboard, comprise fire-resistant basic unit 1, be bonded in the first external surface 1a of fire-resistant basic unit 1 and 2 paper layers 2 of the second external surface 1b respectively, described refractory plasterboard also comprises the multiple combined type grid ribs layers 3 be set in fire-resistant basic unit 1, and it is the fiberglass gridding cloth 31 that base material weaves that described each combined type grid ribs layer 3 comprises multilayer by glass fiber.
Further, described refractory plasterboard comprises 2 combined type grid ribs layers 3,2 combined type grid ribs layers 3 are set in the top layer of the close first external surface 1a in fire-resistant basic unit 1 and the top layer of close second external surface 1b respectively, and become to be symmetrical arranged between the fiberglass gridding cloth 31 of two combined type grid ribs layers 3.
Further, it is characterized in that: described refractory plasterboard comprises 3 combined type grid ribs layers 3, wherein two combined type grid ribs layers 3 are set in the top layer of the close first external surface 1a in fire-resistant basic unit 1 and the top layer of close second external surface 1b respectively, and become to be symmetrical arranged between the fiberglass gridding cloth 31 of two combined type grid ribs layers 3, another combined type grid ribs layer 3 is set in fire-resistant basic unit 1 with the form being symmetrical in the first external surface 1a and the second external surface 1b.
Further, adhesive structure is adopted between this layer of fiberglass gridding cloth 31 of described combined type grid ribs layer 3.
Further, the number of plies scope of fiberglass gridding cloth 31 included by described combined type grid ribs layer 3 be 2 layers to the number of plies of in 10 layers, included by each combined type grid ribs layer 3, the number of plies of fiberglass gridding cloth 31 is equal.
Further, the aperture size of each layer fiberglass gridding cloth 31 of same combined type grid ribs layer 3 is equal, the warp of each layer fiberglass gridding cloth 31 in each layer fiberglass gridding cloth 31 of same combined type grid ribs layer 3 staggers setting mutually, and the parallel of each layer fiberglass gridding cloth 31 in each layer fiberglass gridding cloth 31 of same combined type grid ribs layer 3 staggers setting mutually.
Further, integral multiple is become to adjust between the aperture size of each layer fiberglass gridding cloth 31 of same combined type grid ribs layer 3, the warp of each layer fiberglass gridding cloth 31 in each layer fiberglass gridding cloth 31 of same combined type grid ribs layer 3 staggers setting mutually, and the parallel of each layer fiberglass gridding cloth 31 in each layer fiberglass gridding cloth 31 of same combined type grid ribs layer 3 staggers setting mutually.
Further, every root warp of described fiberglass gridding cloth 31 comprises at least one filament of glass fiber, and every root parallel comprises at least one filament of glass fiber.
Further, shrinkage-compensating agent and/or high temperature reinforcing agent is added with in described fire-resistant basic unit 1.
Further, described paper layer 2 is fire prevention mask paper.
Refractory plasterboard of the present utility model, by being set in the combined type grid ribs layer be made up of with overlapped way the fiberglass gridding cloth that heat resistance is strong in fire-resistant basic unit, improving the intensity of refractory plasterboard, meets fiery stability and fire endurance performance.Meanwhile, become to be symmetrical arranged between the fiberglass gridding cloth by combined type grid ribs layer, make the uniform intensity distribution of refractory plasterboard, improve and meet fiery stability and fire endurance.And it can produce on conventional Thistle board production line equipment.In addition, by adding shrinkage-compensating agent and/or high temperature reinforcing agent in fire-resistant basic unit, the stereomutation caused because gypsum shrinks is reduced, to extend the time that gypsum plank keeps globality.
Accompanying drawing explanation
Fig. 1 is the part section floor map of the structure of the first embodiment of high strength gypsum plate of the present utility model, and it have employed the structure of two combined type grid ribs layers 3.
Fig. 2 is the part section floor map of the structure of the second embodiment of the utility model high strength gypsum plate, and it have employed the structure of three combined type grid ribs layers 3.
Fig. 3 is the sectional perspective schematic diagram of a kind of structural concept of the first embodiment of the high strength gypsum plate of the present utility model shown in Fig. 1 or Fig. 2 or the combined type grid ribs layer 3 of the second embodiment, combined type grid ribs layer 3 shown in figure adopts triplex glass fibrous mesh cloth 31, and the size of mesh opening of each layer fiberglass gridding cloth 31 is identical.
Fig. 4 is the partial structurtes schematic perspective view of the fiberglass gridding cloth 31 of a kind of structural concept of the combined type grid ribs layer 3 of the high strength gypsum plate of the present utility model shown in Fig. 3.
Fig. 5 is the STRUCTURE DECOMPOSITION schematic diagram of the combined type grid ribs layer 3 of the high strength gypsum plate of the present utility model shown in Fig. 3, shown in figure 3 layer fiberglass gridding cloth 31 represents with 31a, 31b and 31c respectively, 3 layers of fiberglass gridding cloth 31a, 31b and 31c form combined type grid ribs Rotating fields in stacked mode, there is not braiding relation between each layer fiberglass gridding cloth (31a, 31b and 31c).
Detailed description of the invention
Below in conjunction with the embodiment that Fig. 1 to Fig. 5 provides, further illustrate the detailed description of the invention of the utility model refractory plasterboard.The description that detailed description of the invention of the present utility model is not limited to following examples is bright.
First embodiment of refractory plasterboard of the present utility model shown in Figure 1, it comprises fire-resistant basic unit 1,2 paper layers 2 of the first external surface 1a being bonded in fire-resistant basic unit 1 respectively and the second external surface 1b, 2 the combined type grid ribs layers 3 be set in fire-resistant basic unit 1, second embodiment of refractory plasterboard of the present utility model shown in Figure 2, it comprises fire-resistant basic unit 1,2 paper layers 2 of the first external surface 1a being bonded in fire-resistant basic unit 1 respectively and the second external surface 1b, 3 the combined type grid ribs layers 3 be set in fire-resistant basic unit 1.Increase the number of combined type grid ribs layer 3, namely refractory plasterboard of the present utility model comprises the multiple combined type grid ribs layers 3 be set in fire-resistant basic unit 1, effectively can promote the intensity of refractory plasterboard, meet fiery stability and fire endurance performance, but not only in this, each combined type grid ribs layer 3 of the present utility model also comprises compound glass fibrous mesh cloth 31, described fiberglass gridding cloth 31 is that base material braiding forms by glass fiber, described fiberglass woven fabric has stronger heat resistance, than general fibre, there is better refractoriness, intensity still can be able to be kept constant at 200 DEG C-250 DEG C, play the effect improving refractory plasterboard intensity and meet fiery stability equally.Described fiberglass gridding cloth 31, based on glass fiber, also suitably can be mixed into other fibrous materials of part.Simultaneously, by the structure of multiple combined type grid ribs layer 3, and the combined type grid ribs layer 3 to be made up of in stacked mode compound glass fibrous mesh cloth 31, the distribution density that not only can realize the fiberglass gridding muscle in refractory plasterboard does not limit by the weaving process of existing fiberglass gridding cloth, the distribution density of grid ribs is made arbitrarily to set as required and to arrive desired level, but also the distribution consistency degree that can realize the fiberglass gridding muscle in refractory plasterboard reaches optimum degree, make refractory plasterboard obviously can reduce temperature distortion at 800 DEG C, and can also improve gypsum core drawknot efficiency together, to extend the time that gypsum plank keeps globality, fiery for chance stability is brought up to much larger than 20 minutes, fire endurance brings up to the level being greater than 1 hour.
See Fig. 1 and Fig. 2,2 described paper layers 2 preferably adopt conventional fire prevention mask paper, and the first external surface 1a of available known method and fire-resistant basic unit 1, the second external surface 1b bond.In the case of the first embodiment as shown at figure 1, described refractory plasterboard comprises 2 combined type grid ribs layers 3,2 combined type grid ribs layers 3 are set in the top layer of the close first external surface 1a in fire-resistant basic unit 1 and the top layer of close second external surface 1b respectively, and become to be symmetrical arranged between the fiberglass gridding cloth 31 of two combined type grid ribs layers 3.This symmetrically arranged advantage is: the uniform intensity distribution making refractory plasterboard; The internal stress of the refractory plasterboard caused by production technology is evenly distributed; Make the STRESS VARIATION of being heated of refractory plasterboard even, thus refractory plasterboard can be extended from the time being heated to cracking, meet fiery stability and fire endurance to improve.When the second embodiment shown in Fig. 2, described refractory plasterboard comprises 3 combined type grid ribs layers 3, wherein two combined type grid ribs layers 3 are set in the top layer of the close first external surface 1a in fire-resistant basic unit 1 and the top layer of close second external surface 1b respectively, and become to be symmetrical arranged between the fiberglass gridding cloth 31 of two combined type grid ribs layers 3, another combined type grid ribs layer 3 is set in fire-resistant basic unit 1 with the form being symmetrical in the first external surface 1a and the second external surface 1b.Obviously, such setting is still and is symmetrical arranged, and it has the advantage identical with the first embodiment equally, that is: make the uniform intensity distribution of refractory plasterboard; The internal stress of the refractory plasterboard caused by production technology is evenly distributed; Make the STRESS VARIATION of being heated of refractory plasterboard even, thus refractory plasterboard can be extended from the time being heated to cracking, meet fiery stability and fire endurance to improve.But, because the second embodiment adds a middle combined type grid ribs layer 3, its fire resistance is more better than the first embodiment, because centre combined type grid ribs layer 3 is for making refractory plasterboard obviously can reduce temperature distortion at 800 DEG C and can also improving gypsum core drawknot efficiency together, keep time of globality to extend gypsum plank, the fiery stability of chance is brought up to much larger than 20 minutes, fire endurance brings up to the level being greater than 1 hour and has very large contribution.
See the embodiment shown in Fig. 3 to Fig. 5, each combined type grid ribs layer 3 comprises 3 layers of fiberglass gridding cloth 31,3 layers of fiberglass gridding cloth 31 represent with 31a, 31b and 31c respectively, the interlayer of each layer fiberglass gridding cloth 31 adopts adhesive structure, in other words, fiberglass gridding cloth 31a, there is not braiding relation between fiberglass gridding cloth 31b and fiberglass gridding cloth 31c.So-called adhesive structure comprises two kinds of modes: together with a kind of fiberglass gridding cloth 31a, fiberglass gridding cloth 31b and fiberglass gridding cloth 31c are directly set in respectively by fire-resistant basic unit 1; Another kind is bonded together by slurry.Each layer fiberglass gridding cloth 31 of front a kind of mode lays setting respectively in stacked mode, and namely fiberglass gridding cloth 31a, fiberglass gridding cloth 31b and fiberglass gridding cloth 31c are deployed to respectively in the fire-resistant basic unit 1 of ot-yet-hardened on refractory plasterboard production line; Each layer fiberglass gridding cloth 31 of a kind of mode then lays setting in stacked mode simultaneously, namely fiberglass gridding cloth 31a, fiberglass gridding cloth 31b and fiberglass gridding cloth 31c are first by slurry bonding one-tenth combined type grid ribs layer 3, are then deployed in the fire-resistant basic unit 1 of ot-yet-hardened by combined type grid ribs layer 3 on refractory plasterboard production line.No matter adopt which kind of mode, the structure laid by stacked mode, combined type grid ribs layer 3 can be formed in fire-resistant basic unit 1, and described combined type grid ribs layer 3 is set in wherein by fire-resistant basic unit 1.Obviously, this combined type grid ribs layer 3 be set in fire-resistant basic unit 1 has the booster action of built-in muscle, although it may be in the top layer of the close first external surface 1a in fire-resistant basic unit 1 or the top layer of close second external surface 1b, but solidify the structure of bonding, make combined type grid ribs layer 3 still have the booster action of very strong built-in muscle.Should understand, the multiple combined type grid ribs layers 3 be set in fire-resistant basic unit 1 are structures of a kind of built-in muscle, its be different from completely be arranged on fire-resistant basic unit with docile or other modes surface on the structure of enhancement Layer, because the structure of this set enhancement Layer on the surface of fire-resistant basic unit is if not being set in fire-resistant basic unit, then it can not have the booster action of built-in muscle.Included by each combined type grid ribs layer 3 of the embodiment that Fig. 1 to Fig. 5 provides, the number of plies of fiberglass gridding cloth 31 is 3 layers, but the number of plies of fiberglass gridding cloth 31 included by combined type grid ribs layer 3 of the present utility model is 3 layers and is not limited to 3 layers, but, the too much number of plies can increase processing cost, and the very few number of plies effectively can not increase density, thus, preferred number of plies scope be 2 layers to the number of plies of in 10 layers, as: the number of plies of the fiberglass gridding cloth 31 included by double-layer combined grid ribs layer 3 is 2 layers, the number of plies of the fiberglass gridding cloth 31 included by three-layer combined grid ribs layer 3 is 3 layers, the number of plies of the fiberglass gridding cloth 31 included by four layer composite grid ribs layers 3 is 4 layers, the number of plies of the fiberglass gridding cloth 31 included by ten layer composite grid ribs layers 3 is 10 layers.
The aperture size of each layer fiberglass gridding cloth 31 of same combined type grid ribs layer 3 is equal, distance J between adjacent two warps of i.e. each layer fiberglass gridding cloth 31 of same combined type grid ribs layer 3 is equal, and the distance I between adjacent two parallels is equal, such structure is conducive to the specification of unified fiberglass gridding cloth 31.The warp of each layer fiberglass gridding cloth 31 in each layer fiberglass gridding cloth 31 of same combined type grid ribs layer 3 staggers setting mutually, and namely the warp of each layer fiberglass gridding cloth 31 is not overlapping; The parallel of each layer fiberglass gridding cloth 31 in each layer fiberglass gridding cloth 31 of same combined type grid ribs layer 3 staggers setting mutually, and namely the parallel of each layer fiberglass gridding cloth 31 is not overlapping.Obviously, described mutually staggering is arranged so that being evenly distributed of warp, parallel.But, the warp meeting each layer fiberglass gridding cloth 31 staggers setting mutually, the parallel of each layer fiberglass gridding cloth 31 staggers the structure arranged mutually, can also be in the following way, integral multiple is become to adjust between the aperture size of each layer fiberglass gridding cloth 31 of same combined type grid ribs layer 3, that is: the distance J between adjacent two warps of same layer fiberglass gridding cloth 31 is equal, but become integral multiple relation between the distance between adjacent two warps of different layers fiberglass gridding cloth 31, as fiberglass gridding cloth 31a adjacent two warps between distance be fiberglass gridding cloth 31b adjacent two warps between 2 times of distance, distance I between adjacent two parallels of same layer fiberglass gridding cloth 31 is equal, but become integral multiple relation between the distance between adjacent two parallels of different layers fiberglass gridding cloth 31, as fiberglass gridding cloth 31a adjacent two parallels between distance be fiberglass gridding cloth 31b adjacent two parallels between 2 times of distance.Under becoming the condition of integral multiple relation between distance between adjacent two warps of different layers fiberglass gridding cloth 31, the warp of each layer fiberglass gridding cloth 31 in each layer fiberglass gridding cloth 31 of same employing same combined type grid ribs layer 3 staggers setting mutually, the parallel of each layer fiberglass gridding cloth 31 in each layer fiberglass gridding cloth 31 of same combined type grid ribs layer 3 staggers setting mutually, and the parallel realizing not overlapping, each layer fiberglass gridding cloth 31 of warp of each layer fiberglass gridding cloth 31 is not overlapping.
The fiber type of described fiberglass gridding cloth 31 preferably adopts filament of glass fiber.Every root warp comprises at least one filament of glass fiber, and namely every root warp is the glass fiber bundle comprising at least one filament of glass fiber, or the glass wire for being pooled capital by many filament of glass fiber.Every root parallel comprises at least one filament of glass fiber, and namely every root parallel is the glass fiber bundle comprising at least one filament of glass fiber, or the glass wire for being pooled capital by many filament of glass fiber.The monofilament quantity of every root warp or parallel can set according to the requirement of strength of grid ribs layer, but because combined type grid ribs layer 3 of the present utility model have employed the structure that overlapped way is composited, so the structure of the unlike existing fiberglass gridding cloth of the intensity of combined type grid ribs layer 3, only depend on the warp of single fiberglass gridding cloth and the monofilament quantity of parallel and density, but obtain the warp of combined type grid ribs layer 3 and the ideal density of parallel by the number of plies increasing fiberglass gridding cloth 31, therefore, the structure of combined type grid ribs layer 3 of the present utility model, make the distribution density of the warp of fiberglass gridding cloth 31 or the monofilament quantity of parallel and warp or parallel, can determine according to the woven performance of the stitchability of glass fiber and existing fiberglass woven cloth equipment, make the damage of glass fiber in the activities of woven molding glass fibrous mesh cloth 31 minimum, the micro-crack that the glass fiber caused by weaving produces is minimum, make the existing equipment of weaving cotton cloth can give play to best woven performance, to guarantee product quality and the production efficiency of fiberglass gridding cloth 31.Because combined type grid ribs layer 3 of the present utility model have employed the structure that overlapped way is composited, so the warp of combined type grid ribs layer 3 and the density of parallel not exclusively depend on the warp of fiberglass gridding cloth 31 and the distribution density of parallel, but depend on fiberglass gridding cloth 31 number of plies, therefore, the warp of combined type grid ribs layer 3 of the present utility model and the distribution density of parallel, the restriction of the warp of fiberglass gridding cloth 31 and the distribution density of parallel can not be subject to, distance j between adjacent two warps of the combined type grid ribs layer 3 be namely associated with the distribution density of combined type grid ribs the layer 3 and distance i between adjacent two parallels can arbitrarily set as required, theoretically, distance j between adjacent two warps of combined type grid ribs the layer 3 and distance i between adjacent two parallels can be zero or negative value (namely overlapping situation), and distance J between adjacent two warps of the fiberglass gridding cloth 31 and distance I between adjacent two parallels cannot realize the situation of zero or negative value, on the contrary, for meeting weaving, distance between adjacent two parallels of Distance geometry between adjacent two warps of existing fiberglass gridding cloth can not be less than the magnitude of tens millimeters usually.
To sum up finding, because the utility model have employed the multiple combined type grid ribs layers 3 be set in fire-resistant basic unit 1, and each combined type grid ribs layer 3 comprises the structure of compound glass fibrous mesh cloth 31, thus solve the single grid cloth of prior art as reinforcing rib can not meet refractory plasterboard mechanical strength, meet the problem that fiery stability and fire endurance require.In order to improve the fire resistance of refractory plasterboard further, being added with shrinkage-compensating agent and/or high temperature reinforcing agent in described fire-resistant basic unit 1, that is: being added with shrinkage-compensating dosage; Or be added with high temperature reinforcing agent; Or be added with shrinkage-compensating agent and/or high temperature reinforcing agent.Shrinkage-compensating agent and high temperature reinforcing agent can adopt general product, after adding shrinkage-compensating agent and high temperature reinforcing agent, glass fiber can be made further to keep good intensity in the low-temperature zone of fire resistance test, keep complete to make gypsum board core, during to high temperature section, shrinkage-compensating agent makes gypsum board core produce tiny unicorn shape crackle, the shrinkage stress of dispersion gypsum board core, stop the generation of large fracture in length and breadth, and high temperature reinforcing agent meeting tractive squamous crack, slow down gypsum board core squamous to come off, until gypsum board core crystalline network structures destroys, gypsum board core just can be peeled off in efflorescence, lose fire insulation ability, delay crackle to fracture development.
By being set in the multiple combined type grid ribs layers 3 in fire-resistant basic unit 1, and each combined type grid ribs layer 3 comprises the structure of compound glass fibrous mesh cloth 31, and the characteristic of fire-resistant basic unit 1, particularly be added with the fire-resistance property of shrinkage-compensating agent and/or the fire-resistant basic unit 1 of high temperature reinforcing agent, refractory plasterboard can be made at 800 DEG C obviously to reduce temperature distortion, reduce the stereomutation caused because gypsum shrinks, and can also improve gypsum core drawknot efficiency together, to extend the time that gypsum plank keeps globality, fiery for chance stability is brought up to much larger than 20 minutes, fire endurance brings up to the level being greater than 1 hour.
Above content is in conjunction with concrete preferred embodiment further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, some simple deduction or replace can also be made, all should be considered as belonging to protection domain of the present utility model.
Claims (10)
1. a refractory plasterboard, comprises 2 paper layers of fire-resistant basic unit, the first external surface being bonded in fire-resistant basic unit respectively and the second external surface, it is characterized in that: described refractory plasterboard also comprises the multiple combined type grid ribs layers be set in fire-resistant basic unit;
It is the fiberglass gridding cloth that base material weaves that described each combined type grid ribs layer comprises multilayer by glass fiber.
2. refractory plasterboard according to claim 1, it is characterized in that: described refractory plasterboard comprises 2 combined type grid ribs layers, 2 combined type grid ribs layers are set in the top layer of close first external surface in fire-resistant basic unit and the top layer of close second external surface respectively, and become to be symmetrical arranged between the fiberglass gridding cloth of two combined type grid ribs layers.
3. refractory plasterboard according to claim 1, it is characterized in that: described refractory plasterboard comprises 3 combined type grid ribs layers, wherein two combined type grid ribs layers are set in the top layer of close first external surface in fire-resistant basic unit and the top layer of close second external surface respectively, and become to be symmetrical arranged between the fiberglass gridding cloth of two combined type grid ribs layers, another combined type grid ribs layer is set in fire-resistant basic unit with the form being symmetrical in the first external surface and the second external surface.
4. refractory plasterboard according to claim 1, is characterized in that: adopt adhesive structure between this layer of fiberglass gridding cloth of described combined type grid ribs layer.
5. refractory plasterboard according to claim 1, it is characterized in that: the number of plies scope of fiberglass gridding cloth included by described combined type grid ribs layer be 2 layers to the number of plies of in 10 layers, included by each combined type grid ribs layer, the number of plies of fiberglass gridding cloth is equal.
6. refractory plasterboard according to claim 1, it is characterized in that: the aperture size of each layer fiberglass gridding cloth of same combined type grid ribs layer is equal, the warp of each layer fiberglass gridding cloth in each layer fiberglass gridding cloth of same combined type grid ribs layer staggers setting mutually, and the parallel of each layer fiberglass gridding cloth in each layer fiberglass gridding cloth of same combined type grid ribs layer staggers setting mutually.
7. refractory plasterboard according to claim 1, it is characterized in that: between the aperture size of each layer fiberglass gridding cloth of same combined type grid ribs layer, become integral multiple to adjust, the warp of each layer fiberglass gridding cloth in each layer fiberglass gridding cloth of same combined type grid ribs layer staggers setting mutually, and the parallel of each layer fiberglass gridding cloth in each layer fiberglass gridding cloth of same combined type grid ribs layer staggers setting mutually.
8. refractory plasterboard according to claim 1, is characterized in that: every root warp of described fiberglass gridding cloth comprises at least one filament of glass fiber, and every root parallel comprises at least one filament of glass fiber.
9. refractory plasterboard according to claim 1, is characterized in that: be added with shrinkage-compensating agent and/or high temperature reinforcing agent in described fire-resistant basic unit.
10. refractory plasterboard according to claim 1, is characterized in that: described paper layer is fire prevention mask paper.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420243117.8U CN204112578U (en) | 2014-05-13 | 2014-05-13 | Refractory plasterboard |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420243117.8U CN204112578U (en) | 2014-05-13 | 2014-05-13 | Refractory plasterboard |
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| CN204112578U true CN204112578U (en) | 2015-01-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953158A (en) * | 2014-05-13 | 2014-07-30 | 景泰县金龙化工建材有限公司 | Fire-resistant gypsum board |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953158A (en) * | 2014-05-13 | 2014-07-30 | 景泰县金龙化工建材有限公司 | Fire-resistant gypsum board |
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