CN213626113U - Polyurea spraying composite insulation board - Google Patents
Polyurea spraying composite insulation board Download PDFInfo
- Publication number
- CN213626113U CN213626113U CN202021017803.5U CN202021017803U CN213626113U CN 213626113 U CN213626113 U CN 213626113U CN 202021017803 U CN202021017803 U CN 202021017803U CN 213626113 U CN213626113 U CN 213626113U
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- Prior art keywords
- polyurea
- layer
- insulation board
- composite insulation
- waterproof
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- 229920002396 Polyurea Polymers 0.000 title claims abstract description 82
- 238000009413 insulation Methods 0.000 title claims abstract description 75
- 239000002131 composite material Substances 0.000 title claims abstract description 52
- 238000005507 spraying Methods 0.000 title claims abstract description 24
- 239000004576 sand Substances 0.000 claims abstract description 26
- 229920002635 polyurethane Polymers 0.000 claims description 30
- 239000004814 polyurethane Substances 0.000 claims description 30
- 238000000576 coating method Methods 0.000 claims description 28
- 239000011248 coating agent Substances 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 14
- 229920001971 elastomer Polymers 0.000 claims description 5
- 229920006389 polyphenyl polymer Polymers 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 3
- 238000004321 preservation Methods 0.000 abstract description 14
- 230000002265 prevention Effects 0.000 abstract description 7
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- 239000000853 adhesive Substances 0.000 description 4
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
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- 239000011325 microbead Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 239000004970 Chain extender Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
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- MKPXGEVFQSIKGE-UHFFFAOYSA-N [Mg].[Si] Chemical compound [Mg].[Si] MKPXGEVFQSIKGE-UHFFFAOYSA-N 0.000 description 1
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- 239000008187 granular material Substances 0.000 description 1
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- 229920000570 polyether Polymers 0.000 description 1
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Abstract
The utility model relates to a polyurea spraying composite insulation board, a serial communication port polyurea spraying composite insulation board includes five layer structures at least, is apparent layer of fire prevention sand, polyurea waterproof layer, heat preservation, polyurea waterproof layer and fire prevention sand respectively from top to bottom. The polyurea spraying composite insulation board is of a five-layer structure in any two parallel directions of which the two mutually opposite surfaces are opposite. The application provides polyurea spraying composite insulation board including five layers of structures at least, the add-on the apparent layer of fire prevention sand provides the excellent fire behavior of composite insulation board, the plate body is five layers of structures on the cross section of crossing arbitrary a set of opposite face simultaneously, the fire behaviour between interior wall and the outer wall has fire behaviour and waterproof permeability still between the adjacent heated board about not only providing fire behavior between interior wall and the outer wall, even if remaining clearance between the heated board or because of being heated also can guarantee better fire behavior and waterproof performance under the condition of deformation.
Description
Technical Field
The utility model relates to a building board technical field especially relates to a polyurea spraying composite insulation board.
Background
Waterproof insulation material generally is multilayer composite construction, at present, generally adopts polyethylene, plaster sizing agent as the waterproof layer, and the waterproof layer waterproof performance of this kind of material is deficient on the one hand, and on the other hand when it is fixed with the heat preservation bonding, can be because the base surface is uneven and appear the gap when arousing to paste, influences water-proof effects, and the cohesive force of insulation material and waterproof material also probably appears not enoughly simultaneously.
In the prior art, a waterproof and anticorrosive insulation board as proposed in patent document with publication number CN202170575U includes an insulation board and a waterproof and anticorrosive layer, wherein the waterproof and anticorrosive layer is arranged on the surface of the insulation board. The waterproof anticorrosive layer is glued or coated on the surface of the heat-insulation board. The heat insulation board is a polyurethane heat insulation board, and the waterproof anticorrosive layer is a polyurea layer. However, the polyurea waterproof layer is mainly used for waterproof and wear-resistant coatings, the fireproof performance level is low, the polyurea waterproof layer cannot be used as a fireproof coating, and the fireproof performance cannot be provided; and when polyurea layer and heat preservation bonded fixedly, because the heat preservation face is uneven and appear the surface pinhole when leading to pasting easily, influence water-proof effects, simultaneously because polyurea coating can be in 10 ~ 40s internal curing, it is poor to the wettability of heated board to lead to its solidification back polyurea coating, and the adhesion force between heat preservation and the polyurea layer is not enough, easily causes polyurea coating and heated board interface to break away from.
Furthermore, on the one hand, due to the differences in understanding to the person skilled in the art; on the other hand, since the inventor studied a lot of documents and patents when making the present invention, but the space did not list all details and contents in detail, however, this is by no means the present invention does not possess these prior art features, but on the contrary the present invention has possessed all features of the prior art, and the applicant reserves the right to increase the related prior art in the background art.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems that a waterproof layer in the prior art is poor in waterproof performance and insufficient in bonding performance with a heat preservation plate base material, in the waterproof and anticorrosive heat preservation plate provided by the patent document with the publication number of CN202170575U in the prior art, a composite structure of the heat preservation plate and a polyurea waterproof layer is adopted, however, a single polyurea waterproof layer is mainly used for waterproof and wear-resistant coatings, cannot be used as a fireproof coating and cannot provide fireproof performance; and when polyurea layer and heat preservation bonded fixedly, the adhesion between heat preservation and the polyurea layer was not enough, easily caused polyurea coating and heated board interface to break away from, seriously influenced water-proof effects. To this, this application provides a polyurea spraying composite insulation board, its characterized in that polyurea spraying composite insulation board includes five layer structures at least, is fire prevention sand apparent layer, polyurea waterproof layer, heat preservation, polyurea waterproof layer and fire prevention sand apparent layer respectively from top to bottom. According to a preferred embodiment, any two of the polyurea spraying composite insulation boards are of five-layer structures in the parallel direction of the opposite surfaces.
The application provides polyurea spraying composite insulation board including five layer construction at least to the heated board is as main part mechanism, and polyurea waterproof layer parcel is outside at the heated board, and heat preservation effect and water-proof effects are good, and the add on apparent layer of fire prevention sand provides the excellent fire behavior of composite insulation board, can be so that composite insulation board's whole fire-retardant grade reaches A level requirement. Simultaneously the composite insulation board that this application provided is the all-round formula spraying, and the plate body is five layer structures on the cross section of crossing arbitrary a set of opposite face, has not only provided fire behaviour between interior wall and the outer wall and still has fire behaviour and waterproof permeability between the adjacent heated board about making, even remaining clearance or also can guarantee better fire behavior and waterproof performance because of being heated under the condition of deformation between the heated board after the assembly.
According to a preferred embodiment, the polyurea waterproof layer has a thickness of 0.5 to 3 mm. The waterproof layer is moderate in thickness, materials are saved, the polyurea waterproof layer is small in shrinkage stress within the thickness range, and the cohesive force performance is good.
According to a preferred embodiment, the fire-resistant sand appearance layer comprises one or a combination of weathered sand, washed-out sand, construction sand. Polyurea water barriers are mainly used for water-proof and wear-resistant coatings, which cannot be used as fire-resistant coatings. To this, each terminal surface of composite insulation board's outmost in this application is fire prevention sand apparent layer, can effectively prevent spreading of intensity of a fire when catching fire to the apparent layer of comprehensive parcel formula can play more excellent dual protection effect.
According to a preferred embodiment, a polyurea bottom coating is further arranged between the heat-insulating layer and the polyurea waterproof layer. Because polyurea coating can solidify in 10 ~ 40s, it is poor to the wettability of heated board to its polyurea coating after solidifying, and is low to the adhesion strength of heated board, often causes polyurea coating and heated board interface to break away from. Therefore, the composite insulation board is further sprayed with a polyurea bottom coating between the polyurea waterproof layers, the polyurea bottom coating has certain permeability and can penetrate into small gaps or microcracks of the insulation board and fill the small gaps or microcracks, water vapor and air in the insulation board structure are sealed, and the interface bonding layer can be effectively prevented from being damaged; meanwhile, the polyurea bottom coating has good compatibility with the materials of the heat-insulating layer and the polyurea waterproof layer respectively, and the adhesive force of the interfaces at two sides can be effectively enhanced.
According to a preferred embodiment, the polyurea base coat comprises one or a combination of several of a polyurethane primer, an epoxy-polyurethane primer.
The epoxy resin primer has a plurality of hydroxyl groups, ether bonds and good permeability, can attract each other and bridge with the board surface of the insulation board, and increases the adhesive force of the primer. The polyurethane primer is better in film forming after being cured at a low temperature, has stronger binding force and sealing capacity with the surface of the insulation board, and can greatly reduce the problem of pinholes on the surface of the polyurea waterproof layer. The epoxy-polyurethane primer refers to a composite primer prepared from TDI (toluene diisocyanate), epoxy resin, filler, auxiliaries and solvent. The epoxy-polyurethane primer utilizes polyurethane elastic groups dispersed in a rigid epoxy body type framework to improve the toughness of the primer layer, and is beneficial to enhancing the adaptability of the primer layer to the shrinkage deformation of the heat-insulation board base material. Compared with single polyurethane primer or epoxy resin primer, the epoxy-polyurethane primer has better adhesive force and bonding strength to the base material of the heat-insulating plate, and the composite heat-insulating plate has long service life.
According to a preferred embodiment, the polyurea base coat comprises a base layer and a top coat layer of different materials from each other.
When coating the polyurea base coat, firstly, one polyurea base coat is utilized to carry out primary spraying to form a base layer, and then, the other polyurea base coat is utilized to carry out secondary spraying to form a recoating layer. Preferably, the base layer is an epoxy primer and the top coat is an epoxy-urethane primer. Under the arrangement, the remarkable reinforcing effect and the permeability of the epoxy resin primer on the base material of the heat preservation board can be fully exerted, and the insufficient material compatibility between the single epoxy resin primer and the polyurea is compensated by means of the strong bonding strength and the adhesive force of the epoxy-polyurethane primer, so that the waterproof performance of the polyurea waterproof layer is further ensured.
According to a preferred embodiment, a buffer layer is further disposed between the polyurea waterproof layer and the fire-resistant sand appearance layer. According to a preferred embodiment, the buffer layer may be rubber powder polyphenyl particles.
The heat conductivity coefficient of the rubber powder polyphenyl granules adopted by the application is between the heat insulation board and the apparent layer of the fireproof sand, so that the heat insulation board can be effectively buffered, the shrinkage deformation caused by the change of the external temperature brings great deformation stress to the apparent layer of the fireproof sand, and the cracking problem of the composite heat insulation board is improved.
According to a preferred embodiment, polyurethane tubes are filled in the gaps between every two composite insulation boards.
At least one polyurethane pipe is put into in the clearance between adjacent composite insulation board in this application. When the composite heat-insulation board is deformed due to heating, the shrinkage deformation of the upper end face and the lower end face of the composite heat-insulation board is mainly buffered through the buffer layers. When the compound insulation board is because of being heated under the state that produces deformation, to the shrink deformation of four sides all around the compound insulation board, the mutual extruded reaction force of compound insulation board each other will act on the polyurethane pipe, through polyurethane pipe deformation and with reaction force buffering release on the polyurethane pipe to reduce the reaction force between the compound insulation board. Meanwhile, the polyurethane has good heat insulation performance, so that the heat insulation performance of a heat insulation layer formed by a plurality of composite heat insulation boards is facilitated.
When a plurality of composite insulation boards are spliced to form an outer wall insulation layer, a gap of about 15-19 mm is reserved between every two composite insulation boards. Weather-proof glue is coated on gaps among the composite heat-insulation boards, and then a plurality of polyurethane pipes with the outer diameters meeting the size of the gaps are placed in the gaps. The plurality of polyurethane pipes are arranged in parallel in the thickness direction of the composite heat-insulating plate. If the polyurethane pipe to be placed later exceeds the plate surface of the composite insulation board, the polyurethane pipe is not placed again, and the remaining gap space is filled with weather-resistant glue.
Drawings
Fig. 1 is a simplified internal structure cross-sectional structural view of the composite insulation board provided by the present invention; and
fig. 2 is a simplified sectional structure diagram of the internal structure of a composite insulation board according to another preferred embodiment of the present invention.
List of reference numerals
1: apparent layer 2 of fire-proof sand: polyurea waterproof layer
3: insulating layer 4: polyurea base coat
5: buffer layer 6: polyurethane tube
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 shows a simplified sectional structure diagram of the internal structure of the composite heat-insulating board provided by the present invention. The main part of the composite heat insulation board is a heat insulation layer 3. The insulation layer 3 includes, but is not limited to, various organic and inorganic insulation boards, felts, etc., such as polystyrene molded board, polystyrene extruded board, rock wool board felt, phenol formaldehyde board, glass wool board felt, aluminum silicate board felt, aerogel board felt, polyurethane board, silicon magnesium board, gold board, polymerized polystyrene board, graphite polystyrene board, stp (super Thin panel) ultra-Thin vacuum insulation board, cement foamed board, rubber plastic board, YT inorganic active wall insulation board, etc. Preferably, a polystyrene molded plate or a graphite polystyrene plate is selected as the insulating layer 3.
As shown in fig. 2, before the polyurea waterproof layer 2 is sprayed, a polyurea primer layer 4 is sprayed on either end surface of the exterior of the insulation layer 3 including the panel body. The polyurea base coat layer 4 includes a base layer and a topcoat layer which are different in material from each other. Polyurea base coat 4 comprises one or a combination of polyurethane primers, epoxy-polyurethane primers. Preferably, in applying the polyurea base coat 4, a first spray coating with an epoxy primer is performed to form a base layer, and a second spray coating with an epoxy-urethane primer is performed to form a recoat layer.
And spraying and forming a polyurea waterproof layer 2 on the insulation board covered with the polyurea bottom coating 4. The spray polyurea waterproof coating is a bi-component waterproof coating which is composed of isocyanate semi-prepolymer (A component), amine-terminated polyether, amine chain extender, pigment, filler, auxiliary agent and the like (R component). During construction, the paint is conveyed to a spray gun by a metering pump, is sprayed to the surface of a base layer after being rapidly mixed, and is rapidly reacted and solidified into a waterproof and wear-resistant coating film with high elasticity and toughness. The spray polyurea waterproof coating is a novel dual-component waterproof coating which has no solvent, no volatile matter and high solid content (up to 100%). The composite spraying polyurea waterproof anticorrosive paint on the base material can achieve the effects of corrosion resistance, water resistance, moisture insulation, surface layer strength increase, bending resistance and the like. Preferably, the polyurea coating with the solid content of more than or equal to 98 percent, the tensile strength of more than or equal to 10MPa, the elongation of more than or equal to 400 percent, the impermeability for 2 hours and the heating shrinkage of less than or equal to 1 percent is selected. Preferably, the thickness of the polyurea waterproof layer 2 is 2.1-2.5 mm.
And (3) spraying and coating the insulation board covered with the polyurea waterproof layer 2 to form a buffer layer 5. Preferably, rubber powder polyphenyl particles are selected as the buffer layer 5.
And spraying and coating the insulation board covered with the buffer layer 5 to form the apparent layer 1 of the fireproof sand. The apparent layer 1 of fire-proof sand includes but is not limited to weathered sand, washed sand, building sand, vitrified micro-bead fire-proof sand and other various materials capable of increasing friction and flame-retardant effect. Preferably, carborundum or vitrified micro-bead fireproof sand is selected as the fireproof sand apparent layer 1.
When a plurality of composite insulation boards are spliced to form the outer wall heat preservation layer 3, a gap of about 15-19 mm is reserved between every two composite insulation boards. Weather-resistant glue is coated at the gap between the composite heat-insulation plates, and then a plurality of polyurethane pipes 6 with the outer diameters meeting the size of the gap are placed in the gap. The polyurethane pipes 6 are arranged in parallel in the thickness direction of the composite heat-insulating plate. If the polyurethane pipe 6 to be placed later exceeds the plate surface of the composite heat-insulation plate, the polyurethane pipe is not placed again, and the remaining gap space is filled with weather-resistant glue. Preferably, the polyurethane tube 6 with the outer diameter of 19mm is selected to be placed in the gap, and the width of the gap is kept between 19mm and 20 mm.
It should be noted that the above-mentioned embodiments are exemplary, and those skilled in the art can devise various solutions in light of the present disclosure, which are also within the scope of the present disclosure and fall within the scope of the present disclosure. It should be understood by those skilled in the art that the present specification and drawings are illustrative only and are not limiting upon the claims. The scope of the invention is defined by the claims and their equivalents.
Claims (7)
1. A composite heat-insulating board sprayed by polyurea,
it is characterized in that
The polyurea spraying composite insulation board at least comprises five layers of structures, namely a fireproof sand apparent layer (1), a polyurea waterproof layer (2), an insulation layer (3), a polyurea waterproof layer (2) and a fireproof sand apparent layer (1) from top to bottom,
and a polyurea bottom coating (4) is also arranged between the heat-insulating layer (3) and the polyurea waterproof layer (2).
2. The polyurea sprayed composite insulation board according to claim 1, wherein any two of the polyurea sprayed composite insulation boards are of a five-layer structure in a parallel direction with each other facing each other.
3. The polyurea spraying composite insulation board according to claim 2, wherein the thickness of the polyurea waterproof layer (2) is 0.5-3 mm.
4. Polyurea sprayed composite insulation board according to claim 3, characterized in that the polyurea base coat (4) comprises a base layer and a top coat of different materials from each other.
5. The polyurea spraying composite insulation board according to claim 4, wherein a buffer layer (5) is further arranged between the polyurea waterproof layer (2) and the fireproof sand apparent layer (1).
6. The polyurea sprayed composite insulation board according to claim 5, wherein the buffer layer (5) is rubber powder polyphenyl particles.
7. The polyurea spraying composite insulation board according to claim 6, wherein a gap between every two composite insulation boards is filled with a polyurethane pipe (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021017803.5U CN213626113U (en) | 2020-06-05 | 2020-06-05 | Polyurea spraying composite insulation board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021017803.5U CN213626113U (en) | 2020-06-05 | 2020-06-05 | Polyurea spraying composite insulation board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213626113U true CN213626113U (en) | 2021-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021017803.5U Expired - Fee Related CN213626113U (en) | 2020-06-05 | 2020-06-05 | Polyurea spraying composite insulation board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213626113U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114412098A (en) * | 2022-02-17 | 2022-04-29 | 刘光华 | Manufacturing method and construction method of sheet material with anti-corrosion and anti-slip additional layer |
-
2020
- 2020-06-05 CN CN202021017803.5U patent/CN213626113U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114412098A (en) * | 2022-02-17 | 2022-04-29 | 刘光华 | Manufacturing method and construction method of sheet material with anti-corrosion and anti-slip additional layer |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210706 |