CN215802364U - Enhanced high-flatness rock wool heat insulation board and external heat insulation system thereof - Google Patents
Enhanced high-flatness rock wool heat insulation board and external heat insulation system thereof Download PDFInfo
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- CN215802364U CN215802364U CN202123146509.1U CN202123146509U CN215802364U CN 215802364 U CN215802364 U CN 215802364U CN 202123146509 U CN202123146509 U CN 202123146509U CN 215802364 U CN215802364 U CN 215802364U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/24—Structural elements or technologies for improving thermal insulation
- Y02A30/244—Structural elements or technologies for improving thermal insulation using natural or recycled building materials, e.g. straw, wool, clay or used tires
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Abstract
The utility model relates to the field of external thermal insulation structures of building external walls, in particular to a reinforced high-flatness rock wool thermal insulation board and an external thermal insulation system thereof. The heat-insulating cloth comprises inorganic fiber reinforced cloth and a heat-insulating layer spliced by a plurality of rock wool strips; the heat preservation is located between the two-layer inorganic fiber reinforcing cloth, and inorganic fiber reinforcing cloth and heat preservation pass through first polyurethane bonding layer and connect, are equipped with the second polyurethane tie coat between each rock wool strip, and first polyurethane bonding layer and second polyurethane tie coat mutually perpendicular bonding, first polyurethane bonding layer and second polyurethane tie coat and inorganic fiber reinforcing cloth form an organic whole. The utility model has excellent fireproof performance, heat preservation performance and waterproof performance, and the tensile strength in the direction vertical to the plate surface is high, thereby blocking the heat bridge between the rock wool strips, improving the stimulation of the rock wool strip bare strip to the skin, increasing the bonding strength between the rock wool strip bare strip and the bonding mortar and the plastering mortar, improving the wind load resistance of the external heat preservation system of the rock wool strip and enhancing the safety.
Description
Technical Field
The utility model relates to the field of external thermal insulation structures of building external walls, in particular to a reinforced high-flatness rock wool thermal insulation board and an external thermal insulation system thereof.
Background
Along with the requirement of the field of external thermal insulation of building external walls on fire prevention of buildings, rock wool thermal insulation is concerned. The rock wool is divided into rock wool boards and rock wool strips, wherein the rock wool boards are plate-shaped products prepared by spraying and blowing molten igneous rock serving as a main raw material into fibers, adding a proper amount of thermosetting resin adhesive and a water repellent, and pressing, curing and cutting the mixture; the rock wool strip is a strip product which is cut by a rock wool plate at a certain interval and turned for 90 degrees, and the direction of a main fiber layer of the strip product is vertical to the surface. The heat conductivity coefficient of the rock wool board is less than or equal to 0.040W/m.K, the tensile strength perpendicular to the board surface direction is greater than or equal to 10kPa, the heat conductivity coefficient of the rock wool strip is less than or equal to 0.046W/m.K, and the tensile strength perpendicular to the board surface direction is greater than or equal to 100 kPa.
However, traditional rock wool heated board and outer heat preservation system still have some problems, for example rock wool heated board interface does not handle, and the fibre exposes outside, and the tiny fibre of rock wool can produce amazing to personnel's skin when the construction, and reduces the bonding property of rock wool and bonding mortar, plastering mortar, and present field need urgently to develop one kind and have environmental protection, keep warm, prevent fires in an organic whole novel high level and smooth rock wool heated board of the excellent novel reinforcing of physical properties and outer heat preservation system architecture.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model provides a reinforced high-flatness rock wool heat-insulation board and an external heat-insulation system thereof. The reinforced high-flatness rock wool insulation board and the external insulation system structure thereof provided by the utility model have the advantages of integration of safety fire prevention, energy conservation and heat insulation, and better physical property and environmental protection property.
In a first aspect, the utility model provides a reinforced high-flatness rock wool insulation board, which comprises:
1-1 of inorganic fiber reinforced cloth;
and the heat-insulating layer is spliced by rock wool strips 1-3;
the heat-insulating layer is arranged between two layers of inorganic fiber reinforced cloth 1-1, a first polyurethane bonding layer 1-2 is arranged between the inorganic fiber reinforced cloth 1-1 and the heat-insulating layer, a second polyurethane bonding layer 1-4 is arranged between the rock wool strips 1-3, the first polyurethane bonding layer 1-2 and the second polyurethane bonding layer 1-4 are vertically bonded with each other, and the first polyurethane bonding layer, the second polyurethane bonding layer and the inorganic fiber reinforced cloth are integrated.
According to the reinforced high-flatness rock wool insulation board provided by the utility model, the plurality of rock wool strips are densely spliced through the second polyurethane adhesive layer, the inorganic fiber reinforced cloth is adhered to the upper surface and the lower surface of the insulation layer formed by densely splicing the rock wool strips, the first polyurethane adhesive layer is arranged between the inorganic fiber reinforced cloth and the insulation layer, the structure of the reinforced high-flatness rock wool insulation board integrates safety fire prevention, energy conservation and heat preservation, and has good physical performance and environmental protection performance.
In order to further improve the performance effect of the reinforced high-flatness rock wool insulation board, the utility model optimizes the inorganic fiber reinforced cloth and the rock wool strips, and the method specifically comprises the following steps:
preferably, the thickness of the inorganic fiber reinforced cloth 1-1 is 1.0-1.5 mm.
Preferably, the width of the rock wool strips 1-3 is 150-200 mm, the thickness is 50-300 mm, and the length is 600-1200 mm.
Preferably, the inorganic fiber reinforced cloth 1-1 is composed of an alkali-resistant glass fiber mesh cloth and a polymer cement waterproof mortar layer arranged on the outer layer of the alkali-resistant glass fiber mesh cloth.
According to the embodiment provided by the utility model, the polymer cement waterproof mortar has 7-day seepage resistance pressure of more than 0.8MPa, 28-day seepage resistance pressure of more than 1.5MPa, flexibility of more than 2.0mm, water absorption of less than 4.0 percent and 28-day bonding strength of more than 1.2 MPa.
According to the embodiment provided by the utility model, ZrO in the glass component of the alkali-resistant glass fiber mesh cloth2The content is more than 16.0 percent, and the mass per unit area is more than or equal to 160g/m2The alkali-resistant tensile breaking strength (warp direction and weft direction) is more than or equal to 1000N/50mm, the alkali-resistant breaking strength retention rate (warp direction and weft direction) is more than or equal to 50%, and the breaking elongation rate (warp direction and weft direction) is less than or equal to 5.0%.
According to the reinforced high-flatness rock wool heat-insulation board, the first polyurethane adhesive layer 1-2 is preferably a silicon modified flame-retardant micro-foaming polyurethane adhesive, the combustion performance of the adhesive is B1 grade, the foaming multiplying power is 50% -100%, preferably 60% -80%, and the functions of adhesion and heat bridge interruption are achieved.
Further, the second polyurethane bonding layer 1-4 is a micro-foaming flame-retardant polyurethane adhesive, the combustion performance of the adhesive is B1 grade, the foaming ratio is 100% -200%, preferably 120% -180%, and the adhesive, leveling and waterproof functions are achieved.
According to the utility model, the silicon modified flame-retardant polyurethane adhesive and the foamed polyurethane are respectively used as the first polyurethane bonding layer and the second polyurethane bonding layer, so that the comprehensive performance of the reinforced high-flatness rock wool insulation board is further improved.
In the embodiment provided by the utility model, the foamed polyurethane adhesive arranged in the gap between the rock wool strips 1-3 (the gap width is generally more than 1.5mm) can better block a heat bridge, the heat conductivity coefficient of the foamed polyurethane adhesive is less than 0.024 (W/m.K), the combustion performance is B1 grade, the tensile strength perpendicular to the plate surface is more than 0.10MPa, and the volume water absorption is less than 3%.
In the embodiment provided by the utility model, the silicon modified flame-retardant polyurethane adhesive arranged between the inorganic fiber reinforced cloth and the rock wool strips has the combustion performance of B1 grade, the oxygen index of more than 30 percent and the tensile bonding strength of more than 100 kPa.
In a second aspect, the utility model further provides an external thermal insulation system, which comprises the reinforced high-flatness rock wool thermal insulation board 3, a base wall 1 and a polymer bonding mortar layer 2, wherein the reinforced high-flatness rock wool thermal insulation board 3 is bonded with the base wall 1 through the polymer bonding mortar layer 2.
The external heat insulation system provided by the utility model has excellent fireproof performance and good heat insulation performance, the tensile strength in the direction perpendicular to the plate surface is high, a heat bridge of a gap between the rock wool strips is blocked, the heat insulation performance of the heat insulation plate is improved, and the bonding strength between the rock wool strip bare strip and the bonding mortar and the plastering mortar is increased.
Preferably, the external thermal insulation system further comprises an anchor bolt 4, wherein the reinforced high-flatness rock wool thermal insulation board 3, the polymer bonding mortar layer 2 and the base layer wall body 1 are connected through the anchor bolt 4.
Preferably, the external thermal insulation system further comprises: the reinforced high-flatness rock wool heat-insulation board 3, the first polymer plastering mortar layer 5, the alkali-resistant glass fiber net 6, the second polymer plastering mortar layer 7, the outer wall outer heat-insulation flexible waterproof putty layer 8 and the finishing layer 9 are sequentially connected.
The decorative layer 9 is made of light materials and does not adopt face bricks. Further preferably, the finishing layer 9 is paint or finishing mortar.
The performances of the rock wool strips, the anchor bolts, the polymer bonding mortar, the plastering mortar, the alkali-resistant glass fiber web and the like meet the index requirements of JG/T483-2015 'Material for rock wool thin-plastered external thermal insulation system', and the performance of the external thermal insulation flexible waterproof putty meets JG/T229-2007 'external thermal insulation flexible waterproof putty'.
The utility model has the beneficial effects that: the reinforced high-flatness rock wool insulation board and the external insulation system thereof provided by the utility model have excellent fireproof performance and good insulation performance, the tensile strength perpendicular to the board surface is high, a heat bridge between rock wool strips is blocked, the stimulation of the rock wool strip bare strip to the skin of constructors is improved, the bonding strength between the rock wool strip bare strip and bonding mortar and plastering mortar is increased, the wind load resistance of the rock wool strip external insulation system is improved, the safety of the external insulation system of the composite rock wool strip insulation board is enhanced, and the reinforced high-flatness rock wool insulation board and the external insulation system thereof can be widely applied to the external insulation system of the building external wall to meet the requirements of fireproof flame retardance and energy-saving insulation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic cross-sectional view of a reinforced high-flatness rock wool insulation board according to the present invention;
FIG. 2 is a schematic view of the external thermal insulation system of the reinforced high-flatness rock wool insulation board provided by the utility model;
wherein, 1-1, inorganic fiber reinforced cloth; 1-2, a first polyurethane adhesive layer; 1-3 rock wool strips; 1-4, a second polyurethane adhesive layer; 1. a base layer wall body; 2. a polymer-bonded mortar layer; 3. reinforcing the high-flatness rock wool heat insulation board; 4. an anchor bolt; 5. a first polymer render mortar layer; 6. alkali-resistant glass fiber web; 7. a second polymeric render mortar layer; 8. the outer wall is provided with a heat-insulating flexible waterproof putty layer; 9. and (6) a finishing layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
The examples do not show the specific techniques or conditions, according to the technical or conditions described in the literature in the field, or according to the product specifications. The reagents or instruments used are conventional products available from regular distributors, not indicated by the manufacturer.
In the utility model, the terms of the external thermal insulation system of the enhanced high-flatness rock wool thermal insulation board, the external thermal insulation system structure of the enhanced high-flatness rock wool thermal insulation board and the external thermal insulation system refer to the same structure.
According to the embodiment of the utility model, the properties of the rock wool strips, the anchor bolts, the polymer bonding mortar layer, the finishing mortar layer, the alkali-resistant glass fiber web and the like meet the index requirements of JG/T483-2015 'rock wool thin-plastered outer wall external thermal insulation system material', and the property of the outer wall external thermal insulation flexible waterproof putty layer meets JG/T229-2007 'outer wall external thermal insulation flexible waterproof putty'.
According to the embodiment of the utility model, the heat conductivity coefficient of the foaming polyurethane adhesive arranged in the gap between the rock wool strips 1-3 is less than 0.024 (W/m.K), the combustion performance is B1 grade, the tensile strength perpendicular to the plate surface is more than 0.10MPa, and the volume water absorption is less than 3%.
According to the embodiment of the utility model, the silicon modified flame-retardant polyurethane adhesive arranged between the inorganic fiber reinforced cloth and the rock wool strips has the combustion performance of B1 grade, the oxygen index of more than 30 percent and the tensile bonding strength of more than 100 kPa.
According to the embodiment of the utility model, the polymer cement waterproof mortar has 7-day seepage resistance pressure of more than 0.8MPa, 28-day seepage resistance pressure of more than 1.5MPa, flexibility of more than 2.0mm, water absorption of less than 4.0 percent and 28-day bonding strength of more than 1.2 MPa.
According to the embodiment of the utility model, ZrO in the glass component of the alkali-resistant glass fiber mesh cloth2The content is more than 16.0 percent, and the mass per unit area is more than or equal to 160g/m2The alkali-resistant tensile breaking strength (warp direction and weft direction) is more than or equal to 1000N/50mm, the alkali-resistant breaking strength retention rate (warp direction and weft direction) is more than or equal to 50%, and the breaking elongation rate (warp direction and weft direction) is less than or equal to 5.0%.
Example 1
Referring to fig. 1, the embodiment provides a reinforced high-flatness rock wool insulation board, which is provided with inorganic fiber reinforced cloth 1-1 with the thickness of 1.5mm and an insulation layer formed by splicing rock wool strips 1-3; the heat-insulating layer is arranged between the two layers of the inorganic fiber reinforced cloth 1-1, a first polyurethane bonding layer 1-2 is arranged between the inorganic fiber reinforced cloth 1-1 and the heat-insulating layer, a second polyurethane bonding layer 1-4 is arranged between the rock wool strips 1-3, and the first polyurethane bonding layer 1-2 and the second polyurethane bonding layer 1-4 are perpendicular to each other. The width of the rock wool strips 1-3 is 150-200 mm, the thickness is 50-300 mm, and the length is 600-1200 mm. The inorganic fiber reinforced cloth 1-1 is composed of an alkali-resistant glass fiber mesh cloth and a polymer cement waterproof mortar layer arranged on the outer layer of the alkali-resistant glass fiber mesh cloth. The first polyurethane adhesive layer 1-2 is a silicon modified flame-retardant polyurethane adhesive. The second polyurethane bonding layers 1-4 arranged in the gaps between the rock wool strips 1-3 are made of foamed polyurethane.
The reinforced high-flatness rock wool insulation board provided by the embodiment is prepared by coating 1-2 parts of flame-retardant polyurethane binder on inner-layer inorganic fiber reinforced cloth, adhering 1-3 parts of rock wool strips with the thickness of 100mm to the 1-2 parts of polyurethane binder, extruding 1-4 parts of foamed polyurethane between the 1-3 parts of rock wool strips, adhering 1-1 parts of outer-layer inorganic fiber reinforced cloth coated with 1-2 parts of polyurethane binder to the other surfaces of the 1-3 parts of rock wool strips, putting the rock wool insulation board on a press, applying the pressure of 60kPa, and standing for 4 hours.
The enhanced high-flatness rock wool insulation board provided by the embodiment has the heat conductivity coefficient of 0.044 (W/m.K), the tensile strength of 200kPa in the direction vertical to the board surface, and the water absorption capacity of 0.3kg/m in 24 hours2And class A combustion performance. While the heat conductivity coefficient of the common rock wool strip is 0.046 (W/m.K), the tensile strength perpendicular to the plate surface direction is 100kPa, and the water absorption capacity of 24 hours is 0.5kg/m2And class A combustion performance.
In the embodiment, the performance of the rock wool strip meets the requirements of rock wool products for external thermal insulation of building external walls GB/T25975-2018.
As shown in fig. 2, this embodiment still provides a high level and smooth rock wool heated board external thermal insulation system (structure) of reinforcing, the structure includes that basic unit's wall body 1, polymer bonding mortar layer 2, reinforcing high level and smooth rock wool heated board 3, crab-bolt 4, first polymer rendering coat mortar layer 5, alkali-resisting glass fiber net 6, second polymer rendering coat mortar layer 7, the flexible water-fast putty layer 8 of external thermal insulation of outer wall, finish coat 9 are constituteed.
Reinforcing height levels rock wool heated board 3 pastes on basic unit's wall body 1 through polymer bonding mortar 2, and it is fixed with crab-bolt 4 in the reinforcing height levels rock wool heated board outside, and the crab-bolt 4 outside is polymer plastering mortar 5, paves in the 5 outsides of polymer plastering mortar presses alkali-resistant glass fiber net 6, is polymer plastering mortar 7 in the 6 outsides of alkali-resistant glass fiber net, is outer flexible water-fast putty 8 of heat preservation outside the polymer plastering mortar 7 outsides, is finish coat 9 in the outer flexible water-fast putty 8 outsides of heat preservation outside the outer wall. Wherein, the finish coat is made of light materials such as paint, finish mortar and the like, and does not adopt face bricks.
The enhanced high-flatness rock wool insulation board external insulation system provided by the embodiment has the advantages that damage such as bubbling or peeling of the finish coat, hollowing or falling of the protective layer and the like does not occur, water seepage cracks are not generated, the tensile bonding strength of the finish coat and the insulation layer is 180kPa, and the water absorption capacity is 220g/m2(ii) a Freeze thawing resistance, no hollowing and dropping of the protective layer after 30 freeze thawing cycles, no water seepage cracks, and 180kPa of tensile bonding strength between the plastering layer and the heat insulation layer; the impact resistance is more than 10J. The common rock wool strip system has weather resistance, the tensile bonding strength of a finishing layer and a heat-insulating layer is 80kPa, and the water absorption capacity is 440g/m2(ii) a Freeze-thaw resistance, and the tensile bonding strength of the plastering layer and the insulating layer is 80 kPa; more than two layers of 3J and a first layer of 10J with impact resistance.
The rock wool is an inorganic heat-insulating material with excellent performance in the A-grade heat-insulating material, is non-combustible in fire, non-toxic and harmless, has good durability, and can have the same service life as a building; the two sides of the rock wool strips are compounded through the inorganic fiber reinforced cloth, so that the bonding performance and the environmental protection performance of the rock wool strips can be improved, a novel heat-insulating material integrating fire prevention, heat preservation and environmental protection and an outer heat-insulating structure thereof are formed, and a new idea is provided for the development of the outer-wall outer heat-insulating material.
Although the utility model has been described in detail hereinabove with respect to a general description and specific embodiments thereof, it will be apparent to those skilled in the art that modifications or improvements may be made thereto based on the utility model. Accordingly, such modifications and improvements are intended to be within the scope of the utility model as claimed.
Claims (10)
1. The utility model provides a rock wool heated board is leveled to reinforcing height which characterized in that includes:
inorganic fiber reinforced cloth;
and the heat-insulating layer is formed by splicing a plurality of rock wool strips;
the heat preservation is located two-layerly between the inorganic fiber reinforcing cloth, inorganic fiber reinforcing cloth with the heat preservation is connected through first polyurethane bonding layer, be equipped with the second polyurethane tie coat between the rock wool strip, first polyurethane bonding layer with second polyurethane tie coat mutually perpendicular adhesion, first polyurethane bonding layer with the second polyurethane tie coat and inorganic fiber reinforcing cloth forms an organic whole.
2. The reinforced high-flatness rock wool insulation board according to claim 1, wherein the thickness of the inorganic fiber reinforced cloth is 1.0-1.5 mm.
3. The reinforced high-flatness rock wool insulation board according to claim 2, wherein the width of the rock wool strips is 150-200 mm, the thickness of the rock wool strips is 50-300 mm, and the length of the rock wool strips is 600-1200 mm.
4. The reinforced high-flatness rock wool insulation board as claimed in any one of claims 1-3, wherein the inorganic fiber reinforced cloth is composed of an alkali-resistant glass fiber mesh cloth and a polymer cement waterproof mortar layer arranged on the outer layer of the alkali-resistant glass fiber mesh cloth.
5. The reinforced high-flatness rock wool insulation board according to any one of claims 1 to 3, wherein the first polyurethane adhesive layer is a silicon modified flame-retardant micro-foaming polyurethane adhesive, the combustion performance of the adhesive is B1 grade, and the foaming ratio is 50-100%.
6. The reinforced high-flatness rock wool insulation board according to any one of claims 1 to 3, wherein the second polyurethane bonding layer is micro-foamed polyurethane, the combustion performance of the polyurethane bonding layer is B1 level, and the foaming ratio is 100-200%.
7. An external thermal insulation system comprising the enhanced high-grade rock wool insulation panel of any one of claims 1 to 6, and a substrate wall and a polymer-bonded mortar layer, wherein the enhanced high-grade rock wool insulation panel is bonded to the substrate wall by the polymer-bonded mortar layer.
8. The external thermal insulation system of claim 7, further comprising anchor bolts, wherein the reinforced high-flatness rock wool thermal insulation board, the polymer bonding mortar layer and the base wall are connected through the anchor bolts.
9. The external thermal insulation system of claim 7, further comprising: the reinforced high-flatness rock wool heat-insulation board, the first polymer plastering mortar layer, the alkali-resistant glass fiber net, the second polymer plastering mortar layer, the outer wall external heat-insulation flexible waterproof putty layer and the finishing layer are sequentially connected.
10. The external thermal insulation system of claim 9, wherein the finish layer is paint or finish mortar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123146509.1U CN215802364U (en) | 2021-12-14 | 2021-12-14 | Enhanced high-flatness rock wool heat insulation board and external heat insulation system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123146509.1U CN215802364U (en) | 2021-12-14 | 2021-12-14 | Enhanced high-flatness rock wool heat insulation board and external heat insulation system thereof |
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| CN215802364U true CN215802364U (en) | 2022-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202123146509.1U Active CN215802364U (en) | 2021-12-14 | 2021-12-14 | Enhanced high-flatness rock wool heat insulation board and external heat insulation system thereof |
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- 2021-12-14 CN CN202123146509.1U patent/CN215802364U/en active Active
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