CN216948805U - Thermoplastic polyolefin pre-laid coiled material - Google Patents
Thermoplastic polyolefin pre-laid coiled material Download PDFInfo
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- CN216948805U CN216948805U CN202122833406.6U CN202122833406U CN216948805U CN 216948805 U CN216948805 U CN 216948805U CN 202122833406 U CN202122833406 U CN 202122833406U CN 216948805 U CN216948805 U CN 216948805U
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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Abstract
The utility model relates to a thermoplastic polyolefin pre-laid coiled material which comprises an isolation protective layer, a pressure-sensitive adhesive layer, a first thermoplastic polyolefin layer, an aluminum foil tire base layer, a second thermoplastic polyolefin layer, a reinforced gridding cloth layer, a third thermoplastic polyolefin layer and a strip-bonded non-woven cloth layer which are sequentially stacked. The thermoplastic polyolefin waterproof coiled material has high construction efficiency, small influence of temperature and excellent waterproof performance.
Description
Technical Field
The utility model relates to the technical field of waterproof coiled materials, in particular to a thermoplastic polyolefin pre-paved coiled material.
Background
At present, environmental protection is a primary concern in the industries such as buildings, and Thermoplastic Polyolefin (TPO) waterproof coiled materials play an increasingly important role as a recyclable product. The TPO waterproof coiled material is a new environment-friendly high-molecular waterproof material, which is not a pure blend, but a uniformly distributed copolymerization continuous phase and has a series of unique properties, such as higher elasticity, tensile strength, better thermal welding temperature range and the like. The TPO waterproof coiled material integrates the performance advantages of Ethylene Propylene Diene Monomer (EPDM) and polyvinyl chloride (PVC), and has the weather resistance, low-temperature flexibility and weldability of the EPDM and the PVC. The material is different from the traditional plastics, shows high elasticity of rubber at normal temperature, and can be molded like plastics at high temperature. Therefore, the material has good processing performance and mechanical property, and has high-strength welding performance.
The pre-paved waterproof roll adopts a brand new bonding technology: slurry in the concrete pouring process reacts and bonds with a special high-molecular self-adhesive film of the coiled material bonding layer, so that the coiled material and the concrete structure layer are permanently bonded into a whole, and the potential water channeling hazard does not exist in the middle; even if the local damage of the coiled material is encountered, the water outlet point is limited in a small range, and the maintenance reliability of the waterproof layer is improved. The waterproof coiled material and the base layer are laid in a vacant way and are not bonded, and the base layer is settled and deformed without influencing the waterproof performance of the waterproof coiled material. Strong chemical corrosion resistance, good resistance to alkaline water from concrete slurry, no damage by domestic garbage and organisms, mildew resistance and corrosion resistance. The construction process needs no leveling, has low requirement on the base course, is not influenced by weather and base course moisture, and has obvious advantages in construction in rainy season and construction period-clearing engineering. The construction is completely cold, heating is not needed, and the construction is safe and environment-friendly.
CN211764009U discloses a thermoplastic polyolefin waterproof roll for maintenance, which comprises a surface waterproof layer, a thermoplastic polyolefin layer, a tire base layer, an inner waterproof layer and a non-woven fabric layer from top to bottom; its disclosed thermoplasticity polyolefin waterproofing membrane includes top layer waterproof layer through setting up from top to bottom, thermoplasticity polyolefin layer, child basic unit, the composite construction waterproofing membrane of nexine waterproof layer and non-woven fabrics layer, when splicing, detain the structure of the scrap (bridge) structure and thermoplasticity adhesive tape on limit and second through first knot limit, make the joint effect of junction better, and the junction surfacing, be convenient for simultaneously repair, it is reliable to repair the position overlap joint, the closure is good, and surfacing, the outward appearance of repairing the department has been promoted.
But the tradition uses High Density Polyethylene (HDPE) as the subject matter, there are a lot of pain point problems that await the solution urgently in the same time, use HDPE as the subject matter, the material is harder young modulus than great, meet the foundation ditch in the construction, the difficult operation of the complicated detail node of structures such as root of a pipe, traditional HDPE pre-paved coiled material adopts bottom air laying, and when facing day and night great weather of difference in temperature, traditional coiled material can lead to the hollowing because of the dimensional change of subject matter, lead to not laminating with the bottom, during post-pouring concrete, the concrete leads to the coiled material to damage and easily produces at the hollowing position.
In conclusion, it is important to develop a thermoplastic polyolefin waterproof roll material which is environmentally friendly and has excellent waterproof performance.
SUMMERY OF THE UTILITY MODEL
In view of the defects of the prior art, the utility model aims to provide a thermoplastic polyolefin waterproof coiled material which has high construction efficiency, small temperature influence and excellent waterproof performance.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a thermoplastic polyolefin pre-laid coiled material which comprises an isolation protective layer, a pressure-sensitive adhesive layer, a first thermoplastic polyolefin layer, an aluminum foil tire base layer, a second thermoplastic polyolefin layer, a reinforced gridding cloth layer, a third thermoplastic polyolefin layer and a strip-bonded non-woven cloth layer which are sequentially stacked.
The reinforced gridding cloth layer is arranged to limit the deformation of the coiled material caused by the temperature change, so that the thermal dimension change rate of the coiled material is reduced, and hollowing is effectively prevented; the purpose of arranging the strip viscose non-woven fabric layer is as follows: during construction, the pre-paved coiled material and a base layer (such as a basement bottom plate cushion layer) in the prior art are paved in a vacant mode and are changed into a mode of being adhered to a base layer strip, the arrangement not only meets the requirement that the pre-paved coiled material is protected from being damaged when the base layer is settled, but also can avoid vacant bulging and deformation caused by temperature change; the purpose that sets up aluminium foil child basic unit is the puncture resistance ability that improves the coiled material of spreading in advance, punctures the coiled material when avoiding tying up the reinforcing bar in the upper strata in the work progress, causes the water leakage point to can guarantee to spread the coiled material construction back in advance and need not beat the protective layer, can directly tie up the reinforcing bar, effectively shorten construction cycle.
Preferably, the thermoplastic polyolefin pre-laid web has a thickness of 1 to 2mm, such as 1.2mm, 1.4 mm, 1.6mm, 1.8mm, and the like.
Preferably, the edges of the thermoplastic polyolefin pre-laid coil are provided with welded edges.
The weld edge is formed from a first thermoplastic polyolefin layer, a second thermoplastic polyolefin layer, and a third thermoplastic polyolefin layer.
The overlapping edge of the utility model takes the thermoplastic polyolefin layer as the welding edge, thereby avoiding the phenomenon of easy separation existing in the traditional overlapping of the pressure-sensitive adhesive for the pre-paved coiled material, and the formed pre-paved coiled material has better integrity.
Preferably, the width of the welding rim is 50-150mm, such as 60mm, 80mm, 100mm, 120mm, 140mm, etc.
Preferably, the reinforcing scrim layer is a polyester fiber layer or a glass fiber layer.
Preferably, the isolation and protection layer is an isolation and protection sand layer or an acrylic coating.
Preferably, the pressure sensitive adhesive layer is a thermoplastic elastomer pressure sensitive adhesive layer.
Preferably, the thickness of the pressure sensitive adhesive layer is 0.25-0.30mm, such as 0.26mm, 0.28mm, etc.
Preferably, the width of the strip of spunbonded nonwoven layer is 80 to 120mm, such as 90mm, 100mm, 110mm, etc.
Preferably, the strip bonded nonwoven layers are arranged in parallel along the width direction, and the distance between any two adjacent strip bonded nonwoven layers is 150-250mm, such as 160mm, 180mm, 200mm, 220mm, 240 mm and the like;
the mass per unit area of the sticky non-woven fabric layer is 70-80g/m2For example 72g/m2、74g/m2、 76g/m2、78g/m2And the like.
Compared with the prior art, the utility model has the following beneficial effects:
(1) the bottom layer of the pre-laid coiled material protects the pre-laid coiled material from being damaged when the base layer is settled, can avoid hollowing and deformation caused by temperature change, avoids the phenomenon of water channeling, and has excellent waterproof performance;
(2) the pre-laid coiled material has the advantages of high elongation, better thermoplasticity, detailed nodes, capability of arranging the pre-laid coiled material into a required shape at the internal and external corners, and easiness in processing.
Drawings
FIG. 1 is a schematic structural view of a thermoplastic polyolefin pre-laid web as described in example 1;
the composite material comprises, by weight, 1-a separation protective layer, 2-a pressure-sensitive adhesive layer, 3-a first thermoplastic polyolefin layer, 4-an aluminum foil tire base layer, 5-a second thermoplastic polyolefin layer, 6-a reinforced gridding cloth layer, 7-a third thermoplastic polyolefin layer, 8-a non-woven cloth layer and 9-a welding edge.
Detailed Description
For the purpose of facilitating an understanding of the present invention, the present invention will now be described by way of examples. It should be understood by those skilled in the art that the examples are only for the understanding of the present invention and should not be construed as the specific limitations of the present invention.
Example 1
The embodiment provides a thermoplastic polyolefin pre-paved coiled material, the structural schematic diagram of which is shown in fig. 1, and the thickness of which is 1.5mm, the thermoplastic polyolefin pre-paved coiled material comprises an isolation protective layer 1, a pressure-sensitive adhesive layer 2, a first thermoplastic polyolefin layer 3, an aluminum foil tire base layer 4, a second thermoplastic polyolefin layer 5, a reinforced grid cloth layer 6, a third thermoplastic polyolefin layer 7 and a strip non-woven fabric layer 8 which are sequentially stacked.
The edge of the thermoplastic polyolefin pre-laid coiled material is provided with a welding edge 9, and the width of the welding edge is 100 mm;
the weld edge is formed from a first thermoplastic polyolefin layer, a second thermoplastic polyolefin layer, and a third thermoplastic polyolefin layer.
The reinforced gridding cloth layer is a polyester fiber layer, and the warp direction weft thread thickness is 1000D.
The isolation protective layer is an isolation protective sand layer which is selected from calcium-based sintered sand, the particle size distribution is 30-50 meshes, and the particle size of more than 40 meshes accounts for more than 80%.
The pressure-sensitive adhesive layer is a thermoplastic elastomer pressure-sensitive adhesive layer, and the thickness of the pressure-sensitive adhesive layer is 0.30 mm.
The width of the strip bonded non-woven fabric layers is 100mm, the strip bonded non-woven fabric layers are arranged in parallel along the width direction, the distance between any two adjacent strip bonded non-woven fabric layers is 200mm, and the mass per unit area is 75g/m2。
The first thermoplastic polyolefin layer, the second thermoplastic polyolefin layer and the third thermoplastic polyolefin layer are all made of a uniformly distributed coexisting continuous-phase polymer material obtained by copolymerizing alpha olefins such as ethylene and propylene, and the thicknesses of the first thermoplastic polyolefin layer, the second thermoplastic polyolefin layer and the third thermoplastic polyolefin layer are respectively 0.4mm, 0.3mm and 0.3mm from top to bottom.
The thickness of the aluminum foil tire base layer is 0.3 mm.
Example 2
The embodiment provides a thermoplastic polyolefin spreads coiled material in advance, and thickness is 2mm, thermoplastic polyolefin spreads coiled material in advance including range upon range of isolation inoxidizing coating, pressure sensitive adhesive layer, first thermoplastic polyolefin layer, aluminium foil child basic unit, second thermoplastic polyolefin layer, reinforcing net cloth layer, third thermoplastic polyolefin layer and the strip that sets up in proper order and glues the non-woven fabrics layer.
The edge of the thermoplastic polyolefin pre-laid coiled material is provided with a welding edge, and the width of the welding edge is 50 mm;
the weld edge is formed from a first thermoplastic polyolefin layer, a second thermoplastic polyolefin layer, and a third thermoplastic polyolefin layer.
The reinforced gridding cloth layer is a polyester fiber layer, and the warp direction weft thread thickness is 1000D.
The isolation and protection layer is an acrylic coating with the coating weight of 80 g/square meter
The pressure-sensitive adhesive layer is a thermoplastic elastomer pressure-sensitive adhesive layer, and the thickness of the pressure-sensitive adhesive layer is 0.30 mm.
The width of the strip bonded non-woven fabric layer is 80mm, the strip bonded non-woven fabric layers are arranged in parallel along the width direction, the distance between every two adjacent strip bonded non-woven fabric layers is 150mm, and the mass per unit area is 70g/m2。
The first thermoplastic polyolefin layer, the second thermoplastic polyolefin layer and the third thermoplastic polyolefin layer are all made of a uniformly distributed coexisting continuous-phase polymer material obtained by copolymerizing alpha-olefins such as ethylene and propylene. The thickness is respectively 0.5mm, 0.4mm and 0.4mm from top to bottom.
The thickness of the aluminum foil tire base layer is 0.3 mm.
Example 3
This example differs from example 1 in that the thermoplastic polyolefin pre-laid web was not provided with a weld edge on the edge and the left and right edges of the pressure sensitive adhesive layer were each increased by 100mm as a lap edge for joining two pre-laid webs.
Comparative example 1
This comparative example is different from example 1 in that a strip-bonded nonwoven fabric layer is not provided, and the rest is the same as example 1.
Comparative example 2
This comparative example differs from example 1 in that the reinforcing scrim layer is not provided, and is otherwise the same as example 1.
Construction process
The thermoplastic polyolefin coils of examples 1-3 were constructed and laid as follows:
preparing cement paste from 42.5 common Portland cement, water and special glue powder for a wet paving method, then wet paving the cement paste on a basement bottom plate cushion layer, enabling an isolation protective layer in a pre-paved coiled material to face upwards, bonding a strip bonded non-woven fabric layer with the cement paste, overlapping the welding edge of the overlapping part of one pre-paved coiled material and the left side of the overlapping part of the other pre-paved coiled material, enabling the homogeneous welding edge to be arranged upwards, flatly paving other parts of the lower part of the pre-paved coiled material on the cement paste, expelling air between the coiled material and the cement paste, and welding the overlapping edge to finish construction.
After the constructed pre-laid coiled material is kept still for one day, a protective layer is not required to be punched, reinforcing steel bars are directly bound on the upper portion of the isolation protective layer, after the reinforcing steel bars are bound, post-cast concrete is poured, and after about 2 days, the post-cast concrete and the pressure-sensitive adhesive layer are completely bonded together, so that the occurrence of water channeling is avoided, and the pre-laid coiled material is subjected to high-low temperature alternative treatment for 1 week to simulate temperature change, so that hollowing and deformation do not occur on the pre-laid coiled material.
After the thermoplastic polyolefin coiled material in the embodiment 4 is laid according to the construction process, after concrete is poured, the joints of partial overlap edges are separated, the water channeling phenomenon is easy to occur, the waterproof performance of the pre-laid coiled material is affected, and the thermoplastic polyolefin layer is used for forming the welding edges as the overlap edges, so that the performance of the obtained pre-laid coiled material is better.
After the thermoplastic polyolefin coiled material in the comparative example 1 is laid according to the construction process, the pre-laid coiled material is subjected to high-low temperature alternative treatment for 1 week, temperature change is simulated, and severe hollowing and deformation occur in the pre-laid coiled material, so that the arrangement of the strip-bonded non-woven fabric layer is beneficial to improvement of the waterproof performance of the pre-laid coiled material.
After the thermoplastic polyolefin coiled material in the comparative example 2 is laid according to the construction process, water channeling occurs after concrete is poured later, the pre-laid coiled material is subjected to high-low temperature alternative treatment for 1 week, temperature change is simulated, and severe hollowing and deformation occur, so that the arrangement of the reinforcing grid cloth layer is proved to be beneficial to improving the waterproof performance of the pre-laid coiled material.
The applicant states that the present invention is illustrated by the above examples to show the detailed method of the present invention, but the present invention is not limited to the above detailed method, that is, it does not mean that the present invention must rely on the above detailed method to be carried out. It should be understood by those skilled in the art that any modification of the present invention, equivalent substitutions of the raw materials of the product of the present invention, addition of auxiliary components, selection of specific modes, etc., are within the scope and disclosure of the present invention.
Claims (10)
1. The thermoplastic polyolefin pre-laid coiled material is characterized by comprising an isolation protective layer, a pressure-sensitive adhesive layer, a first thermoplastic polyolefin layer, an aluminum foil tire base layer, a second thermoplastic polyolefin layer, a reinforced gridding cloth layer, a third thermoplastic polyolefin layer and a strip-bonded non-woven cloth layer which are sequentially stacked.
2. The thermoplastic polyolefin pre-laid web as recited in claim 1, wherein the thermoplastic polyolefin pre-laid web has a thickness of 1 to 2 mm.
3. The thermoplastic polyolefin pre-laid web as recited in claim 1, wherein the edges of the thermoplastic polyolefin pre-laid web are provided with a welded edge;
the weld edge is formed from a first thermoplastic polyolefin layer, a second thermoplastic polyolefin layer, and a third thermoplastic polyolefin layer.
4. A pre-laid web of thermoplastic polyolefin as claimed in claim 3, characterized in that the width of the welded edge is 50-150 mm.
5. The pre-laid roll of thermoplastic polyolefin as defined in claim 1, wherein the reinforcing scrim layer is a polyester fiber layer or a glass fiber layer.
6. The pre-laid thermoplastic polyolefin roll of claim 1, wherein the barrier layer is a barrier sand layer or an acrylic coating.
7. The thermoplastic polyolefin pre-laid web of claim 1, wherein the pressure sensitive adhesive layer is a thermoplastic elastomer pressure sensitive adhesive layer.
8. The thermoplastic polyolefin pre-laid web of claim 7, wherein the pressure sensitive adhesive layer has a thickness of 0.20 to 0.30 mm.
9. The thermoplastic polyolefin pre-laid web of claim 1, wherein the strip bonded nonwoven layer has a width of 80 to 120 mm.
10. The pre-laid thermoplastic polyolefin roll as recited in claim 9, wherein said strip-bonded nonwoven layers are arranged in parallel along the width direction, and the distance between any two adjacent strip-bonded nonwoven layers is 150-250 mm;
the mass per unit area of the sticky non-woven fabric layer is 70-80g/m2。
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122833406.6U CN216948805U (en) | 2021-11-18 | 2021-11-18 | Thermoplastic polyolefin pre-laid coiled material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122833406.6U CN216948805U (en) | 2021-11-18 | 2021-11-18 | Thermoplastic polyolefin pre-laid coiled material |
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| CN216948805U true CN216948805U (en) | 2022-07-12 |
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