CN210919074U - Flame-retardant concrete maintenance film for tunnel engineering - Google Patents
Flame-retardant concrete maintenance film for tunnel engineering Download PDFInfo
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- CN210919074U CN210919074U CN201921677054.6U CN201921677054U CN210919074U CN 210919074 U CN210919074 U CN 210919074U CN 201921677054 U CN201921677054 U CN 201921677054U CN 210919074 U CN210919074 U CN 210919074U
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- retardant
- adhesive
- film
- plastic film
- water
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- 239000003063 flame retardant Substances 0.000 title claims abstract description 50
- 238000012423 maintenance Methods 0.000 title claims abstract description 27
- 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 title claims abstract description 26
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000002985 plastic film Substances 0.000 claims abstract description 27
- 229920006255 plastic film Polymers 0.000 claims abstract description 27
- 239000012528 membrane Substances 0.000 claims abstract description 17
- 239000000853 adhesive Substances 0.000 claims abstract description 13
- 230000001070 adhesive effect Effects 0.000 claims abstract description 13
- 239000011162 core material Substances 0.000 claims abstract description 11
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims abstract description 10
- 239000004831 Hot glue Substances 0.000 claims abstract description 8
- 238000002156 mixing Methods 0.000 claims abstract description 5
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- -1 polyethylene Polymers 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 3
- 238000013329 compounding Methods 0.000 claims description 3
- 238000013461 design Methods 0.000 claims description 3
- 239000012939 laminating adhesive Substances 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 3
- 238000004321 preservation Methods 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract description 9
- 238000013508 migration Methods 0.000 abstract description 9
- 230000005012 migration Effects 0.000 abstract description 9
- 230000003020 moisturizing effect Effects 0.000 abstract description 8
- 238000003860 storage Methods 0.000 abstract description 7
- 238000009826 distribution Methods 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 14
- 239000003292 glue Substances 0.000 description 8
- 238000004026 adhesive bonding Methods 0.000 description 4
- 239000012790 adhesive layer Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000001404 mediated effect Effects 0.000 description 1
- 238000009828 non-uniform distribution Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 description 1
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Abstract
The utility model discloses a tunnel engineering is with fire-retardant type concrete maintenance membrane is formed by plastic film, core material and non-woven fabrics complex in proper order. Water-based adhesive and hot melt adhesive are uniformly coated between the plastic film and the non-woven fabric, and pressure-sensitive adhesive with the function of bonding the wet concrete base surface is coated on the bottom surface of the non-woven fabric layer. The core material is prepared by blending a high-molecular water storage and release material and a novel flame retardant. The utility model discloses an aim at has just solved the problem of the inhomogeneous and fire retardant migration of fire retardant distribution in the above-mentioned heat preservation maintenance membrane of moisturizing for the fire retardant distributes evenly and is difficult for the migration in the heat preservation maintenance membrane of moisturizing, and fire-retardant efficiency is higher.
Description
Technical Field
The utility model relates to a combined material technical field, in particular to tunnel engineering is with fire-retardant type concrete maintenance membrane.
Background
Concrete is the most important type of construction material, and plays an irreplaceable role in railway construction. The railway industry has very strict requirements on the quality control of concrete. Because the curing directly affects the plastic shrinkage, drying shrinkage, temperature cracks and the like of the concrete, strict regulations are made on the curing of the concrete in relevant railway construction standards. The concrete curing film provides a novel concrete curing mode, has the functions of moisture preservation and heat preservation, and can effectively inhibit early-stage micro cracks of concrete.
The existing maintenance film can have better heat preservation and moisture preservation performances on concrete, but the existing maintenance film is made of high polymer materials, is easy to burn when meeting fire, needs to be subjected to flame retardant treatment in the engineering application process, particularly in tunnel engineering, and improves the construction safety. In the traditional method of adding flame retardant into the curing film, the flame retardant can be lost when meeting water in the application process, so that the flame retardant efficiency is reduced, and the environment is polluted. Therefore, the problem of low flame retardant efficiency caused by nonuniform distribution and migration of flame retardant in the heat-preservation and moisture-retention curing film is urgently needed to be solved.
SUMMERY OF THE UTILITY MODEL
The utility model provides a tunnel engineering is with fire-retardant type concrete maintenance membrane has solved the problem of the inhomogeneous and fire retardant migration of fire retardant distribution in the above-mentioned heat preservation maintenance membrane of moisturizing, through the fire retardant of synthetic novel structure for the fire retardant distributes evenly and is difficult for the migration in the heat preservation maintenance membrane of moisturizing, and fire-retardant efficiency is higher.
The utility model discloses a following technical scheme realizes above-mentioned purpose, a tunnel engineering is with fire-retardant type concrete maintenance membrane, is formed by plastic film, core material and non-woven fabrics complex in proper order, evenly cover waterborne glue, hot melt adhesive between plastic film, the non-woven fabrics layer bottom coating has the pressure-sensitive adhesive of damp concrete base face bonding function, the core material is mediated by polymer storage water release material and novel fire retardant and is formed.
Preferably, the proportion of the novel flame retardant in the curing film is as follows: 5 to 30 percent.
Preferably, the novel flame retardant has a molecular structure of
Preferably, the high-molecular water storage and release material is 60-150-mesh super absorbent resin particles, and the dosage of the high-molecular water storage and release material per square meter is 1-5 g.
Preferably, the plastic film is prepared from one or more of high-density polyethylene, low-density polyethylene, ultrahigh molecular weight polyethylene, polyvinyl chloride and polypropylene, the areal density of the film is 10-100 g, and the tensile strength is more than or equal to 15 MPa.
Preferably, the water-based adhesive on the plastic film and the non-woven fabric is coated in a full range, and the hot melt adhesive is coated at intervals; the water-based adhesive is prepared by blending an environment-friendly water-based laminating adhesive and an ultra-concentrated polyvinyl alcohol transparent concentrated adhesive.
Preferably, the coating position of the pressure-sensitive adhesive on the bottom layer of the non-woven fabric can be adjusted according to design requirements, and the using amount of the coating area is 0.2-10 g/cm 2.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the novel maintenance film is added with the flame retardant with a novel structure, so that the mechanical property and the moisture retention property of the maintenance film are not reduced, the flame retardant efficiency is improved, the water migration performance of the maintenance film is reduced, and the dispersion effect of the maintenance film in a matrix is improved;
2. neotype through earlier respectively at the aqueous glue of coating between non-woven fabrics, plastic film, the core material that adds in the middle of can effectual fixed maintenance membrane guarantees the fire retardant evenly distributed in the maintenance membrane of moisturizing, improves the fire-retardant efficiency of maintenance membrane.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic structural diagram of the plastic film and the non-woven fabric of the present invention.
FIG. 3 is a production flow chart of the present invention,
In the figure: 1. the plastic film comprises a plastic film 11, a plastic film water-based adhesive layer 2, a core material layer 3, a non-woven fabric 31, a non-woven fabric water-based adhesive layer 32 and a non-woven fabric pressure-sensitive adhesive layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model discloses an aim at just in order to solve the problem of fire retardant inhomogeneous distribution and fire retardant migration in traditional heat preservation maintenance membrane of moisturizing, through the fire retardant of synthetic novel structure for the fire retardant distributes evenly and is difficult for the migration in the maintenance membrane of moisturizing that keeps warm, and fire-retardant efficiency is higher.
Example 1
Referring to fig. 1-3, the flame retardant concrete curing film for tunnel engineering of the present embodiment is formed by sequentially compounding a plastic film 1, a core material 2 and a non-woven fabric 3, wherein a water-based adhesive and a hot melt adhesive are uniformly coated between the plastic film 1 and the non-woven fabric 3, and the bottom surface 3 of the non-woven fabric layer is coated with a pressure-sensitive adhesive 32 with a wet concrete base surface bonding function.
The plastic film 1 is a polyethylene film, in particular a polyethylene blow molding covering film;
the non-woven fabric 3 is a non-woven fabric with the specification of 16g per square meter;
the core material 2 is prepared by blending a high-molecular water storage and release material and a novel flame retardant, wherein the high-molecular water storage and release material is 60-150 meshes of super absorbent resin particles, and the dosage of the high-molecular water storage and release material per square meter is 1-5 g;
the novel flame retardant accounts for the following proportion in the maintenance film: 5% -30%;
the novel flame retardant has a molecular structure as follows:
the water-based adhesive on the plastic film 1 and the non-woven fabric 3 is coated in a full range to form a plastic film water-based adhesive layer 11 and a non-woven fabric water-based adhesive layer 31, and the design can ensure that the core material 2 forms a uniform and stable material layer on the non-woven fabric 3 and is not easy to move; the hot melt adhesive is coated at intervals, and ensures that the plastic film 1 and the non-woven fabric 3 can form a maintenance film product with higher quality after passing through a drying furnace;
the water-based adhesive is prepared by blending an environment-friendly water-based laminating adhesive and an ultra-concentrated polyvinyl alcohol transparent concentrated adhesive.
A preparation process of a flame-retardant concrete curing film for tunnel engineering comprises the following steps:
s1, after the plastic film 1 reel is uncoiled by the uncoiling device, tensioned and leveled by the tensioning device, and then the plastic film 1 passes through the gluing equipment, and the lower layer of the plastic film 1 is coated with the water-based glue to form the water-based glue layer 11 of the plastic film;
s2, after the non-woven fabric 3 is uncoiled by the uncoiling device, the non-woven fabric 3 is tensioned and leveled by the tensioning device, the first gluing device is used for coating the upper layer of the non-woven fabric 3 with water-based glue to form a non-woven fabric water-based glue layer 31, then the non-woven fabric water-based glue layer is sieved by the vibrating screen, the core material 2 is uniformly sprinkled on the non-woven fabric water-based glue layer 31, and after the non-woven fabric 3 is tensioned and leveled by the tensioning device, the second gluing device is used for coating the upper layer of;
s3, compounding the plastic film 1 passing through S1 and the non-woven fabric 3 passing through S2 together, forming the plastic film and the non-woven fabric by an extrusion forming device, and then passing through a baking box to enable the hot melt adhesive to fully play a role and shape the finished flame-retardant concrete curing film;
and S4, coating the pressure-sensitive adhesive with the wet concrete base surface bonding function on the bottom layer of the curing film after the finished product of the flame-retardant concrete curing film subjected to S3 passes through the gluing device again, tensioning and leveling the pressure-sensitive adhesive by the tensioning device, and rolling the pressure-sensitive adhesive into a cylinder by the rolling device.
Comparative example 1
Curing films with conventional flame retardants added are commercially available from a company.
And (3) performance detection:
the curing films produced by the methods of the example 1 and the comparative example 1 are taken, the flame retardant property test is carried out on the curing films added with the curing films of the example 1 and the comparative example 1 for seven days according to the same flame retardant ratio gradient, and the test results are shown in the following table 1:
table 1: results of flame retardancy test
Can know through the data among the analysis table 1, owing to added novel fire retardant in the maintenance membrane, and adopted new production technology, the improvement of limit oxygen index is more obvious, and limit oxygen index contrast after soaking seven days adds conventional maintenance membrane and also has obvious promotion, can see out the utility model discloses when mechanical properties and the moisturizing performance that do not reduce the maintenance membrane, can obviously improve flame retardant efficiency, reduce its performance of meeting water migration, improve its dispersion effect in the base member.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (4)
1. The utility model provides a tunnel engineering is with fire-retardant type concrete maintenance membrane which characterized in that: the wet concrete base surface adhesive is formed by sequentially compounding a plastic film (1), a core material (2) and non-woven fabrics (3), water-based adhesive and hot melt adhesive are uniformly coated between the plastic film (1) and the non-woven fabrics (3), and pressure-sensitive adhesive with a wet concrete base surface bonding function is coated on the bottom surface of the non-woven fabric layer.
2. The flame-retardant concrete curing film for tunnel engineering according to claim 1, wherein: the plastic film (1) is a polyethylene film, the surface density of the film is 10-100 g, and the tensile strength is more than or equal to 15 MPa.
3. The flame-retardant concrete curing film for tunnel engineering according to claim 1, wherein: the water-based adhesive on the plastic film (1) and the non-woven fabric (3) is coated in the whole range, and the hot melt adhesive is coated at intervals; the water-based adhesive is prepared by blending an environment-friendly water-based laminating adhesive and an ultra-concentrated polyvinyl alcohol transparent concentrated adhesive.
4. The flame-retardant concrete curing film for tunnel engineering according to claim 1, wherein: the pressure-sensitive adhesive coating position of non-woven fabrics (3) bottom can be adjusted according to the design demand, and the regional quantity of coating is 0.2 ~ 10g/cm 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921677054.6U CN210919074U (en) | 2019-10-09 | 2019-10-09 | Flame-retardant concrete maintenance film for tunnel engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921677054.6U CN210919074U (en) | 2019-10-09 | 2019-10-09 | Flame-retardant concrete maintenance film for tunnel engineering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210919074U true CN210919074U (en) | 2020-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921677054.6U Active CN210919074U (en) | 2019-10-09 | 2019-10-09 | Flame-retardant concrete maintenance film for tunnel engineering |
Country Status (1)
| Country | Link |
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| CN (1) | CN210919074U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114230837A (en) * | 2021-12-28 | 2022-03-25 | 贵州国塑科技管业有限责任公司 | Preparation method of FRPE buried sewage pipe |
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2019
- 2019-10-09 CN CN201921677054.6U patent/CN210919074U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114230837A (en) * | 2021-12-28 | 2022-03-25 | 贵州国塑科技管业有限责任公司 | Preparation method of FRPE buried sewage pipe |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 436000, No. 16 Qinggong Road, Wuchu Avenue, Echeng District, Ezhou City, Hubei Province Patentee after: Hubei Muzhijun Technology Co.,Ltd. Address before: 436000 Wuhan Port Industrial Park, Ezhou Economic Development Zone, Ezhou City, Hubei Province Patentee before: HUBEI MUZHI JUN ENGINEERING MATERIALS CO.,LTD. |
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| CP03 | Change of name, title or address |