CN113913124A - Flame-retardant polypropylene veneer and preparation method thereof - Google Patents
Flame-retardant polypropylene veneer and preparation method thereof Download PDFInfo
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- CN113913124A CN113913124A CN202111222642.2A CN202111222642A CN113913124A CN 113913124 A CN113913124 A CN 113913124A CN 202111222642 A CN202111222642 A CN 202111222642A CN 113913124 A CN113913124 A CN 113913124A
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- 239000004743 Polypropylene Substances 0.000 title claims abstract description 90
- -1 polypropylene Polymers 0.000 title claims abstract description 90
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 90
- 239000003063 flame retardant Substances 0.000 title claims abstract description 43
- 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 34
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000010410 layer Substances 0.000 claims abstract description 204
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 39
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 39
- 239000011888 foil Substances 0.000 claims abstract description 39
- 239000011241 protective layer Substances 0.000 claims abstract description 29
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims abstract description 4
- 239000002131 composite material Substances 0.000 claims description 46
- 239000002994 raw material Substances 0.000 claims description 45
- 239000011248 coating agent Substances 0.000 claims description 30
- 238000000576 coating method Methods 0.000 claims description 30
- 239000004744 fabric Substances 0.000 claims description 27
- 239000012790 adhesive layer Substances 0.000 claims description 23
- 238000010438 heat treatment Methods 0.000 claims description 20
- 239000005030 aluminium foil Substances 0.000 claims description 16
- 238000005520 cutting process Methods 0.000 claims description 15
- 238000007731 hot pressing Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 12
- 238000004026 adhesive bonding Methods 0.000 claims description 10
- 239000003292 glue Substances 0.000 claims description 6
- 238000004806 packaging method and process Methods 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 5
- 230000007480 spreading Effects 0.000 claims description 5
- 238000003892 spreading Methods 0.000 claims description 5
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 4
- 239000004677 Nylon Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 229920001903 high density polyethylene Polymers 0.000 claims description 4
- 239000004700 high-density polyethylene Substances 0.000 claims description 4
- 229920001684 low density polyethylene Polymers 0.000 claims description 4
- 239000004702 low-density polyethylene Substances 0.000 claims description 4
- 229920001778 nylon Polymers 0.000 claims description 4
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 4
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 8
- 238000005034 decoration Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 6
- 241000251468 Actinopterygii Species 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000000181 anti-adherent effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/29—Laminated material
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/50—Adhesives in the form of films or foils characterised by a primer layer between the carrier and the adhesive
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/346—Applications of adhesives in processes or use of adhesives in the form of films or foils for building applications e.g. wrap foil
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
- C09J2301/122—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present only on one side of the carrier, e.g. single-sided adhesive tape
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/16—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the structure of the carrier layer
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
- C09J2301/302—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier the adhesive being pressure-sensitive, i.e. tacky at temperatures inferior to 30°C
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2400/00—Presence of inorganic and organic materials
- C09J2400/10—Presence of inorganic materials
- C09J2400/16—Metal
- C09J2400/163—Metal in the substrate
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2400/00—Presence of inorganic and organic materials
- C09J2400/20—Presence of organic materials
- C09J2400/26—Presence of textile or fabric
- C09J2400/263—Presence of textile or fabric in the substrate
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2423/00—Presence of polyolefin
- C09J2423/10—Presence of homo or copolymers of propene
- C09J2423/106—Presence of homo or copolymers of propene in the substrate
Abstract
The invention provides a flame-retardant polypropylene veneer and a preparation method thereof, and relates to the technical field of veneer preparation. According to the invention, the protective layer and the reinforcing layer are respectively coated on the surfaces of the two sides of the aluminum foil, and the protective layer is positioned at the outer side of the aluminum foil, so that the aluminum foil is prevented from being scratched and damaged in the decoration and carrying processes of the whole veneer, and a better flame retardant effect is achieved.
Description
Technical Field
The invention relates to the technical field of veneering preparation, in particular to a flame-retardant polypropylene veneer and a preparation method thereof.
Background
In-process at construction, often can glue the wainscot of different grade type on the wall body to reach effects such as fire-retardant dampproofing, and current fire-retardant wainscot in the use, because the aluminium foil that is used for fire-retardant of fire-retardant wainscot can directly expose on the wainscot surface mostly, in fitment and the handling of wainscot, the aluminium foil of wainscot is scraped because of the friction easily and is directly drawn the breach, influence the flame retardant efficiency of wainscot, be difficult to reach better result of use.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a flame-retardant polypropylene veneer and a preparation method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a fire-retardant type polypropylene wainscot, fire-retardant type polypropylene wainscot is from last to being inoxidizing coating, aluminium foil layer, enhancement layer, screen cloth layer, polypropylene layer, gluing layer and antiseized ply down in proper order, and each layer thickness is in proper order: 0.26-0.38mm of protective layer, 0.2-0.3mm of aluminum foil layer, 0.34-0.44mm of reinforcing layer, 0.7-0.9mm of mesh layer, 0.32-0.46mm of polypropylene layer, 0.2-0.3mm of adhesive layer and 0.3-0.4mm of anti-sticking paper layer.
In order to prevent the aluminum foil layer from being easily scratched, the improvement of the invention is that the protective layer is made of one of HDPE, LDPE and PET.
In order to play a role in buffering, the invention improves that the reinforcing layer is one of TPE, silica gel and rubber.
In order to improve the overall strength, the invention has the improvement that the material of the mesh fabric layer is one of glass fiber fabric and nylon fabric.
In order to be capable of being pasted, the invention is improved in that the material of the adhesive layer is pressure-sensitive adhesive.
In order to achieve different effects, the invention has the improvement that the thicknesses of all layers are as follows in sequence: the protective layer is 0.36mm, the aluminum foil layer is 0.2mm, the reinforcing layer is 0.4mm, the mesh fabric layer is 0.9mm, the polypropylene layer is 0.46mm, the adhesive layer is 0.25mm, and the anti-sticking paper layer is 0.3 mm.
In order to achieve different effects, the invention has the improvement that the thicknesses of all layers are as follows in sequence: 0.32mm of protective layer, 0.24mm of aluminium foil layer, 0.42mm of enhancement layer, 0.8mm of mesh layer, 0.42mm of polypropylene layer, 0.25mm of gluing layer, antiseized ply of paper 0.4 mm.
In order to achieve different effects, the invention has the improvement that the thicknesses of all layers are as follows in sequence: 0.3mm of protective layer, 0.3mm of aluminium foil layer, 0.44mm of enhancement layer, 0.8mm of gauze layer, 0.4mm of polypropylene layer, 0.3mm of gluing layer, antiseized ply of paper 0.4 mm.
The preparation method of the flame-retardant polypropylene veneer comprises the following steps:
s1: selecting an aluminum foil with proper thickness and size, flatly spreading the aluminum foil, heating the raw material of the protective layer to 120-140 ℃, and after the raw material of the protective layer is completely melted, uniformly coating the melted raw material on the surface of the aluminum foil by using a coating machine so as to obtain an initial composite layer;
s2: turning over the initial composite layer obtained in the step S1, heating the raw material of the reinforcing layer to 160-170 ℃, and after the raw material of the reinforcing layer is completely melted, uniformly coating the melted raw material on the surface of the aluminum foil by using a coating machine so as to obtain a second composite layer;
s3: heating polypropylene to 120-130 ℃, pouring the polypropylene into an extruder after the polypropylene is completely melted, and extruding the polypropylene into a film layer with a proper thickness, thereby obtaining a polypropylene film layer for later use;
s4: placing the second composite layer obtained in the step S2 on a hot press, enabling the reinforcing layer to be located above the reinforcing layer, then placing a mesh fabric layer with a proper thickness on the surface of the second composite layer, placing the polypropylene film layer obtained in the step S3 above the mesh fabric layer, then starting the hot press, and carrying out hot pressing for 20-30 minutes at the hot pressing temperature of 115-125 ℃ to obtain a third composite layer;
s5: heating the raw material of the adhesive layer to 80-90 ℃, after the raw material of the adhesive layer is completely melted, uniformly coating the raw material on the surface of the polypropylene layer of the third composite layer by using a glue spreader, and then pressing release paper on the surface of the adhesive layer by using a roller press so as to form a fourth composite layer;
s6: cutting the fourth composite layer obtained in the step S5 by using a cutting machine, and cutting off all redundant leftover materials around the aluminum foil layer to obtain the finished flame-retardant polypropylene veneer;
s7: and (5) inspecting the finished flame-retardant polypropylene veneers obtained in the step S6, and packaging and warehousing after the finished flame-retardant polypropylene veneers are qualified.
Compared with the prior art, the invention has the advantages and positive effects that,
according to the invention, the protective layer and the reinforcing layer are respectively coated on the surfaces of the two sides of the aluminum foil, and the protective layer is positioned on the outer side of the aluminum foil, so that the aluminum foil is prevented from being scratched and damaged in the decoration and carrying processes of the whole veneer, and a better flame retardant effect is achieved.
Drawings
FIG. 1 is a flow chart of a flame-retardant polypropylene veneer and a preparation method thereof.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1, the present invention provides a flame retardant polypropylene overlay, which comprises a protective layer, an aluminum foil layer, a reinforcing layer, a mesh layer, a polypropylene layer, an adhesive layer, and an anti-adhesive paper layer from top to bottom, wherein the thicknesses of the layers are as follows: 0.26-0.38mm of protective layer, 0.2-0.3mm of aluminum foil layer, 0.34-0.44mm of reinforcing layer, 0.7-0.9mm of mesh fabric layer, 0.32-0.46mm of polypropylene layer, 0.2-0.3mm of adhesive layer and 0.3-0.4mm of anti-sticking paper layer, the polypropylene has good heat resistance, the product can be sterilized and disinfected at a temperature of more than 100 ℃, a certain flame retardant effect can be achieved on the whole veneer, the strength of the whole veneer can be improved, and the veneer can be prevented from being cut and broken.
The material of inoxidizing coating is the HDPE, one among LDPE and the PET, HDPE, LDPE and PET all have good wear resistance, can prevent that the aluminium foil from receiving the fish tail and damaging in fitment and the handling of whole wainscot, so as to reach better flame retardant efficiency, the enhancement layer is TPE, one among silica gel and the rubber, TPE, silica gel and rubber can play good cushioning effect, prevent that the wainscot from splitting when receiving the impact, and can play the guard action to the aluminium foil layer, prevent that the aluminium foil layer is impaired, the material on net cloth layer is one among the fine cloth of glass and the nylon cloth, the fine cloth of glass and nylon cloth have stronger pull resistance, can the intensity of the whole wainscot of effectual improvement, prevent that whole wainscot from being broken easily, or break because of the fish tail, the material on gluing layer is pressure sensitive adhesive.
Example one
The thickness of each layer is as follows: the protective layer is 0.36mm, the aluminum foil layer is 0.2mm, the reinforcing layer is 0.4mm, the mesh fabric layer is 0.9mm, the polypropylene layer is 0.46mm, the adhesive layer is 0.25mm, and the anti-sticking paper layer is 0.3 mm.
The preparation method of the flame-retardant polypropylene veneer comprises the following steps:
s1: selecting an aluminum foil with proper thickness and size, flatly spreading the aluminum foil, heating the raw material of the protective layer to 130 ℃, and uniformly coating the molten raw material on the surface of the aluminum foil by using a coating machine after the raw material of the protective layer is completely molten, thereby obtaining an initial composite layer;
s2: turning over the initial composite layer obtained in the step S1, heating the raw material of the reinforcing layer to 168 ℃, and after the raw material of the reinforcing layer is completely melted, uniformly coating the melted raw material on the surface of the aluminum foil by using a coating machine, thereby obtaining a second composite layer;
s3: heating polypropylene to 124 ℃, pouring the polypropylene into an extruder after the polypropylene is completely melted, and extruding the polypropylene into a film layer with a proper thickness, so as to obtain a polypropylene film layer for later use;
s4: placing the second composite layer obtained in the step S2 on a hot press, enabling the reinforcing layer to be located above the reinforcing layer, then placing a mesh fabric layer with a proper thickness on the surface of the second composite layer, placing the polypropylene film layer obtained in the step S3 above the mesh fabric layer, then starting the hot press, and carrying out hot pressing, wherein the hot pressing time is 28 minutes, and the hot pressing temperature is 124 ℃, so that a third composite layer is obtained;
s5: heating the raw material of the adhesive layer to 86 ℃, uniformly coating the raw material on the surface of the polypropylene layer of the third composite layer by using a glue spreader after the raw material of the adhesive layer is completely melted, and then pressing release paper on the surface of the adhesive layer by using a roller press so as to form a fourth composite layer;
s6: cutting the fourth composite layer obtained in the step S5 by using a cutting machine, and cutting off all redundant leftover materials around the aluminum foil layer to obtain the finished flame-retardant polypropylene veneer;
s7: and (5) inspecting the finished flame-retardant polypropylene veneers obtained in the step S6, and packaging and warehousing after the finished flame-retardant polypropylene veneers are qualified.
Example two
The thickness of each layer is as follows: 0.32mm of protective layer, 0.24mm of aluminium foil layer, 0.42mm of enhancement layer, 0.8mm of mesh layer, 0.42mm of polypropylene layer, 0.25mm of gluing layer, antiseized ply of paper 0.4 mm.
The preparation method of the flame-retardant polypropylene veneer comprises the following steps:
s1: selecting an aluminum foil with proper thickness and size, flatly spreading the aluminum foil, heating the raw material of the protective layer to 135 ℃, and uniformly coating the molten raw material on the surface of the aluminum foil by using a coating machine after the raw material of the protective layer is completely molten, thereby obtaining an initial composite layer;
s2: turning over the initial composite layer obtained in the step S1, heating the raw material of the reinforcing layer to 166 ℃, and after the raw material of the reinforcing layer is completely melted, uniformly coating the melted raw material on the surface of the aluminum foil by using a coating machine, thereby obtaining a second composite layer;
s3: heating polypropylene to 126 ℃, pouring the polypropylene into an extruder after the polypropylene is completely melted, and extruding the polypropylene into a film layer with a proper thickness, so as to obtain a polypropylene film layer for later use;
s4: placing the second composite layer obtained in the step S2 on a hot press, enabling the reinforcing layer to be located above the second composite layer, then placing a mesh fabric layer with a proper thickness on the surface of the second composite layer, placing the polypropylene film layer obtained in the step S3 above the mesh fabric layer, then starting the hot press, and carrying out hot pressing, wherein the hot pressing time is 28 minutes, and the hot pressing temperature is 120 ℃, so that a third composite layer is obtained;
s5: heating the raw material of the adhesive layer to 84 ℃, uniformly coating the raw material on the surface of the polypropylene layer of the third composite layer by using a glue spreader after the raw material of the adhesive layer is completely melted, and then pressing release paper on the surface of the adhesive layer by using a roller press so as to form a fourth composite layer;
s6: cutting the fourth composite layer obtained in the step S5 by using a cutting machine, and cutting off all redundant leftover materials around the aluminum foil layer to obtain the finished flame-retardant polypropylene veneer;
s7: and (5) inspecting the finished flame-retardant polypropylene veneers obtained in the step S6, and packaging and warehousing after the finished flame-retardant polypropylene veneers are qualified.
EXAMPLE III
The thickness of each layer is as follows: 0.3mm of protective layer, 0.3mm of aluminium foil layer, 0.44mm of enhancement layer, 0.8mm of gauze layer, 0.4mm of polypropylene layer, 0.3mm of gluing layer, antiseized ply of paper 0.4 mm.
The preparation method of the flame-retardant polypropylene veneer comprises the following steps:
s1: selecting an aluminum foil with proper thickness and size, flatly spreading the aluminum foil, heating the raw material of the protective layer to 138 ℃, and uniformly coating the molten raw material on the surface of the aluminum foil by using a coating machine after the raw material of the protective layer is completely molten, thereby obtaining an initial composite layer;
s2: turning over the initial composite layer obtained in the step S1, heating the raw material of the reinforcing layer to 162 ℃, and after the raw material of the reinforcing layer is completely melted, uniformly coating the melted raw material on the surface of the aluminum foil by using a coating machine, thereby obtaining a second composite layer;
s3: heating polypropylene to 128 ℃, pouring the polypropylene into an extruder after the polypropylene is completely melted, and extruding the polypropylene into a film layer with a proper thickness, so as to obtain a polypropylene film layer for later use;
s4: placing the second composite layer obtained in the step S2 on a hot press, enabling the reinforcing layer to be located above the reinforcing layer, then placing a mesh fabric layer with a proper thickness on the surface of the second composite layer, placing the polypropylene film layer obtained in the step S3 above the mesh fabric layer, then starting the hot press, and carrying out hot pressing, wherein the hot pressing time is 26 minutes, and the hot pressing temperature is 120 ℃, so that a third composite layer is obtained;
s5: heating the raw material of the adhesive layer to 82 ℃, uniformly coating the raw material on the surface of the polypropylene layer of the third composite layer by using a glue spreader after the raw material of the adhesive layer is completely melted, and then pressing release paper on the surface of the adhesive layer by using a roller press so as to form a fourth composite layer;
s6: cutting the fourth composite layer obtained in the step S5 by using a cutting machine, and cutting off all redundant leftover materials around the aluminum foil layer to obtain the finished flame-retardant polypropylene veneer;
s7: and (5) inspecting the finished flame-retardant polypropylene veneers obtained in the step S6, and packaging and warehousing after the finished flame-retardant polypropylene veneers are qualified.
The working principle is as follows: the surface through the both sides at the aluminium foil coats inoxidizing coating and enhancement layer respectively, and make the inoxidizing coating be in the outside of aluminium foil, prevent that the aluminium foil from receiving the fish tail and damaging in the fitment of whole wainscot and handling, so as to reach better flame retardant efficiency, and the mesh layer can improve the intensity of whole wainscot, prevent that the wainscot from being torn easily, or by pulling deformation, and the polypropylene layer can bond mutually with the mesh layer when having good fire-retardant temperature effect that separates, then improve the intensity of whole wainscot, prevent that the wainscot from damaging, can prevent simultaneously that the wainscot from splitting when receiving the cut wound, so as to reach better fire-retardant result of use, so that the user uses under construction.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes by using the technical contents disclosed in the above description to other fields, but any simple modification, equivalent change and change made to the above embodiments according to the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.
Claims (9)
1. The flame-retardant polypropylene veneer is characterized in that: fire-retardant type polypropylene wainscot is from last to being inoxidizing coating, aluminium foil layer, enhancement layer, screen cloth layer, polypropylene layer, gluing layer and antiseized ply down in proper order, and each layer thickness is in proper order: 0.26-0.38mm of protective layer, 0.2-0.3mm of aluminum foil layer, 0.34-0.44mm of reinforcing layer, 0.7-0.9mm of mesh layer, 0.32-0.46mm of polypropylene layer, 0.2-0.3mm of adhesive layer and 0.3-0.4mm of anti-sticking paper layer.
2. The flame retarded polypropylene facing according to claim 1 wherein: the protective layer is made of one of HDPE, LDPE and PET.
3. The flame retarded polypropylene facing according to claim 1 wherein: the reinforced layer is one of TPE, silica gel and rubber.
4. The flame retarded polypropylene facing according to claim 1 wherein: the material of the mesh fabric layer is one of glass fiber cloth and nylon cloth.
5. The flame retarded polypropylene facing according to claim 1 wherein: the material of gluing layer is pressure sensitive adhesive.
6. The flame retarded polypropylene facing according to claim 1 wherein: the thickness of each layer is as follows: the protective layer is 0.36mm, the aluminum foil layer is 0.2mm, the reinforcing layer is 0.4mm, the mesh fabric layer is 0.9mm, the polypropylene layer is 0.46mm, the adhesive layer is 0.25mm, and the anti-sticking paper layer is 0.3 mm.
7. The flame retarded polypropylene facing according to claim 1 wherein: the thickness of each layer is as follows: 0.32mm of protective layer, 0.24mm of aluminium foil layer, 0.42mm of enhancement layer, 0.8mm of mesh layer, 0.42mm of polypropylene layer, 0.25mm of gluing layer, antiseized ply of paper 0.4 mm.
8. The flame retarded polypropylene facing according to claim 1 wherein: the thickness of each layer is as follows: 0.3mm of protective layer, 0.3mm of aluminium foil layer, 0.44mm of enhancement layer, 0.8mm of gauze layer, 0.4mm of polypropylene layer, 0.3mm of gluing layer, antiseized ply of paper 0.4 mm.
9. The preparation method of the flame retardant polypropylene facing according to claim 1, characterized in that: the method comprises the following steps:
s1: selecting an aluminum foil with proper thickness and size, flatly spreading the aluminum foil, heating the raw material of the protective layer to 120-140 ℃, and after the raw material of the protective layer is completely melted, uniformly coating the melted raw material on the surface of the aluminum foil by using a coating machine so as to obtain an initial composite layer;
s2: turning over the initial composite layer obtained in the step S1, heating the raw material of the reinforcing layer to 160-170 ℃, and after the raw material of the reinforcing layer is completely melted, uniformly coating the melted raw material on the surface of the aluminum foil by using a coating machine so as to obtain a second composite layer;
s3: heating polypropylene to 120-130 ℃, pouring the polypropylene into an extruder after the polypropylene is completely melted, and extruding the polypropylene into a film layer with a proper thickness, thereby obtaining a polypropylene film layer for later use;
s4: placing the second composite layer obtained in the step S2 on a hot press, enabling the reinforcing layer to be located above the reinforcing layer, then placing a mesh fabric layer with a proper thickness on the surface of the second composite layer, placing the polypropylene film layer obtained in the step S3 above the mesh fabric layer, then starting the hot press, and carrying out hot pressing for 20-30 minutes at the hot pressing temperature of 115-125 ℃ to obtain a third composite layer;
s5: heating the raw material of the adhesive layer to 80-90 ℃, after the raw material of the adhesive layer is completely melted, uniformly coating the raw material on the surface of the polypropylene layer of the third composite layer by using a glue spreader, and then pressing release paper on the surface of the adhesive layer by using a roller press so as to form a fourth composite layer;
s6: cutting the fourth composite layer obtained in the step S5 by using a cutting machine, and cutting off all redundant leftover materials around the aluminum foil layer to obtain the finished flame-retardant polypropylene veneer;
s7: and (5) inspecting the finished flame-retardant polypropylene veneers obtained in the step S6, and packaging and warehousing after the finished flame-retardant polypropylene veneers are qualified.
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