CN110815879A - Preparation method and application of ultra-high molecular weight polyethylene composite membrane - Google Patents
Preparation method and application of ultra-high molecular weight polyethylene composite membrane Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D7/00—Producing flat articles, e.g. films or sheets
- B29D7/01—Films or sheets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0011—Combinations of extrusion moulding with other shaping operations combined with compression moulding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0021—Combinations of extrusion moulding with other shaping operations combined with joining, lining or laminating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/625—Screws characterised by the ratio of the threaded length of the screw to its outside diameter [L/D ratio]
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92514—Pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/06—PE, i.e. polyethylene
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- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
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- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
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Abstract
The invention discloses a preparation method and application of an ultrahigh molecular weight polyethylene composite membrane, wherein the preparation method comprises the following steps: (1) modifying the ultrahigh molecular weight polyethylene, namely blending the ultrahigh molecular weight polyethylene and a modifier, and melting to prepare granular modified ultrahigh molecular weight polyethylene; (2) the modified ultra-high molecular weight polyethylene and the thermoplastic elastomer material and/or the transition layer material are co-extruded to form a film. According to the size information of the high-altitude wind power blade, the composite film is attached to the wind power blade by a manual or mechanical method, and the seam is subjected to hot-press welding after the film attachment is completed. The composite film disclosed by the invention can realize full-coating protection on the wind power blade, protect the wind power blade from being damaged by dirt and rain erosion during service, and simultaneously has good weather resistance.
Description
Technical Field
The invention relates to a preparation method of a wind power blade protective film, in particular to a preparation method and application of an ultrahigh molecular weight polyethylene composite film for protecting a wind power blade.
Background
The wind power blade is one of core components of the wind driven generator, and the good design, reliable quality and excellent performance of the wind power blade are determining factors for ensuring the normal and stable operation of the wind turbine generator. The linear speed of the tip of the wind power blade can reach 80m/s in operation. At such high speeds, the wind turbine blade, and particularly the leading edge portion of the blade, is subject to erosion from wind sand, salt spray, rain drops in the air, degrading the aerodynamic performance of the blade, thereby affecting the efficiency of power generation.
At present, the most widely applied protection aspect of wind power blades is coating protection. According to the performance indexes of the coating: strong adhesive force, certain flexibility, strong wear resistance, impact resistance, weather resistance, surface smoothness and the like. The currently more ideal coatings are polyurethane type coatings, acrylic coatings, silicone resin coatings and fluorocarbon polymer coatings. However, to date, no coating has been provided that fully satisfies the full performance of blade protection.
Although the coating protection can protect the wind power blade to a certain extent, solvent micromolecules are bound to escape after the coating is cured due to the special solvent property of the coating, so that micropores are formed on the surface of a coating protection layer, and the micropores are the starting points of the protection layer damage. Therefore, the paint protection method requires multiple times of maintenance during the whole service period of the wind power blade, and the maintenance work of the wind power blade is very difficult due to the special working environment of the wind power blade.
Currently, polyurethane film is a feasible film material, but is limited by the polar nature of the material itself, is easily hydrolyzed during service, and has poor anti-fouling and anti-icing capabilities. Therefore, the polyurethane film has short service life and is difficult to match the service life of the wind power blade.
Germany kraibog rubber gmbh provides a composite membrane for wind turbine blade protection in patent CN 102458839A. However, the lamination process of the composite film adopts a vacuum hot-pressing mode to coat the composite film on the front edge of the blade in the manufacturing process of the blade, the process is complex, the existing blade cannot be used, and the application range of the composite film is greatly reduced.
The ultra-high molecular weight polyethylene (UHMWPE) film has excellent wear resistance and impact resistance, and the impact resistance in a low-temperature state is also excellent; the friction coefficient is small, the polarity is absent, the surface energy is low, the dirt resistance and the anti-icing performance are good; and the excellent chemical stability makes it quite widely used in various fields. At present, no report that the protective agent is well applied to the protection of wind power blades is found.
Disclosure of Invention
In order to solve the technical problems, the invention provides a preparation method and application of an ultrahigh molecular weight polyethylene composite film, so as to achieve the purposes of realizing full-coating protection of a wind power blade, protecting the wind power blade from being damaged by dirt and rain erosion during service and having good weather resistance.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a preparation method of an ultrahigh molecular weight polyethylene composite membrane comprises the following steps:
(1) modifying the ultrahigh molecular weight polyethylene, namely blending the ultrahigh molecular weight polyethylene and a modifier, and melting to prepare granular modified ultrahigh molecular weight polyethylene;
(2) the modified ultrahigh molecular weight polyethylene and the thermoplastic elastomer material and/or the transition layer material are co-extruded to form a film, and when the modified ultrahigh molecular weight polyethylene, the thermoplastic elastomer material and the transition layer material are co-extruded to form the film, the thermoplastic elastomer material is positioned between the modified ultrahigh molecular weight polyethylene and the transition layer material.
In the scheme, the modifiers are a de-winding agent graphene and a dispersant polyethylene wax, and the dosage of the modifiers is 2-10%.
In the scheme, the thermoplastic elastomer material is one of ethylene propylene rubber, modified polyacrylate rubber, fluorinated rubber, acrylonitrile-butadiene-rubber or polyurethane.
In the above scheme, the transition layer material is one of ethylene acrylic acid copolymer, ethylene propylene diene monomer, and ethylene-vinyl acetate copolymer.
In the scheme, the viscosity-average molecular weight of the ultrahigh molecular weight polyethylene in the step (1) is more than 150 ten thousand, and the melt mass flow rate of the modified ultrahigh molecular weight polyethylene is 0.2-2.0 g/10 min.
In the above scheme, in the step (2), when the modified ultrahigh molecular weight polyethylene and the thermoplastic elastomer material are co-extruded to form the film, the thickness of the modified ultrahigh molecular weight polyethylene layer is less than or equal to that of the thermoplastic elastomer material layer, and the surface of the thermoplastic elastomer material layer has mechanical latticed patterns.
In the above scheme, in the step (2), when the modified ultrahigh molecular weight polyethylene and the transition layer material are co-extruded to form the film, the thickness of the transition layer is smaller than that of the modified ultrahigh molecular weight polyethylene layer, and the composite film is a composite film with smooth two sides.
In the scheme, after the modified ultrahigh molecular weight polyethylene and the transition layer material are co-extruded to form a film, or after the modified ultrahigh molecular weight polyethylene, the thermoplastic elastomer material and the transition layer material are co-extruded to form a film, the film is subjected to gum application by a gum application roller and cooled and enters a winding machine for winding, and a gum composite film product is obtained.
In a further technical scheme, the type of the adhesive used by the back adhesive is solvent-based adhesive or solvent-free thermoplastic pressure-sensitive adhesive, and the thickness of the back adhesive layer is 50-500 μm.
According to the composite film prepared by the preparation method, the composite film is attached to the wind power blade by a manual or mechanical method according to the size information of the high-altitude wind power blade, and the seam is subjected to hot-press welding after the film attachment is completed.
According to the technical scheme, the preparation method of the ultra-high molecular weight polyethylene composite film provided by the invention has the advantages that the modifier is added to enable the ultra-high molecular weight polyethylene to meet the requirement of melt extrusion, so that the ultra-high molecular weight polyethylene film can be produced in a melt extrusion mode, the defects of discontinuity and uneven thickness caused by the traditional turning process are overcome, and favorable conditions are provided for continuous and diversified production of the ultra-high molecular weight polyethylene film.
In addition, the ultra-high molecular weight polyethylene and various thermoplastic elastomers can be closely compounded through a melt co-extrusion technology, so that an elastic layer is formed between the ultra-high molecular weight polyethylene and a matrix, the surface of the thermoplastic elastomer material layer in the prepared composite film is provided with mechanical latticed patterns, epoxy resin is added on the surfaces of the composite film and the wind power blade, and the composite film can be firmly fixed on the surface of the wind power blade matrix through a mechanical interlocking principle.
The transition layer in the composite film enables the ultra-high molecular weight polyethylene to generate structural strength binding force with most of polymer substrates, the defect of poor bonding performance between the ultra-high molecular weight polyethylene and the wind power blade substrate can be overcome, and the composite film can be well standing-on the wind power blade substrate by utilizing acrylic double-component glue, epoxy resin double-component glue or polyurethane adhesive. When the composite film with the back adhesive is used for film pasting, the operation is convenient.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
FIG. 1 is a schematic view of a composite film product a (b) according to an embodiment of the present invention;
FIG. 2 is a schematic surface view of a thermoplastic elastomer material layer in a composite film product a according to an embodiment of the present disclosure;
FIG. 3 is a schematic view of a composite film product c according to an embodiment of the present invention;
FIG. 4 is a schematic view of a back-adhesive composite film product b according to an embodiment of the present disclosure;
FIG. 5 is a schematic view of a composite film product c with a back adhesive according to an embodiment of the present disclosure;
FIG. 6 is a flow chart of a process for producing a composite film product a;
FIG. 7 is a flow chart of a production process of a composite film product b and a gum composite film product b;
FIG. 8 is a flow chart of a process for producing a composite film product c and a gum composite film product c;
in the figure, 1, modified ultra-high molecular weight polyethylene; 2. a thermoplastic elastomer material; 3. a transition layer material; 4. and (7) carrying out gum application.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
The invention provides a preparation method and application of an ultrahigh molecular weight polyethylene composite membrane, and the specific embodiment is as follows:
referring to fig. 1, 6 and 7, a device for producing an ultra-high molecular weight polyethylene double-layer composite film includes a first extruder, a second extruder, a co-extrusion die, a three-roll calender and a winding machine. According to the sequence of the production process flow chart, the first extruder, the second extruder, the co-extrusion die, the three-roller calender and the winding machine are sequentially arranged. The extruder is a single-screw or double-screw extruder, the base and the temperature are set to be 100-270 ℃, the film forming die is heated by adopting a direct electric heating mode, and the extrusion pressure is 10-50 Mpa.
With reference to fig. 3 and 8, a device for producing an ultra-high molecular weight polyethylene three-layer composite film comprises a first extruder, a second extruder, a third extruder, a co-extrusion die, a three-roll calender and a winding machine. According to the sequence of the production process flow chart, the first extruder, the second extruder, the third extruder, the co-extrusion die, the three-roller calender and the winding machine are sequentially arranged. The extruder is a single-screw or double-screw extruder, the base and the temperature are set to be 100-270 ℃, the film forming die is heated by adopting a direct electric heating mode, and the extrusion pressure is 10-50 Mpa.
With reference to fig. 4, 6 and 7, a device for producing an ultra-high molecular weight polyethylene double-layer composite back adhesive film includes a first extruder, a second extruder, a co-extrusion mold, a three-roller calender, a back adhesive roller and a winding machine. According to the sequence of the production process flow chart, the first extruder, the second extruder, the co-extrusion die, the three-roller calender, the back rubber roller and the winding machine are sequentially arranged. The extruder is a single-screw or double-screw extruder, the base and the temperature are set to be 100-270 ℃, the film forming die is heated by adopting a direct electric heating mode, and the extrusion pressure is 10-50 Mpa.
With reference to fig. 5 and 8, a device for producing an ultra-high molecular weight polyethylene three-layer composite back adhesive film comprises a first extruder, a second extruder, a third extruder, a co-extrusion die, a three-roller calender, a back adhesive roller and a winding machine. According to the sequence of the production process flow chart, the first extruder, the second extruder, the third extruder, the co-extrusion die, the three-roller calender, the back rubber roll and the winding machine are sequentially arranged. The extruder is a single-screw or double-screw extruder, the base and the temperature are set to be 100-270 ℃, the film forming die is heated by adopting a direct electric heating mode, and the extrusion pressure is 10-50 Mpa.
Modification of ultra-high molecular weight polyethylene:
the modified ultrahigh molecular weight polyethylene is prepared by blending ultrahigh molecular weight polyethylene with viscosity average molecular weight of 300 ten thousand and a modifier, and melting the mixture to prepare granular modified ultrahigh molecular weight polyethylene. The modifier is de-entanglement agent graphene and dispersant polyethylene wax, the dosage of the de-entanglement agent graphene is 3%, the dosage of the dispersant polyethylene wax is 7%, and the dosage of the ultra-high molecular weight polyethylene is 90%, in percentage by mass. The MFR (melt flow rate) of the obtained modified ultrahigh molecular weight polyethylene particles was 1g/10 min.
The first embodiment is as follows:
the production process shown in the upper half of fig. 7 is adopted, the modified ultra-high molecular weight polyethylene (UPE) raw material and the ethylene-vinyl acetate copolymer (EVA) raw material are extruded by a single screw extruder to form a melt, and the melt is extruded by a co-extrusion die to form the co-extrusion composite film. The length-diameter ratio of the screw of the ultra-high molecular weight polyethylene raw material extruder is 30:1, and the temperatures of the four zones are respectively set to be 100, 180, 240 and 270 ℃; the length-diameter ratio of the screw of the ethylene vinyl acetate copolymer (EVA) raw material extruder is 30:1, and the temperatures of the four zones are respectively set to be 100 ℃, 180 ℃, 240 ℃ and 270 ℃. Setting the extrusion pressure to 10Mpa, cooling, calendering and sizing by a three-roll calender, and coiling by a coiling machine to obtain a UPE-EVA composite film product b with the thickness of the ultra-high molecular weight polyethylene layer being 200 mu m, the thickness of the EVA layer being 50 mu m, the total thickness being 250 mu m and the width being 500cm, as shown in figure 1.
Example two:
by adopting the production process shown in fig. 6, the modified ultra-high molecular weight polyethylene (UPE) raw material and The Polyurethane (TPU) raw material are extruded by a single screw extruder to form a melt, and the melt is extruded by a co-extrusion die to form a co-extrusion composite film. The length-diameter ratio of the screw of the ultra-high molecular weight polyethylene raw material extruder is 30:1, and the temperatures of the four zones are respectively set to be 100, 180, 240 and 270 ℃; the length-diameter ratio of a screw of the TPU raw material extruder is 30:1, and the temperatures of the four zones are respectively set to be 100 ℃, 180 ℃, 240 ℃ and 270 ℃. Setting the extrusion pressure to be 10Mpa, cooling, calendering and sizing by a three-roll calender, and coiling by a coiler to obtain a UPE-TPU composite film product a with the thickness of the ultra-high molecular weight polyethylene layer being 200 mu m, the thickness of the TPU layer being 200 mu m, the total thickness being 400 mu m and the width being 500cm, as shown in figure 1. The product has a pattern effect on the surface of the TPU layer, as shown in figure 2.
Example three:
the production process shown in the lower half of fig. 7 is adopted, the modified ultra-high molecular weight polyethylene raw material (UPE) and the ethylene-vinyl acetate copolymer (EVA) raw material are extruded by a single-screw extruder to form a melt, and the melt is extruded by a co-extrusion die to form the co-extrusion composite film. The length-diameter ratio of the screw of the ultra-high molecular weight polyethylene raw material extruder is 30:1, and the temperatures of the four zones are respectively set to be 100, 180, 240 and 270 ℃; the length-diameter ratio of the screw of the ethylene vinyl acetate copolymer (EVA) raw material extruder is 30:1, and the temperatures of the four zones are respectively set to be 100 ℃, 180 ℃, 240 ℃ and 270 ℃. Setting the extrusion pressure to be 10Mpa, cooling, calendaring and sizing by a three-roll calendar, preparing acrylate pressure-sensitive adhesive on the EVA surface by a back-rubber roll, and coiling by a coiling machine to obtain a UPE-EVA composite back-rubber film product b with the thickness of the ultra-high molecular weight polyethylene layer being 200 mu m, the thickness of the EVA layer being 50 mu m, the thickness of the pressure-sensitive adhesive layer being 50 mu m, the total thickness being 300 mu m and the width being 500cm, as shown in figure 4.
Example four:
the production process shown in the upper part of fig. 8 is adopted, modified ultra-high molecular weight polyethylene (UPE), ethylene propylene rubber (EPM) and Ethylene Propylene Diene Monomer (EPDM) raw materials are extruded by a single screw extruder to form a melt, and the melt is extruded by a co-extrusion die to form a co-extrusion composite film. The length-diameter ratio of the screw of the ultra-high molecular weight polyethylene raw material extruder is 30:1, and the temperatures of the four zones are respectively set to be 100, 180, 240 and 270 ℃; the length-diameter ratio of a screw of an ethylene propylene rubber (EPM) raw material extruder is 30:1, and the temperatures of four zones are respectively set to be 100, 180, 240 and 270 ℃; the length-diameter ratio of the screw of the Ethylene Propylene Diene Monomer (EPDM) raw material extruder is 30:1, and the temperatures of the four zones are respectively set to be 100 ℃, 180 ℃, 240 ℃ and 270 ℃. The extrusion pressure is set to 10Mpa, the product is cooled, and then the product is rolled and shaped by a three-roll calender, and is coiled by a winding machine, so that a UPE-EPM-EPDM composite membrane product c with the thickness of the ultra-high molecular weight polyethylene layer of 200 mu m, the thickness of the EPM layer of 200 mu m, the thickness of the EPDM layer of 50 mu m, the total thickness of 450 mu m and the width of 500cm is obtained, and the product is shown in figure 3. The middle layer of the product is made of thermoplastic elastomer material, and can play a role in shock absorption. The bottom layer is made of a transition layer material, and the thickness is thinner, so that the bonding performance of the composite film can be improved.
Example five:
the production process shown in the lower half of fig. 8 is adopted, modified ultra-high molecular weight polyethylene raw materials (UPE), modified polyacrylate rubber (EAM) and ethylene acrylic acid copolymer (EAA) raw materials are extruded by a single-screw extruder to form a melt, and the melt is extruded by a co-extrusion die to form a co-extrusion composite film. The length-diameter ratio of the screw of the ultra-high molecular weight polyethylene raw material extruder is 30:1, and the temperatures of the four zones are respectively set to be 100, 180, 240 and 270 ℃; the length-diameter ratio of a screw of a modified polyacrylate rubber (EAM) raw material extruder is 30:1, and the temperatures of four zones are respectively set to be 100, 180, 240 and 270 ℃; the length-diameter ratio of the screw of the raw material extruder of the ethylene acrylic acid copolymer (EAA) is 30:1, and the temperatures of the four zones are respectively set to be 100 ℃, 180 ℃, 240 ℃ and 270 ℃. Setting the extrusion pressure to 10Mpa, cooling, calendering and shaping by a three-roll calender, preparing an acrylate pressure-sensitive adhesive on the EAA layer by a back-rubber roll, and coiling by a coiling machine to obtain a UPE-EAM-EAA composite back-rubber film product c with the ultrahigh molecular weight polyethylene layer thickness of 200 mu m, the EAM layer thickness of 200 mu m, the EAA layer thickness of 50 mu m, the pressure-sensitive adhesive layer thickness of 50 mu m, the total thickness of 500 mu m and the width of 500cm, as shown in figure 5.
Application example:
the UPE-EPM-EPDM composite membrane product c is used for protecting the 2.0MW wind power blade, the size of a composite membrane for fully coating the blade is obtained by analyzing three-dimensional data of the blade with the length of 67m in a manner of adopting body tailoring, the composite membrane can be ensured to follow the shape in the membrane pasting process, then the blade is manually pasted with the membrane, and the used adhesive is an epoxy resin double-component adhesive. After the pasting is finished, curing is carried out for 24 hours, and then a portable hot-press welder is used for welding the seam to ensure that the surface of the pasting film is smooth.
Mechanically pasting a film on a 2.0MW wind power blade by using a UPE-EAM-EAA composite gum film product c, and firstly, collecting the appearance structure size of the wind power blade to form a three-dimensional space structure; then, according to the size information (67m length) of the blade, simulating the size data of the composite film required by the optimal film pasting method by using a computer on the premise of ensuring the shape following, and correspondingly cutting the composite film; then, carrying out high-altitude film pasting construction by using an artificial intelligent robot supported composite film; the protective layer on the surface of the back adhesive is removed during film pasting, the back adhesive is directly used for pasting the composite film on the blade, and hot-press welding is carried out on the joint after the film pasting is completed, so that the seamless connection effect is achieved.
Experiments prove that the composite film can well protect the blades in the whole service period of the blades; the ultra-high molecular weight polyethylene film has smooth surface and small friction coefficient, and can improve the generated energy by 3 percent; in addition, the ultra-high molecular weight polyethylene film has good anti-icing performance, and the safety of the blade in operation in a low-temperature environment is greatly improved.
According to the technical scheme, a set of complete aerial work process flow for implementing wind power blade film pasting protection is formed, seamless connection between the film and the film is achieved through the hot-press welding technology, full-coating protection of the wind power blade can be achieved through the process, the wind power blade is protected from being damaged by dirt and rain erosion during service, and meanwhile, the wind power blade has good weather resistance. In addition, the excellent anti-icing capacity of the ultra-high molecular weight polyethylene composite film enables a method for solving the problem of blade surface icing by adding heating wires in the blade matrix to be the past, and the method is not only a breakthrough in wind power blade protection, but also an innovation in wind power blade production. The film pasting process makes up the defect of discontinuity of film pasting protection relative to coating protection, and creates good conditions for popularization of the film pasting protection method of the wind power blade.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A preparation method of an ultrahigh molecular weight polyethylene composite membrane is characterized by comprising the following steps:
(1) modifying the ultrahigh molecular weight polyethylene, namely blending the ultrahigh molecular weight polyethylene and a modifier, and melting to prepare granular modified ultrahigh molecular weight polyethylene;
(2) the modified ultrahigh molecular weight polyethylene and the thermoplastic elastomer material and/or the transition layer material are co-extruded to form a film, and when the modified ultrahigh molecular weight polyethylene, the thermoplastic elastomer material and the transition layer material are co-extruded to form the film, the thermoplastic elastomer material is positioned between the modified ultrahigh molecular weight polyethylene and the transition layer material.
2. The method for preparing an ultra-high molecular weight polyethylene composite membrane according to claim 1, wherein the modifier is a disentanglement agent graphene and a dispersant polyethylene wax, and the amount of the modifier is 2-10%.
3. The method of claim 1, wherein the thermoplastic elastomer material is one of ethylene propylene rubber, modified polyacrylate rubber, fluorinated rubber, acrylonitrile-butadiene-rubber, or polyurethane.
4. The method of claim 1, wherein the transition layer material is one of ethylene acrylic acid copolymer, ethylene propylene diene monomer, and ethylene-vinyl acetate copolymer.
5. The method for preparing an ultra-high molecular weight polyethylene composite membrane according to claim 1, wherein the viscosity average molecular weight of the ultra-high molecular weight polyethylene in the step (1) is 150 ten thousand or more, and the melt mass flow rate of the modified ultra-high molecular weight polyethylene is 0.2 to 2.0g/10 min.
6. The method according to claim 1, wherein in the step (2), when the modified ultrahigh molecular weight polyethylene and the thermoplastic elastomer material are co-extruded to form the film, the thickness of the modified ultrahigh molecular weight polyethylene layer is less than or equal to that of the thermoplastic elastomer material layer, and the surface of the thermoplastic elastomer material layer has mechanical grid patterns.
7. The method according to claim 1, wherein in the step (2), when the modified ultra-high molecular weight polyethylene and the transition layer material are co-extruded to form the film, the thickness of the transition layer is smaller than that of the modified ultra-high molecular weight polyethylene layer, and the composite film is a smooth-faced composite film.
8. The preparation method of the ultra-high molecular weight polyethylene composite film according to claim 1, wherein the gum-backed composite film product is obtained by carrying out gum-backing and cooling on the modified ultra-high molecular weight polyethylene and the transition layer material through a gum-backing roller after the modified ultra-high molecular weight polyethylene and the transition layer material are co-extruded to form a film or the modified ultra-high molecular weight polyethylene, the thermoplastic elastomer material and the transition layer material are co-extruded to form a film, and then feeding the film into a winding machine for winding.
9. The method for preparing the ultra-high molecular weight polyethylene composite film according to claim 8, wherein the type of the adhesive used for the back adhesive is a solvent-based adhesive or a solvent-free thermoplastic pressure-sensitive adhesive, and the thickness of the back adhesive layer is 50-500 μm.
10. The application of the ultra-high molecular weight polyethylene composite membrane prepared by the preparation method of claim 1 is characterized in that the composite membrane is attached to a wind power blade by a manual or mechanical method according to the size information of the high-altitude wind power blade, and the seam is subjected to hot-press welding after the attachment of the membrane is completed.
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| PCT/CN2020/088989 WO2021073071A1 (en) | 2019-10-15 | 2020-05-07 | Preparation method and application of ultra-high molecular weight polyethylene composite membrane |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111390430A (en) * | 2020-03-20 | 2020-07-10 | 青岛正爱科技有限公司 | Preparation method and application of ultra-high molecular weight polyethylene welding wire |
| WO2021073071A1 (en) * | 2019-10-15 | 2021-04-22 | 青岛正爱科技有限公司 | Preparation method and application of ultra-high molecular weight polyethylene composite membrane |
| CN113001995A (en) * | 2021-03-29 | 2021-06-22 | 青岛思恩科技有限公司 | Wind-powered electricity generation blade composite protection film and can dismantle wind-powered electricity generation blade protection device |
| CN114536799A (en) * | 2022-02-23 | 2022-05-27 | 宁波腾燊科技发展有限公司 | Production equipment and production method of ultra-high molecular weight polyethylene composite membrane |
| CN114851661A (en) * | 2022-04-29 | 2022-08-05 | 宁波腾燊科技发展有限公司 | Composite film for protecting front edge of fan blade and production method thereof |
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| CN114031832A (en) * | 2021-11-02 | 2022-02-11 | 宁波禾隆新材料股份有限公司 | Surface layer material for wood-plastic section and preparation method of wood-plastic section composite material with surface layer material |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1228056A (en) * | 1997-03-31 | 1999-09-08 | 三井化学株式会社 | Multilayered laminate containing ultrahigh-molecular polyolefin layer, process for producing same, and apparatus therefor |
| CN101993666A (en) * | 2009-08-06 | 2011-03-30 | 日东电工株式会社 | Protecting film for blade of wind power generator |
| CN102458839A (en) * | 2009-04-14 | 2012-05-16 | 克莱博格橡胶股份有限公司 | Composite components and heat-curing resins and elastomers |
| CN102977803A (en) * | 2012-11-15 | 2013-03-20 | 暨南大学 | Stainless steel protective film substrate material layer and stainless steel protective film obtained thereof |
| CN103724758A (en) * | 2013-12-05 | 2014-04-16 | 王庆昭 | Manufacturing technology and manufacturing device for melt extrusion and stretching film formation of ultra-high molecular weight polyethylene film |
| CN206048956U (en) * | 2016-08-17 | 2017-03-29 | 浙江佑威新材料有限公司 | A kind of modified vacuum bag film |
| KR20180003659A (en) * | 2016-06-30 | 2018-01-10 | (주)대한솔루션 | Dash insulation pad for vehicle |
| CN108136716A (en) * | 2015-10-22 | 2018-06-08 | 乌本产权有限公司 | The composite component of multilayer |
| CN109996673A (en) * | 2016-11-10 | 2019-07-09 | 乌本产权有限公司 | MULTILAYER COMPOSITE component |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013217128A1 (en) * | 2013-08-28 | 2015-03-05 | Wobben Properties Gmbh | Rotor blade element for a wind energy plant, rotor blade, and a manufacturing method therefor and wind turbine with rotor blade |
| BR112018000856B1 (en) * | 2015-07-17 | 2022-04-05 | Lm Wp Patent Holding A/S | Method of manufacturing a wind turbine blade |
| CN110815879A (en) * | 2019-10-15 | 2020-02-21 | 青岛正爱科技有限公司 | Preparation method and application of ultra-high molecular weight polyethylene composite membrane |
-
2019
- 2019-10-15 CN CN201910976798.6A patent/CN110815879A/en active Pending
-
2020
- 2020-05-07 WO PCT/CN2020/088989 patent/WO2021073071A1/en active Application Filing
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1228056A (en) * | 1997-03-31 | 1999-09-08 | 三井化学株式会社 | Multilayered laminate containing ultrahigh-molecular polyolefin layer, process for producing same, and apparatus therefor |
| CN102458839A (en) * | 2009-04-14 | 2012-05-16 | 克莱博格橡胶股份有限公司 | Composite components and heat-curing resins and elastomers |
| CN101993666A (en) * | 2009-08-06 | 2011-03-30 | 日东电工株式会社 | Protecting film for blade of wind power generator |
| CN102977803A (en) * | 2012-11-15 | 2013-03-20 | 暨南大学 | Stainless steel protective film substrate material layer and stainless steel protective film obtained thereof |
| CN103724758A (en) * | 2013-12-05 | 2014-04-16 | 王庆昭 | Manufacturing technology and manufacturing device for melt extrusion and stretching film formation of ultra-high molecular weight polyethylene film |
| CN108136716A (en) * | 2015-10-22 | 2018-06-08 | 乌本产权有限公司 | The composite component of multilayer |
| KR20180003659A (en) * | 2016-06-30 | 2018-01-10 | (주)대한솔루션 | Dash insulation pad for vehicle |
| CN206048956U (en) * | 2016-08-17 | 2017-03-29 | 浙江佑威新材料有限公司 | A kind of modified vacuum bag film |
| CN109996673A (en) * | 2016-11-10 | 2019-07-09 | 乌本产权有限公司 | MULTILAYER COMPOSITE component |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021073071A1 (en) * | 2019-10-15 | 2021-04-22 | 青岛正爱科技有限公司 | Preparation method and application of ultra-high molecular weight polyethylene composite membrane |
| CN111390430A (en) * | 2020-03-20 | 2020-07-10 | 青岛正爱科技有限公司 | Preparation method and application of ultra-high molecular weight polyethylene welding wire |
| CN113001995A (en) * | 2021-03-29 | 2021-06-22 | 青岛思恩科技有限公司 | Wind-powered electricity generation blade composite protection film and can dismantle wind-powered electricity generation blade protection device |
| CN114536799A (en) * | 2022-02-23 | 2022-05-27 | 宁波腾燊科技发展有限公司 | Production equipment and production method of ultra-high molecular weight polyethylene composite membrane |
| CN114536799B (en) * | 2022-02-23 | 2024-05-24 | 宁波腾燊科技发展有限公司 | Production equipment and production method of ultra-high molecular weight polyethylene composite film |
| CN114851661A (en) * | 2022-04-29 | 2022-08-05 | 宁波腾燊科技发展有限公司 | Composite film for protecting front edge of fan blade and production method thereof |
| CN114851661B (en) * | 2022-04-29 | 2024-06-07 | 宁波腾燊科技发展有限公司 | Composite film for protecting front edge of fan blade and production method thereof |
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|---|---|
| WO2021073071A1 (en) | 2021-04-22 |
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