CN116021807A - Method for manufacturing composite board and composite board - Google Patents
Method for manufacturing composite board and composite board Download PDFInfo
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- CN116021807A CN116021807A CN202310123686.2A CN202310123686A CN116021807A CN 116021807 A CN116021807 A CN 116021807A CN 202310123686 A CN202310123686 A CN 202310123686A CN 116021807 A CN116021807 A CN 116021807A
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- composite board
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- pultruded
- die
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- 239000002131 composite material Substances 0.000 title claims abstract description 76
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims description 19
- 239000000463 material Substances 0.000 claims abstract description 23
- 229920005989 resin Polymers 0.000 claims abstract description 21
- 239000011347 resin Substances 0.000 claims abstract description 21
- 239000000203 mixture Substances 0.000 claims abstract description 19
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 8
- 239000004917 carbon fiber Substances 0.000 claims description 8
- 239000004744 fabric Substances 0.000 claims description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 8
- 239000003365 glass fiber Substances 0.000 claims description 7
- 229920001187 thermosetting polymer Polymers 0.000 claims description 6
- 229920005992 thermoplastic resin Polymers 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000007781 pre-processing Methods 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 abstract description 9
- 230000007797 corrosion Effects 0.000 abstract description 9
- 239000002699 waste material Substances 0.000 abstract description 9
- 238000004064 recycling Methods 0.000 abstract description 6
- 238000013461 design Methods 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229930040373 Paraformaldehyde Natural products 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000002144 chemical decomposition reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 229920006241 epoxy vinyl ester resin Polymers 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920006380 polyphenylene oxide Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
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Abstract
The invention belongs to the technical field of composite material products, and discloses a manufacturing method of a composite board and the composite board, wherein the manufacturing method of the composite board comprises the following steps of S100, mixing a blade reclaimed material and resin to form a mixture; step 200, placing a pultruded sheet in a die; step S300, adding a mixture into a die; step S400, performing heating treatment and pressurizing treatment on the die. The manufacturing method of the composite board can realize the manufacturing of the composite board with high strength, wear resistance and corrosion resistance, improve the modulus and the axial strength of the composite board, realize the recycling of waste wind power blade materials, and further expand the application scene of the waste wind power blade materials.
Description
Technical Field
The invention relates to the technical field of composite material products, in particular to a manufacturing method of a composite board and the composite board.
Background
With the development of wind power industry, the scale of retired fans is increasing. How to make the recycling of retired blades on the basis of meeting the environmental protection becomes the key for wind power enterprises to realize the green sustainable development. At present, the recovery of retired blades initially forms a plurality of technical routes including comprehensive utilization, mechanical crushing method, pyrolysis method, chemical degradation method, energy acquisition method and the like. The strength of the existing wind power blade plate, the bonding and fixing performance among the layers of pultruded sheets and the wear resistance and corrosion resistance of the whole wind power blade still need to be improved.
And the number of application scenes of the retired blades is smaller at present, and the application scenes of the retired blades still need to be expanded.
Therefore, a method for manufacturing a composite board and a composite board are needed to solve the above problems.
Disclosure of Invention
According to one aspect of the invention, the purpose is to provide a manufacturing method of the composite board, which can realize the manufacturing of the composite board with high strength, wear resistance and corrosion resistance, improve the modulus and the axial strength of the composite board, realize the recycling of waste wind power blade materials, and further expand the application scene of the waste wind power blade materials.
To achieve the purpose, the invention adopts the following technical scheme:
a method of manufacturing a composite board comprising:
step S100, mixing the blade reclaimed material and the resin to form a mixture;
step 200, placing a pultruded sheet in a die;
step S300, adding a mixture into a die;
step S400, performing heating treatment and pressurizing treatment on the die.
As a preferable mode of the method for manufacturing a composite board provided by the present invention, before step S200, the following steps are further performed:
the method comprises the steps of preprocessing a die, including die cleaning and die preheating.
As a preferable scheme of the method for manufacturing a composite board provided by the invention, the step S100 specifically includes the following steps:
step S110, presetting a required mixing ratio;
and step S120, mixing the blade reclaimed materials and the resin according to the mixing proportion required.
As a preferable mode of the method for manufacturing a composite board provided by the invention, in step S200, the number of the pultruded sheets is one or at least two, and the number of the pultruded sheets in each layer is one or at least two.
As a preferable mode of the method for manufacturing a composite board provided by the present invention, after step S400, the following steps are further performed:
step S500, exhausting the die cavity;
step S600, maintaining the molding temperature, and curing and forming the mixture;
step S700, demolding treatment.
As a preferable mode of the method for manufacturing a composite board provided by the invention, between the step S200 and the step S300, the method further comprises the following steps:
and (3) laying a fabric layer on the surface of the pultruded sheet.
As a preferable embodiment of the composite board provided by the present invention, the resin used in step S100 is a thermoplastic resin or a thermosetting resin.
As a preferable mode of the method for producing a composite board provided by the present invention, the pultruded sheet used in step S200 is a glass fiber pultruded sheet, a carbon fiber pultruded sheet or a carbon fiber/glass fiber hybrid pultruded sheet.
According to one aspect of the invention, the composite board has the advantages of high strength and stable structure, and meanwhile, the composite board can recycle waste wind power blade materials and is high in economy.
To achieve the purpose, the invention adopts the following technical scheme:
the composite board is manufactured by adopting the manufacturing method of the composite board in any one of the schemes.
As a preferable scheme of the composite board provided by the invention, the number of the pultruded sheets in the composite board is at least two.
The invention has the beneficial effects that:
according to the manufacturing method of the composite board, the recycled materials and the resin of the blades are mixed to form the mixture, and the mixture can be used as a skin structure to wrap the outside of the pultrusion sheet after being solidified, so that the wear resistance and corrosion resistance are ensured, and the recycling of the waste wind power blade materials is realized. By paving the pultrusion sheet in the mixture, the pultrusion sheet is used as a structural member of the composite board, plays a role of a reinforcing rib, provides excellent axial strength and modulus for the composite board, and ensures the structural strength of the whole composite board. The manufacturing method of the composite board can realize the manufacturing of the composite board with high strength, wear resistance and corrosion resistance, improve the modulus and the axial strength of the composite board, realize the recycling of waste wind power blade materials, and further expand the application scene of the waste wind power blade materials.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following description will briefly explain the drawings needed in the description of the embodiments of the present invention, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the contents of the embodiments of the present invention and these drawings without inventive effort for those skilled in the art.
FIG. 1 is a flow chart of a method of manufacturing a composite board provided by an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a composite board according to a first embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of a composite board according to a first embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of a composite board according to a second embodiment of the present invention;
fig. 5 is a schematic cross-sectional view of a composite board according to a second embodiment of the present invention.
In the figure:
1. pultruding the sheet; 2. and (5) mixing materials.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.
In the description of the present invention, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", "left", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
Example 1
FIG. 1 shows a flow chart of a method of manufacturing a composite board provided by an embodiment of the present invention; FIG. 2 shows a schematic cross-sectional view of a composite board according to a first embodiment of the present invention; fig. 3 shows a second schematic cross-sectional view of a composite board according to a first embodiment of the present invention. Referring to fig. 1, the present embodiment provides a method for manufacturing a composite board, which specifically includes the following steps:
step S100, mixing the blade reclaimed material and the resin to form a mixture 2;
the method comprises the steps of preprocessing a die, including die cleaning and die preheating;
step S200, placing the pultruded sheet 1 in a die;
step S300, adding the mixture 2 into a die;
step S400, performing heating treatment and pressurizing treatment on the die;
s500, exhausting the cavity of the die, and removing impurities such as low molecular matters, volatile matters and air in the die through the step;
step S600, maintaining the molding temperature, and forming a skin structure after the mixture 2 is solidified and molded;
step S700, demolding treatment.
Specifically, through step S100, the mixture 2 after being cured can be used as a skin structure to wrap the exterior of the pultrusion sheet 1, so as to ensure wear resistance and corrosion resistance, and realize recycling of waste wind power blade materials. The blade reclaimed material is granular or powdery filler prepared by crushing scrapped or retired wind power blades. The resin is a thermoplastic resin or a thermosetting resin. In this embodiment, the thermoplastic resin may be one or more selected from polyethylene, polypropylene, polyvinyl chloride, polystyrene, polymethyl methacrylate, polyester, polyoxymethylene, polyamide or polyphenylene oxide. The thermosetting resin may be one or more of epoxy resin, polyurethane (here thermosetting polyurethane), unsaturated polyester or epoxy vinyl ester resin.
In other embodiments, the resin may be a resin other than the thermoplastic resin or the thermosetting resin mentioned above, so as to be capable of bonding and fixing the pultruded sheet 1 and forming a wear-resistant and corrosion-resistant skin structure, and the composition of the resin is not limited in this embodiment.
More specifically, the step S100 specifically includes the following steps:
step S110, presetting a required mixing ratio;
and step S120, mixing the blade reclaimed materials and the resin according to the mixing proportion required.
The above-mentioned required mixing ratio may be changed according to the requirements for various physical properties of the composite board in actual production, and the present embodiment does not limit the mixing ratio of the blade reclaimed material and the resin.
Still more specifically, the pultruded sheet 1 used in this step S200 is a glass fiber pultruded sheet, a carbon fiber pultruded sheet or a carbon fiber/glass fiber hybrid pultruded sheet. The glass fiber is an inorganic nonmetallic material with excellent performance, and has the advantages of good insulativity, strong heat resistance, good corrosion resistance and high mechanical strength, but has the disadvantages of brittle property and poor wear resistance. The carbon fiber mainly comprises carbon element, has the characteristics of high temperature resistance, friction resistance, heat conduction, corrosion resistance and the like, has high strength and modulus along the axial direction of the fiber, and has high specific strength and specific modulus due to small density of the carbon fiber. In practical production, the material of the pultruded sheet 1 may be selected according to the strength or hardness characteristics of the wind turbine blade, and the embodiment is not limited.
More specifically, in step S200 of the present embodiment, the pultruded sheets 1 are one layer, and the number of the pultruded sheets 1 per layer is one. That is, the pultruded sheet 1 is integrally formed in the mixture 2 through steps S400-S700, and after the mixture 2 is solidified to form a skin structure, the pultruded sheet 1 can be used as a structural member of a composite board to play a role of a reinforcing rib, so that excellent axial strength and modulus are provided for the composite board, namely, the structural strength of the whole composite board is ensured. The cross-sectional shape of the pultruded sheet 1 can be selected according to the actual design requirements, and the present embodiment is not limited herein.
Preferably, between step S200 and step S300, the following steps are further included:
a fabric layer is laid on the surface of the pultruded sheet 1. In this embodiment, the fabric layer may be one or more selected from unidirectional cloth, multiaxial cloth, continuous felt, chopped strand mat or surface felt, and the laying angle and the laying layer number of the fabric layer on the surface of the pultruded sheet 1 are flexibly selected according to actual design requirements, which is not limited herein. The fabric layer can further improve the reliability of adhesion with the pultruded sheet 1 during the curing of the mix 2.
Further, after step S700, post-processing is also required. The post-treatment process specifically comprises the step of storing the demoulded composite board for a period of time at a higher temperature, so that the resin in the composite board is further solidified, and the hardness and the strength of the finished composite board are improved.
The embodiment also provides a composite board, which is manufactured by adopting the manufacturing method of the composite board provided by the embodiment. The composite sheet comprises a layer of pultruded sheet material 1.
Example two
FIG. 4 shows a first schematic cross-sectional view of a composite board according to a second embodiment of the present invention; fig. 5 shows a second schematic cross-sectional view of a composite board according to a second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the pultruded sheet 1 of the composite board provided in this embodiment has at least two layers.
Specifically, in step S200 of the present embodiment, the pultruded sheets 1 are provided in at least two layers, and the number of the pultruded sheets 1 per layer is one or at least two. Preferably, referring to fig. 4 and 5, the plurality of pultruded sheets 1 are arranged in parallel at intervals, and the plurality of pultruded sheets 1 of each layer are also arranged in parallel at intervals, so as to form a plurality of pultruded sheet column groups which are regularly arranged, thereby further improving the internal supporting performance of the composite board.
More specifically, the plurality of sets of pultruded sheet rows may be arranged in an irregular manner, and the plurality of pultruded sheets 1 in each set of sets of pultruded sheet rows may be arranged in a non-parallel manner. The arrangement of the plurality of pultruded sheets 1 may be selected according to the actual design requirement, and the present embodiment is not limited herein.
It is to be understood that the above examples of the present invention are provided for clarity of illustration only and are not limiting of the embodiments of the present invention. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the invention. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (10)
1. A method for manufacturing a composite board, comprising:
s100, mixing the blade reclaimed material and the resin to form a mixture (2);
s200, placing a pultruded sheet (1) in a die;
s300, adding the mixture (2) into a die;
s400, performing heating treatment and pressurizing treatment on the die.
2. The method of manufacturing a composite board according to claim 1, further comprising, prior to step S200, the steps of:
the method comprises the steps of preprocessing a die, including die cleaning and die preheating.
3. The method of manufacturing a composite board according to claim 1, wherein step S100 specifically includes the steps of:
s110, presetting a required mixing proportion;
s120, mixing the blade reclaimed materials and the resin according to the mixing proportion of the requirements.
4. The method of manufacturing a composite board according to claim 1, wherein in step S200, the number of pultruded sheets (1) is one or at least two, and the number of pultruded sheets (1) per layer is one or at least two.
5. The method of manufacturing a composite board according to claim 1, further comprising, after step S400, the steps of:
s500, exhausting the die cavity;
s600, maintaining the molding temperature, and curing and molding the mixture (2);
s700, demolding treatment.
6. The method of manufacturing a composite board according to claim 1, further comprising, between step S200 and step S300, the steps of:
a fabric layer is laid on the surface of the pultruded sheet (1).
7. The method of manufacturing a composite board according to claim 1, wherein the resin used in step S100 is a thermoplastic resin or a thermosetting resin.
8. The method of manufacturing a composite board according to claim 1, wherein the pultruded sheet (1) used in step S200 is a glass fiber pultruded sheet, a carbon fiber pultruded sheet or a carbon fiber/glass fiber hybrid pultruded sheet.
9. A composite board, characterized in that the composite board is manufactured by the manufacturing method of the composite board according to any one of claims 1 to 8.
10. Composite board according to claim 9, characterized in that the pultruded sheets (1) in the composite board are at least two layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310123686.2A CN116021807A (en) | 2023-02-16 | 2023-02-16 | Method for manufacturing composite board and composite board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310123686.2A CN116021807A (en) | 2023-02-16 | 2023-02-16 | Method for manufacturing composite board and composite board |
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| Publication Number | Publication Date |
|---|---|
| CN116021807A true CN116021807A (en) | 2023-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310123686.2A Pending CN116021807A (en) | 2023-02-16 | 2023-02-16 | Method for manufacturing composite board and composite board |
Country Status (1)
| Country | Link |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1651502A (en) * | 2004-12-29 | 2005-08-10 | 刘明春 | Recovery and shaping process of poly propylene phonol formaldehyde resin, polyurethane composite waste material |
| CN101367259A (en) * | 2008-10-13 | 2009-02-18 | 杭州金盟道路设施有限公司 | Process for manufacturing manhole cover |
| CN103038278A (en) * | 2010-06-04 | 2013-04-10 | 恩塞尔复合材料有限责任公司 | Thermos et composite made from engineered recycled rubber powder |
-
2023
- 2023-02-16 CN CN202310123686.2A patent/CN116021807A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1651502A (en) * | 2004-12-29 | 2005-08-10 | 刘明春 | Recovery and shaping process of poly propylene phonol formaldehyde resin, polyurethane composite waste material |
| CN101367259A (en) * | 2008-10-13 | 2009-02-18 | 杭州金盟道路设施有限公司 | Process for manufacturing manhole cover |
| CN103038278A (en) * | 2010-06-04 | 2013-04-10 | 恩塞尔复合材料有限责任公司 | Thermos et composite made from engineered recycled rubber powder |
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Effective date of registration: 20231008 Address after: 222000 China (Jiangsu) Pilot Free Trade Zone Lianyungang Economic and Technological Development Zone Comprehensive Bonded Zone Comprehensive Building 401-479, Lianyungang City, Jiangsu Province Applicant after: Zhongfu Lianzhong (Lianyungang) Wind Power Blade Co.,Ltd. Address before: 222069 Jinqiao Road, Dapu Industrial Zone, Lianyungang, Jiangsu 6 Applicant before: LIANYUNGANG ZHONGFU LIANZHONG COMPOSITES GROUP Co.,Ltd. |