CN113958779A - Three-dimensional reinforced resin-based fiber composite material winding pipe and manufacturing method thereof - Google Patents
Three-dimensional reinforced resin-based fiber composite material winding pipe and manufacturing method thereof Download PDFInfo
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- CN113958779A CN113958779A CN202111217799.6A CN202111217799A CN113958779A CN 113958779 A CN113958779 A CN 113958779A CN 202111217799 A CN202111217799 A CN 202111217799A CN 113958779 A CN113958779 A CN 113958779A
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- 238000000034 method Methods 0.000 claims description 16
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- 239000003795 chemical substances by application Substances 0.000 claims description 9
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Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/16—Rigid pipes wound from sheets or strips, with or without reinforcement
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/22—Tubes or pipes, i.e. rigid
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- General Engineering & Computer Science (AREA)
- Laminated Bodies (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention provides a three-dimensional reinforced resin matrix fiber composite material winding pipe, which is characterized in that the pipe wall of the composite material winding pipe sequentially comprises the following components from inside to outside: the fiber tows radially penetrate through the second fiber felt layer, the sand inclusion layer and the first resin fiber felt or the fiber cloth layer to form a three-dimensional fiber network structure, and part of fibers of the second resin fiber felt layer are punched to forcibly hook down irregular fiber tows. The three-dimensional reinforced resin matrix fiber composite material winding pipe improves the interlayer bonding force of the composite material pressure pipeline, and improves the rigidity of the pipeline ring and the impact strength of the pipe body.
Description
Technical Field
The invention relates to the field of composite material sand inclusion pipelines, in particular to a three-dimensional reinforced resin matrix fiber composite material winding pipe and a manufacturing method thereof.
Background
The pipeline plays an important role in national economy, pipelines of various materials and specifications cannot be separated in urban construction and industrial development, and the construction of an urban underground pipe network is a mark of urban progress. Common pipelines include steel pipelines, plastic corrugated pipes, PVC pipes, composite pipes, and the like. The steel pipeline is easy to rust, the cost is higher, the concrete pipeline has overlarge dead weight, the construction and installation are not easy, the glass fiber reinforced plastic pipeline is a composite material pipeline which is made by taking glass fiber as a reinforcing material and resin as a base material and adopting a winding forming process, the composite material pipeline has the characteristics of light weight, high strength, good hydraulic performance, corrosion resistance and the like, can solve the problems, and is widely applied to the water supply and drainage industry. With the progress of the process and the development of the industry, the glass fiber reinforced plastic pipeline has wide application prospect. Because of the low elastic modulus of the glass fiber reinforced plastic, the thickness of the pipe wall needs to be increased in order to improve the rigidity of the glass fiber reinforced plastic pipeline, which increases the cost. The glass fiber reinforced plastic sand inclusion pipe is produced by transportation, the glass fiber reinforced plastic sand inclusion pipe adopts the sand inclusion layer to increase the thickness of the pipe, and the rigidity is improved at lower cost. The sandwich structure with sand sandwiched in the middle formed by the needling process can meet the performance requirements of the pipeline to a certain extent.
Currently, the fiber winding manufacturing process is mainly adopted for forming and manufacturing the composite material pressure pipeline. Although the fiber winding pressure pipeline can improve the bearing capacity and the ring stiffness of the composite material pressure pipeline to a certain extent to 5000N/m2However, the fiber-wound pressure pipeline is a laminated structure essentially, the interlayer bonding force is about 2MPa when fibers are laid at 0 degrees, when the fiber-wound pressure pipeline is under load, the bonding between layers is only bonded by a matrix, and the interlayer bonding strength and the shear strength are poor, so that the bonding between the fibers and the matrix interface is not ideal, and various failure modes such as separation and delamination are easily caused. The glass fiber reinforced plastic sand inclusion pipeline has the same problem that the sand inclusion layer of the sand inclusion pipeline is different from the inner resin fiber structure layer and the outer resin fiber structure layer in material, so that the sand inclusion pipeline is easy to delaminate or the sand inclusion layer is easy to damage under the action of impact or bending only by combining part of the bonding force of the resin and the mortar. The combination of the sand inclusion layer and the resin fiber winding layer is damaged, so that the proper bearing capacity of the pipeline is lost.
At present, the method of the three-dimensional pipeline is to mix 30-50mm long fibers in a sand inclusion layer for reinforcement, and also to realize a three-dimensional structure by spraying 30-50mm short-cut fibers while winding, the two modes need to add fibers, the production cost of the pipeline is increased, a local three-dimensional structure can be formed only in the spraying layer, the contribution to the overall strength is small, on the other hand, the added short-cut fibers can be wound, compacted and flattened by the next layer when winding, if the winding mode is defined as the winding mode of winding one layer after another in an XY direction plane on the space, the winding pipe is not connected with the fibers in the Z direction in the vertical direction, no fibers in the Z direction exist, the fibers in the Z direction can not form hook connection with the fibers in the upper layer and the lower layer, the bonding force between the layers does not contribute, the winding pipe is still in a two-dimensional structure, and no reinforcing effect is generated on the whole pipeline.
Disclosure of Invention
The invention provides a three-dimensional reinforced resin matrix fiber composite material winding pipe and a manufacturing method thereof, and the winding pipe has the advantages of high interlayer bonding strength and large shearing force. The fiber bundles are used for connecting the layers, so that the interlayer bonding force is far greater than that of the traditional fiber layer and the mortar layer.
On one hand, the invention provides a three-dimensional reinforced resin matrix fiber composite material winding pipe, which is characterized in that the pipe wall of the composite material winding pipe sequentially comprises the following components from inside to outside: the fiber tows radially penetrate through the second resin fiber felt belt layer, the sand inclusion layer and the first resin fiber felt or woven belt winding layer to form a three-dimensional fiber network structure.
Further, the first resin-based fiber reinforced winding structure layer and the second resin-based fiber reinforced winding structure layer are formed by winding continuous basalt fibers or glass fibers.
Further, the sand inclusion layer is resin mortar.
Further, the second resin fiber mat tape layer is a fiber mat tape laid with short basalt fibers or glass fibers. The first resin fiber felt or fiber woven cloth tape and the second resin fiber felt tape are felts or woven tapes with a roll of a certain width.
In another aspect, the invention further provides a method for manufacturing the three-dimensional reinforced resin-based fiber composite material winding pipe, which comprises the following steps:
s1: mold preparation, equipment debugging, resin and fiber material preparation
S2: winding resin-based fiber reinforced winding structure layer
S3: three-dimensional structure layer formed by winding first resin fiber felt or fiber woven layer, sand inclusion layer and second resin fiber felt layer through needling
On the basis of a first resin fiber felt or a fiber woven cloth tape, quartz sand and resin are uniformly spread on the first resin fiber felt or the fiber woven cloth tape after being mixed by an online wet method, a second resin fiber felt tape layer is synchronously coated, resin-quartz sand of the upper and lower coated felts and cloth is needled, and the second resin fiber felt tape layer and the first resin fiber felt layer or the fiber cloth are pierced to realize interpenetration with the resin-quartz sand to form a three-dimensional fiber network structure;
s4: winding a first resin-based fiber reinforced winding structure layer and a second resin-based fiber reinforced winding structure layer;
s5: film covering, infrared curing, finishing, detecting and ex-warehouse.
Further, the fiber tows are interpenetrated through needling equipment, the needling equipment reciprocates up and down, fibers in the first resin fiber felt or the fiber cloth layer and/or the second resin fiber felt belt layer are driven to penetrate through the sand inclusion layer through the needling part, and the processed three-dimensional structure belt is immediately wound on the upper structure layer and compacted, and is finished and leveled.
Further, the fiber tows are perpendicular to the first resin fiber mat or fiber cloth layer and the second resin fiber mat layer.
Further, the second resin fiber felt belt layer is formed by laying short basalt fibers or short glass fibers.
Further, before step S1, the fibers of the first resin fiber mat layer and/or the second resin fiber mat layer are surface-coated with a sizing agent slurry prepared by using an epoxy type emulsion and a water-based polyurethane emulsion as main film forming agents and combining with matched auxiliaries.
Further, 5-10% of the fibers in the second resin fiber felt layer participate in the penetration.
Compared with the prior art, the beneficial technical effects of the application are that:
the utility model provides a three-dimensional reinforcing resin matrix fiber composite winding pipe through the fibrous introduction of Z direction for the pipeline becomes three-dimensional stress structure by the stress structure between the layer, has improved the binding force that bonds between the knot layer of combined material pressure pipeline, improves pipeline ring rigidity and pipeline impact resistance and the ring rigidity of whole pipeline.
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 introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a wound pipe made of a three-dimensional reinforced resin-based fiber composite material according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1, a winding pipe made of three-dimensional reinforced resin matrix fiber composite material of the present application sequentially comprises, from inside to outside: the resin fiber reinforced composite material comprises a first resin fiber reinforced winding structure layer 1, a first resin fiber felt layer 2, a sand inclusion layer 3, a second resin fiber felt layer 4 and a second resin fiber reinforced winding structure layer 6, wherein a fiber tow 5 radially penetrates through the second resin fiber felt layer 4, the sand inclusion layer 3 and the first resin fiber felt layer 2 to form a three-dimensional fiber network structure, and the fiber tow 5 is a part of fibers of the second resin fiber felt layer 4, is arranged below a barbed needle-punched belt and penetrates through the 2 fiber belt layer.
The fiber tows 4 are irregular fiber tows formed by part of fibers of the first resin fiber felt layer 2 and the second resin fiber felt layer 5 reciprocating up and down.
The three-dimensional winding tube is structurally divided into warp, weft, and binder yarns. The space relation between warp and weft yarns is that the warp and weft yarns are mutually contacted and distributed in parallel, so that the rigidity and the strength in a plane can be extremely high; and the binding riveting between each other is accomplished through carrying out intercrossing between the layer to arrange between the warp, the woof in will jointing yarn and face on the thickness direction of the three-dimensional reinforced resin base fiber composite winding pipe of this application to can improve the mechanical strength in the face effectively, make the ability of the damage of resistance of thickness direction can effectual improvement. Compared with the traditional laminated composite material, the addition of the binding yarns in the thickness direction enables the content of the fiber volume between layers to be obviously improved, meanwhile, the fiber bundles 5 are riveted between the layers, and the interlaminar shearing performance and the impact resistance can be effectively improved and overcome the delamination phenomenon. The three-dimensional reinforced resin matrix fiber composite material winding pipe can improve the overall mechanical property of the winding pipe at lower preparation cost. The resin-based fiber composite material realizes the targeted reinforcement of the resin-based fiber composite material to the strength orientation of the product.
In the embodiment of the application, the first resin-based fiber reinforced winding structure layer 1 and the second resin-based fiber reinforced winding structure layer 6 are formed by winding continuous basalt fibers CBF.
In the embodiment of the present application, the sand inclusion layer 3 is resin mortar.
In the embodiment of the present application, the second resin fiber mat layer 4 is a fiber mat laid with short basalt fibers.
In the application, the method for manufacturing the three-dimensional reinforced resin-based fiber composite material winding pipe comprises the following steps:
s1: preparing a mould, debugging equipment, and preparing resin and fiber materials;
s2: winding a resin-based fiber reinforced winding structure layer 1;
s3: winding a three-dimensional structure layer consisting of a first resin fiber felt layer 2, a sand inclusion layer 3, a second resin fiber felt layer 4 and radial fibers 5 brought by needling the fiber felt layer 4:
on the basis of a first resin fiber felt layer 2, quartz sand and resin are mixed in an online wet method to obtain a mixture 3, the mixture 3 is uniformly spread on the first resin fiber felt layer 2, a second resin fiber felt belt layer 4 is synchronously coated, resin-quartz sand coated on an upper felt and a lower felt are subjected to needling, and the second resin fiber felt layer 4 and the first resin fiber felt belt layer 2 are pierced to realize interpenetration with the resin-quartz sand to form a three-dimensional fiber network structure;
s4: so as to form a three-dimensional structure tape coil which is then wound on the first resin fiber structure layer and then wound with a second resin-based fiber reinforced structure layer 6;
s5: film covering, infrared curing, finishing, detecting and ex-warehouse.
In the embodiment of the application, the fiber tows 5 are interpenetrated through a needling device, the needling device reciprocates up and down, the front end of a needle is provided with a barb, fibers of the second resin fiber felt layer 4 are driven to penetrate through the sand inclusion layer 3 and the first resin fiber felt 2 through needling to form a fiber bundle 5, and the tail end of the fiber bundle is pressed down between 1 and 2 when the three-dimensional belt is rolled to form a riveting reinforcing effect of 5 and 4 and 2 to 3.
In the embodiments of the present application, the fiber tows 5 are perpendicular to the first and second resin fiber mat layers 2 and 4.
In the embodiment of the present application, the second resin fiber mat tape layer 4 is laid by short basalt fibers to have a three-dimensional structure; before step S1, the epoxy emulsion and the aqueous polyurethane emulsion are used as main film forming agents and combined with matched auxiliaries to prepare corresponding sizing agent slurry to perform surface coating on the fibers of the first resin fiber mat layer 2 and/or the second resin fiber mat layer 4. The basalt fiber has smooth surface, small specific surface area and low surface energy, and the active surface is generally not more than 10% of the total surface area, so that the basalt fiber and matrix resin have poor wetting performance, weak binding force and low interlaminar shear strength of the composite material. The bonding force between the resin and the resin can be improved after the resin is soaked.
Therefore, in order to improve the tensile strength of the basalt fiber in the production process, the generation of surface defects is avoided as much as possible, so that the improvement of the wettability of the basalt fiber and the resin is the key for improving the bonding force of the fiber and the resin. The method adopts epoxy type emulsion and waterborne polyurethane emulsion as main film forming agents and combines the main film forming agents and matched auxiliary agents to prepare corresponding impregnating compound slurry for surface coating of basalt fibers. The epoxy type impregnating compound has good adhesion and bundling property because the main film-forming agent contains reactive epoxy groups, polar hydroxyl groups and the like, and meanwhile, other auxiliary agents in the impregnating compound can also have certain influence on the adhesion of the epoxy resin, so that the film viscosity of the impregnating compound after film forming is high, the bundling property of fibers is good, the breaking strength of the fibers is high, and the mechanical property of the composite material is improved to a certain extent. The polyurethane type impregnating compound contains isocyanate groups with strong polarity, has good bonding and bundling properties on single fibers, simultaneously has ether groups and ester groups in polyurethane molecules as soft segments and hard segments in molecular chains, can realize the toughness design of a film, bundles among the single fibers mainly by intermolecular van der Waals force, has weak bundling strength, but is easy to immerse resin, so that the fibers can be fully infiltrated, thereby greatly improving the mechanical property of the composite material.
In the examples of the present application, 5 to 10% by mass of the fibers in the second resin fiber mat layer 4 participate in the piercing.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention. In particular, the basalt fiber is the focus of the present invention, but other fibers such as glass fiber, polyester fiber, aramid fiber and the like can also be used to realize the technical scope of the present technology. Wherein the resin refers to thermosetting resin, namely unsaturated polyester resin, epoxy resin, polyurethane resin, other modified resin and the like.
Claims (9)
1. The utility model provides a three-dimensional reinforced resin base fiber composite material winding pipe which characterized in that, the pipe wall of composite material winding pipe is by interior to outer in proper order: the resin fiber reinforced plastic composite material comprises a first resin fiber reinforced winding structure layer (1), a first resin fiber felt or woven belt winding layer (2), a sand inclusion layer (3), a second resin fiber felt belt layer (4) and a second resin fiber reinforced winding structure layer (6), wherein a fiber tow (5) radially penetrates through the second resin fiber felt belt layer (4), the sand inclusion layer (3) and the first resin fiber felt or woven belt winding layer (2) to form a three-dimensional fiber network structure.
2. The wound pipe of three-dimensional reinforced resin-based fiber composite material according to claim 1, wherein the first resin-based fiber reinforced wound structure layer (1) and the second resin-based fiber reinforced wound structure layer (6) are formed by winding Continuous Basalt Fibers (CBF) or glass fibers at different angles.
3. The wound pipe of three-dimensional reinforced resin-based fiber composite material according to claim 1, wherein the sand inclusion layer (3) is resin mortar.
4. The wound pipe made of three-dimensional reinforced resin-based fiber composite material according to claim 1, wherein the first resin fiber mat or woven tape winding layer (2) is a tape layer formed by weaving fibers and having a certain width, the second resin fiber mat tape layer (4) is a fiber mat tape layer formed by laying short basalt fibers or glass fibers, and the first resin fiber mat or woven tape winding layer (2) and the second resin fiber mat tape layer (4) have the same width.
5. A method for manufacturing a wound tube of three-dimensional reinforced resin-based fibre composite material according to any one of claims 1 to 4, comprising the steps of:
s1: preparing a mould, debugging equipment, and preparing resin and fiber materials;
s2: winding a first resin-based fiber reinforced winding structure layer (1);
s3: winding a three-dimensional structure formed by a first resin fiber felt or woven belt winding layer (2), a sand inclusion layer (3), a second resin fiber felt layer (4) and fiber tows (5):
uniformly spreading a mixture obtained by mixing quartz sand or other solid particles with resin by an online wet method on a first resin fiber felt or woven belt winding layer (2) to form a sand inclusion layer (3) on the first resin fiber felt or woven belt winding layer (2) on the basis of the first resin fiber felt or woven belt winding layer (2), synchronously covering a second resin fiber felt belt layer (4), needling resin-quartz sand covered with the felt or woven belt, penetrating the second resin fiber felt belt layer (4), the sand inclusion layer (3) and the first resin fiber felt or woven belt winding layer (2), and forcing partial fibers in the felt belt layer (4) to be downwards to obtain radial fiber tows (5) in the penetrating process, wherein the fiber tows (5) and the resin-quartz sand and the fiber woven belt or woven belt (2) are interpenetrated to form a three-dimensional fiber network structure; the three-dimensional structure strip coil moves forwards at the up-and-down movement pause gap of the acupuncture;
s4: winding a second resin-based fiber reinforced winding structure layer (6);
s5: film covering, infrared curing, finishing, detecting and ex-warehouse.
6. A method according to claim 5, characterized in that the fibre tows (5) are part of the fibres of the second resin fibre mat layer (4) are forced by a hooked needle to a straightened fibre tow (5) passing through the sand inclusion layer (3) and the first resin fibre mat or woven tape winding layer (2) in sequence, the fibre tows (5) are projected at the front end when the needles go up and form a riveted structure to the sand inclusion layer (3) on the lower surface of the first resin fibre mat or woven tape winding layer (2) when being rolled, and the fibre tows (5) are perpendicular to the first resin fibre mat or woven tape layer (2) and the second resin fibre mat layer (4).
7. The method of claim 5, wherein the three-dimensional staple fibers in the second layer (4) of the resin fiber mat are moved with the barbs on the needles to a needle actuation position during the needling.
8. The method according to claim 5, characterized in that, before step S1, the fibers of the first resin fiber mat layer (2) and/or the second resin fiber mat layer (4) are surface-coated with corresponding sizing agent slurry prepared by using epoxy type emulsion and aqueous polyurethane emulsion as main film forming agents and combining with matched auxiliary agents.
9. A method according to any one of claims 5 to 8, wherein 5 to 10% of the fibres in the second resin fibre mat layer (4) participate in the penetration and the fibre ends penetrated by the penetrating fibre bundles (5) through the first resin fibre mat layer (2) are lodged between the first resin-based fibre-reinforced winding structure layer (1) and the first resin fibre mat layer (2).
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| CN202111217799.6A CN113958779A (en) | 2021-10-19 | 2021-10-19 | Three-dimensional reinforced resin-based fiber composite material winding pipe and manufacturing method thereof |
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| CN202111217799.6A CN113958779A (en) | 2021-10-19 | 2021-10-19 | Three-dimensional reinforced resin-based fiber composite material winding pipe and manufacturing method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115139500A (en) * | 2022-06-07 | 2022-10-04 | 北京工业大学 | Fiber reinforced composite material automobile plate spring and preparation method thereof |
Citations (9)
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