WO2022134481A1 - 一种宽幅纤维网增强塑料叠层复合片材 - Google Patents

一种宽幅纤维网增强塑料叠层复合片材 Download PDF

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WO2022134481A1
WO2022134481A1 PCT/CN2021/098087 CN2021098087W WO2022134481A1 WO 2022134481 A1 WO2022134481 A1 WO 2022134481A1 CN 2021098087 W CN2021098087 W CN 2021098087W WO 2022134481 A1 WO2022134481 A1 WO 2022134481A1
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sheet
longitudinal
laminated composite
transverse
width
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PCT/CN2021/098087
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English (en)
French (fr)
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赵培翔
赵炳仁
王浩
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赵培翔
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • B32B1/08—Tubular products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/02—Layer formed of wires, e.g. mesh
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/085—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/045—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/103—Metal fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/106—Carbon fibres, e.g. graphite fibres

Definitions

  • the invention relates to the technical field of thermoplastic fiber-reinforced plastic composite sheets, in particular to a wide-width fiber mesh-reinforced plastic laminated composite sheet used for segmented manufacturing of super-large diameter polyethylene pipes with flared ends.
  • thermoplastic glass fiber tape (or sheet).
  • the width specification of thermoplastic glass fiber tape is generally between 500 mm and 1000 mm, which we call narrow width.
  • Thermoplastic fiberglass tape The width of the commonly used thermoplastic glass fiber tape is about 600 mm, and the thickness of the manufactured thermoplastic glass fiber tape is between 0.15 mm and 0.4 mm according to the diameter of the glass fiber.
  • This sheet is mainly used for the manufacture of fiber-reinforced plastic pipes, and the width is cut into narrower (usually 50-160 mm) thermoplastic glass fiber tapes.
  • the unidirectional thermoplastic glass fiber tape has continuous glass fibers evenly distributed in parallel in the length direction, and the angle between the continuous glass fiber and the longitudinal direction of the longitudinal tape is zero degrees. It is mainly used in the manufacture of spirally wound polyethylene reinforced pressure pipes.
  • FIG. 1 shows a common fiber-reinforced plastic pipe, including an inner pipe 01 , a glass fiber reinforced layer 02 covering the outer side of the inner pipe 01 , and a plastic layer 03 covering the outer side of the glass fiber reinforced layer 02 .
  • the above-mentioned glass fiber reinforced layer is made of zero-degree glass fiber tapes wound in multiple layers on the outside of the inner tube 01 in a positive and negative way until the target thickness is reached, so as to meet the compressive performance requirements of the pipeline.
  • the traditional production method is that after the inner tube 01 is produced, use the cut zero-degree glass fiber tape, along the axial direction of the inner tube 01, spirally wind the outer side of the inner tube 01 in multiple layers, and heat and melt during winding. , so that the multi-layer thermoplastic glass fiber tapes are tightly fused together to form the thermoplastic glass fiber reinforced layer 02.
  • This traditional production method is only suitable for the production of fiber-reinforced plastic pipes with small diameters (the inner diameter of the inner pipe is generally 20-630 mm), and if you want to produce large-diameter fiber-reinforced plastic pipes (the inner diameter of the inner pipe is 1000-6000mm) ), this single-piece spiral forward and reverse winding method has low efficiency and high energy consumption, and cannot produce large-diameter fiber-reinforced plastic pipes with sockets.
  • the inventor proposed a wide-width glass fiber mesh reinforced plastic laminated composite sheet with only transverse continuous fibers on the side, and changed the winding method of the sheet on the inner tube, so that large-diameter fibers can be produced in sections.
  • the efficiency of reinforced plastic pipes is increased by more than 10 times, and the energy consumption is reduced by several times.
  • the side part only contains transverse continuous fibers and does not contain longitudinal continuous fibers. It can produce fiber reinforced plastic pipes with flaring, which makes it possible to manufacture large diameter fiber reinforced plastics in sections. Rapid production of pipes is possible.
  • the technical problem to be solved by the present invention is to overcome the unidirectional zero-degree glass fiber tape in the prior art, which can only wrap the inner tube in a spiral positive and negative way, resulting in low production efficiency, high energy consumption and inability to produce tape bearing
  • the defects of large-diameter fiber reinforced plastic pipes with sockets so as to propose a method that can change the winding method of thermoplastic glass fiber sheets on the inner pipe, thereby improving the winding efficiency and reducing energy consumption, and can produce large-diameter fiber reinforced plastics with sockets and sockets.
  • the present invention provides a wide-width fiber web reinforced plastic laminated composite sheet, comprising a wide-width longitudinal sheet composite layer and a transverse sheet composite layer, the wide-width longitudinal sheet composite layer and the transverse sheet
  • the composite layer is stacked with at least two layers in a 90-degree staggered, superimposed and integrated manner to form a stacked composite sheet;
  • the wide-width longitudinal sheet composite layer has a longitudinal main body portion and longitudinal side edge portions located on one or both sides of the longitudinal main body portion;
  • the longitudinal main body portion includes thermoplastic sheets and uniformly distributed on the thermoplastic sheets.
  • the longitudinally continuous fibers in the inner, the extending direction of the longitudinally continuous fibers is consistent with the length direction of the laminated composite sheet;
  • the longitudinal side portion is a plastic sheet that does not contain the longitudinally continuous fibers;
  • the transverse sheet composite layer superimposed and fused with the wide longitudinal sheet composite layer, includes a thermoplastic sheet and the transverse continuous fibers uniformly distributed in the thermoplastic sheet, and the extending direction of the transverse continuous fibers Consistent with the width direction of the laminated composite sheet;
  • the length of the transverse sheet composite layer is substantially the same as the width of the wide longitudinal sheet composite layer;
  • the longitudinal body portion is laminated and fused with the transverse sheet composite layer to form a laminated composite sheet mesh body portion;
  • the longitudinal side portions are laminated and fused with the transverse sheet composite layer to form a laminated composite sheet side portion containing only transverse continuous fibers.
  • the width of the side portion of the laminated composite sheet accounts for the width of the laminated composite sheet. 5-15% of;
  • the width of any one of the side portions of the laminated composite sheet accounts for 5% of the width of the laminated composite sheet. -15%.
  • the width of the laminated composite sheet is 2-30 meters.
  • the longitudinal continuous fibers and/or the transverse continuous fibers are one of inorganic fibers such as glass fibers, basalt fibers, carbon fibers, and metal fibers.
  • the thermoplastic sheet is a polyolefin plastic such as polyethylene or polypropylene.
  • the wide-width fiber web reinforced plastic laminated composite sheet of the present invention includes a wide-width longitudinal sheet composite layer and a transverse sheet composite layer, and the wide-width longitudinal sheet composite layer and the transverse sheet composite layer are staggered and fused at 90 degrees. At least two layers are laminated and fused in one piece to form a laminated composite sheet.
  • the wide-width longitudinal sheet composite layer includes a longitudinal main body portion and longitudinal side edge portions located on one or both sides of the longitudinal main body portion, and the longitudinal main body portion includes a thermoplastic sheet and the longitudinal Continuous fibers, the longitudinal continuous fibers extend along the length of the laminated composite sheet; the longitudinal side parts are plastic sheets that do not contain longitudinal continuous fibers; the transverse sheet composite layer is superimposed and fused with the wide longitudinal sheet composite layer, including thermoplastic The sheet and the transverse continuous fibers evenly distributed in the thermoplastic sheet, the extension direction of the transverse continuous fiber is consistent with the width direction of the laminated composite sheet; the wide longitudinal sheet composite layer and the transverse sheet composite layer are superimposed and fused at 90 degrees At the same time, along the length direction of the transverse continuous fibers, the length of the transverse sheet composite layer is substantially the same as the width of the wide longitudinal sheet composite layer.
  • the wide-width fiber web-reinforced plastic laminated composite sheet formed by lamination and fusion of the wide-width longitudinal sheet composite layer and the transverse sheet composite layer includes a web-shaped main body portion of the laminated composite sheet and side edges of the laminated composite sheet.
  • the longitudinal body portion and the transverse sheet composite layer are laminated and fused to form a laminated composite sheet mesh body portion, and the longitudinal side portion and the transverse sheet composite layer are laminated and fused to form a laminated composite sheet side portion.
  • the web-like main part of the laminated composite sheet includes a composite layer of plastic and criss-crossed longitudinal continuous fibers and transverse continuous fibers; the side parts of the laminated composite sheet include plastic and transverse continuous fibers. composite layer.
  • the wide-width fiber web-reinforced plastic laminated composite sheet of the present invention is especially suitable for the manufacture of large-diameter fiber-reinforced plastic pipes with external flaring.
  • the mesh-shaped main part of the laminated composite sheet is hot-melt wrapped and wrapped.
  • the side part of the laminated composite sheet is hot-melt wound and wrapped on the outer flared part of the pipe;
  • the wide-width fiber web reinforced plastic laminated composite sheet of the present invention is hot-melt wound on After the pipe is installed, the longitudinal continuous fibers are wound and distributed around the circumference of the pipe, and the transverse continuous fibers are evenly distributed along the axial direction of the pipe.
  • the wide-width fiber web reinforced plastic laminated composite sheet of the present invention has a relatively wide width, and can be made into a width of 2-30 meters (that is, the width of the wide-width longitudinal sheet composite layer, that is, the longitudinal main part and the longitudinal side part) the total width), directly wrapped around the outer wall of the plastic pipe with flaring produced in fixed length, wherein the width of the main part of the laminated composite sheet mesh is the same as the length of the part that is consistent with the outer diameter of the plastic pipe; the laminated composite sheet
  • the width of the side edge portions of the sheet is generally greater than the length of the outer flare of the plastic pipe.
  • the wide-width fiber web reinforced plastic laminated composite sheet of the present invention has a faster production speed than the traditional use of zero-degree glass fiber tape spiral forward and reverse staggered winding, which is more than 10 times the speed;
  • the mesh reinforced plastic laminated composite sheet can solve the problem of the lateral continuous fibers at the outer flared position being wound along the axial direction.
  • the transverse continuous fibers can change with the outer wall of the outer flaring, and finally can be evenly wrapped on the outer wall of the outer flaring.
  • Figure 1 is a cross-sectional view of a fiber reinforced plastic pipe in the prior art.
  • Fig. 2 is a cross-sectional structure view of the double-layer fiber web reinforced plastic laminated composite sheet with one side edge of the present invention in a roll.
  • FIG. 3 is a plan view of FIG. 2 .
  • Fig. 4 is a cross-sectional structure view of a wide longitudinal sheet composite layer with one side in a roll.
  • FIG. 5 is a plan view of FIG. 4 .
  • Figure 6 is a front view of the transverse sheet composite layer.
  • Figure 7 is a front view of a double-sided wide longitudinal sheet composite layer.
  • FIG. 8 is a front view of the double-sided fiber web reinforced plastic laminated composite sheet of the present invention.
  • This embodiment provides a wide-width fiber web reinforced plastic laminated composite sheet, as shown in Figures 2, 3, 4, 5, and 6, including a wide-width longitudinal sheet composite layer 1 and a transverse sheet composite layer 2, so The wide-width longitudinal sheet composite layer 1 and the transverse sheet composite layer 2 are laminated at least two layers in a 90-degree staggered, superimposed and integrated manner to form a laminated composite sheet.
  • This embodiment provides a single-sided double-layer fiber mesh reinforced plastic laminated composite sheet, as shown in Figure 2-3, which consists of a wide longitudinal sheet composite layer 1 and a transverse sheet composite layer 2 compound; of which,
  • the wide-width longitudinal sheet composite layer 1 has a longitudinal body portion 12 and a longitudinal side portion 13 located on one side of the longitudinal body portion 12.
  • the longitudinal body portion 12 includes a thermoplastic sheet and a longitudinal side edge portion 13.
  • the longitudinal continuous fibers 11 are uniformly distributed in the thermoplastic sheet, and the extending direction of the longitudinal continuous fibers 11 is consistent with the length direction of the laminated composite sheet;
  • the transverse sheet composite layer 2 as shown in FIG. 6, is used for 90-degree overlapping and fusion with the wide longitudinal sheet composite layer, including a thermoplastic sheet and the transverse sheet uniformly distributed in the thermoplastic sheet.
  • the extending direction of the transverse continuous fibers 21 is the same as the width direction of the laminated composite sheet.
  • the transverse sheet composite layer 2 is staggered and fused at 90 degrees, along the length direction of the transverse continuous fibers 21, the transverse direction
  • the length of the sheet composite layer 2 is substantially the same as the width of the wide longitudinal sheet composite layer 1 .
  • the longitudinal body portion 12 is laminated and fused with the transverse sheet composite layer 2 to form a laminated composite sheet mesh main body portion 3; the longitudinal side portion 13 is laminated and fused with the transverse sheet composite layer 2 to form a laminated layer Composite sheet side portion 4.
  • the method of superposition fusion is hot pressing fusion.
  • the longitudinally continuous fibers 11 and/or the transversely continuous fibers 21 are one of inorganic fibers such as glass fibers, basalt fibers, carbon fibers, and metal fibers; in this embodiment, the longitudinally continuous fibers 11 and the transversely continuous fibers The fibers 21 are all glass fibers.
  • thermoplastic sheet is a polyolefin plastic such as polyethylene or polypropylene; in this embodiment, the thermoplastic sheet is a polyethylene plastic.
  • the longitudinal side portions 13 can also be distributed on both sides of the longitudinal main body portion 12 to form a wide longitudinal sheet composite layer with double sides (as shown in FIG. 7 ); After the wide-width longitudinal sheet composite layer and the transverse sheet composite layer are laminated and composited, a double-layer fiber web reinforced plastic laminated composite sheet with double sides is formed (as shown in Figure 8).
  • the longitudinal side portion 13 may contain other forms of fibers.
  • the transverse continuous fibers 21 uniformly distributed in the transverse sheet composite layer 2 become the pipes of the pipe.
  • the longitudinal continuous fibers 11 of the wide longitudinal sheet composite layer 1 become pipes after the pipe is wound and formed Circumferential fibers, the longitudinal continuous fibers 11 perpendicularly intersecting with the transverse continuous fibers extending along the axial direction of the pipeline can withstand the radial tension of the pipeline, so that the wrapped pipeline has excellent radial-axial bidirectional mechanical properties;
  • the pressure pipe made of sheet material bears high internal pressure, the radial and axial structural forces of the pipe are uniform, the pipe has excellent mechanical properties, the strength and rigidity of the product are significantly improved, and the service life is long.
  • the wide-width fiber web-reinforced plastic laminated composite sheet of this embodiment is especially suitable for the manufacture of large-diameter thermoplastic fiber-reinforced plastic pipes with external flaring. Melt-wrap on the part with the same outer diameter of the pipe, hot-melt and wrap the side part 4 of the laminated composite sheet on the outer flared end of the pipe, after the laminated composite sheet is heated and softened, the side edge of the laminated composite sheet
  • the portion 4 is not radially bound by the longitudinal continuous fibers 11, and can be wound around the flared ends of the pipes with varying outer diameters, and the transverse continuous fibers 21 are uniformly distributed on the flared ends of the pipes with varying diameters in the axial direction.
  • the laminated composite sheet structure of this embodiment for the production of large-diameter pipes, it can be processed in sections, and a socket and socket design is adopted between two adjacent sections.
  • the width of the mesh-shaped main body part 3 is matched, the mesh-shaped main body part 3 of the laminated composite sheet material is wound around the pipe pressure-bearing main body part with a constant outer diameter, and the side edge part 4 of the laminated composite sheet material is wound around the outer diameter of which changes.
  • the flared end and the outer layer of the pipeline need to continue to compound and wrap the corresponding structural layer, and connect through the socket and socket to complete the installation of long-length large-diameter pressure pipelines.
  • the wide-width fiber mesh-reinforced plastic laminated composite sheet in this embodiment has a wide width, which can be made into a width of 2-30 meters, and is directly wrapped around the outer wall of a plastic pipe with a flared end produced in a fixed length.
  • the width of the laminated composite sheet mesh body part 3 is the same as the length of the outer diameter of the polyethylene pipe; the width of the laminated composite sheet side part 4 is generally greater than the length of the outer flare of the polyethylene pipe.
  • the laminated composite sheet of this embodiment is directly and continuously wrapped in a whole piece, thereby greatly improving the winding efficiency and reducing the energy consumption, making the large-diameter fiber reinforced plastic pipes more efficient.
  • Industrialized production is possible, and the wrapping speed is 10 times or more than the original wrapping wrapping speed; the wide-width fiber web reinforced plastic laminated composite sheet of this embodiment can solve the problem of the unconstrained uniform distribution of continuous axial fibers at the flared end.
  • the transverse continuous fibers 21 can change with the outer wall of the outer flaring, and finally are uniformly axially arranged and wrapped on the outer wall of the flaring end.
  • the wide longitudinal sheet composite layer 1 and the transverse sheet composite layer 2 can be stacked in multiple layers, such as 3 layers, 4 layers, 5 layers, 6 layers, 7 layers, 8 layers, 9 layers, and 10 layers. ...50 layers, etc., the uppermost layer can be a wide-width longitudinal sheet composite layer 1, or a transverse sheet composite layer 2, and the bottom layer can be a wide-width longitudinal sheet composite layer 1, or It can be the transverse sheet composite layer 2 .
  • fiber-reinforced plastic pipes referred to in the present invention refer to polyolefin plastic pipes such as polyethylene and polypropylene.

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  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)

Abstract

本发明提供的宽幅纤维网增强塑料叠层复合片材，包括宽幅纵向片材复合层和横向片材复合层，二者以交错叠加融合为一体的方式层叠有至少两层；宽幅纵向片材复合层具有纵向主体部分和纵向侧边部分，纵向主体部分具有若干均匀分布的纵向连续纤维，延伸方向与叠层复合片材的长度方向一致；纵向侧边部分为不包含纵向连续纤维的热塑性塑料片材；横向片材复合层具有横向连续纤维，延伸方向与叠层复合片材的宽度方向一致。本发明叠层复合片材的宽度可以为2-30米，制造大口径管道时，直接整片连续热熔缠绕包覆，生产效率提高10倍以上；只含横向连续纤维的侧边部分可以随扩口直径变化，形成变径扩口端，使大口径纤维增强塑料管道的工业化生产成为可能。

Description

一种宽幅纤维网增强塑料叠层复合片材 技术领域
本发明涉及热塑性纤维增强塑料复合片材技术领域，具体涉及一种用于分段制造带扩口端的超大口径聚乙烯管道的宽幅纤维网增强塑料叠层复合片材。
背景技术
目前，国内外生产的热塑性连续玻璃纤维增强聚乙烯片材，称为热塑性玻纤带(或片)，热塑性玻纤带的宽度规格一般在500毫米至1000毫米之间，我们称之为窄幅热塑性玻纤带。常用规格的热塑性玻纤带宽度为600毫米左右，根据玻璃纤维直径的不同，所制造的热塑性玻纤带厚度在0.15毫米至0.4毫米之间。这种片材主要用于纤维增强塑料管道的制造，宽度要裁切成更窄(一般是50-160毫米)的热塑性玻纤带来使用。该单向热塑性玻纤带，长度方向均匀平行分布有连续玻璃纤维，连续玻纤与纵向带长度方向的角度为零度，我们称这种单向热塑性玻纤带叫零度玻纤带，只承受纵向拉力，不承受横向拉力，主要应用在螺旋正反向缠绕聚乙烯增强压力管道的制造。
图1示出了一种常见的纤维增强塑料管道，包括内管01，包覆在内管01外侧的玻纤增强层02，以及包覆在玻纤增强层02外侧的塑料层03。上述的玻纤增强层是使用零度玻纤带在内管01外侧正反交错缠绕多层，直至达到目标厚度，从而满足管道的抗压性能要求。
传统的生产方式是，在内管01生产出来后，使用裁切好的零度玻纤带，沿内管01轴向，在内管01的外侧螺旋正反交错缠绕多层，在缠绕时加热熔融，使多层热塑性玻纤带紧紧融合在一起，从而形成热塑性玻纤增强层02。传统的这种生产方式，只适用于生产小管径的纤维增强塑料管道(内管内径一般在20-630毫米)，而如果要生产大口径的纤维增强塑料管道(内管内径为1000-6000mm)，这种单片螺旋正反缠绕方式效率低，而且耗能大，无法生产带承插口的大口径纤维增强塑料管道。
发明人经过研究，提出了侧边只含横向连续纤维的一种宽幅玻纤网增强塑料叠层复合片材，并改变了片材在内管上的缠绕方式，使分段生产大口径纤维增强塑料管道效率提高10倍以上，降低耗能数倍，侧边部分只含横向连续纤维不含纵向连续纤维，可以生产带扩口的纤维增强塑料管道，进而使得分段制造大口径纤维增强塑料管道的快速生产成为可能。
发明内容
因此，本发明要解决的技术问题在于克服现有技术中的单向零度玻纤带，只能采用螺旋正反缠绕的方式包绕内管，导致生产效率低、耗能高以及无法生产带承插口大口径纤维增强塑料管道的缺陷，从而提出一种可以改变热塑性玻纤片材在内管上的缠绕方式，进而能够提升缠绕效率、降低耗能，并可以生产带承插口大口径纤维增强塑料管道的宽幅玻纤网增强塑料叠层复合片材。
为此，本发明提供一种宽幅纤维网增强塑料叠层复合片材，包括宽幅纵向片材复合层和横向片材复合层，所述宽幅纵向片材复合层和所述横向片材复合层以90度交错叠加融合为一体的方式层叠有至少两层，以形成叠层复合片材；
所述宽幅纵向片材复合层，具有纵向主体部分和位于所述纵向主体部分一侧或两侧的纵向侧边部分；所述纵向主体部分包括热塑性片材和均布在所述热塑性片材内的所述纵向连续纤维，所述纵向连续纤维的延伸方向与所述叠层复合片材的长度方向一致；所述纵向侧边部分为不包含所述纵向连续纤维的塑料片材；
所述横向片材复合层，与所述宽幅纵向片材复合层叠加融合，包括热塑性片材和均布在所述热塑性片材内的所述横向连续纤维，所述横向连续纤维的延伸方向与所述叠层复合片材的宽度方向一致；
沿所述横向连续纤维的长度方向，所述横向片材复合层的长度与所述宽幅纵向片材复合层的宽度基本相同；
所述纵向主体部分与所述横向片材复合层层叠融合形成叠层复合片材网状主体部分；
所述纵向侧边部分与所述横向片材复合层层叠融合形成只含横向连续纤维的叠层复合片材侧边部分。
作为一种优选方案，所述叠层复合片材的一侧具有所述叠层复合片材侧边部分时，所述叠层复合片材侧边部分的宽度占所述叠层复合片材宽度的5-15％；
所述叠层复合片材的两侧均具有所述叠层复合片材侧边部分时，任意一个所述叠层复合片材侧边部分的宽度均占所述叠层复合片材宽度的5-15％。
作为一种优选方案，所述叠层复合片材的宽度为2-30米。
作为一种优选方案，所述纵向连续纤维和/或所述横向连续纤维为玻璃纤维、玄武岩纤维、碳纤维、金属纤维等无机纤维中的一种。
作为一种优选方案，所述热塑性片材为聚乙烯或聚丙烯等聚烯烃类塑料。
本发明提供的技术方案，具有以下优点：
本发明的宽幅纤维网增强塑料叠层复合片材，包括宽幅纵向片材复合层和横向片材 复合层，宽幅纵向片材复合层和横向片材复合层以90度交错叠加融合为一体的方式层叠融合有至少两层，从而形成叠层复合片材。
其中，宽幅纵向片材复合层包括纵向主体部分和位于纵向主体部分一侧或两侧的纵向侧边部分，纵向主体部分包括热塑性片材和均布在所述热塑性片材内的所述纵向连续纤维，纵向连续纤维沿叠层复合片材的长度方向延伸；纵向侧边部分为不包含纵向连续纤维的塑料片材；横向片材复合层与宽幅纵向片材复合层叠加融合，包括热塑性片材和均布在热塑性片材内的横向连续纤维，横向连续纤维的延伸方向与叠层复合片材的宽度方向一致；宽幅纵向片材复合层和横向片材复合层以90度叠加融合时，沿横向连续纤维的长度方向，横向片材复合层的长度与宽幅纵向片材复合层的宽度基本相同。
也即，宽幅纵向片材复合层和横向片材复合层层叠融合形成的宽幅纤维网增强塑料叠层复合片材，包括有叠层复合片材网状主体部分和层叠复合片材侧边部分，其中纵向主体部分和横向片材复合层层叠融合形成叠层复合片材网状主体部分，纵向侧边部分和横向片材复合层层叠融合形成叠层复合片材侧边部分。
充分层叠融合后，从外表上看，叠层复合片材网状主体部分包括塑料和纵横交错的纵向连续纤维和横向连续纤维的复合层；层叠复合片材侧边部分包括塑料和横向连续纤维的复合层。
本发明的宽幅纤维网增强塑料叠层复合片材，尤其适合带有外扩口的大口径纤维增强塑料管道的制造，具体生产时，将叠层复合片材网状主体部分热熔缠绕包裹在管道的外径一致的部分上，将叠层复合片材侧边部分热熔缠绕包裹在管道的外扩口部分上；本发明的宽幅纤维网增强塑料叠层复合片材热熔缠绕在管道上后，纵向连续纤维绕管道的周向缠绕分布，横向连续纤维沿管道的轴向均匀分布。
本发明的宽幅纤维网增强塑料叠层复合片材，幅宽较宽，可以做成2-30米宽(即宽幅纵向片材复合层的宽度，也即纵向主体部分和纵向侧边部分的总宽度)，直接缠绕包覆在定长生产的带扩口的塑料管道外壁上，其中叠层复合片材网状主体部分的宽度与塑料管道的外径一致部分的长度一致；叠层复合片材侧边部分的宽度一般大于塑料管道的外扩口的长度。
本发明的宽幅纤维网增强塑料叠层复合片材，与传统采用零度玻纤带螺旋正反向交错缠绕相比，生产速度更快，是其速度的10倍以上；本发明的宽幅纤维网增强塑料叠层复合片材，可以解决外扩口位置的横向连续纤维延轴向随型缠绕问题，即将本发明的宽幅纤维网增强塑料叠层复合片材的叠层复合侧边部分热熔缠绕到塑料管道外扩口外壁上时，横向连续纤维可以随外扩口的外壁变化，并最终能够均匀包裹在外扩口的外壁 上。
附图说明
为了更清楚地说明现有技术或本发明具体实施方式中的技术方案，下面对现有技术或具体实施方式描述中所使用的附图作简单介绍。
图1是现有技术中纤维增强塑料管道的横截面图。
图2是本发明单侧边的双层纤维网增强塑料叠层复合片材成卷断面结构图。
图3是图2的俯视图。
图4是单侧边的宽幅纵向片材复合层成卷断面结构图。
图5是图4的俯视图。
图6是横向片材复合层的主视图。
图7是双侧边的宽幅纵向片材复合层的主视图。
图8是本发明双侧边的双层纤维网增强塑料叠层复合片材的主视图。
附图标记：01、内管；02、玻纤增强层；03、塑料层；1、宽幅纵向片材复合层；11、纵向连续纤维；12、纵向主体部分；13、纵向侧边部分；2、横向片材复合层；21、横向连续纤维；3、叠层复合片材网状主体部分；4、叠层复合片材侧边部分。
具体实施方式
下面结合附图对本发明的技术方案进行详细描述。
实施例1
本实施例提供一种宽幅纤维网增强塑料叠层复合片材，如图2、3、4、5、6所示，包括宽幅纵向片材复合层1和横向片材复合层2，所述宽幅纵向片材复合层1和所述横向片材复合层2以90度交错叠加融合为一体的方式层叠至少两层以形成叠层复合片材。
本实施例提供一种单侧边的双层纤维网增强塑料叠层复合片材，如图2-3所示，由一层宽幅纵向片材复合层1和一层横向片材复合层2复合而成；其中，
所述宽幅纵向片材复合层1，如图5所示，具有纵向主体部分12和位于所述纵向主体部分12一侧的纵向侧边部分13，所述纵向主体部分12包括热塑性片材和均布在所述热塑性片材内的所述纵向连续纤维11，所述纵向连续纤维11的延伸方向与所述叠层复合片材的长度方向一致；所述纵向侧边部分13为不包含所述纵向连续纤维11的塑料片材；
所述横向片材复合层2，如图6所示，用于与所述宽幅纵向片材复合层90度叠加融合，包括热塑性片材和均布在所述热塑性片材内的所述横向连续纤维21，所述横向连续纤维21的延伸方向与所述叠层复合片材的宽度方向一致。
如图2-3所示，在所述宽幅纵向片材复合层1和所述横向片材复合层2以90度交错叠加融合时，沿所述横向连续纤维21的长度方向，所述横向片材复合层2的长度与所述宽幅纵向片材复合层1的宽度基本相同。
所述纵向主体部分12与所述横向片材复合层2层叠融合形成叠层复合片材网状主体部分3；所述纵向侧边部分13与所述横向片材复合层2层叠融合形成叠层复合片材侧边部分4。
本实施例中，叠加融合的方式为热压融合。
所述纵向连续纤维11和/或所述横向连续纤维21为玻璃纤维、玄武岩纤维、碳纤维、金属纤维等无机纤维中的一种；本实施例中，所述纵向连续纤维11和所述横向连续纤维21均为玻璃纤维。
所述热塑性片材为聚乙烯或聚丙烯等聚烯烃类塑料；本实施例中，所述热塑性片材为聚乙烯塑料。
作为一种变形设计方案，所述纵向侧边部分13也可以分布在纵向主体部分12的两侧，形成双侧边的宽幅纵向片材复合层(如图7所示)；上述双侧边的宽幅纵向片材复合层与横向片材复合层层叠复合后，形成双侧边的双层纤维网增强塑料叠层复合片材(如图8所示)。
作为一种优选设计方案所述纵向侧边部分13可以包含其他形式的纤维。
本实施例的宽幅纤维网增强塑料叠层复合片材在连续缠绕包覆生产大口径热塑性纤维增强塑料管道时，使均布于横向片材复合层2的横向连续纤维21变成了管道的轴向平行纤维，整片包覆管道，与管道轴向平行的连续纤维可以承受管材的轴向拉力；宽幅纵向片材复合层1的纵向连续纤维11，在管道缠绕成型后变成了管道的周向纤维，与沿管道轴向延伸的横向连续纤维垂直相交的纵向连续纤维11可以承受管道的径向拉力，从而使包裹后的管道具有优良的径轴双向力学性能；利用该叠层复合片材制成的压力管道内部承受压力高，管道径向和轴向结构力均匀，管道具有优良的力学性能，制品强度、刚度得到显著提高，使用寿命长。
本实施例的宽幅纤维网增强塑料叠层复合片材，尤其适合带有外扩口的大口径热塑性纤维增强塑料管道的制造，具体生产时，将叠层复合片材网状主体部分3热熔缠绕在管道的外径一致的部分上，将叠层复合片材侧边部分4热熔缠绕在管道的外扩口端，叠层复合片材加热变软后，叠层复合片材侧边部分4没有纵向连续纤维11的径向束缚，可以缠绕外径变化的管材扩口端，并使横向连续纤维21沿轴向均布在直径变化的管材扩口端。
借助本实施例的叠层复合片材结构，对于大口径的管道生产，可以分段加工，相邻两段之间采用承口插口设计，每一段管道外径一致部分的长度与叠层复合片材网状主体部分3的宽度相匹配，将叠层复合片材网状主体部分3缠绕在外径不变的管道承压主体部分，将叠层复合片材侧边部分4缠绕在外径发生变化的扩口端部分，分段加工完成后，扩口端及管道外层需继续复合缠绕相应结构层，通过承口插口连接，完成较长长度的大口径压力管道的安装。
本实施例的宽幅纤维网增强塑料叠层复合片材，幅宽较宽，可以做成2-30米宽，直接缠绕包覆在定长生产的带扩口端的塑料管道外壁上，其中叠层复合片材网状主体部分3的宽度与聚乙烯管道的外径一致部分的长度一致；叠层复合片材侧边部分4的宽度一般大于聚乙烯管道的外扩口的长度。
与传统采用零度玻纤带正反交错缠绕不同，本实施例的叠层复合片材采用直接整片连续包覆，从而大大提升了缠绕效率，降低了能耗，使得大口径纤维增强塑料管道的工业化生产成为可能，包裹速度是原有缠绕式包裹速度的10倍或以上；本实施例的宽幅纤维网增强塑料叠层复合片材，可以解决扩口端均布连续轴向纤维的无束缚缠绕问题，将叠层复合片材侧边部分4缠绕到管道外扩口外壁上时，横向连续纤维21可以随外扩口的外壁变化，并最终均匀轴向排列包裹在扩口端的外壁上。
本实施例中，宽幅纵向片材复合层1和横向片材复合层2可以交错叠加多层，如3层、4层、5层、6层、7层、8层、9层、10层……50层等等，最上面的一层可以是宽幅纵向片材复合层1，也可以是横向片材复合层2，最下面的一层可以是宽幅纵向片材复合层1，也可以是横向片材复合层2。
需要指出的是，本发明所称的纤维增强塑料管道，是指聚乙烯、聚丙烯等聚烯烃类塑料管道。
显然，上述实施例仅仅是为清楚地说明所作的举例，而并非对实施方式的限定。对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。而由此所引伸出的显而易见的变化或变动仍处于本发明创造的保护范围之中。

Claims (5)

  1. 一种宽幅纤维网增强塑料叠层复合片材，其特征在于：包括宽幅纵向片材复合层(1)和横向片材复合层(2)，所述宽幅纵向片材复合层(1)和所述横向片材复合层(2)以90度交错叠加融合为一体的方式层叠有至少两层，以形成叠层复合片材；
    所述宽幅纵向片材复合层(1)，具有纵向主体部分(12)和位于所述纵向主体部分(12)一侧或两侧的纵向侧边部分(13)；所述纵向主体部分(12)包括热塑性片材和均布在所述热塑性片材内的所述纵向连续纤维(11)，所述纵向连续纤维(11)的延伸方向与所述叠层复合片材的长度方向一致；所述纵向侧边部分(13)为不包含所述纵向连续纤维(11)的塑料片材；
    所述横向片材复合层(2)，与所述宽幅纵向片材复合层(1)叠加融合，包括热塑性片材和均布在所述热塑性片材内的所述横向连续纤维(21)，所述横向连续纤维(21)的延伸方向与所述叠层复合片材的宽度方向一致；
    沿所述横向连续纤维(21)的长度方向，所述横向片材复合层(2)的长度与所述宽幅纵向片材复合层(1)的宽度基本相同；
    所述纵向主体部分(12)与所述横向片材复合层(2)层叠融合形成叠层复合片材网状主体部分(3)；
    所述纵向侧边部分(13)与所述横向片材复合层(2)层叠融合形成只含横向连续纤维(21)的叠层复合片材侧边部分(4)。
  2. 根据权利要求1所述的叠层复合片材，其特征在于：
    所述叠层复合片材的一侧具有所述叠层复合片材侧边部分(4)时，所述叠层复合片材侧边部分(4)的宽度占所述叠层复合片材宽度的5-15％；
    所述叠层复合片材的两侧均具有所述叠层复合片材侧边部分(4)时，任意一个所述叠层复合片材侧边部分(4)的宽度均占所述叠层复合片材宽度的5-15％。
  3. 根据权利要求1或2所述的叠层复合片材，其特征在于：所述叠层复合片材的宽度为2-30米。
  4. 根据权利要求1所述的叠层复合片材，其特征在于：所述纵向连续纤维(11)和/或所述横向连续纤维(21)为玻璃纤维、玄武岩纤维、碳纤维、金属纤维等无机纤维中的一种。
  5. 根据权利要求1所述的叠层复合片材，其特征在于：所述热塑性片材为聚乙烯或聚丙烯等聚烯烃类塑料。
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