CN111550612B - Impact-resistant strain-corrosion-resistant continuous winding glass fiber reinforced plastic composite pipeline and preparation method thereof - Google Patents
Impact-resistant strain-corrosion-resistant continuous winding glass fiber reinforced plastic composite pipeline and preparation method thereof Download PDFInfo
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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
- F16L9/12—Rigid pipes of plastics with or without reinforcement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D23/00—Producing tubular articles
- B29D23/001—Pipes; Pipe joints
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Abstract
The invention discloses an impact-resistant, strain-corrosion-resistant and continuously-wound glass fiber reinforced plastic composite pipeline and a preparation method thereof. According to the impact-resistant strain-corrosion-resistant continuously-wound glass fiber reinforced plastic composite pipeline prepared by the invention, the inner surface layer and the outer surface layer of the elastomer are made of polyurethane or polyurea elastomers, and the breaking elongation is more than 300%.
Description
Technical Field
The invention relates to the technical field of glass fiber reinforced plastic composite pipelines, in particular to an impact-resistant strain-corrosion-resistant continuous winding glass fiber reinforced plastic composite pipeline and a preparation method thereof.
Background
The glass fiber reinforced plastic pipeline is a resin-based composite pipe, has high strength, corrosion resistance, smooth pipe wall and excellent hydraulic performance, and has wide application background in municipal construction of water supply and drainage pipeline engineering and the like.
However, the currently common continuously-wound pipeline adopts m-benzene unsaturated polyester resin or vinyl resin as lining resin, the elongation at break is usually only about 3%, and is at most 5%, and the lining and the outer surface are easy to crack during impact of internal and external hard objects (collision of the pipeline in transportation, installation and hoisting, foreign objects carried by internal media in pipe walking and pipeline running, impact of external backfill materials of the pipeline and other external objects) and hoop bending strain corrosion (such as sulfuric acid and other media), although the glass fiber reinforced plastic structure layer can still well bear internal and external loads, the pipeline fails due to leakage caused by the penetration of internal or external media into the pipe wall, the lightweight high-strength performance of the glass fiber reinforced plastic material cannot be fully exerted, great waste is caused, and poor application recognition such as fear of collision, easy damage and the like is formed for the glass fiber reinforced plastic pipeline, the popularization and the application are influenced.
In addition, the inner surface of the glass fiber reinforced plastic pipeline is molded by unsaturated polyester resin, and residual styrene monomer is contained, so that although the sanitary index of drinking water can be met, people can smell the taste of styrene when entering the pipeline, and the application in some projects is also influenced.
Chinese patent CN104405962B discloses a high-strength glass fiber reinforced plastic pipeline and a production method thereof, belonging to the technical field of glass fiber reinforced plastic pipelines and production methods thereof. The high-strength glass fiber reinforced plastic pipeline is a cylindrical pipe and is characterized by comprising an inner liner layer, an inner structure layer, a middle sand inclusion layer and an outer structure layer, wherein the inner liner layer is formed by soaking and adhering a glass fiber surface felt layer, a glass fiber knitted felt layer and a grid cloth layer sequentially from inside to outside through inner liner resin; the inner structure layer and the outer structure layer are composed of 1 or more layers of circumferential winding layers of glass fiber yarns and 1 or more layers of crossed winding layers of glass fiber yarns, and the circumferential winding layers and the crossed winding layers are arranged at intervals; the middle sand inclusion layer is composed of an upper sand inclusion cloth layer, a lower sand inclusion cloth layer and a sand material which is compressed and sandwiched between the upper sand inclusion cloth layer and the lower sand inclusion cloth layer, and the sand material is formed by mixing quartz sand and sand-binding resin. The internal and external surfaces of the glass fiber reinforced plastic pipeline prepared by the method have low strength and poor toughness, and the use is influenced by cracking, cracks and the like easily under the external impact condition.
Therefore, in order to solve the problems that the inner surface and the outer surface of the glass fiber reinforced plastic pipeline have no cracks and no cracks under the condition of internal and external impact, the leakage failure is avoided, and the strength and the rigidity of the glass fiber reinforced plastic pipeline and the glass fiber reinforced plastic sand inclusion pipeline are fully exerted, the invention provides the impact-resistant, strain-corrosion-resistant and continuously-wound glass fiber reinforced plastic composite pipeline and the preparation method thereof.
Disclosure of Invention
Aiming at the problems, the invention provides an impact-resistant strain-corrosion-resistant continuous winding glass fiber reinforced plastic composite pipeline and a preparation method thereof.
The technical scheme adopted by the invention for solving the problems is as follows: a shock-resistant, strain-resistant and corrosion-resistant continuously-wound glass fiber reinforced plastic composite pipeline is of a seven-layer structure and sequentially comprises an inner surface layer of an elastomer, a transition layer I, a transition layer II, a glass fiber reinforced plastic structure layer, a transition layer II, a transition layer I and an outer surface layer of the elastomer from inside to outside; the thickness ratio of surface layer in elastomer, transition layer I, transition layer II, glass steel structural layer, transition layer II, transition layer I, the elastomer surface layer is 1.0 ~ 1.5: 0.1-0.5: 0.1-0.5: 3.0-60.0: 0.1-0.5: 0.1-0.5: 0 to 1.5.
Further, the inner surface layer and the outer surface layer of the elastomer are made of polyurethane or polyurea.
Further, the transition layer I is formed by mixing polyurethane or polyurea and chopped glass fibers according to a mass ratio of 1.0: 0.2 to 0.4.
Further, the transition layer II is unsaturated polyester resin or vinyl ester resin with amino groups or epoxy resin and chopped glass fibers according to a mass ratio of 1.0: 0.3 to 0.5.
Further, the glass fiber reinforced plastic structure layer is formed by continuous glass fiber, chopped glass fiber, unsaturated polyester resin or epoxy resin and quartz sand according to the mass ratio of 1.0: 0.2-1.0: 0.4-3.0: 0 to 5.0.
According to another object of the present invention, there is provided a method for manufacturing the above-mentioned impact-resistant, strain-corrosion-resistant and continuously-wound glass fiber reinforced plastic composite pipe, which comprises the steps of producing a polyurethane or polyurea elastomer by a continuous winding process, spraying or showering the polyurethane or polyurea elastomer between 1 st and 5 th steel bands in a feeding area to form an inner surface layer of the elastomer, spraying chopped glass fibers in 6 th to 8 th steel bands and pressing the chopped glass fibers with a circular pressing roller to form a transition layer i, wherein uncured elastomer on the outermost layer of the inner surface layer of the elastomer is bonded to the chopped glass fibers, the chopped glass fibers are partially pressed into the elastomer and bonded to the elastomer, and partially exposed to be bonded to a subsequent unsaturated polyester resin or vinyl ester resin or epoxy resin with amino groups, feeding the chopped glass fibers and unsaturated polyester resin or vinyl ester resin or epoxy resin with amino groups in 8 th to 10 th steel bands to form a transition layer ii, and then manufacturing a glass fiber reinforced plastic structure layer according to a conventional method, then putting chopped glass fibers and unsaturated polyester resin or vinyl ester resin or epoxy resin with amino groups in 1-3 steel band regions outside a feeding region of the glass fiber reinforced plastic structure layer, and using a circular compression roller to press and form a transition layer II, so that the chopped glass fibers are partially pressed into the resin and are bonded with the resin, the partially exposed chopped glass fibers are bonded with a subsequent polyurethane or polyurea elastomer, and after the gel of the transition layer II is cured, 1-5 steel band regions are occupied by spraying or showering the polyurethane or polyurea elastomer, wherein the 1 st steel band region forms a transition layer I, and the 2-5 steel band regions form an outer surface layer of the elastomer. The circular pressing roller contacts with the chopped glass fibers by means of self weight, the chopped glass fibers are partially pressed into the resin and are bonded with the resin, and the partially exposed chopped glass fibers are bonded with the subsequent polyurethane or polyurea elastomer.
The invention aims to solve the problem of effective bonding of a polyurethane or polyurea elastomer and a glass fiber reinforced plastic layer, and utilizes the process characteristic of pushing a steel belt to form by a continuous winding process, a chopped glass fiber feeding area is arranged on the outer layer of the inner surface layer of the elastomer, chopped glass fibers are pressed in to form an elastomer chopped glass fiber transition layer, namely a transition layer I, a part of chopped glass fibers in the transition layer I are pressed in the elastomer, a part of chopped glass fibers are exposed, a chopped glass fiber and unsaturated polyester resin or vinyl ester resin or epoxy resin feeding area with amino groups are arranged behind the transition layer I, a chopped glass fiber and unsaturated polyester resin or vinyl ester resin or epoxy resin transition layer with amino groups, namely a transition layer II is formed, thus the inner surface layer of the elastomer is bonded with the glass fiber reinforced plastic structure, besides the bonding of the elastomer and the resin, and glass fibers form a stretching riveting structure between the transition layer I and the transition layer II, the reliability of the bonding is ensured. The elastomer outer surface layer works the same.
The invention has the advantages that:
(1) according to the impact-resistant strain-corrosion-resistant continuously-wound glass fiber reinforced plastic composite pipeline prepared by the invention, the inner surface layer and the outer surface layer of the elastomer are made of polyurethane or polyurea elastomers, and the breaking elongation is more than 300%;
(2) according to the impact-resistant, strain-corrosion-resistant and continuously-wound glass fiber reinforced plastic composite pipeline prepared by the invention, the polyurethane or polyurea elastomer and the chopped glass fiber transition layer I and the chopped glass fiber and the unsaturated polyester resin or the vinyl ester resin or epoxy resin transition layer II with amino groups are arranged, so that the polyurethane or polyurea elastomer and the glass fiber reinforced plastic structure layer are well bonded, and the impact strength and the strain corrosion resistance of the continuously-wound glass fiber reinforced plastic composite pipeline are improved;
(3) the polyurethane or polyurea elastomer selected for the inner surface layer and the outer surface layer of the shock-resistant, strain-corrosion-resistant and continuously-wound glass fiber reinforced plastic composite pipeline elastomer has good cohesiveness, corrosion resistance, water and gas permeability resistance, tensile strength and outstanding toughness, has 100% of solid content, no organic matter volatilization, no toxicity and no pollution, has no residual styrene monomer taste of the traditional glass fiber reinforced plastic pipeline in the pipeline, and can further meet the environmental requirements of drinking water and the like;
(4) the preparation method of the impact-resistant and strain-corrosion-resistant continuous winding glass fiber reinforced plastic composite pipeline is simple, rich in raw material source, low in production cost and suitable for popularization.
Drawings
In order to more clearly illustrate the improvement of the impact-resistant and strain-corrosion-resistant continuously-wound glass fiber reinforced plastic composite pipe prepared by the invention, the following description uses the accompanying drawings to illustrate the structural schematic diagram of the impact-resistant and strain-corrosion-resistant continuously-wound glass fiber reinforced plastic composite pipe prepared by the invention. In the drawings:
FIG. 1: the structural schematic diagram of the impact-resistant strain-corrosion-resistant continuous winding glass fiber reinforced plastic composite pipeline prepared by the invention;
FIG. 2: the structure of the impact-resistant strain-corrosion-resistant continuous winding glass fiber reinforced plastic composite pipeline prepared by the invention is partially schematic;
the reference numbers in the drawings: 1-elastomer outer surface layer, 2-transition layer I, 3-transition layer II, 4-glass fiber reinforced plastic structure layer, 5-transition layer II, 6-transition layer I and 7-elastomer inner surface layer.
Detailed Description
The following detailed description of embodiments of the invention, but the invention can be practiced in many different ways, as defined and covered by the claims.
Example 1
Impact-resistant strain-corrosion-resistant continuous winding glass fiber reinforced plastic composite pipeline
The elastic body is of a seven-layer structure and sequentially comprises an inner surface layer of the elastic body, a transition layer I, a transition layer II, a glass fiber reinforced plastic structure layer, a transition layer II, a transition layer I and an outer surface layer of the elastic body from inside to outside; the thickness ratio of superficial layer, transition layer I, transition layer II, glass steel structural layer, transition layer II, transition layer I in the elastomer is 1.0: 0.1: 0.1: 3.0: 0.1: 0.1; wherein, the inner surface layer of the elastomer is polyurethane; the transition layer I is prepared from polyurethane and chopped glass fibers according to a mass ratio of 1.0: 0.2; the transition layer II is formed by mixing unsaturated polyester resin and chopped glass fiber according to a mass ratio of 1.0: 0.3; the glass fiber reinforced plastic structure layer is formed by mixing continuous glass fiber, chopped glass fiber and unsaturated polyester resin according to a mass ratio of 1.0: 0.2: 0.4.
The preparation method comprises the following steps:
the continuous winding process is adopted for production, the polyurethane elastomer is sprayed or sprinkled in the 1 st to 5 th steel belt sections of the feeding area to manufacture the inner surface layer of the elastomer, putting polyurethane and spraying chopped glass fiber in the 6 th to 8 th steel belt areas, and pressing by using a circular pressing roller to manufacture a transition layer I, putting chopped glass fiber and unsaturated polyester resin into the 8 th to 10 th steel belt area to manufacture a transition layer II, manufacturing a glass fiber reinforced plastic structure layer according to a conventional method, then throwing chopped glass fiber and unsaturated polyester resin into 1-3 steel band areas outside the feeding area of the glass fiber reinforced plastic structure layer, using a round press roll to press and form a transition layer II, and spraying or sprinkling polyurethane elastomer in 1-5 steel band areas after the gel of the transition layer II is solidified, wherein, the 1 st steel belt area is also sprayed with chopped glass fiber to form a transition layer I, and the 2 nd to 5 th steel belt areas form an elastomer outer surface layer.
Example 2
Impact-resistant strain-corrosion-resistant continuous winding glass fiber reinforced plastic composite pipeline
The elastic body is of a seven-layer structure and sequentially comprises an inner surface layer of the elastic body, a transition layer I, a transition layer II, a glass fiber reinforced plastic structure layer, a transition layer II, a transition layer I and an outer surface layer of the elastic body from inside to outside; the thickness ratio of the inner surface layer of the elastomer, the transition layer I, the transition layer II, the glass fiber reinforced plastic structure layer, the transition layer II, the transition layer I and the outer surface layer of the elastomer is 1.5: 0.5: 0.5: 60.0: 0.5: 0.5: 1.5; wherein, the inner surface layer and the outer surface layer of the elastomer are polyurea; the transition layer I is formed by mixing polyurea and chopped glass fibers according to a mass ratio of 1.0: 0.4; the transition layer II is prepared from epoxy resin and chopped glass fiber according to a mass ratio of 1.0: 0.5; the glass fiber reinforced plastic structure layer is prepared from continuous glass fiber, chopped glass fiber, epoxy resin and quartz sand according to the mass ratio of 1.0: 0.2: 0.4: 0.1.
The preparation method comprises the following steps:
the continuous winding process is adopted for production, the polyurea elastomer is sprayed or showered in the 1 st to 5 th steel belt sections of the feeding area to manufacture the inner surface layer of the elastomer, polyurea elastomer is put in the 6 th to 8 th steel belt areas, chopped glass fiber is sprayed, and the transition layer I is manufactured by using a circular compression roller, putting chopped glass fiber and epoxy resin into the 8 th to 10 th steel belt area to manufacture a transition layer II, manufacturing a glass fiber reinforced plastic structure layer according to a conventional method, then throwing chopped glass fiber and epoxy resin in 1-3 steel band areas outside the feeding area of the glass fiber reinforced plastic structure layer, using a round press roll to press and form a transition layer II, and spraying or sprinkling polyurea elastomer in 1-5 steel band areas after the gel of the transition layer II is solidified, wherein, the 1 st steel belt area is also sprayed with chopped glass fiber to form a transition layer I, and the 2 nd to 5 th steel belt areas form an elastomer outer surface layer.
Example 3
Impact-resistant strain-corrosion-resistant continuous winding glass fiber reinforced plastic composite pipeline
The elastic body is of a seven-layer structure and sequentially comprises an inner surface layer of the elastic body, a transition layer I, a transition layer II, a glass fiber reinforced plastic structure layer, a transition layer II, a transition layer I and an outer surface layer of the elastic body from inside to outside; the thickness ratio of the inner surface layer of the elastomer, the transition layer I, the transition layer II, the glass fiber reinforced plastic structure layer, the transition layer II, the transition layer I and the outer surface layer of the elastomer is 1.2: 0.1: 0.1: 36.0: 0.3: 0.2: 1.0; wherein, the inner surface layer and the outer surface layer of the elastomer are made of polyurethane; the transition layer I is prepared from polyurethane and chopped glass fibers according to a mass ratio of 1.0: 0.4; the transition layer II is formed by mixing vinyl ester resin with amino groups and chopped glass fibers according to the mass ratio of 1.0: 0.5; the glass fiber reinforced plastic structure layer is prepared from continuous glass fiber, chopped glass fiber, unsaturated polyester resin and quartz sand according to the mass ratio of 1.0: 1.0: 3.0: 5.0.
The preparation method comprises the following steps:
the continuous winding process is adopted for production, the polyurethane elastomer is sprayed or sprinkled in the 1 st to 5 th steel belt sections of the feeding area to manufacture the inner surface layer of the elastomer, putting polyurethane and spraying chopped glass fiber in the 6 th to 8 th steel belt areas, and pressing by using a circular pressing roller to manufacture a transition layer I, putting chopped glass fiber and vinyl ester resin with amino groups into the 8 th to 10 th steel belt areas to manufacture a transition layer II, manufacturing a glass fiber reinforced plastic structure layer according to a conventional method, then throwing chopped glass fiber and vinyl ester resin with amino groups into 1-3 steel belt areas outside the feeding area of the glass steel structure layer, using a round press roll to press and form a transition layer II, and spraying or sprinkling polyurethane elastomer in 1-5 steel belt areas after the gel of the transition layer II is solidified, wherein, the 1 st steel belt area is also sprayed with chopped glass fiber to form a transition layer I, and the 2 nd to 5 th steel belt areas form an elastomer outer surface layer.
Example 4
Impact-resistant strain-corrosion-resistant continuous winding glass fiber reinforced plastic composite pipeline
The elastic body is of a seven-layer structure and sequentially comprises an inner surface layer of the elastic body, a transition layer I, a transition layer II, a glass fiber reinforced plastic structure layer, a transition layer II, a transition layer I and an outer surface layer of the elastic body from inside to outside; the thickness ratio of the inner surface layer of the elastomer, the transition layer I, the transition layer II, the glass fiber reinforced plastic structure layer, the transition layer II, the transition layer I and the outer surface layer of the elastomer is 1.1: 0.2: 0.2: 15.0: 0.3: 0.2: 1.0; wherein, the inner surface layer and the outer surface layer of the elastomer are made of polyurethane; the transition layer I is prepared from polyurethane and chopped glass fibers according to a mass ratio of 1.0: 0.2; the transition layer II is prepared from epoxy resin and chopped glass fiber according to a mass ratio of 1.0: 0.3; the glass fiber reinforced plastic structure layer is prepared from continuous glass fiber, chopped glass fiber, epoxy resin and quartz sand according to the mass ratio of 1.0: 0.5: 1.5: 2.5.
The preparation method comprises the following steps:
the continuous winding process is adopted for production, the polyurethane elastomer is sprayed or sprinkled in the 1 st to 5 th steel belt sections of the feeding area to manufacture the inner surface layer of the elastomer, putting polyurethane and spraying chopped glass fiber in the 6 th to 8 th steel belt areas, and pressing by using a circular pressing roller to manufacture a transition layer I, putting chopped glass fiber and epoxy resin into the 8 th to 10 th steel belt area to manufacture a transition layer II, manufacturing a glass fiber reinforced plastic structure layer according to a conventional method, then throwing chopped glass fiber and epoxy resin in 1-3 steel band areas outside the feeding area of the glass fiber reinforced plastic structure layer, using a round press roll to press and form a transition layer II, and spraying or sprinkling polyurethane elastomer in 1-5 steel band areas after the gel of the transition layer II is solidified, wherein, the 1 st steel belt area is also sprayed with chopped glass fiber to form a transition layer I, and the 2 nd to 5 th steel belt areas form an elastomer outer surface layer.
Example 5
Impact-resistant strain-corrosion-resistant continuous winding glass fiber reinforced plastic composite pipeline
The elastic body is of a seven-layer structure and sequentially comprises an inner surface layer of the elastic body, a transition layer I, a transition layer II, a glass fiber reinforced plastic structure layer, a transition layer II, a transition layer I and an outer surface layer of the elastic body from inside to outside; the thickness ratio of the inner surface layer of the elastomer, the transition layer I, the transition layer II, the glass fiber reinforced plastic structure layer, the transition layer II, the transition layer I and the outer surface layer of the elastomer is 1.4: 0.3: 0.3: 6.0: 0.3: 0.2: 1.0; wherein, the inner surface layer and the outer surface layer of the elastomer are polyurea; the transition layer I is formed by mixing polyurea and chopped glass fibers according to a mass ratio of 1.0: 0.3; the transition layer II is formed by mixing vinyl ester resin with amino groups and chopped glass fibers according to the mass ratio of 1.0: 0.4; the glass fiber reinforced plastic structure layer is prepared from continuous glass fiber, chopped glass fiber, unsaturated polyester resin and quartz sand according to the mass ratio of 1.0: 0.7: 2.2: 3.5.
The preparation method comprises the following steps:
the continuous winding process is adopted for production, the polyurea elastomer is sprayed or showered in the 1 st to 5 th steel belt sections of the feeding area to manufacture the inner surface layer of the elastomer, polyurea elastomer is put in the 6 th to 8 th steel belt areas, chopped glass fiber is sprayed, and the transition layer I is manufactured by using a circular compression roller, putting chopped glass fiber and vinyl ester resin with amino groups into the 8 th to 10 th steel belt areas to manufacture a transition layer II, manufacturing a glass fiber reinforced plastic structure layer according to a conventional method, then throwing chopped glass fiber and vinyl ester resin with amino groups into 1-3 steel belt areas outside the feeding area of the glass steel structure layer, using a round press roll to press and form a transition layer II, and spraying or sprinkling polyurea elastomer in 1-5 steel belt areas after the gel of the transition layer II is cured, wherein, the 1 st steel belt area is also sprayed with chopped glass fiber to form a transition layer I, and the 2 nd to 5 th steel belt areas form an elastomer outer surface layer.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The impact-resistant, strain-corrosion-resistant and continuously-wound glass fiber reinforced plastic composite pipeline is characterized by being of a seven-layer structure and sequentially comprising an inner surface layer of an elastomer, a transition layer I, a transition layer II, a glass fiber reinforced plastic structure layer, a transition layer II, a transition layer I and an outer surface layer of the elastomer from inside to outside; the thickness ratio of the inner surface layer of the elastomer, the transition layer I, the transition layer II, the glass fiber reinforced plastic structure layer, the transition layer II, the transition layer I and the outer surface layer of the elastomer is 1.0-1.5: 0.1-0.5: 0.1-0.5: 3.0-60.0: 0.1-0.5: 0.1-0.5: 0 to 1.5; the preparation method of the shock-resistant, strain-resistant and corrosion-resistant continuously-wound glass fiber reinforced plastic composite pipeline is produced by adopting a continuous winding process, polyurethane or polyurea elastomer is sprayed or showered between 1 st and 5 th steel band areas of a feeding area to prepare an inner surface layer of the elastomer, polyurethane or polyurea elastomer is fed into 6 th to 8 th steel band areas and chopped glass fiber is sprayed and is driven and pressed by a circular press roll to prepare a transition layer I, chopped glass fiber and unsaturated polyester resin or vinyl ester resin or epoxy resin with amino groups are fed into 8 th to 10 th steel band areas to prepare a transition layer II, a glass fiber reinforced plastic structure layer is prepared according to a conventional method, then chopped glass fiber and unsaturated polyester resin or vinyl ester resin or epoxy resin with amino groups are fed into 1 st to 3 steel band areas outside the feeding area of the glass fiber reinforced plastic structure layer and are driven and pressed by the circular press roll to prepare the transition layer II, and (3) after the gel of the transition layer II is cured, spraying or showering a polyurethane or polyurea elastomer in 1-5 steel belt areas, wherein the 1 st steel belt area is also sprayed with chopped glass fibers to form a transition layer I, and the 2 nd-5 th steel belt areas form an elastomer outer surface layer.
2. The impact-resistant, strain-corrosion-resistant and continuously-wound glass fiber reinforced plastic composite pipeline as claimed in claim 1, wherein the two transition layers I are polyurethane or polyurea and chopped glass fiber in a mass ratio of 1.0: 0.2 to 0.4.
3. The impact-resistant, strain-corrosion-resistant and continuously-wound glass fiber reinforced plastic composite pipe as claimed in claim 1, wherein the two transition layers II are unsaturated polyester resin or vinyl ester resin with amino groups or epoxy resin and chopped glass fiber in a mass ratio of 1.0: 0.3 to 0.5.
4. The impact-resistant, strain-corrosion-resistant and continuously-wound glass fiber reinforced plastic composite pipeline as claimed in claim 1, wherein the glass fiber reinforced plastic structure layer is formed by mixing continuous glass fiber, chopped glass fiber, unsaturated polyester resin or epoxy resin, and quartz sand according to a mass ratio of 1.0: 0.2-1.0: 0.4-3.0: 0 to 5.0.
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| JP2019173794A (en) * | 2018-03-27 | 2019-10-10 | 積水化学工業株式会社 | Resin pipe, multilayer pipe, method for producing resin pipe, and method for producing multilayer pipe |
| WO2020002660A1 (en) * | 2018-06-29 | 2020-01-02 | Tdc International Ag | Coated pipe and pipe combination |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP0333532A1 (en) * | 1988-02-29 | 1989-09-20 | Institut Français du Pétrole | Pipe made of composite materials having low sensibility for stretch changes due to internal pressure |
| US5996643A (en) * | 1998-09-18 | 1999-12-07 | Stonitsch; Lawrence J. | Foam insulation system for pipes |
| EP1628059A1 (en) * | 2004-08-19 | 2006-02-22 | Angerlehner Hoch- und Tiefbau GmbH | Process for producing glass fiber reinforced plastic pipes having every section and sandwich structured |
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| JP2019173794A (en) * | 2018-03-27 | 2019-10-10 | 積水化学工業株式会社 | Resin pipe, multilayer pipe, method for producing resin pipe, and method for producing multilayer pipe |
| WO2020002660A1 (en) * | 2018-06-29 | 2020-01-02 | Tdc International Ag | Coated pipe and pipe combination |
| CN208565845U (en) * | 2018-07-09 | 2019-03-01 | 福建亚通建材有限公司 | A kind of laminated composite pipe road |
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