CN110789158A - Manufacturing method of continuous glass fiber impregnated PE silicon core pipe composite pipe - Google Patents
Manufacturing method of continuous glass fiber impregnated PE silicon core pipe composite pipe Download PDFInfo
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- CN110789158A CN110789158A CN201911091962.1A CN201911091962A CN110789158A CN 110789158 A CN110789158 A CN 110789158A CN 201911091962 A CN201911091962 A CN 201911091962A CN 110789158 A CN110789158 A CN 110789158A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- 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
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/52—Pultrusion, i.e. forming and compressing by continuously pulling through a die
- B29C70/523—Pultrusion, i.e. forming and compressing by continuously pulling through a die and impregnating the reinforcement in the die
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- 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
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/52—Pultrusion, i.e. forming and compressing by continuously pulling through a die
- B29C70/525—Component parts, details or accessories; Auxiliary operations
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
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- 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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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a method for manufacturing a continuous glass fiber impregnated PE silicon core pipe composite pipe, and belongs to the field of PE silicon core pipe composite pipes. A method for manufacturing a continuous glass fiber impregnated PE silicon core pipe composite pipe mainly comprises continuous fibers, silane and titanate, and is operated by adopting the following steps: s1, putting the continuous fiber into silane and titanate for impregnation; s2, drying the material fiber impregnated in the step S1; s3, rolling and packaging the dried material fiber; s4, guiding the strand-shaped material fiber into an extrusion die through a traction device; s5, extruding molten plastic into the die, wherein the molten plastic can be impregnated with the connecting material fiber and coated with the connecting material fiber, and then extruding the connecting material fiber into a pipe; s6, cooling and forming the pipe in the step S5; s7, cutting the pipe in the step S6 to a fixed length; the invention can increase the tensile strength of the PE silicon core pipe, and achieve the effects of saving materials, increasing economic benefits and enhancing performance.
Description
Technical Field
The invention relates to the technical field of PE silicon core pipe composite pipes, in particular to a manufacturing method of a continuous glass fiber impregnated PE silicon core pipe composite pipe.
Background
The continuous fiber refers to the fiber which is continuously coiled, each coil is several kilometers long, and the rigidity and the flexibility are good. The fiber comprises inorganic fiber, carbon fiber and aramid fiber, the PE refers to polyethylene resin plastic and comprises high-density polyethylene, linear low-density polyethylene resin, polyethylene is abbreviated as PE for short, and a PE silicon core pipe plastic pipe is widely applied to the non-excavation power and communication industries, the PE silicon core pipe has high requirements on ring rigidity and toughness, and has high requirements on tensile strength due to the fact that the PE silicon core pipe is a dragging pipe, and as is well known, the tensile strength of the fiber can reach 600 plus 1000MPa and is 20 times of PE, so that the wall thickness of the pipe can be reduced by adding continuous fiber into the PE silicon core pipe, the tensile strength of the PE silicon core pipe can be increased, the material is saved, the economic benefit is increased, the performance is enhanced, and the problems of quality accidents, silicon core pipe breakage and the like of the silicon core pipe in the dragging process can be prevented.
Disclosure of Invention
The invention aims to solve the problems in the background art and provides a method for manufacturing a continuous glass fiber impregnated PE silicon core pipe composite pipe.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for manufacturing a continuous glass fiber impregnated PE silicon core pipe composite pipe mainly comprises continuous fibers, silane and titanate, and comprises the following steps:
s1, putting the continuous fiber into silane and titanate for dipping, and fully dipping, reacting, grafting or coupling;
s2, drying the material fiber impregnated in the step S1 to remove redundant moisture and solvent;
s3, rolling and packaging the dried material fiber;
s4, guiding the strand-shaped material fiber into an extrusion die through a traction device;
s5, extruding molten plastic into the die, wherein the molten plastic can be impregnated with the connecting material fiber and coated with the connecting material fiber, and then extruding the connecting material fiber into a pipe;
s6, cooling and forming the pipe in the step S5;
and S7, cutting the pipe in the step S6 to a fixed length to obtain the MPP composite pipe with the required size.
Preferably, the dipping time in step S1 is between 3 and 60 minutes.
Preferably, the single package fiber of the material fiber in step S3 is 1000-10000 m.
Preferably, the individual strands of material fibers in step S4 have a grammage of between 100 and 800 grams per kilometer.
Preferably, the coating treatment of the material fiber in step S5 is performed for a time period of 3 to 60 minutes at a temperature of 30 to 100 ℃.
Preferably, the melt index in step S5 is 0.1-20g, the heat distortion temperature is not less than 150 ℃, and the elongation at break is 400-800%.
Preferably, the wall thickness of the pipe in step S5 is between 5mm and 50 mm.
Preferably, the outer diameter of the pipe in step S5 is between 50mm and 1000 mm.
Preferably, the extrusion in step S5 is performed in an MPP plastic extruder.
Compared with the prior art, the invention provides a method for manufacturing a continuous glass fiber impregnated PE silicon core pipe composite pipe, which has the following beneficial effects:
1. the continuous glass fiber impregnated PE silicon core pipe composite pipe manufacturing method comprises the steps of firstly impregnating continuous fibers in silane and titanate to ensure that the continuous fibers are sufficiently impregnated with the silane and the titanate for reaction, grafting or coupling, drying the impregnated material fibers after being impregnated for a certain time to remove redundant solvent and moisture, then rolling and packaging the material fibers, wherein the rolled single-package fibers are 1000 plus 10000 m, the rolled fibers are placed on a spindle of plastic fiber extrusion composite equipment, 20-200 fiber placing spindles are arranged according to the difference of the inner diameter and the outer diameter of a pipe, the fibers are unfolded one by one, the fibers are pulled through an extrusion pipe mold after being unfolded, a circle is uniformly distributed in the radial direction of the pipe mold, the distance between each bundle is 1-3mm, and the fiber bundles are ensured not to be folded, turned over and uniformly spaced through a limiting device, an MPP plastic extruder is arranged at a position vertical to the fiber unfolding and stretching direction, the extruder is started, molten plastic is extruded into a mold, the molten plastic can be used for impregnating and coating continuous fibers, and the PE silicon core pipe coated with the continuous fibers is subjected to cooling shaping traction and coiling, wherein the gram weight of each kilometer of a single bundle of material fiber is between 100 and 800 grams, the coating treatment time of the material fiber is between 3 and 60 minutes, the temperature is between 30 and 100 ℃, the melt index is 0.1 to 20g, the thermal deformation temperature is not lower than 150 ℃, the elongation at break is 400 to 800 percent, the wall thickness of the extruded pipe is between 5 and 50mm, the outer diameter of the pipe is between 50 and 1000mm, and the pipe is cooled and shaped and finally cut into the PE silicon core pipe coated continuous fiber composite pipe in a fixed length mode.
The invention adds continuous fiber into PE silicon core tube to reduce the wall thickness of tube, increase the tensile strength of PE silicon core tube, save material, increase economic benefit, enhance performance, and prevent quality accident of silicon core tube in dragging process, silicon core tube breaking, and the like.
Drawings
FIG. 1 is a first schematic structural view of a continuous glass fiber impregnated PE silicon core pipe composite pipe material provided by the invention;
fig. 2 is a schematic structural diagram of a continuous glass fiber impregnated PE silicon core pipe composite pipe material according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1:
a method for manufacturing a continuous glass fiber impregnated PE silicon core pipe composite pipe mainly comprises continuous fibers, silane and titanate, and comprises the following steps:
s1, putting the continuous fiber into silane and titanate for dipping, and fully dipping, reacting, grafting or coupling;
s2, drying the material fiber impregnated in the step S1 to remove redundant moisture and solvent;
s3, rolling and packaging the dried material fiber;
s4, guiding the strand-shaped material fiber into an extrusion die through a traction device;
s5, extruding molten plastic into the die, wherein the molten plastic can be impregnated with the connecting material fiber and coated with the connecting material fiber, and then extruding the connecting material fiber into a pipe;
s6, cooling and forming the pipe in the step S5;
and S7, cutting the pipe in the step S6 to a fixed length to obtain the MPP composite pipe with the required size.
The dipping time in step S1 was 30 minutes.
The single package fiber of the material fiber in step S3 was 3000 meters.
The weight of the single bundle of material fibers in the step S4 is 300 g per kilometer.
The time for the coating treatment of the material fiber in step S5 was 30 minutes, and the temperature was 30 ℃.
The melt index in step S5 was 3g, the heat distortion temperature was not less than 150 ℃ and the elongation at break was 400%.
The wall thickness of the pipe in the step S5 is equal to 10 mm.
The outer diameter of the pipe in step S5 was 100 mm.
The extrusion in step S5 is performed in an MPP plastic extruder.
Referring to fig. 1-2, in the invention, firstly, continuous fiber is dipped in silane and titanate to ensure that the continuous fiber is fully dipped, reacted, grafted or coupled with the silane and the titanate, after dipping for a certain time, the dipped material fiber is dried to remove redundant solvent and moisture, then the material fiber is rolled and packaged, the rolled single package fiber is 3000 m, the rolled fiber is placed on a spindle of plastic fiber extrusion composite equipment, 30 fiber placing spindles are arranged according to the difference of the inner diameter and the outer diameter of a pipe, the fiber is unfolded one by one, after being unfolded, the fiber is drawn by an extrusion pipe mold, a circle is uniformly distributed in the radial direction of the pipe mold, the distance between each bundle is 1mm, the fiber bundles are ensured not to be broken by a limiting device, turned over and evenly spaced, an MPP plastic extruder is arranged at the position vertical to the stretching direction of the fiber unfolding, and starting an extruder, extruding molten plastic into a mold, dipping the continuous fibers in the molten plastic, coating the continuous fibers, drawing and coiling the PE silicon core pipe coated with the continuous fibers by cooling, shaping, wherein the gram weight of a single bundle of material fibers per kilometer is 300 g, the coating treatment time of the material fibers is 30 minutes, the temperature is 30 ℃, the melt index is 3g, the thermal deformation temperature is not lower than 150 ℃, the elongation at break is 400%, the wall thickness of the extruded pipe is 10mm, the outer diameter of the pipe is 100mm, cooling, shaping and finally cutting into the continuous fiber composite pipe coated with the silicon core pipe in a fixed length manner.
Example 2:
a method for manufacturing a continuous glass fiber impregnated PE silicon core pipe composite pipe mainly comprises continuous fibers, silane and titanate, and comprises the following steps:
s1, putting the continuous fiber into silane and titanate for dipping, and fully dipping, reacting, grafting or coupling;
s2, drying the material fiber impregnated in the step S1 to remove redundant moisture and solvent;
s3, rolling and packaging the dried material fiber;
s4, guiding the strand-shaped material fiber into an extrusion die through a traction device;
s5, extruding molten plastic into the die, wherein the molten plastic can be impregnated with the connecting material fiber and coated with the connecting material fiber, and then extruding the connecting material fiber into a pipe;
s6, cooling and forming the pipe in the step S5;
and S7, cutting the pipe in the step S6 to a fixed length to obtain the MPP composite pipe with the required size.
The dipping time in step S1 was 45 minutes.
The single package fiber of the material fiber in step S3 was 8000 meters.
The weight of the single bundle of material fibers in the step S4 is 600 g per kilometer.
The time for the coating treatment of the material fiber in step S5 was 45 minutes, and the temperature was 80 ℃.
The melt index in step S5 was 10g, the heat distortion temperature was not less than 150 ℃ and the elongation at break was 600%.
The wall thickness of the pipe in the step S5 is equal to 40 mm.
The outer diameter of the pipe in step S5 was 500 mm.
The extrusion in step S5 is performed in an MPP plastic extruder.
Referring to fig. 1-2, in the invention, continuous fiber is firstly dipped in silane and titanate to ensure that the continuous fiber is fully dipped, reacted, grafted or coupled with the silane and the titanate, after dipping for a certain time, the dipped material fiber is dried to remove redundant solvent and moisture, then the material fiber is rolled and packaged, the rolled single package fiber is 5000 meters, the rolled fiber is placed on a spindle of plastic fiber extrusion composite equipment, 100 fiber placing spindles are arranged according to the difference of the inner diameter and the outer diameter of a pipe, the fiber is unfolded one by one, after being unfolded, the fiber is drawn by an extrusion pipe mold, a circle is uniformly distributed in the radial direction of the pipe mold, the distance between each bundle is 2mm, the fiber bundles are ensured not to be broken by a limiting device, turned over and evenly spaced, an MPP plastic extruder is arranged at the position vertical to the stretching direction of the fiber, and starting an extruder, extruding molten plastic into a mold, dipping and coating continuous fibers by the molten plastic, drawing and coiling the PE silicon core pipe coated with the continuous fibers by cooling, shaping and processing, wherein the gram weight of each kilometer of a single bundle of material fibers is 600 g, the coating processing time of the material fibers is 45 minutes, the temperature is 80 ℃, the melt index is 10g, the thermal deformation temperature is not lower than 150 ℃, the elongation at break is 600%, the wall thickness of the extruded pipe is 40mm, the outer diameter of the pipe is 500mm, cooling and shaping are carried out, and finally the pipe is cut into the PE silicon core pipe coated continuous fiber composite pipe in a fixed length manner.
Example 3:
a method for manufacturing a continuous glass fiber impregnated PE silicon core pipe composite pipe mainly comprises continuous fibers, silane and titanate, and comprises the following steps:
s1, putting the continuous fiber into silane and titanate for dipping, and fully dipping, reacting, grafting or coupling;
s2, drying the material fiber impregnated in the step S1 to remove redundant moisture and solvent;
s3, rolling and packaging the dried material fiber;
s4, guiding the strand-shaped material fiber into an extrusion die through a traction device;
s5, extruding molten plastic into the die, wherein the molten plastic can be impregnated with the connecting material fiber and coated with the connecting material fiber, and then extruding the connecting material fiber into a pipe;
s6, cooling and forming the pipe in the step S5;
and S7, cutting the pipe in the step S6 to a fixed length to obtain the MPP composite pipe with the required size.
The dipping time in step S1 was 60 minutes.
The single package fiber of the material fiber in step S3 was 10000 meters.
The single bundle of material fibers in the step S4 has a gram weight of 800 grams per kilometer.
The time for the coating treatment of the material fiber in step S5 was 60 minutes, and the temperature was 100 ℃.
The melt index in step S5 was 20g, the heat distortion temperature was not less than 150 ℃ and the elongation at break was 800%.
The wall thickness of the pipe in the step S5 is equal to 50 mm.
The outer diameter of the pipe in step S5 was 1000 mm.
The extrusion in step S5 is performed in an MPP plastic extruder.
Referring to fig. 1-2, in the invention, firstly, continuous fiber is dipped in silane and titanate to ensure that the continuous fiber is fully dipped, reacted, grafted or coupled with the silane and the titanate, after dipping for a certain time, the dipped material fiber is dried to remove redundant solvent and moisture, then the material fiber is rolled and packaged, the rolled single package fiber is 10000 m, the rolled fiber is placed on a spindle of plastic fiber extrusion composite equipment, 200 fiber placing spindles are arranged according to the difference of the inner diameter and the outer diameter of a pipe, the fiber is unfolded one by one, after being unfolded, the fiber is drawn by an extrusion pipe mold, a circle is uniformly distributed in the radial direction of the pipe mold, the distance between each bundle is 1-3mm, a limiting device is used for ensuring that the fiber bundles are not broken, turned over and evenly spaced, and an MPP plastic extruder is arranged at the position vertical to the stretching direction of the fiber unfolding, and starting an extruder, extruding molten plastic into a mold, dipping the continuous fibers in the molten plastic, coating the continuous fibers, drawing and coiling the PE silicon core pipe coated with the continuous fibers by cooling, shaping, wherein each kilometer of a single bundle of material fibers is 800 g, the coating treatment time of the material fibers is 60 minutes, the temperature is 100 ℃, the melt index is 20g, the thermal deformation temperature is not lower than 150 ℃, the elongation at break is 800%, the wall thickness of the extruded pipe is 50mm, the outer diameter of the pipe is 1000mm, cooling and shaping are carried out, and finally the PE silicon core pipe coated continuous fiber composite pipe is cut into a fixed-length PE silicon core pipe.
According to the invention, the continuous fiber is added into the PE silicon core pipe, so that the wall thickness of the pipe can be reduced, the tensile strength of the PE silicon core pipe is increased, the effects of saving materials, increasing economic benefits and enhancing performance are achieved, the problems of quality accidents of the silicon core pipe in the dragging process, breakage of the silicon core pipe and the like can be prevented, the waste material of the product can be crushed, and the waste material can be added into a new material in proportion for recycling, so that the PE silicon core pipe is an environment-friendly recyclable composite material.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. A method for manufacturing a continuous glass fiber impregnated PE silicon core pipe composite pipe is characterized by mainly comprising continuous fibers, silane and titanate, and adopting the following steps:
s1, putting the continuous fiber into silane and titanate for dipping, and fully dipping, reacting, grafting or coupling;
s2, drying the material fiber impregnated in the step S1 to remove redundant moisture and solvent;
s3, rolling and packaging the dried material fiber;
s4, guiding the strand-shaped material fiber into an extrusion die through a traction device;
s5, extruding molten plastic into the die, impregnating the molten plastic with material fibers, coating the material fibers, and extruding the material fibers into a pipe;
s6, cooling and forming the pipe in the step S5;
and S7, cutting the pipe in the step S6 to a fixed length to obtain the MPP composite pipe with the required size.
2. The method for manufacturing the continuous glass fiber impregnated PE silicon core pipe composite pipe material as claimed in claim 1, wherein the impregnation time in step S1 is 3 to 60 minutes.
3. The method as claimed in claim 1, wherein the single package fiber of the material fiber in step S3 is 1000-10000 m.
4. The method as claimed in claim 1, wherein the single strand of material fiber in step S4 has a grammage of 100 g to 800 g per km.
5. The method for manufacturing the continuous glass fiber impregnated PE silicon core pipe composite pipe material as claimed in claim 1, wherein the time for coating the material fiber in step S5 is 3 to 60 minutes, and the temperature is 30 to 100 ℃.
6. The method for manufacturing the continuous glass fiber impregnated PE silicon core pipe composite pipe material as claimed in claim 5, wherein the melt index in the step S5 is 0.1-20g, the thermal deformation temperature is not lower than 150 ℃, and the elongation at break is 400-800%.
7. The method for manufacturing the continuous glass fiber impregnated PE silicon core pipe composite pipe material as claimed in claim 6, wherein the wall thickness of the pipe material in the step S5 is between 5mm and 50 mm.
8. The method as claimed in claim 7, wherein the outer diameter of the pipe in step S5 is 50mm to 1000 mm.
9. The method for manufacturing the continuous glass fiber impregnated PE silicon core pipe composite pipe as claimed in claim 8, wherein the extrusion in step S5 is performed in an MPP plastic extruder.
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Cited By (1)
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| CN111619143A (en) * | 2020-05-29 | 2020-09-04 | 江苏神马电力股份有限公司 | Pultrusion device and technology |
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