CN115124777A - Glass fiber reinforced plastic pipe and preparation method thereof - Google Patents
Glass fiber reinforced plastic pipe and preparation method thereof Download PDFInfo
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- CN115124777A CN115124777A CN202210798178.XA CN202210798178A CN115124777A CN 115124777 A CN115124777 A CN 115124777A CN 202210798178 A CN202210798178 A CN 202210798178A CN 115124777 A CN115124777 A CN 115124777A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 40
- 239000011152 fibreglass Substances 0.000 title claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 141
- 229920003023 plastic Polymers 0.000 claims abstract description 100
- 239000004033 plastic Substances 0.000 claims abstract description 100
- 239000003365 glass fiber Substances 0.000 claims abstract description 54
- 230000032683 aging Effects 0.000 claims abstract description 10
- 239000000843 powder Substances 0.000 claims description 76
- 238000003756 stirring Methods 0.000 claims description 70
- 238000010010 raising Methods 0.000 claims description 69
- 238000002156 mixing Methods 0.000 claims description 62
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical class O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 60
- 238000000227 grinding Methods 0.000 claims description 56
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 49
- 239000010445 mica Substances 0.000 claims description 49
- 229910052618 mica group Inorganic materials 0.000 claims description 49
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 49
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 42
- 239000008367 deionised water Substances 0.000 claims description 42
- 229910021641 deionized water Inorganic materials 0.000 claims description 42
- ZQBAKBUEJOMQEX-UHFFFAOYSA-N phenyl salicylate Chemical compound OC1=CC=CC=C1C(=O)OC1=CC=CC=C1 ZQBAKBUEJOMQEX-UHFFFAOYSA-N 0.000 claims description 40
- 229920000881 Modified starch Polymers 0.000 claims description 35
- 239000004368 Modified starch Substances 0.000 claims description 35
- 238000001035 drying Methods 0.000 claims description 35
- 235000019426 modified starch Nutrition 0.000 claims description 35
- 235000012424 soybean oil Nutrition 0.000 claims description 35
- 239000003549 soybean oil Substances 0.000 claims description 35
- 238000006243 chemical reaction Methods 0.000 claims description 34
- 239000000440 bentonite Substances 0.000 claims description 32
- 229910000278 bentonite Inorganic materials 0.000 claims description 32
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 28
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 28
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 28
- 239000003607 modifier Substances 0.000 claims description 28
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical class [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims description 28
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 21
- 238000001354 calcination Methods 0.000 claims description 21
- 238000004140 cleaning Methods 0.000 claims description 21
- 239000004408 titanium dioxide Substances 0.000 claims description 21
- 229960000969 phenyl salicylate Drugs 0.000 claims description 20
- -1 polypropylene Polymers 0.000 claims description 19
- 239000000203 mixture Substances 0.000 claims description 16
- 241000196324 Embryophyta Species 0.000 claims description 14
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 14
- 239000004743 Polypropylene Substances 0.000 claims description 14
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 14
- 229920002472 Starch Polymers 0.000 claims description 14
- 239000003963 antioxidant agent Substances 0.000 claims description 14
- 230000003078 antioxidant effect Effects 0.000 claims description 14
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 14
- 229910052698 phosphorus Inorganic materials 0.000 claims description 14
- 239000011574 phosphorus Substances 0.000 claims description 14
- 229920000867 polyelectrolyte Polymers 0.000 claims description 14
- 229920013716 polyethylene resin Polymers 0.000 claims description 14
- 229920001155 polypropylene Polymers 0.000 claims description 14
- 239000011347 resin Substances 0.000 claims description 14
- 229920005989 resin Polymers 0.000 claims description 14
- 239000002002 slurry Substances 0.000 claims description 14
- 239000011780 sodium chloride Substances 0.000 claims description 14
- 239000008107 starch Substances 0.000 claims description 14
- 235000019698 starch Nutrition 0.000 claims description 14
- 239000000725 suspension Substances 0.000 claims description 14
- 238000009210 therapy by ultrasound Methods 0.000 claims description 14
- RIOQSEWOXXDEQQ-UHFFFAOYSA-N triphenylphosphine Chemical compound C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 RIOQSEWOXXDEQQ-UHFFFAOYSA-N 0.000 claims description 14
- 239000004593 Epoxy Substances 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 13
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 claims description 7
- 238000005119 centrifugation Methods 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 7
- KWIUHFFTVRNATP-UHFFFAOYSA-N glycine betaine Chemical compound C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 claims description 7
- 239000012535 impurity Substances 0.000 claims description 7
- 239000011261 inert gas Substances 0.000 claims description 7
- 239000011344 liquid material Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 238000004321 preservation Methods 0.000 claims description 7
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 7
- 238000005406 washing Methods 0.000 claims description 7
- 238000001556 precipitation Methods 0.000 claims description 2
- 229920002430 Fibre-reinforced plastic Polymers 0.000 claims 4
- 239000011151 fibre-reinforced plastic Substances 0.000 claims 3
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000005452 bending Methods 0.000 abstract 1
- 238000005336 cracking Methods 0.000 abstract 1
- 230000001376 precipitating effect Effects 0.000 description 5
- 238000005507 spraying Methods 0.000 description 5
- 239000004698 Polyethylene Substances 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 description 2
- 230000032798 delamination Effects 0.000 description 2
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 description 2
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000009700 powder processing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/0405—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres
- C08J5/043—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres with glass fibres
-
- 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
- B29C70/02—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising combinations of reinforcements, e.g. non-specified reinforcements, fibrous reinforcing inserts and fillers, e.g. particulate fillers, incorporated in matrix material, forming one or more layers and with or without non-reinforced or non-filled layers
- B29C70/021—Combinations of fibrous reinforcement and non-fibrous material
- B29C70/025—Combinations of fibrous reinforcement and non-fibrous material with particular filler
-
- 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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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/06—Polyethene
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- C08J2403/00—Characterised by the use of starch, amylose or amylopectin or of their derivatives or degradation products
- C08J2403/02—Starch; Degradation products thereof, e.g. dextrin
-
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/10—Homopolymers or copolymers of propene
- C08J2423/12—Polypropene
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- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K3/34—Silicon-containing compounds
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- C08K3/346—Clay
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- 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
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Abstract
The invention discloses a glass fiber reinforced plastic pipe and a preparation method thereof, aiming at the problems that the prior pipe is easy to deform and bulge after bending and is easy to generate layering and has high tensile strength change rate, the invention proposes the following scheme that the plastic pipe comprises a plastic layer, a glass fiber layer is filled in the plastic layer, an inner pipe layer is bonded in the inner layer of the plastic layer, an outer pipe layer is bonded on the surface of the plastic layer, the materials of all layers adopt similar structures, only a small amount of materials have difference, the materials of all layers can be well fused, thereby the inner part of the pipe can be integrated without layering phenomenon, the strength of the pipe can be ensured, the strength of the pipe can be enhanced through the glass fiber in the plastic layer, and the inner pipe layer and the outer pipe layer can ensure the quality of the pipe without bulge cracking phenomenon when the pipe is bent, and the material can reduce the aging degree of ultraviolet rays to the pipeline and reduce the change rate of the tensile strength of the pipeline.
Description
Technical Field
The invention relates to the technical field of pipelines, in particular to a glass fiber reinforced plastic pipe and a preparation method thereof.
Background
The patent of application No. CN202010774109.6 discloses an impact-resistant polyethylene plastic pipe and a preparation method thereof, wherein ultra-high molecular weight polyethylene is used as a main raw material, the surface of the ultra-high molecular weight polyethylene is modified by an ultraviolet radiation crosslinking technology, and polyethylene wax grafted polysiloxane and a quaternized nano ceramic powder processing aid are added to prepare the polyethylene plastic pipe.
However, the impact-resistant polyethylene plastic pipe and the preparation method thereof have some problems, for example, in order to enhance the product quality of the pipe, a multilayer structure is often adopted, and different materials are adopted between layers, which results in poor adhesion between the layers, easy delamination phenomenon and pipeline damage, when the pipeline is bent, the pipeline is easy to bulge and deform, even crack, and the use of the pipeline is affected, and meanwhile, the tensile strength change rate of the pipeline is increased after ultraviolet irradiation and aging.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a glass fiber reinforced plastic pipe and a preparation method thereof.
The invention provides a glass fiber reinforced plastic pipe, which comprises a plastic layer, wherein a glass fiber layer is filled in the plastic layer, an inner pipe layer is bonded in the inner layer of the plastic layer, an outer pipe layer is bonded on the surface of the plastic layer, the plastic layer is made of 50-55 parts of polyethylene resin, 40-45 parts of polypropylene resin, 0.5-1 part of phosphorus antioxidant, 0.5-1.5 parts of stearate, 1-5 parts of modified bentonite and 1-5 parts of epoxy soybean oil modifier, the glass fiber layer is made of 35-45 parts of glass fiber, 1-5 parts of modified titanium dioxide powder, 0.1-0.5 part of silane coupling agent and 50-65 parts of hydrogen peroxide solution, the plastic layer comprises a mica material, phenyl salicylate and modified mica powder, the phenyl salicylate accounts for 1-5% of the total material of the outer pipe layer, the modified mica powder accounts for 10% -15% of the total material of the outer pipe layer, the material of the inner pipe layer comprises the material of the plastic layer, modified starch and activated carbon, the modified starch accounts for 8% -13% of the total material of the inner pipe layer, and the activated carbon accounts for 1% -3% of the total material of the inner pipe layer.
Preferably, the preparation method of the modified bentonite comprises the following steps: obtaining bentonite, crushing the bentonite, pouring the bentonite into deionized water for mixing and dissolving, pouring the bentonite into centrifugal equipment, removing impurities in the slurry by centrifugation, purifying, pouring the slurry into a reaction kettle, adding 3% of caustic soda and 2% of sodium bicarbonate, raising the temperature to 65-75 ℃, raising the stirring speed to 240-320 r/min, stirring for 1 hour, cooling and aging, removing the upper suspension after 1 hour, adding polyelectrolyte, stirring uniformly, carrying out heat preservation reaction, then carrying out precipitation, removing the upper suspension, injecting deionized water for cleaning, washing away the polyelectrolyte, drying, and finally pouring the mixture into grinding equipment for grinding to obtain the modified bentonite.
Preferably, the preparation method of the epoxidized soybean oil modifier comprises the following steps: getting epoxidized soybean oil, triphenylphosphine and ethanol, pouring the obtained product into a reaction kettle, raising the temperature to 125-135 ℃, raising the stirring speed to 60-120 r/min, and reacting at constant temperature for 5 hours to obtain the epoxidized soybean oil modifier.
Preferably, the method for preparing the modified titanium dioxide powder comprises: and (2) obtaining titanium dioxide, pouring the titanium dioxide into calcining equipment for calcining, grinding and crushing after the calcining is finished, then pouring the titanium dioxide into ethanol for mixing and dispersing, then adding N, N, N-trimethylglycine and graphite powder, raising the temperature to 55-65 ℃, carrying out ultrasonic treatment for 15 minutes, then pouring deionized water for repeatedly cleaning, drying and grinding to obtain the modified titanium dioxide powder.
Preferably, the preparation method of the modified mica powder comprises the following steps: and (3) obtaining mica powder, pouring the mica powder into hydrogen peroxide for mixing, pouring the mixture into grinding equipment for grinding after uniform mixing, pouring deionized water for cleaning after grinding for 1 hour, and drying to obtain the modified mica powder.
Preferably, the preparation method of the modified starch comprises the following steps: obtaining plant starch, sodium chloride and deionized water, pouring the plant starch, the sodium chloride and the deionized water into a reaction kettle, raising the temperature to 75-85 ℃, raising the stirring speed to 120-240 r/min, stirring for 15 minutes, drying and grinding to obtain the modified starch.
A preparation method of a glass fiber reinforced plastic pipe comprises the following steps:
s1: mixing glass fiber, modified titanium dioxide powder, a silane coupling agent and a hydrogen peroxide solution, and drying to obtain a material of a glass fiber layer;
s2: pouring polyethylene resin, polypropylene resin, a phosphorus antioxidant, stearate, modified bentonite and an epoxidized soybean oil modifier into a high-speed mixer, and stirring and mixing to obtain a material of a plastic layer;
s3: taking a part of the material of the plastic layer, adding phenyl salicylate and modified mica powder, and heating and mixing to obtain the material of the outer pipe layer;
s4: then obtaining a part of material of the plastic layer, adding modified starch and activated carbon, and heating and mixing to obtain the material of the inner pipe layer;
s5: taking a mold, rotating the mold, and pouring the liquid material of the outer tube layer until the material of the outer tube layer is uniformly dispersed in the mold to obtain the outer tube layer;
s6: mixing the material of the plastic layer with the material of the glass fiber, then pouring the mixture into a mold, and continuously rotating and dispersing to obtain the plastic layer and the glass fiber layer;
s7: and pouring the material of the inner pipe layer into the mold, continuously rotating, dispersing to obtain the inner pipe layer, and completely curing the obtained material to obtain the glass fiber reinforced plastic pipe.
Preferably, in the step of S1, the temperature is raised to 55 to 65 ℃, the stirring speed is raised to 120 to 240r/min, and the ultrasonic treatment is started for 5 minutes after the stirring is uniform.
Preferably, in the step of S2, the temperature is raised to 125 to 135 ℃, the stirring speed is raised to 60 to 80r/min, and inert gas is injected for protection.
Preferably, in the step of S7, after the material inside the mold exothermically reacts, the mold is sprayed with hot water such that the mold temperature is maintained at 60 ℃ until the pipe is drawn out.
The beneficial effects of the invention are:
adopt similar structure between each layer material, only there is the difference on a small amount of materials, let and to fuse well between each layer material, thereby let the inside integrative that forms of tubular product, can not produce the phenomenon of layering, the intensity of pipeline has been ensured simultaneously, the intensity of pipeline can be strengthened to glass fiber through the plastic layer is inside, in addition interior tube layer and outer tube layer, when the pipeline is crooked, the phenomenon of swell fracture can not appear in the pipeline, ensure the quality of pipeline, and the material can reduce the ageing degree of ultraviolet to the pipeline, reduce the tensile strength rate of change of pipeline.
Drawings
FIG. 1 is a flow chart of the present invention;
fig. 2 is a schematic perspective view of the present invention.
In the figure: 1. a plastic layer; 2. a glass fiber layer; 3. an inner tube layer; 4. an outer tube layer.
Detailed Description
The present invention will be further illustrated with reference to the following specific examples.
Referring to FIGS. 1-2, embodiment one
The embodiment provides a glass fiber reinforced plastic pipe which comprises a plastic layer 1, wherein a glass fiber layer 2 is filled in the plastic layer 1, an inner pipe layer 3 is bonded in the inner layer of the plastic layer 1, an outer pipe layer 4 is bonded on the surface of the plastic layer 1, the plastic layer 1 is made of 52 parts of polyethylene resin, 42 parts of polypropylene resin, 0.8 part of phosphorus antioxidant, 1.2 parts of stearate, 2 parts of modified bentonite and 2 parts of epoxy soybean oil modifier, the glass fiber layer 2 is made of 42 parts of glass fiber, 4 parts of modified titanium dioxide powder, 0.5 part of silane coupling agent and 53.5 parts of hydrogen peroxide solution, the outer pipe layer 4 is made of materials including the plastic layer 1, phenyl salicylate and modified mica powder, the phenyl salicylate accounts for 2% of the total materials of the outer pipe layer 4, the modified mica powder accounts for 12% of the total materials of the outer pipe layer 4, and the inner pipe layer 3 is made of materials including the materials of the plastic layer 1, the inner pipe layer 2% of the total materials and the plastic layer, Modified starch and activated carbon, the modified starch accounts for 11% of all materials of the inner pipe layer 3, the activated carbon accounts for 2% of all materials of the inner pipe layer 3, the preparation method of the modified bentonite comprises the following steps: obtaining bentonite, crushing the bentonite, pouring the bentonite into deionized water for mixing and dissolving, pouring the bentonite into centrifugal equipment, removing impurities in the slurry by centrifugation, purifying, pouring the slurry into a reaction kettle, adding 3% of caustic soda and 2% of sodium bicarbonate, raising the temperature to 71 ℃, raising the stirring speed to 290r/min, stirring for 1 hour, cooling and aging, taking out upper suspension after 1 hour, adding polyelectrolyte and stirring uniformly, carrying out heat preservation reaction, then precipitating, removing the upper suspension, injecting deionized water for cleaning, washing the polyelectrolyte, drying, finally pouring the bentonite into grinding equipment for grinding to obtain modified bentonite, and preparing the epoxy soybean oil modifier: getting epoxidized soybean oil, triphenylphosphine and ethanol, pouring the obtained product into a reaction kettle, raising the temperature to 132 ℃, raising the stirring speed to 70r/min, and reacting at constant temperature for 5 hours to obtain an epoxidized soybean oil modifier, wherein the preparation method of the modified titanium dioxide powder comprises the following steps: obtaining titanium dioxide, pouring the titanium dioxide into calcining equipment for calcining, grinding and crushing after calcining is completed, then pouring the titanium dioxide into ethanol for mixing and dispersing, then adding N, N, N-trimethylglycine and graphite powder, raising the temperature to 59 ℃, carrying out ultrasonic treatment for 15 minutes, then pouring deionized water for repeatedly cleaning, drying and then grinding to obtain modified titanium dioxide powder, wherein the preparation method of the modified mica powder comprises the following steps: obtaining mica powder, pouring the mica powder into hydrogen peroxide for mixing, pouring the mixture into grinding equipment for grinding after uniform mixing, pouring deionized water for cleaning after grinding for 1 hour, and drying to obtain modified mica powder, wherein the preparation method of the modified starch comprises the following steps: and (2) taking plant starch, sodium chloride and deionized water, pouring the plant starch, the sodium chloride and the deionized water into a reaction kettle, raising the temperature to 81 ℃, raising the stirring speed to 180r/min, stirring for 15 minutes, drying and grinding to obtain the modified starch.
A preparation method of a glass fiber reinforced plastic pipe comprises the following steps:
s1: mixing glass fiber, modified titanium dioxide powder, a silane coupling agent and a hydrogen peroxide solution, raising the temperature to 61 ℃, raising the stirring speed to 150r/min, starting ultrasonic treatment for 5 minutes after uniform stirring, and drying to obtain a material of a glass fiber layer 2;
s2: pouring polyethylene resin, polypropylene resin, a phosphorus antioxidant, stearate, modified bentonite and an epoxidized soybean oil modifier into a high-speed mixer for stirring and mixing, raising the temperature to 131 ℃, raising the stirring speed to 70r/min, and injecting inert gas for protection to obtain a material of the plastic layer 1;
s3: taking a part of the material of the plastic layer 1, adding phenyl salicylate and modified mica powder, and heating and mixing to obtain the material of the outer pipe layer 4;
s4: then, a part of the material of the plastic layer 1 is obtained, modified starch and activated carbon are added, and heating and mixing are carried out, so that the material of the inner pipe layer 3 is obtained;
s5: taking a mold, rotating the mold, and pouring the liquid material of the outer tube layer 4 until the material of the outer tube layer 4 is uniformly dispersed in the mold to obtain the outer tube layer 4;
s6: mixing the material of the plastic layer 1 with the material of the glass fiber, then pouring the mixture into a mold, and continuously rotating and dispersing to obtain the plastic layer 1 and the glass fiber layer 2;
s7: pouring the material of the inner pipe layer 3 into a mould, continuously rotating, dispersing to obtain the inner pipe layer 3, spraying hot water on the mould after the material in the mould performs exothermic reaction, keeping the temperature of the mould at 60 ℃ until the pipe is pulled out, and completely curing the obtained material to obtain the glass fiber reinforced plastic pipe.
Referring to FIGS. 1-2, example II
The embodiment provides a glass fiber reinforced plastic pipe which comprises a plastic layer 1, wherein a glass fiber layer 2 is filled in the plastic layer 1, an inner pipe layer 3 is bonded in the inner layer of the plastic layer 1, an outer pipe layer 4 is bonded on the surface of the plastic layer 1, the plastic layer 1 is made of 53 parts of polyethylene resin, 42 parts of polypropylene resin, 0.8 part of phosphorus antioxidant, 1.2 parts of stearate, 2 parts of modified bentonite and 1 part of epoxy soybean oil modifier, the glass fiber layer 2 is made of 40 parts of glass fiber, 3 parts of modified titanium dioxide powder, 0.3 part of silane coupling agent and 56.7 parts of hydrogen peroxide solution, the outer pipe layer 4 is made of materials including the plastic layer 1, phenyl salicylate and modified mica powder, the phenyl salicylate accounts for 2% of the total materials of the outer pipe layer 4, the modified mica powder accounts for 12% of the total materials of the outer pipe layer 4, and the inner pipe layer 3 is made of materials including the plastic layer 1, the inner pipe layer 3, the outer pipe layer 1, the outer pipe layer 4 and the inner pipe layer, Modified starch and activated carbon, the modified starch accounts for 11% of all materials of the inner pipe layer 3, the activated carbon accounts for 2% of all materials of the inner pipe layer 3, the preparation method of the modified bentonite comprises the following steps: obtaining bentonite, crushing the bentonite, pouring the bentonite into deionized water for mixing and dissolving, pouring the bentonite into centrifugal equipment, removing impurities in the slurry by centrifugation, purifying, pouring the slurry into a reaction kettle, adding 3% of caustic soda and 2% of sodium bicarbonate, raising the temperature to 71 ℃, raising the stirring speed to 290r/min, stirring for 1 hour, cooling and aging, taking out upper suspension after 1 hour, adding polyelectrolyte and stirring uniformly, carrying out heat preservation reaction, then precipitating, removing the upper suspension, injecting deionized water for cleaning, washing the polyelectrolyte, drying, finally pouring the bentonite into grinding equipment for grinding to obtain modified bentonite, and preparing the epoxy soybean oil modifier: getting epoxidized soybean oil, triphenylphosphine and ethanol, pouring the obtained product into a reaction kettle, raising the temperature to 132 ℃, raising the stirring speed to 70r/min, and reacting at constant temperature for 5 hours to obtain an epoxidized soybean oil modifier, wherein the preparation method of the modified titanium dioxide powder comprises the following steps: obtaining titanium dioxide, pouring the titanium dioxide into calcining equipment for calcining, grinding and crushing after calcining is completed, then pouring the titanium dioxide into ethanol for mixing and dispersing, then adding N, N, N-trimethylglycine and graphite powder, raising the temperature to 59 ℃, carrying out ultrasonic treatment for 15 minutes, then pouring deionized water for repeatedly cleaning, drying and then grinding to obtain modified titanium dioxide powder, wherein the preparation method of the modified mica powder comprises the following steps: obtaining mica powder, pouring the mica powder into hydrogen peroxide for mixing, pouring the mixture into grinding equipment for grinding after uniform mixing, pouring deionized water for cleaning after grinding for 1 hour, and drying to obtain modified mica powder, wherein the preparation method of the modified starch comprises the following steps: and (3) taking plant starch, sodium chloride and deionized water, pouring the plant starch, the sodium chloride and the deionized water into a reaction kettle, raising the temperature to 81 ℃, raising the stirring speed to 180r/min, stirring for 15 minutes, and drying and grinding to obtain the modified starch.
A preparation method of a glass fiber reinforced plastic pipe comprises the following steps:
s1: mixing the glass fiber, the modified titanium dioxide powder, the silane coupling agent and the hydrogen peroxide solution, raising the temperature to 61 ℃, raising the stirring speed to 150r/min, starting ultrasonic treatment for 5 minutes after uniform stirring, and drying to obtain a material of a glass fiber layer 2;
s2: pouring polyethylene resin, polypropylene resin, a phosphorus antioxidant, stearate, modified bentonite and an epoxidized soybean oil modifier into a high-speed mixer for stirring and mixing, raising the temperature to 131 ℃, raising the stirring speed to 70r/min, and injecting inert gas for protection to obtain a material of the plastic layer 1;
s3: taking a part of the material of the plastic layer 1, adding phenyl salicylate and modified mica powder, and heating and mixing to obtain the material of the outer pipe layer 4;
s4: then, taking a part of the material of the plastic layer 1, adding modified starch and activated carbon, and heating and mixing to obtain the material of the inner pipe layer 3;
s5: taking a mold, rotating the mold, and pouring the liquid material of the outer tube layer 4 until the material of the outer tube layer 4 is uniformly dispersed in the mold to obtain the outer tube layer 4;
s6: mixing the material of the plastic layer 1 with the material of the glass fiber, then pouring the mixture into a mold, and continuously rotating and dispersing to obtain the plastic layer 1 and the glass fiber layer 2;
s7: pouring the material of the inner pipe layer 3 into a mould, continuously rotating, dispersing to obtain the inner pipe layer 3, spraying hot water on the mould after the material in the mould performs exothermic reaction, keeping the temperature of the mould at 60 ℃ until the pipe is pulled out, and completely curing the obtained material to obtain the glass fiber reinforced plastic pipe.
Referring to FIGS. 1-2, example III
The embodiment provides a glass fiber reinforced plastic pipe which comprises a plastic layer 1, wherein a glass fiber layer 2 is filled in the plastic layer 1, an inner pipe layer 3 is bonded in the inner layer of the plastic layer 1, an outer pipe layer 4 is bonded on the surface of the plastic layer 1, the plastic layer 1 is made of 53 parts of polyethylene resin, 43 parts of polypropylene resin, 0.5 part of phosphorus antioxidant, 0.5 part of stearate, 2 parts of modified bentonite and 1 part of epoxy soybean oil modifier, the glass fiber layer 2 is made of 40 parts of glass fiber, 2.5 parts of modified titanium dioxide powder, 0.5 part of silane coupling agent and 57 parts of hydrogen peroxide solution, the outer pipe layer 4 is made of materials including the plastic layer 1, phenyl salicylate and modified mica powder, the phenyl salicylate accounts for 2% of the total materials of the outer pipe layer 4, the modified mica powder accounts for 12% of the total materials of the outer pipe layer 4, and the inner pipe layer 3 is made of materials including the plastic layer 1, the inner pipe layer 3, the outer pipe layer 1, the outer pipe layer 4 and the inner pipe layer, Modified starch and activated carbon, the modified starch accounts for 11% of all materials of the inner pipe layer 3, the activated carbon accounts for 2% of all materials of the inner pipe layer 3, the preparation method of the modified bentonite comprises the following steps: obtaining bentonite, pouring the bentonite into deionized water after crushing for mixing and dissolving, pouring the bentonite into centrifugal equipment for removing impurities in slurry by centrifugation, purifying, pouring the slurry into a reaction kettle, adding 3% of caustic soda and 2% of sodium bicarbonate, raising the temperature to 71 ℃, raising the stirring speed to 290r/min, stirring for 1 hour, cooling and aging, taking out the upper suspension after 1 hour, adding polyelectrolyte, stirring uniformly, carrying out heat preservation reaction, then precipitating, removing the upper suspension, injecting deionized water for cleaning, washing away the polyelectrolyte, drying, pouring the dried bentonite into grinding equipment for grinding, and obtaining the modified bentonite, wherein the preparation method of the epoxy soybean oil modifier comprises the following steps: getting epoxidized soybean oil, triphenylphosphine and ethanol, pouring the obtained product into a reaction kettle, raising the temperature to 132 ℃, raising the stirring speed to 70r/min, and reacting at constant temperature for 5 hours to obtain an epoxidized soybean oil modifier, wherein the preparation method of the modified titanium dioxide powder comprises the following steps: obtaining titanium dioxide, pouring the titanium dioxide into calcining equipment for calcining, grinding and crushing after calcining is completed, then pouring the titanium dioxide into ethanol for mixing and dispersing, then adding N, N, N-trimethylglycine and graphite powder, raising the temperature to 59 ℃, carrying out ultrasonic treatment for 15 minutes, then pouring deionized water for repeatedly cleaning, drying and then grinding to obtain modified titanium dioxide powder, wherein the preparation method of the modified mica powder comprises the following steps: obtaining mica powder, pouring the mica powder into hydrogen peroxide for mixing, pouring the mixture into grinding equipment for grinding after uniform mixing, pouring deionized water for cleaning after grinding for 1 hour, and drying to obtain modified mica powder, wherein the preparation method of the modified starch comprises the following steps: and (3) taking plant starch, sodium chloride and deionized water, pouring the plant starch, the sodium chloride and the deionized water into a reaction kettle, raising the temperature to 81 ℃, raising the stirring speed to 180r/min, stirring for 15 minutes, and drying and grinding to obtain the modified starch.
A preparation method of a glass fiber reinforced plastic pipe comprises the following steps:
s1: mixing glass fiber, modified titanium dioxide powder, a silane coupling agent and a hydrogen peroxide solution, raising the temperature to 61 ℃, raising the stirring speed to 150r/min, starting ultrasonic treatment for 5 minutes after uniform stirring, and drying to obtain a material of a glass fiber layer 2;
s2: pouring polyethylene resin, polypropylene resin, a phosphorus antioxidant, stearate, modified bentonite and an epoxidized soybean oil modifier into a high-speed mixer for stirring and mixing, raising the temperature to 131 ℃, raising the stirring speed to 70r/min, and injecting inert gas for protection to obtain a material of the plastic layer 1;
s3: taking a part of the material of the plastic layer 1, adding phenyl salicylate and modified mica powder, and heating and mixing to obtain the material of the outer pipe layer 4;
s4: then, taking a part of the material of the plastic layer 1, adding modified starch and activated carbon, and heating and mixing to obtain the material of the inner pipe layer 3;
s5: taking a mold, rotating the mold, and pouring the liquid material of the outer tube layer 4 until the material of the outer tube layer 4 is uniformly dispersed in the mold to obtain the outer tube layer 4;
s6: mixing the material of the plastic layer 1 with the material of the glass fiber, then pouring the mixture into a mold, and continuously rotating and dispersing to obtain the plastic layer 1 and the glass fiber layer 2;
s7: pouring the material of the inner pipe layer 3 into a mould, continuously rotating, dispersing to obtain the inner pipe layer 3, spraying hot water on the mould after the material in the mould performs exothermic reaction, keeping the temperature of the mould at 60 ℃ until the pipe is pulled out, and completely curing the obtained material to obtain the glass fiber reinforced plastic pipe.
Referring to FIGS. 1-2, example No. four
The embodiment provides a glass fiber reinforced plastic pipe which comprises a plastic layer 1, wherein a glass fiber layer 2 is filled in the plastic layer 1, an inner pipe layer 3 is bonded in the inner layer of the plastic layer 1, an outer pipe layer 4 is bonded on the surface of the plastic layer 1, the plastic layer 1 is made of 54 parts of polyethylene resin, 41 parts of polypropylene resin, 0.7 part of phosphorus antioxidant, 1.3 parts of stearate, 2 parts of modified bentonite and 1 part of epoxy soybean oil modifier, the glass fiber layer 2 is made of 39 parts of glass fiber, 2 parts of modified titanium dioxide powder, 0.4 part of silane coupling agent and 58.6 parts of hydrogen peroxide solution, the outer pipe layer 4 is made of materials including the plastic layer 1, phenyl salicylate and modified mica powder, the phenyl salicylate accounts for 2% of the total materials of the outer pipe layer 4, the modified mica powder accounts for 12% of the total materials of the outer pipe layer 4, and the inner pipe layer 3 is made of materials including the plastic layer 1, the inner pipe layer 3, the outer pipe layer 4 and the outer pipe layer 4, Modified starch and activated carbon, the modified starch accounts for 11% of all materials of the inner pipe layer 3, the activated carbon accounts for 2% of all materials of the inner pipe layer 3, the preparation method of the modified bentonite comprises the following steps: obtaining bentonite, crushing the bentonite, pouring the bentonite into deionized water for mixing and dissolving, pouring the bentonite into centrifugal equipment, removing impurities in the slurry by centrifugation, purifying, pouring the slurry into a reaction kettle, adding 3% of caustic soda and 2% of sodium bicarbonate, raising the temperature to 71 ℃, raising the stirring speed to 290r/min, stirring for 1 hour, cooling and aging, taking out upper suspension after 1 hour, adding polyelectrolyte and stirring uniformly, carrying out heat preservation reaction, then precipitating, removing the upper suspension, injecting deionized water for cleaning, washing the polyelectrolyte, drying, finally pouring the bentonite into grinding equipment for grinding to obtain modified bentonite, and preparing the epoxy soybean oil modifier: getting epoxidized soybean oil, triphenylphosphine and ethanol, pouring the obtained product into a reaction kettle, raising the temperature to 132 ℃, raising the stirring speed to 70r/min, and reacting at constant temperature for 5 hours to obtain an epoxidized soybean oil modifier, wherein the preparation method of the modified titanium dioxide powder comprises the following steps: obtaining titanium dioxide, pouring the titanium dioxide into a calcining device for calcining, grinding and crushing after the calcining is finished, then pouring the titanium dioxide into ethanol for mixing and dispersing, then adding N, N, N-trimethylglycine and graphite powder, raising the temperature to 59 ℃, carrying out ultrasonic treatment for 15 minutes, then pouring deionized water for repeatedly cleaning, drying and then grinding to obtain modified titanium dioxide powder, wherein the preparation method of the modified mica powder comprises the following steps: obtaining mica powder, pouring the mica powder into hydrogen peroxide for mixing, pouring the mixture into grinding equipment for grinding after uniform mixing, pouring deionized water for cleaning after grinding for 1 hour, and drying to obtain modified mica powder, wherein the preparation method of the modified starch comprises the following steps: and (3) taking plant starch, sodium chloride and deionized water, pouring the plant starch, the sodium chloride and the deionized water into a reaction kettle, raising the temperature to 81 ℃, raising the stirring speed to 180r/min, stirring for 15 minutes, and drying and grinding to obtain the modified starch.
A preparation method of a glass fiber reinforced plastic pipe comprises the following steps:
s1: mixing glass fiber, modified titanium dioxide powder, a silane coupling agent and a hydrogen peroxide solution, raising the temperature to 61 ℃, raising the stirring speed to 150r/min, starting ultrasonic treatment for 5 minutes after uniform stirring, and drying to obtain a material of a glass fiber layer 2;
s2: pouring polyethylene resin, polypropylene resin, a phosphorus antioxidant, stearate, modified bentonite and an epoxidized soybean oil modifier into a high-speed mixer for stirring and mixing, raising the temperature to 131 ℃, raising the stirring speed to 70r/min, and injecting inert gas for protection to obtain a material of the plastic layer 1;
s3: taking a part of the material of the plastic layer 1, adding phenyl salicylate and modified mica powder, and heating and mixing to obtain the material of the outer pipe layer 4;
s4: then, a part of the material of the plastic layer 1 is obtained, modified starch and activated carbon are added, and heating and mixing are carried out, so that the material of the inner pipe layer 3 is obtained;
s5: taking a mold, rotating the mold, and pouring the liquid material of the outer tube layer 4 until the material of the outer tube layer 4 is uniformly dispersed in the mold to obtain the outer tube layer 4;
s6: mixing the material of the plastic layer 1 with the material of the glass fiber, then pouring the mixture into a mold, and continuously rotating and dispersing to obtain the plastic layer 1 and the glass fiber layer 2;
s7: pouring the material of the inner pipe layer 3 into a mould, continuously rotating, dispersing to obtain the inner pipe layer 3, spraying hot water on the mould after the material in the mould performs exothermic reaction, keeping the temperature of the mould at 60 ℃ until the pipe is pulled out, and completely curing the obtained material to obtain the glass fiber reinforced plastic pipe.
Referring to FIGS. 1-2, example V
The embodiment provides a glass fiber reinforced plastic pipe which comprises a plastic layer 1, wherein a glass fiber layer 2 is filled in the plastic layer 1, an inner pipe layer 3 is bonded in the inner layer of the plastic layer 1, an outer pipe layer 4 is bonded on the surface of the plastic layer 1, the plastic layer 1 is made of 55 parts of polyethylene resin, 40 parts of polypropylene resin, 0.5 part of phosphorus antioxidant, 0.5 part of stearate, 2 parts of modified bentonite and 2 parts of epoxy soybean oil modifier, the glass fiber layer 2 is made of 45 parts of glass fiber, 4.5 parts of modified titanium dioxide powder, 0.5 part of silane coupling agent and 50 parts of hydrogen peroxide solution, the outer pipe layer 4 is made of a material of the plastic layer 1, phenyl salicylate and modified mica powder, the phenyl salicylate accounts for 2% of the total material of the outer pipe layer 4, the modified mica powder accounts for 12% of the total material of the outer pipe layer 4, and the inner pipe layer 3 is made of a material of the plastic layer 1, the inner pipe layer 3 and the outer pipe layer 4, Modified starch and activated carbon, the modified starch accounts for 11% of all materials of the inner pipe layer 3, the activated carbon accounts for 2% of all materials of the inner pipe layer 3, the preparation method of the modified bentonite comprises the following steps: obtaining bentonite, crushing the bentonite, pouring the bentonite into deionized water for mixing and dissolving, pouring the bentonite into centrifugal equipment, removing impurities in the slurry by centrifugation, purifying, pouring the slurry into a reaction kettle, adding 3% of caustic soda and 2% of sodium bicarbonate, raising the temperature to 71 ℃, raising the stirring speed to 290r/min, stirring for 1 hour, cooling and aging, taking out upper suspension after 1 hour, adding polyelectrolyte and stirring uniformly, carrying out heat preservation reaction, then precipitating, removing the upper suspension, injecting deionized water for cleaning, washing the polyelectrolyte, drying, finally pouring the bentonite into grinding equipment for grinding to obtain modified bentonite, and preparing the epoxy soybean oil modifier: getting epoxidized soybean oil, triphenylphosphine and ethanol, pouring the obtained product into a reaction kettle, raising the temperature to 132 ℃, raising the stirring speed to 70r/min, and reacting at constant temperature for 5 hours to obtain an epoxidized soybean oil modifier, wherein the preparation method of the modified titanium dioxide powder comprises the following steps: obtaining titanium dioxide, pouring the titanium dioxide into calcining equipment for calcining, grinding and crushing after calcining is completed, then pouring the titanium dioxide into ethanol for mixing and dispersing, then adding N, N, N-trimethylglycine and graphite powder, raising the temperature to 59 ℃, carrying out ultrasonic treatment for 15 minutes, then pouring deionized water for repeatedly cleaning, drying and then grinding to obtain modified titanium dioxide powder, wherein the preparation method of the modified mica powder comprises the following steps: obtaining mica powder, pouring the mica powder into hydrogen peroxide for mixing, pouring the mixture into grinding equipment for grinding after uniform mixing, pouring deionized water for cleaning after grinding for 1 hour, and drying to obtain modified mica powder, wherein the preparation method of the modified starch comprises the following steps: and (3) taking plant starch, sodium chloride and deionized water, pouring the plant starch, the sodium chloride and the deionized water into a reaction kettle, raising the temperature to 81 ℃, raising the stirring speed to 180r/min, stirring for 15 minutes, and drying and grinding to obtain the modified starch.
A preparation method of a glass fiber reinforced plastic pipe comprises the following steps:
s1: mixing glass fiber, modified titanium dioxide powder, a silane coupling agent and a hydrogen peroxide solution, raising the temperature to 61 ℃, raising the stirring speed to 150r/min, starting ultrasonic treatment for 5 minutes after uniform stirring, and drying to obtain a material of a glass fiber layer 2;
s2: pouring polyethylene resin, polypropylene resin, a phosphorus antioxidant, stearate, modified bentonite and an epoxidized soybean oil modifier into a high-speed mixer for stirring and mixing, raising the temperature to 131 ℃, raising the stirring speed to 70r/min, and injecting inert gas for protection to obtain a material of the plastic layer 1;
s3: taking a part of the material of the plastic layer 1, adding phenyl salicylate and modified mica powder, and heating and mixing to obtain the material of the outer pipe layer 4;
s4: then, a part of the material of the plastic layer 1 is obtained, modified starch and activated carbon are added, and heating and mixing are carried out, so that the material of the inner pipe layer 3 is obtained;
s5: taking a mold, rotating the mold, and pouring the liquid material of the outer tube layer 4 until the material of the outer tube layer 4 is uniformly dispersed in the mold to obtain the outer tube layer 4;
s6: mixing the material of the plastic layer 1 with the material of the glass fiber, then pouring the mixture into a mold, and continuously rotating and dispersing to obtain the plastic layer 1 and the glass fiber layer 2;
s7: pouring the material of the inner pipe layer 3 into a mould, continuously rotating, dispersing to obtain the inner pipe layer 3, spraying hot water on the mould after the material in the mould performs exothermic reaction, keeping the temperature of the mould at 60 ℃ until the pipe is pulled out, and completely curing the obtained material to obtain the glass fiber reinforced plastic pipe.
Comparing the conventional plastic pipes with the plastic pipes prepared in examples one to five, the plastic pipes prepared in examples one to five are as follows:
from the above table, it can be seen that the plastic pipe prepared by the present invention has significantly improved joint strength, is not prone to delamination and bulging, has significantly reduced tensile strength change rate, and is the best embodiment.
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 as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (10)
1. The glass fiber reinforced plastic pipe comprises a plastic layer (1), and is characterized in that a glass fiber layer (2) is filled in the plastic layer (1), an inner pipe layer (3) is bonded to the inner layer of the plastic layer (1), an outer pipe layer (4) is bonded to the surface of the plastic layer (1), the plastic layer (1) is made of 50-55 parts of polyethylene resin, 40-45 parts of polypropylene resin, 0.5-1 part of phosphorus antioxidant, 0.5-1.5 parts of stearate, 1-5 parts of modified bentonite and 1-5 parts of epoxy soybean oil modifier, the glass fiber layer (2) is made of 35-45 parts of glass fiber, 1-5 parts of modified titanium dioxide powder, 0.1-0.5 part of silane coupling agent and 50-65 parts of hydrogen peroxide solution, and the outer pipe layer (4) is made of materials including the material of the plastic layer (1), Phenyl salicylate accounts for 1-5% of the total material of the outer pipe layer (4), modified mica powder accounts for 10-15% of the total material of the outer pipe layer (4), the material of the inner pipe layer (3) comprises the material of the plastic layer (1), modified starch and activated carbon, the modified starch accounts for 8-13% of the total material of the inner pipe layer (3), and the activated carbon accounts for 1-3% of the total material of the inner pipe layer (3).
2. A glass-fibre-reinforced plastic pipe according to claim 1, characterized in that the modified bentonite is prepared by a process comprising: obtaining bentonite, crushing the bentonite, pouring the bentonite into deionized water for mixing and dissolving, pouring the bentonite into centrifugal equipment, removing impurities in the slurry by centrifugation, purifying, pouring the slurry into a reaction kettle, adding 3% of caustic soda and 2% of sodium bicarbonate, raising the temperature to 65-75 ℃, raising the stirring speed to 240-320 r/min, stirring for 1 hour, cooling and aging, removing the upper suspension after 1 hour, adding polyelectrolyte, stirring uniformly, carrying out heat preservation reaction, then carrying out precipitation, removing the upper suspension, injecting deionized water for cleaning, washing away the polyelectrolyte, drying, and finally pouring the mixture into grinding equipment for grinding to obtain the modified bentonite.
3. A glass fibre reinforced plastic pipe according to claim 1 wherein the epoxy soybean oil modifier is prepared by a process comprising: getting epoxidized soybean oil, triphenylphosphine and ethanol, pouring the obtained product into a reaction kettle, raising the temperature to 125-135 ℃, raising the stirring speed to 60-120 r/min, and reacting at constant temperature for 5 hours to obtain the epoxidized soybean oil modifier.
4. A glass-fibre-reinforced plastic pipe according to claim 1, wherein the modified titanium dioxide powder is prepared by a process comprising: and (2) obtaining titanium dioxide, pouring the titanium dioxide into calcining equipment for calcining, grinding and crushing after calcining is completed, then pouring the titanium dioxide into ethanol for mixing and dispersing, then adding N, N, N-trimethylglycine and graphite powder, raising the temperature to 55-65 ℃, carrying out ultrasonic treatment for 15 minutes, then pouring deionized water for repeatedly cleaning, drying and grinding to obtain modified titanium dioxide powder.
5. The glass fiber reinforced plastic tube according to claim 1, wherein the preparation method of the modified mica powder comprises the following steps: and (3) obtaining mica powder, pouring the mica powder into hydrogen peroxide for mixing, pouring the mixture into grinding equipment for grinding after uniform mixing, pouring deionized water for cleaning after grinding for 1 hour, and drying to obtain the modified mica powder.
6. A glass-fibre-reinforced plastic pipe according to claim 1, wherein the modified starch is prepared by a process comprising: obtaining plant starch, sodium chloride and deionized water, pouring the plant starch, the sodium chloride and the deionized water into a reaction kettle, raising the temperature to 75-85 ℃, raising the stirring speed to 120-240 r/min, stirring for 15 minutes, drying and grinding to obtain the modified starch.
7. The preparation method of the glass fiber reinforced plastic pipe is characterized by comprising the following steps of:
s1: mixing glass fiber, modified titanium dioxide powder, a silane coupling agent and a hydrogen peroxide solution, and drying to obtain a material of the glass fiber layer (2);
s2: pouring polyethylene resin, polypropylene resin, a phosphorus antioxidant, stearate, modified bentonite and an epoxidized soybean oil modifier into a high-speed mixer, and stirring and mixing to obtain a material of the plastic layer (1);
s3: taking a part of the material of the plastic layer (1), adding phenyl salicylate and modified mica powder, and heating and mixing to obtain the material of the outer pipe layer (4);
s4: then, a part of the material of the plastic layer (1) is obtained, modified starch and activated carbon are added, and the materials are heated and mixed to obtain the material of the inner pipe layer (3);
s5: taking a mould, rotating the mould, pouring the liquid material of the outer pipe layer (4) until the material of the outer pipe layer (4) is uniformly dispersed in the mould to obtain the outer pipe layer (4);
s6: mixing the material of the plastic layer (1) with the material of the glass fiber, then pouring the mixture into a mold, and continuously rotating and dispersing to obtain the plastic layer (1) and the glass fiber layer (2);
s7: and pouring the material of the inner pipe layer (3) into a mould, continuously rotating, dispersing to obtain the inner pipe layer (3), and completely curing the obtained material to obtain the glass fiber reinforced plastic pipe.
8. The method for preparing a glass fiber reinforced plastic pipe according to claim 7, wherein in the step of S1, the temperature is raised to 55-65 ℃, the stirring speed is raised to 120-240 r/min, and the ultrasonic treatment is started for 5 minutes after the stirring is uniform.
9. The method of claim 7, wherein in the step of S2, the temperature is raised to 125-135 ℃, the stirring speed is raised to 60-80 r/min, and inert gas is injected for protection.
10. A method of manufacturing a glass fiber reinforced plastic pipe according to claim 7, wherein in the step of S7, after the exothermic reaction of the material inside the mold, the mold is sprayed with hot water so that the temperature of the mold is maintained at 60 ℃ until the pipe is drawn out.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115678106A (en) * | 2022-11-15 | 2023-02-03 | 然石功能材料(江苏)有限公司 | Low-temperature-resistant pipe plastic additive |
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Application publication date: 20220930 |