CN112980082B - Socket joint type polyethylene solid wall drain pipe - Google Patents
Socket joint type polyethylene solid wall drain pipe Download PDFInfo
- Publication number
- CN112980082B CN112980082B CN202110299697.7A CN202110299697A CN112980082B CN 112980082 B CN112980082 B CN 112980082B CN 202110299697 A CN202110299697 A CN 202110299697A CN 112980082 B CN112980082 B CN 112980082B
- Authority
- CN
- China
- Prior art keywords
- polyethylene
- parts
- stirring
- prepare
- drain pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Epoxy Resins (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a socket type polyethylene solid-wall drain pipe which comprises a pipe body and a socket connecting sleeve, wherein the pipe body comprises the following raw materials in parts by weight: 35-50 parts of polyethylene, 10-20 parts of auxiliary material resin, 5-15 parts of composite filler, 0.5-1 part of coupling agent, 1-5 parts of plasticizer, 0.1-0.5 part of antioxidant and 5-10 parts of nano silicon dioxide; step one, uniformly mixing auxiliary material resin and composite filler, and stirring at a constant speed for 2 hours to prepare a primary material for later use; uniformly mixing the nano silicon dioxide and the coupling agent; secondly, uniformly mixing the primary material, the nano silicon dioxide treated by the coupling agent, the plasticizer, the antioxidant and the polyethylene to prepare a material, adding the material into a double-screw extruder for extrusion granulation, and processing and forming to prepare the spigot-and-socket polyethylene solid-wall drain pipe; the mixture can be melt-extruded with a raw material such as polyethylene to provide a polyethylene pipe with excellent corrosion resistance.
Description
Technical Field
The invention belongs to the technical field of high polymer materials, and particularly relates to a socket type polyethylene solid wall drain pipe.
Background
The pipeline transportation is an infrastructure for guaranteeing normal production and life of the society and promoting economic prosperity. The traditional drainage pipe is difficult to adapt to the requirement of rapid development of cities due to inherent characteristics, so that novel plastic pipes, such as High Density Polyethylene (HDPE) winding pipes, HDPE double-wall corrugated pipes and the like, are generated, and the performance and the construction difficulty of the traditional drainage pipe are superior to those of traditional cast iron pipes, steel pipes and cement pipes. Therefore, the plastic pipe gradually replaces the conventional pipe and obtains high speed hair. When the polyethylene pipe is used for a drain pipe, the polyethylene pipe is required to have excellent corrosion resistance no matter exposed in air or buried in soil, the drain pipe is prevented from being damaged and influencing the use due to long-term use, and the socket type structure has extremely high requirements on the mechanical property of the drain pipe.
Disclosure of Invention
In order to overcome the technical problem, the invention provides a socket type polyethylene solid wall drain pipe.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a real wall drain pipe of socket joint formula polyethylene, includes body and socket joint adapter sleeve, and body one end is connected with the socket joint adapter sleeve, its characterized in that, the body includes following part by weight raw materials: 35-50 parts of polyethylene, 10-20 parts of auxiliary material resin, 5-15 parts of composite filler, 0.5-1 part of coupling agent, 1-5 parts of plasticizer, 0.1-0.5 part of antioxidant and 5-10 parts of nano silicon dioxide;
the pipe body comprises the following steps:
step one, uniformly mixing auxiliary material resin and composite filler, and uniformly stirring at a rotating speed of 50-80r/min for 2 hours to prepare a primary material for later use; uniformly mixing the nano silicon dioxide and the coupling agent, and uniformly stirring for 30min at 100-110 ℃ for later use;
and secondly, uniformly mixing the primary material, the nano silicon dioxide treated by the coupling agent, the plasticizer, the antioxidant and the polyethylene to obtain a material, adding the material into a double-screw extruder to extrude and granulate, and processing and forming to obtain the pipe body.
Further, the coupling agent is any one of KH560 and KH570, the antioxidant is any one of antioxidant 168 and antioxidant 1010, and the plasticizer is any one of dioctyl phthalate and dibutyl phthalate.
Further, the auxiliary material resin is prepared by the following steps:
step S1, sequentially adding bisphenol A and epichlorohydrin into a three-neck flask, introducing nitrogen, heating in a water bath at 35-50 ℃, stirring at a constant speed of 120r/min at 100-, reacting for 2 hours at the temperature, washing for 3 times by using deionized water, standing for layering, collecting an organic phase, distilling under reduced pressure until no fraction appears to prepare an intermediate 1, controlling the weight ratio of bisphenol A to epichlorohydrin to be 1: 5, the weight ratio of bisphenol A to 1, 6-hexamethylene diisocyanate to be 5:1, and the weight ratio of bisphenol A to sodium hydroxide solution to be 3: 1.5-2;
and S2, adding the intermediate 1 prepared in the step S1 into a reaction kettle, adding tetrabutyl ammonium bromide, heating in a water bath at 45-60 ℃, uniformly stirring at a rotation speed of 100-.
Step S1, mixing bisphenol A and 1, 6-hexamethylene diisocyanate in epoxy chloropropane, reacting the bisphenol A and the 1, 6-hexamethylene diisocyanate to generate an intermediate, and reacting the intermediate with epoxy chloropropane under the action of sodium hydroxide to generate epoxy resin, wherein one part of the epoxy chloropropane is used as a solvent, the other part of the epoxy chloropropane can be used as a reactant to prepare an intermediate 1, and the intermediate 1 is waterborne polyurethane; and step S2, introducing carbon dioxide into the prepared intermediate 1 in a reaction kettle, adding tetrabutylammonium bromide as a catalyst, and preparing a mixture, wherein the mixture is a mixture of water-based epoxy resin and cyclic carbonate, and when the mixture is melted and extruded with polyethylene and other raw materials, the polyethylene pipe can be endowed with excellent corrosion resistance.
Further, the composite filler is prepared by the following steps:
step S11, adding succinic anhydride into N, N-dimethylacetamide, heating in a water bath at 45-65 ℃, stirring at a constant speed for 30min, adding diethanolamine, continuing stirring for 30min, heating to 110 ℃, adding toluene, stirring at a constant speed, reacting for 6h, removing the solvent by reduced pressure distillation after the reaction is finished, vacuum-drying at 75 ℃ for 10h to obtain a product a, and controlling the dosage ratio of succinic anhydride to N, N-dimethylacetamide to diethanolamine to be 1 g: 5 mL;
step S12, adding epoxy chloropropane and tetrahydrofuran into a three-neck flask in sequence, mixing uniformly to obtain a mixed solution A, dropwise adding the mixed solution A into a product a, controlling the dropwise adding time to be 15min, introducing nitrogen during the dropwise adding process and reacting for 2h to obtain a crude product, washing the crude product three times with methyl acrylate, centrifuging for 3min after washing is finished, transferring the washed crude product into a vacuum drying oven, drying for 10h at-0.10 MPa and 75 ℃ to obtain the composite filler, and controlling the dosage ratio of epoxy chloropropane to tetrahydrofuran to the product a to be 5 g: 10 mL: 1 g.
Mixing succinic anhydride and diethanol amine in N, N-dimethyl acetamide in step S11, reacting succinic anhydride and diethanol amine to prepare a monomer, then preparing a product a through polycondensation reaction between the monomers, wherein the product a is a hyperbranched polymer with a terminal containing hydroxyl, then mixing the product a with epoxy chloropropane in step S12, and taking the epoxy chloropropane as a capping agent to prepare a polymer, wherein the polymer is a hyperbranched polymer with a terminal active group being an epoxy group, and the epoxy group can perform a ring-opening reaction with nucleophilic reagents such as a primary amino group or a hydroxyl group.
Further, the conditions of the reaction extrusion through the double-screw extruder in the second step are that the temperature of the extruder is 130 ℃ and 210 ℃, and the length-diameter ratio of the screw is not less than 45: 1.
The invention has the beneficial effects that:
the invention relates to a socket type polyethylene solid-wall drain pipe, which comprises a pipe body and a socket connecting sleeve, wherein one end of the pipe body is connected with the socket connecting sleeve, the pipe body is matched with the socket connecting sleeve, the pipe body is prepared from polyethylene, auxiliary material resin, composite filler and other raw materials, the auxiliary material resin is prepared by mixing bisphenol A and 1, 6-hexamethylene diisocyanate in step S1 in the preparation process, the bisphenol A and the 1, 6-hexamethylene diisocyanate react to generate an intermediate, then the intermediate reacts with epoxy chloropropane under the action of sodium hydroxide to generate epoxy resin, one part of the epoxy chloropropane is used as a solvent, the other part of the epoxy chloropropane can be used as a reactant to prepare an intermediate 1, and the intermediate 1 is waterborne polyurethane; step S2, introducing carbon dioxide into the prepared intermediate 1 in a reaction kettle, adding tetrabutylammonium bromide as a catalyst to prepare a mixture, wherein the mixture is a mixture of water-based epoxy resin and cyclic carbonate, and when the mixture is melted and extruded with polyethylene and other raw materials, the polyethylene pipe can be endowed with excellent corrosion resistance;
the invention also provides a composite filler, succinic anhydride and diethanol amine are mixed in N, N-dimethylacetamide in step S11, monomers are prepared by reaction between succinic anhydride and diethanol amine, then a product a is prepared by polycondensation reaction between the monomers, the product a is a hyperbranched polymer with the terminal containing hydroxyl, then the product a is mixed with epoxy chloropropane in step S12, epoxy chloropropane is used as a capping agent to prepare a polymer, the polymer is a hyperbranched polymer with the terminal active group being epoxy group, the epoxy group can perform ring-opening reaction with nucleophilic reagents such as primary amino group or hydroxyl group, when the composite filler is blended with auxiliary material resin, the auxiliary material resin is a mixture of water-based epoxy resin and cyclic carbonate, the polymer can be easily applied to the network skeleton of a subsequent curing system of the water-based epoxy resin, so that the curing system can play roles of dispersing stress and bearing stress when being impacted, endows the prepared drain pipe with excellent mechanical property.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view of a socket type polyethylene solid wall drainage pipe according to the present invention.
In the figure: 1. a pipe body; 2. socket joint cover.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The utility model provides a real wall drain pipe of socket joint formula polyethylene, its characterized in that, includes body 1 and socket joint adapter sleeve 2, and 1 one end of body is connected with socket joint adapter sleeve 2, its characterized in that, body 1 includes following part by weight raw materials: 35 parts of polyethylene, 10 parts of auxiliary material resin, 5 parts of composite filler, 0.5 part of KH560, 1 part of dioctyl phthalate, 0.1 part of antioxidant 1010 and 5 parts of nano silicon dioxide;
the socket type polyethylene solid-wall drain pipe 1 comprises the following steps:
step one, uniformly mixing auxiliary material resin and composite filler, and uniformly stirring at a rotating speed of 50r/min for 2 hours to prepare a primary material for later use; uniformly mixing nano silicon dioxide and KH560, and uniformly stirring at 100 ℃ for 30min for later use;
and secondly, uniformly mixing the primary material, the nano silicon dioxide treated by the coupling agent, the dioctyl phthalate, the antioxidant 1010 and the polyethylene to obtain a material, adding the material into a double-screw extruder for extrusion granulation, and processing and forming to obtain the spigot-and-socket polyethylene solid-wall drain pipe.
The auxiliary material resin is prepared by the following steps:
step S1, sequentially adding bisphenol A and epichlorohydrin into a three-neck flask, introducing nitrogen, heating in a 35 ℃ water bath, uniformly stirring and dropwise adding 1, 6-hexamethylene diisocyanate at a rotating speed of 100r/min, controlling the dropwise adding time to be 30min, uniformly stirring and reacting for 2h, then heating to 60 ℃, slowly dropwise adding a sodium hydroxide solution with the mass fraction of 20%, controlling the dropwise adding time to be 15min, reacting for 2h at the temperature, washing for 3 times with deionized water, standing and layering, collecting an organic phase, and carrying out reduced pressure distillation until no fraction appears to prepare an intermediate 1, wherein the weight ratio of the bisphenol A to the epichlorohydrin is controlled to be 1: 5, the weight ratio of the bisphenol A to the 1, 6-hexamethylene diisocyanate is controlled to be 5:1, and the weight ratio of the bisphenol A to the sodium hydroxide solution is 3: 1.5;
and S2, adding the intermediate 1 prepared in the step S1 into a reaction kettle, adding tetrabutyl ammonium bromide, heating in a water bath at 45 ℃, uniformly stirring at a rotating speed of 100r/min for 30min, keeping the temperature, introducing carbon dioxide until the pressure of the carbon dioxide is 1.5MPa, heating to 80 ℃, uniformly stirring after the pressure is stabilized, reacting for 4h, cooling to room temperature after the reaction is finished, discharging the gas in the reaction kettle to prepare a primary material, extracting the redundant catalyst from the prepared primary material by ethyl acetate, standing, separating an oil layer, and performing reduced pressure dehydration to prepare an auxiliary material resin, wherein the using amount of the tetrabutyl ammonium bromide is controlled to be 1% of the mass of the intermediate 1.
The composite filler is prepared by the following steps:
step S11, adding succinic anhydride into N, N-dimethylacetamide, heating in a water bath at 45 ℃, stirring at a constant speed for 30min, adding diethanolamine, continuing stirring for 30min, heating to 110 ℃, adding toluene, stirring at a constant speed, reacting for 6h, distilling under reduced pressure after the reaction is finished to remove the solvent, vacuum-drying at 75 ℃ for 10h to obtain a product a, and controlling the dosage ratio of succinic anhydride to N, N-dimethylacetamide to diethanolamine to be 1 g: 5 mL;
step S12, adding epoxy chloropropane and tetrahydrofuran into a three-neck flask in sequence, mixing uniformly to obtain a mixed solution A, dropwise adding the mixed solution A into a product a, controlling the dropwise adding time to be 15min, introducing nitrogen during the dropwise adding process and reacting for 2h to obtain a crude product, washing the crude product three times with methyl acrylate, centrifuging for 3min after washing is finished, transferring the washed crude product into a vacuum drying oven, drying for 10h at-0.10 MPa and 75 ℃ to obtain the composite filler, and controlling the dosage ratio of epoxy chloropropane to tetrahydrofuran to the product a to be 5 g: 10 mL: 1 g.
Example 2
The utility model provides a real wall drain pipe of socket joint formula polyethylene, its characterized in that, includes body 1 and socket joint adapter sleeve 2, and 1 one end of body is connected with socket joint adapter sleeve 2, its characterized in that, body 1 includes following part by weight raw materials: 40 parts of polyethylene, 12 parts of auxiliary material resin, 10 parts of composite filler, 0.8 part of KH560, 2 parts of dioctyl phthalate, 0.2 part of antioxidant 1010 and 6 parts of nano silicon dioxide;
the socket type polyethylene solid-wall drain pipe 1 comprises the following steps:
step one, uniformly mixing auxiliary material resin and composite filler, and uniformly stirring at a rotating speed of 50r/min for 2 hours to prepare a primary material for later use; uniformly mixing nano silicon dioxide and KH560, and uniformly stirring at 100 ℃ for 30min for later use;
and secondly, uniformly mixing the primary material, the nano silicon dioxide treated by the coupling agent, the dioctyl phthalate, the antioxidant 1010 and the polyethylene to obtain a material, adding the material into a double-screw extruder for extrusion granulation, and processing and forming to obtain the spigot-and-socket polyethylene solid-wall drain pipe.
The auxiliary material resin is prepared by the following steps:
step S1, sequentially adding bisphenol A and epichlorohydrin into a three-neck flask, introducing nitrogen, heating in a water bath at 35 ℃, uniformly stirring and dripping 1, 6-hexamethylene diisocyanate at a rotating speed of 100r/min, controlling the dripping time to be 30min, uniformly stirring and reacting for 2h, then heating to 60 ℃, slowly dripping 20% by mass of sodium hydroxide solution, controlling the dripping time to be 15min, reacting for 2h at the temperature, then washing with deionized water for 3 times, standing and layering, collecting an organic phase, distilling under reduced pressure until no fraction appears, preparing an intermediate 1, controlling the weight ratio of bisphenol A to epichlorohydrin to be 1: 5, the weight ratio of bisphenol A to 1, 6-hexamethylene diisocyanate to be 5:1, and the weight ratio of bisphenol A to sodium hydroxide solution to be 3: 1.5;
and S2, adding the intermediate 1 prepared in the step S1 into a reaction kettle, adding tetrabutyl ammonium bromide, heating in a water bath at 45 ℃, uniformly stirring at a rotating speed of 100r/min for 30min, keeping the temperature, introducing carbon dioxide until the pressure of the carbon dioxide is 1.5MPa, heating to 80 ℃, uniformly stirring after the pressure is stabilized, reacting for 4h, cooling to room temperature after the reaction is finished, discharging the gas in the reaction kettle to prepare a primary material, extracting the redundant catalyst from the prepared primary material by ethyl acetate, standing, separating an oil layer, and performing reduced pressure dehydration to prepare an auxiliary material resin, wherein the using amount of the tetrabutyl ammonium bromide is controlled to be 1% of the mass of the intermediate 1.
The composite filler is prepared by the following steps:
step S11, adding succinic anhydride into N, N-dimethylacetamide, heating in a water bath at 45 ℃, stirring at a constant speed for 30min, adding diethanolamine, continuing stirring for 30min, heating to 110 ℃, adding toluene, stirring at a constant speed, reacting for 6h, distilling under reduced pressure after the reaction is finished to remove the solvent, vacuum-drying at 75 ℃ for 10h to obtain a product a, and controlling the dosage ratio of succinic anhydride to N, N-dimethylacetamide to diethanolamine to be 1 g: 5 mL;
step S12, adding epoxy chloropropane and tetrahydrofuran in sequence into a three-neck flask, mixing uniformly to obtain a mixed solution A, dropwise adding the mixed solution A into a product a, controlling the dropwise adding time to be 15min, introducing nitrogen during the dropwise adding process and reacting for 2h to obtain a crude product, washing the crude product with methyl acrylate for three times, centrifuging for 3min after washing is finished, transferring into a vacuum drying oven, drying for 10h at-0.10 MPa and 75 ℃ to obtain the composite filler, and controlling the using amount ratio of epoxy chloropropane to tetrahydrofuran to the product a to be 5 g: 10 mL: 1 g.
Example 3
The utility model provides a real wall drain pipe of socket joint formula polyethylene, its characterized in that, includes body 1 and socket joint adapter sleeve 2, and 1 one end of body is connected with socket joint adapter sleeve 2, its characterized in that, body 1 includes following part by weight raw materials: 45 parts of polyethylene, 18 parts of auxiliary material resin, 14 parts of composite filler, 0.8 part of KH560, 4 parts of dioctyl phthalate, 0.4 part of antioxidant 1010 and 8 parts of nano silicon dioxide;
the socket type polyethylene solid-wall drain pipe 1 comprises the following steps:
step one, uniformly mixing auxiliary material resin and composite filler, and uniformly stirring at a rotating speed of 50r/min for 2 hours to prepare a primary material for later use; uniformly mixing nano silicon dioxide and KH560, and uniformly stirring at 100 ℃ for 30min for later use;
and secondly, uniformly mixing the primary material, the nano silicon dioxide treated by the coupling agent, the dioctyl phthalate, the antioxidant 1010 and the polyethylene to obtain a material, adding the material into a double-screw extruder for extrusion granulation, and processing and forming to obtain the spigot-and-socket polyethylene solid-wall drain pipe.
The auxiliary material resin is prepared by the following steps:
step S1, sequentially adding bisphenol A and epichlorohydrin into a three-neck flask, introducing nitrogen, heating in a 35 ℃ water bath, uniformly stirring and dropwise adding 1, 6-hexamethylene diisocyanate at a rotating speed of 100r/min, controlling the dropwise adding time to be 30min, uniformly stirring and reacting for 2h, then heating to 60 ℃, slowly dropwise adding a sodium hydroxide solution with the mass fraction of 20%, controlling the dropwise adding time to be 15min, reacting for 2h at the temperature, washing for 3 times with deionized water, standing and layering, collecting an organic phase, and carrying out reduced pressure distillation until no fraction appears to prepare an intermediate 1, wherein the weight ratio of the bisphenol A to the epichlorohydrin is controlled to be 1: 5, the weight ratio of the bisphenol A to the 1, 6-hexamethylene diisocyanate is controlled to be 5:1, and the weight ratio of the bisphenol A to the sodium hydroxide solution is 3: 1.5;
and S2, adding the intermediate 1 prepared in the step S1 into a reaction kettle, adding tetrabutyl ammonium bromide, heating in a water bath at 45 ℃, uniformly stirring at a rotating speed of 100r/min for 30min, keeping the temperature, introducing carbon dioxide until the pressure of the carbon dioxide is 1.5MPa, heating to 80 ℃, uniformly stirring after the pressure is stabilized, reacting for 4h, cooling to room temperature after the reaction is finished, discharging the gas in the reaction kettle to prepare a primary material, extracting the redundant catalyst from the prepared primary material by ethyl acetate, standing, separating an oil layer, and performing reduced pressure dehydration to prepare an auxiliary material resin, wherein the using amount of the tetrabutyl ammonium bromide is controlled to be 1% of the mass of the intermediate 1.
The composite filler is prepared by the following steps:
step S11, adding succinic anhydride into N, N-dimethylacetamide, heating in a water bath at 45 ℃, stirring at a constant speed for 30min, adding diethanolamine, continuing stirring for 30min, heating to 110 ℃, adding toluene, stirring at a constant speed, reacting for 6h, removing a solvent by reduced pressure distillation after the reaction is finished, and then performing vacuum drying at 75 ℃ for 10h to obtain a product a, wherein the dosage ratio of succinic anhydride to N, N-dimethylacetamide to diethanolamine is controlled to be 1 g: 5 mL;
step S12, adding epoxy chloropropane and tetrahydrofuran into a three-neck flask in sequence, mixing uniformly to obtain a mixed solution A, dropwise adding the mixed solution A into a product a, controlling the dropwise adding time to be 15min, introducing nitrogen during the dropwise adding process and reacting for 2h to obtain a crude product, washing the crude product three times with methyl acrylate, centrifuging for 3min after washing is finished, transferring the washed crude product into a vacuum drying oven, drying for 10h at-0.10 MPa and 75 ℃ to obtain the composite filler, and controlling the dosage ratio of epoxy chloropropane to tetrahydrofuran to the product a to be 5 g: 10 mL: 1 g.
Example 4
The utility model provides a real wall drain pipe of socket joint formula polyethylene, its characterized in that, includes body 1 and socket joint adapter sleeve 2, and 1 one end of body is connected with socket joint adapter sleeve 2, its characterized in that, body 1 includes following part by weight raw materials: 50 parts of polyethylene, 20 parts of auxiliary material resin, 15 parts of composite filler, 1 part of KH560, 5 parts of dioctyl phthalate, 0.5 part of antioxidant 1010 and 10 parts of nano silicon dioxide;
the socket type polyethylene solid-wall drain pipe 1 comprises the following steps:
step one, uniformly mixing auxiliary material resin and composite filler, and uniformly stirring at a rotating speed of 50r/min for 2 hours to prepare a primary material for later use; uniformly mixing nano silicon dioxide and KH560, and uniformly stirring at 100 ℃ for 30min for later use;
and secondly, uniformly mixing the primary material, the nano silicon dioxide treated by the coupling agent, the dioctyl phthalate, the antioxidant 1010 and the polyethylene to obtain a material, adding the material into a double-screw extruder for extrusion granulation, and processing and forming to obtain the spigot-and-socket polyethylene solid-wall drain pipe.
The auxiliary material resin comprises the following steps:
step S1, sequentially adding bisphenol A and epichlorohydrin into a three-neck flask, introducing nitrogen, heating in a 35 ℃ water bath, uniformly stirring and dropwise adding 1, 6-hexamethylene diisocyanate at a rotating speed of 100r/min, controlling the dropwise adding time to be 30min, uniformly stirring and reacting for 2h, then heating to 60 ℃, slowly dropwise adding a sodium hydroxide solution with the mass fraction of 20%, controlling the dropwise adding time to be 15min, reacting for 2h at the temperature, washing for 3 times with deionized water, standing and layering, collecting an organic phase, and carrying out reduced pressure distillation until no fraction appears to prepare an intermediate 1, wherein the weight ratio of the bisphenol A to the epichlorohydrin is controlled to be 1: 5, the weight ratio of the bisphenol A to the 1, 6-hexamethylene diisocyanate is controlled to be 5:1, and the weight ratio of the bisphenol A to the sodium hydroxide solution is 3: 1.5;
and S2, adding the intermediate 1 prepared in the step S1 into a reaction kettle, adding tetrabutyl ammonium bromide, heating in a water bath at 45 ℃, uniformly stirring at a rotating speed of 100r/min for 30min, keeping the temperature, introducing carbon dioxide until the pressure of the carbon dioxide is 1.5MPa, heating to 80 ℃, uniformly stirring after the pressure is stabilized, reacting for 4h, cooling to room temperature after the reaction is finished, discharging the gas in the reaction kettle to prepare a primary material, extracting the redundant catalyst from the prepared primary material by ethyl acetate, standing, separating an oil layer, and performing reduced pressure dehydration to prepare an auxiliary material resin, wherein the using amount of the tetrabutyl ammonium bromide is controlled to be 1% of the mass of the intermediate 1.
The composite filler is prepared by the following steps:
step S11, adding succinic anhydride into N, N-dimethylacetamide, heating in a water bath at 45 ℃, stirring at a constant speed for 30min, adding diethanolamine, continuing stirring for 30min, heating to 110 ℃, adding toluene, stirring at a constant speed, reacting for 6h, distilling under reduced pressure after the reaction is finished to remove the solvent, vacuum-drying at 75 ℃ for 10h to obtain a product a, and controlling the dosage ratio of succinic anhydride to N, N-dimethylacetamide to diethanolamine to be 1 g: 5 mL;
step S12, adding epoxy chloropropane and tetrahydrofuran into a three-neck flask in sequence, mixing uniformly to obtain a mixed solution A, dropwise adding the mixed solution A into a product a, controlling the dropwise adding time to be 15min, introducing nitrogen during the dropwise adding process and reacting for 2h to obtain a crude product, washing the crude product three times with methyl acrylate, centrifuging for 3min after washing is finished, transferring the washed crude product into a vacuum drying oven, drying for 10h at-0.10 MPa and 75 ℃ to obtain the composite filler, and controlling the dosage ratio of epoxy chloropropane to tetrahydrofuran to the product a to be 5 g: 10 mL: 1 g.
Comparative example 1
In this comparative example, no adjuvant resin was added as compared to example 1.
Comparative example 2
This comparative example compares to example 1 without the addition of a composite filler.
Comparative example 3
This comparative example is a polyethylene drain pipe in the market.
The corrosion resistance and mechanical properties of the drain pipes of examples 1 to 4 and comparative examples 1 to 3 were measured, and the results are shown in the following table;
for the polyethylene drainage pipes prepared in the examples 1 to 4 and the comparative examples 1 to 3, the original tensile strength of the polyethylene drainage pipes is measured through experiments, the tensile strength is used as the mechanical property of the evaluation material, and after the polyethylene drainage pipes are soaked in 3moL/L sulfuric acid solution and 6moL/L sodium hydroxide solution for 24 hours, the bending strength of the polyethylene drainage pipes is measured again, so that the corrosion resistance of the polyethylene drainage pipes is tested, and the specific test result is obtained;
as can be seen from the above table, the tensile strength of examples 1 to 4 is 71.2 to 71.5MPa, the flexural strength is 78.0 to 78.6MPa, the flexural strength after sulfuric acid immersion for 24 hours is 71.0 to 71.5MPa, and the flexural strength after sodium hydroxide immersion is 70.3 to 70.8 MPa; comparative examples 1 to 3 had a tensile strength of 38.5 to 65.8MPa, a bending strength of 41.6 to 67.1MPa, a bending strength of 36.8 to 65.2MPa after 24 hours of sulfuric acid immersion, and a bending strength of 35.3 to 66.18MPa after sodium hydroxide immersion.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is illustrative and explanatory only and is not intended to be exhaustive or to limit the invention to the precise embodiments described, and various modifications, additions, and substitutions may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the claims.
Claims (3)
1. The utility model provides a real wall drain pipe of socket joint formula polyethylene, includes body (1) and socket joint adapter sleeve (2), body (1) one end is connected with socket joint adapter sleeve (2), its characterized in that, body (1) includes following part by weight raw materials: 35-50 parts of polyethylene, 10-20 parts of auxiliary material resin, 5-15 parts of composite filler, 0.5-1 part of coupling agent, 1-5 parts of plasticizer, 0.1-0.5 part of antioxidant and 5-10 parts of nano silicon dioxide;
the pipe body (1) is manufactured by the following steps:
step one, uniformly mixing auxiliary material resin and composite filler, and uniformly stirring at a rotating speed of 50-80r/min for 2 hours to prepare a primary material for later use; uniformly mixing the nano silicon dioxide and the coupling agent, and uniformly stirring for 30min at 100-110 ℃ for later use;
secondly, uniformly mixing the primary material, the nano silicon dioxide treated by the coupling agent, the plasticizer, the antioxidant and the polyethylene to obtain a material, adding the material into a double-screw extruder to extrude and granulate, and processing and forming to obtain a pipe body (1);
the auxiliary material resin is prepared by the following steps:
step S1, sequentially adding bisphenol A and epichlorohydrin into a three-neck flask, introducing nitrogen, heating in a water bath at 35-50 ℃, stirring at a constant speed of 120r/min at 100-, reacting for 2 hours at the temperature, washing for 3 times by using deionized water, standing for layering, collecting an organic phase, distilling under reduced pressure until no fraction appears to prepare an intermediate 1, controlling the weight ratio of bisphenol A to epichlorohydrin to be 1: 5, the weight ratio of bisphenol A to 1, 6-hexamethylene diisocyanate to be 5:1, and the weight ratio of bisphenol A to sodium hydroxide solution to be 3: 1.5-2;
step S2, adding the intermediate 1 prepared in the step S1 into a reaction kettle, adding tetrabutyl ammonium bromide, heating in a water bath at 45-60 ℃, stirring at a constant speed of 100-150r/min for 30min, then preserving heat and introducing carbon dioxide until the pressure of the carbon dioxide is 1.5MPa, heating to 80-100 ℃, stirring at a constant speed and reacting for 4h after the pressure is stable, cooling to room temperature after the reaction is finished, discharging the gas in the reaction kettle to prepare a primary material, extracting the redundant catalyst from the prepared primary material by ethyl acetate, standing, separating an oil layer, and dehydrating under reduced pressure to prepare an auxiliary material resin, wherein the using amount of the tetrabutyl ammonium bromide is controlled to be 1% of the mass of the intermediate 1;
the composite filler is prepared by the following steps:
step S11, adding succinic anhydride into N, N-dimethylacetamide, heating in a water bath at 45-65 ℃, stirring at a constant speed for 30min, adding diethanolamine, continuing stirring for 30min, heating to 110 ℃, adding toluene, stirring at a constant speed, reacting for 6h, removing the solvent by reduced pressure distillation after the reaction is finished, and then drying in vacuum at 75 ℃ for 10h to obtain a product a, wherein the dosage ratio of succinic anhydride, N-dimethylacetamide and diethanolamine is controlled to be 1 g: 5 mL;
step S12, adding epoxy chloropropane and tetrahydrofuran into a three-neck flask in sequence, mixing uniformly to obtain a mixed solution A, dropwise adding the mixed solution A into a product a, controlling the dropwise adding time to be 15min, introducing nitrogen during the dropwise adding process and reacting for 2h to obtain a crude product, washing the crude product three times with methyl acrylate, centrifuging for 3min after washing is finished, transferring the washed crude product into a vacuum drying oven, drying for 10h at-0.10 MPa and 75 ℃ to obtain the composite filler, and controlling the dosage ratio of epoxy chloropropane to tetrahydrofuran to the product a to be 5 g: 10 mL: 1 g.
2. The female polyethylene solid wall drain pipe according to claim 1, wherein the coupling agent is any one of KH560 and KH570, the antioxidant is any one of antioxidant 168 and antioxidant 1010, and the plasticizer is any one of dioctyl phthalate and dibutyl phthalate.
3. The socket type polyethylene solid wall drain pipe as claimed in claim 1, wherein the conditions for the reactive extrusion through the twin-screw extruder in the second step are that the temperature of the extruder is 130 ℃ and 210 ℃, and the length-diameter ratio of the screw is not less than 45: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110299697.7A CN112980082B (en) | 2021-03-22 | 2021-03-22 | Socket joint type polyethylene solid wall drain pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110299697.7A CN112980082B (en) | 2021-03-22 | 2021-03-22 | Socket joint type polyethylene solid wall drain pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112980082A CN112980082A (en) | 2021-06-18 |
| CN112980082B true CN112980082B (en) | 2022-05-10 |
Family
ID=76334214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110299697.7A Active CN112980082B (en) | 2021-03-22 | 2021-03-22 | Socket joint type polyethylene solid wall drain pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112980082B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101037431A (en) * | 2006-03-16 | 2007-09-19 | 中国科学院兰州化学物理研究所 | Method for synthesizing cricoid carbonate by addition reaction of carbon dioxide and epoxy compound ring |
| CN102190648A (en) * | 2010-03-08 | 2011-09-21 | 中国科学院成都有机化学有限公司 | Method for synthesizing cyclic carbonate by using carbon dioxide and epoxide |
| WO2016054798A1 (en) * | 2014-10-10 | 2016-04-14 | 中国科学院长春应用化学研究所 | Preparation method for cyclic carbonate |
| WO2016095289A1 (en) * | 2014-12-17 | 2016-06-23 | 杨磊 | Preparation method for nanometer material capable of improving fire resistance of waterborne polyurethane coating and adhesive |
| EP3118240A1 (en) * | 2015-07-14 | 2017-01-18 | Politechnika Gdanska | Method of preparation of non-isocyanate polyhydroxyurethanes and method of preparation non-isocyanate polyhydroxyurethane-epoxides |
| EP3354672A1 (en) * | 2017-01-27 | 2018-08-01 | Nan-Ya Plastics Corporation | Preparation and application of dicyclopentadiene-phenol and 2,6-dimethyl phenol copolymer epoxy resin |
| CN111055469A (en) * | 2019-12-16 | 2020-04-24 | 阳谷鲁发新材料有限公司 | Forming process and device of flexible composite pipe |
-
2021
- 2021-03-22 CN CN202110299697.7A patent/CN112980082B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101037431A (en) * | 2006-03-16 | 2007-09-19 | 中国科学院兰州化学物理研究所 | Method for synthesizing cricoid carbonate by addition reaction of carbon dioxide and epoxy compound ring |
| CN102190648A (en) * | 2010-03-08 | 2011-09-21 | 中国科学院成都有机化学有限公司 | Method for synthesizing cyclic carbonate by using carbon dioxide and epoxide |
| WO2016054798A1 (en) * | 2014-10-10 | 2016-04-14 | 中国科学院长春应用化学研究所 | Preparation method for cyclic carbonate |
| WO2016095289A1 (en) * | 2014-12-17 | 2016-06-23 | 杨磊 | Preparation method for nanometer material capable of improving fire resistance of waterborne polyurethane coating and adhesive |
| EP3118240A1 (en) * | 2015-07-14 | 2017-01-18 | Politechnika Gdanska | Method of preparation of non-isocyanate polyhydroxyurethanes and method of preparation non-isocyanate polyhydroxyurethane-epoxides |
| EP3354672A1 (en) * | 2017-01-27 | 2018-08-01 | Nan-Ya Plastics Corporation | Preparation and application of dicyclopentadiene-phenol and 2,6-dimethyl phenol copolymer epoxy resin |
| CN111055469A (en) * | 2019-12-16 | 2020-04-24 | 阳谷鲁发新材料有限公司 | Forming process and device of flexible composite pipe |
Non-Patent Citations (1)
| Title |
|---|
| 多元酸酐型超支化聚合物合成及改性应用研究进展;孙丽婷等;《化工新型材料》;20120915(第09期);第120-123页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112980082A (en) | 2021-06-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108250382B (en) | Biomass diphenolic acid-furfuryl amine type benzoxazine resin and preparation method thereof | |
| CN107573496B (en) | Furan dicarboxylic acid polyester containing benzoxazine structure and preparation method and application thereof | |
| CN109852241B (en) | Heat-resistant self-repairing polysiloxane-epoxy resin composite material coating and preparation method thereof | |
| CN110128376B (en) | Compound, preparation method and application of compound as latent epoxy curing agent | |
| CN114539959A (en) | Epoxy resin adhesive and preparation method thereof | |
| CN111171520A (en) | Modified carbon nanotube reinforced shape memory epoxy resin composite material and preparation method thereof | |
| CN112694739A (en) | Environment-friendly plastic pipe and preparation method thereof | |
| WO2023179260A1 (en) | Natural plant fiber/water-borne epoxy resin composite material and manufacturing method therefor | |
| CN111187393A (en) | Hyperbranched epoxy resin, hyperbranched epoxy resin-based building structure adhesive, preparation and application | |
| CN112980082B (en) | Socket joint type polyethylene solid wall drain pipe | |
| CN111087669A (en) | Preparation method of impact-resistant high-toughness corrugated pipe | |
| CN109293874B (en) | Polyether-ether-ketone modified polyurethane aqueous resin and preparation method thereof | |
| CN109535391B (en) | Thermoplastic epoxy resin composition and application thereof | |
| CN112062924B (en) | Polyurethane resin for winding process, resin/fiber composite material, and preparation method and application thereof | |
| CN115536615B (en) | Bio-based epoxy resin precursor, composition, cured product, preparation method and application | |
| CN115746555B (en) | Waterproof battery sealing ring material and preparation method thereof | |
| CN117820956B (en) | Water-based waterproof paint and preparation method thereof | |
| CN118325260B (en) | Composite toughening type plastic inspection well | |
| CN116082604B (en) | Multiple dynamic covalent bond hyperbranched polymer epoxy resin and preparation method and application thereof | |
| CN114057671B (en) | Diepoxyaromatic phenol and preparation method thereof, hyperbranched phenolic amine epoxy curing agent and preparation method thereof | |
| CN115926181B (en) | Polyimide modified epoxy resin and application thereof | |
| CN115073728B (en) | Glass-like thermosetting resin and preparation method thereof | |
| CN114702641B (en) | Modified polyurethane resin for electric power composite material and preparation method and application thereof | |
| CN109134827B (en) | Tri-functionality carboxyl epoxy resin curing agent and preparation method thereof | |
| CN118755054A (en) | Method for preparing epoxy imine solid-plastic material by solvent-free one-step method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Socket type polyethylene solid wall drainage pipe Effective date of registration: 20221030 Granted publication date: 20220510 Pledgee: Fuyang sub branch of Bank of Hangzhou Co.,Ltd. Pledgor: ZHEJIANG EARTH PIPES CO.,LTD. Registration number: Y2022330002869 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |