CN110628161A - Method for preparing high-strength high-toughness double-wall corrugated pipe by using waste beverage bottles - Google Patents
Method for preparing high-strength high-toughness double-wall corrugated pipe by using waste beverage bottles Download PDFInfo
- Publication number
- CN110628161A CN110628161A CN201910827423.3A CN201910827423A CN110628161A CN 110628161 A CN110628161 A CN 110628161A CN 201910827423 A CN201910827423 A CN 201910827423A CN 110628161 A CN110628161 A CN 110628161A
- Authority
- CN
- China
- Prior art keywords
- wall corrugated
- double
- waste beverage
- strength
- waste
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/04—Disintegrating plastics, e.g. by milling
- B29B17/0404—Disintegrating plastics, e.g. by milling to powder
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- 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
- C08J11/00—Recovery or working-up of waste materials
- C08J11/04—Recovery or working-up of waste materials of polymers
- C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
- C08J11/18—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material
- C08J11/28—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material by treatment with organic compounds containing nitrogen, sulfur or phosphorus
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/18—Pleated or corrugated hoses
-
- 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
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
The invention discloses a method for preparing a high-strength high-toughness double-wall corrugated drainage pipe by using waste beverage bottles, which is characterized by comprising the following steps of: step S1, pre-processing of waste beverage bottles, step S2, chain extension of the waste beverage bottles, and step S3, and forming of drainage pipes. The invention also discloses the high-strength high-toughness double-wall corrugated drain pipe prepared by the method for preparing the high-strength high-toughness double-wall corrugated drain pipe by using the waste beverage bottle. The method can efficiently and quickly realize the resource recycling of the waste beverage bottles, can change waste into valuable, and can prepare the double-wall corrugated drain pipe which has high strength and toughness, good weather resistance, good flame resistance and high temperature resistance and long service life and has higher economic value, social value and ecological value.
Description
Technical Field
The invention relates to the technical field of pipes, in particular to a method for preparing a high-strength and high-toughness double-wall corrugated pipe by using waste beverage bottles.
Background
At present, the construction method of the cement and metal drain pipe is mainly adopted in the construction of the outdoor buried drain pipe of the engineering such as municipal engineering rainwater and sewage discharge, industrial wastewater discharge, community drainage engineering, embedded pipelines and the like, the construction speed is low, the weight of the pipe is heavy, the carrying and the transportation are inconvenient, the labor intensity is high, the installation cost is high, the material resource and the human resource are wasted.
The double-wall corrugated drain pipe is a pipe with a plastic structure wall developed in recent years, is mainly used as a drain pipeline of a sewage drainage river, particularly a large-caliber corrugated pipe, is generally made of high-density polyvinyl chloride, is formed by extrusion and other forming processes, and has the advantages of light weight, high pressure resistance, good toughness, fast construction, long service life and the like. PVC drain pipe that uses in the existing market is mostly the PVC drainage tubular product of single raw materials, often because of its intensity is not enough, the aspect defect such as noise cancelling effect is poor, causes the drain pipe maintenance to change frequently, and the noise is big, and influences the surrounding environment, and the bellows is worn and torn easily, and the junction leaks easily. In addition, the double-wall corrugated drain pipe in the prior art generally has the defects of insufficient toughness and rigidity, and poor processing fluidity and thermal stability.
At present, the beverage is a common substance for quenching thirst and supplementing energy, is a suitable beverage for all people, brings much joy and deliciousness to people, and meanwhile, a large amount of plastic bottles for the beverage are discarded at will to serve as the reason
The white garbage brings serious harm to the living and living environment of people. Therefore, the need for recycling the waste beverage bottles is urgent.
The double-wall corrugated drainage pipe is prepared by using the waste beverage bottles, so that the problem of recycling the waste plastic bottles can be solved, waste can be changed into valuable, and the double-wall corrugated drainage pipe with excellent comprehensive performance can be prepared. However, there are few reports of success in this respect in the prior art, and a small number of reports also cause problems of compatibility between the waste beverage bottles and other raw materials, so that the overall properties of the material are yet to be further improved, and the weatherability, strength and toughness of the material are yet to be further improved.
Therefore, how to prepare the waste beverage bottle into the high-performance double-wall corrugated drainage pipe at high speed and high efficiency is a problem to be solved urgently in the industry at present.
Disclosure of Invention
The invention mainly aims to provide a method for preparing a high-strength and high-toughness double-wall corrugated pipe by using waste beverage bottles, which can efficiently and quickly realize the resource recycling of the waste beverage bottles and change waste into valuable, and the prepared double-wall corrugated drain pipe has the advantages of high strength and toughness, good weather resistance, good flame resistance and high temperature resistance, long service life and higher economic value, social value and ecological value.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows: a method for preparing a high-strength high-toughness double-wall corrugated pipe by using waste beverage bottles is characterized by comprising the following steps:
step S1, pretreatment of the waste beverage bottles: recovering waste plastic beverage bottles, removing labels, crushing the waste plastic beverage bottles into fragments with the maximum length not exceeding 3-5cm, adding the plastic fragments into boiling water, boiling for 15-25min, cooling, taking out the plastic fragments, cleaning with detergent, washing with clear water, drying in a vacuum drying oven at the temperature of 120 ℃ and 140 ℃ for 10-15 hours, crushing into powder, and sieving with a 30-60-mesh sieve;
step S2, chain extension of the waste beverage bottle: adding the waste beverage bottle treated in the step S1 into a high boiling point solvent, stirring for 25-35 minutes at 95-105 ℃, adding a polymerization inhibitor, a catalyst and 7-amino-3-vinyl-8-oxo-5-thia-1-azabicyclo [4.2.0] oct-2-ene-2-carboxylic acid, continuing to keep the temperature and stir for 1-2 hours, transferring the reaction system into a high-pressure reaction kettle, replacing the air in the kettle with nitrogen or inert gas, keeping the temperature in the high-pressure reaction kettle at 270 ℃ and the pressure at 2.0-3.0MPa, stirring and reacting for 8-10 hours, slowly exhausting and reducing the pressure to 1.0MPa within 2-3 hours, simultaneously raising the temperature in the high-pressure reaction kettle to 305 ℃ and stirring and reacting for 0.5-1.2 hours, finally, under the vacuum condition, controlling the temperature between 230 ℃ and 250 ℃, stirring and reacting for 8-10h, then cooling to room temperature, precipitating in water, washing for 3-6 times by using ethanol, and then removing the ethanol by rotary evaporation to obtain a polymer based on the waste beverage bottle;
step S3, forming of the drainage pipe: and (2) uniformly mixing the polymer based on the waste beverage bottle prepared in the step S2, diallyl isocyanurate, 2' -diallyl bisphenol A, PET fiber, filler, nano boron fiber, ultra-high molecular weight polyethylene, a coupling agent and an initiator, and adding the mixture into a double-screw extruder for melt extrusion molding to obtain the high-strength high-toughness double-wall corrugated drainage pipe.
Further, in the step S1, the detergent is prepared from the following raw materials in parts by weight: 10-15 parts of glycerol, 5-10 parts of sodium hydroxide, 2-5 parts of 1,2, 3-thiazole-4, 5-dicarboxylic acid, 20-30 parts of fatty alcohol-polyoxyethylene ether sodium sulfate, 20-30 parts of betaine, 3-6 parts of diatomite and 30-40 parts of water.
Furthermore, in the step S2, the molar ratio of the waste beverage bottle, the high boiling point solvent, the polymerization inhibitor, the catalyst and the 7-amino-3-vinyl-8-oxo-5-thia-1-azabicyclo [4.2.0] oct-2-ene-2-carboxylic acid is 1 (6-10):0.1 (0.3-0.5): 1.
Preferably, the high boiling point solvent is at least one of dimethyl sulfoxide, N-dimethylformamide, N-dimethylacetamide and N-methylpyrrolidone.
Preferably, the polymerization inhibitor is at least one selected from tetrachlorobenzoquinone, l, 4-naphthoquinone, methyl hydroquinone and p-hydroxyanisole.
Preferably, the catalyst is at least one of thiophosphonate, thiophosphoramide and phosphorous acid; the inert gas is selected from helium, neon and argon.
Further, in the step S3, the mass ratio of the polymer based on the waste beverage bottle, the diallyl isocyanurate, the 2,2' -diallyl bisphenol A, PET fiber, the filler, the nano boron fiber, the ultra-high molecular weight polyethylene, the coupling agent and the initiator is 1:0.2:0.1 (0.05-0.1):0.1:0.05:0.08 (0.01-0.03): 0.01-0.03.
Preferably, the filler is at least one of calcium carbonate, white carbon black, organic bentonite, attapulgite, talc and kaolin.
Preferably, the coupling agent is at least one of a silane coupling agent KH550, a silane coupling agent KH560 and a silane coupling agent KH 570.
Preferably, the initiator is at least one of azobisisobutyronitrile and azobisisoheptonitrile.
Preferably, the extrusion temperature of each zone of the double-screw machine is set as follows: the first zone comprises 195 ℃ for 185-.
The invention also aims to provide the high-strength high-toughness double-wall corrugated drainage pipe prepared by the method for preparing the high-strength high-toughness double-wall corrugated drainage pipe by using the waste beverage bottle.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
(1) the invention provides a method for preparing a high-strength high-toughness double-wall corrugated pipe by using waste beverage bottles, which overcomes the technical problems that the method for preparing the high-strength high-toughness double-wall corrugated drainage pipe by using the waste beverage bottles in the prior art is complex in process, long in flow, low in preparation efficiency and finished product qualification rate, the comprehensive performance of the material is still required to be further improved due to the compatibility problem between the waste beverage bottles and other raw materials, and the weather resistance, strength and toughness of the material are still required to be further improved.
(2) The method for preparing the high-strength high-toughness double-wall corrugated pipe by using the waste beverage bottles, provided by the invention, has the advantages of simple preparation process, convenience in operation, easiness in process control, low energy consumption, low requirements on equipment and reaction conditions, small environmental pollution, high recycling rate of the waste beverage bottles, high preparation efficiency and high qualified rate of finished products, is suitable for large-scale production, and has higher market popularization and application values.
(3) According to the method for preparing the high-strength and high-toughness double-wall corrugated pipe by using the waste beverage bottle, the double-wall corrugated drainage pipe prepared by the method is added with 7-amino-3-vinyl-8-oxo-5-thia-1-azabicyclo [4.2.0] oct-2-ene-2-carboxylic acid to chain extend the waste beverage bottle material, and an azabicyclo structure and a thia structure are introduced into a high molecular chain, so that the flame retardance and the weather resistance of the material can be obviously improved; the vinyl structure is introduced to provide cross-linking sites for the later material forming stage, and the material forms a three-dimensional network structure through the participation in cross-linking, so that the comprehensive performance of the material is improved.
(4) The invention provides a method for preparing a high-strength and high-toughness double-wall corrugated pipe by using waste beverage bottles, wherein the double-wall corrugated drainage pipe prepared by the method is added with diallyl isocyanurate and 2,2' -diallyl bisphenol A in the forming stage, enters a molecular chain through copolymerization and crosslinking, and introduces a phenol structure to improve the oxidation resistance of the material; the isocyanurate structure is introduced, so that the ageing resistance and the weather resistance of the material are improved; the PET fiber, the filler, the nano boron fiber and the ultra-high molecular weight polyethylene are added simultaneously, and the mechanical strength of the material can be effectively improved under the synergistic effect.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The raw materials in the embodiment of the invention are all purchased commercially, and the waste beverage bottle material is food-grade PET with the molecular weight of 3-5 ten thousand.
Example 1
A method for preparing a high-strength high-toughness double-wall corrugated pipe by using waste beverage bottles is characterized by comprising the following steps:
step S1, pretreatment of the waste beverage bottles: recovering waste plastic beverage bottles, removing labels, crushing into fragments with the maximum length not more than 3cm, adding the plastic fragments into boiling water, boiling for 15min, cooling, taking out the plastic fragments, cleaning with detergent, washing with clear water, drying in a vacuum drying oven at 120 ℃ for 10 hours, crushing into powder, and sieving with a 30-mesh sieve; the detergent is prepared from the following raw materials in parts by weight: 10 parts of glycerol, 5 parts of sodium hydroxide, 2 parts of 1,2, 3-thiazole-4, 5-dicarboxylic acid, 20 parts of fatty alcohol-polyoxyethylene ether sodium sulfate, 20 parts of betaine, 3 parts of diatomite and 30 parts of water;
step S2, chain extension of the waste beverage bottle: adding the waste beverage bottle treated in the step S1 into dimethyl sulfoxide, stirring for 25 minutes at 95 ℃, adding tetrachlorobenzoquinone, thiophosphonate and 7-amino-3-vinyl-8-oxo-5-thia-1-azabicyclo [4.2.0] oct-2-ene-2-carboxylic acid, keeping the temperature and stirring for 1 hour, transferring the reaction system into a high-pressure reaction kettle, replacing the air in the kettle with nitrogen, keeping the temperature at 250 ℃, the pressure at 2.0MPa, stirring for reaction for 8 hours, slowly exhausting and reducing the pressure to 1.0MPa within 2 hours, simultaneously heating the temperature in the high-pressure reaction kettle to 285 ℃, stirring for reaction for 0.5 hour, finally controlling the temperature at 230 ℃ under the vacuum condition, stirring for reaction for 8 hours, and cooling to room temperature, precipitating in water, washing with ethanol for 3 times, and removing ethanol by rotary evaporation to obtain polymer based on waste beverage bottle; the molar ratio of the waste beverage bottle, dimethyl sulfoxide, tetrachlorobenzoquinone, thiophosphonate and 7-amino-3-vinyl-8-oxo-5-thia-1-azabicyclo [4.2.0] oct-2-ene-2-carboxylic acid is 1:6:0.1:0.3: 1;
step S3, forming of the drainage pipe: uniformly mixing 1kg of waste beverage bottle-based polymer prepared in the step S2, 0.2kg of diallyl isocyanurate, 0.1kg of 2,2' -diallyl bisphenol A, 0.05kg of PET fibers, 0.1kg of calcium carbonate, 0.05kg of nano boron fibers, 0.08kg of ultrahigh molecular weight polyethylene, 0.01kg of silane coupling agent KH550and 0.01kg of azobisisobutyronitrile, and adding the mixture into a double-screw extruder for melt extrusion molding to obtain a high-strength high-toughness double-wall corrugated drainage pipe; the extrusion temperature of each zone of the double-screw machine is set as follows: the first zone was 185 ℃, the second zone was 200 ℃, the third zone was 215 ℃, the fourth zone was 220 ℃, the fifth zone was 230 ℃ and the die temperature was 225 ℃.
The invention also aims to provide the high-strength high-toughness double-wall corrugated drainage pipe prepared by the method for preparing the high-strength high-toughness double-wall corrugated drainage pipe by using the waste beverage bottle.
Example 2
A method for preparing a high-strength high-toughness double-wall corrugated pipe by using waste beverage bottles is characterized by comprising the following steps:
step S1, pretreatment of the waste beverage bottles: recovering waste plastic beverage bottles, removing labels, crushing into fragments with the maximum length not more than 3.5cm, boiling the plastic fragments in boiling water for 16min, cooling, taking out the plastic fragments, cleaning with detergent, washing with clear water, drying in a vacuum drying oven at 125 deg.C for 11 hr, pulverizing into powder, and sieving with 40 mesh sieve; the detergent is prepared from the following raw materials in parts by weight: 12 parts of glycerol, 6.5 parts of sodium hydroxide, 3 parts of 1,2, 3-thiazole-4, 5-dicarboxylic acid, 22 parts of fatty alcohol-polyoxyethylene ether sodium sulfate, 23 parts of betaine, 4 parts of diatomite and 32 parts of water.
Step S2, chain extension of the waste beverage bottle: adding the waste beverage bottle treated in the step S1 into N, N-dimethylformamide, stirring for 27 minutes at 97 ℃, adding l, 4-naphthoquinone, thiophosphoryl amide and 7-amino-3-vinyl-8-oxo-5-thia-1-azabicyclo [4.2.0] oct-2-ene-2-carboxylic acid, continuing to stir for 1-2 hours under heat preservation, transferring the reaction system into a high-pressure reaction kettle, replacing air in the kettle with helium, keeping the temperature in the high-pressure reaction kettle at 255 ℃, keeping the pressure at 2.2MPa, stirring for 8.5 hours, slowly exhausting and reducing the pressure to 1.0MPa within 2.3 hours, simultaneously heating the temperature in the high-pressure reaction kettle to 290 ℃, stirring for 0.7 hour, finally controlling the temperature to be 235 ℃ under vacuum condition, stirring for reaction for 8.5h, cooling to room temperature, precipitating in water, washing with ethanol for 4 times, and removing ethanol by rotary evaporation to obtain polymer based on waste beverage bottle; the molar ratio of the waste beverage bottle, the N, N-dimethylformamide, the l, 4-naphthoquinone, the thiophosphoryl amide and the 7-amino-3-vinyl-8-oxo-5-thia-1-azabicyclo [4.2.0] oct-2-ene-2-carboxylic acid is 1:7:0.1:0.35: 1;
step S3, forming of the drainage pipe: uniformly mixing 1kg of waste beverage bottle-based polymer prepared in the step S2, 0.2kg of diallyl isocyanurate, 0.1kg of 2,2' -diallyl bisphenol A, 0.06kg of PET fiber, 0.1kg of white carbon black, 0.05kg of nano boron fiber, 0.08kg of ultrahigh molecular weight polyethylene, 0.015kg of silane coupling agent KH5600.015 kg and 0.015kg of azobisisoheptonitrile, and adding the mixture into a double-screw extruder for melt extrusion molding to obtain a high-strength high-toughness double-wall corrugated drainage pipe; the extrusion temperature of each zone of the double-screw machine is set as follows: the first zone was 187 ℃, the second zone 202 ℃, the third zone 216 ℃, the fourth zone 222 ℃, the fifth zone 231 ℃ and the die temperature was 227 ℃.
The invention also aims to provide the high-strength high-toughness double-wall corrugated drainage pipe prepared by the method for preparing the high-strength high-toughness double-wall corrugated drainage pipe by using the waste beverage bottle.
Example 3
A method for preparing a high-strength high-toughness double-wall corrugated pipe by using waste beverage bottles is characterized by comprising the following steps:
step S1, pretreatment of the waste beverage bottles: recovering waste plastic beverage bottles, removing labels, crushing into fragments with the maximum length not more than 4cm, adding the plastic fragments into boiling water, boiling for 19min, cooling, taking out the plastic fragments, cleaning with detergent, washing with clear water, drying in a vacuum drying oven at 130 ℃ for 13 hours, crushing into powder, and sieving with a 45-mesh sieve; the detergent is prepared from the following raw materials in parts by weight: 13 parts of glycerol, 7.5 parts of sodium hydroxide, 3 parts of 1,2, 3-thiazole-4, 5-dicarboxylic acid, 25 parts of fatty alcohol-polyoxyethylene ether sodium sulfate, 25 parts of betaine, 4.5 parts of diatomite and 35 parts of water;
step S2, chain extension of the waste beverage bottle: adding the waste beverage bottle treated in the step S1 into N, N-dimethylacetamide, stirring for 30 minutes at 100 ℃, then adding methyl hydroquinone, phosphorous acid and 7-amino-3-vinyl-8-oxo-5-thia-1-azabicyclo [4.2.0] oct-2-ene-2-carboxylic acid into the waste beverage bottle, continuing to keep the temperature and stir for 1.5 hours, then transferring the reaction system into a high-pressure reaction kettle, replacing the air in the kettle with neon gas, keeping the temperature and pressure in the high-pressure reaction kettle at 260 ℃ and 2.5MPa, stirring and reacting for 9 hours, then slowly exhausting gas and reducing the pressure to 1.0MPa within 2.5 hours, simultaneously raising the temperature in the high-pressure reaction kettle to 295 ℃, stirring and reacting for 0.8 hours, finally controlling the temperature to 240 ℃ under the vacuum condition, stirring and reacting for 9 hours, cooling to room temperature, precipitating in water, washing with ethanol for 5 times, and removing ethanol by rotary evaporation to obtain polymer based on waste beverage bottle; the molar ratio of the waste beverage bottle, the N, N-dimethylacetamide, the methyl hydroquinone, the phosphorous acid and the 7-amino-3-vinyl-8-oxo-5-thia-1-azabicyclo [4.2.0] oct-2-ene-2-carboxylic acid is 1:8:0.1:0.4: 1;
step S3, forming of the drainage pipe: uniformly mixing 1kg of waste beverage bottle-based polymer prepared in the step S2, 0.2kg of diallyl isocyanurate, 0.1kg of 2,2' -diallyl bisphenol A, 0.07kg of PET fibers, 0.1kg of organic bentonite, 0.05kg of nano boron fibers, 0.08kg of ultrahigh molecular weight polyethylene, KH5700.02kg of silane coupling agent and 0.02kg of azobisisobutyronitrile, and adding the mixture into a double-screw extruder for melt extrusion molding to obtain a high-strength high-toughness double-wall corrugated drainage pipe; the extrusion temperature of each zone of the double-screw machine is set as follows: the first zone was 190 ℃, the second zone was 205 ℃, the third zone was 217 ℃, the fourth zone was 225 ℃, the fifth zone was 233 ℃ and the die temperature was 230 ℃.
The invention also aims to provide the high-strength high-toughness double-wall corrugated drainage pipe prepared by the method for preparing the high-strength high-toughness double-wall corrugated drainage pipe by using the waste beverage bottle.
Example 4
A method for preparing a high-strength high-toughness double-wall corrugated pipe by using waste beverage bottles is characterized by comprising the following steps:
step S1, pretreatment of the waste beverage bottles: recovering waste plastic beverage bottles, removing labels, crushing into fragments with the maximum length not more than 3-5cm, adding the plastic fragments into boiling water, boiling for 23min, cooling, taking out the plastic fragments, cleaning with detergent, washing with clear water, drying in a vacuum drying oven at 135 deg.C for 14 hr, pulverizing into powder, and sieving with a 50 mesh sieve; the detergent is prepared from the following raw materials in parts by weight: 14 parts of glycerol, 9 parts of sodium hydroxide, 4.5 parts of 1,2, 3-thiazole-4, 5-dicarboxylic acid, 28 parts of fatty alcohol-polyoxyethylene ether sodium sulfate, 29 parts of betaine, 5.5 parts of diatomite and 38 parts of water;
step S2, chain extension of the waste beverage bottle: adding the waste beverage bottle treated in the step S1 into a high boiling point solvent, stirring for 33 minutes at 103 ℃, adding a polymerization inhibitor, a catalyst and 7-amino-3-vinyl-8-oxo-5-thia-1-azabicyclo [4.2.0] oct-2-ene-2-carboxylic acid, continuing to keep the temperature and stir for 1.8 hours, then transferring the reaction system into a high-pressure reaction kettle, replacing the air in the kettle with argon, keeping the temperature at 268 ℃ and the pressure at 2.8MPa in the high-pressure reaction kettle, stirring and reacting for 9.5 hours, then slowly exhausting and reducing the pressure to 1.0MPa within 2.8 hours, simultaneously heating the temperature in the high-pressure reaction kettle to 300 ℃, stirring and reacting for 1 hour, finally controlling the temperature to be 248 ℃ under the vacuum condition, stirring and reacting for 9.7 hours, and then cooling to room temperature, precipitating in water, washing with ethanol for 3-6 times, and removing ethanol by rotary evaporation to obtain polymer based on waste beverage bottle; the molar ratio of the waste beverage bottle, the high-boiling point solvent, the polymerization inhibitor, the catalyst and the 7-amino-3-vinyl-8-oxo-5-thia-1-azabicyclo [4.2.0] oct-2-ene-2-carboxylic acid is 1:9:0.1:0.48: 1; the high-boiling-point solvent is formed by mixing dimethyl sulfoxide, N-dimethylformamide, N-dimethylacetamide and N-methylpyrrolidone according to a mass ratio of 1:1:2: 3; the polymerization inhibitor is formed by mixing tetrachlorobenzoquinone, l, 4-naphthoquinone, methyl hydroquinone and p-hydroxyanisole according to the mass ratio of 2:5:3: 1; the catalyst is formed by mixing thiophosphonate, thiophosphoryl amide and phosphorous acid according to the mass ratio of 3:4: 2;
step S3, forming of the drainage pipe: uniformly mixing 1kg of waste beverage bottle-based polymer prepared in the step S2, 0.2kg of diallyl isocyanurate, 0.1kg of 2,2' -diallyl bisphenol A, 0.09kg of PET fibers, 0.1kg of fillers, 0.05kg of nano boron fibers, 0.08kg of ultrahigh molecular weight polyethylene, 0.025kg of coupling agents and 0.028kg of initiators, and adding the mixture into a double-screw extruder for melt extrusion molding to obtain a high-strength high-toughness double-wall corrugated drainage pipe; the filler is formed by mixing calcium carbonate, white carbon black, organic bentonite, attapulgite, talcum powder and kaolin according to the mass ratio of 1:2:4:3:2: 5; the coupling agent is formed by mixing a silane coupling agent KH550, a silane coupling agent KH560 and a silane coupling agent KH570 according to a mass ratio of 1:2: 4; the initiator is formed by mixing azodiisobutyronitrile and azodiisoheptonitrile according to the mass ratio of 3: 5; the extrusion temperature of each zone of the double-screw machine is set as follows: the first zone 193 ℃, the second zone 209 ℃, the third zone 219 ℃, the fourth zone 228 ℃, the fifth zone 234 ℃ and the die temperature is 234 ℃.
The invention also aims to provide the high-strength high-toughness double-wall corrugated drainage pipe prepared by the method for preparing the high-strength high-toughness double-wall corrugated drainage pipe by using the waste beverage bottle.
Example 5
A method for preparing a high-strength high-toughness double-wall corrugated pipe by using waste beverage bottles is characterized by comprising the following steps:
step S1, pretreatment of the waste beverage bottles: recovering waste plastic beverage bottles, removing labels, crushing into fragments with the maximum length not more than 5cm, adding the plastic fragments into boiling water, boiling for 25min, cooling, taking out the plastic fragments, cleaning with detergent, washing with clear water, drying in a vacuum drying oven at 140 ℃ for 15 hours, crushing into powder, and sieving with a 60-mesh sieve; the detergent is prepared from the following raw materials in parts by weight: 15 parts of glycerol, 10 parts of sodium hydroxide, 5 parts of 1,2, 3-thiazole-4, 5-dicarboxylic acid, 30 parts of fatty alcohol-polyoxyethylene ether sodium sulfate, 30 parts of betaine, 6 parts of diatomite and 40 parts of water;
step S2, chain extension of the waste beverage bottle: adding the waste beverage bottle treated in the step S1 into N-methyl pyrrolidone, stirring for 35 minutes at 105 ℃, adding p-hydroxyanisole, phosphorous acid and 7-amino-3-vinyl-8-oxo-5-thia-1-azabicyclo [4.2.0] oct-2-ene-2-carboxylic acid, continuing to keep the temperature and stir for 2 hours, then transferring the reaction system into a high-pressure reaction kettle, replacing the air in the kettle with nitrogen, keeping the temperature at 270 ℃, the pressure at 3.0MPa, stirring and reacting for 10 hours, then slowly exhausting and reducing the pressure to 1.0MPa within 3 hours, simultaneously heating the temperature in the high-pressure reaction kettle to 305 ℃, stirring and reacting for 1.2 hours, finally, stirring and reacting for 10 hours under the vacuum condition, controlling the temperature to be 250 ℃, cooling to room temperature, precipitating in water, washing with ethanol for 6 times, and removing ethanol by rotary evaporation to obtain polymer based on waste beverage bottle; the molar ratio of the waste beverage bottle, the N-methylpyrrolidone, the p-hydroxyanisole, the phosphorous acid and the 7-amino-3-vinyl-8-oxo-5-thia-1-azabicyclo [4.2.0] oct-2-ene-2-carboxylic acid is 1:10:0.1:0.5: 1;
step S3, forming of the drainage pipe: uniformly mixing 1kg of waste beverage bottle-based polymer prepared in the step S2, 0.2kg of diallyl isocyanurate, 0.1kg of 2,2' -diallyl bisphenol A, 0.1kg of PET fibers, 0.1kg of attapulgite, 0.05kg of nano boron fibers, 0.08kg of ultrahigh molecular weight polyethylene, 0.03kg of silane coupling agent KH5600.03 kg and 0.03kg of azobisisoheptonitrile, and adding the mixture into a double-screw extruder for melt extrusion molding to obtain a high-strength high-toughness double-wall corrugated drainage pipe; the extrusion temperature of each zone of the double-screw machine is set as follows: the first zone 195 deg.C, the second zone 210 deg.C, the third zone 220 deg.C, the fourth zone 230 deg.C, the fifth zone 235 deg.C, and the die temperature 235 deg.C.
The invention also aims to provide the high-strength high-toughness double-wall corrugated drainage pipe prepared by the method for preparing the high-strength high-toughness double-wall corrugated drainage pipe by using the waste beverage bottle.
Comparative example 1
This example provides a method for manufacturing a high-strength and high-toughness double-wall corrugated pipe using waste beverage bottles, which is substantially the same as in example 1, except that polymers based on waste beverage bottles are replaced with waste beverage bottles in step S3.
Comparative example 2
This example provides a method for producing high strength and high toughness double wall corrugated pipe using waste beverage bottles, substantially the same as in example 1, except that no diallyl isocyanurate is added in step S3.
Comparative example 3
This example provides a method for producing a high-strength and high-toughness double-wall corrugated pipe using waste beverage bottles, which is substantially the same as in example 1, except that 2,2' -diallylbisphenol A is not added in step S3.
Comparative example 4
This example provides a method for manufacturing a high-strength and high-toughness double-wall corrugated pipe using waste beverage bottles, which is substantially the same as in example 1, except that no PET fiber is added in step S3.
Comparative example 5
This example provides a method for preparing high-strength high-toughness double-wall corrugated pipe using waste beverage bottles, which is substantially the same as in example 1, except that no ultra-high molecular weight polyethylene is added in step S3.
Comparative example 6
This example provides a method for preparing high-strength high-toughness double-wall corrugated pipe using waste beverage bottles, which is substantially the same as in example 1, except that nano boron fibers are not added in step S3.
Comparative example 7
This example provides a commercially available PVC double wall corrugated drain pipe.
In order to further illustrate the technical effects of the method for preparing the high-strength and high-toughness double-wall corrugated drainage pipe by using the waste beverage bottle disclosed by the embodiment of the invention, the physical properties of the double-wall corrugated drainage pipe prepared by the method for preparing the high-strength and high-toughness double-wall corrugated drainage pipe by using the waste beverage bottle are detected, and the test method and the test results are shown in table 1.
TABLE 1
| Item | Tensile strength | Impact resistance | Limiting oxygen index | Vicat softening point |
| Unit of | MPa | J/M | ％ | ℃ |
| Test standard | GB/T1040-2006 | ASTMD256 | GB5454-85 | GB 1633-1979 |
| Example 1 | 54.0 | 332 | 35.5 | 123 |
| Example 2 | 54.3 | 334 | 35.8 | 125 |
| Example 3 | 54.5 | 335 | 36.0 | 128 |
| Example 4 | 55.2 | 338 | 36.3 | 130 |
| Example 5 | 55.5 | 343 | 36.5 | 134 |
| Comparative example 1 | 40.6 | 310 | 28.5 | 110 |
| Comparative example 2 | 44.3 | 319 | 27.2 | 108 |
| Comparative example 3 | 44.5 | 320 | 27.4 | 112 |
| Comparative example 4 | 45.8 | 319 | 33.0 | 106 |
| Comparative example 5 | 46.0 | 322 | 32.6 | 107 |
| Comparative example 6 | 45.5 | 324 | 25.3 | 111 |
| Comparative example 7 | 42.7 | 300 | 24.8 | 100 |
As can be seen from Table 1, the double-wall corrugated drainage pipe prepared by the method for preparing the high-strength and high-toughness double-wall corrugated drainage pipe by using the waste beverage bottles disclosed by the embodiment of the invention has the tensile strength of more than or equal to 54.0MPa, the impact resistance of more than or equal to 332J/M, the limiting oxygen index of more than or equal to 35.5% and the Vicat softening point of more than or equal to 123 ℃; the tensile strength of the double-wall corrugated drainage pipe in the comparative example is less than or equal to 46.0MPa, the impact resistance is less than or equal to 324J/M, the limiting oxygen index is less than or equal to 33.0 percent, and the Vicat softening point is less than or equal to 112 ℃. Therefore, the addition of the polymer, the diallyl isocyanurate, the 2,2' -diallyl bisphenol A, PET fiber, the nano boron fiber and the ultra-high molecular weight polyethylene based on the waste beverage bottle to the prepared double-wall corrugated drainage pipe has an effect of improving the mechanical property, the high temperature resistance and the flame retardance of the material.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A method for preparing a high-strength high-toughness double-wall corrugated pipe by using waste beverage bottles is characterized by comprising the following steps:
step S1, pretreatment of the waste beverage bottles: recovering waste plastic beverage bottles, removing labels, crushing the waste plastic beverage bottles into fragments with the maximum length not exceeding 3-5cm, adding the plastic fragments into boiling water, boiling for 15-25min, cooling, taking out the plastic fragments, cleaning with detergent, washing with clear water, drying in a vacuum drying oven at the temperature of 120 ℃ and 140 ℃ for 10-15 hours, crushing into powder, and sieving with a 30-60-mesh sieve;
step S2, chain extension of the waste beverage bottle: adding the waste beverage bottle treated in the step S1 into a high boiling point solvent, stirring for 25-35 minutes at 95-105 ℃, adding a polymerization inhibitor, a catalyst and 7-amino-3-vinyl-8-oxo-5-thia-1-azabicyclo [4.2.0] oct-2-ene-2-carboxylic acid, continuing to keep the temperature and stir for 1-2 hours, transferring the reaction system into a high-pressure reaction kettle, replacing the air in the kettle with nitrogen or inert gas, keeping the temperature in the high-pressure reaction kettle at 270 ℃ and the pressure at 2.0-3.0MPa, stirring and reacting for 8-10 hours, slowly exhausting and reducing the pressure to 1.0MPa within 2-3 hours, simultaneously raising the temperature in the high-pressure reaction kettle to 305 ℃ and stirring and reacting for 0.5-1.2 hours, finally, under the vacuum condition, controlling the temperature between 230 ℃ and 250 ℃, stirring and reacting for 8-10h, then cooling to room temperature, precipitating in water, washing for 3-6 times by using ethanol, and then removing the ethanol by rotary evaporation to obtain a polymer based on the waste beverage bottle;
step S3, forming of the drainage pipe: and (2) uniformly mixing the polymer based on the waste beverage bottle prepared in the step S2, diallyl isocyanurate, 2' -diallyl bisphenol A, PET fiber, filler, nano boron fiber, ultra-high molecular weight polyethylene, a coupling agent and an initiator, and adding the mixture into a double-screw extruder for melt extrusion molding to obtain the high-strength high-toughness double-wall corrugated drainage pipe.
2. The method for preparing a high-strength and high-toughness double-wall corrugated pipe material by using waste beverage bottles as claimed in claim 1, wherein the detergent in the step S1 is prepared from the following raw materials in parts by weight: 10-15 parts of glycerol, 5-10 parts of sodium hydroxide, 2-5 parts of 1,2, 3-thiazole-4, 5-dicarboxylic acid, 20-30 parts of fatty alcohol-polyoxyethylene ether sodium sulfate, 20-30 parts of betaine, 3-6 parts of diatomite and 30-40 parts of water.
3. The method for preparing a high-strength and high-toughness double-wall corrugated pipe material by using waste beverage bottles as claimed in claim 1, wherein the molar ratio of the waste beverage bottles, the high-boiling point solvent, the polymerization inhibitor, the catalyst and the 7-amino-3-vinyl-8-oxo-5-thia-1-azabicyclo [4.2.0] oct-2-ene-2-carboxylic acid in the step S2 is 1 (6-10):0.1 (0.3-0.5): 1.
4. The method for preparing high-strength high-toughness double-wall corrugated pipe material by using waste beverage bottles as claimed in claim 1, wherein the high-boiling-point solvent is at least one of dimethyl sulfoxide, N-dimethylformamide, N-dimethylacetamide and N-methylpyrrolidone.
5. The method for preparing high-strength and high-toughness double-wall corrugated pipe material by using waste beverage bottles as claimed in claim 1, wherein the polymerization inhibitor is at least one selected from tetrachlorobenzoquinone, l, 4-naphthoquinone, methylhydroquinone and p-hydroxyanisole.
6. The method for preparing the high-strength and high-toughness double-wall corrugated pipe material by using the waste beverage bottle as claimed in claim 1, wherein the catalyst is at least one of thiophosphonate, thiophosphoramide and phosphorous acid; the inert gas is selected from helium, neon and argon.
7. The method for preparing a high-strength and high-toughness double-wall corrugated pipe material by using waste beverage bottles as claimed in claim 1, wherein the mass ratio of the polymer based on the waste beverage bottles, the diallyl isocyanurate, the 2,2' -diallyl bisphenol A, PET fiber, the filler, the nano boron fiber, the ultrahigh molecular weight polyethylene, the coupling agent and the initiator in the step S3 is 1:0.2:0.1 (0.05-0.1):0.1:0.05:0.08 (0.01-0.03): 0.01-0.03.
8. The method for preparing high-strength high-toughness double-wall corrugated pipe material using waste beverage bottles as claimed in claim 1, wherein the filler is at least one of calcium carbonate, white carbon black, organic bentonite, attapulgite, talc and kaolin; the coupling agent is at least one of a silane coupling agent KH550, a silane coupling agent KH560 and a silane coupling agent KH 570; the initiator is at least one of azobisisobutyronitrile and azobisisoheptonitrile.
9. The method for preparing high-strength and high-toughness double-wall corrugated pipe material by using waste beverage bottles as claimed in claim 1, wherein the extrusion temperature of each zone of the double-screw machine is set as follows: the first zone comprises 195 ℃ for 185-.
10. A high-strength high-toughness double-wall corrugated drain pipe manufactured by the method for manufacturing the high-strength high-toughness double-wall corrugated pipe by using the waste beverage bottle as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910827423.3A CN110628161A (en) | 2019-09-03 | 2019-09-03 | Method for preparing high-strength high-toughness double-wall corrugated pipe by using waste beverage bottles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910827423.3A CN110628161A (en) | 2019-09-03 | 2019-09-03 | Method for preparing high-strength high-toughness double-wall corrugated pipe by using waste beverage bottles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110628161A true CN110628161A (en) | 2019-12-31 |
Family
ID=68970007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910827423.3A Withdrawn CN110628161A (en) | 2019-09-03 | 2019-09-03 | Method for preparing high-strength high-toughness double-wall corrugated pipe by using waste beverage bottles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110628161A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112280065A (en) * | 2020-11-17 | 2021-01-29 | 中国葛洲坝集团绿园科技有限公司 | Polyethylene reclaimed material, preparation method thereof and solid-wall pipe |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949477A (en) * | 2010-09-06 | 2011-01-19 | 天津军星管业集团有限公司 | Novel plastic double-wall corrugated pipe |
| CN104497500A (en) * | 2014-12-17 | 2015-04-08 | 中北大学 | Waste recycled polyester beverage bottle blend modified reinforced toughened material and preparation method thereof |
| CN107603166A (en) * | 2017-09-22 | 2018-01-19 | 安徽裕泰环保科技有限公司 | A kind of waste PET reproducing method |
-
2019
- 2019-09-03 CN CN201910827423.3A patent/CN110628161A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949477A (en) * | 2010-09-06 | 2011-01-19 | 天津军星管业集团有限公司 | Novel plastic double-wall corrugated pipe |
| CN104497500A (en) * | 2014-12-17 | 2015-04-08 | 中北大学 | Waste recycled polyester beverage bottle blend modified reinforced toughened material and preparation method thereof |
| CN107603166A (en) * | 2017-09-22 | 2018-01-19 | 安徽裕泰环保科技有限公司 | A kind of waste PET reproducing method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112280065A (en) * | 2020-11-17 | 2021-01-29 | 中国葛洲坝集团绿园科技有限公司 | Polyethylene reclaimed material, preparation method thereof and solid-wall pipe |
| CN112280065B (en) * | 2020-11-17 | 2023-03-10 | 中国葛洲坝集团绿园科技有限公司 | Polyethylene reclaimed material, preparation method thereof and solid-wall pipe |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104961976B (en) | Improved polyalkene DRPO steel modeling enhancing winding draining blow-off pipe | |
| CN104861291A (en) | Environment-friendly antistatic polypropylene plastic inspection well material restored and modified by waste polypropylene molecular chain and preparation method for environment-friendly antistatic polypropylene plastic inspection well material | |
| CN109456563B (en) | Special material for UHMWPE alloy compatibilization toughening modified polypropylene corrugated pipe and preparation method thereof | |
| CN109401045B (en) | Special material for high-performance functionalized alloy modified polypropylene corrugated pipe and preparation method thereof | |
| CN103012964A (en) | Low-temperature PPR (Polypropylene Random Copolymer) pipe | |
| CN110330710B (en) | Pressure-resistant PE pipe and preparation method thereof | |
| CN110437572A (en) | A kind of glass fiber reinforced plastics composite material and preparation method thereof | |
| CN111423689B (en) | Modified polypropylene material and preparation method and application thereof | |
| CN110628161A (en) | Method for preparing high-strength high-toughness double-wall corrugated pipe by using waste beverage bottles | |
| CN109401171B (en) | High-temperature-resistant ultra-high molecular weight polyethylene pipe and preparation method thereof | |
| CN105542309A (en) | High-strength polypropylene reinforced plastic septic tank and processing technology thereof | |
| CN104292391A (en) | Melting production method for unsaturated anhydride grafted chlorinated polyethylene | |
| CN113527793A (en) | Production method of HDPE double-wall corrugated pipe | |
| CN111621113A (en) | Anti-aging polyethylene pipeline material and preparation method thereof | |
| CN105001637A (en) | High polymer material for pipeline and preparation method of high polymer material | |
| CN110698747B (en) | Creep-resistant impact-resistant PE pipe and production method thereof | |
| CN112175272A (en) | Outdoor plastic-wood floor with high dimensional stability in high-temperature environment | |
| CN111186153A (en) | PE plastic pipeline manufacturing process | |
| CN108530786B (en) | Anti-aging HIPS foamed plastic and preparation method thereof | |
| CN111440398B (en) | Special material for ion-crosslinked polyvinyl chloride protection tube | |
| CN113388192B (en) | High-toughness low-temperature-resistant high-gloss regenerated PP modified material and preparation method thereof | |
| CN113337026A (en) | Preparation process of corrosion-resistant PE drain pipe | |
| CN113150354A (en) | Microwave treatment method for low-temperature-resistant high-performance PP-R pipe | |
| CN112608540A (en) | Flame-retardant antistatic polyethylene for underground coal mine, and preparation method and application thereof | |
| CN110713713A (en) | High-performance glass fiber reinforced plastic composite material and preparation method thereof |
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 | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20191231 |