CN109251397B - High-strength HDPE corrugated pipe material and preparation method thereof - Google Patents
High-strength HDPE corrugated pipe material and preparation method thereof Download PDFInfo
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- 239000000463 material Substances 0.000 title claims abstract description 53
- 229920001903 high density polyethylene Polymers 0.000 title claims abstract description 40
- 239000004700 high-density polyethylene Substances 0.000 title claims abstract description 40
- 238000002360 preparation method Methods 0.000 title claims description 33
- 239000000945 filler Substances 0.000 claims abstract description 45
- 239000000839 emulsion Substances 0.000 claims abstract description 41
- 229960000892 attapulgite Drugs 0.000 claims abstract description 32
- 229910052625 palygorskite Inorganic materials 0.000 claims abstract description 32
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical class N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 31
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000012760 heat stabilizer Substances 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 10
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 9
- -1 polyethylene Polymers 0.000 claims abstract description 7
- 239000000654 additive Substances 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 41
- 238000006243 chemical reaction Methods 0.000 claims description 34
- 239000000843 powder Substances 0.000 claims description 31
- 239000012065 filter cake Substances 0.000 claims description 24
- 238000003756 stirring Methods 0.000 claims description 24
- 239000008367 deionised water Substances 0.000 claims description 22
- 229910021641 deionized water Inorganic materials 0.000 claims description 22
- 238000000227 grinding Methods 0.000 claims description 21
- 238000002156 mixing Methods 0.000 claims description 21
- 238000001816 cooling Methods 0.000 claims description 18
- 238000001035 drying Methods 0.000 claims description 16
- 239000000243 solution Substances 0.000 claims description 16
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 12
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 12
- 239000004094 surface-active agent Substances 0.000 claims description 12
- 239000000725 suspension Substances 0.000 claims description 12
- 239000011259 mixed solution Substances 0.000 claims description 11
- 238000000967 suction filtration Methods 0.000 claims description 11
- 239000002002 slurry Substances 0.000 claims description 10
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 9
- 239000008116 calcium stearate Substances 0.000 claims description 9
- 235000013539 calcium stearate Nutrition 0.000 claims description 9
- LYRFLYHAGKPMFH-UHFFFAOYSA-N octadecanamide Chemical class CCCCCCCCCCCCCCCCCC(N)=O LYRFLYHAGKPMFH-UHFFFAOYSA-N 0.000 claims description 9
- SJECZPVISLOESU-UHFFFAOYSA-N 3-trimethoxysilylpropan-1-amine Chemical compound CO[Si](OC)(OC)CCCN SJECZPVISLOESU-UHFFFAOYSA-N 0.000 claims description 8
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims description 8
- 239000005751 Copper oxide Substances 0.000 claims description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 8
- 239000002202 Polyethylene glycol Substances 0.000 claims description 8
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 8
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 claims description 8
- 229910000431 copper oxide Inorganic materials 0.000 claims description 8
- 229920001223 polyethylene glycol Polymers 0.000 claims description 8
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 8
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims description 8
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 8
- 229910001388 sodium aluminate Inorganic materials 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 6
- MXRIRQGCELJRSN-UHFFFAOYSA-N O.O.O.[Al] Chemical compound O.O.O.[Al] MXRIRQGCELJRSN-UHFFFAOYSA-N 0.000 claims description 5
- 238000001354 calcination Methods 0.000 claims description 5
- 239000000706 filtrate Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 238000002791 soaking Methods 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- 239000002689 soil Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 abstract description 18
- 230000007547 defect Effects 0.000 abstract description 11
- 239000003063 flame retardant Substances 0.000 abstract description 6
- 239000002861 polymer material Substances 0.000 abstract description 5
- 239000004698 Polyethylene Substances 0.000 abstract description 4
- 238000002474 experimental method Methods 0.000 abstract description 4
- 239000012535 impurity Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 229920000573 polyethylene Polymers 0.000 abstract description 4
- 239000011148 porous material Substances 0.000 abstract description 4
- 239000006185 dispersion Substances 0.000 abstract 1
- 239000012752 auxiliary agent Substances 0.000 description 5
- 238000006116 polymerization reaction Methods 0.000 description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 description 1
- XJWSAJYUBXQQDR-UHFFFAOYSA-M dodecyltrimethylammonium bromide Chemical compound [Br-].CCCCCCCCCCCC[N+](C)(C)C XJWSAJYUBXQQDR-UHFFFAOYSA-M 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/346—Clay
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/02—Ingredients treated with inorganic substances
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
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- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/085—Copper
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- Chemical Kinetics & Catalysis (AREA)
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Abstract
The invention discloses a high-strength HDPE corrugated pipe material which comprises the following raw materials in parts by weight: 60-70 parts of high-density polyethylene, 10-20 parts of filler emulsion, 5-10 parts of nano copper powder, 3-5 parts of heat stabilizer, 4-6 parts of modified flame retardant and 1-2 parts of other additives. According to the invention, by changing the formula of the filler emulsion, the attapulgite is treated and acidified by dilute hydrochloric acid to prepare the filler emulsion, so that impurities distributed in the pore channels of the attapulgite can be removed, the specific surface area of the attapulgite is increased, and the obtained filler emulsion not only can effectively organize the surface of the attapulgite, but also can improve the dispersion degree of the filler in polyethylene; the nano copper powder prepared by the method has large specific surface area, can be better dispersed in a polymer framework, and improves the interconnection degree between the polymer frameworks; the modified flame retardant prepared by the invention has good flame retardant property, can improve the ignition point of a polymer material in a comparison experiment, and overcomes the defect of low ignition point of the polymer.
Description
Technical Field
The invention belongs to the technical field of high polymer materials, and particularly relates to a high-strength HDPE corrugated pipe material and a preparation method thereof.
Background
The corrugated pipe material is a novel pipe with a special corrugated structure, is widely applied to the fields of buildings, water conservancy, bridges and the like, and plays an important role in human life.
However, most common corrugated pipes on the market at present are low-viscosity corrugated pipes which are difficult to extrude and form, and common corrugated pipes produced by polymerization can be extruded and formed, but have poor flexibility, tensile property and impact strength, so that the practical application range of the materials is greatly limited.
Disclosure of Invention
In order to overcome the technical problems, the invention aims to provide a high-strength HDPE corrugated pipe material and a preparation method thereof, wherein the prepared HDPE corrugated pipe has the characteristics of excellent wear resistance, thermal stability and aging resistance, and the overall mechanical property and stability of the material are improved.
According to the invention, the formula of the filler emulsion is changed, the attapulgite is treated and acidified by dilute hydrochloric acid to prepare the filler emulsion, impurities distributed in the pore channels of the attapulgite can be removed, the specific surface area of the filler emulsion is increased, the obtained filler emulsion not only can effectively organize the surface of the attapulgite, but also can improve the dispersity of the filler among polyethylene, so that the overall mechanical property and stability of the material can be improved, and the defects of no high temperature resistance, weak pressure resistance, insufficient impact resistance and the like of the traditional HDPE corrugated pipe material are overcome.
The surface active agent in the invention has fixed hydrophilic and oleophilic groups, can be directionally arranged on the surface of the solution, can make the surface of the prepared material smoother, and solves the defects of rough surface and poor appearance of the material.
The nano copper powder prepared by the method has large specific surface area, can be better dispersed in polymer frameworks, improves the interconnection degree among the polymer frameworks, solves the problem of weak polymerization force among the polymers, and improves the overall stability of the polymers.
The modified flame retardant prepared by the invention has good flame retardant property, can improve the ignition point of a polymer material in a comparison experiment, and overcomes the defect of low ignition point of the polymer.
The purpose of the invention can be realized by the following technical scheme:
a high-strength HDPE corrugated pipe material comprises the following raw materials in parts by weight: 60-70 parts of high-density polyethylene, 10-20 parts of filler emulsion, 5-10 parts of nano copper powder, 3-5 parts of heat stabilizer, 4-6 parts of modified flame retardant and 1-2 parts of other additives;
the preparation steps of the high-strength HDPE corrugated pipe material are as follows:
(1) the preparation method of the filler emulsion comprises the following steps:
grinding attapulgite into powder, soaking the powder in a proper amount of dilute hydrochloric acid solution for 5-10 hours, removing filtrate, washing the powder with deionized water, performing suction filtration, putting a filter cake into an oven for drying at 80-100 ℃ for 10-20 hours fully, putting the filter cake into a muffle furnace for calcining at 400-500 ℃ for 2-3 hours, cooling the filter cake to room temperature, and grinding the filter cake into powder to obtain modified attapulgite;
adding saturated octadecanamide into a beaker filled with absolute ethyl alcohol, sequentially adding modified attapulgite, calcium stearate and a surfactant, and stirring in a water bath at 50-60 ℃ for 1-2 hours to obtain a filler emulsion, wherein the surfactant has fixed hydrophilic and lipophilic groups and can be directionally arranged on the surface of a solution, so that the surface of the prepared material has a smooth feeling, and the defects of rough and unattractive surface of the material are overcome;
(2) the preparation method of the nano copper powder comprises the following steps:
dissolving polyvinylpyrrolidone and polyethylene glycol into a beaker filled with deionized water, stirring for 1-2 hours under the condition of water bath at the temperature of 60-70 ℃, then fully and uniformly mixing, adding copper oxide particles, and completely mixing to obtain a suspension;
slowly dripping ammonia water into the suspension until a colloidal solution is formed, stirring for 1-2 hours until the ammonia water is fully and uniformly mixed, pouring the mixed solution into a reaction kettle, putting the reaction kettle into an oven for reaction at 180-200 ℃ for 1-2 days, taking out the reaction kettle, cooling to room temperature, performing suction filtration, putting the reaction kettle into the oven for full drying at 80-100 ℃ for 10-15 hours, and grinding into powder to obtain the nano copper powder.
(3) The preparation method of the modified flame retardant comprises the following steps:
sequentially adding aluminum hydroxide powder and sodium aluminate into a beaker filled with deionized water, and fully and uniformly mixing for 1-2 hours to obtain aluminum hydroxide slurry;
adding a small amount of aminopropyltrimethoxysilane into the slurry, stirring for 1-2 hours under the condition of a water bath at 60-70 ℃ until the mixture is fully mixed uniformly, putting the mixed solution into an oven for fully drying for 10-15 hours at 80-100 ℃, and grinding into powder to obtain the modified flame retardant;
(4) the preparation method of the high-strength HDPE corrugated pipe material comprises the following steps:
and sequentially adding the high-density polyethylene, the filler emulsion, the nano copper powder, the heat stabilizer, the modified flame retardant and other auxiliaries into an open mill, fully mixing for 1-2 hours at 150-200 ℃, and cooling to room temperature to obtain the high-strength HDPE corrugated pipe material.
Further: the filler emulsion is prepared from the following raw materials in parts by weight: 40-50 parts of attapulgite, 20-30 parts of absolute ethyl alcohol, 5-10 parts of saturated octadecanamide, 5-10 parts of calcium stearate and 10-20 parts of surfactant.
Further: the preparation process of the nano copper powder comprises the following raw materials in parts by weight: 40-50 parts of copper oxide, 5-8 parts of polyvinylpyrrolidone, 7-12 parts of polyethylene glycol and 30-40 parts of deionized water.
Further: the modified flame retardant is prepared from the following raw materials in parts by weight: 40-50 parts of aluminum hydroxide, 10-20 parts of sodium aluminate, 2-5 parts of aminopropyl trimethoxy silane and 30-40 parts of deionized water.
Further: the inner lining of the reaction kettle is made of polytetrafluoroethylene material, the outer part of the reaction kettle is made of steel material, and the whole reaction process is sealed.
Further: the surfactant is at least one of sodium dodecyl benzene sulfonate, dodecyl trimethyl ammonium bromide and sodium hepatocholate.
Further: the heat stabilizer is organic copper halide.
Further: the other auxiliary agent is at least one of an antioxidant, a lubricant, a coloring agent and a dispersing agent.
The invention has the beneficial effects that:
1. according to the invention, the formula of the filler emulsion is changed, the attapulgite is treated and acidified by dilute hydrochloric acid to prepare the filler emulsion, impurities distributed in the pore channels of the attapulgite can be removed, the specific surface area of the filler emulsion is increased, the obtained filler emulsion not only can effectively organize the surface of the attapulgite, but also can improve the dispersity of the filler among polyethylene, so that the overall mechanical property and stability of the material can be improved, and the defects of no high temperature resistance, weak pressure resistance, insufficient impact resistance and the like of the traditional HDPE corrugated pipe material are overcome.
2. The surface active agent in the invention has fixed hydrophilic and oleophilic groups, can be directionally arranged on the surface of the solution, can make the surface of the prepared material smoother, and solves the defects of rough surface and poor appearance of the material.
3. The nano copper powder prepared by the method has large specific surface area, can be better dispersed in polymer frameworks, improves the interconnection degree among the polymer frameworks, solves the problem of weak polymerization force among the polymers, and improves the overall stability of the polymers.
4. The modified flame retardant prepared by the invention has good flame retardant property, can improve the ignition point of a polymer material in a comparison experiment, and overcomes the defect of low ignition point of the polymer.
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
(1) The preparation method of the filler emulsion comprises the following steps:
grinding attapulgite raw soil into powder, soaking the powder in a proper amount of dilute hydrochloric acid solution for 5-10 hours, removing filtrate, washing the powder with deionized water, performing suction filtration, putting a filter cake into an oven at 80-100 ℃, fully drying the filter cake for 10-20 hours, putting the filter cake into a muffle furnace at 400-500 ℃, calcining the filter cake for 2-3 hours, cooling the filter cake to room temperature, and grinding the calcined cake into powder to obtain modified attapulgite;
adding 5 parts by weight of saturated octadecanamide into a beaker filled with 20 parts by weight of absolute ethyl alcohol, sequentially adding 40 parts by weight of modified attapulgite, 5 parts by weight of calcium stearate and 10 parts by weight of surfactant, and stirring in a water bath at 50-60 ℃ for 1-2 hours to obtain a filler emulsion;
(2) the preparation method of the nano copper powder comprises the following steps:
dissolving 5 parts by weight of polyvinylpyrrolidone and 7 parts by weight of polyethylene glycol into a beaker filled with 30 parts by weight of deionized water, stirring for 1-2 hours at the temperature of 60-70 ℃ in a water bath until the materials are fully mixed, then adding 40 parts by weight of copper oxide particles, and mixing completely to obtain a suspension;
slowly dropwise adding ammonia water into the suspension until a colloidal solution is formed, stirring for 1-2 hours until the ammonia water is fully and uniformly mixed, pouring the mixed solution into a reaction kettle, putting the reaction kettle into an oven for reaction at 180-200 ℃ for 1-2 days, taking out the reaction kettle, cooling to room temperature, performing suction filtration, putting the reaction kettle into the oven for fully drying at 80-100 ℃ for 10-15 hours, and grinding into powder to obtain the nano copper powder;
(3) the preparation method of the modified flame retardant comprises the following steps:
sequentially adding 40 parts by weight of aluminum hydroxide powder and 10 parts by weight of sodium aluminate into a beaker filled with 30 parts by weight of deionized water, and fully and uniformly mixing for 1-2 hours to obtain aluminum hydroxide slurry;
adding a small amount of 2 parts by weight of aminopropyltrimethoxysilane into the slurry, stirring for 1-2 hours at the water bath condition of 60-70 ℃ until the mixture is fully mixed uniformly, putting the mixed solution into an oven for fully drying for 10-15 hours at the temperature of 80-100 ℃, and grinding into powder to obtain a modified flame retardant;
(4) the preparation method of the high-strength HDPE corrugated pipe material comprises the following steps:
and (2) sequentially adding 60 parts by weight of high-density polyethylene, 10 parts by weight of filler emulsion, 5 parts by weight of nano copper powder, 3 parts by weight of heat stabilizer, 4 parts by weight of modified flame retardant and 1 part by weight of other auxiliary agents into an open mill, fully mixing for 1-2 hours at 150-200 ℃, and cooling to room temperature to obtain the high-strength HDPE corrugated pipe material.
Example 2
(1) The preparation method of the filler emulsion comprises the following steps:
grinding attapulgite raw soil into powder, soaking the powder in a proper amount of dilute hydrochloric acid solution for 5-10 hours, removing filtrate, washing the powder with deionized water, performing suction filtration, putting a filter cake into an oven at 80-100 ℃, fully drying the filter cake for 10-20 hours, putting the filter cake into a muffle furnace at 400-500 ℃, calcining the filter cake for 2-3 hours, cooling the filter cake to room temperature, and grinding the calcined cake into powder to obtain modified attapulgite;
adding 10 parts by weight of saturated octadecanamide into a beaker filled with 30 parts by weight of absolute ethyl alcohol, sequentially adding 50 parts by weight of modified attapulgite, 10 parts by weight of calcium stearate and 20 parts by weight of surfactant, and stirring in a water bath at 50-60 ℃ for 1-2 hours to obtain a filler emulsion;
(2) the preparation method of the nano copper powder comprises the following steps:
dissolving 8 parts by weight of polyvinylpyrrolidone and 12 parts by weight of polyethylene glycol into a beaker filled with 40 parts by weight of deionized water, stirring for 1-2 hours at the temperature of 60-70 ℃ in a water bath until the materials are fully mixed, then adding 50 parts by weight of copper oxide particles, and mixing completely to obtain a suspension;
slowly dropwise adding ammonia water into the suspension until a colloidal solution is formed, stirring for 1-2 hours until the ammonia water is fully and uniformly mixed, pouring the mixed solution into a reaction kettle, putting the reaction kettle into an oven for reaction at 180-200 ℃ for 1-2 days, taking out the reaction kettle, cooling to room temperature, performing suction filtration, putting the reaction kettle into the oven for fully drying at 80-100 ℃ for 10-15 hours, and grinding into powder to obtain the nano copper powder;
(3) the preparation method of the modified flame retardant comprises the following steps:
sequentially adding 50 parts by weight of aluminum hydroxide powder and 20 parts by weight of sodium aluminate into a beaker filled with 40 parts by weight of deionized water, and fully and uniformly mixing for 1-2 hours to obtain aluminum hydroxide slurry;
adding a small amount of 5 parts by weight of aminopropyltrimethoxysilane into the slurry, stirring for 1-2 hours at the water bath condition of 60-70 ℃ until the mixture is fully mixed uniformly, putting the mixed solution into an oven for fully drying for 10-15 hours at the temperature of 80-100 ℃, and grinding into powder to obtain a modified flame retardant;
(4) the preparation method of the high-strength HDPE corrugated pipe material comprises the following steps:
and sequentially adding 70 parts by weight of high-density polyethylene, 20 parts by weight of filler emulsion, 10 parts by weight of nano copper powder, 5 parts by weight of heat stabilizer, 6 parts by weight of modified flame retardant and 2 parts by weight of other auxiliary agents into an open mill, fully mixing for 1-2 hours at 150-200 ℃, and cooling to room temperature to obtain the high-strength HDPE corrugated pipe material.
Example 3
(1) The preparation method of the filler emulsion comprises the following steps:
adding 10 parts by weight of saturated octadecanamide into a beaker filled with 30 parts by weight of absolute ethyl alcohol, sequentially adding 50 parts by weight of common attapulgite and 10 parts by weight of calcium stearate, and stirring in a water bath at 50-60 ℃ for 1-2 hours to obtain a filler emulsion;
(2) the preparation method of the nano copper powder comprises the following steps:
dissolving 8 parts by weight of polyvinylpyrrolidone and 12 parts by weight of polyethylene glycol into a beaker filled with 40 parts by weight of deionized water, stirring for 1-2 hours at the temperature of 60-70 ℃ in a water bath until the materials are fully mixed, then adding 50 parts by weight of copper oxide particles, and mixing completely to obtain a suspension;
slowly dropwise adding ammonia water into the suspension until a colloidal solution is formed, stirring for 1-2 hours until the ammonia water is fully and uniformly mixed, pouring the mixed solution into a reaction kettle, putting the reaction kettle into an oven for reaction at 180-200 ℃ for 1-2 days, taking out the reaction kettle, cooling to room temperature, performing suction filtration, putting the reaction kettle into the oven for fully drying at 80-100 ℃ for 10-15 hours, and grinding into powder to obtain the nano copper powder;
(3) the preparation method of the high-strength HDPE corrugated pipe material comprises the following steps:
and (2) sequentially adding 70 parts by weight of high-density polyethylene, 20 parts by weight of filler emulsion, 10 parts by weight of nano copper powder, 5 parts by weight of heat stabilizer, 6 parts by weight of common flame retardant and 2 parts by weight of other auxiliary agents into an open mill, fully mixing for 1-2 hours at 150-200 ℃, and cooling to room temperature to obtain the high-strength HDPE corrugated pipe material.
Example 4
(1) The preparation method of the filler emulsion comprises the following steps:
adding 10 parts by weight of saturated octadecanamide into a beaker filled with 30 parts by weight of absolute ethyl alcohol, sequentially adding 50 parts by weight of modified attapulgite and 10 parts by weight of calcium stearate, and stirring in a water bath at 50-60 ℃ for 1-2 hours to obtain a filler emulsion;
(2) the preparation method of the high-strength HDPE corrugated pipe material comprises the following steps:
and (2) sequentially adding 70 parts by weight of high-density polyethylene, 20 parts by weight of filler emulsion, 5 parts by weight of heat stabilizer, 6 parts by weight of common flame retardant and 2 parts by weight of other auxiliary agents into an open mill, fully mixing for 1-2 hours at 150-200 ℃, and cooling to room temperature to obtain the high-strength HDPE corrugated pipe material.
Example 5
The comprehensive properties of the material were evaluated comprehensively by testing tensile strength, flexural modulus, notched impact strength, melt index, etc., and the evaluation results are shown in Table 1.
TABLE 1 results of measurement of Properties of materials prepared in examples 1 to 4
As can be seen from Table 1: according to the invention, the formula of the filler emulsion is changed, the attapulgite is treated and acidified by dilute hydrochloric acid to prepare the filler emulsion, impurities distributed in the pore channels of the attapulgite can be removed, the specific surface area of the filler emulsion is increased, the obtained filler emulsion not only can effectively organize the surface of the attapulgite, but also can improve the dispersity of the filler among polyethylene, so that the overall mechanical property and stability of the material can be improved, and the defects of weak pressure resistance, insufficient impact resistance and the like of the traditional HDPE corrugated pipe material are overcome; the surface active agent has fixed hydrophilic and oleophilic groups and can be directionally arranged on the surface of the solution, so that the surface of the prepared material has smoother feeling, and the defects of rough surface and poor attractiveness of the material are overcome; the nano copper powder prepared by the method has large specific surface area, can be better dispersed in polymer frameworks, improves the interconnection degree among the polymer frameworks, solves the problem that the polymerization force among the polymers is weaker, and improves the overall stability of the polymers; the modified flame retardant prepared by the invention has good flame retardant property, can improve the ignition point of a polymer material in a comparison experiment, and overcomes the defect of low ignition point of the polymer.
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 (5)
1. The high-strength HDPE corrugated pipe material is characterized by comprising the following raw materials in parts by weight: 60-70 parts of high-density polyethylene, 10-20 parts of filler emulsion, 5-10 parts of nano copper powder, 3-5 parts of heat stabilizer, 4-6 parts of modified flame retardant and 1-2 parts of other additives;
the preparation steps of the high-strength HDPE corrugated pipe material are as follows:
(1) the preparation method of the filler emulsion comprises the following steps:
grinding attapulgite raw soil into powder, soaking the powder in a proper amount of dilute hydrochloric acid solution for 5-10 hours, removing filtrate, washing the powder with deionized water, performing suction filtration, putting a filter cake into an oven at 80-100 ℃, fully drying the filter cake for 10-20 hours, putting the filter cake into a muffle furnace at 400-500 ℃, calcining the filter cake for 2-3 hours, cooling the filter cake to room temperature, and grinding the calcined cake into powder to obtain modified attapulgite;
adding saturated octadecanamide into a beaker filled with absolute ethyl alcohol, sequentially adding modified attapulgite, calcium stearate and a surfactant, and stirring in a water bath at 50-60 ℃ for 1-2 hours to obtain a filler emulsion;
(2) the preparation method of the nano copper powder comprises the following steps:
dissolving polyvinylpyrrolidone and polyethylene glycol into a beaker filled with deionized water, stirring for 1-2 hours under the condition of water bath at the temperature of 60-70 ℃, then fully and uniformly mixing, adding copper oxide particles, and completely mixing to obtain a suspension;
slowly dropwise adding ammonia water into the suspension until a colloidal solution is formed, stirring for 1-2 hours until the ammonia water is fully and uniformly mixed, pouring the mixed solution into a reaction kettle, putting the reaction kettle into an oven for reaction at 180-200 ℃ for 1-2 days, taking out the reaction kettle, cooling to room temperature, performing suction filtration, putting the reaction kettle into the oven for fully drying at 80-100 ℃ for 10-15 hours, and grinding into powder to obtain the nano copper powder;
(3) the preparation method of the modified flame retardant comprises the following steps:
sequentially adding aluminum hydroxide powder and sodium aluminate into a beaker filled with deionized water, and fully and uniformly mixing for 1-2 hours to obtain aluminum hydroxide slurry;
adding a small amount of aminopropyltrimethoxysilane into the slurry, stirring for 1-2 hours at the water bath condition of 60-70 ℃ until the mixture is fully mixed uniformly, putting the mixed solution into an oven for fully drying for 10-15 hours at the temperature of 80-100 ℃, and grinding into powder to obtain a modified flame retardant;
(4) the preparation method of the high-strength HDPE corrugated pipe material comprises the following steps:
sequentially adding high-density polyethylene, filler emulsion, nano copper powder, a heat stabilizer, a modified flame retardant and other auxiliaries into an open mill, fully mixing for 1-2 hours at 150-200 ℃, and cooling to room temperature to obtain a high-strength HDPE corrugated pipe material;
the modified flame retardant is prepared from the following raw materials in parts by weight: 40-50 parts of aluminum hydroxide, 10-20 parts of sodium aluminate, 2-5 parts of aminopropyl trimethoxy silane and 30-40 parts of deionized water.
2. The high-strength HDPE corrugated pipe material as claimed in claim 1, wherein the filler emulsion is prepared from the following raw materials in parts by weight: 40-50 parts of attapulgite, 20-30 parts of absolute ethyl alcohol, 5-10 parts of saturated octadecanamide, 5-10 parts of calcium stearate and 10-20 parts of surfactant.
3. The high-strength HDPE corrugated pipe material as claimed in claim 1, wherein the nano-copper powder is prepared from the following raw materials in parts by weight: 40-50 parts of copper oxide, 5-8 parts of polyvinylpyrrolidone, 7-12 parts of polyethylene glycol and 30-40 parts of deionized water.
4. The corrugated pipe material as claimed in claim 1, wherein the inner liner of the reactor is made of polytetrafluoroethylene, the outer liner of the reactor is made of steel, and the inner liner is sealed during the reaction.
5. A preparation method of a high-strength HDPE corrugated pipe material is characterized by comprising the following steps:
(1) the preparation method of the filler emulsion comprises the following steps:
grinding attapulgite raw soil into powder, soaking the powder in a proper amount of dilute hydrochloric acid solution for 5-10 hours, removing filtrate, washing the powder with deionized water, performing suction filtration, putting a filter cake into an oven at 80-100 ℃, fully drying the filter cake for 10-20 hours, putting the filter cake into a muffle furnace at 400-500 ℃, calcining the filter cake for 2-3 hours, cooling the filter cake to room temperature, and grinding the calcined cake into powder to obtain modified attapulgite;
adding saturated octadecanamide into a beaker filled with deionized water, sequentially adding modified attapulgite, calcium stearate and a surfactant, and stirring in a water bath at 70-80 ℃ for 1-2 hours to obtain a filler emulsion;
(2) the preparation method of the nano copper powder comprises the following steps:
dissolving polyvinylpyrrolidone and polyethylene glycol into a beaker filled with deionized water, stirring for 1-2 hours under the condition of water bath at the temperature of 60-70 ℃, then fully and uniformly mixing, adding copper oxide particles, and completely mixing to obtain a suspension;
slowly dropwise adding ammonia water into the suspension until a colloidal solution is formed, stirring for 1-2 hours until the ammonia water is fully and uniformly mixed, pouring the mixed solution into a reaction kettle, putting the reaction kettle into an oven for reaction at 180-200 ℃ for 1-2 days, taking out the reaction kettle, cooling to room temperature, performing suction filtration, putting the reaction kettle into the oven for fully drying at 80-100 ℃ for 10-15 hours, and grinding into powder to obtain the nano copper powder;
(3) the preparation method of the modified flame retardant comprises the following steps:
sequentially adding aluminum hydroxide powder and sodium aluminate into a beaker filled with deionized water, and fully and uniformly mixing for 1-2 hours to obtain aluminum hydroxide slurry;
adding a small amount of aminopropyltrimethoxysilane into the slurry, stirring for 1-2 hours at the water bath condition of 60-70 ℃ until the mixture is fully mixed uniformly, putting the mixed solution into an oven for fully drying for 10-15 hours at the temperature of 80-100 ℃, and grinding into powder to obtain a modified flame retardant;
(4) the preparation method of the high-strength HDPE corrugated pipe material comprises the following steps:
sequentially adding high-density polyethylene, filler emulsion, nano copper powder, a heat stabilizer, a modified flame retardant and other auxiliaries into an open mill, fully mixing for 1-2 hours at 150-200 ℃, and cooling to room temperature to obtain a high-strength HDPE corrugated pipe material;
the modified flame retardant is prepared from the following raw materials in parts by weight: 40-50 parts of aluminum hydroxide, 10-20 parts of sodium aluminate, 2-5 parts of aminopropyl trimethoxy silane and 30-40 parts of deionized water.
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| CN105176142A (en) * | 2015-08-31 | 2015-12-23 | 山东林嘉新材料科技有限公司 | Modification method for aluminum hydroxide |
| CN107116229A (en) * | 2016-02-25 | 2017-09-01 | 新材料与产业技术北京研究院 | A kind of copper nanoparticle and preparation method thereof |
| CN108517060A (en) * | 2018-03-20 | 2018-09-11 | 繁昌县聚恒智能装备有限公司 | A kind of shock resistance polyethylene corrugated tube material and preparation method thereof |
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| CN105176142A (en) * | 2015-08-31 | 2015-12-23 | 山东林嘉新材料科技有限公司 | Modification method for aluminum hydroxide |
| CN107116229A (en) * | 2016-02-25 | 2017-09-01 | 新材料与产业技术北京研究院 | A kind of copper nanoparticle and preparation method thereof |
| CN108517060A (en) * | 2018-03-20 | 2018-09-11 | 繁昌县聚恒智能装备有限公司 | A kind of shock resistance polyethylene corrugated tube material and preparation method thereof |
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Application publication date: 20190122 Assignee: ANHUI YUFA PLASTIC INDUSTRY Co.,Ltd. Assignor: ANQING YUEFA PIPE INDUSTRY CO.,LTD. Contract record no.: X2023980042968 Denomination of invention: A high-strength HDPE corrugated pipe material and its preparation method Granted publication date: 20210112 License type: Common License Record date: 20231011 |
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Denomination of invention: A high-strength HDPE corrugated pipe material and its preparation method Granted publication date: 20210112 Pledgee: China Postal Savings Bank Co.,Ltd. Huaining County Branch Pledgor: ANQING YUEFA PIPE INDUSTRY CO.,LTD. Registration number: Y2024980009889 |