CN112341693B - Nontoxic environment-friendly PE water pipe and production method thereof - Google Patents
Nontoxic environment-friendly PE water pipe and production method thereof Download PDFInfo
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 231100000252 nontoxic Toxicity 0.000 title claims abstract description 29
- 230000003000 nontoxic effect Effects 0.000 title claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 239000004698 Polyethylene Substances 0.000 claims abstract description 137
- 229920000573 polyethylene Polymers 0.000 claims abstract description 122
- -1 polyethylene Polymers 0.000 claims abstract description 37
- 239000004609 Impact Modifier Substances 0.000 claims abstract description 24
- 239000007822 coupling agent Substances 0.000 claims abstract description 24
- 239000000945 filler Substances 0.000 claims abstract description 19
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 15
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 15
- 239000000314 lubricant Substances 0.000 claims abstract description 15
- 239000003381 stabilizer Substances 0.000 claims abstract description 15
- 239000000203 mixture Substances 0.000 claims description 25
- 239000000463 material Substances 0.000 claims description 15
- 238000001035 drying Methods 0.000 claims description 13
- 238000002844 melting Methods 0.000 claims description 13
- 230000008018 melting Effects 0.000 claims description 13
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 11
- 229920001684 low density polyethylene Polymers 0.000 claims description 10
- 239000004702 low-density polyethylene Substances 0.000 claims description 10
- 239000011265 semifinished product Substances 0.000 claims description 10
- 239000000047 product Substances 0.000 claims description 9
- 238000001125 extrusion Methods 0.000 claims description 8
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 6
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 5
- 239000011363 dried mixture Substances 0.000 claims description 5
- 230000007613 environmental effect Effects 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical group CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims description 4
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical group [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims description 4
- 229920001903 high density polyethylene Polymers 0.000 claims description 3
- 239000004700 high-density polyethylene Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 abstract description 45
- 239000004033 plastic Substances 0.000 abstract description 45
- 239000000126 substance Substances 0.000 abstract description 9
- 230000035939 shock Effects 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 description 15
- 230000000052 comparative effect Effects 0.000 description 10
- 239000002585 base Substances 0.000 description 6
- 230000003647 oxidation Effects 0.000 description 6
- 238000007254 oxidation reaction Methods 0.000 description 6
- 230000006378 damage Effects 0.000 description 5
- 231100000956 nontoxicity Toxicity 0.000 description 5
- 239000004743 Polypropylene Substances 0.000 description 3
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 3
- 230000002706 hydrostatic effect Effects 0.000 description 3
- 229920001179 medium density polyethylene Polymers 0.000 description 3
- 239000004701 medium-density polyethylene Substances 0.000 description 3
- TXSUIVPRHHQNTM-UHFFFAOYSA-N n'-(3-methylanilino)-n-phenyliminobenzenecarboximidamide Chemical compound CC1=CC=CC(NN=C(N=NC=2C=CC=CC=2)C=2C=CC=CC=2)=C1 TXSUIVPRHHQNTM-UHFFFAOYSA-N 0.000 description 3
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 239000003431 cross linking reagent Substances 0.000 description 2
- 238000010128 melt processing Methods 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- 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
- C08L2201/08—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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/06—Polymer mixtures characterised by other features having improved processability or containing aids for moulding methods
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
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- Compositions Of Macromolecular Compounds (AREA)
Abstract
The application relates to the field of plastic products, in particular to a nontoxic environment-friendly PE water pipe and a production method thereof, wherein the PE water pipe comprises the following components in parts by weight: 80-100 parts of polyethylene, 1-2 parts of coupling agent, 5-10 parts of impact modifier, 1-3 parts of lubricant, 1-2 parts of stabilizer, 3-6 parts of filler and 1-3 parts of antioxidant. The PE pipe has the advantages of good shock resistance, and reduced content of substances harmful to human bodies in the PE plastic water pipe.
Description
Technical Field
The application relates to the field of plastic products, in particular to a nontoxic environment-friendly PE water pipe and a production method thereof.
Background
Polyethylene (PE) is a thermoplastic resin obtained by polymerizing ethylene. Polyethylene is odorless, nontoxic, wax-like in hand feeling, excellent in low temperature resistance (the lowest use temperature can reach-100 to-70 ℃), good in chemical stability, and resistant to most of acid and alkali attack (not resistant to acid with oxidation property). Is insoluble in common solvents at normal temperature, has small water absorption and excellent electrical insulation.
In general, when a pipe made of PE plastic is used as a water pipe, in order to ensure the safety of a water source, additives harmful to human bodies such as a cross-linking agent are not added into PE plastic, but the shock resistance of the PE plastic water pipe without the cross-linking agent is generally poor, and the pipe is easily broken when being subjected to a large external or internal impact force, so that the application range of the pipe is small. Therefore, how to make the PE water pipe have good impact resistance, and at the same time, to reduce the content of substances harmful to human body in the PE plastic water pipe as much as possible is a problem to be solved.
Disclosure of Invention
In order to ensure that the PE plastic water pipe has good shock resistance and simultaneously reduce the content of substances harmful to human bodies in the PE plastic water pipe as much as possible, the application provides a nontoxic environment-friendly PE water pipe and a production method thereof.
In a first aspect, the application provides a nontoxic environment-friendly PE water pipe, which adopts the following technical scheme: the nontoxic environment-friendly PE water pipe comprises the following components in parts by weight: 80-100 parts of polyethylene, 1-2 parts of coupling agent, 5-10 parts of impact modifier, 1-3 parts of lubricant, 1-2 parts of stabilizer, 3-6 parts of filler and 1-3 parts of antioxidant.
By adopting the technical scheme, the PE water pipe takes polyethylene as a base material, and the coupling agent is added to improve the bonding degree between polyethylene base materials and between the base material and the filler, and improve the strength, the tensile resistance and the like of PE plastic; the impact modifier is added to improve the impact resistance of PE plastic, so that the PE plastic is not easy to damage when receiving a larger impact force, and the use stability of a PE water pipe is improved; the lubricant is added to reduce the viscosity and fluidity of PE plastic, thereby facilitating the melting and extrusion molding processing of the plastic; the chemical stability of PE plastic is improved by adding a stabilizer; the filler is added to reduce the dosage of polyethylene, reduce the production cost and simultaneously not easily influence the physical properties of PE plastic; the antioxidant is used for improving the oxidation resistance of PE plastic; by the combination of the components, the strength, toughness, impact resistance, tensile resistance, corrosion resistance, waterproof performance, oxidation resistance and other performances of the PE plastic water pipe are enhanced, and simultaneously, the components are all made of nontoxic materials during addition, so that the content of substances harmful to human bodies and natural environments in the PE water pipe can be effectively reduced, and the prepared PE water pipe has the advantages of no toxicity and environmental protection.
Preferably, the polyethylene consists of (1-3) by weight: the high-density polyethylene and the low-density polyethylene of (1-2) are mixed.
By adopting the technical scheme, the PE water pipe is formed by mixing the high-density polyethylene and the low-density polyethylene, so that the PE water pipe has good hardness and wear resistance, and good flexibility and extensibility, so that the PE water pipe has good comprehensive performance, is not easy to excessively rigid but not excessively flexible, improves the stability of the PE water pipe in use, is a nontoxic material, and has the advantages of no toxicity and environmental protection.
Preferably, the coupling agent is a monoalkoxytitanate coupling agent.
By adopting the technical scheme, the monoalkoxy titanate coupling agent is used as the coupling agent, so that the dispersity of the filler is improved, the binding force between the filler and the polyethylene is improved, and the strength, the tensile property and the like of PE plastic are further improved.
Preferably, the impact modifier is an MBS impact modifier.
By adopting the technical scheme, the MBS impact modifier is adopted as the plastic impact modifier, so that the impact resistance of the PE plastic water pipe is effectively improved, and the impact bearing capacity of the PE plastic water pipe is enhanced.
Preferably, the lubricant is polyethylene wax.
By adopting the technical scheme, the polyethylene wax is used as the lubricant, the dispersibility of each component additive in the polyethylene base material is improved, and the adhesiveness of PE plastic after melting is improved, so that the subsequent extrusion molding is convenient, and meanwhile, the PE plastic is a nontoxic material, and the prepared PE water pipe has the advantages of no toxicity and environmental protection.
Preferably, the stabilizer is zinc stearate.
By adopting the technical scheme, the zinc stearate is used as the stabilizer to improve the thermal stability of the PE plastic, so that the stability of the PE plastic in melt processing is improved, the PE plastic does not contain heavy metal ions, and is not easy to cause harm to human bodies and natural environments.
Preferably, the filler is nano calcium carbonate.
By adopting the technical scheme, the nano calcium carbonate is used as the filler, is dispersed and filled in the PE plastic, so that the chemical stability of the PE plastic is effectively improved, the hardness and rigidity of the plastic can be improved, the consumption of polyethylene is reduced, the price of the nano calcium carbonate is lower, the production cost of the PE plastic is effectively reduced, the nano calcium carbonate is nontoxic, and the harm to human bodies and natural environments is lower.
Preferably, the antioxidant is antioxidant 1010.
By adopting the technical scheme, the antioxidant 1010 is used as an antioxidant with wide application, can obviously improve the oxidation resistance of plastic products, effectively prolongs the service life of the plastic products, has high thermal stability and no toxicity, and reduces the harm to human bodies and natural environments.
In a second aspect, the application also provides a production method of the nontoxic environment-friendly PE water pipe, which adopts the following technical scheme:
a method for producing a non-toxic and environment-friendly PE water pipe, which is used for producing the non-toxic and environment-friendly PE water pipe described above, and comprises the following steps:
s1: mixing: stirring and mixing the formula materials of the PE water pipe according to a proportion to obtain a uniform mixture;
s2: and (3) drying: drying the mixture obtained in the step S1 at the drying temperature of 60-80 ℃ to ensure that the water content of the dried mixture is lower than 0.02%;
s3: extrusion molding: melting the mixture obtained in the step S2, extruding and molding the mixture, wherein the melting temperature is 190-220 ℃, and cooling the mixture to obtain a PE pipe semi-finished product;
s4: and (3) cutting the PE pipe semi-finished product obtained in the step (S3) into a required length dimension according to the requirement to obtain a PE pipe finished product.
By adopting the technical scheme, the PE plastic water pipe produced by adopting the steps is mutually matched with each other in the processing process to improve physical properties such as impact resistance and the like of the PE water pipe and chemical properties such as oxidation resistance and the like, each component is a nontoxic material, and simultaneously, each component is not easy to decompose in the melt processing process to generate toxic components, so that the prepared PE plastic water pipe has the advantages of no toxicity and environmental protection.
In summary, the present application includes at least one of the following beneficial technical effects:
1. according to the PE water pipe, polyethylene is used as a base material, a coupling agent is added to improve the combination degree of the polyethylene base material and a filler, the strength, the tensile property and the like of PE plastic are improved, an impact modifier is added to improve the impact resistance of the PE plastic, so that the PE plastic is not easy to damage when the PE plastic is subjected to larger impact force, the use stability of the PE water pipe is improved, a lubricant is added to reduce the viscosity and the fluidity of the PE plastic when the PE plastic is melted, thereby facilitating the melting and extrusion molding processing of the plastic, a stabilizer is added to improve the chemical stability of the PE plastic, a filler is added to reduce the dosage of the polyethylene, the physical property of the PE plastic is not easily influenced at the same time, and an antioxidant is used to improve the oxidation resistance of the PE plastic.
2. The PE water pipe has better hardness and wear resistance, and has certain flexibility and extensibility, so that the PE water pipe has good comprehensive performance, is not easy to excessively rigid and excessively soft, and improves the stability of the PE water pipe in use.
Detailed Description
The application is described in further detail below with reference to examples, which are: the following examples, in which no particular condition is noted, are conducted under conventional conditions or conditions recommended by the manufacturer, and all raw materials except for the specific descriptions are commercially available in general.
Examples
Example 1
The embodiment discloses a nontoxic environment-friendly PE water pipe, which comprises the following components in parts by weight: 80g of polyethylene, 1g of coupling agent, 5g of impact modifier, 1g of lubricant, 1g of stabilizer, 3g of filler and 1g of antioxidant.
Wherein, the polyethylene adopts medium density polyethylene, the coupling agent adopts 311W titanate coupling agent, the impact modifier adopts ACR impact modifier, the lubricant adopts low molecular weight polypropylene, the stabilizer adopts calcium ricinoleate, the filler adopts talcum powder, and the antioxidant adopts antioxidant 1076.
The embodiment also provides a production method of the nontoxic environment-friendly PE water pipe, which comprises the following steps:
s1: mixing: stirring and mixing the formula materials of the PE water pipe according to a proportion to obtain a uniform mixture;
s2: and (3) drying: drying the mixture obtained in the step S1 at a drying temperature of 60 ℃ to ensure that the water content of the dried mixture is lower than 0.02%;
s3: extrusion molding: and (2) melting the mixture obtained in the step (S2), extruding and molding the mixture, wherein the melting temperature is 190 ℃, and cooling the mixture to obtain a PE pipe semi-finished product;
s4: and (3) cutting the PE pipe semi-finished product obtained in the step (S3) into a required length dimension according to the requirement to obtain a PE pipe finished product.
Example 2
The embodiment discloses a nontoxic environment-friendly PE water pipe, which comprises the following components in parts by weight: 90g of polyethylene, 1.5g of coupling agent, 8g of impact modifier, 2g of lubricant, 1.5g of stabilizer, 5g of filler and 2g of antioxidant.
Wherein, the polyethylene adopts medium density polyethylene, the coupling agent adopts 311W titanate coupling agent, the impact modifier adopts ACR impact modifier, the lubricant adopts low molecular weight polypropylene, the stabilizer adopts calcium ricinoleate, the filler adopts talcum powder, and the antioxidant adopts antioxidant 1076.
The embodiment also provides a production method of the nontoxic environment-friendly PE water pipe, which comprises the following steps:
s1: mixing: stirring and mixing the formula materials of the PE water pipe according to a proportion to obtain a uniform mixture;
s2: and (3) drying: drying the mixture obtained in the step S1 at 70 ℃ to ensure that the water content of the dried mixture is lower than 0.02%;
s3: extrusion molding: and (2) melting the mixture obtained in the step (S2), extruding and molding the mixture, wherein the melting temperature is 210 ℃, and cooling the mixture to obtain a PE pipe semi-finished product;
s4: and (3) cutting the PE pipe semi-finished product obtained in the step (S3) into a required length dimension according to the requirement to obtain a PE pipe finished product.
Example 3
The embodiment discloses a nontoxic environment-friendly PE water pipe, which comprises the following components in parts by weight: 100g of polyethylene, 2g of coupling agent, 10g of impact modifier, 3g of lubricant, 2g of stabilizer, 6g of filler and 3g of antioxidant.
Wherein, the polyethylene adopts medium density polyethylene, the coupling agent adopts 311W titanate coupling agent, the impact modifier adopts ACR impact modifier, the lubricant adopts low molecular weight polypropylene, the stabilizer adopts calcium ricinoleate, the filler adopts talcum powder, and the antioxidant adopts antioxidant 1076.
The embodiment also provides a production method of the nontoxic environment-friendly PE water pipe, which comprises the following steps:
s1: mixing: stirring and mixing the formula materials of the PE water pipe according to a proportion to obtain a uniform mixture;
s2: and (3) drying: drying the mixture obtained in the step S1 at 80 ℃ to ensure that the water content of the dried mixture is lower than 0.02%;
s3: extrusion molding: and (2) melting the mixture obtained in the step (S2), extruding and molding the mixture, wherein the melting temperature is 220 ℃, and cooling the mixture to obtain a PE pipe semi-finished product;
s4: and (3) cutting the PE pipe semi-finished product obtained in the step (S3) into a required length dimension according to the requirement to obtain a PE pipe finished product.
Example 4
This embodiment differs from embodiment 2 in that: the polyethylene adopts the weight ratio of 1:1 and a low density polyethylene.
Example 5
This embodiment differs from embodiment 2 in that: the polyethylene adopts the weight ratio of 1:1.5 and a low density polyethylene.
Example 6
This embodiment differs from embodiment 2 in that: the polyethylene adopts the weight ratio of 1:2 and the low-density polyethylene.
Example 7
This embodiment differs from embodiment 2 in that: the polyethylene adopts the weight ratio of 2:1 and a low density polyethylene.
Example 8
This embodiment differs from embodiment 2 in that: the polyethylene adopts the weight ratio of 2:1.5 and a low density polyethylene.
Example 9
This embodiment differs from embodiment 2 in that: the polyethylene adopts the weight ratio of 3:1 and a low density polyethylene.
Example 10
This embodiment differs from embodiment 2 in that: the polyethylene adopts the weight ratio of 3:2 and the low-density polyethylene.
Example 11
This embodiment differs from embodiment 6 in that: the coupling agent is monoalkoxy titanate coupling agent.
Example 12
This embodiment differs from embodiment 11 in that: the impact modifier is an MBS impact modifier.
Example 13
This embodiment differs from embodiment 12 in that: the lubricant is polyethylene wax.
Example 14
This embodiment differs from embodiment 13 in that: the stabilizer is zinc stearate.
Example 15
This embodiment differs from embodiment 14 in that: the filler is nano calcium carbonate.
Example 16
This embodiment differs from embodiment 15 in that: the antioxidant is antioxidant 1010.
Comparative example 1
The comparative example used a commercially available PE water pipe (available from Zhenjiang Rong Cheng pipe Co., ltd.).
Comparative example 2
The difference between this comparative example and example 2 is that: no impact modifier was added.
Comparative example 3
The difference between this comparative example and example 2 is that: no coupling agent was added.
Comparative example 4
The difference between this comparative example and example 2 is that: no coupling agent and no impact modifier were added.
Performance testing
The PE water pipe finished products in examples 1-16 and comparative examples 1-4 are selected as test samples, the test samples are sequentially corresponding to groups 1-20, 12 test samples are selected for each group, each group of test samples is divided into four parts, the four samples of each group are respectively and correspondingly subjected to a tensile yield strength test, an elongation at break test, a hydrostatic test (80 ℃ C., 5.5MPa, 165 h) and an impact strength test, test data are recorded, the test data of test items corresponding to each test sample are averaged, and the test results are shown in Table 1:
table 1 test result record table
As can be seen from the analysis in Table 1, the PE water pipes produced in examples 1 to 16 were higher in tensile yield strength, elongation at break, hydrostatic pressure (80 ℃ C., 5.5MPa, 165 h) bearing capacity and impact strength bearing capacity than those of comparative examples 1 to 4, and the PE water pipes produced in example 16 were higher in terms of each item than those produced in examples 1 to 15, so that the PE water pipes produced by the production method in example 16 had the maximum tensile yield strength, elongation at break, hydrostatic pressure (80 ℃ C., 5.5MPa, 165 h) bearing capacity and impact strength bearing capacity.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (6)
1. Nontoxic environmental protection PE water pipe, its characterized in that: comprises the following components in parts by weight: 80-100 parts of polyethylene, 1-2 parts of coupling agent, 5-10 parts of impact modifier, 1-3 parts of lubricant, 1-2 parts of stabilizer, 3-6 parts of filler and 1-3 parts of antioxidant;
the weight ratio of the polyethylene to the polyethylene is (1-3): the high-density polyethylene and the low-density polyethylene of the (1-2) are mixed;
the coupling agent is 311w titanate coupling agent;
the impact modifier is an ACR impact modifier.
2. The non-toxic and environmentally friendly PE water pipe according to claim 1, characterized in that: the lubricant is polyethylene wax.
3. The non-toxic and environmentally friendly PE water pipe according to claim 1, characterized in that: the stabilizer is zinc stearate.
4. The non-toxic and environmentally friendly PE water pipe according to claim 1, characterized in that: the filler is nano calcium carbonate.
5. The non-toxic and environmentally friendly PE water pipe according to claim 1, characterized in that: the antioxidant is antioxidant 1010.
6. The production method of the nontoxic environment-friendly PE water pipe is characterized by comprising the following steps of: a process for producing the non-toxic and environmentally friendly PE water pipe according to claims 1-5, comprising the steps of:
s1: mixing: stirring and mixing the formula materials of the PE water pipe according to a proportion to obtain a uniform mixture;
s2: and (3) drying: drying the mixture obtained in the step S1 at the drying temperature of 60-80 ℃ to ensure that the water content of the dried mixture is lower than 0.02%;
s3: extrusion molding: melting the mixture obtained in the step S2, extruding and molding the mixture, wherein the melting temperature is 190-220 ℃, and cooling the mixture to obtain a PE pipe semi-finished product;
s4: and (3) cutting the PE pipe semi-finished product obtained in the step (S3) into a required length dimension according to the requirement to obtain a PE pipe finished product.
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