CN114573926A - PVC water supply pipe and preparation method thereof - Google Patents
PVC water supply pipe and preparation method thereof Download PDFInfo
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- CN114573926A CN114573926A CN202210338871.9A CN202210338871A CN114573926A CN 114573926 A CN114573926 A CN 114573926A CN 202210338871 A CN202210338871 A CN 202210338871A CN 114573926 A CN114573926 A CN 114573926A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 238000002360 preparation method Methods 0.000 title description 5
- 239000004800 polyvinyl chloride Substances 0.000 claims abstract description 47
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 46
- 239000003381 stabilizer Substances 0.000 claims abstract description 34
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 33
- 239000012763 reinforcing filler Substances 0.000 claims abstract description 26
- 239000012745 toughening agent Substances 0.000 claims abstract description 26
- 239000000049 pigment Substances 0.000 claims abstract description 25
- 238000005282 brightening Methods 0.000 claims abstract description 8
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 38
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 claims description 30
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 30
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 claims description 30
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 19
- 229920001577 copolymer Polymers 0.000 claims description 17
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 16
- 239000008116 calcium stearate Substances 0.000 claims description 16
- 235000013539 calcium stearate Nutrition 0.000 claims description 16
- 239000004698 Polyethylene Substances 0.000 claims description 15
- -1 polyethylene Polymers 0.000 claims description 15
- 229920000573 polyethylene Polymers 0.000 claims description 15
- 239000002994 raw material Substances 0.000 claims description 15
- NTXGQCSETZTARF-UHFFFAOYSA-N buta-1,3-diene;prop-2-enenitrile Chemical compound C=CC=C.C=CC#N NTXGQCSETZTARF-UHFFFAOYSA-N 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 11
- 229920005604 random copolymer Polymers 0.000 claims description 11
- 238000001125 extrusion Methods 0.000 claims description 10
- 229920003023 plastic Polymers 0.000 claims description 10
- 239000004033 plastic Substances 0.000 claims description 10
- IHBCFWWEZXPPLG-UHFFFAOYSA-N [Ca].[Zn] Chemical group [Ca].[Zn] IHBCFWWEZXPPLG-UHFFFAOYSA-N 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- 235000021355 Stearic acid Nutrition 0.000 claims description 6
- IRERQBUNZFJFGC-UHFFFAOYSA-L azure blue Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[S-]S[S-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-] IRERQBUNZFJFGC-UHFFFAOYSA-L 0.000 claims description 6
- 239000000498 cooling water Substances 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 6
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 6
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 6
- 239000008117 stearic acid Substances 0.000 claims description 6
- 239000006229 carbon black Substances 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- LDVVTQMJQSCDMK-UHFFFAOYSA-N 1,3-dihydroxypropan-2-yl formate Chemical compound OCC(CO)OC=O LDVVTQMJQSCDMK-UHFFFAOYSA-N 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000007797 corrosion Effects 0.000 abstract description 5
- 238000005260 corrosion Methods 0.000 abstract description 5
- 229920009204 Methacrylate-butadiene-styrene Polymers 0.000 description 14
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 12
- 239000000463 material Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000009863 impact test Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004870 electrical engineering Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
-
- 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
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a PVC water supply pipe, which comprises polyvinyl chloride, a stabilizer, an opening agent, an impact-resistant toughening agent, a brightening agent, a reinforcing filler and pigment; the weight parts of the components are as follows: 200-300 parts of polyvinyl chloride, 5-15 parts of stabilizer, 3-12 parts of opening agent, 5-30 parts of impact-resistant toughening agent, 8-30 parts of reinforcing filler and 4-12 parts of pigment. The water supply pipe has the advantages of strong low-temperature impact resistance, good mechanical property, strong corrosion resistance and simple manufacturing process, can utilize the original manufacturing equipment or device, does not need to add extra equipment investment, and is easier to popularize and apply.
Description
Technical Field
The invention belongs to the field of polymer composite materials, and particularly relates to a water supply pipe.
Background
Polyvinyl chloride (PVC) has many advantages such as strong corrosion resistance, good flame retardancy, high mechanical strength, light weight, good temperature adaptability and water tightness, and is widely used in the fields of pipes, mulching films, electrical engineering materials, corrosion-resistant materials, construction industry materials, and the like, and at present, about 70% of PVC pipes are used in the construction fields such as drainage/water supply, and the like.
The PVC water supply pipe is produced by using sanitary polyvinyl chloride resin as main material, adding certain amount of stabilizer, lubricant, filler, coloring agent, etc. and through extrusion in plastic extruder, injection in injection molding machine, cooling, solidification, setting, inspection, packing and other steps.
However, the biggest defect of the PVC pipe is that the low-temperature impact resistance is poor, which greatly limits the application of the PVC pipe, for example, when the PVC pipe is used in northern areas of China, brittle fracture is easy to occur in winter, so that a novel low-temperature toughened PVC pipe is needed to meet the requirements of people.
Disclosure of Invention
The invention mainly solves the technical problem of providing various PVC water supply pipes and a preparation method thereof, the water supply pipes have strong low-temperature impact resistance, good mechanical property, strong corrosion resistance and simple manufacturing process, can utilize original manufacturing equipment or devices, does not need to increase extra equipment investment, and is easier to popularize and apply.
In order to solve the technical problems, the invention adopts a technical scheme that: the invention provides a PVC water supply pipe, which comprises polyvinyl chloride, a stabilizer, an opening agent, an impact-resistant toughening agent, a brightening agent, a reinforcing filler and pigment;
the weight parts of the components are as follows: 300 parts of polyvinyl chloride 200-one, 5-15 parts of stabilizer, 3-12 parts of opening agent, 5-30 parts of impact-resistant toughening agent, 8-30 parts of reinforcing filler and 4-12 parts of pigment.
Further, the reinforcing filler is prepared from the following raw materials in parts by weight: 3-6 parts of nano calcium stearate, 100 parts of water and 150 parts of nano calcium carbonate and 0.03-1 part of nano calcium carbonate.
Further, the particle diameters of the nano calcium stearate and the nano calcium carbonate are 500-5000 nm.
Further, the impact-resistant toughening agent comprises methyl methacrylate-butadiene-styrene copolymer (MBS), acrylonitrile-butadiene-styrene copolymer (ABS) and acrylonitrile-butadiene random copolymer (NBR), and the weight ratio of the methyl acrylate-butadiene-styrene copolymer (MBS) to the acrylonitrile-butadiene-styrene copolymer (ABS) to the acrylonitrile-butadiene random copolymer (NBR) is 1: 1-2: 1-2.
Further, the stabilizer is a calcium zinc stabilizer.
Further, the opening agent is selected from at least one of monoglyceride, stearic acid, oxidized polyethylene, and polyethylene wax.
Further, the pigment is carbon black or ultramarine.
The invention also provides a preparation method of the PVC water supply pipe, which comprises the following steps:
s1, putting the raw materials into a plastic hot mixer according to the mixture ratio, then sequentially adding polyvinyl chloride, a stabilizer, an opening agent, an impact-resistant toughening agent, a brightening agent, a reinforcing filler and a pigment, fully mixing in the plastic hot mixer, when the temperature reaches 100 ℃ and 120 ℃, putting the mixture into a cold mixer for cooling, and cooling to below 35 ℃;
s2, putting the cooled mixture into a plastic extrusion forming machine for extrusion forming processing, and sending the pipe subjected to extrusion forming processing into a cooling water tank for cooling and shaping;
s3, drawing the cooled and shaped pipe out of the cooling water tank by using a tractor;
and S4, conveying the pipe into a cutting machine, and cutting the pipe into pipes with certain lengths according to the process requirements to obtain the water supply pipe.
Furthermore, the wall thickness of the water supply pipe is 3.45-4.00mm, and the average wall thickness of six circumferential points is 3.55 mm;
the density is 1.39-1.45kg/m3Ring stiffness SN4 is more than or equal to 4KN/n2And SN8 is more than or equal to 8KN/n2。
Further, the Vicat softening temperature is more than 80 ℃; the longitudinal retraction rate is less than or equal to 5 percent.
The invention has the beneficial effects that:
the water supply pipe comprises polyvinyl chloride, a stabilizer, an opening agent, an impact-resistant toughening agent, a brightening agent, a reinforcing filler and a pigment, wherein the impact-resistant toughening agent is selected from a methyl acrylate-butadiene-styrene copolymer, an acrylonitrile-butadiene-styrene copolymer and an acrylonitrile-butadiene random copolymer, the proportion of each component is reasonable, the reinforcing filler is nano-scale particles, and the water supply pipe has strong low-temperature impact resistance, good mechanical property and strong corrosion resistance;
and the manufacturing process is simple, the original manufacturing equipment or device can be utilized, extra equipment investment is not required to be added, and the method is easy to popularize and apply.
The foregoing is a summary of the present invention, and in order to provide a clear understanding of the technical means of the present invention and to be implemented in accordance with the present specification, the following is a detailed description of the preferred embodiments of the present invention.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and the present invention will be described in detail with reference to the accompanying drawings. The invention may be embodied in other different forms, i.e. it is capable of various modifications and changes without departing from the scope of the invention as disclosed.
A PVC water supply pipe comprises polyvinyl chloride, a stabilizer, an opening agent, an impact-resistant toughening agent, a brightening agent, a reinforcing filler and pigment;
the weight parts of the components are as follows: 300 parts of polyvinyl chloride 200-one, 5-15 parts of stabilizer, 3-12 parts of opening agent, 5-30 parts of impact-resistant toughening agent, 8-30 parts of reinforcing filler and 4-12 parts of pigment.
The reinforcing filler is prepared from the following raw materials in parts by weight: 3-6 parts of nano calcium stearate, 100 parts of water and 150 parts of nano calcium carbonate and 0.03-1 part of nano calcium carbonate.
The particle diameters of the nano calcium stearate and the nano calcium carbonate are 500-5000 nm.
The impact-resistant toughening agent comprises methyl methacrylate-butadiene-styrene copolymer (MBS), acrylonitrile-butadiene-styrene copolymer (ABS) and acrylonitrile-butadiene random copolymer (NBR), and the weight ratio of the methyl acrylate to the butadiene-styrene copolymer (MBS) to the acrylonitrile-butadiene-styrene copolymer (ABS) is 1: 1-2: 1-2.
The stabilizer is a calcium zinc stabilizer.
The opening agent is at least one selected from monoglyceride, stearic acid, oxidized polyethylene and polyethylene wax.
The pigment is carbon black or ultramarine.
Specific examples are as follows:
example 1: a PVC water supply pipe comprises the following raw materials in parts by weight: 200 parts of polyvinyl chloride, 8 parts of a stabilizer, 9 parts of an opening agent, 15 parts of an impact-resistant toughening agent, 30 parts of a reinforcing filler and 4 parts of a pigment.
The reinforcing filler is prepared from the following raw materials in parts by weight: 3 parts of nano calcium stearate, 100 parts of water and 0.03 part of nano calcium carbonate.
The particle size of the nano calcium stearate and the nano calcium carbonate is 500 nm.
The impact-resistant toughening agent comprises methyl methacrylate-butadiene-styrene copolymer (MBS), acrylonitrile-butadiene-styrene copolymer (ABS) and acrylonitrile-butadiene random copolymer (NBR), and the weight ratio of the methyl acrylate to the butadiene-styrene copolymer (MBS) to the acrylonitrile-butadiene-styrene copolymer (ABS) is 1: 1: 1.
the stabilizer is a calcium zinc stabilizer.
The opening agent is selected from monoglyceride.
The pigment is carbon black.
Example 2: a PVC water supply pipe comprises the following raw materials in parts by weight: 300 parts of polyvinyl chloride, 5 parts of a stabilizer, 3 parts of an opening agent, 30 parts of an impact-resistant toughening agent, 8 parts of a reinforcing filler and 10 parts of a pigment.
The reinforcing filler is prepared from the following raw materials in parts by weight: 6 parts of nano calcium stearate, 120 parts of water and 0.06 part of nano calcium carbonate.
The particle size of the nano calcium stearate and the nano calcium carbonate is 1000 nm.
The impact-resistant toughening agent comprises methyl methacrylate-butadiene-styrene copolymer (MBS), acrylonitrile-butadiene-styrene copolymer (ABS) and acrylonitrile-butadiene random copolymer (NBR), and the weight ratio of the methyl acrylate to the butadiene-styrene copolymer (MBS) to the acrylonitrile-butadiene-styrene copolymer (ABS) is 1: 2: 1.
the stabilizer is a calcium zinc stabilizer.
The opening agent is selected from stearic acid.
The pigment is ultramarine.
Example 3: a PVC water supply pipe comprises the following raw materials in parts by weight: 250 parts of polyvinyl chloride, 15 parts of stabilizer, 6 parts of opening agent, 25 parts of impact-resistant toughening agent, 15 parts of reinforcing filler and 12 parts of pigment.
The reinforcing filler is prepared from the following raw materials in parts by weight: 4 parts of nano calcium stearate, 130 parts of water and 0.07 part of nano calcium carbonate.
The particle size of the nano calcium stearate and the nano calcium carbonate is 2000 nm.
The impact-resistant toughening agent comprises methyl methacrylate-butadiene-styrene copolymer (MBS), acrylonitrile-butadiene-styrene copolymer (ABS) and acrylonitrile-butadiene random copolymer (NBR), and the weight ratio of the methyl acrylate to the butadiene-styrene copolymer (MBS) to the acrylonitrile-butadiene-styrene copolymer (ABS) is 1: 1.2: 1.5.
the stabilizer is a calcium zinc stabilizer.
The opening agent is selected from oxidized polyethylene.
The pigment is ultramarine.
Example 4: a PVC water supply pipe comprises the following raw materials in parts by weight: the coating comprises the following components, by weight, 220 parts of polyvinyl chloride, 6 parts of a stabilizer, 12 parts of an opening agent, 20 parts of an impact-resistant toughening agent, 20 parts of a reinforcing filler and 8 parts of a pigment.
The reinforcing filler is prepared from the following raw materials in parts by weight: 5 parts of nano calcium stearate, 140 parts of water and 0.09 part of nano calcium carbonate.
The particle sizes of the nano calcium stearate and the nano calcium carbonate are 3500 nm.
The impact-resistant toughening agent comprises methyl methacrylate-butadiene-styrene copolymer (MBS), acrylonitrile-butadiene-styrene copolymer (ABS) and acrylonitrile-butadiene random copolymer (NBR), and the weight ratio of the methyl acrylate to the butadiene-styrene copolymer (MBS) to the acrylonitrile-butadiene-styrene copolymer (ABS) is 1: 1.8: 1.3.
the stabilizer is a calcium zinc stabilizer.
The opening agent is selected from oxidized polyethylene and polyethylene wax, and the weight ratio of the oxidized polyethylene to the polyethylene wax is 1: 1.
the pigment is carbon black.
Example 5: a PVC water supply pipe comprises the following raw materials in parts by weight: the coating comprises the following components of 280 parts of polyvinyl chloride, 12 parts of a stabilizer, 7 parts of an opening agent, 10 parts of an impact-resistant toughening agent, 25 parts of a reinforcing filler and 6 parts of a pigment.
The reinforcing filler is prepared from the following raw materials in parts by weight: 3 parts of nano calcium stearate, 150 parts of water and 1 part of nano calcium carbonate.
The particle size of the nano calcium stearate and the nano calcium carbonate is 5000 nm.
The impact-resistant toughening agent comprises methyl methacrylate-butadiene-styrene copolymer (MBS), acrylonitrile-butadiene-styrene copolymer (ABS) and acrylonitrile-butadiene random copolymer (NBR), and the weight ratio of the methyl acrylate to the butadiene-styrene copolymer (MBS) to the acrylonitrile-butadiene-styrene copolymer (ABS) is 1: 1.5: 1.5.
the stabilizer is a calcium zinc stabilizer.
The opening agent is selected from stearic acid, oxidized polyethylene and polyethylene wax, and the weight ratio of the stearic acid to the oxidized polyethylene to the polyethylene wax is 1: 2: 1.
the pigment is ultramarine.
The preparation method of the PVC water supply pipe in the embodiment comprises the following steps:
s1, putting the raw materials into a plastic hot mixer according to the mixture ratio, then sequentially adding polyvinyl chloride, a stabilizer, an opening agent, an impact-resistant toughening agent, a brightening agent, a reinforcing filler and a pigment, fully mixing in the plastic hot mixer, when the temperature reaches 100 ℃ and 120 ℃, putting the mixture into a cold mixer for cooling, and cooling to below 35 ℃;
s2, putting the cooled mixture into a plastic extrusion forming machine for extrusion forming processing, and sending the pipe subjected to extrusion forming processing into a cooling water tank for cooling and shaping;
s3, pulling the cooled and shaped pipe out of the cooling water tank by using a tractor;
and S4, conveying the pipe into a cutting machine, and cutting the pipe into pipes with certain lengths according to the process requirements to obtain the water supply pipe.
In the embodiment, the wall thickness of the water supply pipe is 3.45-4.00mm, and the average wall thickness of six circumferential points is 3.55 mm; the density is 1.39-1.45kg/m3Ring stiffness SN4 is more than or equal to 4KN/n2And SN8 is more than or equal to 8KN/n2。
The Vicat softening temperature is more than 80 ℃; the longitudinal retraction rate is less than or equal to 5 percent.
And the water supply pipe is qualified through a drop hammer impact test; the test conditions of the drop hammer impact test are as follows: the water supply pipe was immersed in cold water for 3 to 6 hours, and a 0.8kg weight was dropped from a height of 1m to the water supply pipe, which was cracked and deformed.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures made by the present specification or directly or indirectly applied to other related technical fields are also included in the scope of the present invention.
Claims (10)
1. A PVC is pipe for water supply which characterized in that: comprises polyvinyl chloride, a stabilizer, an opening agent, an impact-resistant toughening agent, a brightening agent, a reinforcing filler and pigment;
the weight parts of the components are as follows: 300 parts of polyvinyl chloride 200-one, 5-15 parts of stabilizer, 3-12 parts of opening agent, 5-30 parts of impact-resistant toughening agent, 8-30 parts of reinforcing filler and 4-12 parts of pigment.
2. The PVC water pipe as set forth in claim 1, characterized in that: the reinforcing filler is prepared from the following raw materials in parts by weight: 3-6 parts of nano calcium stearate, 100 parts of water and 150 parts of nano calcium carbonate and 0.03-1 part of nano calcium carbonate.
3. The PVC water pipe as set forth in claim 2, characterized in that: the particle diameters of the nano calcium stearate and the nano calcium carbonate are 500-5000 nm.
4. The PVC water pipe as set forth in claim 1, characterized in that: the impact-resistant toughening agent comprises methyl methacrylate-butadiene-styrene copolymer, acrylonitrile-butadiene-styrene copolymer and acrylonitrile-butadiene random copolymer, and the weight ratio of the methyl acrylate-butadiene-styrene copolymer to the acrylonitrile-butadiene random copolymer is 1: 1-2: 1-2.
5. The PVC water pipe as set forth in claim 1, characterized in that: the stabilizer is a calcium zinc stabilizer.
6. The PVC water pipe as set forth in claim 1, characterized in that: the opening agent is at least one selected from monoglyceride, stearic acid, oxidized polyethylene and polyethylene wax.
7. The PVC water pipe as set forth in claim 1, characterized in that: the pigment is carbon black or ultramarine.
8. The method for preparing the PVC water supply pipe according to claim 1, wherein the method comprises the following steps: the method comprises the following steps:
s1, putting the components into a plastic hot mixing machine according to the proportion, then sequentially adding polyvinyl chloride, a stabilizer, an opening agent, an anti-impact toughening agent, a brightening agent, a reinforcing filler and a pigment, fully mixing in the plastic hot mixing machine, when the temperature reaches 100-;
s2, putting the cooled mixture into a plastic extrusion forming machine for extrusion forming processing, and sending the pipe subjected to extrusion forming processing into a cooling water tank for cooling and shaping;
s3, pulling the cooled and shaped pipe out of the cooling water tank by using a tractor;
and S4, conveying the pipe into a cutting machine, and cutting the pipe into pipes with certain lengths according to the process requirements to obtain the water supply pipe.
9. The method for preparing the PVC water supply pipe according to claim 8, wherein the method comprises the following steps: the wall thickness of the water supply pipe is 3.45-4.00mm, and the average wall thickness of six circumferential points is 3.55 mm;
the density is 1.39-1.45kg/m3Ring stiffness SN4 is more than or equal to 4KN/n2And SN8 is more than or equal to 8KN/n2。
10. The method for preparing the PVC water supply pipe according to claim 8, wherein the method comprises the following steps: the Vicat softening temperature is more than 80 ℃; the longitudinal retraction rate is less than or equal to 5 percent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210338871.9A CN114573926A (en) | 2022-04-01 | 2022-04-01 | PVC water supply pipe and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210338871.9A CN114573926A (en) | 2022-04-01 | 2022-04-01 | PVC water supply pipe and preparation method thereof |
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| CN114573926A true CN114573926A (en) | 2022-06-03 |
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| CN202210338871.9A Pending CN114573926A (en) | 2022-04-01 | 2022-04-01 | PVC water supply pipe and preparation method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1919919A (en) * | 2006-09-15 | 2007-02-28 | 河北宝硕管材有限公司 | High rush-resistant polyvinyl chloride pipe for drinking and preparation method thereof |
| CN101775180A (en) * | 2009-12-29 | 2010-07-14 | 山东华信塑胶股份有限公司 | Impact-resistant modified polyvinyl chloride tube material and preparation process thereof |
| CN104448612A (en) * | 2014-11-25 | 2015-03-25 | 新疆西部节水科技股份有限公司 | High-impact-resistant modified polyvinyl chloride pipe for water supply and preparation method thereof |
| CN106700320A (en) * | 2016-04-23 | 2017-05-24 | 佛山瑞箭体育器材有限公司 | Modified PVC (Polyvinyl Chloride) pipe composition |
| US20180186990A1 (en) * | 2016-12-31 | 2018-07-05 | Yonggao Co., Ltd | Composite material for high-impact polyvinyl chloride reinforced pipe |
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2022
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| CN1919919A (en) * | 2006-09-15 | 2007-02-28 | 河北宝硕管材有限公司 | High rush-resistant polyvinyl chloride pipe for drinking and preparation method thereof |
| CN101775180A (en) * | 2009-12-29 | 2010-07-14 | 山东华信塑胶股份有限公司 | Impact-resistant modified polyvinyl chloride tube material and preparation process thereof |
| CN104448612A (en) * | 2014-11-25 | 2015-03-25 | 新疆西部节水科技股份有限公司 | High-impact-resistant modified polyvinyl chloride pipe for water supply and preparation method thereof |
| CN106700320A (en) * | 2016-04-23 | 2017-05-24 | 佛山瑞箭体育器材有限公司 | Modified PVC (Polyvinyl Chloride) pipe composition |
| US20180186990A1 (en) * | 2016-12-31 | 2018-07-05 | Yonggao Co., Ltd | Composite material for high-impact polyvinyl chloride reinforced pipe |
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