CN115558199A - Material for tap water pipeline and preparation method thereof - Google Patents
Material for tap water pipeline and preparation method thereof Download PDFInfo
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- CN115558199A CN115558199A CN202111611276.XA CN202111611276A CN115558199A CN 115558199 A CN115558199 A CN 115558199A CN 202111611276 A CN202111611276 A CN 202111611276A CN 115558199 A CN115558199 A CN 115558199A
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- tap water
- polyolefin
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- 239000008399 tap water Substances 0.000 title claims abstract description 49
- 235000020679 tap water Nutrition 0.000 title claims abstract description 49
- 239000000463 material Substances 0.000 title claims abstract description 38
- 238000002360 preparation method Methods 0.000 title abstract description 5
- 229920000098 polyolefin Polymers 0.000 claims abstract description 47
- 239000000945 filler Substances 0.000 claims abstract description 23
- 229920001577 copolymer Polymers 0.000 claims abstract description 19
- 239000002994 raw material Substances 0.000 claims abstract description 18
- 239000004709 Chlorinated polyethylene Substances 0.000 claims abstract description 16
- 239000000314 lubricant Substances 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000007822 coupling agent Substances 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 8
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 4
- 239000012752 auxiliary agent Substances 0.000 claims description 4
- 239000000460 chlorine Substances 0.000 claims description 4
- 229910052801 chlorine Inorganic materials 0.000 claims description 4
- 239000008187 granular material Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 2
- 239000000126 substance Substances 0.000 abstract description 7
- 244000005700 microbiome Species 0.000 abstract description 5
- 238000005452 bending Methods 0.000 abstract description 3
- 238000009395 breeding Methods 0.000 abstract description 2
- 230000001488 breeding effect Effects 0.000 abstract description 2
- 230000035939 shock Effects 0.000 abstract 1
- 239000004169 Hydrogenated Poly-1-Decene Substances 0.000 description 9
- 235000019383 crystalline wax Nutrition 0.000 description 9
- 238000012360 testing method Methods 0.000 description 8
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 6
- 239000012745 toughening agent Substances 0.000 description 6
- 235000021355 Stearic acid Nutrition 0.000 description 5
- 239000003963 antioxidant agent Substances 0.000 description 5
- 230000003078 antioxidant effect Effects 0.000 description 5
- 238000009826 distribution Methods 0.000 description 5
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 5
- 239000008117 stearic acid Substances 0.000 description 5
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 4
- 239000005977 Ethylene Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 4
- 229920000915 polyvinyl chloride Polymers 0.000 description 4
- 239000004800 polyvinyl chloride Substances 0.000 description 4
- 239000011863 silicon-based powder Substances 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 239000000395 magnesium oxide Substances 0.000 description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000001993 wax Substances 0.000 description 3
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 3
- IANQTJSKSUMEQM-UHFFFAOYSA-N 1-benzofuran Chemical compound C1=CC=C2OC=CC2=C1 IANQTJSKSUMEQM-UHFFFAOYSA-N 0.000 description 2
- VSAWBBYYMBQKIK-UHFFFAOYSA-N 4-[[3,5-bis[(3,5-ditert-butyl-4-hydroxyphenyl)methyl]-2,4,6-trimethylphenyl]methyl]-2,6-ditert-butylphenol Chemical compound CC1=C(CC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)C(C)=C(CC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)C(C)=C1CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 VSAWBBYYMBQKIK-UHFFFAOYSA-N 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 230000003712 anti-aging effect Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000000383 hazardous chemical Substances 0.000 description 2
- 229920001684 low density polyethylene Polymers 0.000 description 2
- 239000004702 low-density polyethylene Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 241000252233 Cyprinus carpio Species 0.000 description 1
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229920002367 Polyisobutene Polymers 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 150000004645 aluminates Chemical class 0.000 description 1
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006353 environmental stress Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical group O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
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
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- 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
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
-
- 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
-
- 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
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to C08L27/06, in particular to a material for a tap water pipeline and a preparation method thereof. The raw materials of the tap water pipeline material comprise 30-50 parts of polyolefin with the molecular weight of 10-25 ten thousand, 1-3 parts of ethylene-octene copolymer, 12-18 parts of filler, 0.8-1.5 parts of lubricant and 0-1.5 parts of chlorinated polyethylene. According to the invention, by limiting the ratio of the inner diameter and the outer diameter of the material for the tap water pipeline and the content of each substance in the system, the tap water pipeline is prevented from being broken due to cold and heat shock and the like, the tensile strength and the bending strength are ensured, the impact resistance is improved, the breeding of microorganisms is prevented, and the service life is long.
Description
Technical Field
The invention relates to C08L27/06, in particular to a material for a tap water pipeline and a preparation method thereof.
Background
The plastic pipe has wide and important application in the fields of building, municipal construction, hydraulic engineering, gas transportation and the like, has the advantages of light weight, good corrosion resistance, convenient installation, long service life, low cost and the like compared with the traditional metal pipe, and becomes one of the most important materials in the current industrial field.
In patent CN201610301572.2, a PE pipe formulation has good high temperature resistance, no shrinkage deformation, and can be repeatedly recycled by the mutual matching of PE resin, POE toughening agent, dioctyl phthalate, coumarone resin, etc.
Patent CN201811245377.8 discloses an anti-aging PVC drain pipe and a preparation method thereof, which have good anti-aging effect and can greatly enhance tensile strength through interaction among PVC resin, ethylene-octene copolymer polyacrylate, polyisobutylene and the like.
However, the pipe prepared in the prior art is easy to change and deform due to temperature change, so that the pipeline joint is damaged, and the pipeline leaks.
Disclosure of Invention
In order to solve the above technical problems, a first aspect of the present invention provides a material for a tap water pipe, the raw materials of which comprise, by weight, 30 to 50 parts of polyolefin having a molecular weight of 10 to 25 ten thousand, 1 to 3 parts of an ethylene-octene copolymer, 12 to 18 parts of a filler, 0.8 to 1.5 parts of a lubricant, and 0 to 1.2 parts of chlorinated polyethylene.
In order to further improve the temperature resistance and mechanical properties of the tap water pipe, it is preferable that the polyolefin having a molecular weight of 10 to 25 ten thousand includes a first polyolefin and a second polyolefin. The mass ratio of the first polyolefin to the second polyolefin is (12-17): (20-25).
The first polyolefin has an average molecular weight of from 10 to 12 ten thousand and a relative molecular weight distribution of from 4.8 to 5.2. The second polyolefin has an average molecular weight of 23 to 25 ten thousand and a relative molecular weight distribution of 3.7 to 4.2. The first polyolefin and the second polyolefin with different molecular weights are matched with each other, so that the winding between crystal intervals is ensured, and the phenomenon that the acting force between the molecules is too large to cause processing difficulty is prevented.
Further preferably, the first polyolefin is a low density polyethylene.
Further preferably, the second polyolefin is polypropylene.
Further preferably, the mass ratio of the polyolefin to the ethylene-octene copolymer is (35-45): (1.5-2.5).
Preferably, the ethylene-octene copolymer has an ethylene content of 12 to 17%.
The invention discovers that the tap water pipeline is easy to break and leak due to the continuous change of temperature difference caused by the influence of indoor and outdoor water heaters, weather and the like. The invention unexpectedly discovers that by controlling the mass ratio of the polyolefin to the ethylene-octene copolymer (35-45): (1.5-2.5) can effectively prevent the leakage. Presumably, because the molecular chains of the ethylene-octene copolymer and the molecular chains of the polyolefin, the polyvinyl chloride and other substances are intertwined with each other to form a multi-component blending system with an interpenetrating network structure, when the temperature changes violently and the external force impacts, the ethylene-octene copolymer can serve as a stress concentration point in the system, the probability that silver lines are cracked due to stress development is reduced, and the tap water pipeline joint is prevented from being easily damaged due to the violent temperature changes. Especially when the ethylene component in the ethylene-octene copolymer is 12-17%, the active group contained in the ethylene-octene copolymer plays a certain role in connection buffering in a molecular chain. Prevent that the running water pipeline from vertically retracting, lead to the pipeline kneck to be destroyed easily, cause the leakage.
Still further preferably, the mass ratio of the first polyolefin, the second polyolefin and the ethylene-octene copolymer is (12-17): (20-25): (1.7-2).
More preferably, the content of the filler accounts for 23-27wt% of the total mass of the raw materials.
Preferably, the particle size of the filler is 1000-1600 meshes, micron-sized fillers are adopted to promote crystallization of a polymer system in the system, so that the high temperature resistance is further improved, and the tap water pipeline is prevented from leaking due to temperature change.
Further preferably, the particle size of the filler is 1200 to 1500 meshes.
Preferably, the filler is silicon powder. The content of silicon dioxide in the silicon powder is more than or equal to 92 percent.
In order to further improve the stability of the tap water pipe, it is preferable that the lubricant includes stearic acid and crystalline wax. The mass ratio of the stearic acid to the crystal form wax is (7-8): (3-4).
Further preferably, the crystalline wax has a melting point of 55 to 63 ℃.
Further preferably, the content of the chlorinated polyethylene is 0.5-1 part.
Preferably, the chlorinated polyethylene has a chlorine content of 30 to 40%. Prevent the deterioration of durability caused by the easy decomposition of the tap water pipe due to the excessive chlorine content.
Further preferably, the mass ratio of the polyolefin to the chlorinated polyethylene is (35-45): (0.5-1).
After the water in the tap water pipeline passes through, the organic matters contained in the water are easily adsorbed on the inner wall of the pipeline to form a film for the growth of microorganisms, so that the quality of the supplied water is reduced. The present inventors have surprisingly found that the propagation of microorganisms in water supply pipes can be effectively reduced by further limiting the amount of polyolefin and polyvinyl chloride in the system. Presumably because the mass ratio of the polyolefin to the chlorinated polyethylene was (35 to 45): (0.5-1), the charge distribution on the surface of the tap water pipeline is in a balance due to the mutual influence of active groups and molecular chains, organic matters, calcium and other inorganic components in the tap water are not easy to diffuse and entangle with the surface of the plastic, the adhesive force is reduced, and meanwhile, a weak interface layer is formed with small molecular auxiliaries, such as crystalline wax and the like in the system, the surface energy is reduced, and the adsorption of the organic matters, calcium and other inorganic components in the tap water on the surface of the tap water pipeline is hindered.
Still more preferably, the mass ratio of the first polyolefin, the second polyolefin and the chlorinated polyethylene is (12-17): (20-25): (0.6-0.85).
Preferably, the raw materials of the material for the tap water pipeline also comprise 0.5-0.7 part of C1-C5 material and 0.8-1.5 parts of auxiliary agent.
Preferably, the C1-C5 materials are sequentially as follows: c1: aluminum oxide, C2: magnesium oxide, C3: crystalline wax, C4: stearate, C5: and (3) ceramic micro powder.
Preferably, the ratio of C1: c2: c3: c4: the mass ratio of C5 is (2-3): (2-3): (1-2): (1-2): (2-3).
Preferably, the ratio of the inner diameter to the outer diameter of the water supply pipeline made of the material for the tap water pipeline is (15-150): (20-160).
The second aspect of the present invention provides a method for preparing a material for a tap water pipe, comprising the steps of:
(1) Weighing the raw materials according to the formula, placing the filler in a high-speed mixer, adding a coupling agent, and stirring and modifying for 15-25min to obtain a modified filler;
(2) Mixing the modified filler with other raw materials, adding into a high-speed mixer, mixing, heating at 150-180 deg.C for 15-20s, adding into an internal mixer, and banburying at 150-220 deg.C for 12-17min;
(3) And extruding and granulating the mixed raw materials, and then placing the granules into a mould to be subjected to mould closing and pressing to obtain the finished product.
Preferably, the amount of the coupling agent is 1 to 3% of the total mass of the filler. .
Preferably, the coupling agent comprises at least one of titanate coupling agent, silane coupling agent, aluminate coupling agent and rare earth coupling agent.
Has the advantages that:
1) The invention limits the content of polyolefin, ethylene-octene copolymer and other substances in the system, prevents the Vicat softening temperature from being lower and deforming when heated, simultaneously avoids the fracture of a tap water pipeline caused by cold and hot impact and the like, prevents silver veins from developing into cracks, ensures the tensile strength and the bending strength, improves the impact resistance, can be used for cold and hot water with (-35 ℃ -100 ℃), has good pressure resistance and can not leak.
2) Organic matters contained in tap water are easy to adsorb on the inner wall of the pipeline to form a layer of nutrient film for the growth of microorganisms, thereby reducing the quality of supplied water. The invention reduces the surface energy, prevents organic matters, calcium and other inorganic components from being difficult to adhere to the surface of the plastic, prevents the breeding of microorganisms, and has safety, no toxicity and good reliability by limiting the contents of polyolefin and chlorinated polyethylene and the addition of paraffin in the system.
3) The tap water pipeline prepared by the invention has smooth inner surface and non-adhesion characteristic, has higher conveying capacity than the traditional pipe, and simultaneously reduces the pressure loss and water conveying energy consumption of the pipeline. And the paint has the advantages of chemical corrosion resistance, environmental stress cracking resistance, good aging resistance and long service life.
Description of the drawings:
FIG. 1 is a photograph showing the actual use of the product of the present invention in a tap water pipeline;
fig. 2 is a schematic structural view of the present invention for a tap water pipeline.
FIG. 3 hazardous substance detection (example 1) Performance test results
Detailed Description
Examples
Example 1
The raw materials for the tap water pipeline material comprise, by weight, 38.18 parts of polyolefin with the molecular weight of 10-25 ten thousand, 1.91 parts of ethylene-octene copolymer, 15 parts of filler, 1.14 parts of lubricant and 0.76 part of chlorinated polyethylene.
The polyolefins having a molecular weight of 10 to 25 million include a first polyolefin and a second polyolefin. The first polyolefin had an average molecular weight of 10.4 ten thousand and a relative molecular weight distribution of 5.1. The first polyolefin is low density polyethylene, purchased from beijing yanshan petrochemical company ltd, model number: LD 100BW. The second polyolefin had an average molecular weight of 24.9 ten thousand and a relative molecular weight distribution of 3.99. The second polyolefin is polypropylene. The second polyolefin was purchased from beijing yanshan petrochemical co, model number: 2401. the mass ratio of the first polyolefin to the second polyolefin is 15.27:22.91.
the ethylene-octene copolymer has an ethylene content of 15%. The ethylene-octene copolymer is exxon 6202. Purchased from exxon chemical.
The particle size of the filler is 1300 meshes. The filler is silicon powder. The content of silicon dioxide in the silicon powder is more than or equal to 92 percent. Is from Yongshun New materials science and technology Limited of Jiangsu.
The lubricant includes stearic acid and a crystalline wax. The mass ratio of the stearic acid to the crystalline wax is 7.6:3.8. the crystalline wax has a melting point of 58-60 ℃. The stearic ACID is STEASIC ACID SA1801 available from West land chemical Co., ltd, guangzhou, and the crystalline wax is Kunlun No. 58. Purchased from Shanghai Point-of-Care, inc.
The chlorinated polyethylene has a chlorine content of 35%. The chlorinated polyethylene was 135A.
The raw materials for the tap water pipeline material also comprise 0.6 part of C1-C5 material and 1 part of auxiliary agent.
The C1-C5 materials are sequentially as follows: c1: aluminum oxide, C2: magnesium oxide, C3: crystalline wax, C4: zinc stearate, C5: and (3) ceramic micro powder. The ratio of C1: c2: c3: c4: the mass ratio of C5 is 2.5:2.5:1.5: 1.5:2.5. the aluminum oxide is purchased from Nantong Runfeng petrochemical company, inc., and the magnesium oxide is light magnesium oxide and purchased from Henghai magnesium industry company, hongkong. The crystal form wax is purchased from Shandong Jing Hao chemical industry Co., ltd, the zinc stearate is zinc stearate 168, the crystal form wax is purchased from Changzhou city Lehua Huan commercial Co., ltd, the ceramic micro powder is purchased from Shanghai Hui Jing ya nanometer new material Co., ltd, and the model is as follows: 6000.
the auxiliary agent comprises an antioxidant, a toughening agent and a compatilizer. The mass ratio of the antioxidant to the toughening agent to the compatilizer is 1:2:1.
the antioxidant comprises antioxidant Revonox 608T and antioxidant 330. The mass ratio of the antioxidant Revonox 608T to the antioxidant 330 is 1.
The toughening agent is a POE grafted GMA toughening agent, and the type is as follows: W5A. The compatilizer is a maleic anhydride grafted PE compatilizer, the model W1L: both the toughening agent and the compatibilizer were purchased from koies chemical ltd. A method for preparing a material for tap water pipes, comprising the steps of:
(1) Weighing the raw materials according to a formula, placing the filler in a high-speed mixer, adding a coupling agent, and stirring and modifying for 20min to obtain a modified filler;
(2) Mixing the modified filler and other raw materials uniformly, adding into a high-speed mixer, mixing uniformly, heating at 175 ℃ for 18s, and then adding into an internal mixer to carry out internal mixing for 15min at 200 ℃;
(3) And extruding and granulating the mixed raw materials, and then placing the granules into a die to be pressed by a matched die to obtain the composite material.
The dosage of the coupling agent accounts for 2.5 percent of the total mass of the filler, and the coupling agent is KH570.
The ratio of the inner diameter to the outer diameter of the water supply pipeline made of the material for the tap water pipeline is 20: 25mm.
Example 2
A material for tap water pipes, according to the embodiment, the difference is that the first polyolefin and the second polyolefin have a mass ratio of 17:25.
example 3
The specific implementation mode of the material for the tap water pipeline is the same as that in example 1, except that the raw materials of the tap water pipeline comprise 38.18 parts of polyolefin with the molecular weight of 10-25 ten thousand, 2 parts of ethylene-octene copolymer, 15.9 parts of filler, 1.5 parts of lubricant and 1 part of chlorinated polyethylene.
Comparative example 1
A material for a tap water pipe, according to the following embodiment, the difference from example 1 is that the ethylene component in the ethylene-octene copolymer is 9%. The model is as follows: 3980FL.
Comparative example 2
A material for tap water pipes, according to the same embodiment as that of example 1, except that the content of the chlorinated polyethylene is 1.3 parts.
Performance testing
1. And (3) testing the bending strength: the test was carried out according to GB/T19341, and the average value was taken for three tests.
2. Notched impact strength test: the tensile rate was 2mm/min, as measured according to GB/T1843.
3. Tensile strength and tensile elongation at break test: the tensile rate was 50mm/min, as measured according to GB/T1040.
Table 1 results of performance testing
4. Example 1 part of the Performance test
Table 2 results of performance testing
5. Hazardous substance detection (example 1)
The results of the performance tests are shown in FIG. 3.
Claims (10)
1. The material for the tap water pipeline is characterized in that raw materials of the material for the tap water pipeline comprise, by weight, 30-50 parts of polyolefin with the molecular weight of 10-25 ten thousand, 1-3 parts of ethylene-octene copolymer, 12-18 parts of filler, 0.8-1.5 parts of lubricant and 0-1.5 parts of chlorinated polyethylene.
2. A material for tap water pipes according to claim 1 wherein the polyolefin having a molecular weight of 10 to 25 ten thousand comprises a first polyolefin and a second polyolefin.
3. A material for tap water pipes according to claim 2, characterized in that the first polyolefin has an average molecular weight of 10-12 ten thousand.
4. A material for water supply pipes according to claim 2, characterized in that the average molecular weight of the second polyolefin is 23-25 ten thousand.
5. A material for tap water pipes according to any one of claims 1 to 4 wherein the mass ratio of the polyolefin having a molecular weight of 10 to 25 ten thousand to the ethylene-octene copolymer is (35 to 45): (1.5-2.5).
6. A material for tap water pipes according to any one of claims 1 to 5, wherein the chlorinated polyethylene has a chlorine content of 30 to 40%.
7. A material for tap water pipes according to any one of claims 1 to 6 wherein the mass ratio of the polyolefin having a molecular weight of 10 to 25 ten thousand to the chlorinated polyethylene is (35 to 45): (0.5-1).
8. The material for tap water pipelines according to any one of claims 1 to 7, wherein the raw material for the material for tap water pipelines further comprises 0.5 to 0.7 part of C1 to C5 material and 0.8 to 1.5 parts of auxiliary agent.
9. A material for a tap water pipe according to any one of claims 1 to 8, wherein the ratio of the inner diameter and the outer diameter of the tap water pipe prepared from the material for a tap water pipe is (15 to 150): (20-160).
10. A method for preparing a material for tap water pipes according to any one of claims 1 to 8, comprising the steps of:
(1) Weighing the raw materials according to the formula, placing the filler in a high-speed mixer, adding a coupling agent, and stirring and modifying for 15-25min to obtain a modified filler;
(2) Mixing the modified filler with other raw materials, adding into a high-speed mixer, mixing, heating at 150-180 deg.C for 15-20s, adding into an internal mixer, and banburying at 150-220 deg.C for 12-17min;
(3) And extruding and granulating the mixed raw materials, and then placing the granules into a die to be pressed by a matched die to obtain the composite material.
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| CN202111611276.XA CN115558199A (en) | 2021-12-27 | 2021-12-27 | Material for tap water pipeline and preparation method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1267244A (en) * | 1985-02-14 | 1990-03-27 | Changize Sadrmohaghegh | Thermoplastic/elastomeric composition |
| CN102898723A (en) * | 2011-07-28 | 2013-01-30 | 合肥杰事杰新材料股份有限公司 | Polypropylene composition and preparation method thereof |
| CN105237886A (en) * | 2015-10-30 | 2016-01-13 | 永高股份有限公司 | Preparation method for polypropylene-toughened impact-resistant tubular product |
-
2021
- 2021-12-27 CN CN202111611276.XA patent/CN115558199A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1267244A (en) * | 1985-02-14 | 1990-03-27 | Changize Sadrmohaghegh | Thermoplastic/elastomeric composition |
| CN102898723A (en) * | 2011-07-28 | 2013-01-30 | 合肥杰事杰新材料股份有限公司 | Polypropylene composition and preparation method thereof |
| CN105237886A (en) * | 2015-10-30 | 2016-01-13 | 永高股份有限公司 | Preparation method for polypropylene-toughened impact-resistant tubular product |
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Application publication date: 20230103 |