CN111434966A - Antibacterial anti-scaling functional pipe - Google Patents
Antibacterial anti-scaling functional pipe Download PDFInfo
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- CN111434966A CN111434966A CN201910031542.8A CN201910031542A CN111434966A CN 111434966 A CN111434966 A CN 111434966A CN 201910031542 A CN201910031542 A CN 201910031542A CN 111434966 A CN111434966 A CN 111434966A
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- copper
- montmorillonite
- scaling
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- 230000000844 anti-bacterial effect Effects 0.000 title claims description 34
- 239000010410 layer Substances 0.000 claims abstract description 120
- 239000000463 material Substances 0.000 claims abstract description 77
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 61
- 229910052802 copper Inorganic materials 0.000 claims abstract description 60
- 239000010949 copper Substances 0.000 claims abstract description 60
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims abstract description 59
- 229910052901 montmorillonite Inorganic materials 0.000 claims abstract description 52
- 229920006324 polyoxymethylene Polymers 0.000 claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 230000003385 bacteriostatic effect Effects 0.000 claims abstract description 19
- 239000000835 fiber Substances 0.000 claims abstract description 18
- 239000011159 matrix material Substances 0.000 claims abstract description 13
- 239000004831 Hot glue Substances 0.000 claims abstract description 12
- 229920005989 resin Polymers 0.000 claims abstract description 11
- 239000011347 resin Substances 0.000 claims abstract description 11
- 229920000098 polyolefin Polymers 0.000 claims abstract description 7
- 238000002360 preparation method Methods 0.000 claims abstract description 5
- 230000002265 prevention Effects 0.000 claims abstract description 4
- 239000000725 suspension Substances 0.000 claims description 25
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 20
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 19
- 229910021389 graphene Inorganic materials 0.000 claims description 19
- 238000003756 stirring Methods 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 10
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical compound [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 claims description 10
- 239000008367 deionised water Substances 0.000 claims description 9
- 229910021641 deionized water Inorganic materials 0.000 claims description 9
- 238000001125 extrusion Methods 0.000 claims description 9
- 238000005406 washing Methods 0.000 claims description 9
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 8
- 238000001914 filtration Methods 0.000 claims description 8
- JZCCFEFSEZPSOG-UHFFFAOYSA-L copper(II) sulfate pentahydrate Chemical compound O.O.O.O.O.[Cu+2].[O-]S([O-])(=O)=O JZCCFEFSEZPSOG-UHFFFAOYSA-L 0.000 claims description 7
- 229960000583 acetic acid Drugs 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 238000007710 freezing Methods 0.000 claims description 4
- 230000008014 freezing Effects 0.000 claims description 4
- 239000012362 glacial acetic acid Substances 0.000 claims description 4
- 238000010992 reflux Methods 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 claims description 3
- 229910001431 copper ion Inorganic materials 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000012986 modification Methods 0.000 claims description 3
- 230000004048 modification Effects 0.000 claims description 3
- 230000001376 precipitating effect Effects 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 238000009210 therapy by ultrasound Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 229920001903 high density polyethylene Polymers 0.000 description 13
- 239000004700 high-density polyethylene Substances 0.000 description 13
- 239000004594 Masterbatch (MB) Substances 0.000 description 10
- 229920002748 Basalt fiber Polymers 0.000 description 9
- 239000002131 composite material Substances 0.000 description 7
- 241000588724 Escherichia coli Species 0.000 description 5
- 241000191967 Staphylococcus aureus Species 0.000 description 5
- 239000003365 glass fiber Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 241000282414 Homo sapiens Species 0.000 description 4
- 238000002425 crystallisation Methods 0.000 description 4
- 230000008025 crystallization Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000003651 drinking water Substances 0.000 description 2
- 235000020188 drinking water Nutrition 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- -1 silver ions Chemical class 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 206010030113 Oedema Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000011258 core-shell material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
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- 229920005672 polyolefin resin Polymers 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
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- 239000012779 reinforcing material Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
- F16L9/147—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups comprising only layers of metal and plastics with or without reinforcement
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/346—Clay
-
- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/10—Silicon-containing compounds
-
- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/02—Ingredients treated with inorganic substances
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/085—Copper
-
- 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
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
-
- 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
-
- 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
- C08L2207/10—Peculiar tacticity
- C08L2207/14—Amorphous or atactic polypropylene
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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)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dispersion Chemistry (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention relates to a bacteriostatic anti-scaling functional pipe which is characterized in that an inner layer of the pipe is made of a modified polyolefin material with bacteriostatic anti-scaling function, a second layer of the pipe is made of a hot melt adhesive, a third layer of the pipe is made of a fiber reinforced POM material, a fourth layer of the pipe is made of a hot melt adhesive layer, and a fifth layer of the pipe is made of a polyolefin material. The invention has the advantages that: in the novel water supply pipeline, micro-nano copper powder or copper-loaded montmorillonite is introduced into matrix resin, so that the effects of bacteriostasis and scale prevention can be realized; meanwhile, the fiber reinforced polyformaldehyde material is introduced into the middle layer, so that the strength of the whole pipe is improved, and the higher pressure resistance of the pipe is further realized. The invention can be applied to the preparation of building pipelines, in particular to a domestic water supply pipe with sanitary performance requirement and a building vertical pipe with higher pressure resistance requirement.
Description
Technical Field
The invention relates to the technical field of pipe production, in particular to a bacteriostatic anti-scaling functional pipe.
Background
In the use process of the traditional water supply pipeline, secondary pollution of drinking water can be caused due to propagation of harmful bacteria, mould and other microorganisms, and harm is caused to the living health of people. The pipeline with the antibacterial function can effectively inhibit the growth of harmful bacteria in the pipeline, thereby ensuring the health and the safety of drinking water. The antibacterial tube in recent years is mainly put forward to be a nano-silver antibacterial tube, and nano-silver has a good antibacterial effect, but the safety of the nano-silver is always questioned by researchers at home and abroad. It is considered that silver ions are strongly oxidative, and excessive accumulation of silver ions into the human body causes symptoms such as organ edema. The strong permeability of the nanoparticles not only provides effectiveness for the use of drugs, but also poses potential threats to human health. Therefore, it is a very significant subject to develop a safe and healthy pipe material having a certain antibacterial function. Copper is the metal material discovered and used by human beings at the earliest, the use of the copper for thousands of years certifies the safety and the reliability, copper ions are indispensable elements for human beings, and the antibacterial property of the copper material is certified for a long time. One of the materials used for water delivery is well known in "catalogs of Water products". Therefore, the copper material has certain development value when being applied to the water pipeline.
In the market, copper-containing pipelines mainly comprise copper pipes and copper-plastic composite pipes. But the cost of the copper pipe is high, and water leakage is easy to occur at the joint of the copper pipe and the copper pipe; the copper-plastic composite pipe is formed by lining a copper pipe in a plastic pipe, and although the cost is slightly reduced, the potential layering hazard still exists at the copper-plastic interface. Thus developing a new copper-containing pipeline product. Therefore, the copper powder particles and the polyolefin resin are blended and compounded to be used as an antibacterial layer material to prepare a novel antibacterial pipeline, and the novel antibacterial pipeline is used as iterative upgrade of antibacterial pipe development.
In addition, in order to further improve the pressure resistance of the pipe, the pipe is different from the traditional metal material reinforced composite pipe, the invention also introduces a fiber reinforced modified material of engineering plastics POM with high strength as a reinforced layer, through multilayer co-extrusion, the production process is simple, and the modified material can be better combined with matrix resin, thereby ensuring that the novel pipe has stable pressure resistance.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a bacteriostatic anti-scaling functional pipe.
The purpose of the invention is realized by the following technical scheme:
a bacteriostatic anti-scaling functional pipe comprises an inner layer of a pipe material made of a modified polyolefin material with bacteriostatic anti-scaling function, a second layer of a hot melt adhesive, a third layer of a fiber reinforced POM material, a fourth layer of a hot melt adhesive layer and a fifth layer of a polyolefin material; wherein:
micro-nano copper powder or copper-loaded montmorillonite is introduced into the inner layer resin, so that the effects of bacteriostasis and scale prevention can be realized; meanwhile, the fiber reinforced polyformaldehyde material is introduced into the middle layer, so that the strength of the whole pipe is improved, and the higher pressure resistance of the pipe is further realized.
The matrix resin material of the inner layer of the pipe is one of PPR, PE, PERT and PB, and a bacteriostatic anti-scaling modified material is added.
The antibacterial anti-scaling modified material of the inner layer of the pipe is one of micro-nano copper powder, copper-loaded montmorillonite or copper-loaded montmorillonite hybrid material. Wherein the particle size of the selected micro-nano copper powder is 100-800 nm, and the mass fraction of the micro-nano copper powder in the inner layer of the pipe is 0.1-1%;
the copper ion content of the copper-loaded montmorillonite is 50-100 mg/g, the particle size is 500 nanometers-1 micrometer, and the mass fraction of the copper-loaded montmorillonite in the inner layer of the pipe is 0.5-5%.
The particle size of the copper-loaded montmorillonite hybrid material is 500 nanometers-1 micron, and the mass fraction of the copper-loaded montmorillonite hybrid material in the inner layer of the pipe is 0.5-5%.
The preparation method of the copper-loaded montmorillonite hybrid material comprises the following specific steps:
adding montmorillonite into a copper sulfate pentahydrate solution, carrying out microwave stirring, reacting for 6 hours at 40-60 ℃, carrying out centrifugal treatment until montmorillonite is completely precipitated, then washing with deionized water, and reserving part of water to form a suspension to obtain a copper-loaded montmorillonite primary product; adding into an ethanol solution of aminosilane, adjusting the pH value to 3-5 by using glacial acetic acid, and carrying out reflux stirring for 6h at the temperature of 80 ℃; filtering after the reaction is finished, washing with deionized water, and adding water to form copper-loaded organic modified montmorillonite suspension; and finally, blending the mixture with graphene oxide suspension, continuously stirring for 2 hours after ultrasonic treatment is carried out for 1 hour, and then precipitating, filtering, freezing and drying to prepare the copper-loaded montmorillonite hybrid material.
The mass ratio of montmorillonite to blue copperas is 1: 2;
the mass fraction of the copper-loaded montmorillonite primary product in the suspension is 5-10%;
the mass fraction of aminosilane in ethanol is 5%;
the mass ratio of the suspension of the copper-loaded montmorillonite primary product to the ethanol solution of aminosilane is 5: 1;
the mass fraction of the graphene oxide in the graphene oxide suspension is 1-5%; the graphene oxide suspension is formed by dissolving graphene oxide in water;
the mass ratio of the copper-loaded organic modified montmorillonite suspension to the graphene oxide suspension is 3: 1;
the graphene oxide has a unique two-dimensional (2D) honeycomb-shaped hydrophobic planar structure and hydrophilic groups, and the edges of the graphene oxide contain carboxyl (-COOH) and hydroxyl (-OH) groups, so that the graphene oxide has excellent antibacterial activity. The graphene oxide can mechanically damage the bacterial film to achieve an antibacterial function.
Copper-loaded montmorillonite hybrid material: the composite material is a core-shell double-layer structure, the surface layer of the composite material is wrapped by graphene, and the inner layer of the composite material is a copper-loaded organic modified montmorillonite composite material.
The third layer of the pipe is a reinforcing layer, the whole strength of the pipe is improved by co-extruding the fiber reinforced POM with the temperature close to that of the processing, and the hot melt adhesive is used for ensuring the direct binding force with the matrix resin on the second layer and the fourth layer in order to ensure no delamination between the pipe and the matrix resin. The fiber used can be one of glass fiber, basalt fiber and carbon fiber.
The proportion of each layer of the pipe is as follows: 5-20% of an inner layer; 0-10% of the second layer; 0 to 40 percent of the third layer; 0-10% of a fourth layer; 25-80% of the fifth layer.
The inner layer and the outer layer of the pipe are made of one of PPR, PE, PERT and PB.
Compared with the prior art, the invention has the following positive effects:
1. the nontoxic and safe micro-nano copper material is used as an antibacterial component to be applied to the domestic pipeline, so that the new generation of antibacterial and anti-scaling pipeline product has excellent sanitary performance and is iterative upgrade of the original antibacterial product.
2. POM modified materials with the temperature close to the processing temperature of polyolefin are selected as the enhancement layers, and the acting force between the POM modified materials and the matrix resin is ensured through co-extrusion, so that the product is not layered; and the hot melting connection between the pipe and the pipe fitting can be realized, and the convenience, stability and reliability in construction of the pipeline product are ensured.
3. The antibacterial material can be prepared into master batches and can also be directly blended and extruded; the POM reinforcing material can be prepared into modified granules for direct production; the whole production process can continue to use the original extrusion equipment, the process operation is simple, and the industrial production can be realized.
Drawings
FIG. 1 is a schematic view of a bacteriostatic anti-scaling function;
in the drawings: 1 inner layer of the pipe, 2 second layer, 3 third layer, 4 fourth layer and 5 fifth layer.
Detailed Description
The following provides a specific embodiment of the bacteriostatic anti-scaling functional pipe.
Example 1
The utility model provides a bacteriostatic anti-scaling function pipe, the tubular product inlayer is micro-nano copper powder modified HDPE tubular product, and the third layer is glass fiber reinforcing POM material, bonds through the hot melt adhesive between the two, and outmost is the HDPE substrate. Wherein:
the particle size of the added micro-nano copper powder in the inner layer of the pipe is 500nm, 10% of modified master batch is prepared firstly, and then the modified master batch is blended with HDPE base material according to the addition proportion of 8%.
The third layer of the pipe is glass fiber reinforced POM, wherein the fiber content is 25%, and the modified material contains 8% of compatilizer, so that the binding force between the fibers and the POM matrix is ensured. To reduce the crystallization rate of POM, 5% of TPU was added as appropriate for adjustment.
The proportion of each layer of the pipe is as follows: the inner layer 1 is 10 percent; the second layer 2 is 10%; the third layer 3 is 40%; the fourth layer 4 is 10%; the fifth layer 5 is 30%.
The pipe can be directly extruded and molded by five layers of co-extrusion equipment.
The test indexes of the antibacterial performance of the material of the inner layer are as follows: TABLE 1
| Experimental strains | Antibacterial property value |
| Escherichia coli | 6.3 |
| Staphylococcus aureus | 6.2 |
Example 2
The utility model provides a bacteriostatic anti-scaling function pipe, the tubular product inlayer is for carrying modified PPR tubular product of copper montmorillonite, and the third layer is glass fiber reinforcing POM material, bonds through the hot melt adhesive between the two, and outmost is the PPR substrate. Wherein:
in the inner layer of the pipe, the added copper-loaded montmorillonite has the grain diameter of 800nm, 10 percent of modified master batch is prepared firstly, and then the modified master batch is blended with HDPE base material according to the adding proportion of 10 percent.
The third layer of the pipe is glass fiber reinforced POM, the fiber content of the pipe is 25%, and the modified material contains 8% of compatilizer, so that the binding force between the fibers and the POM matrix is ensured. To reduce the crystallization rate of POM, 5% of TPU was added as appropriate for adjustment.
The proportion of each layer of the pipe is as follows: 12% of an inner layer; the second layer is 8%; a third layer 32%; the fourth layer is 8%; and 40% of a fifth layer.
The pipe can be directly extruded and molded by five layers of co-extrusion equipment.
The test indexes of the antibacterial performance of the material of the inner layer are as follows: TABLE 2
| Experimental strains | Antibacterial property value |
| Escherichia coli | 3.2 |
| Staphylococcus aureus | 2.9 |
Example 3
The inner layer of the pipe is a modified HDPE pipe carrying a copper montmorillonite hybrid material, the third layer is a basalt fiber reinforced POM material, the basalt fiber reinforced POM material and the basalt fiber reinforced POM material are bonded through a hot melt adhesive, and the outermost layer is an HDPE base material. Wherein:
in the inner layer of the pipe, the added copper-loaded montmorillonite hybrid material has the particle size of 200nm, 10% of modified master batch is prepared firstly, and then the modified master batch is blended with HDPE base material according to the adding proportion of 5%.
The third layer of the pipe is basalt fiber reinforced POM, the fiber content of the pipe is 25%, and the modified material contains 8% of compatilizer, so that the binding force between the fibers and the POM matrix is ensured. To reduce the crystallization rate of POM, 5% of TPU was added as appropriate for adjustment.
The proportion of each layer of the pipe is as follows: 20% of the inner layer; a second layer 10%; a third layer 30%; the fourth layer is 10 percent; and 30% of a fifth layer.
The pipe can be directly extruded and molded by five layers of co-extrusion equipment.
The preparation method of the copper-loaded montmorillonite hybrid material comprises the following specific steps:
adding montmorillonite into a copper sulfate pentahydrate solution, carrying out microwave stirring, reacting for 6 hours at 40-60 ℃, carrying out centrifugal treatment until montmorillonite is completely precipitated, then washing with deionized water, and reserving part of water to form a suspension to obtain a copper-loaded montmorillonite primary product; adding into an ethanol solution of aminosilane, adjusting the pH value to 3-5 by using glacial acetic acid, and carrying out reflux stirring for 6h at the temperature of 80 ℃; filtering after the reaction is finished, washing with deionized water, and adding water to form copper-loaded organic modified montmorillonite suspension; and finally, blending the mixture with graphene oxide suspension, continuously stirring for 2 hours after ultrasonic treatment is carried out for 1 hour, and then precipitating, filtering, freezing and drying to prepare the copper-loaded montmorillonite hybrid material.
The mass ratio of montmorillonite to blue copperas is 1: 2;
the mass fraction of the copper-loaded montmorillonite primary product in the suspension is 7 percent;
the mass fraction of aminosilane in ethanol is 5%;
the mass ratio of the suspension of the copper-loaded montmorillonite primary product to the ethanol solution of aminosilane is 5: 1;
the mass fraction of the graphene oxide in the graphene oxide suspension is 1-5%; the graphene oxide suspension is formed by dissolving graphene oxide in water;
the mass ratio of the copper-loaded organic modified montmorillonite suspension to the graphene oxide suspension is 3: 1;
the test indexes of the antibacterial performance of the material of the inner layer are as follows: TABLE 3
| Experimental strains | Antibacterial property value |
| Escherichia coli | 5.5 |
| Staphylococcus aureus | 5.7 |
Example 4
The inner layer of the pipe is a modified HDPE pipe carrying a copper montmorillonite hybrid material, the third layer is a basalt fiber reinforced POM material, the basalt fiber reinforced POM material and the basalt fiber reinforced POM material are bonded through a hot melt adhesive, and the outermost layer is an HDPE base material. Wherein:
in the inner layer of the pipe, the added copper-loaded montmorillonite hybrid material has the particle size of 200nm, 10% of modified master batch is prepared firstly, and then the modified master batch is blended with HDPE base material according to the adding proportion of 5%.
The third layer of the pipe is basalt fiber reinforced POM, the fiber content of the pipe is 25%, and the modified material contains 8% of compatilizer, so that the binding force between the fibers and the POM matrix is ensured. To reduce the crystallization rate of POM, 5% of TPU was added as appropriate for adjustment.
The proportion of each layer of the pipe is as follows: 20% of the inner layer; a second layer 10%; a third layer 30%; the fourth layer is 10 percent; and 30% of a fifth layer.
The pipe can be directly extruded and molded by five layers of co-extrusion equipment.
The preparation method of the copper-loaded montmorillonite hybrid material comprises the following specific steps:
adding montmorillonite into a copper sulfate pentahydrate solution, carrying out microwave stirring, reacting for 6 hours at 40-60 ℃, carrying out centrifugal treatment until montmorillonite is completely precipitated, then washing with deionized water, and reserving part of water to form a suspension to obtain a copper-loaded montmorillonite primary product; adding into an ethanol solution of aminosilane, adjusting the pH value to 3-5 by using glacial acetic acid, and carrying out reflux stirring for 6h at the temperature of 80 ℃; filtering after the reaction is finished, washing with deionized water, and adding water to form copper-loaded organic modified montmorillonite suspension; then washing with deionized water, filtering, freezing and drying to prepare the copper-loaded montmorillonite hybrid material.
The mass ratio of montmorillonite to blue copperas is 1: 2;
the mass fraction of the copper-loaded montmorillonite primary product in the suspension is 7 percent;
the mass fraction of aminosilane in ethanol is 5%;
the mass ratio of the suspension of the copper-loaded montmorillonite primary product to the ethanol solution of aminosilane is 5: 1;
the test indexes of the antibacterial performance of the material of the inner layer are as follows: TABLE 4
| Experimental strains | Antibacterial property value |
| Escherichia coli | 4.8 |
| Staphylococcus aureus | 5.1 |
From the antibacterial performance, the antibacterial performance was reduced by about 10% compared to example 3, mainly due to the synergistic effect of graphene oxide.
Example 5
The utility model provides a function pipe of antibacterial anti-scaling, the tubular product inlayer is micro-nano copper powder modified HDPE tubular product, and the outmost HDPE substrate. Wherein:
the particle size of the added micro-nano copper powder in the inner layer of the pipe is 500nm, 10% of modified master batch is prepared firstly, and then the modified master batch is blended with HDPE base material according to the addition proportion of 8%.
The proportion of each layer of the pipe is as follows: 10% of an inner layer; (ii) a And the fifth layer is 90 percent.
The pipe can be directly extruded and molded by two-layer co-extrusion equipment.
The test indexes of the antibacterial performance of the material of the inner layer are as follows: TABLE 1
| Experimental strains | Antibacterial property value |
| Escherichia coli | 6.8 |
| Staphylococcus aureus | 6.5 |
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the concept of the present invention, and these modifications and decorations should also be regarded as being within the protection scope of the present invention.
Claims (10)
1. A bacteriostatic anti-scaling functional pipe comprises an inner layer of a pipe material made of a modified polyolefin material with bacteriostatic anti-scaling function, a second layer of a hot melt adhesive, a third layer of a fiber reinforced POM material, a fourth layer of a hot melt adhesive layer and a fifth layer of a polyolefin material; wherein:
micro-nano copper powder, copper-loaded montmorillonite or copper-loaded montmorillonite hybrid material is introduced into the inner layer resin; the middle layer is introduced with fiber reinforced polyformaldehyde material.
2. The bacteriostatic and anti-scaling functional pipe as claimed in claim 1, wherein the third layer of the pipe is a reinforcing layer, the POM is reinforced by co-extrusion processing of fibers with similar temperature, and hot melt adhesive is used for the second and fourth layers to ensure the bonding force between the second and fourth layers and the matrix resin.
3. The pipe with the functions of bacteriostasis and scale prevention as claimed in claim 1, wherein the ratio of the material quality of each layer of the pipe is as follows: 5-20% of an inner layer; 0-10% of the second layer; 0-40% of a third layer; 0-10% of a fourth layer; 25-80% of the fifth layer.
4. The pipe of claim 1, wherein the matrix resin material of the inner layer of the pipe is one of PPR, PE, PERT and PB, and a bacteriostatic and anti-scaling modifying material is added.
5. The pipe with the bacteriostatic and anti-scaling functions as claimed in claim 1, wherein the bacteriostatic and anti-scaling modification material of the inner layer of the pipe is one of micro-nano copper powder, copper-loaded montmorillonite or copper-loaded montmorillonite hybrid material.
6. The bacteriostatic and anti-scaling functional tube according to claim 1, wherein the particle size of the selected micro-nano copper powder is 100-800 nm, and the mass fraction of the micro-nano copper powder in the inner layer of the tube is 0.1-1%.
7. The pipe with the functions of bacteriostasis and scaling prevention as claimed in claim 1, wherein the copper ion content of the copper-loaded montmorillonite is 50-100 mg/g, the grain diameter is 500 nanometers-1 micron, and the mass fraction of the copper-loaded montmorillonite in the inner layer of the pipe is 0.5-5%.
8. The anti-bacteria and anti-scaling functional pipe as claimed in claim 1, wherein the particle size of the copper-loaded montmorillonite hybrid material is 500 nm-1 micron, and the mass fraction of the copper-loaded montmorillonite hybrid material in the inner layer of the pipe is 0.5-5%.
9. The bacteriostatic and anti-scaling functional pipe as claimed in claim 8, wherein the preparation method of the copper-loaded montmorillonite hybrid material comprises the following specific steps:
adding montmorillonite into a copper sulfate pentahydrate solution, carrying out microwave stirring, reacting for 6 hours at 40-60 ℃, carrying out centrifugal treatment until montmorillonite is completely precipitated, then washing with deionized water, and reserving part of water to form a suspension to obtain a copper-loaded montmorillonite primary product; adding into an ethanol solution of aminosilane, adjusting the pH value to 3-5 by using glacial acetic acid, and carrying out reflux stirring for 6h at the temperature of 80 ℃; filtering after the reaction is finished, washing with deionized water, and adding water to form copper-loaded organic modified montmorillonite suspension; and finally, blending the mixture with graphene oxide suspension, continuously stirring for 2 hours after ultrasonic treatment is carried out for 1 hour, and then precipitating, filtering, freezing and drying to prepare the copper-loaded montmorillonite hybrid material.
10. The anti-bacteria and anti-scaling functional pipe as claimed in claim 1, wherein the outer layer matrix resin material of the pipe is one of PPR, PE, PERT and PB.
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| CN201910031542.8A CN111434966A (en) | 2019-01-14 | 2019-01-14 | Antibacterial anti-scaling functional pipe |
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| CN104194200A (en) * | 2014-07-29 | 2014-12-10 | 锐展(铜陵)科技有限公司 | Antibacterial polyvinyl chloride tube and preparation method thereof |
| CN107793695A (en) * | 2017-11-03 | 2018-03-13 | 重庆众誉材工科技有限公司 | A kind of glass fiber reinforced acetal resin and preparation method thereof |
| CN209430893U (en) * | 2019-01-14 | 2019-09-24 | 上海伟星新型建材有限公司 | A kind of antibacterial good antiscale property function pipe |
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