CN115056557B - High-impact anti-fouling antibacterial PPR pipe and preparation method thereof - Google Patents
High-impact anti-fouling antibacterial PPR pipe and preparation method thereof Download PDFInfo
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- 230000003373 anti-fouling effect Effects 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title abstract description 13
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- 229920005989 resin Polymers 0.000 claims abstract description 39
- YAWWQIFONIPBKT-HXUWFJFHSA-N 2-[[(2r)-2-butyl-6,7-dichloro-2-cyclopentyl-1-oxo-3h-inden-5-yl]oxy]acetic acid Chemical compound C1([C@@]2(C(C3=C(Cl)C(Cl)=C(OCC(O)=O)C=C3C2)=O)CCCC)CCCC1 YAWWQIFONIPBKT-HXUWFJFHSA-N 0.000 claims abstract description 34
- 239000004014 plasticizer Substances 0.000 claims abstract description 34
- 239000012745 toughening agent Substances 0.000 claims abstract description 34
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 22
- 239000003242 anti bacterial agent Substances 0.000 claims abstract description 20
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- 239000007822 coupling agent Substances 0.000 claims abstract description 20
- 239000000203 mixture Substances 0.000 claims description 12
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- WNLRTRBMVRJNCN-UHFFFAOYSA-L adipate(2-) Chemical compound [O-]C(=O)CCCCC([O-])=O WNLRTRBMVRJNCN-UHFFFAOYSA-L 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
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- 238000007493 shaping process Methods 0.000 claims description 3
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- 238000012986 modification Methods 0.000 claims description 2
- 230000004048 modification Effects 0.000 claims description 2
- 230000000845 anti-microbial effect Effects 0.000 claims 4
- 239000002671 adjuvant Substances 0.000 claims 1
- 230000009471 action Effects 0.000 abstract description 3
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- 244000005700 microbiome Species 0.000 description 2
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- 229920005630 polypropylene random copolymer Polymers 0.000 description 2
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
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- LZJUZSYHFSVIGJ-UHFFFAOYSA-N ditridecyl hexanedioate Chemical compound CCCCCCCCCCCCCOC(=O)CCCCC(=O)OCCCCCCCCCCCCC LZJUZSYHFSVIGJ-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B1/00—Layered products having a non-planar shape
- B32B1/08—Tubular products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
-
- 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
- C08L23/14—Copolymers of propene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/02—2 layers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/24—All layers being polymeric
- B32B2250/242—All polymers belonging to those covered by group B32B27/32
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/558—Impact strength, toughness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
- B32B2307/7145—Rot proof, resistant to bacteria, mildew, mould, fungi
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2597/00—Tubular articles, e.g. hoses, pipes
-
- 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
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- 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
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- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention relates to the technical field of pipes, and particularly discloses a high-impact anti-fouling antibacterial PPR pipe and a preparation method thereof. The high-impact anti-fouling antibacterial PPR pipe comprises an inner layer pipe and an outer layer pipe, wherein the outer layer pipe comprises the following components in parts by weight: 85-95 parts of PPR resin, 3-8 parts of organosilicon toughening agent, 1.5-4 parts of DIOA plasticizer and 0.1-1 part of coupling agent, wherein the inner layer tube comprises the following components in parts by weight: 90-95 parts of PPR resin, 1-2 parts of antibacterial agent and 2-8 parts of hydrophobic auxiliary agent. The PPR pipe has high impact resistance, scale resistance and antibacterial performance; wherein, under the combined action of the organosilicon toughening agent and the DIOA plasticizer, the low-temperature impact resistance of the PPR is effectively improved.
Description
Technical Field
The invention relates to the technical field of pipes, in particular to a high-impact anti-fouling antibacterial PPR pipe and a preparation method thereof.
Background
The PPR (polypropylene random) tube is also called a tripropylene polypropylene tube, a polypropylene random copolymer tube or a PP-R tube, and is a tube material adopting polypropylene random copolymer as a raw material. The PPR pipe has the advantages of good heat insulation, corrosion resistance, heat resistance, pressure resistance, light weight and the like, and is called a pipeline product with great cost benefit. However, PPR pipes also have some drawbacks: 1. due to the structural reason of the PPR base material, the low-temperature impact performance of the PPR pipeline is poor, and the popularization and the application of the PPR pipeline are severely limited. 2. Along with the extension of live time, the internal surface of PPR pipeline can breed the bacterium, forms the stickness material of adhering to at the pipeline internal surface, if not handle in time, still can form more incrustation scale filth that are difficult to clear up, seriously influences quality of water.
In view of the above problems in the prior art, there is a need to develop a PPR pipe having good low-temperature impact properties and good antibacterial and anti-fouling properties.
Disclosure of Invention
In order to solve the defects in the prior art, the invention aims to provide a high-impact anti-fouling antibacterial PPR pipe and a preparation method thereof.
In order to realize the purpose, the invention adopts the technical scheme that:
the utility model provides a high anti-impact anti-dirt antibiotic PPR pipe, includes inlayer pipe and outer layer pipe, outer layer pipe includes the component of following part by weight: 85-95 parts of PPR resin, 3-8 parts of organosilicon toughening agent, 1.5-4 parts of DIOA plasticizer and 0.1-1 part of coupling agent, wherein the inner layer tube comprises the following components in parts by weight: 90-95 parts of PPR resin, 1-2 parts of antibacterial agent and 2-8 parts of hydrophobic auxiliary agent.
Preferably, the silicone toughening agent is a silicone-acrylate copolymer.
Preferably, the DIOA plasticizer is a dibasic adipate.
The invention adopts the organic silicon toughening agent and the DIOA plasticizer to modify the PPR, and can effectively improve the low-temperature impact resistance of the PPR under the combined action of the organic silicon toughening agent and the DIOA plasticizer. In one aspect, the PPR resin is a non-polar material and the DIOA plasticizer is a low polarity dibasic adipate that provides a through-hole plasticizing effect for the PPR resin, plasticizing from the surface inward. Meanwhile, the DIOA plasticizer can drive the organic silicon toughening agent to permeate into the PPR for toughening.
Research shows that if only DIOA plasticizer is used, the plasticizing effect of the DIOA plasticizer cannot effectively improve the low-temperature impact resistance of PPR; if only the organic silicon toughening agent is used, the organic silicon toughening agent is difficult to enter the interior of the PPR, so that only the surface expansion toughening effect can be achieved, and the low-temperature impact resistance of the PPR can not be effectively improved.
Preferably, in the high impact, anti-fouling and antibacterial PPR pipe, the outer layer pipe comprises the following components in parts by weight: 91.5 parts of PPR resin, 5 parts of organosilicon toughening agent, 3 parts of DIOA plasticizer and 0.5 part of coupling agent; the inner-layer pipe comprises the following components in parts by weight: 93.5 parts of PPR resin, 1.5 parts of antibacterial agent and 5 parts of hydrophobic auxiliary agent.
Preferably, the antimicrobial agent is an iHeir-ECO antimicrobial agent. The iHeir-ECO is a high-efficiency antibacterial agent, has better thermal stability which can reach 350 ℃, can be fused into the PPR material through a melt extrusion process, enables the antibacterial components to be uniformly distributed in the whole PPR pipe, effectively protects the PPR pipe from being attacked by microorganisms, and prevents viscous substances and scale dirt from being attached to the inner wall of the PPR pipe.
Preferably, the weight ratio of the silicone toughening agent to the DIOA plasticizer is 2-3.
Preferably, the coupling agent is at least one of a silane coupling agent KH-570 and a silane coupling agent KH-550.
Preferably, the hydrophobic auxiliary agent is an organic silicon modifier, and when the hydrophobic auxiliary agent is added into PPR, the inner surface of the plastic pipe can be endowed with lower surface energy and friction coefficient, the dirt resistance of the inner surface of the plastic pipe is obviously improved, the water surface contact angle of the inner wall of the pipe exceeds 110 degrees, and the pipe blockage and fine germ breeding caused by accumulation of dirt and scale can be effectively prevented.
The invention also provides a preparation method of the high-impact anti-fouling antibacterial PPR pipe, which comprises the following steps:
(1) According to the formula proportion of the outer layer pipe, mixing the PPR resin, the organic silicon toughening agent, the DIOA plasticizer and the coupling agent, and uniformly stirring to obtain a mixture 1;
(2) Mixing the PPR resin, the antibacterial agent and the hydrophobic auxiliary agent according to the formula proportion of the inner-layer pipe, and uniformly stirring to obtain a mixture 2;
(3) Adding the mixture 1 into an outer-layer single-screw extruder, adding the mixture 2 into an inner-layer single-screw extruder, extruding by a double-layer co-extrusion die, and carrying out vacuum sizing, cooling and shaping, traction, cutting or coil pipe forming to obtain the PPR pipe.
Preferably, the processing temperatures of the outer layer single-screw extruder and the inner layer single-screw extruder are respectively as follows: 190-230 ℃ in the first zone to the fifth zone, and 200-230 ℃ in the die head.
The invention has the beneficial effects that: the PPR pipe has high impact resistance, scale resistance and antibacterial performance; wherein, under the combined action of the organosilicon toughening agent and the DIOA plasticizer, the low-temperature impact resistance of the PPR is effectively improved; the iHeir-ECO antibacterial agent effectively protects the PPR pipe from being attacked by microorganisms, the hydrophobic auxiliary agent can obviously reduce the friction coefficient of the inner surface of the pipe, the smoothness of the pipe is improved, deposition of scale on the inner wall of the pipe is reduced, adhesion of sticky substances and scale dirt on the inner wall of the PPR pipe is prevented, and the iHeir-ECO antibacterial agent can be melted into the PPR material through a melt extrusion process and is convenient to use.
Detailed Description
To better illustrate the objects, aspects and advantages of the present invention, the present invention is further illustrated by the following examples. It is apparent that the following examples are only a part of the embodiments of the present invention, and not all of them. It should be understood that the embodiments of the present invention are only for illustrating the technical effects of the present invention, and are not intended to limit the scope of the present invention.
The raw material sources are as follows:
PPR resin, model 4220, purchased from north-petitchiness swiftlet, beijing, china.
An organosilicon toughening agent, belonging to organosilicon-acrylate copolymer, model S-203, which is purchased from Guangzhou Donggin plastic science and technology Limited;
DIOA plasticizer (dibasic adipate), model PLASTHALL DTDA, available from HALLSTAR;
an antimicrobial agent, model iHeir-ECO, available from Ai Haoer antimildew, antibacterial science and technology, inc., guangzhou;
the coupling agent is a silane coupling agent KH-550 which is purchased from Sanishui chemical engineering Co., ltd;
a hydrophobic auxiliary agent,
SF series, available from New silicon coating materials, inc., guangzhou.
Example 1
A high-impact anti-fouling antibacterial PPR pipe is a double-layer structure consisting of an inner layer pipe and an outer layer pipe. The outer layer pipe is prepared from the following components in parts by weight: 85 parts of PPR resin, 8 parts of organosilicon toughening agent, 4 parts of DIOA plasticizer and 1 part of coupling agent; the inner layer pipe is prepared from the following components in parts by weight: 90 parts of PPR resin, 1 part of antibacterial agent and 8 parts of hydrophobic auxiliary agent.
The preparation method of the high-impact anti-fouling antibacterial PPR pipe comprises the following steps:
(1) According to the formula proportion of the outer layer pipe, mixing the PPR resin, the organic silicon toughening agent, the DIOA plasticizer and the coupling agent, and uniformly stirring to obtain a mixture 1;
(2) Mixing the PPR resin, the antibacterial agent and the hydrophobic auxiliary agent according to the formula proportion of the inner-layer pipe, and uniformly stirring to obtain a mixture 2;
(3) Adding the mixture 1 into an outer-layer single-screw extruder, adding the mixture 2 into an inner-layer single-screw extruder, extruding by a double-layer co-extrusion die, and carrying out vacuum sizing, cooling and shaping, traction, cutting or coil pipe forming to obtain the PPR pipe. The processing temperatures of the outer layer single-screw extruder and the inner layer single-screw extruder are respectively as follows: the first zone is 190 ℃, the second zone is 200 ℃, the third zone is 210 ℃, the fourth zone is 220 ℃, the fifth zone is 230 ℃ and the die head is 200-230 ℃.
Example 2
A high-impact anti-fouling antibacterial PPR pipe is a double-layer structure consisting of an inner layer pipe and an outer layer pipe. The outer layer pipe is prepared from the following components in parts by weight: 91.5 parts of PPR resin, 5 parts of organosilicon toughening agent, 3 parts of DIOA plasticizer and 0.5 part of coupling agent; the inner layer pipe is prepared from the following components in parts by weight: 93.5 parts of PPR resin, 1.5 parts of antibacterial agent and 5 parts of hydrophobic auxiliary agent.
Preparation method of high impact, anti-fouling and antibacterial PPR pipe of example 2 the preparation method of example 1 was referenced.
Example 3
A high-impact anti-fouling antibacterial PPR pipe is of a double-layer structure consisting of an inner layer pipe and an outer layer pipe. The outer layer pipe is prepared from the following components in parts by weight: 95 parts of PPR resin, 3 parts of organosilicon toughening agent, 1.5 parts of DIOA plasticizer and 0.1 part of coupling agent; the inner layer pipe is prepared from the following components in parts by weight: 95 parts of PPR resin, 2 parts of antibacterial agent and 2 parts of hydrophobic auxiliary agent.
Preparation method of high impact, anti-fouling and antibacterial PPR pipe of example 3 the preparation method of example 1 was referenced.
Example 4
A high-impact anti-fouling antibacterial PPR pipe is a double-layer structure consisting of an inner layer pipe and an outer layer pipe. The outer layer pipe is prepared from the following components in parts by weight: 91.5 parts of PPR resin, 5.3 parts of organosilicon toughening agent, 2.7 parts of DIOA plasticizer and 0.5 part of coupling agent; the inner layer pipe is prepared from the following components in parts by weight: 93.5 parts of PPR resin, 1.5 parts of antibacterial agent and 5 parts of hydrophobic auxiliary agent.
The preparation method of the high impact, anti-fouling and antibacterial PPR pipe in the example 4 is the same as that of the example 2.
Example 5
A high-impact anti-fouling antibacterial PPR pipe is a double-layer structure consisting of an inner layer pipe and an outer layer pipe. The outer layer pipe is prepared from the following components in parts by weight: 91.5 parts of PPR resin, 5.7 parts of organosilicon toughening agent, 2.3 parts of DIOA plasticizer and 0.5 part of coupling agent; the inner layer pipe is prepared from the following components in parts by weight: 93.5 parts of PPR resin, 1.5 parts of antibacterial agent and 5 parts of hydrophobic auxiliary agent.
The preparation method of the high impact, anti-fouling and antibacterial PPR pipe in the example 5 is the same as that of the example 2.
Example 6
A high-impact anti-fouling antibacterial PPR pipe is a double-layer structure consisting of an inner layer pipe and an outer layer pipe. The outer layer pipe is prepared from the following components in parts by weight: 91.5 parts of PPR resin, 6 parts of organosilicon toughening agent, 2 parts of DIOA plasticizer and 0.5 part of coupling agent; the inner layer pipe is prepared from the following components in parts by weight: 93.5 parts of PPR resin, 1.5 parts of antibacterial agent and 5 parts of hydrophobic auxiliary agent.
The high impact, anti-fouling and antibacterial PPR pipe of example 6 was prepared according to the same method as example 2.
Example 7
A high-impact anti-fouling antibacterial PPR pipe is of a double-layer structure consisting of an inner layer pipe and an outer layer pipe. The outer layer pipe is prepared from the following components in parts by weight: 91.5 parts of PPR resin, 6.2 parts of organosilicon toughening agent, 1.8 parts of DIOA plasticizer and 0.5 part of coupling agent; the inner layer pipe is prepared from the following components in parts by weight: 93.5 parts of PPR resin, 1.5 parts of antibacterial agent and 5 parts of hydrophobic auxiliary agent.
The high impact, anti-fouling and antibacterial PPR pipe of example 7 was prepared according to the same method as example 2.
Comparative example 1
A PPR pipe is a double-layer structure consisting of an inner layer pipe and an outer layer pipe. The outer layer pipe is prepared from the following components in parts by weight: 91.5 parts of PPR resin, 8 parts of organosilicon toughening agent, 0 part of DIOA plasticizer and 0.5 part of coupling agent; the inner layer pipe is prepared from the following components in parts by weight: 93.5 parts of PPR resin, 1.5 parts of antibacterial agent and 5 parts of hydrophobic auxiliary agent.
The PPR pipe of comparative example 1 was prepared in the same manner as in example 2.
Comparative example 2
A PPR pipe is a double-layer structure consisting of an inner layer pipe and an outer layer pipe. The outer layer pipe is prepared from the following components in parts by weight: 91.5 parts of PPR resin, 0 part of organosilicon toughening agent, 8 parts of DIOA plasticizer and 0.5 part of coupling agent; the inner layer pipe is prepared from the following components in parts by weight: 93.5 parts of PPR resin, 1.5 parts of antibacterial agent and 5 parts of hydrophobic assistant.
The PPR pipe of comparative example 2 was prepared in the same manner as in example 2.
Comparative example 3
A PPR pipe is a double-layer structure consisting of an inner layer pipe and an outer layer pipe, wherein the inner layer pipe and the outer layer pipe are both made of PPR resin.
The PPR pipe of comparative example 3 was prepared as follows: respectively adding PPR resin into an outer layer single-screw extruder and an inner layer single-screw extruder, extruding by a double-layer co-extrusion die, and carrying out vacuum sizing, cooling sizing, traction, cutting or coil pipe forming to obtain the PPR pipe. The processing temperatures of the outer layer single-screw extruder and the inner layer single-screw extruder are respectively as follows: the first zone is 190 ℃, the second zone is 200 ℃, the third zone is 210 ℃, the fourth zone is 220 ℃, the fifth zone is 230 ℃ and the die head is 200-230 ℃. .
And (3) performance testing:
the PPR pipes prepared in examples 1 to 7 and comparative examples 1 to 3 were subjected to low temperature impact property and antibacterial property tests.
The test method comprises the following steps:
low temperature notched impact strength: reference ISO180-93;
antibacterial property: the detection is carried out according to the QB/T2591-2003 and GB/T18742.2-2002 detection methods and standards.
The test results are shown in the following table.
As can be seen from the test results in the table above, the PPR pipe prepared by the formula of the invention has better low-temperature impact property and antibacterial property. Among them, it can be seen from examples 2 and 4-7 that the weight ratio of the silicone toughening agent to the DIOA plasticizer affects the low-temperature impact properties of the PPR pipe, and that the low-temperature impact properties of the PPR pipe are better when the weight ratio of the silicone toughening agent to the DIOA plasticizer is 2-3. As can be seen from comparative examples 1-2, the low temperature impact performance of the PPR pipe is significantly reduced when only the silicone toughener or the DIOA plasticizer is used. This is because when DIOA plasticizer is used alone, its plasticizing effect cannot effectively improve the low-temperature impact resistance of PPR. When only the organosilicon toughening agent is used, the organosilicon toughening agent is difficult to enter the interior of the PPR, so that only the surface expansion toughening effect can be achieved.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the protection scope of the present invention, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (8)
1. The utility model provides a high anti-impact anti-dirt antibiotic PPR pipe which characterized in that, includes inlayer pipe and outer layer pipe, outer layer pipe includes the component of following parts by weight: 85-95 parts of PPR resin, 3-8 parts of organosilicon toughening agent, 1.5-4 parts of DIOA plasticizer and 0.1-1 part of coupling agent, wherein the inner layer pipe comprises the following components in parts by weight: 90-95 parts of PPR resin, 1-2 parts of antibacterial agent and 2-8 parts of hydrophobic auxiliary agent; the organic silicon toughening agent is organic silicon-acrylate copolymer, and the DIOA plasticizer is dibasic adipate.
2. The high impact, anti-fouling and antibacterial PPR pipe according to claim 1, wherein the outer layer pipe comprises the following components in parts by weight: 91.5 parts of PPR resin, 5 parts of organosilicon toughening agent, 3 parts of DIOA plasticizer and 0.5 part of coupling agent; the inner-layer pipe comprises the following components in parts by weight: 93.5 parts of PPR resin, 1.5 parts of antibacterial agent and 5 parts of hydrophobic auxiliary agent.
3. The high impact, anti-fouling, antimicrobial PPR pipe of claim 1, wherein the weight ratio of silicone toughener to DIOA plasticizer is 2-3.
4. The high impact, anti-fouling, antimicrobial PPR tube of claim 1 or 2, wherein said antimicrobial agent is an iHeir-ECO antimicrobial agent.
5. The high impact, anti-fouling, antimicrobial PPR pipe of claim 1 or 2, wherein said coupling agent is at least one of a silane coupling agent KH-570, a silane coupling agent KH-550.
6. The high impact, anti-fouling, antimicrobial PPR pipe of claim 1 or 2, wherein said hydrophobic adjuvant is an organosilicon modification.
7. The method for preparing a high impact, anti-fouling and antibacterial PPR pipe as claimed in any one of claims 1 to 6, comprising the steps of:
(1) According to the formula proportion of the outer layer pipe, mixing the PPR resin, the organic silicon toughening agent, the DIOA plasticizer and the coupling agent, and uniformly stirring to obtain a mixture 1;
(2) Mixing the PPR resin, the antibacterial agent and the hydrophobic auxiliary agent according to the formula proportion of the inner-layer pipe, and uniformly stirring to obtain a mixture 2;
(2) Adding the mixture 1 into an outer-layer single-screw extruder, adding the mixture 2 into an inner-layer single-screw extruder, extruding by a double-layer co-extrusion die, and carrying out vacuum sizing, cooling and shaping, traction, cutting or coil pipe forming to obtain the PPR pipe.
8. The method for preparing the high impact, anti-scaling and antibacterial PPR pipe as claimed in claim 7, wherein the processing temperatures of the outer layer single screw extruder and the inner layer single screw extruder are respectively: 190-230 ℃ in the first zone to the fifth zone, and 200-230 ℃ in the die head.
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| CN202210914280.1A CN115056557B (en) | 2022-07-27 | 2022-07-27 | High-impact anti-fouling antibacterial PPR pipe and preparation method thereof |
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| CN202210914280.1A CN115056557B (en) | 2022-07-27 | 2022-07-27 | High-impact anti-fouling antibacterial PPR pipe and preparation method thereof |
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| CN115056557B true CN115056557B (en) | 2023-04-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103146053A (en) * | 2011-12-07 | 2013-06-12 | 张庆之 | Low-temperature resistance and high-toughness plastic |
| CN104086904A (en) * | 2014-07-25 | 2014-10-08 | 贵州师范大学 | Ultralow temperature impact toughness-resistant PP-R pipe material and preparation method thereof |
| CN110655710B (en) * | 2018-06-29 | 2022-05-10 | 合肥杰事杰新材料股份有限公司 | Scratch-resistant impact-resistant polypropylene material and preparation method thereof |
| CN109880360B (en) * | 2019-02-22 | 2021-08-31 | 河南城建学院 | High-cold impact resistant nylon composite material and preparation method thereof |
| CN110452461A (en) * | 2019-08-19 | 2019-11-15 | 汕头市精通实业有限公司 | A kind of polypropylene modification plastics |
| CN113292793A (en) * | 2021-02-05 | 2021-08-24 | 武汉市九牧管业科技有限公司 | Anti-fouling and antibacterial PP-R double-layer pipe and preparation method thereof |
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