CN107501695A - A kind of antimicrobial form polyvinyl piping materials and preparation method thereof - Google Patents
A kind of antimicrobial form polyvinyl piping materials and preparation method thereof Download PDFInfo
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- CN107501695A CN107501695A CN201710933316.XA CN201710933316A CN107501695A CN 107501695 A CN107501695 A CN 107501695A CN 201710933316 A CN201710933316 A CN 201710933316A CN 107501695 A CN107501695 A CN 107501695A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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- 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
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- 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
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- 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
- C08K2201/006—Additives being defined by their surface area
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- 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
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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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
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
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- Rigid Pipes And Flexible Pipes (AREA)
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Abstract
The invention discloses a kind of antimicrobial form polyvinyl piping materials and preparation method thereof, are as made from the raw material of following parts by weight：97 99 parts of high-density polyethylene resin, 0.1 1.0 parts of crosslinking agent, 0.2 1.2 parts of antioxidant, 0.1 0.5 parts of compatilizer, 0.1 0.5 parts of 2 hydroxyl, 4 methoxy benzophenone, 0.1 0.3 parts of antiseptic, 0.05 0.09 parts of Trimethoprim, 0.1 0.2 parts of modifying agent.The antimicrobial form polyvinyl piping materials of the present invention are significantly improved the anti-microbial property of polyvinyl piping materials, are made bacterium and microbial cell dead, reduce the secondary pollution in water delivery code, keep water cleaning health by the double action of antiseptic and Trimethoprim.Modifying agent can significantly increase the mechanical property of polyvinyl piping materials.The preparation method of the present invention is simple and easy, has fabulous application prospect and social benefit.
Description
Technical field
The present invention relates to a kind of polyvinyl piping materials, and in particular to a kind of antimicrobial form polyvinyl piping materials and preparation method thereof.
Background technology
Polyvinyl piping materials are that a kind of crystallinity is high, nonpolar thermoplastic resin tubing, because polyvinyl piping materials have nothing
Malicious, tasteless, odorless, good cold-resistant, heat resistance and chemical stability, higher rigidity and toughness, and good mechanical property, peace
Many advantages, such as facilitating is filled, is widely used in building to, the field such as draining, buried drain pipe, appendix and telecommunications engineering.
But polyvinyl piping materials outdoor storage or in use, in the presence of ultraviolet light, easily occurs aging, changes colour, becomes fragile
Even efflorescence, so as to lose its mechanical property, have impact on the use of polyvinyl piping materials, thus need to change polyvinyl piping materials
It is good, preferable ageing resistace is made it have, extends service life and extension use range.
On the other hand, polyvinyl piping materials are largely used to convey drinking water, to the antibacterial and bacteriostasis of polyvinyl piping materials
Propose high requirement.For improve polyvinyl piping materials antibacterial and fungistatic effect, prior art mainly by add silver,
The inorganic antiseptics such as copper, zinc, titanium and realize, although simple inorganic antiseptic have heat endurance it is good, plastic extrusion and plus
The advantages that will not decomposing and go bad during work, but the mankind drink drinking containing inorganic antiseptics such as silver, copper, zinc, titaniums for a long time
Water, the liver of human body can be adversely affected, so, which also limits the application of inorganic antiseptic, using organic antibacterial agent
Substituting inorganic antiseptic turns into current study hotspot and development trend.
The content of the invention
The invention provides a kind of antimicrobial form polyvinyl piping materials.
Present invention also offers the preparation method of the antimicrobial form polyvinyl piping materials.
The purpose of the present invention is achieved through the following technical solutions：
A kind of antimicrobial form polyvinyl piping materials, it is as made from the raw material of following parts by weight：High-density polyethylene resin 97-99
Part, crosslinking agent 0.1-1.0 parts, antioxidant 0.2-1.2 parts, compatilizer 0.1-0.5 parts, ESCALOL 567
0.1-0.5 parts, antiseptic 0.1-0.3 parts, Trimethoprim 0.05-0.09 parts, modifying agent 0.1-0.2 parts.
Described, antiseptic is according to 0.2-0.4 by methylisothiazolinone and titanium dioxide：Made from 1 weight ratio.
The particle diameter of titanium dioxide used in the present invention is 30-50nm.
Described, Trimethoprim is that diethanol monoisopropanolamine cis-butenedioic anhydride compounds and ethylenediamine tetra-acetic acid are pressed
According to 1：Made from 0.5-0.7 weight ratio.
Described, diethanol monoisopropanolamine cis-butenedioic anhydride compounds are prepared by the following method to obtain：
Diethanol monoisopropanolamine and maleic anhydride are added in reactor, catalyst is added, 0.4MPa is decompressed under stirring condition,
Heating, temperature control maintenance system constant temperature, per the acidity for determining a system every other hour, become at 100 DEG C to acid number without obvious
React and stop during change；Room temperature is subsequently cooled to, successively with saturated sodium carbonate solution and distillation water washing, obtains diethanol list isopropyl
Hydramine cis-butenedioic anhydride compounds.
Described, modifying agent is as made from following methods：By triethylene tetramine and hydrophily gas phase nano silica
It is dissolved in ethanol, is well mixed, stand, solidify, dries, obtain modifying agent.
Described, the weight ratio of triethylene tetramine and hydrophily gas phase nano silica is 1：0.7-0.9.
The particle diameter of hydrophily gas phase nano silica of the present invention is 20-40nm, specific surface area >=120m2/g。
Described, crosslinking agent is TBHP, cumyl peroxide or benzoyl peroxide；The antioxidant
It is according to 1 by antioxidant 1010 and irgasfos 168：Made from 0.6-0.8 weight ratio；The compatilizer is grafted for maleic anhydride
Polypropylene or maleic anhydride grafted polyethylene.
A kind of preparation method of antimicrobial form polyvinyl piping materials, is as made from following steps：
1) by high-density polyethylene resin, crosslinking agent, antioxidant, compatilizer, ESCALOL 567 and anti-
Microbial inoculum is well mixed, and 10-15min is stirred in homogenizer, obtains just material；
2) Trimethoprim and modifying agent is added in just expecting, stirs 5-10min, material must be pre-processed；
3) pretreatment material is passed through into plunger-type extruder extrusion molding, obtains antimicrobial form polyvinyl piping materials.
Described, during extrusion molding：90-110 DEG C of feed zone temperature, connect 150-170 DEG C of temperature, die temperature
230-260 DEG C, 190-205 DEG C of heat conduction oil temperature, speed of production 1.0-1.5m/min.
Beneficial effects of the present invention：The antimicrobial form polyvinyl piping materials of the present invention are dual by antiseptic and Trimethoprim
Effect, the anti-microbial property of polyvinyl piping materials is significantly improved, make bacterium and microbial cell dead, reduce secondary in water delivery code
Pollution, keep water cleaning health.Modifying agent can significantly increase the mechanical property of polyvinyl piping materials.The preparation method letter of the present invention
It is single easy, there is fabulous application prospect and social benefit.
Embodiment
With reference to specific embodiment, the present invention will be further described.
The present invention is raw materials used unless otherwise specified, is market routinely purchase gained.
Embodiment 1
A kind of antimicrobial form polyvinyl piping materials, it is as made from the raw material of following parts by weight：97 parts of high-density polyethylene resin,
It is 1 part of crosslinking agent, 0.2 part of antioxidant, 0.1 part of compatilizer, 0.5 part of ESCALOL 567,0.1 part of antiseptic, anti-
0.05 part of bacterium synergist, 0.2 part of modifying agent.
Described, antiseptic is according to 0.4 by methylisothiazolinone and titanium dioxide：Made from 1 weight ratio.
Described, Trimethoprim is that diethanol monoisopropanolamine cis-butenedioic anhydride compounds and ethylenediamine tetra-acetic acid are pressed
According to 1：Made from 0.5 weight ratio.
Described, diethanol monoisopropanolamine cis-butenedioic anhydride compounds are prepared by the following method to obtain：
Diethanol monoisopropanolamine and maleic anhydride are added in reactor, catalyst is added, 0.4MPa is decompressed under stirring condition,
Heating, temperature control maintenance system constant temperature, per the acidity for determining a system every other hour, become at 100 DEG C to acid number without obvious
React and stop during change；Room temperature is subsequently cooled to, successively with saturated sodium carbonate solution and distillation water washing, obtains diethanol list isopropyl
Hydramine cis-butenedioic anhydride compounds.
Described, modifying agent is as made from following methods：By triethylene tetramine and hydrophily gas phase nano silica
It is dissolved in ethanol, is well mixed, stand, solidify, dries, obtain modifying agent.
Described, the weight ratio of triethylene tetramine and hydrophily gas phase nano silica is 1：0.9.
Described, crosslinking agent is TBHP, cumyl peroxide or benzoyl peroxide；The antioxidant
It is according to 1 by antioxidant 1010 and irgasfos 168：Made from 0.6 weight ratio；The compatilizer is maleic anhydride grafting poly- third
Alkene or maleic anhydride grafted polyethylene.
A kind of preparation method of antimicrobial form polyvinyl piping materials, is as made from following steps：
1) by high-density polyethylene resin, crosslinking agent, antioxidant, compatilizer, ESCALOL 567 and anti-
Microbial inoculum is well mixed, and 10min is stirred in homogenizer, obtains just material；
2) Trimethoprim and modifying agent is added in just expecting, stirs 10min, material must be pre-processed；
3) pretreatment material is passed through into plunger-type extruder extrusion molding, obtains antimicrobial form polyvinyl piping materials.
Described, during extrusion molding：90 DEG C of feed zone temperature, 170 DEG C of temperature is connected, 230 DEG C of die temperature, is led
205 DEG C of hot oil temperature, speed of production 1.0m/min.
Embodiment 2
A kind of antimicrobial form polyvinyl piping materials, it is as made from the raw material of following parts by weight：98 parts of high-density polyethylene resin,
0.5 part of crosslinking agent, 0.8 part of antioxidant, 0.3 part of compatilizer, 0.3 part of ESCALOL 567,0.2 part of antiseptic,
0.07 part of Trimethoprim, 0.15 part of modifying agent.
Described, antiseptic is according to 0.3 by methylisothiazolinone and titanium dioxide：Made from 1 weight ratio.
Described, Trimethoprim is that diethanol monoisopropanolamine cis-butenedioic anhydride compounds and ethylenediamine tetra-acetic acid are pressed
According to 1：Made from 0.6 weight ratio.
Described, diethanol monoisopropanolamine cis-butenedioic anhydride compounds are prepared by the following method to obtain：
Diethanol monoisopropanolamine and maleic anhydride are added in reactor, catalyst is added, 0.4MPa is decompressed under stirring condition,
Heating, temperature control maintenance system constant temperature, per the acidity for determining a system every other hour, become at 100 DEG C to acid number without obvious
React and stop during change；Room temperature is subsequently cooled to, successively with saturated sodium carbonate solution and distillation water washing, obtains diethanol list isopropyl
Hydramine cis-butenedioic anhydride compounds.
Described, modifying agent is as made from following methods：By triethylene tetramine and hydrophily gas phase nano silica
It is dissolved in ethanol, is well mixed, stand, solidify, dries, obtain modifying agent.
Described, the weight ratio of triethylene tetramine and hydrophily gas phase nano silica is 1：0.8.
Described, crosslinking agent is TBHP, cumyl peroxide or benzoyl peroxide；The antioxidant
It is according to 1 by antioxidant 1010 and irgasfos 168：Made from 0.7 weight ratio；The compatilizer is maleic anhydride grafting poly- third
Alkene or maleic anhydride grafted polyethylene.
A kind of preparation method of antimicrobial form polyvinyl piping materials, is as made from following steps：
1) by high-density polyethylene resin, crosslinking agent, antioxidant, compatilizer, ESCALOL 567 and anti-
Microbial inoculum is well mixed, and 13min is stirred in homogenizer, obtains just material；
2) Trimethoprim and modifying agent is added in just expecting, stirs 8min, material must be pre-processed；
3) pretreatment material is passed through into plunger-type extruder extrusion molding, obtains antimicrobial form polyvinyl piping materials.
Described, during extrusion molding：100 DEG C of feed zone temperature, 160 DEG C of temperature of connection, 245 DEG C of die temperature,
200 DEG C of heat conduction oil temperature, speed of production 1.3m/min.
Embodiment 3
A kind of antimicrobial form polyvinyl piping materials, it is as made from the raw material of following parts by weight：99 parts of high-density polyethylene resin,
0.1 part of crosslinking agent, 1.2 parts of antioxidant, 0.5 part of compatilizer, 0.1 part of ESCALOL 567,0.3 part of antiseptic,
0.09 part of Trimethoprim, 0.1 part of modifying agent.
Described, antiseptic is according to 0.2 by methylisothiazolinone and titanium dioxide：Made from 1 weight ratio.
Described, Trimethoprim is that diethanol monoisopropanolamine cis-butenedioic anhydride compounds and ethylenediamine tetra-acetic acid are pressed
According to 1：Made from 0.7 weight ratio.
Described, diethanol monoisopropanolamine cis-butenedioic anhydride compounds are prepared by the following method to obtain：
Diethanol monoisopropanolamine and maleic anhydride are added in reactor, catalyst is added, 0.4MPa is decompressed under stirring condition,
Heating, temperature control maintenance system constant temperature, per the acidity for determining a system every other hour, become at 100 DEG C to acid number without obvious
React and stop during change；Room temperature is subsequently cooled to, successively with saturated sodium carbonate solution and distillation water washing, obtains diethanol list isopropyl
Hydramine cis-butenedioic anhydride compounds.
Described, modifying agent is as made from following methods：By triethylene tetramine and hydrophily gas phase nano silica
It is dissolved in ethanol, is well mixed, stand, solidify, dries, obtain modifying agent.
Described, the weight ratio of triethylene tetramine and hydrophily gas phase nano silica is 1：0.7.
Described, crosslinking agent is TBHP, cumyl peroxide or benzoyl peroxide；The antioxidant
It is according to 1 by antioxidant 1010 and irgasfos 168：Made from 0.8 weight ratio；The compatilizer is maleic anhydride grafting poly- third
Alkene or maleic anhydride grafted polyethylene.
A kind of preparation method of antimicrobial form polyvinyl piping materials, is as made from following steps：
1) by high-density polyethylene resin, crosslinking agent, antioxidant, compatilizer, ESCALOL 567 and anti-
Microbial inoculum is well mixed, and 15min is stirred in homogenizer, obtains just material；
2) Trimethoprim and modifying agent is added in just expecting, stirs 5min, material must be pre-processed；
3) pretreatment material is passed through into plunger-type extruder extrusion molding, obtains antimicrobial form polyvinyl piping materials.
Described, during extrusion molding：110 DEG C of feed zone temperature, 150 DEG C of temperature of connection, 260 DEG C of die temperature,
190 DEG C of heat conduction oil temperature, speed of production 1.5m/min.
Comparative example 1
A kind of antimicrobial form polyvinyl piping materials, it is as made from the raw material of following parts by weight：98 parts of high-density polyethylene resin,
0.5 part of crosslinking agent, 0.8 part of antioxidant, 0.3 part of compatilizer, 0.3 part of ESCALOL 567,0.2 part of antiseptic,
0.15 part of modifying agent.
Remaining is the same as embodiment 2.
Comparative example 2
A kind of antimicrobial form polyvinyl piping materials, it is as made from the raw material of following parts by weight：98 parts of high-density polyethylene resin,
0.5 part of crosslinking agent, 0.8 part of antioxidant, 0.3 part of compatilizer, 0.3 part of ESCALOL 567,0.2 part of antiseptic,
0.07 part of Trimethoprim.
Remaining is the same as embodiment 2.
Comparative example 3
A kind of antimicrobial form polyvinyl piping materials, it is as made from the raw material of following parts by weight：98 parts of high-density polyethylene resin,
0.5 part of crosslinking agent, 0.8 part of antioxidant, 0.3 part of compatilizer, 0.3 part of ESCALOL 567,0.2 part of antiseptic.
Remaining is the same as embodiment 2.
Mechanics Performance Testing
It is strong that antimicrobial form polyvinyl piping materials prepared by embodiment 1-3 and comparative example 1-3 carry out tensile strength, notch shock
Degree, heat resisting temperature are tested, as a result as shown in table 1.
The mechanical experimental results of table 1
Anti-microbial property test
Using film applicator coating, by " the antibacterium method for testing performance " in QB/T 2591-2003, to embodiment 1-3 and contrast
Antimicrobial form polyvinyl piping materials prepared by example 1-3 carry out anti-microbial property detection, contact the suppression after 24h with for examination bacterium with antibacterial pipeline
Bacterium rate investigates antibacterial effect.
Antibiotic rate calculation formula is：R=(B-C) * 100%.
In formula：R is antibiotic rate, and B is the average bacterial count recovered of blank control sample, and C is the average bacterial count recovered of experiment tubing.
For trying strain：Escherichia coli, hay bacillus and proteus, it is commercially available.
24h is cultivated under the conditions of 37 DEG C, according to 1.44cm2On the colony count that is grown calculate antibiotic rate, as a result such as table 2
It is shown.
The anti-microbial property test result of table 2
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair
The equivalent structure or equivalent flow conversion that bright description is made, or directly or indirectly it is used in other related technology necks
Domain, it is included within the scope of the present invention.
Claims (9)
1. a kind of antimicrobial form polyvinyl piping materials, it is characterised in that be as made from the raw material of following parts by weight：High density polyethylene (HDPE)
Resin 97-99 parts, crosslinking agent 0.1-1.0 parts, antioxidant 0.2-1.2 parts, compatilizer 0.1-0.5 parts, 2- hydroxyl -4- methoxyl groups two
Benzophenone 0.1-0.5 parts, antiseptic 0.1-0.3 parts, Trimethoprim 0.05-0.09 parts, modifying agent 0.1-0.2 parts.
2. antimicrobial form polyvinyl piping materials according to claim 1, it is characterised in that the antiseptic is by methylisothiozoline
Ketone and titanium dioxide are according to 0.2-0.4：Made from 1 weight ratio.
3. antimicrobial form polyvinyl piping materials according to claim 1, it is characterised in that the Trimethoprim is diethanol Dan Yi
Propanolamine cis-butenedioic anhydride compounds and ethylenediamine tetra-acetic acid are according to 1：Made from 0.5-0.7 weight ratio.
4. antimicrobial form polyvinyl piping materials according to claim 3, it is characterised in that the diethanol monoisopropanolamine maleic
Esterification compound is prepared by the following method to obtain：Diethanol monoisopropanolamine and maleic two are added in reactor
Acid anhydrides, adds catalyst, is decompressed to 0.4MPa under stirring condition, heats, and temperature control is at 100 DEG C, maintenance system constant temperature, every
One hour measure system acidity, to acid number without significant change when reaction stop；Room temperature is subsequently cooled to, uses saturation successively
Sodium carbonate liquor and distillation water washing, obtain diethanol monoisopropanolamine cis-butenedioic anhydride compounds.
5. antimicrobial form polyvinyl piping materials according to claim 1, it is characterised in that the modifying agent is made by following methods
's：Triethylene tetramine and hydrophily gas phase nano silica are dissolved in ethanol, are well mixed, is stood, is solidified, dries, obtains
Modifying agent.
6. antimicrobial form polyvinyl piping materials according to claim 5, it is characterised in that the triethylene tetramine and hydrophily gas phase
The weight ratio of nano silicon is 1：0.7-0.9.
7. antimicrobial form polyvinyl piping materials according to claim 1, it is characterised in that the crosslinking agent is tert-butyl hydroperoxide
Hydrogen, cumyl peroxide or benzoyl peroxide；The antioxidant is according to 1 by antioxidant 1010 and irgasfos 168：0.6-
Made from 0.8 weight ratio；The compatilizer is maleic anhydride inoculated polypropylene or maleic anhydride grafted polyethylene.
A kind of 8. preparation method of antimicrobial form polyvinyl piping materials any one of claim 1-7, it is characterised in that be by with
Made from lower step：
1) by high-density polyethylene resin, crosslinking agent, antioxidant, compatilizer, ESCALOL 567 and antiseptic
It is well mixed, 10-15min is stirred in homogenizer, obtains just material；
2) Trimethoprim and modifying agent is added in just expecting, stirs 5-10min, material must be pre-processed；
3) pretreatment material is passed through into plunger-type extruder extrusion molding, obtains antimicrobial form polyvinyl piping materials.
9. the preparation method of antimicrobial form polyvinyl piping materials according to claim 8, it is characterised in that the extrusion molding process
In：90-110 DEG C of feed zone temperature, connect 150-170 DEG C of temperature, 230-260 DEG C of die temperature, heat conduction oil temperature 190-205
DEG C, speed of production 1.0-1.5m/min.
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| CN108997151A (en) * | 2018-08-30 | 2018-12-14 | 济南大学 | The preparation method and products obtained therefrom of a kind of beta-unsaturated esters of alcohol-containing amine groups and application |
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| CN113136064A (en) * | 2021-04-07 | 2021-07-20 | 宏岳塑胶集团股份有限公司 | Bulk color peroxide crosslinked polyethylene pipe and preparation method thereof |
| CN115709555A (en) * | 2022-11-11 | 2023-02-24 | 宏岳塑胶集团股份有限公司 | Production process of crosslinked polyethylene PE-Xa (polyethylene-Xa) pipe and high-speed raw material mixer |
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