CN107778691A - PVC silencing drainage pipes and its production method - Google Patents
PVC silencing drainage pipes and its production method Download PDFInfo
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- CN107778691A CN107778691A CN201610748248.5A CN201610748248A CN107778691A CN 107778691 A CN107778691 A CN 107778691A CN 201610748248 A CN201610748248 A CN 201610748248A CN 107778691 A CN107778691 A CN 107778691A
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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
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92514—Pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/22—Tubes or pipes, i.e. rigid
-
- 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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The present invention relates to a kind of PVC silencing drainage pipes and its production method, it is characterised in that includes the raw material of following parts by weight：Wherein, 100 130 parts of 80 100 part, nanometer dead plaster of Corvic, 58 parts of stabilizer, 25 parts of modifying agent, 0.5 2.0 parts of PE waxes, 0.5 2 parts of aluminate coupling agent, 0.2 0.5 parts of composite antioxidant.Raw material of the present invention is simple and easy to get, cost is cheap, and with good ageing resistance, pliability, low temperature resistant, high temperature resistant, addition MMB methyl methacrylate butadiene styrol copolymer can play sound deadening, improve low-temperature flexibility, shock resistance, and have shock-absorbing functions.
Description
Technical field
The invention belongs to the manufacture field of PVC drain pipe, more particularly to a kind of PVC silencing drainage pipes and its producer
Method.
Background technology
Plastic pipe is the chemical building material that high-tech is combined, and chemical building material be after steel, timber, cement,
Contemporary emerging the fourth-largest class New Building Materials.Chemical building material achieves rapid progress fast development in China, especially newly
Type ring protects widely using for plastic pipe, has started the revolution that a sound substitutes traditional construction material.Plastic pipe is because with current loss
The advantages that small, energy-conservation, section material, protecting ecology, convenient completion, it is widely used in building water supply and drainage, cities and towns plumbing and combustion gas
The fields such as pipe, turn into the main force of new century urban construction pipe network.
Plastics and traditional material are different, and the paces of technological progress are faster, the new technology that constantly occurs, new material, new
Technique makes the advantage of the relatively conventional material of plastic tube more and more prominent.Plastic pipe has weight compared with traditional metal tube
Gently, the 1/6-1/10 of metal tube is typically only, there is preferable corrosion resistance, shock resistance and tensile strength, plastics pipe internal surface ratio
Cast iron pipe it is smooth it is more, coefficient of friction is small, fluid resistance is small, can reduce water delivery energy consumption more than 5%, synthesis energy saving is good, manufacture energy
Right reduction by 75% is consumed, convenient transportation, installation is simple, and service life is up to 30-50.Plastic pipe develops very in countries in the world
It hurry up, developed country has accounted for absolute advantage plastic pipe in feedwater field and gas burning field application and has not only largely been used for replacing tradition
Steel pipe, cast iron pipe etc., reason is that technological innovation.One side material has great progress.Another aspect application technology has
New development, traditional piping material is set to be adapted to occasion in this way not have competitiveness at all.It is also many new materials, new
Technology is studied, or found out try out examine to, can affirm, the technological progress of 10 years plastic tubes from now on will promote
Plastic tube is set more quickly to develop.
In existing structure, drainage system is essential auxiliary facility, and common drainage pipeline mostly structure is simple
List, erasure effect are poor, and when there is current to move quickly through, current hit pipe wall, extruding air easily produces continuous noise, cause
The living environment of people is polluted, the noise of drainage system directly affects the living environment of resident.Drainpipe for building, past are most
Using cast iron pipe.Since reform and opening-up, the housing construction high speed development in China, the production of cast iron pipe much can not meet demand,
For this, the Ministry of Construction advocates promote the use of plastic drain-pipe energetically.Because plastic tube cost is low, easy processing is light, is easy to construct, mesh
Preceding cast iron pipe is eliminated substantially.The greatest drawback of plastic drain-pipe is that noise is big, particularly with skyscraper, has a strong impact on residence
People's normal life and rest.Disturbed residents problem to solve noise, professional has thought thousand and one way：Such as successively develop sandwich layer
Foaming tube, spiral inner wall pipe etc., the appearance of these new products, although can reduce to a certain extent noise (can reduce by 2~
3dB), the level of cast iron pipe but is not reached much, and cost and intensity also can not show a candle to real wall plastics and runs well.
The noise of drainpipe is by pneumatic sound transmission and admittedly dynamic sound transmission combines.Air, water are full of in drainage pipeline
When discharging from top to bottom, the existing sound wave transmission using air as medium, have again and made because water hits with solid sundries flowing to tube wall
Formed noise is shaken into pipe.Therefore the noise in plastic drainage pipeline is reduced, requires the material energy of plastic tube first
Absorb using air as the sound wave of medium and reduce because water and solid sundries flowing hit noise caused by tube wall vibrations.Cast iron pipe
Why noise is small, is due to that the density of cast iron is big, and tube wall vibrations are difficult, and caused noise is also just small, while density is big, every
Audio fruit is good, that is, absorbs sound wave efficiency high.
Therefore, it is the main task of those skilled in the art at this stage to develop a kind of PVC drain pipe that can reduce noise
One of.
The content of the invention
It is an object of the invention to provide a kind of raw material is simple and easy to get, cost is cheap, during use, noise is low, toughness is high, elongation
Rate is big, low temperature resistant good toughness, and PVC silencing drainage pipes and its production method with good ageing resistance.
What the present invention was realized in：
A kind of PVC silencing drainage pipes, it is characterised in that include the raw material of following parts by weight：Wherein, Corvic
80-100 parts, nanometer dead plaster 100-130 parts, stabilizer 5-8 parts, modifying agent 2-5 parts, PE wax 0.5-2.0 parts, Aluminate
Coupling agent 0.5-2 parts, composite antioxidant 0.2-0.5 parts.
The function of above raw material is respectively：
Using nanometer dead plaster as filler, cost can be greatly reduced, softening temperature and hardness is improved, carries
High tube extrusion stability and dimensional stability, reduce and shrink, also with certain sound absorption.
Stabilizer is polyvinyl chloride indispensable additive in process, and there is the plasticizing for promoting PVC raw materials to make
With, while also have the effect for strengthening stability.
Modifying agent MBS can improve PVC with polyvinyl chloride resin blending
Low-temperature flexibility, improve shock resistance, and with shock-absorbing, sound deadening.
PE waxes have excellent cold resistance, heat resistance, chemical resistance and wearability and are widely used.PE waxes have
The very long non-polar carbon chains of very strong polar centers.Part in its structure with plastic compatible in polarity lubricates work in rising
With outer lubrication and the demoulding are played in the part incompatible with plastics in polarity.PE waxes have as in-lubricant and polymer
Good compatibility, its cohesive force between polymeric inner plays a part of reduction polymer molecule, so as to improve plastic melt
Interior frictional heat and melt mobility.PE waxes mainly improve polymer melt as the effect of external lubricant and set with processing
The friction of standby hot metal surface, it is poor with polymer compatibility, easily toward external migration out of melt, so can be melted in plastics
The interface of body and metal forms the thin layer of lubrication.
Aluminate coupling agent can improve the compatibility and adhesion of inorganic filler and organic polymer, anti-settling so as to produce
Effect, it can also improve adhesive strength.
Using Hinered phenols antioxidant and the composite antioxidant of phosphite antioxidant, primary antioxidant and auxiliary antioxidant
And the used time, respective characteristic has been played, it is better than a kind of effect is used alone.Because using a kind of high concentration antioxidant, pair can be caused
Reaction；When taking several low concentration antioxidant, can both avoid side reaction, can also play plus and benefit.
Further preferably, the preparation method of the nanometer dead plaster is：By calcium sulphate dihydrate and water according to 5-10:
90-95 ratio is made into slurry, and slurry pH is 9.5-10.2, is then placed in closed reactor and is stirred continuously, is in temperature
Reaction synthesis calcium sulfate crystal whiskers under conditions of 105-125 DEG C, then calcium sulfate crystal whiskers are produced into nanometer nothing by being dehydrated, after drying
H 2 O calcium sulphate.
Further preferably, the nanometer dead plaster is a diameter of 50-100nm dead plaster threadiness monocrystalline
Body.
Further preferably, it is stable to include epoxidized soybean oil, organotin, calcium stearate and barium zinc for the composition of the stabilizer
Agent；Epoxidized soybean oil, organotin, calcium stearate, the mass ratio of barium zinc stabilizer are 2-3:2:3-4:1.
Further preferably, the modifying agent is MBS.
Further preferably, the composition of the composite antioxidant includes Hinered phenols antioxidant and phosphite antioxidant,
The mass ratio of Hinered phenols antioxidant and phosphite antioxidant is 7-9:1-3.
The production method of PVC silencing drainage pipes of the present invention, comprises the following steps：
S1, raw material mixing：Corvic, nanometer dead plaster, stabilizer, modifying agent, PE waxes, Aluminate is even
After joining agent and composite antioxidant according to weight, nanometer dead plaster is first put into the stirring of high mixer high speed, temperature
After degree reaches 100 DEG C to 120 DEG C, add aluminate coupling agent and mix 5 to 10 minutes；Again by Corvic, stably
Agent, modifying agent, PE waxes and composite antioxidant are put into high mixer high speed and are stirred, and the temperature of mixing is 120-140 DEG C, is stirred
Mix after 15-30min that mixed material is cooled into 40-55 DEG C of rewinding is stand-by；
S2, granulation：The material mixed is sent into comminutor and is granulated, the temperature control of feed cylinder of granulator is in 175-
200 DEG C, obtain pellet；
S3, tubulation：It is put into after pellet is cooled down in barrel, the temperature for controlling barrel is 170-220 DEG C, and extrusion pressure is
35-50MPa, then material by extruder die orifice extrude PVC silencing drainage pipes, and through vacuum sizing, be cooled to
After type, finished product.
The prominent substantive distinguishing features of the present invention and significant progress are：
1st, PVC silencing drainage pipes of the present invention have excellent chemical stability and to inorganic acid, alkali, salt it is corrosion-resistant
Property.Additive is added in process of production, and can improve the anti-impact force and anti-uv-ray of PVC drain pipe material, enhancing production
The toughness and intensity of product；And there is the advantages of production cost is low and production is stable；Easily cutting, welding, bonding, it is easy to operate,
Installation efficiency is high.
2nd, the present invention has certain sound absorption using nanometer dead plaster as filler, raw material is simple and easy to get,
Cost is cheap, and increases fracture toughness with good ageing resistance, pliability, low temperature resistant, high temperature resistant, rapid crack
By force；Addition MBS can play sound deadening, improve low-temperature flexibility, shock resistance
Performance, and there are shock-absorbing functions.
Embodiment
The present invention is made the following instructions with reference to embodiment.
Embodiment 1
S1, raw material mixing：By 100 parts of 80 part, nanometer dead plaster of Corvic, 5 parts of stabilizer, modifying agent 2
After part, 0.5 part of PE waxes, 0.5 part of aluminate coupling agent and 0.2 part of composite antioxidant are according to weight, first by nanometer nothing
H 2 O calcium sulphate is put into the stirring of high mixer high speed, after temperature reaches 100 DEG C to 120 DEG C, adds aluminate coupling agent and mixes 5
To 10 minutes；Corvic, stabilizer, modifying agent, PE waxes and composite antioxidant are put into high mixer high speed again to stir
Mixing is mixed, the temperature of mixing is 120-140 DEG C, and it is stand-by that mixed material is cooled to 40-55 DEG C of rewinding by stirring 15-30min afterwards；
S2, granulation：The material mixed is sent into comminutor and is granulated, the temperature control of feed cylinder of granulator is in 175-
200 DEG C, obtain pellet；
S3, tubulation：It is put into after pellet is cooled down in barrel, the temperature for controlling barrel is 170-220 DEG C, and extrusion pressure is
35MPa, then material extrudes PVC silencing drainage pipes by extruder die orifice, and after vacuum sizing, cooling and shaping, is made into
Product.
Embodiment 2
S1, raw material mixing：By 110 parts of 90 part, nanometer dead plaster of Corvic, 6 parts of stabilizer, modifying agent 3
After part, 1.0 parts of PE waxes, 1.0 parts of aluminate coupling agent and 0.3 part of composite antioxidant are according to weight, first by nanometer nothing
H 2 O calcium sulphate is put into the stirring of high mixer high speed, after temperature reaches 100 DEG C to 120 DEG C, adds aluminate coupling agent and mixes 5
To 10 minutes；Corvic, stabilizer, modifying agent, PE waxes and composite antioxidant are put into high mixer high speed again to stir
Mixing is mixed, the temperature of mixing is 120-140 DEG C, and it is stand-by that mixed material is cooled to 40-55 DEG C of rewinding by stirring 15-30min afterwards；
S2, granulation：The material mixed is sent into comminutor and is granulated, the temperature control of feed cylinder of granulator is in 175-
200 DEG C, obtain pellet；
S3, tubulation：It is put into after pellet is cooled down in barrel, the temperature for controlling barrel is 170-220 DEG C, and extrusion pressure is
40MPa, then material extrudes PVC silencing drainage pipes by extruder die orifice, and after vacuum sizing, cooling and shaping, is made into
Product.
Embodiment 3
S1, raw material mixing：By 120 parts of 95 part, nanometer dead plaster of Corvic, 7 parts of stabilizer, modifying agent 4
After part, 1.5 parts of PE waxes, 1.5 parts of aluminate coupling agent and 0.4 part of composite antioxidant are according to weight, first by nanometer nothing
H 2 O calcium sulphate is put into the stirring of high mixer high speed, after temperature reaches 100 DEG C to 120 DEG C, adds aluminate coupling agent and mixes 5
To 10 minutes；Corvic, stabilizer, modifying agent, PE waxes and composite antioxidant are put into high mixer high speed again to stir
Mixing is mixed, the temperature of mixing is 120-140 DEG C, and it is stand-by that mixed material is cooled to 40-55 DEG C of rewinding by stirring 15-30min afterwards；
S2, granulation：The material mixed is sent into comminutor and is granulated, the temperature control of feed cylinder of granulator is in 175-
200 DEG C, obtain pellet；
S3, tubulation：It is put into after pellet is cooled down in barrel, the temperature for controlling barrel is 170-220 DEG C, and extrusion pressure is
50MPa, then material extrudes PVC silencing drainage pipes by extruder die orifice, and after vacuum sizing, cooling and shaping, is made into
Product.
Embodiment 4
S1, raw material mixing：By 130 parts of 100 part, nanometer dead plaster of Corvic, 8 parts of stabilizer, modifying agent 5
It is first that nanometer is anhydrous after part, 2.0 parts of PE waxes, 2 parts of aluminate coupling agent and 0.5 part of composite antioxidant are according to weight
Calcium sulfate be put into high mixer high speed stirring, after temperature reaches 100 DEG C to 120 DEG C, add aluminate coupling agent mix 5 to
10 minutes；Corvic, stabilizer, modifying agent, PE waxes and composite antioxidant are put into the stirring of high mixer high speed again
Mixing, the temperature of mixing is 120-140 DEG C, and it is stand-by that mixed material is cooled to 40-55 DEG C of rewinding by stirring 15-30min afterwards；
S2, granulation：The material mixed is sent into comminutor and is granulated, the temperature control of feed cylinder of granulator is in 175-
200 DEG C, obtain pellet；
S3, tubulation：It is put into after pellet is cooled down in barrel, the temperature for controlling barrel is 170-220 DEG C, and extrusion pressure is
45MPa, then material extrudes PVC silencing drainage pipes by extruder die orifice, and after vacuum sizing, cooling and shaping, is made into
Product.
Sample of embodiment of the present invention pipe after testing, show that technical indicator is：
| Performance indications | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| Tensile strength/MPa | 55 | 56 | 58 | 61 |
| Longitudinal welds/% | 2 | 3 | 3 | 2 |
| Elongation at break/% | 147 | 151 | 148 | 155 |
| Vicat softening temperature/DEG C | 92 | 95 | 93 | 98 |
| Noise/dB | 42 | 41 | 41 | 40 |
As seen from the above table, PVC silencing drainage pipes of the present invention have low noise, high tenacity, while have higher stretching strong
Degree and longitudinal welds, have preferable mechanical strength, can apply to various occasion drainage pipelines.
Claims (7)
1. a kind of PVC silencing drainage pipes, it is characterised in that include the raw material of following parts by weight：Wherein, Corvic
80-100 parts, nanometer dead plaster 100-130 parts, stabilizer 5-8 parts, modifying agent 2-5 parts, PE wax 0.5-2.0 parts, Aluminate
Coupling agent 0.5-2 parts, composite antioxidant 0.2-0.5 parts.
2. PVC silencing drainage pipes according to claim 1, it is characterised in that：The preparation side of the nanometer dead plaster
Method is：By calcium sulphate dihydrate and water according to 5-10:90-95 ratio is made into slurry, and slurry pH is 9.5-10.2, is then placed in close
It is stirred continuously in the reactor closed, reaction synthesis calcium sulfate crystal whiskers under conditions of being 105-125 DEG C in temperature, then calcium sulfate is brilliant
A nanometer dead plaster must be produced by being dehydrated, after drying.
3. PVC silencing drainage pipes according to claim 1, it is characterised in that：The nanometer dead plaster is a diameter of
50-100nm dead plaster threadiness monocrystal.
4. PVC silencing drainage pipes according to claim 1, it is characterised in that：It is big that the composition of the stabilizer includes epoxy
Soya-bean oil, organotin, calcium stearate and barium zinc stabilizer；Epoxidized soybean oil, organotin, calcium stearate, the quality of barium zinc stabilizer
Than for 2-3:2:3-4:1.
5. PVC silencing drainage pipes according to claim 1, it is characterised in that：The modifying agent be methyl methacrylate-
BS.
6. PVC silencing drainage pipes according to claim 1, it is characterised in that：The composition of the composite antioxidant includes
The mass ratio of Hinered phenols antioxidant and phosphite antioxidant, Hinered phenols antioxidant and phosphite antioxidant is 7-9:1-
3。
7. the production method of PVC silencing drainage pipes as claimed in claim 1, it is characterised in that：Comprise the following steps：
S1, raw material mixing：By Corvic, nanometer dead plaster, stabilizer, modifying agent, PE waxes, aluminate coupling agent
With composite antioxidant according to weight after, nanometer dead plaster is first put into the stirring of high mixer high speed, temperature reaches
To after 100 DEG C to 120 DEG C, add aluminate coupling agent and mix 5 to 10 minutes；Again by Corvic, stabilizer, change
Property agent, PE waxes and composite antioxidant be put into high mixer high speed and be stirred, the temperature of mixing is 120-140 DEG C, stirs 15-
It is stand-by that mixed material is cooled to 40-55 DEG C of rewinding by 30min afterwards；
S2, granulation：The material mixed is sent into comminutor and is granulated, the temperature control of feed cylinder of granulator is in 175-200
DEG C, obtain pellet；
S3, tubulation：It is put into after pellet is cooled down in barrel, the temperature for controlling barrel is 170-220 DEG C, extrusion pressure 35-
50MPa, then material extrudes PVC silencing drainage pipes by extruder die orifice, and after vacuum sizing, cooling and shaping, is made into
Product.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610748248.5A CN107778691A (en) | 2016-08-29 | 2016-08-29 | PVC silencing drainage pipes and its production method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610748248.5A CN107778691A (en) | 2016-08-29 | 2016-08-29 | PVC silencing drainage pipes and its production method |
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| CN107778691A true CN107778691A (en) | 2018-03-09 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108727743A (en) * | 2018-06-29 | 2018-11-02 | 广西金盛科技发展有限公司 | PVC-U noise elimination drainpipes |
| CN110951171A (en) * | 2019-12-09 | 2020-04-03 | 河南亿博科技股份有限公司 | Heat-resistant steam rubber hose core removing method and core |
| CN111793298A (en) * | 2020-06-10 | 2020-10-20 | 安徽博泰塑业科技有限公司 | Silencing inclined tee pipe and preparation method thereof |
| CN115449167A (en) * | 2022-10-12 | 2022-12-09 | 安徽蓝通科技股份有限公司 | Processing technology of polyvinyl chloride mute drain pipe |
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