CN112375299A - Polypropylene PP flame-retardant anti-aging corrugated pipe and production process thereof - Google Patents
Polypropylene PP flame-retardant anti-aging corrugated pipe and production process thereof Download PDFInfo
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- CN112375299A CN112375299A CN202011285220.5A CN202011285220A CN112375299A CN 112375299 A CN112375299 A CN 112375299A CN 202011285220 A CN202011285220 A CN 202011285220A CN 112375299 A CN112375299 A CN 112375299A
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- 239000004743 Polypropylene Substances 0.000 title claims abstract description 135
- -1 Polypropylene Polymers 0.000 title claims abstract description 98
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 72
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 69
- 239000003063 flame retardant Substances 0.000 title claims abstract description 69
- 230000003712 anti-aging effect Effects 0.000 title claims abstract description 33
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 239000000203 mixture Substances 0.000 claims abstract description 43
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 31
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 31
- 229920001971 elastomer Polymers 0.000 claims abstract description 19
- 239000000806 elastomer Substances 0.000 claims abstract description 19
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims abstract description 14
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052794 bromium Inorganic materials 0.000 claims abstract description 14
- 239000002994 raw material Substances 0.000 claims abstract description 12
- 229940057995 liquid paraffin Drugs 0.000 claims abstract description 11
- 239000012745 toughening agent Substances 0.000 claims abstract description 10
- 239000011347 resin Substances 0.000 claims description 15
- 229920005989 resin Polymers 0.000 claims description 15
- 238000001125 extrusion Methods 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 10
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 6
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical group O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 claims description 6
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 claims description 5
- 229910000410 antimony oxide Inorganic materials 0.000 claims description 5
- 150000001621 bismuth Chemical class 0.000 claims description 5
- 229910000416 bismuth oxide Inorganic materials 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- TYIXMATWDRGMPF-UHFFFAOYSA-N dibismuth;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Bi+3].[Bi+3] TYIXMATWDRGMPF-UHFFFAOYSA-N 0.000 claims description 5
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical compound [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000005303 weighing Methods 0.000 claims description 5
- 102220040412 rs587778307 Human genes 0.000 claims description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 2
- 150000008301 phosphite esters Chemical class 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 230000032683 aging Effects 0.000 abstract description 3
- 230000006835 compression Effects 0.000 abstract description 3
- 238000007906 compression Methods 0.000 abstract description 3
- 230000002195 synergetic effect Effects 0.000 abstract description 3
- 239000012747 synergistic agent Substances 0.000 description 2
- YEYMIDQSOTUDMH-UHFFFAOYSA-N 1,3-didodecoxy-1,3-dioxopropane-2-sulfonic acid Chemical group CCCCCCCCCCCCOC(=O)C(C(=O)OCCCCCCCCCCCC)S(O)(=O)=O YEYMIDQSOTUDMH-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical group OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 description 1
- 229920006112 polar polymer Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
- C08K2003/2244—Oxides; Hydroxides of metals of zirconium
-
- 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
- C08K2003/2251—Oxides; Hydroxides of metals of chromium
-
- 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
- C08K3/2279—Oxides; Hydroxides of metals of antimony
- C08K2003/2282—Antimonates
-
- 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
- C08K3/38—Boron-containing compounds
- C08K2003/387—Borates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- 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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- 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
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a polypropylene PP flame-retardant anti-aging corrugated pipe which comprises the following raw materials in parts by weight: 80-120 parts of polypropylene mixture, 8-15 parts of polyethylene octene copolymer elastomer, 10-13 parts of bromine-containing flame retardant, 2-5 parts of antioxidant, 4-9 parts of flame retardant synergist, 3-6 parts of toughening agent, 1-3 parts of antioxidant and 1-3 parts of liquid paraffin. According to the invention, through the addition of the flame-retardant synergist, the raw material components have a good flame-retardant synergistic effect, the bromine-containing flame retardant has good dispersibility among the raw material components, and through the addition of the polyethylene octene copolymer elastomer, the polypropylene PP flame-retardant anti-aging corrugated pipe has excellent mechanical properties, and the strength of the corrugated pipe is improved; the polypropylene PP flame-retardant anti-aging corrugated pipe is simple in production process and low in production cost, and has excellent compression resistance, high strength, aging resistance and long service life.
Description
Technical Field
The invention relates to the technical field of corrugated pipes, in particular to a polypropylene PP flame-retardant anti-aging corrugated pipe and a production process thereof.
Background
The corrugated pipe is a tubular elastic sensitive element which is formed by connecting foldable corrugated sheets along the folding and stretching direction. The polypropylene is non-toxic, tasteless, low in density, superior in strength, rigidity, hardness and heat resistance to low-pressure polyethylene, and can be used at about 100 ℃. The polypropylene has non-polarity and crystallinity, so that the polypropylene has poor compatibility with polar polymers, inorganic fillers and reinforcing materials, poor adhesion and insufficient strength.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a polypropylene PP flame-retardant anti-aging corrugated pipe and a production process thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
the polypropylene PP flame-retardant anti-aging corrugated pipe comprises the following raw materials in parts by weight: 80-120 parts of polypropylene mixture, 8-15 parts of polyethylene octene copolymer elastomer, 10-13 parts of bromine-containing flame retardant, 2-5 parts of antioxidant, 4-9 parts of flame retardant synergist, 3-6 parts of toughening agent, 1-3 parts of antioxidant and 1-3 parts of liquid paraffin.
Preferably, the polypropylene mixture comprises polypropylene and polypropylene resin, the polypropylene resin is a mixture of homopolymerized PP and copolymerized PP, the copolymerized PP accounts for 80-92% of the total mass of the polypropylene resin, and the balance is the homopolymerized PP.
Preferably, the homopolymerized PP is T30S or 160E, and the copolymerized PP is K8303 or B8001.
Preferably, the flame retardant synergist is one or a mixture of antimony oxide, antimonate, bismuth oxide, bismuth salt or borate.
Preferably, the polyethylene octene copolymer elastomer is one of POE1880G, POE8150 or DF610 or a mixture thereof.
Preferably, the antioxidant is a thiomalonic acid bis-dodecyl ester, phosphite ester or thioesterification antioxidant, and the synergist is Cr2O3、TiO2Or ZrO2。
A production process of a polypropylene PP flame-retardant anti-aging corrugated pipe comprises the following steps:
s1: weighing a polypropylene mixture, a polyethylene octene copolymer elastomer, a bromine-containing flame retardant, an antioxidant, a flame retardant synergist, a toughening agent, an antioxidant and liquid paraffin according to parts by weight, adding the mixture into a high-speed mixer, and uniformly mixing to obtain a mixture;
s2: the mixture is sent into a double-screw extruder to be extruded, and the basic temperatures of three extrusion stages are respectively set as follows: the temperature is 210 ℃, 230 ℃, 250 ℃, the head temperature is 240 ℃ and 280 ℃, and the screw rotating speed is 150 ℃ and 350 r/min;
s3: and (3) performing melt blending, extrusion, fixing a mould and water cooling to obtain the polypropylene PP flame-retardant anti-aging corrugated pipe.
Compared with the prior art, the invention has the beneficial effects that: according to the polypropylene PP flame-retardant anti-aging corrugated pipe and the production process thereof, the flame-retardant synergistic effect is good among the raw material components through the addition of the flame-retardant synergistic agent, the bromine-containing flame retardant has good dispersibility among the raw material components, and the polypropylene PP flame-retardant anti-aging corrugated pipe has excellent mechanical properties and the strength of the corrugated pipe is improved through the addition of the polyethylene octene copolymer elastomer; the polypropylene PP flame-retardant anti-aging corrugated pipe is simple in production process and low in production cost, and has excellent compression resistance, high strength, aging resistance and long service life.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
The polypropylene PP flame-retardant anti-aging corrugated pipe comprises the following raw materials in parts by weight: 80 parts of polypropylene mixture, 8 parts of polyethylene octene copolymer elastomer, 10 parts of bromine-containing flame retardant, 2 parts of antioxidant, 4 parts of flame retardant synergist, 3 parts of flexibilizer, 1 part of antioxidant and 1 part of liquid paraffin.
Specifically, the polypropylene mixture comprises polypropylene and polypropylene resin, the polypropylene resin is a mixture of homopolymerized PP and copolymerized PP, the copolymerized PP accounts for 80% of the total mass of the polypropylene resin, and the balance is the homopolymerized PP.
Specifically, the homopolymerized PP is T30S, and the copolymerized PP is K8303.
Specifically, the flame-retardant synergist is one or a mixture of antimony oxide, antimonate, bismuth oxide, bismuth salt or borate.
Specifically, the polyethylene octene copolymer elastomer is POE 1880G.
Specifically, the antioxidant is sulfo-malonic acid bis-dodecyl ester, and the synergist is Cr2O3。
A production process of a polypropylene PP flame-retardant anti-aging corrugated pipe comprises the following steps:
s1: weighing a polypropylene mixture, a polyethylene octene copolymer elastomer, a bromine-containing flame retardant, an antioxidant, a flame retardant synergist, a toughening agent, an antioxidant and liquid paraffin according to parts by weight, adding the mixture into a high-speed mixer, and uniformly mixing to obtain a mixture;
s2: the mixture is sent into a double-screw extruder to be extruded, and the basic temperatures of three extrusion stages are respectively set as follows: 210 ℃, 230 ℃, 250 ℃, 260 ℃ of the head temperature and 150 revolutions per minute of the screw;
s3: and (3) performing melt blending, extrusion, fixing a mould and water cooling to obtain the polypropylene PP flame-retardant anti-aging corrugated pipe.
Example 2
The polypropylene PP flame-retardant anti-aging corrugated pipe comprises the following raw materials in parts by weight: 100 parts of polypropylene mixture, 12 parts of polyethylene octene copolymer elastomer, 11 parts of bromine-containing flame retardant, 4 parts of antioxidant, 6 parts of flame retardant synergist, 5 parts of toughening agent, 2 parts of antioxidant and 2 parts of liquid paraffin.
Specifically, the polypropylene mixture comprises polypropylene and polypropylene resin, the polypropylene resin is a mixture of homopolymerized PP and copolymerized PP, the copolymerized PP accounts for 85% of the total mass of the polypropylene resin, and the balance is the homopolymerized PP.
Specifically, the homopolymerized PP is 160E, and the copolymerized PP is B8001.
Specifically, the flame-retardant synergist is one or a mixture of antimony oxide, antimonate, bismuth oxide, bismuth salt or borate.
Specifically, the polyethylene octene copolymer elastomer is POE 8150.
Specifically, the antioxidant is phosphite antioxidant, and the synergist is TiO2。
A production process of a polypropylene PP flame-retardant anti-aging corrugated pipe comprises the following steps:
s1: weighing a polypropylene mixture, a polyethylene octene copolymer elastomer, a bromine-containing flame retardant, an antioxidant, a flame retardant synergist, a toughening agent, an antioxidant and liquid paraffin according to parts by weight, adding the mixture into a high-speed mixer, and uniformly mixing to obtain a mixture;
s2: the mixture is sent into a double-screw extruder to be extruded, and the basic temperatures of three extrusion stages are respectively set as follows: 210 ℃, 230 ℃, 250 ℃, the head temperature is 270 ℃, and the screw rotating speed is 250 revolutions per minute;
s3: and (3) performing melt blending, extrusion, fixing a mould and water cooling to obtain the polypropylene PP flame-retardant anti-aging corrugated pipe.
Example 3
The polypropylene PP flame-retardant anti-aging corrugated pipe comprises the following raw materials in parts by weight: 120 parts of polypropylene mixture, 15 parts of polyethylene octene copolymer elastomer, 13 parts of bromine-containing flame retardant, 5 parts of antioxidant, 9 parts of flame retardant synergist, 6 parts of toughening agent, 3 parts of antioxidant and 3 parts of liquid paraffin.
Specifically, the polypropylene mixture comprises polypropylene and polypropylene resin, the polypropylene resin is a mixture of homopolymerized PP and copolymerized PP, the copolymerized PP accounts for 92% of the total mass of the polypropylene resin, and the balance is the homopolymerized PP.
Specifically, the homopolymerized PP is T30S, and the copolymerized PP is B8001.
Specifically, the flame-retardant synergist is one or a mixture of antimony oxide, antimonate, bismuth oxide, bismuth salt or borate.
Specifically, the polyethylene octene copolymer elastomer is DF 610.
Specifically, the antioxidant is a thioesterification antioxidant, and the synergist is ZrO2。
A production process of a polypropylene PP flame-retardant anti-aging corrugated pipe comprises the following steps:
s1: weighing a polypropylene mixture, a polyethylene octene copolymer elastomer, a bromine-containing flame retardant, an antioxidant, a flame retardant synergist, a toughening agent, an antioxidant and liquid paraffin according to parts by weight, adding the mixture into a high-speed mixer, and uniformly mixing to obtain a mixture;
s2: the mixture is sent into a double-screw extruder to be extruded, and the basic temperatures of three extrusion stages are respectively set as follows: the temperature of the screw is 210 ℃, 230 ℃, 250 ℃, the temperature of the machine head is 280 ℃, and the rotating speed of the screw is 350 r/min;
s3: and (3) performing melt blending, extrusion, fixing a mould and water cooling to obtain the polypropylene PP flame-retardant anti-aging corrugated pipe.
According to the polypropylene PP flame-retardant anti-aging corrugated pipe and the production process thereof, the flame-retardant synergistic effect is good among the raw material components through the addition of the flame-retardant synergistic agent, the bromine-containing flame retardant has good dispersibility among the raw material components, and the polypropylene PP flame-retardant anti-aging corrugated pipe has excellent mechanical properties and the strength of the corrugated pipe is improved through the addition of the polyethylene octene copolymer elastomer; the polypropylene PP flame-retardant anti-aging corrugated pipe is simple in production process and low in production cost, and has excellent compression resistance, high strength, aging resistance and long service life.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. The polypropylene PP flame-retardant anti-aging corrugated pipe is characterized in that: the raw materials are as follows by weight: 80-120 parts of polypropylene mixture, 8-15 parts of polyethylene octene copolymer elastomer, 10-13 parts of bromine-containing flame retardant, 2-5 parts of antioxidant, 4-9 parts of flame retardant synergist, 3-6 parts of toughening agent, 1-3 parts of antioxidant and 1-3 parts of liquid paraffin.
2. The polypropylene PP flame-retardant anti-aging corrugated pipe as claimed in claim 1, wherein: the polypropylene mixture comprises polypropylene and polypropylene resin, the polypropylene resin is a mixture of homopolymerized PP and copolymerized PP, the copolymerized PP accounts for 80-92% of the total mass of the polypropylene resin, and the balance is the homopolymerized PP.
3. The polypropylene PP flame-retardant anti-aging corrugated pipe as claimed in claim 1, wherein: the homopolymerized PP is T30S or 160E, and the copolymerized PP is K8303 or B8001.
4. The polypropylene PP flame-retardant anti-aging corrugated pipe as claimed in claim 1, wherein: the flame-retardant synergist is one or a mixture of antimony oxide, antimonate, bismuth oxide, bismuth salt or borate.
5. The polypropylene PP flame-retardant anti-aging corrugated pipe as claimed in claim 1, wherein: the polyethylene octene copolymer elastomer is one or a mixture of POE1880G, POE8150 or DF 610.
6. The polypropylene PP flame-retardant anti-aging corrugated pipe as claimed in claim 1, wherein: the antioxidant is a thiomalonic acid di-dodecyl ester, phosphite ester or thioesterification antioxidant, and the synergist is Cr2O3、TiO2Or ZrO2。
7. The production process of the polypropylene PP flame-retardant anti-aging corrugated pipe as claimed in claim 1, is characterized in that: the method comprises the following steps:
s1: weighing a polypropylene mixture, a polyethylene octene copolymer elastomer, a bromine-containing flame retardant, an antioxidant, a flame retardant synergist, a toughening agent, an antioxidant and liquid paraffin according to parts by weight, adding the mixture into a high-speed mixer, and uniformly mixing to obtain a mixture;
s2: the mixture is sent into a double-screw extruder to be extruded, and the basic temperatures of three extrusion stages are respectively set as follows: the temperature is 210 ℃, 230 ℃, 250 ℃, the head temperature is 240 ℃ and 280 ℃, and the screw rotating speed is 150 ℃ and 350 r/min;
s3: and (3) performing melt blending, extrusion, fixing a mould and water cooling to obtain the polypropylene PP flame-retardant anti-aging corrugated pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011285220.5A CN112375299A (en) | 2020-11-17 | 2020-11-17 | Polypropylene PP flame-retardant anti-aging corrugated pipe and production process thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011285220.5A CN112375299A (en) | 2020-11-17 | 2020-11-17 | Polypropylene PP flame-retardant anti-aging corrugated pipe and production process thereof |
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| CN112375299A true CN112375299A (en) | 2021-02-19 |
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2020
- 2020-11-17 CN CN202011285220.5A patent/CN112375299A/en active Pending
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| CN104744814A (en) * | 2015-02-06 | 2015-07-01 | 洛阳师范学院 | Automotive toughened polypropylene corrugated pipe and preparation method thereof |
| CN105017644A (en) * | 2015-07-14 | 2015-11-04 | 洛阳师范学院 | Halogen-free flame retardant automobile bellows with low VOC emission and manufacturing process thereof |
| CN105017643A (en) * | 2015-07-14 | 2015-11-04 | 洛阳师范学院 | Low-VOC-emission automotive corrugated pipe and manufacturing process thereof |
| CN108929513A (en) * | 2017-05-25 | 2018-12-04 | 合肥杰事杰新材料股份有限公司 | A kind of motor bellows flame-proof anti-aging polypropylene material and preparation method thereof |
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