CN113896986A - Modified MPP cable protection pipe - Google Patents

Modified MPP cable protection pipe Download PDF

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Publication number
CN113896986A
CN113896986A CN202111332016.9A CN202111332016A CN113896986A CN 113896986 A CN113896986 A CN 113896986A CN 202111332016 A CN202111332016 A CN 202111332016A CN 113896986 A CN113896986 A CN 113896986A
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parts
cable protection
fly ash
antioxidant
coupling agent
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CN202111332016.9A
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Chinese (zh)
Inventor
方明堂
张美龙
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Zhejiang Minghui Electric Power Equipment Co ltd
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Zhejiang Minghui Electric Power Equipment Co ltd
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Priority to CN202111332016.9A priority Critical patent/CN113896986A/en
Publication of CN113896986A publication Critical patent/CN113896986A/en
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions 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
    • C08L23/10Homopolymers or copolymers of propene
    • C08L23/12Polypropene
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions 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
    • C08L23/04Homopolymers or copolymers of ethene
    • C08L23/06Polyethene
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/02Flame or fire retardant/resistant
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/08Stabilised against heat, light or radiation or oxydation
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00Applications
    • C08L2203/18Applications used for pipes
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00Applications
    • C08L2203/20Applications use in electrical or conductive gadgets
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/08Polymer mixtures characterised by other features containing additives to improve the compatibility between two polymers
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2207/00Properties characterising the ingredient of the composition
    • C08L2207/06Properties of polyethylene
    • C08L2207/062HDPE

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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)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The invention relates to the technical field of cable protection pipes, in particular to a modified MPP cable protection pipe which comprises polypropylene, a color ribbon ingredient, high-density polyethylene, fly ash, a lubricating impact modifier, a toughening agent, a coupling agent, a flame retardant, an antioxidant and a compatilizer, wherein the modified MPP cable protection pipe comprises the following components in parts by mass: 100-200 parts of polypropylene, 5-15 parts of color band ingredients, 100-130 parts of high-density polyethylene, 30-40 parts of fly ash, 10-20 parts of lubricating type impact modifier, 10-20 parts of toughening agent, 70-120 parts of coupling agent, 10-30 parts of flame retardant, 30-40 parts of antioxidant and 20-40 parts of compatilizer.

Description

Modified MPP cable protection pipe
Technical Field
The invention relates to the technical field of cable protection pipes, in particular to a modified MPP cable protection pipe.
Background
The common cable protection tube in the market at present has two kinds of MPP pipe and CPVC pipe. The MPP pipe is divided into an excavation type pipe and a non-excavation type pipe, and the MPP non-excavation pipe is also called as an MPP jacking pipe or a dragging pipe. The MPP pipe is a plastic pipe prepared by adopting modified polypropylene as a main raw material, is one of the most conventional electric power pipes mainly applied to the market at present, but has more and more prominent defects along with the gradual expansion of the application field and the environment, and cannot completely adapt to the environment with high requirements in the aspects of comprehensive properties such as strength, flame retardance and the like, so that the modified MPP cable protection pipe is provided.
Disclosure of Invention
The invention aims to provide a modified MPP cable protection tube to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a modified MPP cable protection tube comprises polypropylene, ribbon ingredients, high-density polyethylene, fly ash, a lubricating impact modifier, a toughening agent, a coupling agent, a flame retardant, an antioxidant and a compatilizer, and the modified MPP cable protection tube comprises the following components in parts by mass: 100-200 parts of polypropylene, 5-15 parts of color band ingredients, 100-130 parts of high-density polyethylene, 30-40 parts of fly ash, 10-20 parts of lubricating type impact modifier, 10-20 parts of toughening agent, 70-120 parts of coupling agent, 10-30 parts of flame retardant, 30-40 parts of antioxidant and 20-40 parts of compatilizer.
As a preferable scheme of the invention, the coupling agent is a phenolic resin silane coupling agent, and the compatilizer is maleic anhydride grafted polyethylene PE-g-MAH.
As a preferable scheme of the invention, the toughening agent is one or a mixture of POE, TPE and EPDM, and the flame retardant is tributyl phosphate, tri (2-ethylhexyl) phosphate and toluene-diphenyl phosphate.
In a preferred embodiment of the present invention, the antioxidant is pentaerythritol tetrakis [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ].
As a preferable scheme of the invention, the lubricating impact modifier is one of methyl methacrylate-butadiene-styrene (MBS) and Chlorinated Polyethylene (CPE) or a mixture thereof.
A modified MPP cable protection tube comprises the following manufacturing process steps:
s1, selecting according to the mass parts: 100-200 parts of polypropylene, 5-15 parts of color band ingredients, 100-130 parts of high-density polyethylene, 30-40 parts of fly ash, 10-20 parts of lubricating type impact modifier, 10-20 parts of toughening agent, 70-120 parts of coupling agent, 10-30 parts of flame retardant, 30-40 parts of antioxidant and 20-40 parts of compatilizer.
S2, naturally drying the fly ash, grinding the fly ash by a KNM type quick grinder for use, adding polypropylene, high-density polyethylene, fly ash and a lubricating type impact modifier into a reaction kettle, heating and stirring the mixture for modification, and then sequentially adding a toughening agent, a coupling agent, a flame retardant, an antioxidant and a compatilizer into the reaction kettle for full stirring to obtain a composite material;
and S3, heating, blending and extruding the composite material and the color ribbon ingredients by a screw extruder, shaping by a die orifice, sizing in vacuum, and cooling and shaping by spraying.
As a preferable scheme of the invention, the modification treatment working temperature of the S2 reaction kettle is 100-150 ℃, the low-speed stirring is carried out for 30-50 min, and the toughening agent, the coupling agent, the flame retardant, the antioxidant and the compatilizer are added and then the reaction kettle is continuously stirred for 30-40 min.
As a preferable scheme of the invention, the head temperature of the S2 screw extruder is 250-260 ℃, the temperature of the screw cylinder is 230-240 ℃, and the rotating speed of the screw is 300-400 r/min.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the interface performance of a binary system of high-density polyethylene/inorganic fiber is improved by taking maleic anhydride grafted polyethylene PE-g-MAH as a compatilizer, the fly ash has the advantages of light particle weight, high mechanical property, more active groups, excellent electrical property and the like, the integral impact strength can be greatly improved by the high-density polyethylene, the flexibilizer, the coupling agent and the compatilizer, meanwhile, the tensile strength and the bending strength are also greatly improved, the integral use quality and the integral use effect are improved, the flame retardance and the oxidation resistance of the protection tube can be better by the arranged flame retardant and the antioxidant, and the integral use safety is improved.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without any creative work based on the embodiments of the present invention belong to the protection scope of the present invention.
The invention provides a technical scheme that:
a modified MPP cable protection tube comprises polypropylene, ribbon ingredients, high-density polyethylene, fly ash, a lubricating impact modifier, a toughening agent, a coupling agent, a flame retardant, an antioxidant and a compatilizer, and the modified MPP cable protection tube comprises the following components in parts by mass: 100-200 parts of polypropylene, 5-15 parts of color band ingredients, 100-130 parts of high-density polyethylene, 30-40 parts of fly ash, 10-20 parts of lubricating type impact modifier, 10-20 parts of toughening agent, 70-120 parts of coupling agent, 10-30 parts of flame retardant, 30-40 parts of antioxidant and 20-40 parts of compatilizer.
The coupling agent is phenolic resin silane coupling agent, and the compatilizer is maleic anhydride grafted polyethylene PE-g-MAH.
The toughening agent is one or a mixture of POE, TPE and EPDM, and the flame retardant is tributyl phosphate, tri (2-ethylhexyl) phosphate and toluene-diphenyl phosphate.
The antioxidant is selected from tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester.
The lubricating impact modifier is one or a mixture of methyl methacrylate-butadiene-styrene (MBS) and Chlorinated Polyethylene (CPE).
A modified MPP cable protection tube comprises the following manufacturing process steps:
s1, selecting according to the mass parts: 100-200 parts of polypropylene, 5-15 parts of color band ingredients, 100-130 parts of high-density polyethylene, 30-40 parts of fly ash, 10-20 parts of lubricating type impact modifier, 10-20 parts of toughening agent, 70-120 parts of coupling agent, 10-30 parts of flame retardant, 30-40 parts of antioxidant and 20-40 parts of compatilizer.
S2, naturally drying the fly ash, grinding the fly ash by a KNM type quick grinder for use, adding polypropylene, high-density polyethylene, fly ash and a lubricating type impact modifier into a reaction kettle, heating and stirring the mixture for modification, and then sequentially adding a toughening agent, a coupling agent, a flame retardant, an antioxidant and a compatilizer into the reaction kettle for full stirring to obtain a composite material;
and S3, heating, blending and extruding the composite material and the color ribbon ingredients by a screw extruder, shaping by a die orifice, sizing in vacuum, and cooling and shaping by spraying.
And (3) stirring the modified treatment in the S2 reaction kettle at a low speed for 30-50 min at the working temperature of 100-150 ℃, adding the toughening agent, the coupling agent, the flame retardant, the antioxidant and the compatilizer, and then continuously stirring the reaction kettle for 30-40 min.
S2 the head temperature of the screw extruder is 250-260 ℃, the barrel temperature is 230-240 ℃, and the screw rotation speed is 300-400 r/min.
Example 1: selecting the following components in parts by mass: 100 parts of polypropylene, 5 parts of ribbon ingredients, 100 parts of high-density polyethylene, 30 parts of fly ash, 10 parts of lubricating type impact modifier, 10 parts of toughening agent, 70 parts of coupling agent, 10 parts of flame retardant, 30 parts of antioxidant and 20 parts of compatilizer, naturally air-drying the fly ash, grinding the fly ash by a KNM type quick grinder, adding the polypropylene, the high-density polyethylene, the fly ash and the lubricating type impact modifier into a reaction kettle, heating and stirring the mixture for modification treatment, stirring the mixture at a low speed of 100-150 ℃ for 30-50 min, then sequentially adding the toughening agent, the coupling agent, the flame retardant, the antioxidant and the compatilizer into the reaction kettle, fully stirring the mixture for 30-40 min to obtain a composite material, heating and blending the composite material and the ribbon ingredients by a screw extruder, extruding the head temperature of the screw extruder to 250-260 ℃, the temperature of a screw cylinder to 230-240 ℃, and rotating the screw at a speed of 300-400 r/min, and performing die orifice sizing, vacuum sizing and spray cooling sizing.
Example 2: selecting the following components in parts by mass: 150 parts of polypropylene, 10 parts of ribbon ingredients, 120 parts of high-density polyethylene, 35 parts of fly ash, 15 parts of lubricating type impact modifier, 15 parts of toughening agent, 90 parts of coupling agent, 20 parts of flame retardant, 35 parts of antioxidant and 30 parts of compatilizer, naturally air-drying the fly ash, grinding the fly ash by a KNM type quick grinder, adding the polypropylene, the high-density polyethylene, the fly ash and the lubricating type impact modifier into a reaction kettle, heating and stirring the mixture for modification treatment, stirring the mixture at a low speed of 100-150 ℃ for 30-50 min, then sequentially adding the toughening agent, the coupling agent, the flame retardant, the antioxidant and the compatilizer into the reaction kettle, fully stirring the mixture for 30-40 min to obtain a composite material, heating and blending the composite material and the ribbon ingredients by a screw extruder, extruding the head temperature of the screw extruder to 250-260 ℃, the temperature of a screw cylinder to 230-240 ℃, and rotating the screw at a speed of 300-400 r/min, and performing die orifice sizing, vacuum sizing and spray cooling sizing.
Example 3: selecting the following components in parts by mass: 200 parts of polypropylene, 15 parts of ribbon ingredients, 130 parts of high-density polyethylene, 40 parts of fly ash, 20 parts of lubricating type impact modifier, 20 parts of toughening agent, 120 parts of coupling agent, 30 parts of flame retardant, 40 parts of antioxidant and 40 parts of compatilizer, naturally air-drying the fly ash, grinding the fly ash by a KNM type quick grinder, adding the polypropylene, the high-density polyethylene, the fly ash and the lubricating type impact modifier into a reaction kettle, heating and stirring the mixture for modification treatment, stirring the mixture at a low speed of 100-150 ℃ for 30-50 min, then sequentially adding the toughening agent, the coupling agent, the flame retardant, the antioxidant and the compatilizer into the reaction kettle, fully stirring the mixture for 30-40 min to obtain a composite material, heating and blending the composite material and the ribbon ingredients by a screw extruder, extruding the head temperature of the screw extruder to 250-260 ℃, the temperature of a screw cylinder to 230-240 ℃, and rotating the screw at a speed of 300-400 r/min, and performing die orifice sizing, vacuum sizing and spray cooling sizing.
The mechanical and flame retardancy tests of the 3 examples are given in the following Table
Figure BDA0003349245660000061
The table above shows that the modified MPP cable protection tube manufactured in example 2 has high mechanical properties and flame retardant properties.
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 (8)

1. A modified MPP cable protection tube comprises polypropylene, ribbon ingredients, high-density polyethylene, fly ash, a lubricating type impact modifier, a toughening agent, a coupling agent, a flame retardant, an antioxidant and a compatilizer, and is characterized in that the modified MPP cable protection tube comprises the following components in parts by mass: 100-200 parts of polypropylene, 5-15 parts of color band ingredients, 100-130 parts of high-density polyethylene, 30-40 parts of fly ash, 10-20 parts of lubricating type impact modifier, 10-20 parts of toughening agent, 70-120 parts of coupling agent, 10-30 parts of flame retardant, 30-40 parts of antioxidant and 20-40 parts of compatilizer.
2. The modified MPP cable protection tube of claim 1, wherein the coupling agent is phenolic silane coupling agent and the compatibilizer is maleic anhydride grafted polyethylene PE-g-MAH.
3. The modified MPP cable protection tube of claim 1, wherein the toughening agent is POE, TPE or EPDM or their mixture, and the flame retardant is tributyl phosphate, tri (2-ethylhexyl) phosphate or tolylene diphenyl phosphate.
4. The modified MPP cable protection tube of claim 1, wherein the antioxidant is selected from pentaerythritol tetrakis [ β - (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ].
5. The modified MPP cable protection tube of claim 1, wherein the lubricating impact modifier is selected from methyl methacrylate-butadiene-styrene (MBS), Chlorinated Polyethylene (CPE) or their mixture.
6. The modified MPP cable protection tube of claim 1, comprising the following manufacturing process steps:
s1, selecting according to the mass parts: 100-200 parts of polypropylene, 5-15 parts of color band ingredients, 100-130 parts of high-density polyethylene, 30-40 parts of fly ash, 10-20 parts of lubricating type impact modifier, 10-20 parts of toughening agent, 70-120 parts of coupling agent, 10-30 parts of flame retardant, 30-40 parts of antioxidant and 20-40 parts of compatilizer.
S2, naturally drying the fly ash, grinding the fly ash by a KNM type quick grinder for use, adding polypropylene, high-density polyethylene, fly ash and a lubricating type impact modifier into a reaction kettle, heating and stirring the mixture for modification, and then sequentially adding a toughening agent, a coupling agent, a flame retardant, an antioxidant and a compatilizer into the reaction kettle for full stirring to obtain a composite material;
and S3, heating, blending and extruding the composite material and the color ribbon ingredients by a screw extruder, shaping by a die orifice, sizing in vacuum, and cooling and shaping by spraying.
7. The modified MPP cable protection tube of claim 6, wherein the working temperature of the modification treatment in the S2 reaction kettle is 100-150 ℃ and the low speed stirring is carried out for 30-50 min, and the toughening agent, the coupling agent, the flame retardant, the antioxidant and the compatilizer are added and the reaction kettle is continuously stirred for 30-40 min.
8. The modified MPP cable protection tube of claim 6, wherein the head temperature of the S2 screw extruder is 250-260 ℃, the barrel temperature is 230-240 ℃, and the screw rotation speed is 300-400 r/min.
CN202111332016.9A 2021-11-11 2021-11-11 Modified MPP cable protection pipe Pending CN113896986A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115772293A (en) * 2022-12-28 2023-03-10 四川潽鑫科技集团有限公司 Preparation process of MPP (modified Polypropylene) power protective sleeve

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103724810A (en) * 2013-12-31 2014-04-16 广东三凌塑料管材有限公司 Polypropylene cable protective sleeve
CN107118440A (en) * 2017-06-12 2017-09-01 安徽国登管业科技有限公司 Polypropylene-polyethylene multiple tube and preparation method thereof
CN110358186A (en) * 2019-07-04 2019-10-22 镇江华科通信设备有限公司 A kind of heat-resistant fireproof MPP cable protection pipe and preparation method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103724810A (en) * 2013-12-31 2014-04-16 广东三凌塑料管材有限公司 Polypropylene cable protective sleeve
CN107118440A (en) * 2017-06-12 2017-09-01 安徽国登管业科技有限公司 Polypropylene-polyethylene multiple tube and preparation method thereof
CN110358186A (en) * 2019-07-04 2019-10-22 镇江华科通信设备有限公司 A kind of heat-resistant fireproof MPP cable protection pipe and preparation method thereof

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* Cited by examiner, † Cited by third party
Title
吴培熙等: "《聚合物共混改性》", 31 August 2017, 中国轻工业出版社 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115772293A (en) * 2022-12-28 2023-03-10 四川潽鑫科技集团有限公司 Preparation process of MPP (modified Polypropylene) power protective sleeve
CN115772293B (en) * 2022-12-28 2024-04-09 四川潽鑫科技集团有限公司 Preparation process of MPP electric power sheath tube

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