CN111019277A - Composite reinforced chlorinated polyvinyl chloride cable sheath tube and manufacturing process thereof - Google Patents
Composite reinforced chlorinated polyvinyl chloride cable sheath tube and manufacturing process thereof Download PDFInfo
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- CN111019277A CN111019277A CN201911342656.0A CN201911342656A CN111019277A CN 111019277 A CN111019277 A CN 111019277A CN 201911342656 A CN201911342656 A CN 201911342656A CN 111019277 A CN111019277 A CN 111019277A
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- polyvinyl chloride
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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
- C08L27/22—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 modified by chemical after-treatment
- C08L27/24—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 modified by chemical after-treatment halogenated
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
-
- 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
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/322—Ammonium phosphate
- C08K2003/323—Ammonium polyphosphate
-
- 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
- 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
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- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention discloses a composite reinforced chlorinated polyvinyl chloride cable sheath tube, which comprises a chlorinated polyvinyl chloride tube and a stainless steel tube which is soaked in the chlorinated polyvinyl chloride tube; the chlorinated polyvinyl chloride pipe comprises the following components in parts by weight: 150-180 parts of chlorinated polyvinyl chloride, 30-40 parts of a filler, 18-22 parts of a flame retardant and 9-11 parts of a heat-resistant modifier; the antioxidant is 10102-3 parts, the stabilizer is 2-3 parts, and the lubricant is 2-5 parts. The invention uses the chlorinated polyvinyl chloride as the outer protective pipe of the cable protective sleeve, and adds the flame retardant and the heat-resistant modifier to further improve the temperature resistance and the flame retardant property of the cable protective sleeve, can adapt to the high-temperature environment and keep no deformation, can bear the high temperature generated by overload short circuit of the high-voltage power cable, can better protect the cable inside, and has good use value.
Description
Technical Field
The invention relates to a composite reinforced chlorinated polyvinyl chloride cable sheath tube and a manufacturing process thereof.
Technical Field
The cable sheath pipe is an electric insulating pipe popularized and used in electric power engineering. One of the most common electrically insulating tubes is made of polyethylene or polyvinyl chloride. With the rapid development of power cable buried laying projects, higher requirements are put forward on cable sleeves. In particular, the requirement for flame resistance and weather resistance is increased, and the cable is required to be not deformed in an underground high-temperature use environment and to withstand high temperature generated when a high-voltage power cable is overloaded and short-circuited.
Chlorinated polyvinyl chloride (CPVC) is a product obtained by further chlorinating and modifying polyvinyl chloride (PVC). The mass fraction of the chlorine contained in the PVC is 56.7 percent, and the mass fraction of the chlorine contained in the CPVC reaches 65 to 72 percent. The chlorine content is increased, so that the corrosion resistance, heat resistance, solubility, flame retardance, mechanical strength and the like of the cable are greatly improved compared with PVC, and the cable is relatively low in price compared with other thermoplastic engineering plastics, so that the cable can be used as a new material of a buried power cable protection pipe.
Disclosure of Invention
Aiming at the problems, the invention provides a composite reinforced vinyl chloride cable sheath pipe, which is formed by combining a steel pipe and chlorinated polyvinyl chloride instead of polyvinyl chloride, and has good temperature resistance and can withstand high temperature generated by overload and short circuit of a high-voltage power cable. The specific technical scheme is as follows:
a composite reinforced chlorinated polyvinyl chloride cable sheath tube comprises a chlorinated polyvinyl chloride tube and a stainless steel tube which is soaked in the chlorinated polyvinyl chloride tube; the chlorinated polyvinyl chloride pipe comprises the following components in parts by weight: 150-180 parts of chlorinated polyvinyl chloride, 30-40 parts of a filler, 18-22 parts of a flame retardant and 9-11 parts of a heat-resistant modifier; the antioxidant is 10102-3 parts, the stabilizer is 2-3 parts, and the lubricant is 2-5 parts.
Preferably, the heat-resistant modifier is α -methylstyrene, maleic anhydride and N-substituted maleimide copolymer.
Preferably, in the composite reinforced chlorinated polyvinyl chloride cable sheath tube, the heat-resistant modifier is prepared by mixing α -methylstyrene, maleic anhydride and an N-substituted maleimide copolymer in a mass ratio of α -methylstyrene to maleic anhydride to N-substituted maleimide being 1:2: 1.
Preferably, the flame retardant of the composite reinforced chlorinated polyvinyl chloride cable sheath pipe is a halogen-free flame retardant, and comprises the following components in percentage by weight: 60 wt% of ammonium polyphosphate, 10 wt% of 2-piperazinylene-4-morpholinyl-1, 3, 5-triazine oligomer, 20 wt% of zinc pyrophosphate and 10 wt% of ethylenediamine phosphate.
Preferably, in the composite reinforced chlorinated polyvinyl chloride cable sheath tube, the stabilizer is phenyl salicylate, and the lubricant is polyethylene wax or paraffin wax.
The preparation method of the composite reinforced chlorinated polyvinyl chloride cable sheath pipe comprises the following steps:
1) preparing a chlorinated polyvinyl chloride pipe mixture: weighing the components according to the weight percentage, wherein the flame retardant and the heat-resistant modifier are respectively used as ready-to-use agents; firstly, adding chlorinated polyvinyl chloride and a filler into a mixer, uniformly mixing, adding a prepared flame retardant and a prepared heat-resistant modifier, and continuously stirring for 10-15 min; then adding an antioxidant, a stabilizer and a lubricant, stirring at a low speed for 20-25 min, and uniformly mixing to obtain a chlorinated polyvinyl chloride pipe mixture;
2) steel pipe treatment: carrying out sand blasting treatment on a steel pipe for preparing a cable sheath pipe, removing an oxide layer on the surface of the steel pipe, and cleaning the steel pipe so as to facilitate coating of the steel pipe;
3) plastic dipping: preheating the steel pipe in the step 2), and then uniformly coating the chlorinated polyvinyl chloride pipe mixture prepared in the step 1) on the steel pipe in a plastic-dipped manner to form a chlorinated polyvinyl chloride steel composite pipe;
4) curing treatment: and (4) conveying the chlorinated polyvinyl chloride steel composite pipe prepared in the step (3) into an oven for heating and curing, and cooling to obtain the composite reinforced chlorinated polyvinyl chloride cable sheath pipe.
As a preferable technical scheme, in the step 1), the stirring speed is 500 rpm; the low speed stirring speed was 200 rpm.
According to the preferable technical scheme, in the step 3), the preheating temperature of the steel pipe is 200-250 ℃, and the preheating time is 5-15 min.
As a preferable technical solution, in the step 3), the process conditions of the heating and curing are as follows: the curing temperature is 180-240 ℃, and the curing time is 2-3 min.
Has the advantages that:
the invention uses chlorinated polyvinyl chloride as the outer protective pipe of the cable protective sleeve, and adds the fire retardant and the heat-resistant modifier to further improve the temperature resistance and the fire resistance of the cable protective sleeve, can adapt to the high-temperature environment above 90 ℃ underground and keep non-deformation, and can withstand the high temperature generated by the overload short circuit of the high-voltage power cable above 3 ten thousand volts. In addition, the chlorinated polyvinyl chloride has better mechanical strength corrosion resistance and heat insulation performance than PVC pipes, and in addition, the stainless steel pipes are soaked and molded in the PVC pipes, so that the mechanical support of the PVC pipes is further improved, the cables in the PVC pipes are better protected in the process of pipe burying, and the PVC pipes have good use value.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the embodiments.
Example 1
The embodiment is to prepare a composite reinforced chlorinated polyvinyl chloride cable sheath tube, which comprises the following steps:
1) preparing a chlorinated polyvinyl chloride pipe mixture: weighing the components of the chlorinated polyvinyl chloride pipe material according to the parts by weight: 150 parts of chlorinated polyvinyl chloride, 30 parts of filler, 18 parts of flame retardant and 9 parts of heat-resistant modifier; 10102 parts of antioxidant, 2 parts of stabilizer and 2 parts of lubricant.
The flame retardant is a halogen-free flame retardant, and comprises, by weight, 60 wt% of ammonium polyphosphate, 10 wt% of 2-piperazinyl-4-morpholinyl-1, 3, 5-triazine oligomer, 20 wt% of zinc pyrophosphate and 10 wt% of ethylenediamine phosphate, wherein the stabilizer is phenyl salicylate, the lubricant is polyethylene wax or paraffin wax, and the flame retardant and the heat-resistant modifier are respectively prepared in situ.
Firstly, adding chlorinated polyvinyl chloride and a filler into a mixer, uniformly mixing, adding the prepared flame retardant and heat-resistant modifier, and continuously stirring for 10min at the stirring speed of 500 rpm; then adding an antioxidant, a stabilizer and a lubricant, stirring at a low speed of 200rpm for 20min, and uniformly mixing to obtain a chlorinated polyvinyl chloride pipe mixture.
2) Steel pipe treatment: and (3) carrying out sand blasting treatment on the steel pipe for preparing the cable sheath pipe, removing an oxide layer on the surface of the steel pipe, and cleaning the steel pipe so as to facilitate the coating of the steel pipe.
3) Plastic dipping: preheating the steel pipe in the step 2) for 5min at 200 ℃, and then uniformly coating the chlorinated polyvinyl chloride pipe mixture prepared in the step 1) on the steel pipe in a plastic-dipping manner to form a chlorinated polyvinyl chloride steel composite pipe;
4) curing treatment: and (3) feeding the chlorinated polyvinyl chloride steel composite pipe prepared in the step (3) into an oven, heating and curing for 2min at 180 ℃, and cooling to obtain the composite reinforced chlorinated polyvinyl chloride cable sheath pipe.
Example 2
The embodiment is to prepare a composite reinforced chlorinated polyvinyl chloride cable sheath tube, which comprises the following steps:
1) preparing a chlorinated polyvinyl chloride pipe mixture: weighing the components of the chlorinated polyvinyl chloride pipe material according to the parts by weight: 170 parts of chlorinated polyvinyl chloride, 35 parts of filler, 20 parts of flame retardant and 10 parts of heat-resistant modifier; 10102.5 parts of antioxidant, 2.5 parts of stabilizer and 4 parts of lubricant.
The flame retardant is a halogen-free flame retardant, and comprises, by weight, 60 wt% of ammonium polyphosphate, 10 wt% of 2-piperazinyl-4-morpholinyl-1, 3, 5-triazine oligomer, 20 wt% of zinc pyrophosphate and 10 wt% of ethylenediamine phosphate, wherein the stabilizer is phenyl salicylate, the lubricant is polyethylene wax or paraffin wax, and the flame retardant and the heat-resistant modifier are respectively prepared in situ.
Firstly, adding chlorinated polyvinyl chloride and a filler into a mixer, uniformly mixing, adding the prepared flame retardant and heat-resistant modifier, and continuously stirring for 15min at a stirring speed of 500 rpm; then adding an antioxidant, a stabilizer and a lubricant, stirring at a low speed of 200rpm for 25min, and uniformly mixing to obtain a chlorinated polyvinyl chloride pipe mixture.
2) Steel pipe treatment: and (3) carrying out sand blasting treatment on the steel pipe for preparing the cable sheath pipe, removing an oxide layer on the surface of the steel pipe, and cleaning the steel pipe so as to facilitate the coating of the steel pipe.
3) Plastic dipping: preheating the steel pipe in the step 2) for 10min at 230 ℃, and then uniformly coating the chlorinated polyvinyl chloride pipe mixture prepared in the step 1) on the steel pipe in a plastic-dipping manner to form a chlorinated polyvinyl chloride steel composite pipe;
4) curing treatment: and (3) conveying the chlorinated polyvinyl chloride steel composite pipe prepared in the step (3) into an oven, heating and curing for 3min at 180-240 ℃, and cooling to obtain the composite reinforced chlorinated polyvinyl chloride cable sheath pipe.
Example 3
The embodiment is to prepare a composite reinforced chlorinated polyvinyl chloride cable sheath tube, which comprises the following steps:
1) preparing a chlorinated polyvinyl chloride pipe mixture: weighing the components of the chlorinated polyvinyl chloride pipe material according to the parts by weight: 180 parts of chlorinated polyvinyl chloride, 40 parts of filler, 22 parts of flame retardant and 11 parts of heat-resistant modifier; 10103 parts of antioxidant, 3 parts of stabilizer and 5 parts of lubricant.
The flame retardant is a halogen-free flame retardant, and comprises, by weight, 60 wt% of ammonium polyphosphate, 10 wt% of 2-piperazinyl-4-morpholinyl-1, 3, 5-triazine oligomer, 20 wt% of zinc pyrophosphate and 10 wt% of ethylenediamine phosphate, wherein the stabilizer is phenyl salicylate, the lubricant is polyethylene wax or paraffin wax, and the flame retardant and the heat-resistant modifier are respectively prepared in situ.
Firstly, adding chlorinated polyvinyl chloride and a filler into a mixer, uniformly mixing, adding the prepared flame retardant and heat-resistant modifier, and continuously stirring for 15min at a stirring speed of 500 rpm; then adding an antioxidant, a stabilizer and a lubricant, stirring at a low speed of 200rpm for 25min, and uniformly mixing to obtain a chlorinated polyvinyl chloride pipe mixture.
2) Steel pipe treatment: and (3) carrying out sand blasting treatment on the steel pipe for preparing the cable sheath pipe, removing an oxide layer on the surface of the steel pipe, and cleaning the steel pipe so as to facilitate the coating of the steel pipe.
3) Plastic dipping: preheating the steel pipe in the step 2) for 15min at 250 ℃, and then uniformly coating the chlorinated polyvinyl chloride pipe mixture prepared in the step 1) on the steel pipe in a plastic-dipping manner to form a chlorinated polyvinyl chloride steel composite pipe;
4) curing treatment: and (3) feeding the chlorinated polyvinyl chloride steel composite pipe prepared in the step (3) into an oven, heating and curing for 3min at 240 ℃, and cooling to obtain the composite reinforced chlorinated polyvinyl chloride cable sheath pipe.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.
Claims (9)
1. The utility model provides a compound reinforcing chlorinated polyvinyl chloride cable sheathing pipe which characterized in that: comprises a chlorinated polyvinyl chloride pipe and a stainless steel pipe which is soaked and molded in the chlorinated polyvinyl chloride pipe; the chlorinated polyvinyl chloride pipe comprises the following components in parts by weight: 150-180 parts of chlorinated polyvinyl chloride, 30-40 parts of a filler, 18-22 parts of a flame retardant and 9-11 parts of a heat-resistant modifier; the antioxidant is 10102-3 parts, the stabilizer is 2-3 parts, and the lubricant is 2-5 parts.
2. The composite reinforced chlorinated polyvinyl chloride cable sheath tube as claimed in claim 1, wherein the heat-resistant modifier is a composite of α -methylstyrene, maleic anhydride and N-substituted maleimide copolymer.
3. The composite reinforced chlorinated polyvinyl chloride cable sheath tube as claimed in claim 2, wherein the heat-resistant modifier is prepared by mixing α -methylstyrene, maleic anhydride and N-substituted maleimide at a mass ratio of α -methylstyrene to maleic anhydride to N-substituted maleimide of 1:2: 1.
4. The composite reinforced chlorinated polyvinyl chloride cable sheath tube of claim 1, wherein: the flame retardant is a halogen-free flame retardant, and comprises the following components in percentage by weight: 60 wt% of ammonium polyphosphate, 10 wt% of 2-piperazinylene-4-morpholinyl-1, 3, 5-triazine oligomer, 20 wt% of zinc pyrophosphate and 10 wt% of ethylenediamine phosphate.
5. The composite reinforced chlorinated polyvinyl chloride cable sheath tube of claim 1, wherein: the stabilizer is phenyl salicylate, and the lubricant is polyethylene wax or paraffin wax.
6. The composite reinforced chlorinated polyvinyl chloride cable sheath tube of claim 1, wherein: the preparation method comprises the following steps:
1) preparing a chlorinated polyvinyl chloride pipe mixture: weighing the components according to the weight percentage, wherein the flame retardant and the heat-resistant modifier are respectively used as ready-to-use agents; firstly, adding chlorinated polyvinyl chloride and a filler into a mixer, uniformly mixing, adding a prepared flame retardant and a prepared heat-resistant modifier, and continuously stirring for 10-15 min; then adding an antioxidant, a stabilizer and a lubricant, stirring at a low speed for 20-25 min, and uniformly mixing to obtain a chlorinated polyvinyl chloride pipe mixture;
2) steel pipe treatment: carrying out sand blasting treatment on a steel pipe for preparing a cable sheath pipe, removing an oxide layer on the surface of the steel pipe, and cleaning the steel pipe so as to facilitate coating of the steel pipe;
3) plastic dipping: preheating the steel pipe in the step 2), and then uniformly coating the chlorinated polyvinyl chloride pipe mixture prepared in the step 1) on the steel pipe in a plastic-dipped manner to form a chlorinated polyvinyl chloride steel composite pipe;
4) curing treatment: and (4) conveying the chlorinated polyvinyl chloride steel composite pipe prepared in the step (3) into an oven for heating and curing, and cooling to obtain the composite reinforced chlorinated polyvinyl chloride cable sheath pipe.
7. The composite reinforced chlorinated polyvinyl chloride cable sheath tube of claim 6, wherein: in the step 1), the stirring speed is 500 rpm; the low speed stirring speed was 200 rpm.
8. The composite reinforced chlorinated polyvinyl chloride cable sheath tube of claim 6, wherein: in the step 3), the preheating temperature of the steel pipe is 200-250 ℃, and the preheating time is 5-15 min.
9. The composite reinforced chlorinated polyvinyl chloride cable sheath tube of claim 6, wherein: in the step 3), the process conditions of heating and curing are as follows: the curing temperature is 180-240 ℃, and the curing time is 2-3 min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911342656.0A CN111019277A (en) | 2019-12-23 | 2019-12-23 | Composite reinforced chlorinated polyvinyl chloride cable sheath tube and manufacturing process thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911342656.0A CN111019277A (en) | 2019-12-23 | 2019-12-23 | Composite reinforced chlorinated polyvinyl chloride cable sheath tube and manufacturing process thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111560150A (en) * | 2020-06-29 | 2020-08-21 | 连云港市鼎鑫电力器材有限公司 | Preparation method of CPVC power cable protection pipe |
| CN113150474A (en) * | 2021-04-15 | 2021-07-23 | 陈丽侠 | Fiber-toughened anti-freezing heat-resistant optical cable and preparation method thereof |
| WO2024146646A1 (en) * | 2023-01-06 | 2024-07-11 | 中天科技海缆股份有限公司 | Preparation method for high-voltage cable and high-voltage cable |
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