CN112708212A - Preparation method of fireproof mud for power cable - Google Patents
Preparation method of fireproof mud for power cable Download PDFInfo
- Publication number
- CN112708212A CN112708212A CN202011467603.4A CN202011467603A CN112708212A CN 112708212 A CN112708212 A CN 112708212A CN 202011467603 A CN202011467603 A CN 202011467603A CN 112708212 A CN112708212 A CN 112708212A
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- CN
- China
- Prior art keywords
- parts
- power cable
- fire
- mud
- ethylene propylene
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L7/00—Compositions of natural rubber
-
- 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
- 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
A preparation method of fire-proof mud for power cables comprises the following steps: mixing the 15-hardness ethylene propylene diene monomer rubber and the natural rubber, adding the zinc oxide, the sulfur and the accelerator, uniformly stirring, sequentially adding the COPNA resin, the rosin, the petroleum wax, the tributyl citrate and the ammonium phosphate, uniformly stirring, heating, cooling to room temperature, and sealing to obtain the fireproof mud for the power cable. The advantages are that: the preparation method has the advantages of easily obtained principle and low cost, the selection of the raw materials effectively ensures the quality and the high temperature resistance of the fire-proof mud, the 15-hardness ethylene propylene diene monomer rubber serving as the main raw material of the fire-proof mud for the power cable has good temperature resistance, the COPNA resin has excellent high temperature resistance, and the prepared fire-proof mud for the power cable has better fire resistance and flame retardance.
Description
Technical Field
The invention relates to a preparation method of fireproof mud for a power cable.
Background
Power cables are electrical energy transmission devices and are widely used in power systems. In the process of power cable connection, maintenance or hole plugging, the fireproof mud made of the flexible flame-retardant material is used, so that the fireproof mud is convenient to use, good in connection effect, capable of avoiding electric leakage and overlarge local resistance, and capable of guaranteeing the service life of a power line. The fire resistance and fire retardancy of the fire-retardant clay for power cables are important indexes for inspecting the fire-retardant clay. The fireproof mud for the power cable can prevent the cable from generating fire, and the expansion of accidents is avoided. To the need of (a).
Disclosure of Invention
The technical problem to be solved by the invention is to provide a preparation method of the fireproof mud for the power cable, which has the advantages of easily obtained principle, low cost, better fireproof performance and flame retardant performance.
The technical scheme of the invention is as follows:
a preparation method of fire-proof mud for power cables comprises the following specific steps:
(1) weighing raw materials
Weighing the following raw materials in parts by weight:
40-45 parts of 15-hardness ethylene propylene diene monomer;
30-40 parts of natural rubber;
25-28 parts of COPNA resin;
15-18 parts of rosin;
8-10 parts of petroleum wax;
8-10 parts of tributyl citrate;
5-5.5 parts of zinc oxide;
3.3 to 3.5 portions of sulfur;
2-3 parts of ammonium phosphate;
1.4 to 1.5 portions of accelerant;
(2) fireproof mud for manufacturing power cable
Mixing 15-hardness ethylene propylene diene monomer and natural rubber, adding zinc oxide, sulfur and an accelerator, uniformly stirring, sequentially adding COPNA resin, rosin, petroleum wax, tributyl citrate and ammonium phosphate, uniformly stirring, heating to 100 ℃, keeping the temperature for 40-60 min, cooling to room temperature, and sealing to obtain the fireproof mud for the power cable.
Further, the fireproof mud for the power cable comprises the following components in parts by weight:
42 parts of 15-hardness ethylene propylene diene monomer;
35 parts of natural rubber;
26 parts of COPNA resin;
16 parts of rosin;
petroleum wax 9 portions
9 parts of tributyl citrate;
5.2 parts of zinc oxide;
3.4 parts of sulfur;
2.5 parts of ammonium phosphate;
1.4 parts of an accelerator;
has better softening performance and excellent bonding performance.
The invention has the beneficial effects that:
the preparation method has the advantages of easily obtained principle and low cost, the selection of the raw materials effectively ensures the quality and the high temperature resistance of the fire-proof mud, the 15-hardness ethylene propylene diene monomer rubber serving as the main raw material of the fire-proof mud for the power cable has good temperature resistance, the COPNA resin has excellent high temperature resistance, and the prepared fire-proof mud for the power cable has better fire resistance and flame retardance.
Detailed Description
Example 1
(1) Weighing raw materials
45kg of 15-hardness ethylene propylene diene monomer;
30kg of natural rubber;
28kg of COPNA resin;
15kg of rosin;
10kg of petroleum wax
8kg of tributyl citrate;
5.5kg of zinc oxide;
3.3kg of sulfur;
3kg of ammonium phosphate;
1.4kg of accelerator;
(2) fireproof mud for manufacturing power cable
Mixing the 15-hardness ethylene propylene diene monomer rubber and the natural rubber, adding the zinc oxide, the sulfur and the accelerator, uniformly stirring, sequentially adding the COPNA resin, the rosin, the petroleum wax, the tributyl citrate and the ammonium phosphate, uniformly stirring, heating to 100 ℃, keeping for 40min, cooling to room temperature, and sealing to obtain the fireproof mud for the power cable.
Example 2
(1) Weighing raw materials
40kg of 15-hardness ethylene propylene diene monomer;
40kg of natural rubber;
COPNA resin 25 kg;
18kg of rosin;
8kg of petroleum wax;
10kg of tributyl citrate;
5kg of zinc oxide;
3.5kg of sulfur;
2kg of ammonium phosphate;
1.5kg of accelerator;
(2) fireproof mud for manufacturing power cable
Mixing the 15-hardness ethylene propylene diene monomer rubber and the natural rubber, adding the zinc oxide, the sulfur and the accelerator, uniformly stirring, sequentially adding the COPNA resin, the rosin, the petroleum wax, the tributyl citrate and the ammonium phosphate, uniformly stirring, heating to 100 ℃, keeping for 60min, cooling to room temperature, and sealing to obtain the fireproof mud for the power cable.
Example 3
(1) Weighing raw materials
42kg of 15-hardness ethylene propylene diene monomer;
35kg of natural rubber;
26kg of COPNA resin;
16kg of rosin;
petroleum wax 9kg
9kg of tributyl citrate;
5.2kg of zinc oxide;
3.4kg of sulfur;
2.5kg of ammonium phosphate;
1.4kg of accelerator;
(2) fireproof mud for manufacturing power cable
Mixing 15-hardness ethylene propylene diene monomer and natural rubber, adding zinc oxide, sulfur and an accelerator, stirring uniformly, sequentially adding COPNA resin, rosin, petroleum wax, tributyl citrate and ammonium phosphate, stirring uniformly, heating to 100 ℃, keeping for 50min, cooling to room temperature, and sealing to obtain the fireproof mud for the power cable. When the surface damage of the cable is repaired, the power cable is kneaded and softened by the fireproof mud and coated in the damaged hole on the surface of the cable, compacted and evenly coated on the surface of the cable, and then the cable is fixed by the power adhesive tape. The fire clay for the cable has excellent bonding performance, and has better fire resistance and flame retardance
The above description is only exemplary of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (2)
1. A preparation method of fire-proof mud for power cables is characterized by comprising the following steps:
the method comprises the following specific steps:
(1) weighing raw materials
Weighing the following raw materials in parts by weight:
40-45 parts of 15-hardness ethylene propylene diene monomer;
30-40 parts of natural rubber;
25-28 parts of COPNA resin;
15-18 parts of rosin;
8-10 parts of petroleum wax;
8-10 parts of tributyl citrate;
5-5.5 parts of zinc oxide;
3.3 to 3.5 portions of sulfur;
2-3 parts of ammonium phosphate;
1.4 to 1.5 portions of accelerant;
(2) fireproof mud for manufacturing power cable
Mixing 15-hardness ethylene propylene diene monomer and natural rubber, adding zinc oxide, sulfur and an accelerator, uniformly stirring, sequentially adding COPNA resin, rosin, petroleum wax, tributyl citrate and ammonium phosphate, uniformly stirring, heating to 100 ℃, keeping the temperature for 40-60 min, cooling to room temperature, and sealing to obtain the fireproof mud for the power cable.
2. The method for preparing fire-proof mud for power cables as claimed in claim 1, wherein the method comprises the following steps:
the fireproof mud for the power cable comprises the following components in parts by weight:
42 parts of 15-hardness ethylene propylene diene monomer;
35 parts of natural rubber;
26 parts of COPNA resin;
16 parts of rosin;
petroleum wax 9 portions
9 parts of tributyl citrate;
5.2 parts of zinc oxide;
3.4 parts of sulfur;
2.5 parts of ammonium phosphate;
and 1.4 parts of an accelerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011467603.4A CN112708212A (en) | 2020-12-14 | 2020-12-14 | Preparation method of fireproof mud for power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011467603.4A CN112708212A (en) | 2020-12-14 | 2020-12-14 | Preparation method of fireproof mud for power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112708212A true CN112708212A (en) | 2021-04-27 |
Family
ID=75543137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011467603.4A Pending CN112708212A (en) | 2020-12-14 | 2020-12-14 | Preparation method of fireproof mud for power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112708212A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1115450A (en) * | 1979-03-23 | 1981-12-29 | J. Watson Pedlow | Fire protective mastic and fire stop |
| CN107353600A (en) * | 2017-07-20 | 2017-11-17 | 合肥安力电力工程有限公司 | A kind of power cable installation fire-proof mud and preparation method thereof |
| CN110117387A (en) * | 2019-06-03 | 2019-08-13 | 伊斯特密封科技（江苏）有限公司 | It prevents fires anti-aging waterproof gas cable seal rubber material and preparation method thereof |
-
2020
- 2020-12-14 CN CN202011467603.4A patent/CN112708212A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1115450A (en) * | 1979-03-23 | 1981-12-29 | J. Watson Pedlow | Fire protective mastic and fire stop |
| CN107353600A (en) * | 2017-07-20 | 2017-11-17 | 合肥安力电力工程有限公司 | A kind of power cable installation fire-proof mud and preparation method thereof |
| CN110117387A (en) * | 2019-06-03 | 2019-08-13 | 伊斯特密封科技（江苏）有限公司 | It prevents fires anti-aging waterproof gas cable seal rubber material and preparation method thereof |
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Application publication date: 20210427 |
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| RJ01 | Rejection of invention patent application after publication |