CN111253626A - High-temperature-resistant ablation-resistant ceramic mineral filling oxygen insulation material for cable and preparation method thereof - Google Patents
High-temperature-resistant ablation-resistant ceramic mineral filling oxygen insulation material for cable and preparation method thereof Download PDFInfo
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Abstract
The invention relates to a preparation method of a high-temperature-resistant ablation-resistant ceramic mineral filling oxygen-insulating material for cables. The high-temperature-resistant ablation-resistant ceramic mineral filled oxygen insulation material for the cable comprises a flame retardant; a smoke suppressant; ceramic powder A; ceramic powder B; a binder; a coupling agent; a lubricant; an antistatic agent; a release agent; the thickener has simple preparation process and easy operation, and the raw materials are mixed uniformly, mixed by adding the adhesive according to a certain proportion and extruded on the surface by adopting a single screw extrusion process. The invention is mainly used for the filling layer of the medium and low voltage cable, has excellent flame retardant effect, low smoke density and high curing strength, can form compact ceramic products in a high temperature environment, and can effectively protect the internal structure of the cable.
Description
Technical Field
The invention relates to a high-temperature-resistant ablation-resistant ceramic mineral filling oxygen insulation material for a cable and a preparation method thereof.
Background
In recent years, people have more profound understanding on fire fighting and fire prevention safety due to disasters of people's lives and properties caused by the fires of a plurality of domestic large public entertainment places, chemical engineering, coal mines and commercial buildings. At present, the fire prevention and fire resistance measures required by the design rules of electric wires and cables in China are only passive fire protection after the electric wires and cables are ignited. The prevention of wire and cable fire must be started from controlling dangerous factors and applying relevant standards and taking corresponding fire prevention measures. The related reports of ceramic fireproof fire-resistant polyolefin, silicon rubber and the like are more and more, but the requirements on equipment and process are higher, and the high-temperature-resistant ablation-resistant ceramic mineral filling oxygen insulation material for the cable is simple in preparation and processing process, low in cost and the like, and can gradually replace resin type ceramic products with higher cost.
In the prior literature, relevant reports have been made on ceramic filling type materials, for example, Chinese patent application (publication number: CN 201611072226) discloses an ablation-resistant EPDM thermal insulation material filled with a magnesium-based ceramic precursor, the components of which are mainly inorganic filling such as a magnesium-based high-temperature framework material and a ceramic adhesive, and a high-temperature cracked MgO product has the characteristics of high melting point, no melting and the like and can serve as a high-temperature framework for cracking a carbonized layer.
Disclosure of Invention
The invention aims to provide a preparation method of a high-temperature-resistant ablation-resistant ceramic mineral filled oxygen insulation material for a cable.
The purpose of the invention is realized by the following technical scheme:
the invention provides a preparation method of a high-temperature-resistant ablation-resistant ceramic mineral filled oxygen insulation material for cables. The paint comprises the following components in parts by weight:
40-100 parts of a flame retardant;
5-20 parts of a smoke suppressant;
50-80 parts of ceramic powder A;
10-30 parts of ceramic powder B;
20-30 parts of adhesive
2-5 parts of a lubricant;
2-5 parts of a coupling agent;
2-5 parts of an antistatic agent;
2-5 parts of a release agent;
5-20 parts of a thickening agent;
the invention relates to a high-temperature-resistant ablation-resistant ceramization mineral filling oxygen insulation material for a cable, which further adopts the scheme that the flame retardant is one or a mixture of more of aluminum hydroxide, magnesium hydroxide, red phosphorus, zinc borate, ammonium polyphosphate, melamine and phosphorus-nitrogen flame retardants.
The invention relates to a high-temperature-resistant ablation-resistant ceramic mineral filling oxygen insulation material for a cable, which adopts a further scheme that the smoke suppressant is one or a mixture of a plurality of metal oxides, molybdenum compounds and zinc compounds.
The invention relates to a high-temperature-resistant ablation-resistant ceramic mineral filling oxygen insulation material for cables, which further adopts the scheme that the ceramic powder A is one or a mixture of more of kaolin, argil, clay, mica powder, talcum powder, brucite powder, pyrophyllite powder, montmorillonite powder, wollastonite powder, limestone powder, attapulgite and calcium carbonate.
The invention relates to a high-temperature-resistant ablation-resistant ceramization mineral filling oxygen insulation material for a cable, which further adopts the scheme that ceramic powder B is selected from one or a mixture of more of borax, boron frit, lead oxide glass powder, silicate glass powder, borate glass powder and bismuth oxide glass powder.
The invention relates to a high-temperature-resistant ablation-resistant ceramic mineral filling oxygen insulation material for a cable, which further adopts the scheme that the adhesive is one or a mixture of more of starch, protein, dextrin, water glass, polyvinyl alcohol, carboxymethyl cellulose and epoxy resin.
The invention relates to a high-temperature-resistant ablation-resistant ceramic mineral filling oxygen insulation material for a cable, which further adopts the scheme that the lubricant is one or a mixture of more of glycerol tristearate, low-molecular polyethylene wax, stearic acid, polydimethylsiloxane and OPE wax.
The invention relates to a high-temperature-resistant ablation-resistant ceramic mineral filling oxygen-insulating material for cables, which further adopts the scheme that the coupling agent is selected from one or a mixture of more of KH550, KH560, A151, A171, KR-7, KR-201 and 11-100.
The invention relates to a high-temperature-resistant ablation-resistant ceramic mineral filling oxygen insulation material for cables, which further adopts the scheme that the antistatic agent is one or a mixture of more of dodecyl dimethyl betaine, octyl phenol polyoxyethylene ether, polyoxyethylene stearate and alcohol ether phosphate monoester.
The invention relates to a high-temperature-resistant ablation-resistant ceramic mineral filling oxygen insulation material for cables, which further adopts the scheme that the release agent is selected from one or a mixture of more of talcum powder, fatty acid soap, silicone oil, polyethylene glycol, glycerol and vaseline.
The invention relates to a high-temperature-resistant ablation-resistant ceramic mineral filled oxygen insulation material for a cable, which further adopts the scheme that the thickening agent is one or a mixture of more of silica gel, methylcellulose, hydroxypropyl methylcellulose, sodium carboxymethylcellulose and hydroxyethyl cellulose.
The invention relates to a high-temperature-resistant ablation-resistant ceramic mineral filling oxygen insulation material for a cable. The method is characterized by comprising the following process steps: the flame retardant, the smoke suppressant, the ceramic powder A, the ceramic powder B, the adhesive, the lubricant, the coupling agent, the antistatic agent, the release agent and the thickening agent are sequentially added into a high-speed mixer according to parts, mixed at high and low speeds for 10-15min, and then the mixture is extruded and molded in a single-screw granulator to obtain the high-temperature-resistant ablation-resistant ceramic mineral filling oxygen insulation material for the cable.
The invention has the technical characteristics that:
firstly, the high-temperature-resistant ablation-resistant ceramic mineral filling oxygen-insulating material for the cable has high curing hardness and good processing technology.
Secondly, the high-temperature-resistant ablation-resistant ceramic mineral filling oxygen-insulating material for the cable has good flame-retardant effect and low smoke density, and the oxygen index is more than or equal to 45 percent.
Thirdly, the preparation method of the high-temperature-resistant ablation-resistant ceramic mineral filling oxygen-insulating material for the cable is simple, is easy to operate and can be used for large-scale industrial mass production.
The specific embodiment is as follows:
in order to explain the technical contents, formulation ratios and performance effects of the present invention in detail, the following embodiments are described, but the present invention is not limited to these examples.
Example (b):
the two formulas in the table 1 are prepared according to the parts by weight. And sequentially adding the flame retardant, the smoke suppressant, the ceramic powder A, the ceramic powder B, the adhesive, the lubricant, the coupling agent, the antistatic agent, the release agent and the thickening agent into a high-speed mixer, and performing high-speed mixing for 10-15 minutes. The mixture was then extruded in a single screw pelletizer.
Examples formulations the main performance tests are given in table 2.
TABLE 1 recipe of examples
| Sample (I) | Formulation 1 | Formulation 2 |
| Flame retardant | 50 | 40 |
| Smoke suppressant | 5 | 5 |
| Ceramic powder A | 50 | 50 |
| Ceramic powder B | 10 | 20 |
| Adhesive agent | 25 | 25 |
| Lubricant agent | 2 | 2 |
| Coupling agent | 2 | 2 |
| Antistatic agent | 2 | 2 |
| Release agent | 2 | 2 |
| Thickening agent | 5 | 5 |
Table 2, examples formula performance test table
| Standard of merit | Formulation 1 | Formulation 2 | |
| Bending strength MPa | GB/T 1040.3 | 13.5 | 14.6 |
| Density of smoke | GB/T 8323.2—2008 | ||
| Flameless lighting device | 120 | 130 | |
| With flame | 52 | 50 | |
| Oxygen index% | GB/T 2406.1 | 65 | 60 |
| Density 23 ℃ g/cm3 | GB/T 1033-2008 | 2.10 | 2.20 |
Claims (2)
1. The invention relates to a high-temperature-resistant ablation-resistant ceramic mineral filling oxygen insulation material for cables and a preparation method thereof, wherein the high-temperature-resistant ablation-resistant ceramic mineral filling oxygen insulation material comprises the following components in parts by weight: 40-100 parts of a flame retardant; 5-20 parts of a smoke suppressant; 50-80 parts of ceramic powder A; 10-30 parts of ceramic powder B; 20-30 parts of an adhesive; 2-5 parts of a lubricant; 2-5 parts of a coupling agent; 2-5 parts of an antistatic agent; 2-5 parts of a release agent; 5-20 parts of a thickening agent;
the method is characterized in that:
the flame retardant is selected from one or more of aluminum hydroxide, magnesium hydroxide, red phosphorus, zinc borate, ammonium polyphosphate, melamine and phosphorus-nitrogen flame retardants;
the smoke suppressant is selected from one or more of metal oxide, molybdenum compound and zinc compound;
the ceramic powder A is selected from one or more of kaolin, argil, clay, mica powder, talcum powder, brucite powder, pyrophyllite powder, montmorillonite powder, wollastonite powder, limestone powder, attapulgite and calcium carbonate;
the ceramic powder B is selected from one or more of borax, boron frit, lead oxide glass powder, silicate glass powder, borate glass powder and bismuth oxide glass powder;
the adhesive is one or more of starch, protein, dextrin, water glass, polyvinyl alcohol, carboxymethyl cellulose and epoxy resin;
the lubricant is one or more of glycerol tristearate, low molecular polyethylene wax, stearic acid, polydimethylsiloxane and OPE wax;
the coupling agent is selected from one or more of KH550, KH560, A151, A171, KR-7, KR-201 and 11-100;
the antistatic agent is selected from one or more of dodecyl dimethyl betaine, octyl phenol polyoxyethylene ether, polyoxyethylene stearate and alcohol ether phosphate monoester;
the release agent is selected from one or more of talcum powder, fatty acid soap, silicone oil, polyethylene glycol, glycerol and vaseline;
the thickening agent is selected from one or more of silica gel, methylcellulose, hydroxypropyl methylcellulose, sodium carboxymethylcellulose and hydroxyethyl cellulose.
2. The high-temperature-resistant ablation-resistant ceramic mineral filled oxygen insulation material for the cable and the preparation method thereof according to claim 1 are characterized by comprising the following process steps: 40-100 parts of flame retardant, 5-20 parts of smoke inhibitor, 50-80 parts of ceramic powder A, 10-30 parts of ceramic powder B, 20-30 parts of adhesive, 2-5 parts of lubricant, 2-5 parts of coupling agent and 2-5 parts of antistatic agent according to claim 1; 2-5 parts of a release agent; and (3) sequentially adding 5-20 parts of thickening agent into a high-speed mixer, mixing at high and low speeds for 10-15min, and then extruding and molding the mixture in a single-screw granulator to obtain the high-temperature-resistant ablation-resistant ceramization mineral filling oxygen insulation material for the cable.
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| CN201811465901.2A CN111253626A (en) | 2018-12-03 | 2018-12-03 | High-temperature-resistant ablation-resistant ceramic mineral filling oxygen insulation material for cable and preparation method thereof |
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| CN201811465901.2A CN111253626A (en) | 2018-12-03 | 2018-12-03 | High-temperature-resistant ablation-resistant ceramic mineral filling oxygen insulation material for cable and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113593757A (en) * | 2021-08-25 | 2021-11-02 | 金杯电工衡阳电缆有限公司 | Novel flexible mineral insulated cable |
| CN115491055A (en) * | 2022-10-25 | 2022-12-20 | 王富全 | Smokeless stirring-free composition for wiping hot-dip galvanized steel wire, preparation method and use method thereof |
| WO2023279660A1 (en) * | 2021-07-05 | 2023-01-12 | 中国科学院深圳先进技术研究院 | Flame-retardant polyolefin composite material, and preparation method therefor and use thereof |
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| CN106810173A (en) * | 2016-12-30 | 2017-06-09 | 安徽远征电缆科技有限公司 | A kind of ant prevention cable filler |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023279660A1 (en) * | 2021-07-05 | 2023-01-12 | 中国科学院深圳先进技术研究院 | Flame-retardant polyolefin composite material, and preparation method therefor and use thereof |
| CN113593757A (en) * | 2021-08-25 | 2021-11-02 | 金杯电工衡阳电缆有限公司 | Novel flexible mineral insulated cable |
| CN115491055A (en) * | 2022-10-25 | 2022-12-20 | 王富全 | Smokeless stirring-free composition for wiping hot-dip galvanized steel wire, preparation method and use method thereof |
| CN115491055B (en) * | 2022-10-25 | 2024-03-19 | 王富全 | Smokeless mixing-free composition for wiping hot dip galvanized steel wire, preparation method and use method thereof |
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