CN111100424A - Carbon fiber composite material of explosion-proof shell for hazardous gas environment - Google Patents
Carbon fiber composite material of explosion-proof shell for hazardous gas environment Download PDFInfo
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- CN111100424A CN111100424A CN201911401574.9A CN201911401574A CN111100424A CN 111100424 A CN111100424 A CN 111100424A CN 201911401574 A CN201911401574 A CN 201911401574A CN 111100424 A CN111100424 A CN 111100424A
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- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/36—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and impregnating by casting, e.g. vacuum casting
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- 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
- C08K3/02—Elements
- C08K3/04—Carbon
- C08K3/041—Carbon nanotubes
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- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/06—Elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/002—Panels; Plates; Sheets
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- 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
- C08K2201/00—Specific properties of additives
- C08K2201/001—Conductive additives
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- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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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
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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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
- C08L2201/00—Properties
- C08L2201/04—Antistatic
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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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Nanotechnology (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a carbon fiber composite material of an explosion-proof shell for a hazardous gas environment, which comprises the following steps: firstly, laying a layer of carbon fiber on the surface of a mould, then laying a layer of carbon glass fiber on the carbon fiber, alternately laying in sequence, covering a vacuum bag on the mould after laying, carrying out vacuum-pumping filling on the interior of the mould, and carrying out vacuum-pumping filling to obtain the carbon fiber composite board. The carbon fiber composite material of the flameproof housing for the hazardous gas environment has the advantages that the composite material of the carbon fibers and the epoxy resin has higher mechanical strength compared with a metal material, can solve the mechanical spark phenomenon of the metal material, has lighter specific gravity than the metal material, and has the mechanical strength of the metal material, good electrical insulation performance, better thermal stability and better antistatic performance compared with engineering plastics through the full infiltration of the resin in the fibers.
Description
Technical Field
The invention relates to the technical field of explosion-proof materials, in particular to a carbon fiber composite material of an explosion-proof shell for a hazardous gas environment.
Background
In modern industry, the combustible gas is more and more common in practice, and the control of the combustible gas is controlled by electrical equipment, electrical instruments and the like, but when the electrical equipment is used, a certain degree of electric spark is generated, so that the combustible gas is easy to explode, and great safety hazard is brought to modern industrial production.
At present, in order to ensure the safety of the production processes of petroleum, chemical industry, mines and coal, people need to eliminate various 'sparks' and dangerous temperatures generated by electrical switches, static accumulation and solid collision friction in the production process, for electrical equipment, in the environment with combustible gas, people install and use so-called explosion-proof electrical equipment, and from the overall structure of the equipment, the explosion-proof electrical equipment is provided with a shell with proper protection level so as to ensure that built-in electrical components and wires are not damaged by the external possibility, and cable interface units connected with an external power supply and electrical equipment are also arranged, wherein the explosion-proof electrical equipment is a special explosion-proof type and is widely applied to explosive dangerous places with various combustible gas-air mixtures.
The shell of the explosion-proof electrical equipment has enough mechanical strength, can bear the explosion pressure generated when the shell is exploded, cannot be seriously deformed or damaged, is the very classical explosion-proof electrical equipment, and has reliable explosion-proof safety performance and mature manufacturing technology. However, due to the explosion-proof structure, the electrical equipment has a large self-weight and is heavy;
for example, electrical equipment for coal mining working faces and electrical equipment for non-mining working faces are specified to be made of steel plates or cast steel, and at least, the steel plates and the electrical equipment need to be made of gray cast iron with a mark number of HT250 or more;
along with the requirement of underground unmanned production, a plurality of mobile intelligent devices used in a common environment cannot be converted into devices in a hazardous gas environment, the most important point is battery endurance, heavy shells can bring excessive electric energy loss, so that the intelligent devices cannot fully play a role, a light shell material is urgently needed to be found, the use requirement in the hazardous gas environment is met on the premise of meeting the explosion-proof type, and therefore, the carbon fiber composite material of the explosion-proof shell for the hazardous gas environment is provided.
Disclosure of Invention
The invention mainly aims to provide a carbon fiber composite material of a flame-proof shell for a hazardous gas environment, which can effectively solve the problem that the flame-proof shell selected by flame-proof electrical equipment in the hazardous gas environment is heavy and the problem of friction sparks of light metal, search for a novel material with the explosion-proof requirement in the hazardous gas environment, provide a lightweight solution on the premise of meeting the explosion-proof requirement, and provide new possibility for the design of unmanned and intelligent equipment.
In order to achieve the purpose, the invention adopts the technical scheme that:
the carbon fiber composite material of the flameproof shell for the hazardous gas environment comprises the following raw materials in percentage by weight: 8-13 parts of epoxy resin, 30-34 parts of glass fiber, 50-58 parts of carbon fiber and 0.0008-0.0012 part of carbon nano conductive tube.
Preferably, the preparation method of the carbon fiber composite material of the flameproof shell for the hazardous gas environment is characterized by comprising the following steps of:
(1) laying layer by layer: firstly, laying a layer of glass fiber at the bottom end of a mould, then laying a layer of carbon fiber on the glass fiber, and alternately laying the glass fiber and the carbon fiber in sequence;
(2) vacuum infusion: and (3) after the laying in the step (1), covering a vacuum bag on the mold, vacuumizing and filling the interior of the mold, and obtaining the carbon fiber composite board after vacuum filling.
Preferably, in step (1), the number of alternate laying times is 4-8.
Preferably, in the step (2), before the vacuum infusion, the resin adhesive material is connected with the mold through a pipeline, and a resin collector is connected between the vacuum pump and the mold, during the vacuum infusion, negative pressure is generated between the mold and the vacuum bag, the pipeline connected with the resin adhesive material feeds the resin adhesive material into the mold, and the excess resin adhesive material enters between the vacuum pump and the mold and is connected with the resin collector.
Preferably, the resin bonding material is a mixture of epoxy resin and a carbon nanotube.
Compared with the prior art, the invention has the following beneficial effects:
the technology will combine the following requirements for the housing material of explosion-proof electrical equipment:
the composite material of the carbon fiber and the epoxy resin has higher mechanical strength compared with a metal material, solves the mechanical spark phenomenon of the metal material, has lighter specific gravity than the metal material, and breaks away from the material limitation of partial places, such as I-type explosion-proof electrical equipment, and the shell cannot be made of an aluminum alloy material;
secondly, the resin is fully infiltrated in the fiber, so that compared with engineering plastics, the fiber has the mechanical strength of a metal material, good electrical insulation performance, better thermal stability and antistatic performance;
thirdly, the epoxy resin material in the carbon fiber composite material has flame retardant property and can pass related tests such as heat resistance test, cold resistance test, light aging test and the like;
fourthly, the carbon fiber in the carbon fiber composite material has the characteristics of common carbon materials, such as high temperature resistance, friction resistance, electric conduction, heat conduction, corrosion resistance and the like, the appearance of the carbon fiber composite material has obvious anisotropy and softness, the carbon fiber composite material can be processed into various fabrics, the specific gravity of the carbon fiber is small, and the specific strength is very high.
Drawings
FIG. 1 is a flow chart of the whole structure of a carbon fiber composite material of an explosion-proof housing for a hazardous gas environment;
FIG. 2 is a cross-sectional view of a carbon fiber composite material of a flameproof housing for a hazardous gas environment according to the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained by combining the specific embodiments.
As shown in fig. 1-2, the carbon fiber composite material of the flameproof housing for the hazardous gas environment comprises the following raw materials by weight: 10 parts of epoxy resin, 32 parts of glass fiber, 54 parts of carbon fiber and 0.001 part of carbon nano conductive tube.
As shown in fig. 1-2, a method for preparing a carbon fiber composite material of an explosion-proof shell for a hazardous gas environment is characterized by comprising the following steps:
(1) laying layer by layer: firstly, laying a layer of carbon fiber on the surface of a mould, then laying a layer of glass fiber on the carbon fiber, and sequentially and alternately laying for 6 times;
(2) vacuum infusion: after the laying in the step (1), covering a vacuum bag on a mold, vacuumizing and filling the interior of the mold, and obtaining the carbon fiber composite board after vacuum filling, before vacuum filling, connecting a resin bonding material with the mold through a pipeline, and connecting a resin collector between a vacuum pump and the mold.
The carbon fiber composite material used in the invention is a resin-based composite material, and is made into a structural material by a vacuum high-pressure means, and the comprehensive indexes of specific strength and specific modulus are the highest in the existing structural materials. The composite material has the advantages in the fields with strict requirements on density, rigidity, weight, fatigue property and the like, and in the occasions requiring high temperature and chemical stability.
In the carbon fiber composite material of the invention, the epoxy resin: glass fiber: carbon fiber: carbon nanotube-1: 3: 5: 0.001, the tensile strength of the carbon fiber is 5250MPa, the tensile modulus is 235GPa, the elongation is 2.2 percent, and the density is 1.8x103kg/m3. The epoxy resin has flame retardant property, reaches flame retardant UL94-Vo grade, has bending strength of more than or equal to 110MPa and bending strengthThe flexural modulus is more than or equal to 2800MPa, the tensile strength is more than or equal to 65MPa, the tensile modulus is more than or equal to 2800MPa, the elongation at break is more than or equal to 3.5 percent, and the tensile strength and the tensile modulus of the composite material prepared by mixing the carbon fiber and the epoxy resin are 580MPa and 70 GPa.
Secondly, the manufacturing process adopts a layer-by-layer laying method to carry out production, and relevant metal molds are configured to ensure the processing precision.
Moreover, in order to solve the static problem of the non-metallic material, the surface resistivity is ensured to be lower than 1x108And ohmic, the carbon nano conductive tube is added in the resin bonding material to increase the conductivity of the resin bonding material, so that the conductivity of the carbon fiber composite material is greatly improved.
In conclusion, the carbon fiber composite material prepared by the invention has higher strength than that of the existing steel, and the impact resistance, the heat and cold resistance, the light aging performance, the flame retardant performance and the antistatic performance are completely combined with the requirements of the explosion-proof shell material in a hazardous gas environment.
Table 1 is a table for comparing the performance of the carbon fiber composite material with that of the traditional steel explosion-proof shell, cuboids with the length of 20cm, the width of 1.5cm and the height of 0.8cm are respectively intercepted, the tensile strength and the weight of the carbon fiber composite material and the cuboid are detected, and the test results are as follows:
| tensile Strength (MPa) | Weight (g) | |
| HT250 steel material | 250 | 187 |
| Carbon fiber composite material | 560 | 45 |
The experimental data in table 1 show that the carbon fiber composite material of the present invention has tensile strength and weight significantly superior to those of HT250 steel, and the carbon fiber composite material uses carbon fiber and epoxy resin, wherein the carbon fiber has tensile strength of 5250MPa, tensile modulus of 235GPa, and epoxy resin, and has bending strength not less than 110MPa, bending modulus not less than 2800MPa, tensile strength not less than 65MPa, tensile modulus not less than 2800MPa, and elongation at break not less than 3.5%.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The carbon fiber composite material of the flameproof shell for the hazardous gas environment is characterized by comprising the following raw materials in percentage by weight: 8-13 parts of epoxy resin, 30-34 parts of glass fiber, 50-58 parts of carbon fiber and 0.0008-0.0012 part of carbon nano conductive tube.
2. The preparation method of the carbon fiber composite material of the flameproof housing for the hazardous gas environment according to claim 1, which is characterized by comprising the following steps:
(1) laying layer by layer: firstly, laying a layer of carbon fiber on the surface of a mould, then laying a layer of glass fiber on the carbon fiber, and sequentially and alternately laying;
(2) vacuum infusion: and (3) after the laying in the step (1), covering a vacuum bag on the mold, vacuumizing and filling the interior of the mold, and obtaining the carbon fiber composite board after vacuum filling.
3. The preparation method of the carbon fiber composite material of the flameproof housing for the hazardous gas environment according to claim 2, which is characterized by comprising the following steps: in the step (1), the number of the alternate laying times is 4-8.
4. The preparation method of the carbon fiber composite material of the flameproof housing for the hazardous gas environment according to claim 2, which is characterized by comprising the following steps: in the step (2), before vacuum infusion, the resin bonding material is connected with the mould through a pipeline, a resin collector is connected between the vacuum pump and the mould, negative pressure is generated between the mould and the vacuum bag during vacuum infusion, the pipeline connected with the resin bonding material sends the resin bonding material into the mould, and redundant resin bonding material enters the space between the vacuum pump and the mould and is connected with the resin collector.
5. The preparation method of the carbon fiber composite material of the flameproof housing for the hazardous gas environment according to claim 4, which is characterized by comprising the following steps: the resin bonding material is a mixed material of epoxy resin and a carbon nano conductive tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911401574.9A CN111100424A (en) | 2019-12-31 | 2019-12-31 | Carbon fiber composite material of explosion-proof shell for hazardous gas environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911401574.9A CN111100424A (en) | 2019-12-31 | 2019-12-31 | Carbon fiber composite material of explosion-proof shell for hazardous gas environment |
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| Publication Number | Publication Date |
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| CN111100424A true CN111100424A (en) | 2020-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911401574.9A Withdrawn CN111100424A (en) | 2019-12-31 | 2019-12-31 | Carbon fiber composite material of explosion-proof shell for hazardous gas environment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111457211A (en) * | 2020-05-06 | 2020-07-28 | 丹阳丹金航空材料科技有限公司 | High-strength and high-conductivity carbon fiber composite board support and process method thereof |
| CN114531798A (en) * | 2021-12-28 | 2022-05-24 | 安徽玄离智能科技股份有限公司 | Explosion-proof shell material for underground hazardous gas inspection robot |
| CN116811088A (en) * | 2023-08-31 | 2023-09-29 | 成都永益泵业股份有限公司 | Carbon fiber composite material, forming process and pump overcurrent component |
-
2019
- 2019-12-31 CN CN201911401574.9A patent/CN111100424A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111457211A (en) * | 2020-05-06 | 2020-07-28 | 丹阳丹金航空材料科技有限公司 | High-strength and high-conductivity carbon fiber composite board support and process method thereof |
| CN111457211B (en) * | 2020-05-06 | 2021-06-29 | 丹阳丹金航空材料科技有限公司 | High-strength and high-conductivity carbon fiber composite board support and process method thereof |
| CN114531798A (en) * | 2021-12-28 | 2022-05-24 | 安徽玄离智能科技股份有限公司 | Explosion-proof shell material for underground hazardous gas inspection robot |
| CN116811088A (en) * | 2023-08-31 | 2023-09-29 | 成都永益泵业股份有限公司 | Carbon fiber composite material, forming process and pump overcurrent component |
| CN116811088B (en) * | 2023-08-31 | 2023-11-17 | 成都永益泵业股份有限公司 | Carbon fiber composite material, forming process and pump overcurrent component |
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Application publication date: 20200505 |
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