CN108177405B - Fireproof and anti-corrosion composite material for steel structure - Google Patents

Fireproof and anti-corrosion composite material for steel structure Download PDF

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CN108177405B
CN108177405B CN201711460943.2A CN201711460943A CN108177405B CN 108177405 B CN108177405 B CN 108177405B CN 201711460943 A CN201711460943 A CN 201711460943A CN 108177405 B CN108177405 B CN 108177405B
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layer
fiber
particles
fiber reinforced
fireproof
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CN108177405A (en
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曹擎宇
侯兆新
郝挺宇
郝彬
熊喆怡
王志文
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Metallurgical Construction Research Institute (shenzhen) Co Ltd
Central Research Institute of Building and Construction Co Ltd MCC Group
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Metallurgical Construction Research Institute (shenzhen) Co Ltd
Central Research Institute of Building and Construction Co Ltd MCC Group
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B13/00—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material
    • B32B13/02—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material with fibres or particles being present as additives in the layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B13/00—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material
    • B32B13/14—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/02—Coating on the layer surface on fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/26—Polymeric coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0261—Polyamide fibres
    • B32B2262/0269—Aromatic polyamide fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/106—Carbon fibres, e.g. graphite fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/14—Mixture of at least two fibres made of different materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/10—Inorganic particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/10—Inorganic particles
    • B32B2264/102—Oxide or hydroxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/10—Inorganic particles
    • B32B2264/107—Ceramic
    • B32B2264/108—Carbon, e.g. graphite particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2571/00—Protective equipment

Abstract

The invention provides a fireproof and anticorrosion composite material for a steel structure, which sequentially comprises the following components from inside to outside: the fireproof fiber reinforced concrete comprises a first fiber reinforced concrete layer, a first fiber reinforced layer, a first fireproof fiber layer, a first fluorine resin layer, a second fireproof fiber layer, a third fireproof fiber layer, a second fiber reinforced layer and a fourth fluorine resin layer, wherein the first fluorine resin layer, the second fluorine resin layer and the fourth fluorine resin layer are doped with fireproof particles, the second fiber reinforced layer is doped with activated carbon particles and nano silica particles, and the third fireproof fiber layer is doped with activated carbon particles and nano silica particles. The invention designs the fiber reinforced layer, the anti-corrosion layer and the fire-resistant layer, so that the composite material has high mechanical property and has the characteristics of fire resistance and corrosion resistance. According to the invention, the refractory particles are added into the corrosion-resistant layer, so that the refractory performance of the corrosion-resistant layer is improved. According to the invention, the activated carbon particles are added into the fire-resistant layer and the enhancement layer, so that the composite material can adsorb toxic gas generated after the corrosion-resistant layer is ablated.

Description

Fireproof and anti-corrosion composite material for steel structure
Technical Field
The invention relates to a fireproof and anticorrosive composite material, in particular to a fireproof and anticorrosive composite material for a steel structure.
Background
The large-scale steel structure is as follows: lightning rod iron towers, offshore lighthouses, large reservoir gates, water supply towers, offshore oil production facilities, tank cars, spherical tanks, storage tanks, oil tanks, carbonizers, heat exchangers, chimneys, containers, ship hulls, offshore platform steel structures and the like are all in the corrosion environment of the ocean atmosphere and the industrial atmosphere for a long time. Long-acting coating protection is essential if long-term use is to be made without extensive maintenance.
The layers commonly used at present include: the metal zinc and aluminum coating has the characteristic of great atmospheric corrosion resistance. The steel member is sprayed with zinc or aluminum, the zinc and the aluminum are negative potential, and the steel forms a sacrificial anode protection effect, so that the steel is basically protected. At present, the corrosion of industrial atmosphere and marine atmosphere is prevented by an aluminum spraying coating, and the characteristics are as follows: the binding force between the aluminum spraying coating and the steel substrate is firm, the service life of the coating is long, and the long-term economic benefit is good; the process is flexible, is suitable for long-acting protection of important large and difficult-to-maintain steel structures, and can be constructed on site; the zinc-sprayed or aluminum-sprayed coating is sealed by adding the anticorrosive coating, so that the service life of the coating can be greatly prolonged, and the zinc-sprayed or aluminum-sprayed coating is the best bottom layer of the anticorrosive coating from the theoretical and practical application effects. The protective life of the composite coating of the metal spraying coating and the anticorrosive coating is longer than the sum of the lives of the metal spraying coating and the anticorrosive coating, and is several times of the life of a single coating protective layer. The heavy-duty anticorrosive long-acting paint consists of a primer, an intermediate paint and a finish paint. The aluminum spraying coating is most economical in long-term economy, but the one-time investment is large, and the coating with good construction can be maintained within 10 years. The epoxy zinc-rich primer, the epoxy micaceous iron intermediate paint and the acrylic polyurethane long-acting protection system have better economical efficiency.
However, the prior art using metallic zinc and aluminum coatings for corrosion protection has the following disadvantages: firstly, metallic zinc, aluminium coating are very high to the construction requirement, and the anticorrosive of more important steel construction position needs to have professional detection mechanism to detect and accept at present, if the acceptance is unqualified, still need redo anode protection, and so anticorrosive cost greatly increased, in addition, only coating metallic zinc, aluminium coating can not make the steel construction possess fire-resistant characteristic, lead to can not accomplish between fire-resistant and corrosion-resistant compromise.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The object of the present invention is to provide a fire-resistant and corrosion-resistant composite material for steel structures, which overcomes the drawbacks of the prior art.
In order to achieve the purpose, the invention provides a fireproof and anticorrosion composite material for a steel structure, which sequentially comprises the following components from inside to outside: the fireproof fiber reinforced concrete comprises a first fiber reinforced concrete layer, a first fiber reinforced layer, a first fireproof fiber layer, a first fluorine resin layer, a second fireproof fiber layer, a third fireproof fiber layer, a second fiber reinforced layer and a fourth fluorine resin layer, wherein the first fluorine resin layer, the second fluorine resin layer and the fourth fluorine resin layer are doped with fireproof particles, the second fiber reinforced layer is doped with activated carbon particles and nano silica particles, and the third fireproof fiber layer is doped with activated carbon particles and nano silica particles.
Preferably, in the above technical solution, the second refractory fiber layer, the first fiber reinforced layer and the first refractory fiber layer are doped with activated carbon particles.
Preferably, in the above technical solution, the refractory particles are mixed particles of silicon dioxide and silicon nitride, and the mixed particles of silicon dioxide and silicon nitride are prepared by the following method: providing silicon powder with the grain diameter of 1-5 mu m and silicon nitride powder with the grain diameter of 20-30 nm; carrying out first oxidation treatment on the silicon powder; reducing the oxidized silicon powder to ensure that pores appear on the surface of the silicon powder particles, wherein the pore diameter of the pores is 50-100nm, and the porosity is 20-30%; carrying out ball milling on the reduced silicon powder and silicon nitride powder for 20-30h to obtain alloyed powder; and carrying out second oxidation treatment on the alloyed powder to obtain silicon dioxide and silicon nitride mixed particles.
Preferably, in the above technical solution, the specific process of the first oxidation treatment is oxidation treatment at 1000-1300 ℃ for 10-20 h.
Preferably, in the above technical scheme, the specific process of the reduction treatment is that the reduction treatment is carried out for 10-20h at the temperature of 1000-1300 ℃ in the hydrogen atmosphere.
Preferably, in the above technical solution, the first fiber reinforced concrete layer is a glass fiber and carbon fiber reinforced concrete layer, wherein the mass ratio of the glass fiber to the carbon fiber is 10:1-8:1, and the total mass of the glass fiber and the carbon fiber accounts for 10-15% of the mass of the first fiber reinforced concrete layer.
Preferably, in the above technical solution, in the second fiber reinforced layer, the mass ratio of the activated carbon particles to the nano silica particles is 4:1-3:1, and the total mass of the activated carbon particles and the nano silica particles accounts for 5-10% of the mass of the second fiber reinforced layer.
Preferably, in the above technical solution, in the third refractory fiber layer, the mass ratio of the activated carbon particles to the nano silica particles is 2:1-1:1, and the total mass of the activated carbon particles and the nano silica particles accounts for 15-20% of the mass of the third refractory fiber layer.
Preferably, in the above technical solution, in the first fiber reinforced layer, the activated carbon particles account for 2-3% of the mass of the first fiber reinforced layer.
Compared with the prior art, the invention has the following beneficial effects: the invention designs the fiber reinforced layer, the anti-corrosion layer and the fire-resistant layer, so that the composite material has high mechanical property and has the characteristics of fire resistance and corrosion resistance. According to the invention, the refractory particles are added into the corrosion-resistant layer, so that the refractory property of the corrosion-resistant layer is improved, the repeated repair of a layer structure or the rapid damage of the layer structure is avoided, and the refractory performance of the composite material added with the refractory particles is greatly improved through the special design of the refractory particles. Experience shows that a considerable part of damage is caused by toxic gas after combustion in the fire process, so that the composite material can adsorb the toxic gas generated after the corrosion-resistant layer is ablated by adding the activated carbon particles into the fire-resistant layer and the enhancement layer.
Drawings
Fig. 1 is a schematic structural view of a fire protection and corrosion prevention composite material for a steel structure according to the present invention.
Detailed Description
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component. The composite material of the present invention may be manufactured using a method known in the art, for example, the fiber layers may be bonded to each other using concrete, and the fluororesin may be directly coated on other surfaces. The particles of the present invention may be purchased from chemical stores. The specific compositions of the reinforced fiber layer, the refractory fiber layer and the fluororesin are not limited, any reinforced fiber or refractory fiber can achieve the purpose of the invention, and for the convenience of comparison experiment results, Kevlar fibers are used for all the reinforced fiber layers in the embodiment of the invention, alumina refractory fibers are used as the refractory fibers, and PTFE is used as the fluororesin.
As shown in fig. 1, the fireproof and anticorrosion composite material for steel structures of the present invention comprises, in order from inside to outside: a first fiber reinforced concrete layer 109, a first fiber reinforced layer 108, a first fire-resistant fiber layer 107, a first fluorine resin layer 106, a second fluorine resin layer 105, a second fire-resistant fiber layer 104, a third fire-resistant fiber layer 103, a second fiber reinforced layer 102, and a fourth fluorine resin layer 101.
Example 1
The composite material sequentially comprises from inside to outside: the fireproof fiber reinforced concrete comprises a first fiber reinforced concrete layer, a first fiber reinforced layer, a first fireproof fiber layer, a first fluorine resin layer, a second fireproof fiber layer, a third fireproof fiber layer, a second fiber reinforced layer and a fourth fluorine resin layer, wherein the first fluorine resin layer, the second fluorine resin layer and the fourth fluorine resin layer are doped with fireproof particles, the second fiber reinforced layer is doped with activated carbon particles and nano silica particles, and the third fireproof fiber layer is doped with activated carbon particles and nano silica particles. The second refractory fiber layer, the first fiber reinforced layer and the first refractory fiber layer are doped with activated carbon particles. The refractory particles are mixed particles of silicon dioxide and silicon nitride, and the mixed particles of silicon dioxide and silicon nitride are prepared by the following method: providing silicon powder with the grain diameter of 1 mu m and silicon nitride powder with the grain diameter of 20 nm; carrying out first oxidation treatment on the silicon powder; reducing the oxidized silicon powder to enable the surface of the silicon powder particles to have pores, wherein the pore diameter of the pores is 50nm, and the porosity is 20%; carrying out ball milling on the reduced silicon powder and silicon nitride powder for 20h to obtain alloyed powder; and carrying out second oxidation treatment on the alloyed powder to obtain silicon dioxide and silicon nitride mixed particles. The specific process of the first oxidation treatment is oxidation treatment for 10 hours at 1000 ℃. The specific process of the reduction treatment is that the reduction treatment is carried out for 10 hours at 1000 ℃ in a hydrogen atmosphere. The first fiber reinforced concrete layer is a glass fiber and carbon fiber reinforced concrete layer, wherein the mass ratio of the glass fibers to the carbon fibers is 10:1, and the total mass of the glass fibers and the carbon fibers accounts for 10% of the mass of the first fiber reinforced concrete layer. In the second fiber-reinforced layer, the mass ratio of the activated carbon particles to the nano silica particles was 4:1, and the total mass of the activated carbon particles and the nano silica particles accounted for 5% of the mass of the second fiber-reinforced layer. In the third refractory fiber layer, the mass ratio of the activated carbon particles to the nano silica particles was 2:1, and the total mass of the activated carbon particles and the nano silica particles accounted for 15% of the mass of the third refractory fiber layer. In the first fiber-reinforced layer, the activated carbon particles account for 2% of the mass of the first fiber-reinforced layer.
Example 2
The composite material sequentially comprises from inside to outside: the fireproof fiber reinforced concrete comprises a first fiber reinforced concrete layer, a first fiber reinforced layer, a first fireproof fiber layer, a first fluorine resin layer, a second fireproof fiber layer, a third fireproof fiber layer, a second fiber reinforced layer and a fourth fluorine resin layer, wherein the first fluorine resin layer, the second fluorine resin layer and the fourth fluorine resin layer are doped with fireproof particles, the second fiber reinforced layer is doped with activated carbon particles and nano silica particles, and the third fireproof fiber layer is doped with activated carbon particles and nano silica particles. The second refractory fiber layer, the first fiber reinforced layer and the first refractory fiber layer are doped with activated carbon particles. The refractory particles are mixed particles of silicon dioxide and silicon nitride, and the mixed particles of silicon dioxide and silicon nitride are prepared by the following method: providing silicon powder with the particle size of 5 mu m and silicon nitride powder with the particle size of 30 nm; carrying out first oxidation treatment on the silicon powder; reducing the oxidized silicon powder to ensure that pores appear on the surface of the silicon powder particles, wherein the pore diameter of the pores is 100nm, and the porosity is 30%; carrying out ball milling on the reduced silicon powder and silicon nitride powder for 30h to obtain alloyed powder; and carrying out second oxidation treatment on the alloyed powder to obtain silicon dioxide and silicon nitride mixed particles. The specific process of the first oxidation treatment is oxidation treatment for 20 hours at 1300 ℃. The specific process of the reduction treatment is that the reduction treatment is carried out for 20 hours at 1300 ℃ in a hydrogen atmosphere. The first fiber reinforced concrete layer is a glass fiber and carbon fiber reinforced concrete layer, wherein the mass ratio of the glass fibers to the carbon fibers is 8:1, and the total mass of the glass fibers and the carbon fibers accounts for 15% of the mass of the first fiber reinforced concrete layer. In the second fiber-reinforced layer, the mass ratio of the activated carbon particles to the nano silica particles was 3:1, and the total mass of the activated carbon particles and the nano silica particles accounted for 10% of the mass of the second fiber-reinforced layer. In the third refractory fiber layer, the mass ratio of the activated carbon particles to the nano silica particles is 1:1, and the total mass of the activated carbon particles and the nano silica particles accounts for 20% of the mass of the third refractory fiber layer. In the first fiber-reinforced layer, the activated carbon particles accounted for 3% of the mass of the first fiber-reinforced layer.
Example 3
The composite material sequentially comprises from inside to outside: the fireproof fiber reinforced concrete comprises a first fiber reinforced concrete layer, a first fiber reinforced layer, a first fireproof fiber layer, a first fluorine resin layer, a second fireproof fiber layer, a third fireproof fiber layer, a second fiber reinforced layer and a fourth fluorine resin layer, wherein the first fluorine resin layer, the second fluorine resin layer and the fourth fluorine resin layer are doped with fireproof particles, the second fiber reinforced layer is doped with activated carbon particles and nano silica particles, and the third fireproof fiber layer is doped with activated carbon particles and nano silica particles. The second refractory fiber layer, the first fiber reinforced layer and the first refractory fiber layer are doped with activated carbon particles. The refractory particles are mixed particles of silicon dioxide and silicon nitride, and the mixed particles of silicon dioxide and silicon nitride are prepared by the following method: providing silicon powder with the grain diameter of 3 mu m and silicon nitride powder with the grain diameter of 25 nm; carrying out first oxidation treatment on the silicon powder; reducing the oxidized silicon powder to enable the surface of the silicon powder particles to have pores, wherein the pore diameter of the pores is 75nm, and the porosity is 25%; carrying out ball milling on the reduced silicon powder and silicon nitride powder for 25h to obtain alloyed powder; and carrying out second oxidation treatment on the alloyed powder to obtain silicon dioxide and silicon nitride mixed particles. The specific process of the first oxidation treatment is oxidation treatment for 15 hours at 1200 ℃. The specific process of the reduction treatment is that the reduction treatment is carried out for 15 hours at 1200 ℃ in a hydrogen atmosphere. The first fiber reinforced concrete layer is a glass fiber and carbon fiber reinforced concrete layer, wherein the mass ratio of the glass fibers to the carbon fibers is 9:1, and the total mass of the glass fibers and the carbon fibers accounts for 13% of the mass of the first fiber reinforced concrete layer. In the second fiber-reinforced layer, the mass ratio of the activated carbon particles to the nano silica particles was 3.5:1, and the total mass of the activated carbon particles and the nano silica particles accounted for 8% of the mass of the second fiber-reinforced layer. In the third refractory fiber layer, the mass ratio of the activated carbon particles to the nano silica particles was 1.5:1, and the total mass of the activated carbon particles and the nano silica particles accounted for 18% of the mass of the third refractory fiber layer. In the first fiber-reinforced layer, the activated carbon particles accounted for 2.5% of the mass of the first fiber-reinforced layer.
Example 4
The composite material sequentially comprises from inside to outside: the fireproof fiber reinforced concrete comprises a first fiber reinforced concrete layer, a first fireproof fiber layer, a first fluorine resin layer, a second fireproof fiber layer, a third fireproof fiber layer, a second fiber reinforced layer and a fourth fluorine resin layer. The other conditions, parameters, components and proportions are the same as in example 1.
Example 5
The composite material sequentially comprises from inside to outside: the fireproof fiber reinforced concrete comprises a first fiber reinforced concrete layer, a first fiber reinforced layer, a first fluorine resin layer, a second fireproof fiber layer, a third fireproof fiber layer, a second fiber reinforced layer and a fourth fluorine resin layer. The other conditions, parameters, components and proportions are the same as in example 1.
Example 6
The composite material sequentially comprises from inside to outside: the first fiber reinforced concrete layer, the first fiber reinforced layer, the first fire-resistant fiber layer, the second fire-resistant fiber layer, the third fire-resistant fiber layer, the second fiber reinforced layer and the fourth fluorine resin layer, and the rest conditions, parameters, components and proportions are the same as those in example 1.
Example 7
The composite material sequentially comprises from inside to outside: the first fiber reinforced concrete layer, the first fiber reinforced layer, the first fire-resistant fiber layer, the first fluororesin layer, the second fire-resistant fiber layer, the third fire-resistant fiber layer and the second fiber reinforced layer were all the same as in example 1.
Example 8
The first fluororesin layer, the second fluororesin layer and the fourth fluororesin layer are not doped with refractory particles. The other conditions, parameters, components and proportions are the same as in example 1.
Example 9
The first fluorine resin layer, the second fluorine resin layer and the fourth fluorine resin layer are doped with silicon nitride particles. The other conditions, parameters, components and proportions are the same as in example 1.
Example 10
The second fiber reinforced layer is not doped with activated carbon particles, the third refractory fiber layer is not doped with activated carbon particles, and the rest conditions, parameters, components and proportions are the same as those of the embodiment 1.
Example 11
The second fiber reinforced layer is not doped with nano silica, the third refractory fiber layer is not doped with nano silica, and the rest conditions, parameters, components and proportions are the same as those in the embodiment 1.
Example 12
The refractory particles are mixed particles of silicon dioxide and silicon nitride, and the mixed particles of silicon dioxide and silicon nitride are prepared by the following method: carrying out first oxidation treatment on the silicon powder; and reducing the oxidized silicon powder to ensure that pores appear on the surface of the silicon powder particles, wherein the pore diameter of the pores is 30nm, and the porosity is 15%. The specific process of the first oxidation treatment is oxidation treatment for 8 hours at 900 ℃. The specific process of the reduction treatment is that the reduction treatment is carried out for 8 hours at 900 ℃ in a hydrogen atmosphere. The other conditions, parameters, components and proportions are the same as in example 1.
Example 13
The refractory particles are mixed particles of silicon dioxide and silicon nitride, and the mixed particles of silicon dioxide and silicon nitride are prepared by the following method: carrying out first oxidation treatment on the silicon powder; and reducing the oxidized silicon powder to ensure that pores appear on the surface of the silicon powder particles, wherein the pore diameter of the pores is 120nm, and the porosity is 40%. The specific process of the first oxidation treatment is oxidation treatment for 30 hours at 1500 ℃. The specific process of the reduction treatment is that the reduction treatment is carried out for 30 hours at 1500 ℃ in hydrogen atmosphere. The other conditions, parameters, components and proportions are the same as in example 1.
Example 14
The alloying powder was not subjected to the second oxidation treatment, and the remaining conditions, parameters, components and compounding ratio were the same as in example 1.
Example 15
The first fiber reinforced concrete layer is a glass fiber and carbon fiber reinforced concrete layer, wherein the mass ratio of the glass fiber to the carbon fiber is 15: 1. The other conditions, parameters, components and proportions are the same as in example 1.
Example 16
The first fiber reinforced concrete layer is a glass fiber and carbon fiber reinforced concrete layer, wherein the mass ratio of the glass fiber to the carbon fiber is 5: 1. The other conditions, parameters, components and proportions are the same as in example 1.
Example 17
The first fiber reinforced concrete layer is a glass fiber and carbon fiber reinforced concrete layer, wherein the total mass of the glass fiber and the carbon fiber accounts for 5% of the mass of the first fiber reinforced concrete layer. The other conditions, parameters, components and proportions are the same as in example 1.
Example 18
The first fiber reinforced concrete layer is a glass fiber and carbon fiber reinforced concrete layer, wherein the total mass of the glass fiber and the carbon fiber accounts for 20% of the mass of the first fiber reinforced concrete layer. The other conditions, parameters, components and proportions are the same as in example 1.
Example 19
In the second fiber reinforced layer, the mass ratio of the activated carbon particles to the nano silica particles was 10:1, and the remaining conditions, parameters, components, and proportions were the same as in example 1.
Example 20
In the second fiber reinforced layer, the mass ratio of the activated carbon particles to the nano silica particles was 1:1, and the remaining conditions, parameters, components, and proportions were the same as in example 1.
Example 21
In the third refractory fiber layer, the mass ratio of the activated carbon particles to the nano silica particles is 5:1, and the total mass of the activated carbon particles and the nano silica particles accounts for 25% of the mass of the third refractory fiber layer. The other conditions, parameters, components and proportions are the same as in example 1.
Example 22
In the third refractory fiber layer, the mass ratio of the activated carbon particles to the nano silica particles is 1:5, and the total mass of the activated carbon particles and the nano silica particles accounts for 5% of the mass of the third refractory fiber layer. The other conditions, parameters, components and proportions are the same as in example 1.
Example 23
In the first fiber-reinforced layer, the activated carbon particles account for 5% of the mass of the first fiber-reinforced layer.
Examples 1-23 were tested for tensile strength, impact toughness, refractoriness, oxidation resistance, volume of toxic gases released by combustion, and corrosion failure time. The test methods for the above tests are well known in the art and are intended to facilitate clear comparison of experimental results. All test results were normalized based on the indices of example 1. See table 1 for results. TABLE 1
Figure BDA0001530259950000101
Figure BDA0001530259950000111
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims (9)

1. The utility model provides a fire prevention anticorrosion combined material for steel construction which characterized in that: the composite material sequentially comprises from inside to outside: the fireproof fiber reinforced concrete comprises a first fiber reinforced concrete layer, a first fiber reinforced layer, a first fireproof fiber layer, a first fluorine resin layer, a second fireproof fiber layer, a third fireproof fiber layer, a second fiber reinforced layer and a fourth fluorine resin layer, wherein the first fluorine resin layer, the second fluorine resin layer and the fourth fluorine resin layer are doped with fireproof particles, the second fiber reinforced layer is doped with activated carbon particles and nano silica particles, and the third fireproof fiber layer is doped with activated carbon particles and nano silica particles.
2. The composite material of claim 1, wherein: the second refractory fiber layer, the first fiber reinforced layer and the first refractory fiber layer are doped with activated carbon particles.
3. The composite material of claim 1, wherein: the refractory particles are mixed particles of silicon dioxide and silicon nitride, and the mixed particles of silicon dioxide and silicon nitride are prepared by the following method:
providing silicon powder with the grain diameter of 1-5 mu m and silicon nitride powder with the grain diameter of 20-30 nm;
carrying out first oxidation treatment on the silicon powder;
reducing the oxidized silicon powder to enable the surface of silicon powder particles to have pores, wherein the pore diameter of the pores is 50-100nm, and the porosity is 20-30%;
carrying out ball milling on the reduced silicon powder and the silicon nitride powder for 20-30h to obtain alloyed powder;
and carrying out second oxidation treatment on the alloyed powder to obtain the silicon dioxide and silicon nitride mixed particles.
4. The composite material of claim 3, wherein: the specific process of the first oxidation treatment is oxidation treatment for 10-20h at the temperature of 1000-1300 ℃.
5. The composite material of claim 3, wherein: the specific process of the reduction treatment is that the reduction treatment is carried out for 10-20h at the temperature of 1000-1300 ℃ under the hydrogen atmosphere.
6. The composite material of claim 1, wherein: the first fiber reinforced concrete layer is a glass fiber and carbon fiber reinforced concrete layer, wherein the mass ratio of the glass fibers to the carbon fibers is 10:1-8:1, and the total mass of the glass fibers and the carbon fibers accounts for 10-15% of the mass of the first fiber reinforced concrete layer.
7. The composite material of claim 1, wherein: in the second fiber reinforced layer, the mass ratio of the activated carbon particles to the nano silica particles is 4:1-3:1, and the total mass of the activated carbon particles and the nano silica particles accounts for 5-10% of the mass of the second fiber reinforced layer.
8. The composite material of claim 1, wherein: in the third refractory fiber layer, the mass ratio of the activated carbon particles to the nano silica particles is 2:1-1:1, and the total mass of the activated carbon particles and the nano silica particles accounts for 15-20% of the mass of the third refractory fiber layer.
9. The composite material of claim 2, wherein: in the first fiber reinforced layer, the activated carbon particles account for 2-3% of the mass of the first fiber reinforced layer.
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CN200954702Y (en) * 2006-09-30 2007-10-03 许刚 High-bending-strength fire-retardant heat-insulation honeycomb composite material product
CN203623058U (en) * 2013-12-24 2014-06-04 上海世达钢结构工程有限公司 Steel structural member coated with outer protective layer
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