CN109517477B - Fireproof elevator and preparation method thereof - Google Patents
Fireproof elevator and preparation method thereof Download PDFInfo
- Publication number
- CN109517477B CN109517477B CN201811189187.9A CN201811189187A CN109517477B CN 109517477 B CN109517477 B CN 109517477B CN 201811189187 A CN201811189187 A CN 201811189187A CN 109517477 B CN109517477 B CN 109517477B
- Authority
- CN
- China
- Prior art keywords
- parts
- fireproof
- calcium silicate
- coating
- silicate hydrate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000002360 preparation method Methods 0.000 title abstract description 15
- 238000000576 coating method Methods 0.000 claims abstract description 69
- 239000011248 coating agent Substances 0.000 claims abstract description 67
- 239000000378 calcium silicate Substances 0.000 claims abstract description 52
- 229910052918 calcium silicate Inorganic materials 0.000 claims abstract description 52
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 claims abstract description 52
- 239000000203 mixture Substances 0.000 claims abstract description 34
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 31
- 239000003822 epoxy resin Substances 0.000 claims abstract description 28
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 28
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 25
- UGGQKDBXXFIWJD-UHFFFAOYSA-N calcium;dihydroxy(oxo)silane;hydrate Chemical compound O.[Ca].O[Si](O)=O UGGQKDBXXFIWJD-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000000654 additive Substances 0.000 claims abstract description 24
- 230000000996 additive effect Effects 0.000 claims abstract description 24
- MKTRXTLKNXLULX-UHFFFAOYSA-P pentacalcium;dioxido(oxo)silane;hydron;tetrahydrate Chemical compound [H+].[H+].O.O.O.O.[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O MKTRXTLKNXLULX-UHFFFAOYSA-P 0.000 claims abstract description 22
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 17
- 239000002994 raw material Substances 0.000 claims abstract description 12
- 239000006185 dispersion Substances 0.000 claims description 16
- 239000005995 Aluminium silicate Substances 0.000 claims description 15
- 235000012211 aluminium silicate Nutrition 0.000 claims description 15
- 239000000440 bentonite Substances 0.000 claims description 15
- 229910000278 bentonite Inorganic materials 0.000 claims description 15
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 15
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 15
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 14
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 claims description 14
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 14
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 14
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 14
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 14
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 14
- 239000000194 fatty acid Substances 0.000 claims description 14
- 229930195729 fatty acid Natural products 0.000 claims description 14
- 150000004665 fatty acids Chemical class 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 14
- 239000002480 mineral oil Substances 0.000 claims description 14
- 235000010446 mineral oil Nutrition 0.000 claims description 14
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 claims description 14
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 14
- -1 polydimethylsiloxane Polymers 0.000 claims description 14
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 14
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 14
- 239000004841 bisphenol A epoxy resin Substances 0.000 claims description 10
- 239000004593 Epoxy Substances 0.000 claims description 7
- QGBSISYHAICWAH-UHFFFAOYSA-N dicyandiamide Chemical group NC(N)=NC#N QGBSISYHAICWAH-UHFFFAOYSA-N 0.000 claims description 7
- 238000005507 spraying Methods 0.000 claims description 7
- 230000009970 fire resistant effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 239000007769 metal material Substances 0.000 abstract description 4
- 239000002440 industrial waste Substances 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 26
- 239000010883 coal ash Substances 0.000 description 26
- 238000006243 chemical reaction Methods 0.000 description 17
- 239000011268 mixed slurry Substances 0.000 description 16
- 239000000377 silicon dioxide Substances 0.000 description 13
- 238000001027 hydrothermal synthesis Methods 0.000 description 12
- 235000012239 silicon dioxide Nutrition 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 239000000463 material Substances 0.000 description 7
- 230000035484 reaction time Effects 0.000 description 7
- 238000001035 drying Methods 0.000 description 6
- 238000001914 filtration Methods 0.000 description 6
- 239000011499 joint compound Substances 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- XJKVPKYVPCWHFO-UHFFFAOYSA-N silicon;hydrate Chemical compound O.[Si] XJKVPKYVPCWHFO-UHFFFAOYSA-N 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 238000005406 washing Methods 0.000 description 6
- 229910000838 Al alloy Inorganic materials 0.000 description 5
- 239000003063 flame retardant Substances 0.000 description 5
- 239000003973 paint Substances 0.000 description 5
- 239000003245 coal Substances 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/02—Cages, i.e. cars
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- 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
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- 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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a fireproof elevator, which comprises a lift car and a hoistway, wherein the lift car comprises a body and a fireproof coating arranged on the surface of the body; the body is made of a metal material; the fireproof coating is mainly prepared from the following raw materials in parts by weight: 50-80 parts of calcium silicate hydrate, 20-30 parts of epoxy resin, 3-10 parts of cross-linking agent, 2-5 parts of flatting agent, 2-10 parts of defoaming agent and 5-10 parts of additive; wherein the calcium silicate hydrate is a mixture of xonotlite and tobermorite, and the mass ratio of the xonotlite to the tobermorite is 3-5: 5-7. According to the invention, the mixture of xonotlite and tobermorite with excellent thermal stability is used as a main fireproof component, and the fireproof coating with the fireproof temperature of 800-1000 ℃ is prepared, so that the fireproof effect can be effectively realized, and the safety of people taking the elevator can be guaranteed; the calcium silicate hydrate is prepared from industrial wastes, so that the cost is low; the preparation method is simple.
Description
Technical Field
The invention relates to the field of elevators, in particular to a fireproof elevator and a preparation method thereof.
Background
An elevator is a motor-powered vertical lift equipped with a box-like car for use in multi-story buildings for carrying people or cargo. The vertical lift elevator has a car that runs between at least two vertical rows of rigid guide rails or guide rails with an angle of inclination of less than 15 °. The size and the structural form of the car are convenient for passengers to access or load and unload goods. It is customary to use elevators as a generic term for vertical transport means in buildings, irrespective of their drive mode.
The common elevator generally has no fire prevention measures, and is easy to cause safety accidents when a fire disaster happens. In recent years, some enterprises have also studied fireproof elevators. Patent application CN201510840217.8 discloses a fireproof elevator, which is provided with a ceramic layer on the surface of the car body, and a fireproof coating on the surface of the ceramic layer; however, the ceramic layer is complicated to prepare; the preparation method of the fireproof elevator is complex; and the required materials are various, and the preparation cost is high. Therefore, there is a need for improved fire-retardant coating techniques.
Disclosure of Invention
The invention aims to solve the technical problem of providing a fireproof elevator which has the advantages of simple preparation method, low preparation cost, tight combination and good fireproof performance.
In order to solve the technical problems and achieve the corresponding technical effects, the invention provides a fireproof elevator, which comprises a car and a hoistway, wherein the car comprises a body and a fireproof coating arranged on the surface of the body; the body is made of a metal material;
the fireproof coating is mainly prepared from the following raw materials in parts by weight: 50-80 parts of calcium silicate hydrate, 20-30 parts of epoxy resin, 5-10 parts of cross-linking agent, 2-5 parts of flatting agent, 5-10 parts of defoaming agent and 5-10 parts of additive;
wherein the calcium silicate hydrate is a mixture of xonotlite and tobermorite, and the mass ratio of the xonotlite to the tobermorite is 3-5: 5-7.
As an improvement of the above technical scheme, the epoxy resin is bisphenol a epoxy resin; the cross-linking agent is dicyandiamide epoxy cross-linking agent.
As an improvement of the technical scheme, the additive is a mixture of kaolin and bentonite, wherein the kaolin: bentonite 3: 1.
As an improvement of the technical scheme, the flatting agent is a mixture of polydimethylsiloxane and carboxymethyl cellulose, wherein the mass ratio of polydimethylsiloxane: carboxymethyl cellulose ═ 2: 1.
In an improvement of the above technical solution, the defoaming agent is a mixture of hard fatty acid, mineral oil and nonylphenol polyoxyethylene ether, wherein the ratio of hard fatty acid: mineral oil: nonylphenol polyoxyethylene ether ═ 1:1: 1.
As an improvement of the technical scheme, the thickness of the fireproof coating is 0.1-2 mm.
As an improvement of the technical scheme, the fireproof coating is prepared by the following method:
adding a defoaming agent and a cross-linking agent into epoxy resin, and dispersing for 5-10 minutes to obtain a first dispersion liquid;
adding the additive and the calcium silicate hydrate into the first dispersion liquid, and dispersing for 15-20 minutes to obtain a coating;
spraying the coating on the surface of the car body; and baking at the temperature of 120-150 ℃ for 10-30 minutes to obtain the fireproof coating.
As an improvement of the technical scheme, the calcium silicate hydrate is prepared by the following method:
(1) mixing red mud, coal ash, silicon dioxide and water to obtain mixed slurry; wherein the mass ratio of the red mud to the coal ash is 1-2: 1;
(2) and adding the mixed slurry into a reaction kettle, carrying out hydrothermal reaction, and filtering, washing and drying after the reaction to obtain the calcium silicate hydrate.
As an improvement of the technical scheme, the mass ratio of the total mass of the coal ash and the red mud to the silicon dioxide is 1: 1-1.5; the slurry liquid-solid ratio is 30:1 mL/g.
As an improvement of the technical scheme, the hydrothermal reaction temperature is 190-300 ℃, and the reaction time is 1-4 h.
The invention provides a fireproof elevator, which adopts a mixture of tobermorite and xonotlite as a main fireproof component to prepare a fireproof coating; and is coated on the surface of the car body. The beneficial effects of the implementation of the invention are as follows:
(1) the invention adopts the mixture of xonotlite and tobermorite with excellent thermal stability as the main fireproof component, and prepares the fireproof coating with the fireproof temperature of 800-.
(2) The fireproof coating adopts epoxy resin as a substrate, can be well adhered to the surface of a metal matrix, is supplemented with a reasonable coating formula, can be stably and uniformly adhered to the surface of the car body, and is not easy to fall off.
(3) The calcium silicate hydrate is prepared from industrial wastes, so that the cost is low; the preparation method is simple.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below.
The invention provides a fireproof elevator which comprises a car and a hoistway, wherein the car comprises a body and a fireproof coating arranged on the surface of the body.
The body is made of a metal material; the metal material is preferably an aluminum alloy, but is not limited thereto.
The fireproof coating is mainly prepared from the following raw materials in parts by weight: 50-80 parts of calcium silicate hydrate, 20-30 parts of epoxy resin, 3-10 parts of cross-linking agent, 2-5 parts of flatting agent, 2-10 parts of defoaming agent and 5-10 parts of additive;
wherein, the calcium silicate hydrate is a general name of a ternary compound existing in a CaO-SiO2-H2O system, and the calcium silicate hydrate refers to a mixture of tobermorite and xonotlite; tolberite (5 CaO.6SiO 2.5H2O) is hydrated calcium silicate with higher crystallinity, and has low heat conductivity, high product strength and strong thermal stability; xonotlite (6 CaO.6SiO 2. H2O) is often a needle-like or fibrous crystal with good thermal stability; adopting xonotlite and tobermorite as main fireproof materials; can resist the conventional fire and protect the safety of people taking the elevator. Preferably, the mass ratio of the xonotlite to the tobermorite is (3-5): (5-7); further preferably (4-5) to (5-6); the mixture of xonotlite and tobermorite has good fireproof performance, and the preparation cost is low, so that the preparation method is easy to popularize. Preferably, the particle size of the hydrated calcium silicate is 10-40 μm; the xonotlite and tobermorite whisker are wound to form a spherical object, the particle size of the spherical object is 10-40 mu m, and the calcium silicate hydrate in the particle size range has stronger thermal stability and is more suitable. The calcium silicate hydrate is added in 50-80 weight portions, preferably 60-75 weight portions.
The base material of the fireproof coating is epoxy resin; the epoxy resin paint has good bonding property with a metal matrix; meanwhile, the hydrated calcium silicate material can be well dispersed in the epoxy resin paint. The hydrated calcium silicate material has a porous structure and strong adsorption force on free water, and if the water-based paint is adopted, the hydrated calcium silicate material can adsorb water serving as a solvent, so that the viscosity of the paint is reduced; therefore, the invention adopts the epoxy resin as the base material. Preferably, the epoxy resin in the invention is bisphenol A epoxy resin; the cross-linking agent is dicyandiamide epoxy cross-linking agent. The bisphenol A epoxy resin has strong adhesion to metal and certain chemical corrosion resistance; the preparation method of the bisphenol A epoxy resin is simple and the preparation cost is low; the addition amount of the epoxy resin is 20-30 parts, preferably 25-30 parts; the amount of the crosslinking agent added is 3 to 10 parts, preferably 5 to 10 parts, and more preferably 5 to 8 parts.
Wherein, the flatting agent is a mixture of polydimethylsiloxane and carboxymethyl cellulose, and the mass ratio of polydimethylsiloxane: carboxymethyl cellulose 2: 1; the fireproof coating can be effectively promoted to be distributed on the surface of the car body. The addition weight part of the leveling agent is 2-5 parts.
Wherein the defoaming agent is a mixture of hard fatty acid, mineral oil and nonylphenol polyoxyethylene ether, and the mass ratio of the hard fatty acid: mineral oil: nonylphenol polyoxyethylene ether ═ 1:1: 1. The defoaming agent can effectively reduce the surface tension of the coating system, so that other components in the coating are uniformly dispersed in the coating, and meanwhile, the coating can be well combined on the surface of the car body. The addition weight portion of the defoaming agent is 2 to 10 portions, preferably 5 to 10 portions, and further preferably 5 to 8 portions.
Preferably, the additive is a mixture of kaolin and bentonite, wherein the ratio of kaolin: bentonite 3: 1. The kaolin and the bentonite are added, so that the viscosity of the coating is improved, the calcium silicate hydrate is promoted to be uniformly distributed in the coating, and the fireproof effect of the coating is effectively exerted. The additive is added in 5-10 parts by weight, preferably 5-8 parts by weight. Through the synergistic effect of the raw materials in the formula components, the effective component calcium silicate hydrate can be effectively dispersed in the fireproof coating, and is firmly combined on the surface of the car body after coating to form a fireproof coating with strong adhesion, so that the fireproof effect is exerted.
Preferably, the fireproof coating is mainly prepared from the following raw materials in parts by weight: 60-75 parts of calcium silicate hydrate, 25-30 parts of bisphenol A epoxy resin, 5-8 parts of a cross-linking agent, 2-5 parts of a flatting agent, 5-7 parts of a defoaming agent and 5-8 parts of an additive; the fireproof coating can be firmly combined with the car body.
Preferably, the thickness of the fireproof coating is 0.1-2mm, and more preferably 0.5-2 mm. Thinner fire-resistant coatings do not take advantage of their thermal insulation, while coatings that are too thick suffer from a plethora of functions.
Preferably, the preparation method of the fireproof coating comprises the following steps:
(1) adding a defoaming agent and a cross-linking agent into epoxy resin, and dispersing for 5-10 minutes to obtain a first dispersion liquid;
(2) adding the additive and the calcium silicate hydrate into the first dispersion liquid, and dispersing for 15-20 minutes to obtain the fireproof coating;
preferably, in the step (1) and the step (2), the dispersion temperature is less than or equal to 60 ℃; is beneficial to the dispersion of the effective components.
(3) Spraying fireproof paint on the surface of the car body; and baking at the temperature of 120-150 ℃ for 10-30 minutes to obtain the fireproof coating. The fireproof coating can be firmly attached to the surface of the car body by adopting a thermosetting process.
Preferably, the preparation method of the calcium silicate hydrate comprises the following steps:
(1) mixing red mud, coal ash, silicon dioxide and water to obtain mixed slurry;
wherein the coal ash is a mixture of fluidized bed coal ash and pulverized coal ash; fluidized bed and pulverized coal furnace are widely used in power plant combustion furnace, and the coal ash formed after the combustion of fluidized bed and pulverized coal furnace is solid waste, often piled up like a mountain, and difficult to treat. Preferably, the fluidized bed coal ash of the present invention: coal powder furnace coal ash is 2: 1; the fluidized bed coal ash has higher calcium content and can be used as a calcium raw material, and the coal powder coal ash is amorphous due to higher combustion temperature, so that the energy required by the reaction can be reduced, and the manufacturing cost is saved.
Wherein the red mud is sintering process red mud; the red mud obtained by the sintering method contains a large amount of CaO which can be used as a calcium source; the reaction is carried out. Preferably, the mass ratio of the red mud to the coal ash is 1-2: 1. The red mud has smaller granularity and stronger reaction activity; the proportion can react to form calcium silicate hydrate with better thermal stability.
Preferably, the mass ratio of the total mass of the coal ash and the red mud to the silica is 1: 1-1.5; a slight excess of silica raw material may increase the content of xonotlite in the calcium silicate hydrate prepared. Preferably, the slurry liquid-solid ratio is 30:1 mL/g; the reaction conditions are favorable for improving the yield of xonotlite in the calcium silicate hydrate product.
(2) And adding the mixed slurry into a reaction kettle, carrying out hydrothermal reaction, and filtering, washing and drying after the reaction to obtain the calcium silicate hydrate.
Wherein the hydrothermal reaction temperature is 190-300 ℃, and the reaction time is 1-4 h; the preferable reaction temperature is 200-300 ℃, and the reaction time is 2-3 h; in the temperature range, the formation of whiskers can be facilitated, and a calcium silicate hydrate product with a low heat conduction coefficient can be prepared.
The features of the invention are further described below in connection with specific embodiments:
example 1
The fireproof elevator comprises a car and a hoistway; the lift car comprises a body and a fireproof coating arranged on the surface of the body;
the body is made of aluminum alloy;
the fireproof coating is mainly prepared from the following raw materials in parts by weight: 75 parts of calcium silicate hydrate, 20 parts of epoxy resin, 3 parts of cross-linking agent, 2 parts of flatting agent, 5 parts of defoaming agent and 5 parts of additive;
wherein the epoxy resin is bisphenol A epoxy resin; the cross-linking agent is dicyandiamide epoxy cross-linking agent; the additive is a mixture of kaolin and bentonite, wherein the kaolin: 3:1 of bentonite; the flatting agent is a mixture of polydimethylsiloxane and carboxymethyl cellulose, wherein the mass ratio of polydimethylsiloxane: carboxymethyl cellulose 2: 1; the defoaming agent is a mixture of hard fatty acid, mineral oil and nonylphenol polyoxyethylene ether, wherein the mass ratio of the hard fatty acid: mineral oil: nonylphenol polyoxyethylene ether ═ 1:1: 1.
Wherein the calcium silicate hydrate is a mixture of xonotlite and tobermorite, and the mass ratio of the xonotlite to the tobermorite is 5: 5.
The fireproof coating is prepared by the following method:
adding a defoaming agent and a cross-linking agent into epoxy resin, and dispersing for 5 minutes at 45 ℃ to obtain a first dispersion liquid;
adding the additive and the calcium silicate hydrate into the first dispersion liquid, and dispersing at 50 ℃ for 20 minutes to obtain a coating;
spraying the coating on the surface of the car body; and baked at 150 ℃ for 15 minutes to obtain a fire retardant coating with a thickness of 1 mm.
Wherein, the hydrated calcium silicate is prepared by the following method:
(1) mixing red mud, coal ash, silicon dioxide and water to obtain mixed slurry; wherein the mass ratio of the red mud to the coal ash is 2: 1; the mass ratio of the total mass of the coal ash and the red mud to the silicon dioxide is 1:1.2, and the liquid-solid ratio of the mixed slurry is 30:1 mL/g.
(2) And adding the mixed slurry into a reaction kettle, carrying out hydrothermal reaction, and filtering, washing and drying after the reaction to obtain the calcium silicate hydrate. Wherein the hydrothermal reaction temperature is 210 ℃, and the reaction time is 3 h.
Example 2
The fireproof elevator comprises a car and a hoistway; the lift car comprises a body and a fireproof coating arranged on the surface of the body;
the body is made of aluminum alloy;
the fireproof coating is mainly prepared from the following raw materials in parts by weight: 50 parts of calcium silicate hydrate, 25 parts of epoxy resin, 8 parts of cross-linking agent, 5 parts of flatting agent, 7 parts of defoaming agent and 5 parts of additive;
wherein the epoxy resin is bisphenol A epoxy resin; the cross-linking agent is dicyandiamide epoxy cross-linking agent; the additive is a mixture of kaolin and bentonite, wherein the kaolin: 3:1 of bentonite; the flatting agent is a mixture of polydimethylsiloxane and carboxymethyl cellulose, wherein the mass ratio of polydimethylsiloxane: carboxymethyl cellulose 2: 1; the defoaming agent is a mixture of hard fatty acid, mineral oil and nonylphenol polyoxyethylene ether, wherein the mass ratio of the hard fatty acid: mineral oil: nonylphenol polyoxyethylene ether ═ 1:1: 1.
Wherein the calcium silicate hydrate is a mixture of xonotlite and tobermorite, and the mass ratio of the xonotlite to the tobermorite is 2: 1.
The fireproof coating is prepared by the following method:
adding a defoaming agent and a cross-linking agent into epoxy resin, and dispersing at 40 ℃ for 10 minutes to obtain a first dispersion liquid;
adding the additive and the calcium silicate hydrate into the first dispersion liquid, and dispersing at 40 ℃ for 20 minutes to obtain a coating;
spraying the coating on the surface of the car body; and baked at 120 ℃ for 20 minutes to obtain a fire retardant coating with a thickness of 2 mm.
Wherein, the hydrated calcium silicate is prepared by the following method:
(1) mixing red mud, coal ash, silicon dioxide and water to obtain mixed slurry; wherein the mass ratio of the red mud to the coal ash is 1: 1; the mass ratio of the total mass of the coal ash and the red mud to the silicon dioxide is 1:1, and the liquid-solid ratio of the mixed slurry is 30:1 mL/g.
(2) And adding the mixed slurry into a reaction kettle, carrying out hydrothermal reaction, and filtering, washing and drying after the reaction to obtain the calcium silicate hydrate. Wherein the hydrothermal reaction temperature is 300 ℃, and the reaction time is 1 h.
Example 3
The fireproof elevator comprises a car and a hoistway; the lift car comprises a body and a fireproof coating arranged on the surface of the body;
the body is made of aluminum alloy;
the fireproof coating is mainly prepared from the following raw materials in parts by weight: 60 parts of calcium silicate hydrate, 25 parts of epoxy resin, 5 parts of cross-linking agent, 5 parts of flatting agent, 5 parts of defoaming agent and 5 parts of additive;
wherein the epoxy resin is bisphenol A epoxy resin; the cross-linking agent is dicyandiamide epoxy cross-linking agent; the additive is a mixture of kaolin and bentonite, wherein the kaolin: 3:1 of bentonite; the flatting agent is a mixture of polydimethylsiloxane and carboxymethyl cellulose, wherein the mass ratio of polydimethylsiloxane: carboxymethyl cellulose 2: 1; the defoaming agent is a mixture of hard fatty acid, mineral oil and nonylphenol polyoxyethylene ether, wherein the mass ratio of the hard fatty acid: mineral oil: nonylphenol polyoxyethylene ether ═ 1:1: 1.
Wherein the calcium silicate hydrate is a mixture of xonotlite and tobermorite, and the mass ratio of the xonotlite to the tobermorite is 3: 4.
The fireproof coating is prepared by the following method:
adding a defoaming agent and a cross-linking agent into epoxy resin, and dispersing for 5 minutes at 50 ℃ to obtain a first dispersion liquid;
adding the additive and the calcium silicate hydrate into the first dispersion liquid, and dispersing at 50 ℃ for 20 minutes to obtain a coating;
spraying the coating on the surface of the car body; and baked at 120 ℃ for 20 minutes to obtain a fire retardant coating with a thickness of 2 mm.
Wherein, the hydrated calcium silicate is prepared by the following method:
(1) mixing red mud, coal ash, silicon dioxide and water to obtain mixed slurry; wherein the mass ratio of the red mud to the coal ash is 1.5: 1; the mass ratio of the total mass of the coal ash and the red mud to the silicon dioxide is 1:1.5, and the liquid-solid ratio of the mixed slurry is 30:1 mL/g.
(2) And adding the mixed slurry into a reaction kettle, carrying out hydrothermal reaction, and filtering, washing and drying after the reaction to obtain the calcium silicate hydrate. Wherein the hydrothermal reaction temperature is 250 ℃, and the reaction time is 2.5 h.
Example 4
The fireproof elevator comprises a car and a hoistway; the lift car comprises a body and a fireproof coating arranged on the surface of the body;
the body is made of aluminum alloy;
the fireproof coating is mainly prepared from the following raw materials in parts by weight: 65 parts of calcium silicate hydrate, 28 parts of epoxy resin, 6 parts of a cross-linking agent, 4 parts of a leveling agent, 6 parts of a defoaming agent and 6 parts of an additive;
wherein the epoxy resin is bisphenol A epoxy resin; the cross-linking agent is dicyandiamide epoxy cross-linking agent; the additive is a mixture of kaolin and bentonite, wherein the kaolin: 3:1 of bentonite; the flatting agent is a mixture of polydimethylsiloxane and carboxymethyl cellulose, wherein the mass ratio of polydimethylsiloxane: carboxymethyl cellulose 2: 1; the defoaming agent is a mixture of hard fatty acid, mineral oil and nonylphenol polyoxyethylene ether, wherein the mass ratio of the hard fatty acid: mineral oil: nonylphenol polyoxyethylene ether ═ 1:1: 1.
Wherein the calcium silicate hydrate is a mixture of xonotlite and tobermorite, and the mass ratio of the xonotlite to the tobermorite is 5: 3.
The fireproof coating is prepared by the following method:
adding a defoaming agent and a cross-linking agent into epoxy resin, and dispersing for 5 minutes at 50 ℃ to obtain a first dispersion liquid;
adding the additive and the calcium silicate hydrate into the first dispersion liquid, and dispersing for 15 minutes at 50 ℃ to obtain a coating;
spraying the coating on the surface of the car body; and baked at 140 ℃ for 15 minutes to obtain a fire retardant coating with a thickness of 1.5 mm.
Wherein, the hydrated calcium silicate is prepared by the following method:
(1) mixing red mud, coal ash, silicon dioxide and water to obtain mixed slurry; wherein the mass ratio of the red mud to the coal ash is 1.5: 1; the mass ratio of the total mass of the coal ash and the red mud to the silicon dioxide is 1:1.2, and the liquid-solid ratio of the mixed slurry is 30:1 mL/g.
(2) And adding the mixed slurry into a reaction kettle, carrying out hydrothermal reaction, and filtering, washing and drying after the reaction to obtain the calcium silicate hydrate. Wherein the hydrothermal reaction temperature is 250 ℃, and the reaction time is 2.5 h.
The fireproof elevator in the embodiment is subjected to technical detection, and the results are shown in the following table, and it can be seen from the table that the fireproof temperature of the fireproof elevator can reach over 800 ℃, so that the fireproof elevator can meet the fireproof requirements of general elevators.
| Example 1 | Example 2 | Example 3 | Example 4 | |
| Refractory temperature/. degree.C | 980 | 800 | 900 | 1150 |
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited by the scope of the appended claims.
Claims (5)
1. A fireproof elevator comprises a car and a hoistway, and is characterized in that the car comprises a body and a fireproof coating arranged on the surface of the body;
the fireproof coating is mainly prepared from the following raw materials in parts by weight: 50-80 parts of calcium silicate hydrate, 20-30 parts of epoxy resin, 3-10 parts of cross-linking agent, 2-5 parts of flatting agent, 2-10 parts of defoaming agent and 5-10 parts of additive;
wherein the calcium silicate hydrate is a mixture of xonotlite and tobermorite, and the mass ratio of the xonotlite to the tobermorite is 3-5: 5-7;
the epoxy resin is bisphenol A epoxy resin, and the cross-linking agent is dicyandiamide epoxy cross-linking agent;
the additive is a mixture of kaolin and bentonite, wherein the kaolin: bentonite 3: 1.
2. A fire-resistant elevator according to claim 1, characterized in that the leveling agent is a mixture of polydimethylsiloxane and carboxymethylcellulose, and the ratio of polydimethylsiloxane: carboxymethyl cellulose ═ 2: 1.
3. A fire-resistant elevator according to claim 1, wherein the defoaming agent is a mixture of hard fatty acid, mineral oil, nonylphenol polyoxyethylene ether, hard fatty acid: mineral oil: nonylphenol polyoxyethylene ether ═ 1:1: 1.
4. Fireproof elevator according to any of claims 1 to 3, wherein the thickness of the fireproof coating is 0.1-2 mm.
5. Fireproof elevator according to claim 1, characterized in that the fireproof coating is produced by the following method:
adding a defoaming agent and a cross-linking agent into epoxy resin, and dispersing for 5-10 minutes to obtain a first dispersion liquid;
adding the additive and the calcium silicate hydrate into the first dispersion liquid, and dispersing for 15-20 minutes to obtain a coating;
spraying the coating on the surface of the car body; and baking at the temperature of 120-150 ℃ for 10-30 minutes to obtain the fireproof coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811189187.9A CN109517477B (en) | 2018-10-12 | 2018-10-12 | Fireproof elevator and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811189187.9A CN109517477B (en) | 2018-10-12 | 2018-10-12 | Fireproof elevator and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109517477A CN109517477A (en) | 2019-03-26 |
| CN109517477B true CN109517477B (en) | 2021-03-19 |
Family
ID=65772483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811189187.9A Active CN109517477B (en) | 2018-10-12 | 2018-10-12 | Fireproof elevator and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109517477B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4826534A (en) * | 1987-10-22 | 1989-05-02 | Calvin Shubow | Metallizing compositions, metal bonded structures and methods of metallizing and/or fireproofing |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4157309B2 (en) * | 2002-02-28 | 2008-10-01 | 大阪油脂工業株式会社 | Fireproof structure |
| EP1507819B1 (en) * | 2002-05-22 | 2007-12-12 | BASF Construction Polymers GmbH | Use of water-soluble polymers as auxiliary drying agents for the production of polymer dispersing agents |
| CN104861840B (en) * | 2015-06-05 | 2017-03-08 | 霸州市金昌环保材料有限公司 | Thin spray powdery paints and preparation method thereof |
| CN105295713A (en) * | 2015-11-27 | 2016-02-03 | 佛山住友富士电梯有限公司 | Special elevator fire-retardant paint |
| CN107162010B (en) * | 2017-05-25 | 2019-09-20 | 内蒙古仁创沙漠资源利用研究院有限公司 | The hydrated calcium silicate for synthesizing the method for hydrated calcium silicate and being synthesized by this method |
-
2018
- 2018-10-12 CN CN201811189187.9A patent/CN109517477B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4826534A (en) * | 1987-10-22 | 1989-05-02 | Calvin Shubow | Metallizing compositions, metal bonded structures and methods of metallizing and/or fireproofing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109517477A (en) | 2019-03-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101857756B (en) | Fire-retardant paint with steel structure | |
| CN110218504B (en) | Steel structure anticorrosive paint | |
| CN114525078B (en) | Water-based modified organic silicon high-temperature-resistant anticorrosive paint and preparation method thereof | |
| CN1325579C (en) | High-temperature thermal-insulation anticorrosive nano coating and its preparing method | |
| CN102249708B (en) | Preparation method of anticorrosion and fireproof integrated coating for thick steel structure | |
| CN101468906B (en) | SiO2 enriched nano composite inorganic flame-retardant heat insulating thermal preserving board and manufacturing process thereof | |
| CN112897966B (en) | Calcium carbonate-based inorganic coating and preparation and use methods thereof | |
| CN102850905B (en) | Aqueous expansion-type steel structure fireproof paint and preparation method thereof | |
| KR20080048399A (en) | Inorganic High Hardness Coating Composition | |
| CN112680003A (en) | Inorganic heat-insulating coating and preparation method thereof | |
| CN110229587B (en) | Steel structure anticorrosive paint | |
| CN105802421B (en) | One kind damping fireproof coating and preparation method thereof | |
| CN103073969A (en) | Epoxy resin antirust paint and preparation method thereof | |
| CN109517477B (en) | Fireproof elevator and preparation method thereof | |
| CN116285577B (en) | Environment-friendly steel structure anticorrosive paint and preparation method thereof | |
| CN106893452A (en) | Nano rare earth modified epoxy anticorrosive paint and preparation method thereof | |
| CN105623532A (en) | High-temperature-resistant inorganic composite adhesive and preparation method thereof | |
| CN103497299B (en) | Preparing method of norganic nanoparticle enhanced inflaming retarding polyurethane material | |
| CN109971223B (en) | A kind of environment-friendly fireproof coating prepared from the solid waste of iron and steel industry as raw material | |
| CN111171657A (en) | Energy-saving environment-friendly fireproof coating and preparation method thereof | |
| CN101250723A (en) | Carbon anode anti-oxidation layer for aluminum electrolysis, preparation method and coating method thereof | |
| CN103333581A (en) | Nano cerium oxide/epoxy composite paint and preparation method thereof | |
| CN118165595A (en) | Thermal insulation coating and application thereof | |
| CN109571715B (en) | Elevator and preparation method thereof | |
| CN115925257A (en) | Anti-adhesion corrosion-resistant inorganic glass ceramic glaze coating and processing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |