CN110450501B - Multilayer ceramic tissue paper capable of realizing gradient temperature resistance - Google Patents

Multilayer ceramic tissue paper capable of realizing gradient temperature resistance Download PDF

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Publication number
CN110450501B
CN110450501B CN201910805249.2A CN201910805249A CN110450501B CN 110450501 B CN110450501 B CN 110450501B CN 201910805249 A CN201910805249 A CN 201910805249A CN 110450501 B CN110450501 B CN 110450501B
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ceramic
zirconium
cotton paper
temperature resistance
layer
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CN110450501A (en
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陈照峰
叶信立
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Suzhou Superlong Aviation Heat Resistance Material Technology Co Ltd
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Suzhou Superlong Aviation Heat Resistance Material Technology Co Ltd
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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
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B32B29/002—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B29/005—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material next to another layer of paper or cardboard 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J1/00—Adhesives based on inorganic constituents
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J1/00—Adhesives based on inorganic constituents
    • C09J1/02—Adhesives based on inorganic constituents containing water-soluble alkali silicates
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/04—Non-macromolecular additives inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/08—Macromolecular additives
    • 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

Abstract

The invention discloses a multilayer ceramic tissue paper capable of realizing gradient temperature resistance, which is a heterogeneous material and is composed of a single layer of ceramic tissue paper, wherein ceramic fibers are horizontally distributed in the single layer and do not longitudinally penetrate through the fibers. The zirconium latex content is distributed in a gradient manner along the thickness direction, the zirconium latex content is gradually reduced from the surface layer to the inner layer, different zirconium latex contents correspond to heat preservation in different temperature intervals, the material cost is reduced, and energy conservation and emission reduction are realized. The composite adhesive is added between the tissue papers, when the hot side temperature is higher, the low-melting-point glass fiber in the composite adhesive is melted and acts with the inorganic adhesive together, the seamless bonding between layers is realized, and meanwhile, the zirconium latex is changed into the zirconium oxide fiber after being heated and is coated around the ceramic fiber, so that the temperature resistance of the tissue papers is improved, and the integral high-temperature structural strength of the tissue papers is also improved.

Description

Multilayer ceramic tissue paper capable of realizing gradient temperature resistance
Technical Field
The invention relates to a multilayer ceramic tissue paper, in particular to a multilayer ceramic tissue paper capable of realizing gradient temperature resistance.
Background
The ceramic fiber is a fibrous light refractory material, the main chemical component of which is aluminum silicate, the fibrous refractory material is light, has the advantages of light weight, low thermal conductivity, small specific heat capacity, high temperature resistance, good thermal stability, mechanical shock resistance and the like, and forms SiO2:Al2O3=1～1.2，Al2O3The content is higher, the heat resistance is better, the aluminum silicate fiber can resist the high temperature of 1000-1500 ℃, the fiber has the advantages of high-temperature oxidation resistance, high-temperature strength, high-temperature creep resistance and the like, is rapidly developed as a fibrous heat insulation material for high temperature, is known as a high-efficiency energy-saving material, has the beauty of a fifth energy product, and is a product with wide development prospect at present.
The ceramic fiber cotton paper is made up by using ceramic fiber cotton, binding agent and additive through the processes of pulping, forming, solidifying and drying, etc. and adopting wet oblique long net forming process to produce ceramic fiber paper, firstly using pulping equipment of beater or fluffer to prepare pulp material in which the ceramic fiber is uniformly dispersed, utilizing centrifugal method and settling method to remove most of slag balls in the ceramic fiber, dewatering the pulp material on the oblique long net to form wet paper sheet, vacuum-pumping or pressing to narrow and drying, and solidifying the binding agent so as to obtain the invented ceramic fiber paper product. The ceramic fiber cotton paper is a secondary deep processing product with rapid development and high added value, has the characteristics of low heat conductivity coefficient, low heat storage, good heat insulation performance, thermal shock resistance, erosion resistance, good electrical insulation, good sound insulation performance, good mechanical strength, excellent elasticity and flexibility, convenience for processing and installation and the like, and is widely applied to industries such as metallurgy, petrifaction, ships, machinery, building materials and the like.
At present, a plurality of ceramic cotton products with different qualities exist in the market, the traditional ceramic cotton products can be in service for a long time at the temperature of about 800 ℃, once the temperature exceeds 1100 ℃, a great amount of crystallization phenomena occur to fiber crystals, a great amount of mullite crystals occur, the structure is changed, the performance is changed, and the ceramic cotton products cannot be in service for a long time at high temperature. In order to improve the temperature resistance of the ceramic wool, zirconia particles are generally added into fibers to improve the high-temperature service performance of the ceramic wool, but the zirconia particles are high in cost and cannot be applied on a large scale, and one end of a zirconium-containing ceramic wool product resists high temperature, but the temperature of the other end of the zirconium-containing ceramic wool product is reduced, so that heat preservation can be realized by using common ceramic wool, and resource waste is caused.
The Chinese invention patent with the application number of 201410017890.7 discloses a high-temperature resistant ceramic fiber board, which is characterized by being prepared from the following raw materials in parts by weight: 95-96 parts of aluminum silicate fiber and 1-2 parts of dispersant, wherein the component is Na2SiO3And CaCO3A mixture of (a); 3-4 parts of zirconium latex, wherein the component is ZrO2、Y2O3And H2O2A mixture of (a). The invention also provides a preparation method thereof, which comprises the steps of mixing and stirring the raw materials, wet vacuum forming, drying and processing, wherein the drying temperature is 110-120 ℃, and the time is 22-24 hours. The ceramic fiber board prepared by the method has the advantages of being capable of bearing high temperature of over 1100 ℃ without losing binding power, and has the disadvantages of increasing cost and causing resource waste because zirconium latex is uniformly distributed in the fiber board.
The Chinese patent with the application number of 201310437109.7 discloses an oxide ceramic fiber board, which comprises the following raw materials of silica sol, chopped fibers and a surfactant, wherein the mass ratio of the chopped fibers to the surfactant is 1000: 100-200: 1-10; the silica sol is formed by mixing ethyl orthosilicate, ethanol and water according to the mass ratio of 2-10: 1-9, and performing vacuum filtrationAnd (3) drying the wet blank and the gel, and calcining for 0.5-4 hours at 1200-1400 ℃. The invention can adjust the volume density (0.3 g/cm) of the ceramic fiber board by changing the concentration (5 wt% -20 wt%) of the silica sol3～0.7g/cm3) The method has simple process and environmental protection, can prepare the oxide ceramic fiber board with any size and shape, and has long-term use temperature as high as 1600 ℃. The method has the disadvantages that the wet blank is dried and calcined to form the final ceramic fiber board, the process is complex, and the formed board has unstable performance and more impurities.
The Chinese invention patent with the application number of 201510839308.X discloses a ceramic fiber heat-insulating plate, which is characterized by being prepared from the following raw materials in parts by weight: 3-5 parts of nano titanium dioxide, 4-9 parts of nano aluminum oxide, 2-8 parts of vanadium pentoxide, 5-7 parts of nano silicon carbide, 35-45 parts of micron silicon carbide, 1-5 parts of dispersing agent, 3-4 parts of zirconium latex, 4-8 parts of dolomite powder and 30-40 parts of micron aluminum oxide. The ceramic fiber heat insulation board has high infrared reflectivity, low volume density and high-temperature heat conductivity coefficient, excellent heat insulation performance and excellent breaking strength and can be used in the field of high-temperature heat insulation for a long time on the premise of meeting the requirement of high temperature resistance. The method has the defects that the component content of the ceramic fiber heat insulation board is complex, and the nanometer-scale raw materials are adopted, so that the material cost is greatly increased, and the popularization and the application are not facilitated.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a multilayer ceramic tissue paper capable of realizing gradient temperature resistance, so that the tissue paper can be in service for a long time under different temperature gradients.
The technical scheme adopted for realizing the purpose of the invention is as follows: a multilayer ceramic tissue paper capable of realizing gradient temperature resistance is a heterogeneous material and is characterized in that the total thickness of the tissue paper is 2-4mm, the tissue paper is composed of single-layer ceramic tissue paper, the thickness of the single-layer tissue paper is 0.2-0.5mm, a composite adhesive is added between layers, when the temperature of a hot surface is higher, low-melting-point glass fibers in the composite adhesive are melted and act together with an inorganic adhesive, and seamless bonding between the layers is realized.
Furthermore, the zirconium latex content in the tissue paper is distributed in a gradient manner along the thickness direction, the zirconium latex content on the surface layer is 15-20%, and gradually decreases towards the inner layer until the zirconium latex content on the innermost layer decreases to 0-2%; the single-layer tissue paper is formed by laying ceramic fibers distributed in the horizontal direction, the fibers do not penetrate through the Z axis, the average diameter of the ceramic fibers is 2-3 mu m and is normally distributed, the highest temperature resistance of the surface layer tissue paper is 1500-fold-resistant 1600 ℃, the highest temperature resistance of the innermost layer tissue paper is 1000-fold-resistant 1100 ℃, and the gradient change is realized along the thickness direction; the thermal conductivity coefficient at normal temperature is 0.025-0.035W/(m.K), and the thermal conductivity coefficient at 1100 ℃ is 0.080-0.100W/(m.K).
Further, the adhesive is a composite adhesive and is composed of 60-70% of an inorganic adhesive and 30-40% of low-melting-point glass fibers, wherein the inorganic adhesive is one or more of water glass, phosphate, methyl cellulose and silica sol and can stably exist in a high-temperature environment.
Further, the zirconium latex comprises 40-50% of ZrO according to the mass fraction ratio220-25% of Y2O3And 25-40% of H2O2，ZrO2、Y2O3And H2O2All are nano-scale particles with the particle diameter of 15-30nm and ZrO2、Y2O3Greatly improves the temperature resistance and the high-temperature stability of the ceramic wool.
Further, zirconium latex particles are uniformly adhered to the surface of the ceramic fiber, the heated zirconium latex particles are converted into zirconium oxide short fibers which are attached to the surface of the ceramic fiber, the average diameter of the zirconium oxide short fibers is 3-4 mu m, and the length of the zirconium oxide short fibers is 10-15 mu m.
The invention has the beneficial effects that: (1) the ceramic cotton paper disclosed by the invention can realize gradient temperature resistance, the zirconium latex is taken as a reinforcing phase, the zirconium latex is converted into zirconium oxide fibers after being heated, the strength of the cotton paper is increased while the temperature resistance of the cotton paper is improved, meanwhile, the zirconium latex has different contents and is distributed in a gradient manner along the thickness direction, the heat preservation in different temperature intervals is corresponded, the material cost is greatly reduced, and the energy conservation and emission reduction are realized; (2) the composite adhesive is adopted for bonding the single-layer tissue paper, and the glass fibers have lower melting points, so that the low-melting-point fibers can be melted after high-temperature treatment, and the molten liquid can flow into gaps between the layers, thereby realizing strong bonding between the tissue paper and improving the high-temperature strength of the ceramic tissue paper; (3) the single-layer ultrathin ceramic tissue paper is seamlessly bonded to form the ceramic tissue paper, the ceramic fibers are horizontally distributed in a single layer and do not longitudinally penetrate through the fibers, so that the overall thermal bridge of the tissue paper is greatly reduced, and the heat conductivity coefficient is greatly reduced.
Detailed Description
The present invention is further illustrated by the following examples, which are intended to be purely exemplary and are not intended to limit the scope of the invention, as various equivalent modifications of the invention will occur to those skilled in the art upon reading the present specification and which fall within the limits of the appended claims.
Example 1
A can realize multilayer ceramic tissue paper of gradient temperature resistant which characterized in that: the total thickness of the tissue paper is 2mm, the tissue paper is composed of a single-layer ceramic tissue paper, and the thickness of the single-layer tissue paper is 0.2 mm.
Furthermore, the zirconium latex content in the tissue paper is distributed in a gradient manner along the thickness direction, the zirconium latex content on the surface layer is 15 percent, and gradually decreases towards the inner layer until the zirconium latex content on the innermost layer decreases to 2 percent; the average diameter of the ceramic fibers is 3 mu m and is normally distributed, the highest temperature resistance of the surface layer tissue paper is 1500 ℃, the highest temperature resistance of the innermost layer tissue paper is 1000 ℃, and the ceramic fibers are in gradient change along the thickness direction; the thermal conductivity at normal temperature is 0.030W/(mK), and the thermal conductivity at 1100 ℃ is 0.100W/(mK).
Further, the adhesive is a composite adhesive and is composed of 60% of inorganic adhesive and 40% of low-melting-point glass fiber, and the inorganic adhesive is water glass and phosphate.
Further, the zirconium latex comprises 40% of ZrO according to the mass fraction ratio220% of Y2O3And 40% of H2O2Further, the average diameter of the zirconia short fibers is 4 μm, and the length of the zirconia short fibers is 15 μm.
Example 2
A can realize multilayer ceramic tissue paper of gradient temperature resistant which characterized in that: the total thickness of the tissue paper is 4mm, the tissue paper is composed of a single-layer ceramic tissue paper, and the thickness of the single-layer tissue paper is 0.5 mm.
Furthermore, the zirconium latex content in the tissue paper is distributed in a gradient manner along the thickness direction, the zirconium latex content on the surface layer is 20 percent, and the zirconium latex content gradually decreases towards the inner layer until the zirconium latex content on the innermost layer decreases to 0.1 percent; the average diameter of the ceramic fibers is 2.5 mu m, the ceramic fibers are normally distributed, the highest temperature resistance of the surface layer tissue paper is 1600 ℃, the highest temperature resistance of the innermost layer tissue paper is 1100 ℃, and the ceramic fibers are in gradient change along the thickness direction; the thermal conductivity at normal temperature is 0.029W/(mK), and the thermal conductivity at 1100 ℃ is 0.090W/(mK).
Further, the adhesive is a composite adhesive and is composed of 65% of inorganic adhesive and 350% of low-melting-point glass fiber, and the inorganic adhesive is phosphate, methyl cellulose and silica sol.
Further, the zirconium latex comprises 45% of ZrO according to the mass fraction ratio225% of Y2O3And 30% of H2O2。
Further, the average diameter of the zirconia short fibers is 3 mu m, and the length of the zirconia short fibers is 12 mu m.
The above description is only two specific embodiments of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made by using the design concept should fall within the scope of infringing the protection scope of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the protection scope of the technical solution of the present invention.

Claims (1)

1. The multilayer ceramic cotton paper capable of realizing gradient temperature resistance is a heterogeneous material, and is characterized in that the total thickness of the cotton paper is 2-4mm, the cotton paper is composed of single-layer ceramic cotton paper, the thickness of the single-layer cotton paper is 0.2-0.5mm, and adhesives are added among layers to realize seamless bonding; the zirconium latex content in the cotton paper is distributed in a gradient manner along the thickness direction, the zirconium latex content on the surface layer is 15-20%, the zirconium latex content gradually decreases towards the inner layer, and the zirconium latex content gradually decreases to 0-2% in the innermost layer; the single-layer cotton paper is formed by laying ceramic fibers distributed in the horizontal direction, the average diameter of the ceramic fibers is 2-3 mu m, the highest temperature resistance of the surface layer cotton paper is 1500-1600 ℃, and the highest temperature resistance of the innermost layer cotton paper is 1600 DEG CThe temperature resistance is 1000 ℃ and 1100 ℃, and the temperature changes in a gradient way along the thickness direction; the thermal conductivity coefficient at normal temperature is 0.028-0.030W/(m.K), and the thermal conductivity coefficient at 1100 ℃ is 0.080-0.100W/(m.K); the adhesive is a composite adhesive and comprises 60-70% of an inorganic adhesive and 30-40% of low-melting-point glass fibers, wherein the inorganic adhesive is one or more of water glass, phosphate, methyl cellulose and silica sol; the zirconium latex comprises 40-50% of ZrO according to mass fraction220-25% of Y2O3And 25-40% of H2O2，ZrO2And Y2O3Are all nano-scale particles, the particle size is 15-30 nm; the zirconia latex particles are uniformly adhered to the surface of the ceramic fiber, the heated zirconia latex particles can be converted into zirconia short fibers to be attached to the surface of the ceramic fiber, the average diameter of the zirconia short fibers is 3-4 mu m, and the length of the zirconia short fibers is 10-15 mu m.
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CN112063308B (en) * 2020-09-18 2022-09-02 山东鲁阳浩特高技术纤维有限公司 High-temperature-resistant inorganic binder and preparation method thereof

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US4273821A (en) * 1978-01-27 1981-06-16 Pedlow J Watson Fire protective tape
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US4273821A (en) * 1978-01-27 1981-06-16 Pedlow J Watson Fire protective tape
CN1671823A (en) * 2002-08-01 2005-09-21 陶瓷聚合体有限公司 Fire resistant silicone polymers combination
CN103168124A (en) * 2010-10-26 2013-06-19 3M创新有限公司 Method of firestopping a through-penetration using a fusible inorganic blended-fiber web

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