CN106676947A - Inorganic fire-resistant paper as well as preparation method and application thereof - Google Patents
Inorganic fire-resistant paper as well as preparation method and application thereof Download PDFInfo
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- CN106676947A CN106676947A CN201611095798.8A CN201611095798A CN106676947A CN 106676947 A CN106676947 A CN 106676947A CN 201611095798 A CN201611095798 A CN 201611095798A CN 106676947 A CN106676947 A CN 106676947A
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- hydroxyapatite
- inorganic refractory
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H15/00—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution
- D21H15/02—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/42—Coatings containing inorganic materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/4584—Coating or impregnating of particulate or fibrous ceramic material
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/85—Coating or impregnation with inorganic materials
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/36—Inorganic fibres or flakes
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H15/00—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution
- D21H15/02—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration
- D21H15/10—Composite fibres
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Paper (AREA)
Abstract
The invention relates to inorganic fire-resistant paper as well as a preparation method and application thereof. The inorganic fire-resistant paper comprises hydroxyapatite super-long nano wires and inorganic fiber. The hydroxyapatite super-long nano wires can be wrapped by the inorganic fiber by using a unique process, then slurry which is good in dispersibility can be prepared, and novel inorganic fire-resistant paper of a 'reinforced framework' structure of the inorganic fiber can be formed after the slurry is drained and molded. Compared with hydroxyapatite super-long nano wire fire-resistant paper of a single component, the inorganic fire-resistant paper provided by the invention is greatly improved in physical strength (tensile strength, breaking strength, folding strength and tearing strength), surface property (glossiness and smoothness), and the like, and the problem that the hydroxyapatite super-long nano wire fire-resistant paper of the single component is poor in physical strength can be effectively solved.
Description
Technical field
The invention belongs to novel inorganic incombustible paper field, and in particular to one kind uses hydroxyapatite overlong nanowire and nothing
The inorganic refractory paper that machine fiber is prepared as raw material.
Background technology
Paper is one of ancient Chinese four inventions, and the invention of paper is greatly promoted propagation and the hair of human culture and science and technology
Exhibition.Nowadays, paper has turned into mankind's routine work and the too busy to get away multipurpose product of life.Conventional paper is typically with trees or grass
The strings such as class are raw material and add some auxiliary agents and filler to manufacture paper with pulp to form, and pulping and papermaking processes produce serious dirty to environment
Dye；One deadly defect of traditional plant cellulose paper is inflammability, and books and paper document can be completely consumed in a fire,
This main cause that numerous paper relics damages disappear since being also many centuries.Asked based on the protrusion that conventional paper is faced
Topic, exploring the novel fire-resistant paper based on inorganic material just turns into an important research topic.Zhu Yingjie etc. is with hydroxyapatite
Overlong nanowire has invented a kind of novel hydroxyapatite overlong nanowire incombustible paper as raw material, and the incombustible paper has high flexible
Property, and (Zhu Yingjie, Lu Bingqiang, Chen Feng, high-flexibility high temperature resistant are non-ignitable to show good fire-retardant, fire resisting and high-temperature stability
Hydroxyapatite paper and preparation method thereof, patent No. ZL201310687363.2).But with hydroxyapatite overlong nanowire list
Incombustible paper physical strength performance prepared by one composition is relatively low, limits its application.
The content of the invention
It is an object of the invention to provide a kind of mechanical strength it is high, with the inorganic resistance to of good high temperature resistant and heat-proof quality
Touch paper and its application.
On the one hand, the present invention provides a kind of inorganic refractory paper, and the inorganic refractory paper includes hydroxyapatite overlength nanometer
Line and inorfil.It is preferred that in the inorganic refractory paper hydroxyapatite overlong nanowire mass percent >=40%, it is excellent
Elect 50~70wt% as.
The present invention first by hydroxyapatite overlong nanowire and inorfil be combined as primary raw material prepare it is inorganic resistance to
Touch paper.Wherein inorfil and hydroxyapatite nano line are well mixed, and part of hydroxyl apatite overlong nanowire is uniformly wrapped
It is overlying on inorfil surface.There is mechanical strength higher except inorfil, the hydroxyl on the inorfil surface is coated on
Apatite overlong nanowire obtains surface and contains great amount of hydroxy group, and hydrogen bond knot is easily formed between the hydroxyapatite overlong nanowire
Close, improve inorganic refractory paper mechanical strength outside, the inorfil as matrix (framework of steel reinforcement) be wrapped in it is described inorganic
The hydroxyapatite overlong nanowire with network structure of fiber surface forms special " reinforced concrete knot as " cement "
Structure ", greatly enhances the mechanical strength of inorganic refractory paper.The present invention is using inorfil as " framework of steel reinforcement " and hydroxyl
Base apatite overlong nanowire is compound to prepare inorganic refractory paper, can significantly improve the mechanical property of incombustible paper, can effectively solve
The low problem of single component hydroxyapatite overlong nanowire incombustible paper mechanical strength.
It is preferred that the inorganic refractory paper can also contain inorganic adhesive.Inorganic adhesive in the inorganic refractory paper
Mass percent in below 30wt%.
It is preferred that the inorganic adhesive includes but is not limited to silicates adhesive, aluminium salt class adhesive, phosphate
Class adhesive, borate family adhesive, Ludox adhesive and Alumina gel adhesive.
It is preferred that the hydroxyapatite overlong nanowire be by can in water with monodisperse status exist a diameter of 2
~100nm, length is received for the hydroxyapatite nano line of 50nm~100 μm assembles the two-dimensional network structure hydroxyapatite to be formed
Rice noodles or a diameter of 5~100nm, length are 20~2000 μm of hydroxyapatite overlong nanowire.
It is preferred that the inorfil includes but is not limited to glass fibre, carbon fiber, boron fibre, oxide fibre, silicon
Silicate fiber, silicon carbide fibre and metallic fiber, a diameter of 1~15 μm of the inorfil, length be 1~12mm.
On the other hand, write in fire-retardant, fire resisting, high temperature resistant, heat-insulated, fire resisting present invention also offers a kind of inorganic refractory paper
Application in the fields such as copy paper, special type fire paper.
The present invention adds nothing simultaneously by the use of inorfil as " framework of steel reinforcement " and hydroxyapatite overlong nanowire are compound
Machine adhesive improves the performance of incombustible paper, can effectively solve single component hydroxyapatite overlong nanowire incombustible paper mechanical strength
Low problem, the incombustible paper can be used as writing printing printing paper, calligraphy and drawing paper, high-temperature resistant label paper, flame-retardant paper, resistance to height
Warm paper and sheathing paper etc., have a good application prospect in fire-retardant, fire resisting, high temperature resistant and heat-insulated field.
Brief description of the drawings
Fig. 1：Scanning electron microscopy (SEM) figure：(a) glass fibre；(b) network structure hydroxyapatite overlong nanowire；
The composite formed after (c) network structure hydroxyapatite overlong nanowire parcel glass fibre；
Fig. 2：Inorganic refractory paper and the fire resistance of incombustible paper prepared by the embodiment of the present invention 1；
Fig. 3：Scanning electron microscopy (SEM) figure of inorganic refractory paper prepared by the embodiment of the present invention 1, wherein left figure are fire resisting
Recto figure, right figure is the sectional drawing of incombustible paper；
Fig. 4：The thermal stability analysis of inorganic refractory paper prepared by the embodiment of the present invention 1, as a result show prepared inorganic
Incombustible paper has good heat endurance.
Specific embodiment
The present invention is further illustrated below by way of following implementation methods, it should be appreciated that following implementation methods are merely to illustrate this
Invention, is not intended to limit the present invention.
Inorganic refractory paper of the present invention includes hydroxyapatite overlong nanowire and inorfil, can use hydroxyl phosphorus
Lime stone overlong nanowire and inorfil add what inorganic adhesive was prepared from as primary raw material simultaneously.It is of the present invention
Percentage by weight of the hydroxyapatite overlong nanowire in incombustible paper can be >=40%, preferred hydroxyapatite overlength nanometer
Line percentage by weight is 50~70%.During using preferred hydroxyapatite overlong nanowire mass percent, inorfil can
Fully wrapped up by hydroxyapatite overlong nanowire, the hydroxyl on hydroxyapatite overlong nanowire surface is conducive to improving inorganic fibre
Bond strength between dimension, so that the intensity of the inorganic refractory paper being prepared from using the slurry is improved significantly.
The hydroxyapatite overlong nanowire be by can in water with monodisperse status exist a diameter of 2~100nm,
Length assembles the two-dimensional network structure hydroxyapatite nano line to be formed for the hydroxyapatite nano line of 50nm~100 μm, or
A diameter of 5~the 100nm of person, the hydroxyapatite overlong nanowire that length is 20~2000 μm.Hydroxyapatite of the present invention
Overlong nanowire can be prepared using solvent-thermal method, and prepared by the method for referring to document and patent report, for example：Zhu Yingjie, road
The last the third, Chen Feng, the non-ignitable hydroxyapatite paper of high-flexibility high temperature resistant and preparation method thereof, the patent No.
ZL201310687363.2；Ying-Ying Jiang,Ying-Jie Zhu,Feng Chen,Jin Wu,Ceramics
International,41,6098-6102(2015)；Yong-Gang Zhang,Ying-Jie Zhu Feng Chen,Jin
Wu,Materials Letters,144,135-137(2015).Also other suitable preparation methods can be used, method therefor is only
The hydroxyapatite overlong nanowire can be prepared.
Present invention preferably employs by can in water with monodisperse status exist a diameter of 2~100nm, length as 50nm~
100 μm of hydroxyapatite nano line assembles the two-dimensional network structure hydroxyapatite nano line to be formed.The two-dimensional network structure
The preparation method of hydroxyapatite nano line can be used：Using water-soluble Ca salt as calcium source, using water-soluble phosphate as phosphorus source,
Using water-soluble soap as reactant, surfactant and emulsifying agent, using water as solvent, reaction precursor is obtained after mixing
Liquid suspension；By gained reaction precursor liquid suspension at 100~250 DEG C after hydro-thermal process 1 hour~7 days, then it is separated simultaneously
Wash the hydroxyapatite nano line for obtaining existing with monodisperse status in water with water；The monodisperse status are present
Hydroxyapatite nano line is dispersed in water, and adds ethanol, separation product, washing, alcohol to wash and obtain the two-dimensional network structure hydroxyl
Base apatite nano wire.
In the present invention, the water-soluble soap includes but is not limited to oleate, linoleate, stearate, the moon
Cinnamic acid salt, myristate and palmitate.The soap can make any salt of aliphatic acid, preferred fatty acid
Receive salt or sylvite.It is interpreted as can also using two or more soap using a kind of soap.Additionally
Should be appreciated that the product of corresponding aliphatic acid and alkali, the product of such as oleic acid and NaOH.Soap
The water formation soap aqueous solution can be first dissolved in and add reaction system, the molar concentration of the soap aqueous solution can be
0.01~10 mol/L.The water-soluble Ca salt include but is not limited to calcium chloride, calcium sulfate, calcium acetate, calcium nitrate and/or
Its hydrate, it should be understood that a kind of water-soluble Ca salt can be used, two or more water-soluble Ca salt can be also used；Additionally
Should be appreciated that water-soluble calcium salt hydrate, such as CaCl2·2H2O.The water-soluble calcium saline solution molar concentration can
It is 0.001~10 mol/L, preferably 0.01~2 mol/L.Water-soluble phosphate is added in above-mentioned precursors
The aqueous solution, reaction precursor liquid suspension is obtained after uniform mixing.The molar concentration of the water-soluble phosphoric acid saline solution can be
0.001~10 mol/L, preferably 0.01~2 mol/L.The water-soluble phosphate includes but is not limited to sodium phosphate, phosphorus
Acid dihydride sodium, disodium hydrogen phosphate, sodium tripolyphosphate, calgon, potassium phosphate, dipotassium hydrogen phosphate, potassium dihydrogen phosphate, trimerization phosphorus
Sour potassium, hexa metaphosphoric acid potassium, ammonium phosphate, diammonium hydrogen phosphate, ammonium dihydrogen phosphate, tripolyphosphate ammonium, Hexamethylphosphoric acid triamide, and/or more than
The hydrate of compound.It should be understood that a kind of water-soluble phosphate can be used, two or more water-soluble phosphorus can be also used
Hydrochlorate；Additionally should be appreciated that the hydrate of water-soluble phosphate, such as NaH2PO4·2H2O.Precursors are hanged
Supernatant liquid hydro-thermal process at 100~250 DEG C is after 1 hour~7 days then separated and washes with water and obtains the hydroxyapatite and receive
Rice noodles, by the monodisperse status exist hydroxyapatite nano line be dispersed in water, add ethanol, separation product, washing,
Alcohol is washed and obtains the two-dimensional network structure hydroxyapatite nano line.In the present invention, the water-soluble soap and calcium source
Mol ratio be 10:1~1:10, it is preferable that its mol ratio is 7:2~5:1.The water-soluble Ca salt and water-soluble phosphate
Mol ratio can be 1:10~10:1, preferably 1:2~2:1.Finally, by reaction precursor liquid suspension at 100~250 DEG C hydro-thermal
It is after treatment 1 hour~7 days then separated and wash with water and obtain the hydroxyapatite nano line, by the monodisperse status
The hydroxyapatite nano line of presence is dispersed in water, and adds ethanol, separation product, washing, alcohol to wash and obtain described two-dimension netted
Structural hydroxyl apatite nano wire.
Gained hydroxyapatite overlong nanowire will be prepared and be prepared into water slurry.The hydroxyapatite nano line water hangs
The concentration of supernatant liquid can be 0.1~10wt.%, and preferred concentration is 0.3~4wt.%.
Hydroxyapatite overlong nanowire obtained by preparing is prepared into water slurry and is mixed with inorfil, is starched
Material.Inorfil of the present invention includes but is not limited to glass fibre, carbon fiber, boron fibre, oxide fibre, silicate
Fiber, silicon carbide fibre and metallic fiber, preferably glass fibre.A diameter of 1~15 μm of inorfil of the present invention, length
It is 1~12mm.In gained slurry (water slurry) concentration of inorfil be 0.1~10wt.%, preferred concentration be 0.2~
1wt.%.
Can also be added in above-mentioned slurry can also add inorganic adhesive.Inorganic adhesive of the present invention includes but not office
It is limited to silicates (sodium metasilicate, potassium metasilicate, metasilicic acid ammonium, sodium metasilicate, potassium silicate, ammonium silicate etc.), aluminium salt class (chlorination
Aluminium, aluminium polychloride, aluminum sulfate, aluminum nitrate, sodium aluminate, potassium aluminate, ammonium aluminate, alumina silicate etc.), phosphoric acid salt (aluminum phosphate, phosphorus
Acid dihydride aluminium, phosphoric acid hydrogen aluminium, potassium pyrophosphate, sodium pyrophosphate, sodium tripolyphosphate, PTPP, tripolyphosphate ammonium, hexa metaphosphoric acid
Sodium, hexa metaphosphoric acid potassium, Hexamethylphosphoric acid triamide, ammonium polyphosphate etc.), borate family (boric acid, Boratex, potassium borate, ammonium borate etc.)
With Ludox, Alumina gel etc..The inorganic adhesive can be with the crystallization water or without the crystallization water.The present invention prepares inorganic refractory paper
Single inorganic adhesive can be used, it would however also be possible to employ the combination of two or more inorganic adhesive.Using two kinds or two
When planting the combination of above inorganic adhesive, may be chemically reacted between inorganic adhesive, the product of generation is equably coated
On hydroxyapatite nano line and inorfil, both hydroxyapatite nano line and nothing can also be made with fire resisting, high temperature resistant
Interweaving between machine fiber, it is even closer to combine, so as to improve the mechanical strength of inorganic refractory paper.The inorganic adhesive is in fire resisting
Percentage by weight in paper can be 0~30%.
The paper technology of inorganic refractory paper of the present invention is：The slurry that will have been configured is molded by drainage, squeezing (pressure
1~5MPa of power, 1~30min of time), dry (60~105 DEG C of temperature, 3~30min of time) and press polish (5~150N/ of line pressure
Mm, 5~15m/min of speed) after be prepared into incombustible paper.
Heretofore described inorganic refractory paper is prepared into thickness and is not less than 50 μm by traditional paper-making process, preferably 50~
3000 μm, more preferably 100~300 μm.The thickness of the inorganic refractory paper can be adjusted as needed, can be made more than 3000 μm
It is " inorganic refractory pad " that selection thickness is bigger even " inorganic refractory brick ".The present invention measures the present invention by computer tensiometer
The tensile strength of the inorganic refractory paper for preparing can be 5~50MPa.
The present invention is prepared into a kind of dispersion after hydroxyapatite overlong nanowire is wrapped up into inorfil using Particular craft
Property good slurry, it is the novel inorganic fire resisting of " framework of steel reinforcement " structure with inorfil to form one kind after slurry drainage shaping
Paper.Compared with single component hydroxyapatite overlong nanowire incombustible paper, the physical strength of inorganic refractory paper prepared by the present invention
Performance (tensile strength, pop strength, folding strength and tearing strength), surface property (glossiness and smoothness) of paper etc.
To greatly improving, the low difficulty of the physical strength performance of single component hydroxyapatite overlong nanowire incombustible paper is efficiently solved
Topic.
The invention has the advantages that：
It is relatively low with incombustible paper mechanical strength prepared by hydroxyapatite overlong nanowire single component, limit its application.This hair
Bright use inorfil is combined as " framework of steel reinforcement " and hydroxyapatite overlong nanowire and adds inorganic adhesive and prepares nothing
Machine incombustible paper, can significantly improve the mechanical property of incombustible paper, can effectively solve single component hydroxyapatite overlong nanowire
The low problem of incombustible paper mechanical strength.Inorganic refractory paper prepared by the present invention have good pliability, high-biocompatibility,
It is fire resisting, high temperature resistant, environment-friendly, can be used as writing printing printing paper, calligraphy and drawing paper, high-temperature resistant label paper, flame-retardant paper,
High temperature resistant paper and sheathing paper etc., have a good application prospect in fire-retardant, fire resisting, high temperature resistant and heat-insulated field.
Embodiment is enumerated further below to describe the present invention in detail.It will similarly be understood that following examples are served only for this
Invention is further described, it is impossible to be interpreted as limiting the scope of the invention, those skilled in the art is according to this hair
Some nonessential modifications and adaptations that bright the above is made belong to protection scope of the present invention.Following examples are specific
Technological parameter etc. is also only that an example in OK range, i.e. those skilled in the art can be done properly by the explanation of this paper
In the range of selection, and do not really want to be defined in the concrete numerical value of hereafter example.
Embodiment 1：
It is the water slurry that 3mm, a diameter of 4 μm of glass fibre are configured to that concentration is 0.5wt.% by length, it is ultrasonically treated
3min, then by concentration for 0.5wt.% network structure hydroxyapatite overlong nanowire water slurry according to 50wt.% hydroxyls
The proportioning of base apatite overlong nanowire mixes with glass fibre water slurry, adds in water slurry according to 20wt.% proportionings
Polyphosphate sodium inorganic adhesive is added, slurry is obtained after being slowly stirred 1min, slurry is filtered on the quick sheet forming apparatus of kayser
Water is molded, after the page after shaping is by squeezing (pressure 4MPa, time 8min), drying (temperature is 95 DEG C, and the time is 3min)
It is prepared into incombustible paper.The thickness of the incombustible paper is 140 μm, and tensile strength is 5MPa.
Embodiment 2：
It is the water slurry that 6mm, a diameter of 6 μm of glass fibre are configured to that concentration is 0.3wt.% by length, it is ultrasonically treated
3min, then by concentration for 0.3wt.% network structure hydroxyapatite overlong nanowire water slurry according to 60wt.% hydroxyls
The proportioning of base apatite overlong nanowire mixes with alumina silicate fibre water slurry, according to 20wt.% proportionings in water slurry
Addition aluminum sulfate inorganic adhesive, obtain slurry after being slowly stirred 1min, by slurry on the quick sheet forming apparatus of kayser drainage
Shaping, after the page after shaping passes through squeezing (pressure 1MPa, time 10min), dry (temperature is 65 DEG C, and the time is 10min)
It is prepared into incombustible paper.The thickness of the incombustible paper is 234 μm, and tensile strength is 8MPa.
Embodiment 3：
It is the water slurry that 3mm, a diameter of 4 μm of glass fibre are configured to that concentration is 0.5wt.% by length, it is ultrasonically treated
3min, then by concentration for 0.3wt.% network structure hydroxyapatite overlong nanowire water slurry according to 70wt.% hydroxyls
The proportioning of base apatite overlong nanowire mixes with glass fibre water slurry, adds in water slurry according to 10wt.% proportionings
Plus boric acid and sodium metasilicate composite inorganic adhesive, slurry is obtained after being slowly stirred 1min, by slurry in the quick sheet forming of kayser
Drainage shaping on device, page after shaping by squeezing (pressure 4MPa, time 8min), dry that (temperature is 95 DEG C, and the time is
Incombustible paper is prepared into after 5min).The thickness of the incombustible paper is 155 μm, and tensile strength is 6MPa.
Embodiment 4：
It is the water slurry that 3mm, a diameter of 4 μm of glass fibre are configured to that concentration is 0.3wt.% by length, it is ultrasonically treated
3min, then by concentration for 0.3wt.% network structure hydroxyapatite overlong nanowire water slurry according to 90wt.% hydroxyls
The proportioning of base apatite overlong nanowire mixes with glass fibre water slurry, is added in water slurry according to 5wt.% proportionings
Sodium tripolyphosphate and potassium pyrophosphate composite inorganic adhesive, slurry is obtained after being slowly stirred 1min, by slurry in the quick paper of kayser
Drainage shaping on page former, page after shaping by squeezing (pressure 4MPa, time 3min), dry (temperature is 95 DEG C, when
Between be 3min) after be prepared into incombustible paper.The thickness of the incombustible paper is 203 μm, and tensile strength is 10MPa.
Comparative example 1：
The hydroxyapatite overlong nanowire that will be washed by alcohol and washed is configured to the water slurry that concentration is 0.5wt.%, stirring
The drainage shaping on the quick sheet forming apparatus of kayser after uniform, page after shaping by squeezing (pressure 4MPa, time 3min),
Incombustible paper is prepared into after drying (temperature is 95 DEG C, and the time is 3min).The pure ha overlong nanowire incombustible paper
Thickness is 200 μm, and tensile strength is 0.1MPa.
Comparative example 2：(glass fibre incombustible paper)
After measured, thickness is that the tensile strength of 262 μm of all-glass paper is 1.1MPa.
To sum up, by tensile strength understand inorganic refractory paper prepared by the present invention be not by pure ha incombustible paper and
The simple addition of all-glass paper.
Claims (6)
1. a kind of inorganic refractory paper, it is characterised in that the inorganic refractory paper includes hydroxyapatite overlong nanowire and inorganic
Fiber.
2. inorganic refractory paper according to claim 1, it is characterised in that the inorganic refractory paper is also containing inorganic gluing
Agent.
3. inorganic refractory paper according to claim 2, it is characterised in that the inorganic adhesive includes that silicates are gluing
Agent, aluminium salt class adhesive, phosphoric acid salt adhesive, borate family adhesive, Ludox adhesive and Alumina gel adhesive.
4. the inorganic refractory paper according to any one of claim 1-3, it is characterised in that the hydroxyapatite overlength is received
Rice noodles are a diameter of 2~100 nm by that can exist with monodisperse status in water, and length is the hydroxyl phosphorus of 50 nm~100 μm
Lime stone nano wire assembles the two-dimensional network structure hydroxyapatite nano line or a diameter of 5~100 nm to be formed, and length is 20
~2000 μm of hydroxyapatite overlong nanowire.
5. the inorganic refractory paper according to any one of claims 1-4, it is characterised in that the inorfil includes glass
Glass fiber, carbon fiber, boron fibre, oxide fibre, silicate fiber, silicon carbide fibre and metallic fiber, the inorfil
A diameter of 1 ~ 15 μm, length be 1 ~ 12 mm.
6. a kind of inorganic refractory paper as any one of claim 1-5 is write in fire-retardant, fire resisting, high temperature resistant, heat-insulated, fire resisting
Application in copy paper, special type fire paper field.
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| CN201611095798.8A CN106676947B (en) | 2016-12-02 | 2016-12-02 | A kind of inorganic refractory paper and its preparation method and application |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN107476129A (en) * | 2017-08-14 | 2017-12-15 | 中国科学院上海硅酸盐研究所 | A kind of high temperature resistant fire resisting compliant conductive paper and its application based on hydroxyapatite overlong nanowire |
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| CN107445520A (en) * | 2017-07-27 | 2017-12-08 | 泾县信达工贸有限公司 | A kind of electric rice cooker heated disk thermostable heat-conductive insulating materials |
| CN107476129A (en) * | 2017-08-14 | 2017-12-15 | 中国科学院上海硅酸盐研究所 | A kind of high temperature resistant fire resisting compliant conductive paper and its application based on hydroxyapatite overlong nanowire |
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| CN109082942A (en) * | 2018-08-01 | 2018-12-25 | 中国科学院上海硅酸盐研究所 | " rice paper " is imitated in fire resisting |
| CN109082942B (en) * | 2018-08-01 | 2021-07-13 | 中国科学院上海硅酸盐研究所 | Fire-proof imitation Xuan paper " |
| CN112969829A (en) * | 2018-12-11 | 2021-06-15 | 舍弗勒技术股份两合公司 | Thermal insulation paper and method for producing thermal insulation paper |
| US20220025581A1 (en) * | 2018-12-11 | 2022-01-27 | Schaeffler Technologies AG & Co. KG | Thermal insulating paper and method for producing a thermal insulating paper |
| CN109957973A (en) * | 2019-03-13 | 2019-07-02 | 马亮 | Fireproof paper for art painting and preparation method thereof |
| CN110655668A (en) * | 2019-10-25 | 2020-01-07 | 陕西科技大学 | Hydroxyapatite nanowire/ANF composite film and preparation method and application thereof |
| CN111910467A (en) * | 2020-07-21 | 2020-11-10 | 中国科学院上海硅酸盐研究所 | Barium sulfate fiber inorganic refractory paper and preparation method and application thereof |
| CN111910467B (en) * | 2020-07-21 | 2021-06-15 | 中国科学院上海硅酸盐研究所 | Barium sulfate fiber inorganic refractory paper and preparation method and application thereof |
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