CN107244882A - A kind of aerosil felt and preparation method thereof - Google Patents
A kind of aerosil felt and preparation method thereof Download PDFInfo
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- CN107244882A CN107244882A CN201710467656.8A CN201710467656A CN107244882A CN 107244882 A CN107244882 A CN 107244882A CN 201710467656 A CN201710467656 A CN 201710467656A CN 107244882 A CN107244882 A CN 107244882A
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- 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
- C04B30/00—Compositions for artificial stone, not containing binders
- C04B30/02—Compositions for artificial stone, not containing binders containing fibrous materials
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- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
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- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Engineering & Computer Science (AREA)
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- Materials Engineering (AREA)
- Structural Engineering (AREA)
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- Chemical Or Physical Treatment Of Fibers (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
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Abstract
The invention provides a kind of aerosil felt and preparation method thereof.The aerosil felt is the three-dimensional net structure being composited by aerosil fiber, inorfil, and aerosil fiber mutually interts with inorfil, wherein, the mass ratio of aerosil fiber and inorfil is 2:3‑3:2.The preparation method immerses inorganic fibrous mats the silicon dioxde solution for being mixed with foaming agent, inorganic fibrous mats are made fully to adsorb silicon dioxde solution, mixing brin is made by drawing between inorganic fibrous mats, is then classified through colloidal sol, aging, normal pressure and is dried, is classified the aerosil felt for foaming and obtaining in puffy.Aerosil felt high mechanical strength that the present invention is provided, good toughness, with higher heat insulating effect；The preparation method of offer can carry out the compound of fibrofelt in aerosil preparation process, and by being classified foaming aerosil can be made fluffy and make fibrofelt foamed, improve the heat insulation property of aerosil felt.
Description
Technical field
The invention belongs to building material field, it is related to a kind of aerosil felt and preparation method thereof, more particularly to
A kind of aerosil felt heat-insulated for building heat preservation and preparation method thereof.
Background technology
With the development of global economy, energy scarcity has become the very important weight that social sustainable development is faced
One of big problem.Solution has three：One is to increase income, and two be throttling, and three be insulation.Insulation refers to use heat preserving and insulating material
And product, prevent the heat loss of various buildings and industrial therrmodynamic system.Insulation material for being described as " the 5th energy ", generation
Jie Ge states all pay much attention to its development, in energy conservation, and the application greatly developed and actively promote insulation material is also the world
Most effective, the most viable measure that various countries generally take.Especially in building field, heat-barrier material can be divided into organic heat-insulated material
Material and thermal insulation inorganic material.Organic heat-barrier material is mainly used in the relatively low heat-insulated occasion of temperature, mainly includes phenol formaldehyde foam modeling
Material and polyurethane foam plastics etc., these materials cannot be used for high temperature insulating；Thermal insulation inorganic material can be used for temperature it is higher every
Thermal field is closed, mainly including foamed ceramics, ceramic fiber blanket, ceramic fiber paper etc..But most of traditional thermal insulation inorganic material by
Of a relatively high in thermal conductivity factor, energy loss is larger.
Aerosil is the current minimum solid material of thermal conductivity factor in the world, because it has special nanoscale
Micropore and skeleton structure and cause its heat conduction efficiency, convection heat transfer' heat-transfer by convection efficiency and radiant heat transfer efficiency to be obtained for effective limit
System, so with low-down thermal conductivity factor, only 0.01W/ (m.K) at normal temperatures and pressures.In addition, aerosil
Also have the advantages that porosity height, specific surface area are big, apply in building heat insulation system, northern frore area building can be met
The requirement of energy saving igniter, is particularly suitable in severe cold area popularization and application.But it is due to pure aerosil
Mechanical strength is low, poor toughness, generally exists with powder, it is difficult to be molded, and does not possess certain shape, therefore limit it in construction
On operability and application.There are numerous studies to be directed to by the carrier dioxide composite silica aerogel such as fibrofelt at present
To improve structural stability and mechanical property, such as Chinese patent application CN201610203045.8 discloses a kind of magnesium silicate fiber
Felt strengthens silicon dioxide silica aerogel composite material, and it uses resourceful environment-friendly type magnesium silicate fibrofelt as reinforcement, leads to
Liquid infiltration and mass transfer are crossed, aerosil presoma and magnesium silicate fiber felt are combined, magnesium silicate is prepared
Fibrofelt strengthens silicon dioxide silica aerogel composite material, wherein, magnesium silicate fiber felt is reinforcement, and content is sample gross mass
30-50%, aerosil is matrix.CN201510376341.3 provides that a kind of intensity is good, low-carbon environment-friendly rigidity
The preparation method of aerosil heat-insulating shield, comprises the following steps：（1）Modulus number 3.1-3.6 sodium silicate 68-
120g, adds pure water 100-200g and stirs, and obtains diluting waterglass；（2）40wt% sulfuric acid 25-100g are weighed, 10- is added
40g ethanol, stirs, and obtains sulfuric acid solution；（3）Waterglass will be diluted and sulfuric acid solution is mixed, regulation PH is 3.5-4.5,
Obtain colloidal sol；（4）Colloidal sol is poured into and is placed with the mould of reinforcing fiber, colloidal sol will after 10-15min gel, be then incubated 50-
80 DEG C of standing 2-10h, are made gel slab；（5）Integrated aging and acid alcohol containing alcohol water-setting offset plate；（6）Acid alcohol will be completed
Gel slab is inserted in 1000-2500ml trimethylethoxysilane, is handled at room temperature, and a step is completed into hydrophobic change in 6-10h
Property and gel discharge opeing；（7）After the completion of discharge opeing, wet gel plate is subjected to hot nitrogen or carbon dioxide is dried.
CN201410228875.7 discloses a kind of aeroge composite fibre insulation material and preparation method thereof；Aeroge composite fibre is protected
Adiabator is by SiO2Aerogel particle, inorfil, adhesive and curing agent are that raw material Compound Machining is formed, and can form insulation
Felt, insulation blanket and heat preservation plate material；The preparation method of aeroge composite fibre insulation material is by by the SiO of certain size2Gas
Gel particle is by spray coated on the inorfil surface of certain specification, temperature-pressure drying forming, finally by weaving work
Skill is reinforced and is molded with.Various forms of insulation materials, such as insulation quilt, insulation can be prepared according to control pressure and cutting size
Blanket and warming plate etc..CN201410681463.9, which discloses a kind of fibrofelt, strengthens the preparation side of aerosil composite plate
Method, using industrial-grade sodium silicate as silicon source, is alkylated, titanium dioxide is made in constant pressure and dry with silane modifier to Silica hydrogel surface
Aerogel particles；The silica aerogel powder of preparation and PUR rubber powder are mixed in incorporation fibrofelt in proportion, entered
Row is hot-forming.
But, no matter by the compound obtained composite silicon dioxide aerogel blanket of wet gel composite drying or xerogel,
All fail to give full play to the heat insulating effect of aeroge.
The content of the invention
In view of the shortcoming of above-mentioned prior art, it is an object of the invention to provide a kind of aerosil felt and its system
Preparation Method, aerosil felt high mechanical strength, the good toughness, with higher heat insulating effect.The preparation method
The compound of fibrofelt can be carried out in aerosil preparation process, and aerosil can be made by being classified foaming
It is fluffy and make fibrofelt foamed, improve the heat insulation property of aerosil felt.
In order to reach foregoing goal of the invention, the present invention provides a kind of aerosil felt, the silica gas
Gel felt is the three-dimensional net structure being composited by aerosil fiber, inorfil, the silica airsetting
Glue fiber mutually interts with inorfil,
Preferably, the mass ratio of the aerosil fiber and the inorfil is 2:3-3:2.
In above-mentioned aerosil felt, it is preferable that the inorfil include glass felt fiber, ceramic fibre,
One or more of combinations in alumina silicate felt fiber, mineral wool, rock/asbestos.
In above-mentioned aerosil felt, it is preferable that the thermal conductivity factor of the aerosil felt is less than
0.03w/mk, compression strength 1.2-2.5MPa, rupture strength is 2.0-3.5MPa.
The present invention also provides the preparation method of above-mentioned aerosil felt, and it comprises the following steps：
Step one：It is 0.01 in mass ratio by polyurethane nano particle, foaming agent, polymer emulsion, fluorocarbon surfactant：
（5-8）：（0.5-1）：（0.02-0.05）Mixing, and in the emulsified 30min-40min of 1500-2500rpm speed conditions, obtain
Composition, foam；
Step 2：It is 1 in mass ratio by the composition, foam and silicon dioxde solution：（80-95）Mixing, obtains mixed liquor；
Step 3：Inorganic fibrous mats are immersed in the mixed liquor, ammonia spirit is then added dropwise and adjusts its pH for 7-9, passes through nothing
Drawing makes mixing brin between machine fibrofelt, obtains inorganic fibrous mats/silica mixed sols presoma；
Step 4：Aging at a temperature of inorganic fibrous mats/silica mixed sols presoma is placed in 50 DEG C -80 DEG C is formed
Colloidal sol, foaming is then classified at a temperature of normal pressure, 80 DEG C -160 DEG C, the aerosil felt of puffy is obtained.
In above-mentioned preparation method, the classification foaming refers to carry out segmentation foaming in different temperature range sections.
In above-mentioned preparation method, it is preferable that it is described classification foaming temperature range section be 80-100 DEG C, 100-120 DEG C,
120-140℃,140-160℃。
In above-mentioned preparation method, it is preferable that the silicon dioxde solution is prepared by following steps：
It is 1 in mass ratio by organosilicate, inorganic silicate, polyvinyl alcohol and water：（0.3-1）：（0.1-0.2）：（3-7）It is mixed
Close, acid solution is then added dropwise and adjusts its pH for 3-6, silicon dioxde solution is obtained.
In above-mentioned preparation method, it is preferable that the organosilicate includes sodium methyl silicate or potassium methyl silicate；It is described
Inorganic silicate includes sodium metasilicate or potassium silicate；
The acid solution includes inorganic acid solution or organic acid soln；The inorganic acid includes hydrochloric acid, sulfuric acid, phosphoric acid or hydrofluoric acid
Any of；The organic acid includes any of oxalic acid, acetic acid or citric acid.
In above-mentioned preparation method, the mass concentration of the acid solution is 5%-15%, the mass concentration of the ammonia spirit
For 5%-15%.
In above-mentioned preparation method, it is preferable that the foaming agent includes azodicarbonamide, 4, the double benzene sulfonyls of 4 '-oxo
Any of hydrazine, benzene sulfonyl hydrazide, unifor, N, N '-dinitrosopentamethlyene tetramine, ammonium hydrogen carbonate.
In above-mentioned preparation method, it is preferable that the polymer emulsion includes polyacrylamide, polyacrylic acid potassium, poly- 2-
Any of acrylamido -2- methyl propane sulfonic acids.
In above-mentioned preparation method, it is preferable that the fluorocarbon surfactant includes N, N- dihydroxy ethyl perfluoroalkyl acyls
In amine, perfluoro caprylic acid ammonia, perfluor caproic acid ammonia, perfluoroalkyl betain, perfluoroalkyl polyethers and perfluoroalkyl polyoxy vinethene
It is any.
Beneficial effects of the present invention：
（1）The present invention combines the foaming of polyurethane nano particle, foaming agent, polymer emulsion, fluorocarbon surfactant composition
Liquid coordinates with titanium dioxide silicon liquid, makes silica mixing brin by drawing between inorganic fibrous mats, makes silica with fiber
Shape is combined with inorfil.
（2）Inorfil and aerosil fiber are mutually interted to interweave and form stable three-dimensional net structure,
Substantially increase the strength and toughness of pure silicon dioxide aeroge, and obtained composite felt is more suitable for making in puffy, not scaling-off
For building heat preservation heat-barrier material.
（3）The preparation method for the aerosil felt that the present invention is provided, in aerosil preparation process
Carry out fibrofelt be combined, by be classified foaming make aeroge completely it is fluffy, make fibrofelt foamed, so as to make the guarantor of aeroge
Warm thermal insulation gives full play to.It is more beneficial for the insulation of aerosil felt.
Embodiment
Below by way of embodiment, the present invention is described in further detail, but this should not be interpreted as to the present invention
Scope be only limitted to following example.In the case where not departing from above method thought of the present invention, according to ordinary skill
Various replacements or change that knowledge and customary means are made, should be included in the scope of the present invention.
Embodiment 1
A kind of preparation method of aerosil felt is present embodiments provided, it comprises the following steps：
Step one：It is 1 in mass ratio by sodium methyl silicate, sodium metasilicate, polyvinyl alcohol and water：1：0.1：7 mixing, are then added dropwise matter
The citric acid solution that concentration is 5% is measured, the pH of regulation mixed system is 5, obtains the thick solution of silica；
Step 2：It is 0.01 by mass ratio：5：0.8：0.03 polyurethane nano particle, benzene sulfonyl hydrazide, poly- 2- acrylamidos-
2- methyl propane sulfonic acids, N, N- dihydroxy ethyl perfluoroalkyl acid amides are foamed in the emulsified 40min of 1500rpm speed conditions
Composition；
Step 3：The thick solution of silica is subjected to centrifugation purification with 6000rpm, part salt is removed, obtains silicon dioxde solution,
It is 1 in mass ratio by composition, foam and silicon dioxde solution：80 are mixed to get mixed liquor；
Step 4：Glass mat is immersed in above-mentioned mixed liquor, mass concentration is then added dropwise and adjusts it for 5% ammonia spirit
PH is 9, makes silica mixing brin by drawing between inorganic fibrous mats, obtains glass mat/silica mixing molten
Glue presoma；
Step 5：Aging at a temperature of above-mentioned glass mat/silica mixed sols presoma is placed in 50 DEG C DEG C is formed molten
Glue, then under normal pressure, point level Four foamable at a temperature of 80 DEG C, 100 DEG C, 120 DEG C, 140 DEG C respectively, pass through to foam and produce
Obtain the aerosil felt of puffy.
Aerosil felt is made to the present embodiment to test, it is found that the aerosil felt is by dioxy
The three-dimensional net structure that SiClx airsetting glue fiber, glass fibre are composited, wherein, aerosil fiber and glass fibers
Dimension is mutually interspersed, and the mass ratio of aerosil fiber and glass fibre is 2:3, thermal conductivity factor is 0.025w/mk,
Compression strength 1.2MPa, rupture strength is 2.2MPa.
Embodiment 2
A kind of preparation method of aerosil felt is present embodiments provided, it comprises the following steps：
Step one：It is in mass ratio by sodium methyl silicate, sodium metasilicate, polyvinyl alcohol and water1：0.8：0.2：5 mixing, are then added dropwise
Mass concentration is 10% acetum, and the pH of regulation mixed system is 4, obtains the thick solution of silica；
Step 2：It is 0.01 by mass ratio：6：0.5：0.05 polyurethane nano particle, azodicarbonamide, polyacrylamide,
Perfluoro caprylic acid ammonia obtains composition, foam in the emulsified 30min of 2000rpm speed conditions；
Step 3：The thick solution of the silica is subjected to centrifugation purification with 6000rpm, part salt is removed, obtains silica molten
Liquid, is 1 in mass ratio by composition, foam and silicon dioxde solution：85 are mixed to get mixed liquor；
Step 4：Ceramic fiber blanket is immersed in above-mentioned mixed liquor, mass concentration is then added dropwise and adjusts it for 5% ammonia spirit
PH is 8, makes silica mixing brin by drawing between inorganic fibrous mats, obtains ceramic fiber blanket/silica mixing molten
Glue presoma；
Step 5：Aging at a temperature of above-mentioned ceramic fiber blanket/silica mixed sols presoma is placed in 50 DEG C DEG C is formed molten
Glue, then under normal pressure, point level Four foamable at a temperature of 80 DEG C, 100 DEG C, 120 DEG C, 140 DEG C respectively, pass through to foam and produce
Obtain the aerosil felt of puffy.
Aerosil felt is made to the present embodiment to test, it is found that the aerosil felt is by dioxy
The three-dimensional net structure that SiClx airsetting glue fiber, ceramic fibre are composited, wherein, aerosil fiber is fine with ceramics
Dimension is mutually interspersed, and the mass ratio of aerosil fiber and ceramic fibre is 2:3, thermal conductivity factor is 0.027w/mk,
Compression strength 1.5MPa, rupture strength is 2.5MPa.
Embodiment 3
A kind of preparation method of aerosil felt is present embodiments provided, it comprises the following steps：
Step one：It is 1 in mass ratio by potassium methyl silicate, potassium silicate, polyvinyl alcohol and water：0.6：0.1：5 mixing, are then added dropwise
Mass concentration is 15% oxalic acid solution, and the pH of regulation mixed system is 4, obtains the thick solution of silica；
Step 2：It is 0.01 by mass ratio：7：0.5：0.04 polyurethane nano particle, unifor, poly- 2- acryloyls
Amido -2- methyl propane sulfonic acids, perfluoroalkyl polyethers obtain composition, foam in the emulsified 40min of 2500rpm speed conditions；
Step 3：The thick solution of the silica is subjected to centrifugation purification with 6000rpm, part salt is removed, obtains silica molten
Liquid, is 1 in mass ratio by composition, foam and silicon dioxde solution：90 are mixed to get mixed liquor；
Step 4：Alumina silicate fiber felt is immersed in above-mentioned mixed liquor, mass concentration is then added dropwise and is adjusted for 5% ammonia spirit
Its pH is 7, makes silica mixing brin by drawing between inorganic fibrous mats, obtains alumina silicate fiber felt/silica and mixes
Close sol precursor；
Step 5：Aging at a temperature of above-mentioned alumina silicate fiber felt/silica mixed sols presoma is placed in 70 DEG C is formed molten
Glue, then under normal pressure, point level Four foamable at a temperature of 80 DEG C, 100 DEG C, 120 DEG C, 140 DEG C respectively, pass through to foam and produce
Obtain the aerosil felt of puffy.
Aerosil felt is made to the present embodiment to test, it is found that the aerosil felt is by dioxy
The three-dimensional net structure that SiClx airsetting glue fiber, alumina silicate fibre are composited, wherein, aerosil fiber and silicic acid
Aluminum fiber mutually interts, and the mass ratio of aerosil fiber and alumina silicate fibre is 2:2.7, thermal conductivity factor is
0.025w/mk, compression strength 1.8MPa, rupture strength is 2.7MPa.
Embodiment 4
A kind of preparation method of aerosil felt is present embodiments provided, it comprises the following steps：
Step one：It is 1 in mass ratio by sodium methyl silicate, sodium metasilicate, polyvinyl alcohol and water：0.5：0.1：5 mixing, are then added dropwise
Mass concentration is 15% citric acid solution, and the pH of regulation mixed system is 4, obtains the thick solution of silica；
Step 2：It is 0.01 by mass ratio：6：0.5：0.05 polyurethane nano particle, ammonium hydrogen carbonate, polyacrylamide, perfluor
Caproic acid ammonia obtains composition, foam in the emulsified 40min of 2500rpm speed conditions；
Step 3：The thick solution of the silica is subjected to centrifugation purification with 6000rpm, part salt is removed, obtains silica molten
Liquid, is 1 in mass ratio by composition, foam and silicon dioxde solution：95 are mixed to get mixed liquor；
Step 4：Slag wool fiber felt is immersed in above-mentioned mixed liquor, mass concentration is then added dropwise and is adjusted for 5% ammonia spirit
Its pH is 7, makes silica mixing brin by drawing between inorganic fibrous mats, obtains slag wool fiber felt/silica and mixes
Close sol precursor；
Step 5：Aging at a temperature of above-mentioned slag wool fiber felt/silica mixed sols presoma is placed in 70 DEG C is formed molten
Glue, then under normal pressure, point level Four foamable at a temperature of 80 DEG C, 100 DEG C, 120 DEG C, 140 DEG C respectively, pass through to foam and produce
Obtain the aerosil felt of puffy.
Aerosil felt is made to the present embodiment to test, it is found that the aerosil felt is by dioxy
The three-dimensional net structure that SiClx airsetting glue fiber, slag wool fiber are composited, wherein, aerosil fiber and slag
Cotton fiber mutually interts, and aerosil fiber and the mass ratio of slag wool fiber are 3:2.3, thermal conductivity factor is
0.03w/mk, compression strength 1.7MPa, rupture strength is 2.6MPa.
Embodiment 5
A kind of preparation method of aerosil felt is present embodiments provided, it comprises the following steps：
Step one：It is 1 in mass ratio by sodium methyl silicate, sodium metasilicate, polyvinyl alcohol and water：1：0.1：7 mixing, are then added dropwise matter
The citric acid solution that concentration is 15% is measured, the pH of regulation mixed system is 4, obtains the thick solution of silica；
Step 2：It is 0.01 by mass ratio：6：0.5：0.02 polyurethane nano particle, benzene sulfonyl hydrazide, poly- 2- acrylamidos-
2- methyl propane sulfonic acids, perfluoroalkyl polyoxy vinethene obtain composition, foam in the emulsified 40min of 2000rpm speed conditions；
Step 3：The thick solution of the silica is subjected to centrifugation purification with 6000rpm, part salt is removed, obtains silica molten
Liquid, is 1 in mass ratio by composition, foam and silicon dioxde solution：90 are mixed to get mixed liquor；
Step 4：Rock/asbestos fibre felt is immersed in above-mentioned mixed liquor, mass concentration is then added dropwise and is adjusted for 5% ammonia spirit
Its pH is 7, makes silica mixing brin by drawing between inorganic fibrous mats, obtains rock/asbestos fibre felt/silica and mixes
Close sol precursor；
Step 5：Aging at a temperature of above-mentioned rock/asbestos fibre felt/silica mixed sols presoma is placed in 70 DEG C is formed molten
Glue, then under normal pressure, point level Four foamable at a temperature of 80 DEG C, 100 DEG C, 120 DEG C, 140 DEG C respectively, pass through to foam and produce
Obtain the aerosil felt of puffy.
Aerosil felt is made to the present embodiment to test, it is found that the aerosil felt is by dioxy
The three-dimensional net structure that SiClx airsetting glue fiber, rock/asbestos fibre are composited, wherein, aerosil fiber and rock/
Asbestos fibre mutually interts, and the mass ratio of aerosil fiber and rock/asbestos fibre is 3:2.5, thermal conductivity factor is
0.03w/mk, compression strength 1.8MPa, rupture strength is 2.7MPa.
Claims (9)
1. a kind of aerosil felt, it is characterised in that：The aerosil felt is by aerosil
The three-dimensional net structure that fiber, inorfil are composited, the aerosil fiber mutually interts with inorfil.
2. aerosil felt according to claim 1, it is characterised in that：It is fine that the inorfil includes glass felt
One or more of combinations in dimension, ceramic fibre, alumina silicate felt fiber, mineral wool, rock/asbestos.
3. the preparation method of aerosil felt described in claim 1, it comprises the following steps：
Step one：It is 0.01 in mass ratio by polyurethane nano particle, foaming agent, polymer emulsion, fluorocarbon surfactant：
（5-8）：（0.5-1）：（0.02-0.05）Mixing, and in the emulsified 30min-40min of 1500-2500rpm speed conditions, obtain
Composition, foam；
Step 2：It is 1 in mass ratio by the composition, foam and silicon dioxde solution：（80-95）Mixing, obtains mixed liquor；
Step 3：Inorganic fibrous mats are immersed in the mixed liquor, ammonia spirit is then added dropwise and adjusts its pH for 7-9, passes through nothing
Drawing makes mixing brin between machine fibrofelt, obtains inorganic fibrous mats/silica mixed sols presoma；
Step 4：Aging at a temperature of inorganic fibrous mats/silica mixed sols presoma is placed in 50 DEG C -80 DEG C is formed
Colloidal sol, foaming is then classified at a temperature of normal pressure, 80 DEG C -160 DEG C, the aerosil felt of puffy is obtained.
4. the preparation method of aerosil felt according to claim 3, it is characterised in that：The classification foaming
Temperature range section is 80-100 DEG C, 100-120 DEG C, 120-140 DEG C, 140-160 DEG C.
5. the preparation method of aerosil felt according to claim 3, it is characterised in that：The silica is molten
Liquid is prepared by following steps：
It is 1 in mass ratio by organosilicate, inorganic silicate, polyvinyl alcohol and water：（0.3-1）：（0.1-0.2）：（3-7）It is mixed
Close, acid solution is then added dropwise and adjusts its pH for 3-6, silicon dioxde solution is obtained.
6. the preparation method of aerosil felt according to claim 3, it is characterised in that：The organosilicate
Including sodium methyl silicate or potassium methyl silicate；The inorganic silicate includes sodium metasilicate or potassium silicate；
The acid solution includes inorganic acid solution or organic acid soln；The inorganic acid includes hydrochloric acid, sulfuric acid, phosphoric acid or hydrofluoric acid
Any of；The organic acid includes any of oxalic acid, acetic acid or citric acid.
7. the preparation method of aerosil felt according to claim 3, it is characterised in that：The foaming agent includes
Azodicarbonamide, 4,4 '-OBSH, benzene sulfonyl hydrazide, unifor, N, the methine of N '-dinitroso five
Any of tetramine, ammonium hydrogen carbonate.
8. the preparation method of aerosil felt according to claim 3, it is characterised in that：The polymer emulsion
Including any of polyacrylamide, polyacrylic acid potassium, poly- 2- acrylamidos -2- methyl propane sulfonic acids.
9. the preparation method of aerosil felt according to claim 3, it is characterised in that：The fluorocarbon surface is lived
Property agent include N, N- dihydroxy ethyl perfluoroalkyls acid amides, perfluoro caprylic acid ammonia, perfluor caproic acid ammonia, perfluoroalkyl betain, perfluor alkane
Any of base polyethers and perfluoroalkyl polyoxy vinethene.
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| CN108033764A (en) * | 2017-12-20 | 2018-05-15 | 厦门大学 | A kind of sound-insulating and heat-insulating aerogel foam composite material and preparation method thereof |
| CN110106695A (en) * | 2019-04-14 | 2019-08-09 | 泰州浩纳新材料科技有限公司 | A kind of silica nanometer heat preservation felt insulation |
| CN110182816A (en) * | 2019-04-02 | 2019-08-30 | 复旦大学 | The method of flexible aerosil is prepared under a kind of normal pressure |
| CN110272216A (en) * | 2019-07-26 | 2019-09-24 | 南京荣港电气技术有限公司 | A kind of heat-insulated aerogel material of flexibility, preparation method and applications |
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| CN111517661A (en) * | 2020-04-29 | 2020-08-11 | 河北三楷深发科技股份有限公司 | Preparation method of foam modified rock wool product |
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| CN114684811A (en) * | 2020-12-29 | 2022-07-01 | 中国科学院苏州纳米技术与纳米仿生研究所 | Graphene aerogel film, and preparation method and application thereof |
| WO2022259044A1 (en) * | 2021-06-11 | 2022-12-15 | Universidade De Coimbra | Fibre-reinforced aerogel composites from mixed silica and rubber sols and a method to produce the rubber-silica aerogel composites |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6764667B1 (en) * | 2001-03-09 | 2004-07-20 | Steiner, Iii Stephen A. | Method for the formation of aerogel precursor using rapid gelation two-step catalysis |
| CN104891059A (en) * | 2015-05-29 | 2015-09-09 | 中国石油化工股份有限公司 | Method for preventing oil product and gas storage tank from mutual combustion and explosion and for reducing emission of volatile matter |
| CN105621420A (en) * | 2015-12-23 | 2016-06-01 | 成都新柯力化工科技有限公司 | Method for preparing silicon dioxide aerogel through foaming |
| CN106431187A (en) * | 2016-09-14 | 2017-02-22 | 中国科学技术大学 | Fiber and silicon dioxide aerogel composite heat insulation material and preparation method thereof |
| CN106450208A (en) * | 2016-11-04 | 2017-02-22 | 成都新柯力化工科技有限公司 | Silicon composite material for lithium battery cathodes and preparation method of silicon composite material |
-
2017
- 2017-06-20 CN CN201710467656.8A patent/CN107244882B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6764667B1 (en) * | 2001-03-09 | 2004-07-20 | Steiner, Iii Stephen A. | Method for the formation of aerogel precursor using rapid gelation two-step catalysis |
| CN104891059A (en) * | 2015-05-29 | 2015-09-09 | 中国石油化工股份有限公司 | Method for preventing oil product and gas storage tank from mutual combustion and explosion and for reducing emission of volatile matter |
| CN105621420A (en) * | 2015-12-23 | 2016-06-01 | 成都新柯力化工科技有限公司 | Method for preparing silicon dioxide aerogel through foaming |
| CN106431187A (en) * | 2016-09-14 | 2017-02-22 | 中国科学技术大学 | Fiber and silicon dioxide aerogel composite heat insulation material and preparation method thereof |
| CN106450208A (en) * | 2016-11-04 | 2017-02-22 | 成都新柯力化工科技有限公司 | Silicon composite material for lithium battery cathodes and preparation method of silicon composite material |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111278772A (en) * | 2017-11-16 | 2020-06-12 | 株式会社Lg化学 | Low-dust silica aerogel felt and manufacturing method thereof |
| US11760646B2 (en) | 2017-11-16 | 2023-09-19 | Lg Chem, Ltd. | Low-dust silica aerogel blanket and method for manufacturing same |
| CN111278772B (en) * | 2017-11-16 | 2023-03-28 | 株式会社Lg化学 | Low-dust silica aerogel felt and manufacturing method thereof |
| CN108033764B (en) * | 2017-12-20 | 2020-08-25 | 厦门大学 | Sound-insulation and heat-insulation aerogel foam composite material and preparation method thereof |
| CN108033764A (en) * | 2017-12-20 | 2018-05-15 | 厦门大学 | A kind of sound-insulating and heat-insulating aerogel foam composite material and preparation method thereof |
| CN110182816B (en) * | 2019-04-02 | 2022-09-16 | 复旦大学 | Method for preparing flexible silica aerogel under normal pressure |
| CN110182816A (en) * | 2019-04-02 | 2019-08-30 | 复旦大学 | The method of flexible aerosil is prepared under a kind of normal pressure |
| CN110106695A (en) * | 2019-04-14 | 2019-08-09 | 泰州浩纳新材料科技有限公司 | A kind of silica nanometer heat preservation felt insulation |
| CN110272216A (en) * | 2019-07-26 | 2019-09-24 | 南京荣港电气技术有限公司 | A kind of heat-insulated aerogel material of flexibility, preparation method and applications |
| CN110272216B (en) * | 2019-07-26 | 2020-04-14 | 南京荣港电气技术有限公司 | Flexible heat-insulation aerogel material, preparation method and application thereof |
| CN111517661A (en) * | 2020-04-29 | 2020-08-11 | 河北三楷深发科技股份有限公司 | Preparation method of foam modified rock wool product |
| CN114684811A (en) * | 2020-12-29 | 2022-07-01 | 中国科学院苏州纳米技术与纳米仿生研究所 | Graphene aerogel film, and preparation method and application thereof |
| CN114684811B (en) * | 2020-12-29 | 2024-04-12 | 中国科学院苏州纳米技术与纳米仿生研究所 | Graphene aerogel film, preparation method and application thereof |
| CN113510978A (en) * | 2021-04-26 | 2021-10-19 | 杭州本创科技有限公司 | Aerogel anticorrosion heat-insulation flexible plate and manufacturing method thereof |
| WO2022259044A1 (en) * | 2021-06-11 | 2022-12-15 | Universidade De Coimbra | Fibre-reinforced aerogel composites from mixed silica and rubber sols and a method to produce the rubber-silica aerogel composites |
| CN113373557A (en) * | 2021-06-21 | 2021-09-10 | 安徽元琛环保科技股份有限公司 | Manufacturing method of foaming and opening needled felt waste material and opening fiber prepared by same |
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