CN105970742B - A kind of preparation method of vacuum heat-insulating plate - Google Patents
A kind of preparation method of vacuum heat-insulating plate Download PDFInfo
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- CN105970742B CN105970742B CN201610465275.1A CN201610465275A CN105970742B CN 105970742 B CN105970742 B CN 105970742B CN 201610465275 A CN201610465275 A CN 201610465275A CN 105970742 B CN105970742 B CN 105970742B
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- vacuum heat
- insulating plate
- glass
- heat insulation
- glass microballoon
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
- D21J1/00—Fibreboard
-
- 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
- D21H13/38—Inorganic fibres or flakes siliceous
- D21H13/40—Inorganic fibres or flakes siliceous vitreous, e.g. mineral wool, glass 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
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/36—Inorganic fibres or flakes
- D21H13/46—Non-siliceous fibres, e.g. from metal oxides
- D21H13/50—Carbon 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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
- D21H17/68—Water-insoluble compounds, e.g. fillers, pigments siliceous, e.g. clays
Abstract
The present invention relates to a kind of preparation method of vacuum heat-insulating plate, comprise the following steps：S1：Glass microballoon, glass fibre and NACF equal proportion are mixed；S2：Mixture in S1 is thoroughly mixed with methylcellulose saturated solution, is mixed to form cotton-shaped；S3：Equably the mixture in S2 is poured on stainless steel mesh according to thickness requirement, by obtaining core material of vacuum heat insulation plate after drying, dry, cutting；S4：Core material of vacuum heat insulation plate is placed in barrier package bag, and progress vacuumizes encapsulation and obtains vacuum heat-insulating plate.Glass microballoon accounts for 30%~50% in S1；Glass fibre accounts for 49%~69%；NACF accounts for 1%~6%.Screen cloth is 60~90 mesh specifications.Glass microballoon is hollow glass micropearl.The preparation method of the vacuum heat-insulating plate of the present invention is simple and convenient, substantially increases the effect of heat insulation of vacuum heat-insulating plate, while slight big, good toughness, bent 10% or so.Meanwhile, the problem of tympanites is efficiently solved by the way of screen cloth dries drying.
Description
Technical field
The present invention relates to heat-insulating heat-preserving material field, more particularly to a kind of preparation method of vacuum heat-insulating plate.
Background technology
The application of heat-insulating heat-preserving material widely, such as packaging industry (such as organ transplant transport), refrigeration industry and building
Industry etc., current heat-insulating material is mainly by being constituted glass fibre and dusty material (such as aeroge), such as China is real
A kind of vacuum heat-insulating plate, including shell and the thermal insulation being arranged in vacuum casting are disclosed with new patent 200420053407.2
Core, the core include aerosil and glass fibre, the glass fibre be interwoven in aerosil it
Between；But the adiabatic core aerosil matter of preceding solution is crisp, it is poor to be processed into vacuum heat-insulating plate rear plate body intensity,
When being especially used in building trade, the part of nail, reinforcing bar etc easily punctures thermal insulation board, and glass fibre can expand, together
When due to the aeroge mixing effect of crushing it is bad, be difficult to disperse, it is hygroscopic, influence the effect of heat insulation of thermal insulation board and using stable
Property.When glass fibre class vacuum thermal insulation material application is in construction wall heat insulating work, broken in the links such as transport, construction
Damaging gas leakage causes vacuum heat-insulating plate expansion to cause coming off for wall body decoration surface layer to bring great potential safety hazard.
The preparation method of the vacuum heat-insulating plate of the existing core being made up of glass fibre and aeroge is typically using by respectively
After composition mixing be dehydrated etc. after conventional steps obtaining core and seeing, core is then inserted into packaging bag, be prepared by such method
Vacuum heat-insulating plate not only effect of heat insulation is general, and using in building trade fragile glass fibre can expand, and exist
Enraged the problem of.
The content of the invention
The technical problem to be solved in the present invention is to design a kind of preparation method of vacuum heat-insulating plate, solves prior art and exists
The problem of.
In order to solve the above technical problems, the preparation method of the vacuum heat-insulating plate of the present invention comprises the following steps：
S1：Glass microballoon, glass fibre and NACF equal proportion are mixed；
S2：Mixture in S1 is thoroughly mixed with methylcellulose saturated solution, is mixed to form cotton-shaped；
S3：Equably the mixture in S2 is poured on stainless steel mesh according to thickness requirement, by drying, drying, cut out
Core material of vacuum heat insulation plate is obtained after cutting；
S4：Core material of vacuum heat insulation plate is placed in barrier package bag, and progress vacuumizes encapsulation and obtains vacuum heat-insulating plate.
Further, each component mass percent in the mixture of glass microballoon, glass fibre and NACF in S1
For：Glass microballoon accounts for 30%~50%；Glass fibre accounts for 49%~69%；NACF accounts for 1%~6%.
Further, closed perlite mixing is additionally added in S1 when hybrid glass microballon, glass fibre and NACF,
And each component mass percent is：Glass microballoon accounts for 30%~50%；Glass fibre accounts for 49%~69%；NACF is accounted for
1%~6%；Closed perlite accounts for 8%~16%.Closed perlite has intensity high, and water absorption rate is low, and intensity is high, Combination is good
Deng, easily disperse the features such as, can further improve the effect of heat insulation of vacuum heat-insulating plate.
Further, the methylcellulose saturated solution is hydroxypropyl methyl cellulose saturated solution.
Further, the concentration of the hydroxypropyl methyl cellulose saturated solution is 0.2%~2%.
Further, the screen cloth is 60~90 mesh specifications.
Further, the barrier package bag is not less than 100 μm of MULTILAYER COMPOSITE high-isolation film for thickness.
Further, the MULTILAYER COMPOSITE high-isolation film (gathers with PE (polyethylene) for interior adhesion coating with Al (aluminium), VMPET
Ester aluminizer), PA (polyamide is commonly called as nylon) by dry type be combined process high-temperature high frequency thermal-adhering form.
Further, the thickness of the core material of vacuum heat insulation plate is 6mm~10mm.Core thickness is thicker, and heat insulation effect is got over
Good, the insulated panel core material thickness of building trade is general between 6mm~10mm.
Further, the glass microballoon is hollow glass micropearl.Hollow glass micropearl is a kind of by special processing
The glass microballoon of reason, it is mainly characterized by, and density is smaller compared with glass microballoon, and thermal conductivity is worse, therefore effect of heat insulation is more preferably.
Existing heat-insulated board core material is substantially filled using glass fibre and powdered or flaky material (such as aeroge), gas
Gel is crushed, and mixing effect is bad, while aeroge is hygroscopic, is difficult to disperse, can influence effect of heat insulation.And use present invention side
Glass microballoon is added in heat-insulated board core material prepared by method, the content of glass fibre is reduced, and glass microballoon is spherical shape,
There is more preferable mobility, mold filling excellent performance than the filler of sheet, needle-like or irregular shape.And glass microballoon be it is each to
The same sex, therefore the inconsistent disadvantage of different parts shrinkage factor caused by orientation will not be produced, it is ensured that the dimensionally stable of product,
Will not warpage.Meanwhile, glass microballoon is smooth not to absorb water, good dispersion.In addition, closed perlite has intensity high, water absorption rate is low,
Intensity is high, Combination is good etc., it is easily scattered the features such as, the addition of closed perlite can further improve the heat-insulated of vacuum heat-insulating plate
Effect.Therefore the core than traditional glass fibre and aeroge has more preferably effect of heat insulation.
Existing vacuum heat-insulating plate is to prevent from having in use the air of fraction can leak into vacuum heat-insulating plate
Inside, is sponged the gas of this part by placing adsorbent in vacuum insulation intralamellar part, so as to ensure vacuum heat-insulating plate
Service life.And the preparation method of the present invention adds NACF in the core of vacuum heat-insulating plate, NACF has
Very strong adsorptivity, can add less or be not added with adsorbent, meanwhile, NACF specific surface area is big, certain volume inside holding
Effect is good, further increases the effect of heat insulation of vacuum heat-insulating plate.
Beneficial effects of the present invention：The preparation method of the vacuum heat-insulating plate of the present invention is simple and convenient, and the vacuum prepared is exhausted
The core of hot plate adds glass microballoon filling, due to the high dispersive of glass microballoon, good fluidity, does not absorb water and thermal insulation
It is good, the effect of heat insulation of vacuum heat-insulating plate is substantially increased, while slight big, good toughness, bent 10% or so.In addition, closed pore
Perlite has intensity high, and water absorption rate is low, intensity is high, Combination is good etc., it is easily scattered the features such as, the addition of closed perlite can be with
Further improve the effect of heat insulation of vacuum heat-insulating plate.Meanwhile, efficiently solve asking for tympanites by the way of screen cloth dries drying
Topic.
Embodiment
Embodiment 1
The preparation method of the vacuum heat-insulating plate of the present embodiment comprises the following steps：
S1：Glass microballoon, glass fibre and NACF equal proportion are mixed；
S2：Mixture in S1 is thoroughly mixed with methylcellulose saturated solution, is mixed to form cotton-shaped；
S3：Equably the mixture in S2 is poured on stainless steel mesh according to thickness requirement, by drying, drying, cut out
Core material of vacuum heat insulation plate is obtained after cutting；
S4：Core material of vacuum heat insulation plate is placed in barrier package bag, and progress vacuumizes encapsulation and obtains vacuum heat-insulating plate.
Further, each component mass percent in the mixture of glass microballoon, glass fibre and NACF in S1
For：Glass microballoon accounts for 30%~50%；Glass fibre accounts for 49%~69%；NACF accounts for 1%~6%.In the present embodiment
Exemplified by preparing 1000kg, the NACF of 300kg glass microballoon, 690kg glass fibre and 10kg is mixed in S1.
Further, the methylcellulose saturated solution is hydroxypropyl methyl cellulose saturated solution.
Further, the concentration of the hydroxypropyl methyl cellulose saturated solution is 0.2%~2%.
Further, the screen cloth is 60~90 mesh specifications.
Further, the barrier package bag is not less than 100 μm of MULTILAYER COMPOSITE high-isolation film for thickness.
Further, the MULTILAYER COMPOSITE high-isolation film (gathers with PE (polyethylene) for interior adhesion coating with Al (aluminium), VMPET
Ester aluminizer), PA (polyamide is commonly called as nylon) by dry type be combined process high-temperature high frequency thermal-adhering form.
Further, the thickness of the core material of vacuum heat insulation plate is 6mm~10mm.
Further, the glass microballoon is hollow glass micropearl.Hollow glass micropearl is a kind of by special processing
The glass microballoon of reason, it is mainly characterized by, and density is smaller compared with glass microballoon, and thermal conductivity is worse, therefore effect of heat insulation is more preferably.
The preparation method of the vacuum heat-insulating plate of the present embodiment is simple and convenient, and the core of the vacuum heat-insulating plate prepared is added
Glass microballoon is filled, and due to the high dispersive of glass microballoon, good fluidity, is not absorbed water and thermal insulation is good, is substantially increased vacuum
The effect of heat insulation of heat-insulating shield, while slight big, good toughness, bent 10% or so.Meanwhile, by the way of screen cloth dries drying
The problem of efficiently solving tympanites.
Embodiment 2
The preparation method of the vacuum heat-insulating plate of the present embodiment comprises the following steps：
S1：Glass microballoon, glass fibre and NACF equal proportion are mixed；
S2：Mixture in S1 is thoroughly mixed with methylcellulose saturated solution, is mixed to form cotton-shaped；
S3：Equably the mixture in S2 is poured on stainless steel mesh according to thickness requirement, by drying, drying, cut out
Core material of vacuum heat insulation plate is obtained after cutting；
S4：Core material of vacuum heat insulation plate is placed in barrier package bag, and progress vacuumizes encapsulation and obtains vacuum heat-insulating plate.
Further, each component mass percent in the mixture of glass microballoon, glass fibre and NACF in S1
For：Glass microballoon accounts for 30%~50%；Glass fibre accounts for 49%~69%；NACF accounts for 1%~6%.In the present embodiment
Exemplified by preparing 1000kg, the NACF of 350kg glass microballoon, 620kg glass fibre and 30kg is mixed in S1.
Further, the methylcellulose saturated solution is hydroxypropyl methyl cellulose saturated solution.
Further, the concentration of the hydroxypropyl methyl cellulose saturated solution is 0.2%~2%.
Further, the screen cloth is 60~90 mesh specifications.
Further, the barrier package bag is not less than 100 μm of MULTILAYER COMPOSITE high-isolation film for thickness.
Further, the MULTILAYER COMPOSITE high-isolation film (gathers with PE (polyethylene) for interior adhesion coating with Al (aluminium), VMPET
Ester aluminizer), PA (polyamide is commonly called as nylon) by dry type be combined process high-temperature high frequency thermal-adhering form.
Further, the thickness of the core material of vacuum heat insulation plate is 6mm~10mm.
Further, the glass microballoon is hollow glass micropearl.Hollow glass micropearl is a kind of by special processing
The glass microballoon of reason, it is mainly characterized by, and density is smaller compared with glass microballoon, and thermal conductivity is worse, therefore effect of heat insulation is more preferably.
The preparation method of the vacuum heat-insulating plate of the present embodiment is simple and convenient, and the core of the vacuum heat-insulating plate prepared is added
Glass microballoon is filled, and due to the high dispersive of glass microballoon, good fluidity, is not absorbed water and thermal insulation is good, is substantially increased vacuum
The effect of heat insulation of heat-insulating shield, while slight big, good toughness, bent 10% or so.Meanwhile, by the way of screen cloth dries drying
The problem of efficiently solving tympanites.
Embodiment 3
The preparation method of the vacuum heat-insulating plate of the present embodiment comprises the following steps：
S1：Glass microballoon, glass fibre and NACF equal proportion are mixed；
S2：Mixture in S1 is thoroughly mixed with methylcellulose saturated solution, is mixed to form cotton-shaped；
S3：Equably the mixture in S2 is poured on stainless steel mesh according to thickness requirement, by drying, drying, cut out
Core material of vacuum heat insulation plate is obtained after cutting；
S4：Core material of vacuum heat insulation plate is placed in barrier package bag, and progress vacuumizes encapsulation and obtains vacuum heat-insulating plate.
Further, each component mass percent in the mixture of glass microballoon, glass fibre and NACF in S1
For：Glass microballoon accounts for 30%~50%；Glass fibre accounts for 49%~69%；NACF accounts for 1%~6%.In the present embodiment
Exemplified by preparing 1000kg, the NACF of 400kg glass microballoon, 540kg glass fibre and 60kg is mixed in S1.
Further, the methylcellulose saturated solution is hydroxypropyl methyl cellulose saturated solution.
Further, the concentration of the hydroxypropyl methyl cellulose saturated solution is 0.2%~2%.
Further, the screen cloth is 60~90 mesh specifications.
Further, the barrier package bag is not less than 100 μm of MULTILAYER COMPOSITE high-isolation film for thickness.
Further, the MULTILAYER COMPOSITE high-isolation film (gathers with PE (polyethylene) for interior adhesion coating with Al (aluminium), VMPET
Ester aluminizer), PA (polyamide is commonly called as nylon) by dry type be combined process high-temperature high frequency thermal-adhering form.
Further, the thickness of the core material of vacuum heat insulation plate is 6mm~10mm.
Further, the glass microballoon is hollow glass micropearl.Hollow glass micropearl is a kind of by special processing
The glass microballoon of reason, it is mainly characterized by, and density is smaller compared with glass microballoon, and thermal conductivity is worse, therefore effect of heat insulation is more preferably.
The preparation method of the vacuum heat-insulating plate of the present embodiment is simple and convenient, and the core of the vacuum heat-insulating plate prepared is added
Glass microballoon is filled, and due to the high dispersive of glass microballoon, good fluidity, is not absorbed water and thermal insulation is good, is substantially increased vacuum
The effect of heat insulation of heat-insulating shield, while slight big, good toughness, bent 10% or so.Meanwhile, by the way of screen cloth dries drying
The problem of efficiently solving tympanites.
Embodiment 4
The preparation method of the vacuum heat-insulating plate of the present embodiment comprises the following steps：
S1：Glass microballoon, glass fibre and NACF equal proportion are mixed；
S2：Mixture in S1 is thoroughly mixed with methylcellulose saturated solution, is mixed to form cotton-shaped；
S3：Equably the mixture in S2 is poured on stainless steel mesh according to thickness requirement, by drying, drying, cut out
Core material of vacuum heat insulation plate is obtained after cutting；
S4：Core material of vacuum heat insulation plate is placed in barrier package bag, and progress vacuumizes encapsulation and obtains vacuum heat-insulating plate.
Further, each component mass percent in the mixture of glass microballoon, glass fibre and NACF in S1
For：Glass microballoon accounts for 30%~50%；Glass fibre accounts for 49%~69%；NACF accounts for 1%~6%.In the present embodiment
Exemplified by preparing 1000kg, the NACF of 450kg glass microballoon, 510kg glass fibre and 40kg is mixed in S1.
Further, the methylcellulose saturated solution is hydroxypropyl methyl cellulose saturated solution.
Further, the concentration of the hydroxypropyl methyl cellulose saturated solution is 0.2%~2%.
Further, the screen cloth is 60~90 mesh specifications.
Further, the barrier package bag is not less than 100 μm of MULTILAYER COMPOSITE high-isolation film for thickness.
Further, the MULTILAYER COMPOSITE high-isolation film (gathers with PE (polyethylene) for interior adhesion coating with Al (aluminium), VMPET
Ester aluminizer), PA (polyamide is commonly called as nylon) by dry type be combined process high-temperature high frequency thermal-adhering form.
Further, the thickness of the core material of vacuum heat insulation plate is 6mm~10mm.
Further, the glass microballoon is hollow glass micropearl.Hollow glass micropearl is a kind of by special processing
The glass microballoon of reason, it is mainly characterized by, and density is smaller compared with glass microballoon, and thermal conductivity is worse, therefore effect of heat insulation is more preferably.
The preparation method of the vacuum heat-insulating plate of the present embodiment is simple and convenient, and the core of the vacuum heat-insulating plate prepared is added
Glass microballoon is filled, and due to the high dispersive of glass microballoon, good fluidity, is not absorbed water and thermal insulation is good, is substantially increased vacuum
The effect of heat insulation of heat-insulating shield, while slight big, good toughness, bent 10% or so.Meanwhile, by the way of screen cloth dries drying
The problem of efficiently solving tympanites.
Embodiment 5
The preparation method of the vacuum heat-insulating plate of the present embodiment comprises the following steps：
S1：Glass microballoon, glass fibre and NACF equal proportion are mixed；
S2：Mixture in S1 is thoroughly mixed with methylcellulose saturated solution, is mixed to form cotton-shaped；
S3：Equably the mixture in S2 is poured on stainless steel mesh according to thickness requirement, by drying, drying, cut out
Core material of vacuum heat insulation plate is obtained after cutting；
S4：Core material of vacuum heat insulation plate is placed in barrier package bag, and progress vacuumizes encapsulation and obtains vacuum heat-insulating plate.
Further, each component mass percent in the mixture of glass microballoon, glass fibre and NACF in S1
For：Glass microballoon accounts for 30%~50%；Glass fibre accounts for 49%~69%；NACF accounts for 1%~6%.In the present embodiment
Exemplified by preparing 1000kg, the NACF of 500kg glass microballoon, 490kg glass fibre and 10kg is mixed in S1.
Further, the methylcellulose saturated solution is hydroxypropyl methyl cellulose saturated solution.
Further, the concentration of the hydroxypropyl methyl cellulose saturated solution is 0.2%~2%.
Further, the screen cloth is 60~90 mesh specifications.
Further, the barrier package bag is not less than 100 μm of MULTILAYER COMPOSITE high-isolation film for thickness.
Further, the MULTILAYER COMPOSITE high-isolation film (gathers with PE (polyethylene) for interior adhesion coating with Al (aluminium), VMPET
Ester aluminizer), PA (polyamide is commonly called as nylon) by dry type be combined process high-temperature high frequency thermal-adhering form.
Further, the thickness of the core material of vacuum heat insulation plate is 6mm~10mm.
Further, the glass microballoon is hollow glass micropearl.Hollow glass micropearl is a kind of by special processing
The glass microballoon of reason, it is mainly characterized by, and density is smaller compared with glass microballoon, and thermal conductivity is worse, therefore effect of heat insulation is more preferably.
The preparation method of the vacuum heat-insulating plate of the present embodiment is simple and convenient, and the core of the vacuum heat-insulating plate prepared is added
Glass microballoon is filled, and due to the high dispersive of glass microballoon, good fluidity, is not absorbed water and thermal insulation is good, is substantially increased vacuum
The effect of heat insulation of heat-insulating shield, while slight big, good toughness, bent 10% or so.Meanwhile, by the way of screen cloth dries drying
The problem of efficiently solving tympanites.
Embodiment 6
The preparation method of the vacuum heat-insulating plate of the present embodiment comprises the following steps：
S1：Glass microballoon, glass fibre and NACF equal proportion are mixed；
S2：Mixture in S1 is thoroughly mixed with methylcellulose saturated solution, is mixed to form cotton-shaped；
S3：Equably the mixture in S2 is poured on stainless steel mesh according to thickness requirement, by drying, drying, cut out
Core material of vacuum heat insulation plate is obtained after cutting；
S4：Core material of vacuum heat insulation plate is placed in barrier package bag, and progress vacuumizes encapsulation and obtains vacuum heat-insulating plate.
The present embodiment preferably, is additionally added closed pore treasure in S1 when hybrid glass microballon, glass fibre and NACF
Zhu Yan is mixed, and closed perlite has intensity high, and water absorption rate is low, intensity is high, Combination is good etc., it is easily scattered the features such as, Ke Yijin
One step improves the effect of heat insulation of vacuum heat-insulating plate.Glass microballoon in S1, glass fibre, active carbon fibre peacekeeping closed perlite it is mixed
Each component mass percent is in compound：Glass microballoon accounts for 30%~50%；Glass fibre accounts for 49%~69%；NACF
Account for 1%~6%；Closed perlite accounts for 8%~16%.In the present embodiment exemplified by preparing 1000kg, by 300kg glass in S1
Microballon, 510kg glass fibre, 3kg active carbon fibre peacekeeping 16kg closed perlite mixing.
Further, the methylcellulose saturated solution is hydroxypropyl methyl cellulose saturated solution.
Further, the concentration of the hydroxypropyl methyl cellulose saturated solution is 0.2%~2%.
Further, the screen cloth is 60~90 mesh specifications.
Further, the barrier package bag is not less than 100 μm of MULTILAYER COMPOSITE high-isolation film for thickness.
Further, the MULTILAYER COMPOSITE high-isolation film (gathers with PE (polyethylene) for interior adhesion coating with Al (aluminium), VMPET
Ester aluminizer), PA (polyamide is commonly called as nylon) by dry type be combined process high-temperature high frequency thermal-adhering form.
Further, the thickness of the core material of vacuum heat insulation plate is 6mm~10mm.
Further, the glass microballoon is hollow glass micropearl.Hollow glass micropearl is a kind of by special processing
The glass microballoon of reason, it is mainly characterized by, and density is smaller compared with glass microballoon, and thermal conductivity is worse, therefore effect of heat insulation is more preferably.
The preparation method of the vacuum heat-insulating plate of the present embodiment is simple and convenient, and the core of the vacuum heat-insulating plate prepared is added
Glass microballoon is filled, and due to the high dispersive of glass microballoon, good fluidity, is not absorbed water and thermal insulation is good, is substantially increased vacuum
The effect of heat insulation of heat-insulating shield, while slight big, good toughness, bent 10% or so.In addition, closed perlite has intensity high,
Water absorption rate is low, intensity is high, Combination is good etc., it is easily scattered the features such as, it is exhausted that the addition of closed perlite can further improve vacuum
The effect of heat insulation of hot plate.Meanwhile, the problem of tympanites is efficiently solved by the way of screen cloth dries drying.
Embodiment 7
The preparation method of the vacuum heat-insulating plate of the present embodiment comprises the following steps：
S1：Glass microballoon, glass fibre and NACF equal proportion are mixed；
S2：Mixture in S1 is thoroughly mixed with methylcellulose saturated solution, is mixed to form cotton-shaped；
S3：Equably the mixture in S2 is poured on stainless steel mesh according to thickness requirement, by drying, drying, cut out
Core material of vacuum heat insulation plate is obtained after cutting；
S4：Core material of vacuum heat insulation plate is placed in barrier package bag, and progress vacuumizes encapsulation and obtains vacuum heat-insulating plate.
The present embodiment preferably, is additionally added closed pore treasure in S1 when hybrid glass microballon, glass fibre and NACF
Zhu Yan is mixed, and closed perlite has intensity high, and water absorption rate is low, intensity is high, Combination is good etc., it is easily scattered the features such as, Ke Yijin
One step improves the effect of heat insulation of vacuum heat-insulating plate.Glass microballoon in S1, glass fibre, active carbon fibre peacekeeping closed perlite it is mixed
Each component mass percent is in compound：Glass microballoon accounts for 30%~50%；Glass fibre accounts for 49%~69%；NACF
Account for 1%~6%；Closed perlite accounts for 8%~16%.In the present embodiment exemplified by preparing 1000kg, by 380kg glass in S1
Microballon, 480kg glass fibre, 6kg active carbon fibre peacekeeping 8kg closed perlite mixing.
Further, the methylcellulose saturated solution is hydroxypropyl methyl cellulose saturated solution.
Further, the concentration of the hydroxypropyl methyl cellulose saturated solution is 0.2%~2%.
Further, the screen cloth is 60~90 mesh specifications.
Further, the barrier package bag is not less than 100 μm of MULTILAYER COMPOSITE high-isolation film for thickness.
Further, the MULTILAYER COMPOSITE high-isolation film (gathers with PE (polyethylene) for interior adhesion coating with Al (aluminium), VMPET
Ester aluminizer), PA (polyamide is commonly called as nylon) by dry type be combined process high-temperature high frequency thermal-adhering form.
Further, the thickness of the core material of vacuum heat insulation plate is 6mm~10mm.
Further, the glass microballoon is hollow glass micropearl.Hollow glass micropearl is a kind of by special processing
The glass microballoon of reason, it is mainly characterized by, and density is smaller compared with glass microballoon, and thermal conductivity is worse, therefore effect of heat insulation is more preferably.
The preparation method of the vacuum heat-insulating plate of the present embodiment is simple and convenient, and the core of the vacuum heat-insulating plate prepared is added
Glass microballoon is filled, and due to the high dispersive of glass microballoon, good fluidity, is not absorbed water and thermal insulation is good, is substantially increased vacuum
The effect of heat insulation of heat-insulating shield, while slight big, good toughness, bent 10% or so.In addition, closed perlite has intensity high,
Water absorption rate is low, intensity is high, Combination is good etc., it is easily scattered the features such as, it is exhausted that the addition of closed perlite can further improve vacuum
The effect of heat insulation of hot plate.Meanwhile, the problem of tympanites is efficiently solved by the way of screen cloth dries drying.
Embodiment 8
The preparation method of the vacuum heat-insulating plate of the present embodiment comprises the following steps：
S1：Glass microballoon, glass fibre and NACF equal proportion are mixed；
S2：Mixture in S1 is thoroughly mixed with methylcellulose saturated solution, is mixed to form cotton-shaped；
S3：Equably the mixture in S2 is poured on stainless steel mesh according to thickness requirement, by drying, drying, cut out
Core material of vacuum heat insulation plate is obtained after cutting；
S4：Core material of vacuum heat insulation plate is placed in barrier package bag, and progress vacuumizes encapsulation and obtains vacuum heat-insulating plate.
The present embodiment preferably, is additionally added closed pore treasure in S1 when hybrid glass microballon, glass fibre and NACF
Zhu Yan is mixed, and closed perlite has intensity high, and water absorption rate is low, intensity is high, Combination is good etc., it is easily scattered the features such as, Ke Yijin
One step improves the effect of heat insulation of vacuum heat-insulating plate.Glass microballoon in S1, glass fibre, active carbon fibre peacekeeping closed perlite it is mixed
Each component mass percent is in compound：Glass microballoon accounts for 30%~50%；Glass fibre accounts for 49%~69%；NACF
Account for 1%~6%；Closed perlite accounts for 8%~16%.In the present embodiment exemplified by preparing 1000kg, by 410kg glass in S1
Microballon, 450kg glass fibre, 2kg active carbon fibre peacekeeping 12kg closed perlite mixing.
Further, the methylcellulose saturated solution is hydroxypropyl methyl cellulose saturated solution.
Further, the concentration of the hydroxypropyl methyl cellulose saturated solution is 0.2%~2%.
Further, the screen cloth is 60~90 mesh specifications.
Further, the barrier package bag is not less than 100 μm of MULTILAYER COMPOSITE high-isolation film for thickness.
Further, the MULTILAYER COMPOSITE high-isolation film (gathers with PE (polyethylene) for interior adhesion coating with Al (aluminium), VMPET
Ester aluminizer), PA (polyamide is commonly called as nylon) by dry type be combined process high-temperature high frequency thermal-adhering form.
Further, the thickness of the core material of vacuum heat insulation plate is 6mm~10mm.
Further, the glass microballoon is hollow glass micropearl.Hollow glass micropearl is a kind of by special processing
The glass microballoon of reason, it is mainly characterized by, and density is smaller compared with glass microballoon, and thermal conductivity is worse, therefore effect of heat insulation is more preferably.
The preparation method of the vacuum heat-insulating plate of the present embodiment is simple and convenient, and the core of the vacuum heat-insulating plate prepared is added
Glass microballoon is filled, and due to the high dispersive of glass microballoon, good fluidity, is not absorbed water and thermal insulation is good, is substantially increased vacuum
The effect of heat insulation of heat-insulating shield, while slight big, good toughness, bent 10% or so.In addition, closed perlite has intensity high,
Water absorption rate is low, intensity is high, Combination is good etc., it is easily scattered the features such as, it is exhausted that the addition of closed perlite can further improve vacuum
The effect of heat insulation of hot plate.Meanwhile, the problem of tympanites is efficiently solved by the way of screen cloth dries drying.
Embodiment 9
Performance test is thermally shielded to the vacuum heat-insulating plate of the preparation method using previous embodiment, while introducing existing glass
The reference of the vacuum heat-insulating plate of glass fiber and aeroge, carries out parameter comparison, and object of reference chooses Qingdao Ke Rui Group Co., Ltd
STP vacuum heat-insulating plates, production code member is SN20160425153647951, its thermal conductivity factor be 8m W/ (mK), parameter is plucked
From Qingdao Ke Rui Group Co., Ltd official website http://www.cncreek.cn/html/cn/：Series of products → STP series →
STP (VIPB) vacuum heat-insulating plate, vacuum heat-insulating plate prepared by the parameter and the present processes carries out performance comparison, to implementing
The vacuum heat-insulating plate prepared in 1~embodiment of example 8 is tested, and measures its thermal conductivity factor as shown in the table：
| Type | Thermal conductivity factor m W/ (mK) | Type | Thermal conductivity factor m W/ (mK) |
| Embodiment 1 | 5.033 | Embodiment 5 | 3.741 |
| Embodiment 2 | 4.976 | Embodiment 6 | 4.625 |
| Embodiment 3 | 3.506 | Embodiment 7 | 3.286 |
| Embodiment 4 | 3.023 | Embodiment 8 | 2.743 |
It can be learnt by upper table, the vacuum heat-insulating plate heat conduction system prepared using the inventive method is low, existing compared in the market
Vacuum heat-insulating plate has more superior thermal conductivity factor, and thermal insulation is good, and heat-proof quality at least improves more than 37%, and highest can be improved
65%, it can be widely applied to each field, wide market.
The preparation method of the vacuum heat-insulating plate of the present invention is simple and convenient, and the core of the vacuum heat-insulating plate prepared adds glass
Glass microballon is filled, and due to the high dispersive of glass microballoon, good fluidity, is not absorbed water and thermal insulation is good, is substantially increased vacuum exhausted
The effect of heat insulation of hot plate, while slight big, good toughness, bent 10% or so.In addition, closed perlite has intensity high, inhale
Water rate is low, intensity is high, Combination is good etc., it is easily scattered the features such as, the addition of closed perlite can further improve vacuum insulation
The effect of heat insulation of plate.Meanwhile, the problem of tympanites is efficiently solved by the way of screen cloth dries drying.
Many details are elaborated in the above description to fully understand the present invention.But above description is only
Presently preferred embodiments of the present invention, the invention can be embodied in many other ways as described herein, therefore this
Invention is not limited by specific implementation disclosed above.Any those skilled in the art are not departing from the technology of the present invention simultaneously
In the case of aspects, all make many possible to technical solution of the present invention using the methods and techniques content of the disclosure above
Change and modify, or be revised as the equivalent embodiment of equivalent variations, such as changed according to the difference of vacuum heat-insulating plate application field
Thickness of core etc..Every content without departing from technical solution of the present invention, the technical spirit according to the present invention is to above example
Any simple modifications, equivalents, and modifications done, still fall within technical solution of the present invention protection in the range of.
Claims (3)
1. a kind of preparation method of vacuum heat-insulating plate, it is characterised in that：Comprise the following steps：
S1：Three kinds of materials of NACF of 300kg hollow glass micropearl, 690kg glass fibre and 10kg are mixed
Close, without adsorbent；
S2：Mixture in S1 is sufficiently stirred for mixing with concentration for 0.2%~2% hydroxypropyl methyl cellulose saturated solution
Close；
S3：Equably the mixture in S2 is poured on stainless steel mesh according to thickness requirement, after drying, drying, cut
Obtain core material of vacuum heat insulation plate, screen cloth dries the mode of drying to solve enraged problem, described stainless steel mesh for 60~
90 mesh specifications；6mm~10mm core material of vacuum heat insulation plate is made；
S4：Core material of vacuum heat insulation plate is placed in barrier package bag, and progress vacuumizes encapsulation and obtains slight big, good toughness can
The vacuum heat-insulating plate of bending 10% or so.
2. the preparation method of vacuum heat-insulating plate according to claim 1, it is characterised in that：The barrier package bag is thickness
MULTILAYER COMPOSITE high-isolation film not less than 100 μm.
3. the preparation method of vacuum heat-insulating plate according to claim 2, it is characterised in that：The MULTILAYER COMPOSITE high-barrier is thin
Film is formed using PE as interior adhesion coating with Al, VMPET, PA process high-temperature high frequency thermal-adhering being combined by dry type.
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| CN106838548A (en) * | 2017-03-16 | 2017-06-13 | 宜兴市四通家电配件有限公司 | A kind of vacuum insulation panel and preparation method thereof |
| CN111622016A (en) * | 2020-04-30 | 2020-09-04 | 南京珈时新材料科技有限公司 | Pressure-resistant heat-insulating paper containing hollow porous silica microspheres and preparation method thereof |
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