CN103319149A - Low-heat-conductivity heat-insulating core plate in vacuum insulated panel for construction, and preparation method thereof - Google Patents
Low-heat-conductivity heat-insulating core plate in vacuum insulated panel for construction, and preparation method thereof Download PDFInfo
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- CN103319149A CN103319149A CN201210075489XA CN201210075489A CN103319149A CN 103319149 A CN103319149 A CN 103319149A CN 201210075489X A CN201210075489X A CN 201210075489XA CN 201210075489 A CN201210075489 A CN 201210075489A CN 103319149 A CN103319149 A CN 103319149A
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- central layer
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- insulating plate
- building
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Abstract
The invention discloses a low-heat-conductivity heat-insulating core plate in a vacuum insulated panel for construction, and a preparation method thereof. The heat-preserving core plate is prepared by employing microsilica with steady performance and without gas releasing, fumed silica, short-cut glass fiber and a vacuum active stabilizer through processes of physically mixing, drying, moulding and distribution, pressing and coating. The heat-preserving core plate comprises the following formula: by weight, 48 wt%-68 wt% of microsilica, 30 wt%-50 wt% of fumed silica, 0.5 wt%-1 wt% of short-cut glass fiber, and 1 wt%-2 wt% of the vacuum active stabilizer. The heat-insulating core plate has a low thermal conductivity, extremely high heat insulation and preservation, weatherability and oxidation resistance; and the vacuum insulated panel for construction prepared by utilizing the heat-insulating core plate is simple in structure, ultrathin and lightweight, environment-friendly and convenient, and same in the service life with the construction.
Description
Technical field
The present invention relates to a kind of building vacuum heat-insulating shield, relate in particular to low heat conductivity insulation central layer and preparation technology thereof in a kind of vacuum heat-insulating plate for building.
Background technology
At present, in the building operation such as residential building, office space, keep certain temperature in order better to make buildings, need to heat-insulating shield be installed at the exterior wall of buildings, with heat-insulating shield buildings is wrapped up, thereby reduce the loss of building internal thermal energy.Along with energy-conservation requirement is improved, traditional heat-insulating shield can not satisfy efficiently, low-carbon (LC), energy-conservation requirement, therefore vacuum heat-insulating plate has been introduced into the building heat preservation field with its fire prevention, advantage efficient, low-carbon (LC), but the central layer that present vacuum heat-insulating plate for building is commonly used adopts the materials such as glass wool, aluminum silicate fiber more, energy consumption was large when these materials itself were produced, high to the vacuum requirement, cost is high; But also flexible type, not anti-extruding, antioxidant property is low, the sheet material life-span is short; Cause certain disadvantageous effect to using environment.
Summary of the invention
In order to overcome defects, the invention provides low heat conductivity insulation central layer and preparation technology thereof in a kind of vacuum heat-insulating plate for building, heat preservation and insulation, weather resistance and antioxidant property that this insulation central layer thermal conductivity is low, have superelevation; And simple, the ultra-thin lightweight of the vacuum heat insulating plate structure for building that utilizes this insulation central layer to make, environment friendly convenient, and and same life-span of building.
The present invention for the technical scheme that solves its technical problem and adopt is: the low heat conductivity insulation central layer in a kind of vacuum heat-insulating plate for building by weight, has following prescription: SILICA FUME 48wt%～68wt%; Aerosil powder 30wt%～50wt%; Glass chopped silk 0.5wt%～1wt%; Vacuum active stablizer 1wt%～2wt%.
As a further improvement on the present invention, described vacuum active stablizer is the particulate hollow material, and its internal diameter is 1 μ m～3 μ m.
As a further improvement on the present invention, the tap density of described SILICA FUME is 160Kg/m
3～250Kg/m
3, its median size is 0.1 μ m～0.3 μ m; The tap density of described aerosil powder is 60Kg/m
3～100Kg/m
3, its median size is 0.5 μ m～3 μ m; The length of described glass chopped silk is 6～12mm, and its Fibre diameter is 6 μ m～13 μ m.
The present invention also provides the preparation technology of the low heat conductivity insulation central layer in a kind of described vacuum heat-insulating plate for building, and described technique comprises the steps:
(1) batching: mix in SILICA FUME, aerosil powder, glass chopped silk and the vacuum active stablizer input mixing machine with described recipe ratio;
(2) oven dry: the mixing raw material that stirs is dried, and bake out temperature is controlled at 100 ℃～110 ℃, and the moisture of per 10 minutes sampling and measuring mixing raw materials in the drying course is until moisture controlled gets final product with interior 0.5%;
(3) moulding cloth: the mixing raw material in the step (2) is injected mould, and the surface is struck off;
(4) compacting: mould be positioned in the press be pressed, the speed control of press in 3cm/s～5cm/s, pressure-controlling at 30T/m
2～50T/m
2
(5) parcel: the central layer of compression moulding is taken out from mould, and coat layer of non-woven fabric in the periphery of central layer, namely obtain the low heat conductivity insulation central layer in the described vacuum heat-insulating plate for building.
As a further improvement on the present invention, the grammes per square metre of the non-woven fabrics in the step (5) is 30g/m
2～70g/m
2The non-woven fabrics itself that the present invention adopts possesses the low heat conductivity energy, can either increase low heat conductivity and the tensile strength of insulation central layer; And in vacuum, gas can permeate, solid matter then can not pass through, and creates conditions for vacuumizing.
The invention has the beneficial effects as follows: this insulation central layer adopts stable performance, the SILICA FUME that does not discharge gas, aerosil, glass chopped silk and vacuum active stablizer to make by physical mixed, oven dry, moulding cloth, compacting and packing technology, heat preservation and insulation, weather resistance and antioxidant property that this insulation central layer thermal conductivity is low, have superelevation; And simple, the ultra-thin lightweight of the vacuum heat insulating plate structure for building that utilizes this insulation central layer to make, environment friendly convenient, and have air-breathing and vacuum active stablizer absorbent function because this insulation central layer has added in making processes, thereby this vacuum heat-insulating plate for building can be good at adsorbing gas and moisture remaining and that penetrate in the insulation central layer, and then guarantees to reach the life in 50 years.
Embodiment
Below in conjunction with specific embodiment the present invention is described in further details, but the invention is not restricted to these embodiment.
Embodiment 1～3 provides the preparation method of the low heat conductivity insulation central layer in the present invention's vacuum heat-insulating plate for building.
Embodiment 1:
Low heat conductivity insulation central layer in the present embodiment vacuum heat-insulating plate for building prepares as follows:
At first 48 parts of SILICA FUME, 49 parts of aerosil powder, 1 part of glass chopped silk and 2 parts of vacuum active stablizers are put in the mixing machine and mixed; The mixing raw material that stirs is dried, and bake out temperature is controlled at 100 ℃～110 ℃, needs the moisture of sampling and measuring mixing raw material in per 10 minutes in drying course, until moisture controlled gets final product with interior 0.5%; Then mixing raw material is injected mould, after the surface of mixing raw material is struck off, mould is positioned in the press is pressed, the speed control of press in 3cm/s～5cm/s, pressure-controlling at 30T/m
2～50T/m
2Central layer with compression moulding takes out from mould at last, and coats layer of non-woven fabric in the periphery of central layer, namely obtains the low heat conductivity insulation central layer in the described vacuum heat-insulating plate for building.
Embodiment 2:
Low heat conductivity insulation central layer in the present embodiment vacuum heat-insulating plate for building prepares as follows:
At first 58 parts of SILICA FUME, 40 parts of aerosil powder, 0.5 part of glass chopped silk and 1.5 parts of vacuum active stablizers are put in the mixing machine and mixed; The mixing raw material that stirs is dried, and bake out temperature is controlled at 100 ℃～110 ℃, needs the moisture of sampling and measuring mixing raw material in per 10 minutes in drying course, until moisture controlled gets final product with interior 0.5%; Then mixing raw material is injected mould, after the surface of mixing raw material is struck off, mould is positioned in the press is pressed, the speed control of press in 3cm/s～5cm/s, pressure-controlling at 30T/m
2～50T/m
2Central layer with compression moulding takes out from mould at last, and coats layer of non-woven fabric in the periphery of central layer, namely obtains the low heat conductivity insulation central layer in the described vacuum heat-insulating plate for building.
Embodiment 3:
Low heat conductivity insulation central layer in the present embodiment vacuum heat-insulating plate for building prepares as follows:
At first 68 parts of SILICA FUME, 30.5 parts of aerosil powder, 0.5 part of glass chopped silk and 1 part of vacuum active stablizer are put in the mixing machine and mixed; The mixing raw material that stirs is dried, and bake out temperature is controlled at 100 ℃～110 ℃, needs the moisture of sampling and measuring mixing raw material in per 10 minutes in drying course, until moisture controlled gets final product with interior 0.5%; Then mixing raw material is injected mould, after the surface of mixing raw material is struck off, mould is positioned in the press is pressed, the speed control of press in 3cm/s～5cm/s, pressure-controlling at 30T/m
2～50T/m
2Central layer with compression moulding takes out from mould at last, and coats layer of non-woven fabric in the periphery of central layer, namely obtains the low heat conductivity insulation central layer in the described vacuum heat-insulating plate for building.
The low heat conductivity insulation central layer of embodiment 1～3 preparation is respectively charged in the high-barrier vacuum bag, and carries out namely making vacuum heat-insulating plate for building after the vacuum seal operation, its preparation process is well known to those skilled in the art, therefore do not elaborate at this.
Respectively above-mentioned vacuum heat-insulating plate for building and traditional vacuum heat-insulating shield are carried out thickness and Determination of conductive coefficients, get its mean value.Test result is as follows: table 2 is for utilizing the present invention to be incubated vacuum heat-insulating plate for building that central layer makes and the thickness contrast table of traditional vacuum heat-insulating shield; Table 3 is for utilizing the present invention to be incubated vacuum heat-insulating plate for building that central layer makes and the thermal conductivity contrast table of traditional vacuum heat-insulating shield.
Table 2 is for utilizing the present invention to be incubated vacuum heat-insulating plate for building that central layer makes and the thickness contrast table of traditional vacuum heat-insulating shield
Table 3 is for utilizing the present invention to be incubated vacuum heat-insulating plate for building that central layer makes and the thermal conductivity contrast table of traditional vacuum heat-insulating shield
From table 2 and 3, as seen, adopt the present invention to be incubated the thermal conductivity of the vacuum heat-insulating plate for building that central layer makes low, and the heat preservation and insulation with superelevation; And because the insulation central layer among the present invention has added the vacuum active stablizer with air-breathing, suction and anti-oxidant function in making processes, thereby can be good at adsorbing gas and moisture remaining and that penetrate in the insulation central layer, therefore relatively need place the traditional vacuum heat-insulating shield of a large amount of adsorbents and siccative, the present invention's lightweight simple in structure, ultra-thin, convenient construction is installed.
Above the present invention has been done detailed description; its purpose is to allow those of ordinary skill in the art can understand content of the present invention and is implemented; can not limit protection scope of the present invention with this; the equivalence that all spirit according to the present invention are done changes or modifies, and all should be encompassed in protection scope of the present invention.
Claims (5)
1. the low heat conductivity insulation central layer that vacuum heat-insulating plate for building is interior is characterized in that: by weight, have following prescription: SILICA FUME 48wt%～68wt%; Aerosil powder 30wt%～50wt%; Glass chopped silk 0.5wt%～1wt%; Vacuum active stablizer 1wt%～2wt%.
2. the low heat conductivity in the vacuum heat-insulating plate for building according to claim 1 is incubated central layer, and it is characterized in that: described vacuum active stablizer is the particulate hollow material, and its internal diameter is 1 μ m～3 μ m.
3. the low heat conductivity in the vacuum heat-insulating plate for building according to claim 1 is incubated central layer, and it is characterized in that: the tap density of described SILICA FUME is 160Kg/m
3～250Kg/m
3, its median size is 0.1 μ m～0.3 μ m; The tap density of described aerosil powder is 60Kg/m
3～100Kg/m
3, its median size is 0.5 μ m～3 μ m; The length of described glass chopped silk is 6～12mm, and its Fibre diameter is 6 μ m～13 μ m.
4. the preparation technology of the insulation of the low heat conductivity in each described vacuum heat-insulating plate for building central layer in 3 according to claim 1, it is characterized in that: described technique comprises the steps:
(1) batching: mix in SILICA FUME, aerosil powder, glass chopped silk and the vacuum active stablizer input mixing machine with described recipe ratio;
(2) oven dry: the mixing raw material that stirs is dried, and bake out temperature is controlled at 100 ℃～110 ℃, and the moisture of per 10 minutes sampling and measuring mixing raw materials in the drying course is until moisture controlled gets final product with interior 0.5%;
(3) moulding cloth: the mixing raw material in the step (2) is injected mould, and the surface is struck off;
(4) compacting: mould be positioned in the press be pressed, the speed control of press in 3cm/s～5cm/s, pressure-controlling at 30T/m
2～50T/m
2
(5) parcel: the central layer of compression moulding is taken out from mould, and coat layer of non-woven fabric in the periphery of central layer, namely obtain the low heat conductivity insulation central layer in the described vacuum heat-insulating plate for building.
5. the low heat conductivity in the vacuum heat-insulating plate for building according to claim 4 is incubated the preparation technology of central layer, and it is characterized in that: the grammes per square metre of the non-woven fabrics in the step (5) is 30g/m
2～70g/m
2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210075489.XA CN103319149B (en) | 2012-03-21 | 2012-03-21 | Low-heat-conductivity heat-insulating core plate in vacuum insulated panel for construction, and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210075489.XA CN103319149B (en) | 2012-03-21 | 2012-03-21 | Low-heat-conductivity heat-insulating core plate in vacuum insulated panel for construction, and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103319149A true CN103319149A (en) | 2013-09-25 |
| CN103319149B CN103319149B (en) | 2014-09-03 |
Family
ID=49188248
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210075489.XA Expired - Fee Related CN103319149B (en) | 2012-03-21 | 2012-03-21 | Low-heat-conductivity heat-insulating core plate in vacuum insulated panel for construction, and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104976865A (en) * | 2015-06-25 | 2015-10-14 | 滁州银兴新材料科技有限公司 | Drying method of silicon dioxide vacuum insulated panel |
| CN108424095A (en) * | 2017-03-18 | 2018-08-21 | 黄河科技学院 | A kind of vacuum heat-insulating plate core material for building |
| CN112208160A (en) * | 2019-10-23 | 2021-01-12 | 四川迈科隆真空新材料有限公司 | Vacuum heat insulation plate with braided body skeleton structure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1145769A (en) * | 1995-12-28 | 1997-03-26 | 财团法人工业技术研究院 | Vacuum heat-insulating container |
| CN101691899A (en) * | 2009-10-01 | 2010-04-07 | 福建赛特新材料有限公司 | Composite core material vacuum insulation panel and preparation method thereof |
-
2012
- 2012-03-21 CN CN201210075489.XA patent/CN103319149B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1145769A (en) * | 1995-12-28 | 1997-03-26 | 财团法人工业技术研究院 | Vacuum heat-insulating container |
| CN101691899A (en) * | 2009-10-01 | 2010-04-07 | 福建赛特新材料有限公司 | Composite core material vacuum insulation panel and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104976865A (en) * | 2015-06-25 | 2015-10-14 | 滁州银兴新材料科技有限公司 | Drying method of silicon dioxide vacuum insulated panel |
| CN108424095A (en) * | 2017-03-18 | 2018-08-21 | 黄河科技学院 | A kind of vacuum heat-insulating plate core material for building |
| CN112208160A (en) * | 2019-10-23 | 2021-01-12 | 四川迈科隆真空新材料有限公司 | Vacuum heat insulation plate with braided body skeleton structure |
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|---|---|
| CN103319149B (en) | 2014-09-03 |
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Granted publication date: 20140903 Termination date: 20180321 |