CN102720279B - Production method of wall insulation core board - Google Patents
Production method of wall insulation core board Download PDFInfo
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- CN102720279B CN102720279B CN201210187602.3A CN201210187602A CN102720279B CN 102720279 B CN102720279 B CN 102720279B CN 201210187602 A CN201210187602 A CN 201210187602A CN 102720279 B CN102720279 B CN 102720279B
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- central layer
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- silicon dioxide
- incubated
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- 238000009413 insulation Methods 0.000 title claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 title abstract description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 43
- 239000000463 material Substances 0.000 claims abstract description 17
- 239000011162 core material Substances 0.000 claims abstract description 13
- 238000001035 drying Methods 0.000 claims abstract description 13
- 239000003381 stabilizer Substances 0.000 claims abstract description 11
- 239000006229 carbon black Substances 0.000 claims abstract description 9
- 238000002360 preparation method Methods 0.000 claims abstract description 8
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 6
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000000203 mixture Substances 0.000 claims description 27
- 150000001875 compounds Chemical class 0.000 claims description 10
- 229910002012 Aerosil® Inorganic materials 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 229910021487 silica fume Inorganic materials 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 7
- 239000000835 fiber Substances 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 229920000742 Cotton Polymers 0.000 claims description 4
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 2
- 239000005995 Aluminium silicate Substances 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 229910000733 Li alloy Inorganic materials 0.000 claims description 2
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 2
- 239000012190 activator Substances 0.000 claims description 2
- PZZYQPZGQPZBDN-UHFFFAOYSA-N aluminium silicate Chemical compound O=[Al]O[Si](=O)O[Al]=O PZZYQPZGQPZBDN-UHFFFAOYSA-N 0.000 claims description 2
- 235000012211 aluminium silicate Nutrition 0.000 claims description 2
- 229910000323 aluminium silicate Inorganic materials 0.000 claims description 2
- YSZKOFNTXPLTCU-UHFFFAOYSA-N barium lithium Chemical compound [Li].[Ba] YSZKOFNTXPLTCU-UHFFFAOYSA-N 0.000 claims description 2
- 229910052599 brucite Inorganic materials 0.000 claims description 2
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 2
- 239000000292 calcium oxide Substances 0.000 claims description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 2
- 239000003575 carbonaceous material Substances 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 claims description 2
- 239000003063 flame retardant Substances 0.000 claims description 2
- 239000006260 foam Substances 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 239000011491 glass wool Substances 0.000 claims description 2
- 239000001989 lithium alloy Substances 0.000 claims description 2
- 239000000395 magnesium oxide Substances 0.000 claims description 2
- 239000010451 perlite Substances 0.000 claims description 2
- 235000019362 perlite Nutrition 0.000 claims description 2
- 239000000741 silica gel Substances 0.000 claims description 2
- 229910002027 silica gel Inorganic materials 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 2
- 210000002268 wool Anatomy 0.000 claims description 2
- 235000012239 silicon dioxide Nutrition 0.000 abstract 2
- 238000000748 compression moulding Methods 0.000 abstract 1
- 238000005538 encapsulation Methods 0.000 abstract 1
- 239000012784 inorganic fiber Substances 0.000 abstract 1
- 239000002244 precipitate Substances 0.000 abstract 1
- 239000011863 silicon-based powder Substances 0.000 abstract 1
- 238000003892 spreading Methods 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 235000013339 cereals Nutrition 0.000 description 4
- 239000012774 insulation material Substances 0.000 description 4
- 239000004035 construction material Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/24—Structural elements or technologies for improving thermal insulation
- Y02A30/242—Slab shaped vacuum insulation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B80/00—Architectural or constructional elements improving the thermal performance of buildings
- Y02B80/10—Insulation, e.g. vacuum or aerogel insulation
Abstract
The invention relates to an insulation core board and a production method thereof. The insulation core board comprises 0-68wt% of micro silicon powder, 0-35wt% of gas-phase silicon dioxide, 0-30wt% of precipitate silicon dioxide (white carbon black), 28-92wt% of superfine natural silicon dioxide powder, 1-18wt% of inorganic fiber, 0-3.5wt% of vacuum stabilizer and 0-3wt% of getter. The preparation method of the insulation core board comprises (1) a batching step, (2) a drying step, (3) a non-woven fabric bag making step, (4) a core material encapsulation step, (5) a bag material spreading step, (6) a compression moulding step, and the like.
Description
Technical field
The present invention relates to production of construction materials technical field, relate in particular to a kind of wall thermal insulating central layer and production method thereof.
Background technology
Insulation central layer is the one in heat insulating material; be composited by filling core and vacuum protection top layer; the heat transmission that it avoids cross-ventilation to cause effectively; therefore coefficient of thermal conductivity significantly reduces; be less than 0.008w/m.K; and do not contain any ODS material, there is environmental protection and energy-efficient characteristic.Compared with traditional insulation materials, insulation central layer have layer thin, volume is little, lightweight, combustibility is the advantage of A level.
After the eighties in 20th century, world climate warms, and the energy is increasingly exhausted, under the dual-pressure of environmental protection and the energy, bring new requirement to exterior-wall heat insulation, should good heat insulating, anti-flammability is high again, and the external-wall heat-insulation material using is at present mainly the organic material such as polystyrene and polyurethane, these material heat-insulating properties and workability are all fine, cost is also relatively low, but the fatal shortcoming of these materials is easy firing, and combustibility is B2.Production of construction materials industry faces develops key subjects new, effectively insulating wall thermal insulating central layer.
Summary of the invention
For the deficiencies in the prior art, technical problem to be solved by this invention is, a kind of method of utilizing the manufacture of materials such as silica and inorfil insulation central layer is provided, and the insulation central layer thermal conductivity of production is little, i.e. good heat insulating, and anti-flammability is high.
In order to realize foregoing invention object, the technical solution used in the present invention is: a kind of insulation central layer, it is characterized in that: SILICA FUME 0-68wt%, aerosil 0-35wt%, White Carbon black 0-30wt%, contains ultra-fine native silicon dioxide powder 28-92wt%, inorfil 1-18wt%, vacuum stabilizing agent 0.5-3wt%, getter 0-3wt%.
Further, the bulk density of described SILICA FUME is 130-280kg/m
3, specific area is 15-29m
2/ g, average grain diameter is 0.1-2 micron; The bulk density of described aerosil is 60-100kg/m3, and average grain diameter is 0.3-5 micron, and the bulk density of described White Carbon black is 60-120kg/m3, and average grain diameter is 0.3-5 micron; The bulk density of described ultra-fine native silicon dioxide powder is 110-230kg/m
3, average grain diameter is 0.3-5 micron; Described vacuum stabilizing agent and getter are hollow sorbing material, and its mean inside diameter is 0.1-3 micron.
Further, described inorfil is one or more the mixture in glass chopped silk, super glass wool, flame cotton, aluminium silicate wool, ceramic fiber cotton, brucite fiber, foam, and length is 3-12mm, and diameter is 0.2-13 micron.
Further, described vacuum stabilizing agent is carborundum or superfine fibre active carbon material or the mixture of the two, and it mainly absorbs the light such as IR, far-infrared light frequency range, can absorb again the gas that the core material such as water vapour, nitrogen slowly discharges simultaneously.
Further, described getter is one or more the mixture in active carbon, barium lithium alloy activator, calcium oxide, magnesia, silica gel, is mainly to absorb the gas that the core materials such as water vapour, nitrogen, oxygen slowly discharge
Further, described ultra-fine native silicon dioxide powder is one or more the mixture in silica flour, silicon ash, pozzolan, SiO 2 powder, in perlite powder.
The present invention further provides the preparation method of above-mentioned insulation central layer, described method comprises the steps:
(1) batching: the SILICA FUME of described formula, aerosil, White Carbon black, ultra-fine native silicon dioxide powder, inorfil, vacuum stabilizing agent are dropped into mixer and fully mix;
(2) dry: the compound stirring is dried, and bake out temperature is controlled at 100-120 DEG C, in drying course, measured the moisture content of mixed once material every 8 minutes, until the moisture content of compound reaches below 0.5%, stop drying; (3) non-woven fabric bag: nonwoven is made to three banding sacks, or make the three banding sacks with limb;
(4) core material is filling: the mixture of oven dry is dropped in the nonwoven sack of three bandings, then by one side heat-sealing of opening;
(5) Bag Material shakeouts: by the mixture having sealed, entirety is shakeout:
(6) compressing by the packed mixture shakeouing, put under press together with the nonwoven sack of outside, carry out compression forming, obtain being incubated central layer.
Further, the preparation method of described insulation central layer, is characterized in that: the drying course of step (2) also can carry out in the process of step (1) simultaneously;
Further, the preparation method of described insulation central layer, is characterized in that: in step (3), nonwoven used is flame-retardant non-woven, and mass area ratio is 35-100g/m
2.
Further, the preparation method of described insulation central layer, is characterized in that: in step (5), packed mixture is by manually shakeouing, or flattens by roll shaft.
Further, the preparation method of described insulation central layer, is characterized in that: in step (6), the decrease speed of press is controlled at 3-7 cm/s, and pressure is controlled at 20-280T/m
2.
Further, the preparation method of described insulation central layer, is characterized in that: in step (6), compressing technique also can be continuously shaped, and the belt driving by upper and lower several pair of rollers is progressively compressing continuously.
Application the inventive method is produced insulation central layer, technique is simple, there is no three waste discharge, the insulation central layer of producing is easily constructed as wall heat insulation material, fire prevention, can be good at playing insulation, heat-blocking action, combustibility is A level, and insulation thickness is generally at 10-15mm, and lightweight, the weather-proof time is long, and can reach more than 30 years application life.
Raw material involved in the present invention is the usual commercially available technical pure commodity raw material using of the industry.
The present invention does not relate to special equipment, and related detection method is industry customary way.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in detail.
Embodiment 1
(1) batching: by ultra-fine native silicon dioxide powder 28wt%, SILICA FUME 68wt%, White Carbon black 1wt%, inorfil 2.5wt%, vacuum stabilizing agent 0.5wt% drops into mixer fully to be mixed;
(2) dry: the compound stirring is dried, and bake out temperature is controlled at 110 DEG C, in drying course, measured the moisture content of mixed once material every 8 minutes, until the moisture content of compound reaches below 0.5%, stop drying;
(3) non-woven fabric bag: nonwoven is made to three banding sacks, or make the three banding sacks with limb;
(4) core material is filling: the mixture of oven dry is dropped in the nonwoven sack of three bandings, then by one side heat-sealing of opening;
(5) Bag Material shakeouts: by the mixture having sealed, entirety is shakeout:
(6) compressing by the packed mixture shakeouing, put under press together with the nonwoven sack of outside, carry out compression forming, obtain being incubated central layer embodiment 2
(1) batching: by ultra-fine native silicon dioxide powder 90wt%,, aerosil 1wt%, inorfil 18wt%, vacuum stabilizing agent 0.5wt%, getter 0.5% drops into mixer fully to be mixed;
(2) dry: the compound stirring is dried, and bake out temperature is controlled at 120 DEG C, in drying course, measured the moisture content of mixed once material every 8 minutes, until the moisture content of compound reaches below 0.5%, stop drying;
(3) non-woven fabric bag: nonwoven is made to three banding sacks, or make the three banding sacks with limb;
(4) core material is filling: the mixture of oven dry is dropped in the nonwoven sack of three bandings, then by one side heat-sealing of opening;
(5) Bag Material shakeouts: by the mixture having sealed, entirety is shakeout:
(6) compressing by the packed mixture shakeouing, put under press together with the nonwoven sack of outside, carry out compression forming, obtain being incubated central layer embodiment 3
(1) batching: by ultra-fine native silicon dioxide powder 50wt%, SILICA FUME 19wt%, aerosil 15wt%, White Carbon black 5wt%, inorfil 10wt%, getter 1wt% drops into mixer fully to be mixed;
(2) dry: the compound stirring is dried, and bake out temperature is controlled at 100 DEG C, in drying course, measured the moisture content of mixed once material every 8 minutes, until the moisture content of compound reaches below 0.5%, stop drying; (3) non-woven fabric bag: nonwoven is made to three banding sacks, or make the three banding sacks with limb;
(4) core material is filling: the mixture of oven dry is dropped in the nonwoven sack of three bandings, then by one side heat-sealing of opening;
(5) Bag Material shakeouts: by the mixture having sealed, entirety is shakeout:
(6) compressing by the packed mixture shakeouing, nonwoven sack together with outside is put under press, carry out compression forming, obtain being incubated central layer the present invention gained is incubated to core plate applications in wall heat insulation material, high insulating effect, can effectively reduce the energy consumption of its application scenario, accomplish energy-conserving and environment-protective.
Claims (9)
1. an insulation central layer, it is characterized in that: SILICA FUME is greater than zero and be less than or equal to 68wt%, aerosil is greater than zero and be less than or equal to 35wt%, precipitated silica (White Carbon black) is greater than zero and be less than or equal to 30wt%, ultra-fine native silicon dioxide powder 28-92wt%, inorfil 1-18wt%, vacuum stabilizing agent is greater than zero and be less than or equal to 3.5wt%, and getter is greater than zero and be less than or equal to 3wt%;
Described vacuum stabilizing agent and getter are hollow sorbing material, and its mean inside diameter is 0.1-3 micron;
Described vacuum stabilizing agent is carborundum or superfine fibre active carbon material or the mixture of the two;
Described getter is one or more the mixture in active carbon, barium lithium alloy activator, calcium oxide, magnesia, silica gel;
The preparation method of described insulation central layer, comprises the steps:
(1) batching: the SILICA FUME of described formula, aerosil, White Carbon black, ultra-fine native silicon dioxide powder, inorfil, vacuum stabilizing agent are dropped into mixer and fully mix;
(2) dry: the compound stirring is dried, and bake out temperature is controlled at 100-120 DEG C, in drying course, measured the moisture content of mixed once material every 8 minutes, until the moisture content of compound reaches below 0.5%, stop drying;
(3) non-woven fabric bag: nonwoven is made to three banding sacks, or make the three banding sacks with limb;
(4) core material is filling: the mixture of oven dry is dropped in the nonwoven sack of three bandings, then by one side heat-sealing of opening;
(5) Bag Material shakeouts: by the mixture having sealed, entirety is shakeout:
(6) compressing by the packed mixture shakeouing, put under press together with the nonwoven sack of outside, carry out compression forming, obtain being incubated central layer.
2. according to being incubated central layer described in claim 1, it is characterized in that: the bulk density of described SILICA FUME is 130-280kg/m
3, specific area is 15-29m
2/ g, average grain diameter is 0.1-2 micron; The bulk density of described aerosil is 60-100kg/m
3, average grain diameter is 0.3-5 micron, the bulk density of described precipitated silica (White Carbon black) is 60-120kg/m
3, average grain diameter is 0.3-5 micron; The bulk density of described ultra-fine native silicon dioxide powder is 110-230kg/m
3, average grain diameter is 0.3-5 micron.
3. according to being incubated central layer described in claim 1, it is characterized in that: described inorfil is one or more the mixture in glass chopped silk, super glass wool, flame cotton, aluminium silicate wool, ceramic fiber cotton, brucite fiber, foam, length is 3-12mm, and diameter is 0.2-13 micron.
4. according to being incubated central layer described in claim 1, it is characterized in that: described ultra-fine native silicon dioxide powder is one or more the mixture in silicon ash, pozzolan, SiO 2 powder, perlite powder.
5. according to being incubated central layer described in claim 1, it is characterized in that: the drying course of step (2) carries out in the process of step (1) simultaneously.
6. according to being incubated central layer described in claim 1, it is characterized in that: in step (3), nonwoven used is flame-retardant non-woven, mass area ratio is 35-100g/m
2.
7. according to being incubated central layer described in claim 1, it is characterized in that: in step (5), packed mixture is by manually shakeouing, or flattens by roll shaft.
8. according to being incubated central layer described in claim 1, it is characterized in that: in step (6), the decrease speed of press is controlled at 3-7 cm/s, and pressure is controlled at 20-80T/m
2.
9. according to being incubated central layer described in claim 1, it is characterized in that: in step (6), compressing technique is continuously shaped, and the belt driving by upper and lower several pair of rollers is progressively compressing continuously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210187602.3A CN102720279B (en) | 2012-06-08 | 2012-06-08 | Production method of wall insulation core board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210187602.3A CN102720279B (en) | 2012-06-08 | 2012-06-08 | Production method of wall insulation core board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102720279A CN102720279A (en) | 2012-10-10 |
| CN102720279B true CN102720279B (en) | 2014-08-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201210187602.3A Active CN102720279B (en) | 2012-06-08 | 2012-06-08 | Production method of wall insulation core board |
Country Status (1)
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979205B (en) * | 2012-11-12 | 2014-11-05 | 青岛科瑞新型环保材料有限公司 | Foaming cement composite vacuum heat insulation plate and preparation method thereof |
| CN104261861B (en) * | 2014-09-09 | 2016-05-25 | 安徽国电能源设备工程有限公司 | A kind of insulating light wall slab and preparation method thereof |
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| EP2050884A2 (en) * | 2007-10-16 | 2009-04-22 | Porextherm-Dämmstoffe GmbH | Shielded vacuum isolation panel |
| 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 |
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| KR101013754B1 (en) * | 2010-06-18 | 2011-02-14 | 엔알티 주식회사 | Method for manufacturing vacuum insulation panel |
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2012
- 2012-06-08 CN CN201210187602.3A patent/CN102720279B/en active Active
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|---|---|---|---|---|
| EP2050884A2 (en) * | 2007-10-16 | 2009-04-22 | Porextherm-Dämmstoffe GmbH | Shielded vacuum isolation panel |
| CN101734903A (en) * | 2008-11-14 | 2010-06-16 | 中国电力科学研究院 | Nano silica dioxide heat-insulating material and preparation method thereof |
| 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 |
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Denomination of invention: Production method of wall insulation core board Effective date of registration: 20160302 Granted publication date: 20140820 Pledgee: Qingdao Guarantee Center Co., Ltd. Pledgor: Qingdao Creek New Environmental Materials Co., Ltd. Registration number: 2016990000159 |
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