CN102173117A - Vacuum heat insulation plate of high-performance composite core material and production method thereof - Google Patents

Vacuum heat insulation plate of high-performance composite core material and production method thereof Download PDF

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Publication number
CN102173117A
CN102173117A CN2011100563718A CN201110056371A CN102173117A CN 102173117 A CN102173117 A CN 102173117A CN 2011100563718 A CN2011100563718 A CN 2011100563718A CN 201110056371 A CN201110056371 A CN 201110056371A CN 102173117 A CN102173117 A CN 102173117A
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CN
China
Prior art keywords
core
dry
wet
glass fibers
vacuum heat
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CN2011100563718A
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Chinese (zh)
Inventor
周介明
Original Assignee
苏州维艾普新材料有限公司
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Application filed by 苏州维艾普新材料有限公司 filed Critical 苏州维艾普新材料有限公司
Priority to CN2011100563718A priority Critical patent/CN102173117A/en
Publication of CN102173117A publication Critical patent/CN102173117A/en

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Abstract

The invention discloses a vacuum heat insulation plate of a high-performance composite core material, comprising a core material, a wet method glass fiber core material, a dry method glass fiber core material and silicon dioxide powder, wherein the core material is a composite core material; the wet method glass fiber core material is located at the outermost layer; and the silicon dioxide powder is located between the dry method glass fiber core material and the wet method glass fiber core material. The invention also discloses a production method of the vacuum heat insulation plate. In the invention, the hydrophilic silicon dioxide powder with excellent water retaining property is compounded with the dry method glass fiber core material and the wet method glass fiber core material to absorb a part of adsorbed water which has stronger adsorption capacity in the glass fiber core material and is hard to release under normal pressure, therefore, the degradation of the vacuum heat insulation plate performance is delayed, the service life is prolonged, the energy consumption in an application occasion can be effectively reduced, and the purposes of energy saving and environment friendliness are achieved.

Description

A kind of high-performance composite core material vacuum heat insulation plate and production method thereof
Technical field
The present invention relates to a kind of heat-insulating material and heat-insulating material engineering, is a kind of vacuum heat-insulating plate and production method thereof that adopts composite core material specifically.
Background technology
The energy and environment problem has become worldwide problem, energy savings, the development low-carbon economy extremely urgent.Evacuated insulation panel is a kind of superadiabatic insulation material, in its production and application process, does not use the ODS material, and is nuisanceless to environment.Thermal conductivity factor can hang down and reach below the 4mW/ (mK), and its thickness can be reduced to 1/3rd of traditional insulation material.Be the best insulation material of present heat-insulating property, have vast potential for future development.
At present, glass fibre core vacuum heat-insulating plate all is that the glass fibre with single dry method or wet production is that core is manufactured.The core unit weight of dry production is little, bulky, is difficult in process of production handle.Though through preheating and drying, desorption slowly still under the high vacuum condition of a part of absorption type after encapsulation causes the rising of plate internal pressure, the heat-insulating property of reduction VIP to the core of wet production before encapsulation.
Summary of the invention
Goal of the invention: the objective of the invention is in order to overcome the deficiencies in the prior art, provide that a kind of thermal conductivity factor is low, high insulating effect, the more excellent high-performance composite core material vacuum heat insulation plate of heat-proof quality, the production method of this composite core material vacuum heat insulation plate also is provided simultaneously.
Technical scheme: in order solving the problems of the technologies described above, to the invention provides a kind of high-performance composite core material vacuum heat insulation plate, to comprise core, described core is a composite core material, comprising: wet glass fibers core, dry method glass fibre core and SiO 2 powder; Described wet glass fibers core is positioned at outermost layer, and SiO 2 powder is between dry method glass fibre core and wet glass fibers core.Adopting SiO 2 powder among the present invention is because the thermal conductivity factor of silica own is low, and has very strong solid water, with itself and glass fibre core compound after, can heat absorbing glass fiber core after the vacuum heat-insulating plate encapsulation in the part adsorption capacity adsorbed water that under normal pressure, is difficult to discharge by force.
Core described in the present invention each layer from top to down is successively in proper order: wet glass fibers core, SiO 2 powder, dry method glass fibre core, wet glass fibers core.
The invention also discloses a kind of production method of high-performance composite core material vacuum heat insulation plate, the step of this method is as follows:
(1) the glass fibre core of dry method, wet production is put into preheating and drying case preheating 5-10 minute, then its taking-up is positioned in the dry environment, form stand-by wet glass fibers core and dry method glass fibre core;
(2) get a wet glass fibers core tiling, get the top that wet glass fibers core and/or dry method glass fibre core are positioned over the wet glass fibers core of the bottom then; Wherein dry method glass fibre core adopts one at least;
(3) between dry method glass fibre core and wet glass fibers core, shed SiO 2 powder;
(4) outermost layer adopts the wet glass fibers core to cover; Finish the making of composite core material;
(5) then with putting into high-isolation film behind the composite core material, high-isolation film is put into vacuum extractor vacuumize, edge sealing.
Described in the present invention in the core mass ratio between dry method glass fibre core, wet glass fibers core, the SiO 2 powder three be 7:1:2.
Beneficial effect: the present invention compared with prior art has the following advantages:
SiO 2 powder that the present invention is well hydrophilic with solid water and bar method glass fibre core and wet glass fibers core are compound, can effectively alleviate the problem that core residual adsorbed water in vacuum heat-insulating plate encapsulation back causes the plate internal pressure to raise after volatilization, delayed the degeneration of vacuum heat-insulating plate performance, prolonged service life, can effectively reduce the energy consumption of its application scenario, accomplish energy-conserving and environment-protective.
Description of drawings
Fig. 1 is the structural representation of core among the present invention.
The specific embodiment
Below in conjunction with specific embodiment, further illustrate the present invention, should understand these embodiment only is used to the present invention is described and is not used in and limit the scope of the invention, after having read the present invention, those skilled in the art all fall within the application's claims to the modification of the various equivalent form of values of the present invention and limit.
Embodiment
A kind of high-performance composite core material vacuum heat insulation plate comprises core, and this core is composite core material (as shown in Figure 1), comprising: wet glass fibers core 1, dry method glass fibre core 2 and SiO 2 powder 3; In the present embodiment, wet glass fibers core 1 is two-layer, and dry method glass fibre core 2 is one deck, and SiO 2 powder 3 is one deck; This composite core material each layer from top to down is successively in proper order: wet glass fibers core, SiO 2 powder, dry method glass fibre core, wet glass fibers core.
Present embodiment also provides the production method of above-mentioned high-performance composite core material vacuum heat insulation plate, and the step of this method is as follows:
(1) the glass fibre core of dry method, wet production is put into preheating and drying case preheating 8 minutes, then its taking-up is positioned in the dry environment, form stand-by wet glass fibers core and dry method glass fibre core;
(2) get a wet glass fibers core tiling, get the top that wet glass fibers core and/or dry method glass fibre core are positioned over the wet glass fibers core of the bottom then; Wherein dry method glass fibre core adopts one at least;
(3) between dry method glass fibre core and wet glass fibers core, shed SiO 2 powder;
(4) outermost layer adopts the wet glass fibers core to cover; Finish the making of composite core material; Shown in dry method glass fibre core in the composite core material: the wet glass fibers core: the mass ratio between the SiO 2 powder three is 7:1:2;
(5) then with putting into high-isolation film behind the composite core material, high-isolation film is put into vacuum extractor vacuumize, edge sealing.

Claims (4)

1. a high-performance composite core material vacuum heat insulation plate comprises core, it is characterized in that: described core is a composite core material, comprising: wet glass fibers core (1), dry method glass fibre core (2) and SiO 2 powder (3); Described wet glass fibers core (1) is positioned at outermost layer, and SiO 2 powder (3) is positioned between dry method glass fibre core (2) and the wet glass fibers core (1).
2. high-performance composite core material vacuum heat insulation plate according to claim 1 is characterized in that: described core each layer from top to down is successively in proper order: wet glass fibers core (1), SiO 2 powder (3), dry method glass fibre core (2), wet glass fibers core (1).
3. the production method of a high-performance composite core material vacuum heat insulation plate is characterized in that, the step of this method is as follows:
(1) the glass fibre core of dry method, wet production is put into preheating and drying case preheating 5-10 minute, then its taking-up is positioned in the dry environment, form stand-by wet glass fibers core and dry method glass fibre core;
(2) get a wet glass fibers core tiling, get the top that wet glass fibers core and/or dry method glass fibre core are positioned over the wet glass fibers core of the bottom then; Wherein dry method glass fibre core adopts one at least;
(3) between dry method glass fibre core and wet glass fibers core, shed SiO 2 powder;
(4) outermost layer adopts the wet glass fibers core to cover; Finish the making of composite core material;
(5) then with putting into high-isolation film behind the composite core material, high-isolation film is put into vacuum extractor vacuumize, edge sealing.
4. the production method of high-performance composite core material vacuum heat insulation plate according to claim 1 is characterized in that: dry method glass fibre core in the described core: wet glass fibers core: the mass ratio between the SiO 2 powder three is 7:1:2.
CN2011100563718A 2011-03-10 2011-03-10 Vacuum heat insulation plate of high-performance composite core material and production method thereof CN102173117A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011100563718A CN102173117A (en) 2011-03-10 2011-03-10 Vacuum heat insulation plate of high-performance composite core material and production method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011100563718A CN102173117A (en) 2011-03-10 2011-03-10 Vacuum heat insulation plate of high-performance composite core material and production method thereof

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Publication Number Publication Date
CN102173117A true CN102173117A (en) 2011-09-07

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102729316A (en) * 2012-07-10 2012-10-17 袁江涛 Preparation method of vacuum heat insulating plate

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85108522A (en) * 1985-11-14 1987-05-20 中国人民解放军国防科学技术大学 Heat-insulating oil pipe
CN1850502A (en) * 2005-04-22 2006-10-25 海尔集团公司 Aerospace thermal-insulated plate and its preparing process
CN201487481U (en) * 2009-03-30 2010-05-26 成都思摩纳米技术有限公司 Vacuum heat-insulating plate
CN101722604A (en) * 2009-11-30 2010-06-09 浙江省普瑞科技有限公司 Method for preparing fiber base material and silicon dioxide aerogel composite heat insulating sleeve
CN201944491U (en) * 2011-03-10 2011-08-24 苏州维艾普新材料有限公司 High performance vacuum insulated panel with compound core material

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85108522A (en) * 1985-11-14 1987-05-20 中国人民解放军国防科学技术大学 Heat-insulating oil pipe
CN1850502A (en) * 2005-04-22 2006-10-25 海尔集团公司 Aerospace thermal-insulated plate and its preparing process
CN201487481U (en) * 2009-03-30 2010-05-26 成都思摩纳米技术有限公司 Vacuum heat-insulating plate
CN101722604A (en) * 2009-11-30 2010-06-09 浙江省普瑞科技有限公司 Method for preparing fiber base material and silicon dioxide aerogel composite heat insulating sleeve
CN201944491U (en) * 2011-03-10 2011-08-24 苏州维艾普新材料有限公司 High performance vacuum insulated panel with compound core material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102729316A (en) * 2012-07-10 2012-10-17 袁江涛 Preparation method of vacuum heat insulating plate

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Application publication date: 20110907