CN108644536A - A kind of vacuum insulation panel glass fiber core material - Google Patents
A kind of vacuum insulation panel glass fiber core material Download PDFInfo
- Publication number
- CN108644536A CN108644536A CN201810450253.7A CN201810450253A CN108644536A CN 108644536 A CN108644536 A CN 108644536A CN 201810450253 A CN201810450253 A CN 201810450253A CN 108644536 A CN108644536 A CN 108644536A
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- China
- Prior art keywords
- core material
- glass fiber
- insulation panel
- vacuum insulation
- panel glass
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/06—Arrangements using an air layer or vacuum
- F16L59/065—Arrangements using an air layer or vacuum using vacuum
Abstract
The invention discloses a kind of vacuum insulation panel glass fiber core material, the core material is using short glass fiber as the molding net felt of raw material, wherein K in the short glass fiber2O and Na2The sum of weight percentage of O is less than or equal to 0.9%.A kind of vacuum insulation panel glass fiber core material of the present invention, it is utmostly low to reduce production cost while promoting core material properties of product by the selection of raw material, there is the huge market competitiveness, there is innovative meaning in vacuum insulation panel core material field.
Description
Technical field
The present invention relates to heat-barrier material fields, more particularly to a kind of vacuum insulation panel glass fiber core material.
Background technology
Vacuum insulation panel（VIP plates）It is the abbreviation of English Vacuum Insulation Panel, is in vacuum thermal insulating material
One kind, be combined by filling core material and vacuum protection surface layer, thermal coefficient is relatively low, be less than 0.0025w/ (㎡ k), be
Current efficient thermal insulation material state-of-the-art in the world.Vacuum heat-insulation board industry originates in Germany, and at 2005 or so in China
It takes root.Whole market is controlled by Germany and Japanese enterprises from originally, world market, enterprise of China are controlled to current Chinese Enterprise
Industry is made that very more technological innovation and creation.
Heat transmit mode be：Heat transfer, thermal convection current and heat radiation.For vacuum insulation panel, due to vacuum heat-insulation
There is no air in plate, be in vacuum state, so the phenomenon that its thermal convection current can be ignored, and because the outer layer of vacuum insulation panel is
Aluminium film structure, thus the problem of its heat radiation can also ignore.It can be seen that core material is direct decision vacuum insulation panel heat preservation
The key factor of performance is that the heat-proof quality of its core material, the core technology of vacuum insulation panel are the manufacture of core material.
Currently, the core material of vacuum insulation panel uses superfine glass fiber.The VIP industries of China began to use a diameter of from 2010
1 ~ 3 μm of 100% flame cotton and a diameter of 3 ~ 4 μm of 100% centrifugal cotton are that raw material produces core material.This superfine glass fiber is in vacuum
There are the following problems in the application in heat-insulated board core material market：1, there is certain harm to human body, can not be sold in European market；2、
Cost of material is higher, can not be the profit that VIP enterprises of China bring tremendous development to need；3, in forming process, fiber
It is easily broken off or dusting, forms small longitudinal fiber, these small longitudinal fibers increase glass fibers longitudinal in core material
Dimension connecting path limits the further promotion of vacuum insulation panel heat-insulating property to increase heat-conductive characteristic.Therefore, market
It is badly in need of a not depending on ultra-fine fibre glass, performance is same outstanding or better, and price is lower, while meeting European Union's glass
The core material product of the innoxious treaty of glass fiber.
Invention content
The invention mainly solves the technical problem of providing a kind of vacuum insulation panel glass fiber core material, can solve existing
There is core material above shortcomings place prepared by method.
In order to solve the above technical problems, one aspect of the present invention is：A kind of vacuum insulation panel glass is provided
Glass fiber core material, it is the molding net felt of raw material that the core material, which is using short glass fiber, wherein in the short glass fiber
K2O and Na2The sum of weight percentage of O is less than or equal to 0.9%.
In a preferred embodiment of the present invention, a diameter of 5~13 μm of the short glass fiber.
In a preferred embodiment of the present invention, the short glass fiber in the core material with distribution of forward tiling,
Form layer structure；In every layer of layered structure, the short glass fiber horizontal continuity distribution, and formed crisscross
Distributed architecture.
In a preferred embodiment of the present invention, the thermal coefficient of the core plate is less than or equal to 1.8mW/（m·k）.
In a preferred embodiment of the present invention, the thermal coefficient of the core plate is less than or equal to 1.3mW/（m·k）.
The beneficial effects of the invention are as follows：A kind of vacuum insulation panel glass fiber core material of the present invention, passes through material composition
It limits, it is utmostly low to reduce production cost while promoting core material properties of product, there is the huge market competitiveness,
There is innovative meaning in vacuum insulation panel core material field.
Specific implementation mode
The preferred embodiments of the present invention will be described in detail below so that advantages and features of the invention can be easier to by
It will be appreciated by those skilled in the art that so as to make a clearer definition of the protection scope of the present invention.
The embodiment of the present invention includes：
Embodiment 1
It is known heat transmit 3 elements be：1. heat transfer, 2. heat radiation and 3. thermal convection current.
For vacuum insulation panel, due to there is no air, it is in vacuum state, so the phenomenon that thermal convection current can neglect
Slightly.Again because the outer layer of vacuum insulation panel is aluminium film structure, therefore the problem of heat radiation, can also ignore.And glass in core material
Heat transfer caused by the contact of physics can conduct heat between fiber.In other words, it is desirable to realize better heat insulation it is necessary to reduce
The mutual contact of glass fibre in core material, reduces the area of heat transfer, promotes the heat insulation effect of vacuum insulation panel.
Present invention is disclosed a kind of vacuum insulation panel glass fiber core material, for using short glass fiber be raw material at
The net felt of type, the short glass fiber, with distribution of forward tiling, form layer structure in the core material；Every layer layered
In structure, the short glass fiber horizontal continuity distribution, and form crisscross distributed architecture.
The specification of used short glass fiber is：K2O and Na2The sum of weight percentage of O is less than or equal to 0.9%,
Fibre diameter is in the range of 5~13 μm.First, the glass fibre of this special component has preferable hardness and toughness, no
Easy dusting and fragmentation under the action of strong pressure, can lie low in forming process from endways state, realize horizontal
It is continuously distributed, and seldom generate fragmentation, fracture and the case where dusting, it is longitudinal fine between each layer structure to reduce core material
Dimension hplc so that the longitudinal fiber access of interlayer is few, advantageously reduces longitudinal heat conduction via, promotes the thermal insulation of core material
Energy.Secondly, this kind of short glass fiber is not the scope of ultra-fine fibre glass, not only can effectively evade glass fibre to human body
Harm, meet import requirement of the European Union about glass fibre and its Related product, and raw material is relative to superfine glass fiber cost
It substantially reduces, in addition, the raw material sources of this kind of short glass fiber are extensive, the cutting material of production upstream enterprise can be used, such as with
The secondary material or waste material of fiberglass industry are as raw material, while ensureing core material product heat-proof quality, make cost of material into
One step reduces, and is conducive to the market profit for improving VIP industries, improves the market competitiveness.
Exhaustive test is carried out to the diameter of the glass fibre of production, it is as shown in table 1 to obtain data：
1 short glass fiber diameter of table/μm
Thermal coefficient to producing obtained core material is tested, and the results are shown in Table 2：
Thermal coefficient // [mW/ of 2 core material of table（m·k）]
By Tables 1 and 2 it is found that using K2O and Na2The sum of weight percentage of O is less than or equal to 0.9%, and diameter is at 5~13 μm
Short glass fiber in range is raw material, and the thermal coefficient of the core material of gained, which compares existing core material on the market, apparent drop
Low, thermal coefficient has reached 1.20 mW/（m·k）Left and right, and cost of material substantially reduces, and has the preferable market competitiveness.
Gained core material of the invention, on the one hand, when having comparable heat conductivility with the prior art, cost of material drops significantly
Low, on the other hand the thermal coefficient of the core material of gained is compared existing core material on the market and is substantially reduced, while cost of material is big
It is big to reduce, there is the preferable market competitiveness.
The core material of the present invention is tested through tensile test and surface smoothness, is superior to the existing core material product in market.And through poor
Act formula is tested, fiber fracture rate and pulverization rate is substantially reduced compared to industry existing product, finished product core material product is physical
It can be significantly increased with heat-proof quality.
In addition, above-mentioned vacuum insulation panel is the plate glass web formed using dry method hot pressing with glass fiber core material
Felt, without containing media such as any water or glue, no volatile organic content pollution does not also generate industrial wastewater, safe and environment-friendly.
The vacuum insulation panel glass fiber core material of the present invention is promoting core material properties of product by the selection of raw material
Meanwhile it is utmostly low reduce production cost, thermal insulation board more existing than market with core material cost of material reduce by 50% or more, have
The huge market competitiveness has innovative meaning in vacuum insulation panel core material field；
Advantage specific as follows：
1, cost of material, production cost, equipment cost reduce, the market competitiveness for aspect of improving price；
2, by the control of fibre composition and diameter, the physical distribution of bonded glass fiber is modified, and improves the micro- of core material product
Structure, to make the heat-proof quality of its own further increase；
3, raw materials used is not ultra-fine fibre glass, meets requirement of the European Union to the nuisanceless standard of human body, greatly reduces raw material
Cost is conducive to further expand market；
4, safe and environment-friendly, generation environment does not pollute.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of vacuum insulation panel glass fiber core material, which is characterized in that it is former that the core material, which is using short glass fiber,
Expect molding net felt, wherein K in the short glass fiber2O and Na2The sum of weight percentage of O is less than or equal to 0.9%.
2. vacuum insulation panel glass fiber core material according to claim 1, which is characterized in that the short glass fiber
A diameter of 5~13 μm.
3. vacuum insulation panel glass fiber core material according to claim 1 or 2, which is characterized in that the staple glass
Fiber, with distribution of forward tiling, forms layer structure in the core material；In every layer of layered structure, the staple glass is fine
Horizontal continuity distribution is tieed up, and forms crisscross distributed architecture.
4. vacuum insulation panel glass fiber core material according to claim 1, which is characterized in that the heat conduction system of the core plate
Number is less than or equal to 1.8mW/（m·k）.
5. vacuum insulation panel glass fiber core material according to claim 4, which is characterized in that the heat conduction system of the core plate
Number is less than or equal to 1.3mW/（m·k）.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810450253.7A CN108644536A (en) | 2018-05-11 | 2018-05-11 | A kind of vacuum insulation panel glass fiber core material |
| CN201910379024.5A CN109945016B (en) | 2018-05-11 | 2019-05-08 | Glass fiber core material for vacuum insulation panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810450253.7A CN108644536A (en) | 2018-05-11 | 2018-05-11 | A kind of vacuum insulation panel glass fiber core material |
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| Publication Number | Publication Date |
|---|---|
| CN108644536A true CN108644536A (en) | 2018-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810450253.7A Pending CN108644536A (en) | 2018-05-11 | 2018-05-11 | A kind of vacuum insulation panel glass fiber core material |
| CN201910379024.5A Active CN109945016B (en) | 2018-05-11 | 2019-05-08 | Glass fiber core material for vacuum insulation panel |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910379024.5A Active CN109945016B (en) | 2018-05-11 | 2019-05-08 | Glass fiber core material for vacuum insulation panel |
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Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104176940A (en) * | 2013-05-23 | 2014-12-03 | 苏州维艾普新材料股份有限公司 | Vacuum insulation panel glass fiber core material |
| CN104373751A (en) * | 2013-08-12 | 2015-02-25 | 苏州维艾普新材料股份有限公司 | Different-length-diameter-ratio VIP (vacuum insulated panel) glass fiber core material |
| CN104373767A (en) * | 2013-08-12 | 2015-02-25 | 苏州维艾普新材料股份有限公司 | Superfine centrifugal glass fiber dry-method core material of super-layer structure |
| CN103727360A (en) * | 2013-09-11 | 2014-04-16 | 太仓派欧技术咨询服务有限公司 | Vacuum insulated panel with ultra-low heat conductivity coefficient |
| CN104878662B (en) * | 2014-02-28 | 2017-10-24 | 福建赛特新材股份有限公司 | Felt of vacuum heat-insulating plate and preparation method thereof and the vacuum heat-insulating plate using the felt |
| JP6742076B2 (en) * | 2015-05-07 | 2020-08-19 | 日立グローバルライフソリューションズ株式会社 | Vacuum heat insulating material and method for manufacturing vacuum heat insulating material |
| CN107339549B (en) * | 2017-06-30 | 2019-08-23 | 福建赛特新材股份有限公司 | The core material and its production method and vacuum heat-insulating plate that vacuum heat-insulating plate uses |
| CN107366800A (en) * | 2017-08-25 | 2017-11-21 | 四川迈科隆真空新材料有限公司 | Preparation method of dry vacuum insulated panel core material and vacuum heat-insulating plate and products thereof |
| CN107339551A (en) * | 2017-09-01 | 2017-11-10 | 苏州亿禾永利新能源有限公司 | A kind of long fibre weaves core material vacuum heat-insulating material |
-
2018
- 2018-05-11 CN CN201810450253.7A patent/CN108644536A/en active Pending
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- 2019-05-08 CN CN201910379024.5A patent/CN109945016B/en active Active
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| Publication number | Publication date |
|---|---|
| CN109945016B (en) | 2021-04-30 |
| CN109945016A (en) | 2019-06-28 |
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Application publication date: 20181012 |