CN106015838A - Inner core material used for vacuum heat-insulating plate and vacuum heat-insulating plate - Google Patents

Inner core material used for vacuum heat-insulating plate and vacuum heat-insulating plate Download PDF

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Publication number
CN106015838A
CN106015838A CN201510815413.XA CN201510815413A CN106015838A CN 106015838 A CN106015838 A CN 106015838A CN 201510815413 A CN201510815413 A CN 201510815413A CN 106015838 A CN106015838 A CN 106015838A
Authority
CN
China
Prior art keywords
core
insulating plate
vacuum heat
glass fibre
woven fabrics
Prior art date
Application number
CN201510815413.XA
Other languages
Chinese (zh)
Inventor
王振安
吴志煌
罗宇彦
Original Assignee
福建赛特新材股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 福建赛特新材股份有限公司 filed Critical 福建赛特新材股份有限公司
Priority to CN201510815413.XA priority Critical patent/CN106015838A/en
Publication of CN106015838A publication Critical patent/CN106015838A/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00Thermal insulation in general
    • F16L59/02Shape or form of insulating materials, with or without coverings integral with the insulating materials
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00Thermal insulation in general
    • F16L59/06Arrangements using an air layer or vacuum
    • F16L59/065Arrangements using an air layer or vacuum using vacuum
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00Thermal insulation in general
    • F16L59/06Arrangements using an air layer or vacuum
    • F16L59/07Arrangements using an air layer or vacuum the air layer being enclosed by one or more layers of insulation

Abstract

The invention provides an inner core material used for a vacuum heat-insulating plate. The inner core material is formed by laminating a plurality of non-woven fabrics. The non-woven fabrics are produced and manufactured by using a plurality of glass fibers and a plurality of low-melting-point organic fibers through the dry non-woven process. In the non-woven fabrics, most of the multiple glass fibers extend in the direction basically parallel to the surfaces of the non-woven fabrics. The provided inner core material used for the vacuum heat-insulating plate is excellent in heat insulation performance, simple in production process and low in cost.

Description

The inside core of a kind of vacuum heat-insulating plate use and vacuum heat-insulating plate
Technical field
The present invention relates to inside core and vacuum heat-insulating plate that a kind of vacuum heat-insulating plate uses.
Background technology
Vacuum heat-insulating plate is a kind of new high-efficiency combined in vacuum insulation principle and Conventional insulation Heat-insulating material.It is widely used in refrigerator, couveuse, construction wall, the field such as frozen products insulated container, It is by compositions such as membrane material, core, getter materials.
At present, the many voidages of the many employings of core, pore connects, the material that heat conductivity is low.The production of core Major part is to use wet process technique, and i.e. glass fibre or glass cotton, flame is cotton etc. through making beating, copy paper, Drying, cut making core, but energy consumption is high, complex technical process, cost is high.
The present invention is that short glass fiber uses the nonwoven Technology dry production core material of vacuum heat insulation plate improved, and solves The problem that wet production glass core exists.
Summary of the invention
Technical problem underlying to be solved by this invention is to provide the inside core that a kind of vacuum heat-insulating plate uses, There is excellent heat-proof quality, and production technology is simple, cost is relatively low.
In order to solve above-mentioned technical problem, the invention provides the inner core that a kind of vacuum heat-insulating plate uses Material, is laminated by multiple non-woven fabrics;Described non-woven fabrics is a plurality of glass fibre and low melting point organic fiber is adopted Manufacture without spinning process by dry method;
In described non-woven fabrics, the most of glass fibre in described a plurality of glass fibre with described non-woven fabrics Surface direction that is substantially parallel on extend.
In a preferred embodiment: the fiber diameter of described glass fibre is at 7-15 μm, average fiber Length is at 10-50mm.
In a preferred embodiment: the content of described glass fibre is 90-99%, containing of low melting point organic fiber Amount is 1%-10%.
In a preferred embodiment: between multiple non-woven fabrics described, be not provided with binding agent.
Present invention also offers a kind of vacuum insulation panel, including:
Outsourcing material;And
Core material, is housed in the inside of described outsourcing material;
The inside of described outsourcing material can keep being in decompression state, and described core material includes claim 1 The inside core that described vacuum heat-insulating plate uses.
In a preferred embodiment: in the inside core that described vacuum heat-insulating plate uses, glass fibre is average fine Dimension diameter is in 7-15 μm, and average fiber length is at 10-50mm.
In a preferred embodiment: in the inside core that described vacuum heat-insulating plate uses, the content of glass fibre is 90-99%, the content of low melting point organic fiber is 1%-10%.
In a preferred embodiment: the inside core that described vacuum heat-insulating plate uses does not has between multiple non-woven fabrics Binding agent is set.
Compared to prior art, technical scheme possesses following beneficial effect:
The inside core that a kind of vacuum heat-insulating plate that the present invention provides uses, is laminated by multiple non-woven fabrics; Described non-woven fabrics is that a plurality of glass fibre and low melting point organic fiber use dry method to manufacture without spinning process;By In employing dry method without spinning process so that glass fibre single fiber substantially completely, then use air lay system The non-woven fabrics become is the thinnest, and grammes per square metre can be at 50-100 gram/m2Left and right.Owing to glass fibre is in carding machine tension Stretching effect, glass fibre is very straight, and glass fibre does not bend, and glass fibre becomes horizontal plane to be uniformly distributed, and does not has Have vertical non-woven fabrics plane runs through glass fibre, and therefore, the number of plies of multiple non-woven fabrics of stacking is a lot, glass Glass fiber and glass fibre only have little point cantact.In addition rely on melt to have between non-woven fabrics and non-woven fabrics Organic fiber bonds, and therefore the space of fiberglass particle contact and non-woven fabrics stratification does not has binding agent to fill, and subtracts Having lacked heat conduction surface, heat-insulating property is greatly promoted.
Accompanying drawing explanation
Fig. 1 is the flow sheet of the preferred embodiment of the present invention.
Detailed description of the invention
Hereafter by the drawings and specific embodiments, the present invention will be further described.
Embodiment 1
With reference to Fig. 1, the present embodiment uses dry method nonwoven Technology to produce the inside that vacuum heat-insulating plate uses Core, uses glass fibre and a small amount of low melting point organic fiber, and by shredding, mixing, combing, air-flow becomes Net, sandwich crosslapping machine, heat setting machine, hot roll, the equipment such as vertical transverse cutting unit produces vacuum heat-insulating plate to be made Inside core.
Concrete production stage is as follows:
1 proportioning raw materials: alkali-free glass fibre 90-99%, the fiber diameter of glass fibre in 7-15 μm, Average fiber length is at 10-50mm;Low melting point polyester fiber 1-10%.
2 technological processes:
1) glass fibre and low melting point polyester fiber are by twice opener, and glass fibre and low melting point are gathered Ester fiber disperses, and unclamps, segment glass chopped fiber monofilament.
2) through the glass fibre of twice opener and low melting point polyester fiber through carding machine combing, enter One step is glass fibre and low melting point polyester fiber monofilament, and glass fibre is straightened, and clears up miscellaneous The fiber that matter is superfine with removing, owing to superfine glass fibre is the most easily filled in into the seam between web-roll core material fiber Gap affects heat-insulating property in space.
Glass fibre and other organic fiber performance have a following different qualities:
(1) glass fibre is relatively denser, is approximately 2 times of synthesising fibre
(2) glass fibre is pole shape, smooth surface, and without crimpiness, fiber is little with the cohesive force of fiber
(3) glass fibre fragile material, not folding, the most wear-resisting
Therefore, will be from carding machine in the type selecting of carding machine, combing machine for fur Integrated Selection also improves:
(1) improving drawing-in device, the drawing-in device of design ensures that glass fibre can enter equably swimmingly Enter carding machine
(2) for the characteristic of glass fibre, select suitable pin cloth, metaphor band pin cloth, increase pin The cloth crawl to glass fibre, improves frictional force.
(3) adjust pin cloth tooth to space, improve carding effect.
(4) licker-in is controlled, cylinder and the speed of transfer roller, reduce the injury to fiber, improve combing Ability.
(5) fiber of entrance carding machine is with some impurity, and glass fibre ratio is great, the most smooth without obvolvent Power, therefore has the short silk of substantial amounts of glass fibre to fall in machine tripe, causes waste, and this needs to adjust mote knife Position, setting angle and with the spacing of licker-in, make to fall into the glass fibre in machine tripe and be reduced to minimum degree.
(6) due to the fragility of glass fibre, size of spacing to be regulated and avoid excessive combing to glass fibre Damage, fracture, cause a large amount of glass fibre to pulverize.
3) glass fibre after twice opener and carding machine and low melting point polyester fiber are at air lay Under the worker rollers of machine and negative pressure wind effect, fall on lace curtaining with holes, form non-woven fabrics.
Owing to glass fibre and low melting point polyester fiber are in shredding, combing, the Weaving device such as air lay is wanted Rub with the machinery of constantly motion, easily gather electric charge at fiber surface, make fiber and fiber repulsion, Attract each other between fiber and parts, so that glass fibre and low melting point polyester fiber are at the stannum of carding machine Woods, the one-tenth net cage of random web-laying equipment or turning etc. agglomerating gathering.Therefore glass fibre and low melting point can be caused Polyester fiber divides the comb non-woven fabrics lack of homogeneity that bad, air lay is made.For the shadow overcoming electrostatic to produce Ring, need to use following means:
(1) installing elimination electrostatic equipment on opener, carding machine and random web-laying equipment, we use ion Wind rod and ionic wind nozzle:
Ion wind rod and ionic wind nozzle can produce a large amount of air mass with positive and negative charge, blown at a high speed by compressed gas Go out, the charging neutrality that object is carried can be fallen, when body surface institute static electrification is negative charge, its meeting Attracting the positive charge in air-flow, when body surface does electrostatic belt positive charge, it can attract bearing in air-flow Electric charge, so that the electrostatic on body surface is neutralized, reaches to eliminate the purpose of fiber surface electrostatic;
(2) antistatic agent is sprayed on glass fibre before shredding and low melting point polyester fiber;
(3) antistatic agent is added in glass fibre wetting agent aborning;
(4) in workshop, use humidifier humidifies, make the humidity of workshop maintain 60-75%.
4) air lay glass fibre out and a small amount of low melting point organic synthetic fibers hybrid nonwoven cloth grammes per square metre 50-100 gram/m2, through clamping cross lapping machine by non-woven fabrics stacking, thus make grammes per square metre 500-5000 gram /m2Glass fiber laminate
If needing to make the thick vacuum heat-insulating plate of 10MM, glass fiber laminate core grammes per square metre 2500 grams/ About square metre, clamping cross lapping machine is by non-woven fabrics stacking 32-50 layer.If needing to make other thickness Vacuum heat-insulating plate, as required adjust non-woven fabrics stacking the number of plies.
5) clamping cross lapping machine is made glass fiber laminate and is entered thermo-pressing moulder, two-layer equation thermocompression forming Machine is formed by three sections: two sections with heated by natural gas device, long 6 meters, control temperature 200-250 DEG C it Between and one section of cooling zone with air-cooler, long 3 meters.Heating and temperature control is for low melting point organic fiber Fusing bonding glass fibre, forms the core product of preferable intensity.
6) thermo-pressing moulder glass fiber laminate out enters a pair hot rolling machine, and hot roll is by adding deep fat Being heated to 200-250 DEG C, make glass fiber laminate superficial compaction, smooth surface is smooth.
7) through the glass fiber laminate of hot roll, density is at 40-120KG/m3, enter rip cutting, crosscutting, Make required core size.
Through above-mentioned steps, i.e. can be made into the inside core that described vacuum heat-insulating plate uses, by multiple non-woven fabrics It is laminated;Described non-woven fabrics is that a plurality of glass fibre and low melting point organic fiber use dry method raw without spinning process Produce and manufacture;
In described non-woven fabrics, the most of glass fibre in described a plurality of glass fibre with described non-woven fabrics Surface direction that is substantially parallel on extend.
And the fiber diameter of described glass fibre is in 7-15 μm, and average fiber length is at 10-50mm.
The content of described glass fibre is 90-99%, and the content of low melting point organic fiber is 1%-10%.
Owing to employing dry method without spinning process so that glass fibre single fiber substantially completely, then use air-flow The non-woven fabrics becoming net to make is the thinnest, and grammes per square metre can be at 50-100 gram/m2Left and right.Owing to glass fibre is in combing Machine Tensile effect, glass fibre is very straight, and glass fibre does not bend, and glass fibre becomes horizontal plane uniformly to divide Cloth, do not have vertical non-woven fabrics plane runs through glass fibre, and therefore, the number of plies of multiple non-woven fabrics of stacking is very Many, glass fibre and glass fibre only have little point cantact.In addition rely between non-woven fabrics and non-woven fabrics and melt The organic fiber bonding changed, owing to special combing and airflow machine are few to glass damage, thin chopped fiber is also few, easily Becoming net, therefore the space of fiberglass particle contact and non-woven fabrics stratification does not has binding agent thin with what other ruptured Chopped fiber is filled, and decreases heat conduction surface, and heat-insulating property is greatly promoted.
The above-mentioned inside core heat conductivity using vacuum heat-insulating plate to use is at 1.0-1.8mw/m.k.And by Making glass fibre single fiber substantially completely in twice shredding and modified model carding machine, the felt that air lay is made is thin Grammes per square metre is at 50-80 gram/m2Left and right, owing to fiber is in carding machine Tensile effect, fiber is very straight, and fiber does not has Having bending, do not have the perforating fiber of vertical felt plane, the duplexer number of plies is a lot, special combing and airflow machine pair Glass damage is few, and thin chopped fiber is also few, and fiber and fiber only have little point cantact, fiber contacts and stacking The space formed does not has the thin chopped fiber of binding agent and other fracture to fill, and decreases heat conduction surface, absolutely Hot property is better than the non-woven fabrics using wet production, and it is simple to have technique, and production cost is low, saves The energy, does not has the advantages such as discharge of wastewater.
Embodiment 2
A kind of vacuum insulation panel, including:
Outsourcing material;And
Core material, is housed in the inside of described outsourcing material;
The inside of described outsourcing material can keep being in decompression state, and described core material includes embodiment 1 institute The inside core that the vacuum heat-insulating plate stated uses.
The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention not office Being limited to this, any those familiar with the art, can be easily in the technical scope that the invention discloses The change expected or replacement, all should contain within protection scope of the present invention.Therefore, the protection of the present invention Scope should be as the criterion with scope of the claims.

Claims (8)

1. the inside core that a vacuum heat-insulating plate uses, it is characterised in that: by multiple non-woven fabrics stackings Form;Described non-woven fabrics is that a plurality of glass fibre and low melting point organic fiber use dry method raw without spinning process Produce and manufacture;
In described non-woven fabrics, the most of glass fibre in described a plurality of glass fibre with described nothing Spin and extend in the surface direction that is substantially parallel of cloth.
The inside core that a kind of vacuum heat-insulating plate the most according to claim 1 uses, its feature exists In: the fiber diameter of described glass fibre is in 7-15 μm, and average fiber length is at 10-50mm.
The inside core that a kind of vacuum heat-insulating plate the most according to claim 1 uses, its feature exists In: the content of described glass fibre is 90-99%, and the content of low melting point organic fiber is 1%-10%.
The inside core that a kind of vacuum heat-insulating plate the most according to claim 1 uses, its feature exists In: it is not provided with binding agent between multiple non-woven fabrics described.
5. a vacuum insulation panel, it is characterised in that including:
Outsourcing material;And
Core material, is housed in the inside of described outsourcing material;
The inside of described outsourcing material can keep being in decompression state, and described core material includes that right is wanted Seek the inside core that the vacuum heat-insulating plate described in 1 uses.
The inside core that a kind of vacuum heat-insulating plate the most according to claim 5 uses, its feature exists In: in the inside core that described vacuum heat-insulating plate uses, the fiber diameter of glass fibre is at 7-15 μm, average fiber length is at 10-50mm.
The inside core that a kind of vacuum heat-insulating plate the most according to claim 5 uses, its feature exists In: in the inside core that described vacuum heat-insulating plate uses, the content of glass fibre is 90-99%, eutectic The content of some organic fiber is 1%-10%.
The inside core that a kind of vacuum heat-insulating plate the most according to claim 1 uses, its feature exists In: the inside core that described vacuum heat-insulating plate uses is not provided with binding agent between multiple non-woven fabrics.
CN201510815413.XA 2015-11-23 2015-11-23 Inner core material used for vacuum heat-insulating plate and vacuum heat-insulating plate CN106015838A (en)

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CN201510815413.XA CN106015838A (en) 2015-11-23 2015-11-23 Inner core material used for vacuum heat-insulating plate and vacuum heat-insulating plate
PCT/CN2016/095795 WO2017088532A1 (en) 2015-11-23 2016-08-18 Core material used for vacuum heat-insulation plate, and vacuum heat-insulation plate

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WO2017088721A1 (en) * 2015-11-23 2017-06-01 福建赛特新材股份有限公司 Manufacturing methods for inner core material used for vacuum insulation panel and vacuum insulation panel
CN107339549A (en) * 2017-06-30 2017-11-10 福建赛特新材股份有限公司 The core and its production method and vacuum heat-insulating plate that vacuum heat-insulating plate uses
CN107355640A (en) * 2017-07-19 2017-11-17 四川迈科隆真空新材料有限公司 The method and vacuum heat-insulating plate of core material of vacuum heat insulation plate are prepared using glass fibre aggregation leftover pieces
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
CN107630293A (en) * 2017-09-20 2018-01-26 宣汉正原微玻纤有限公司 A kind of preparation method and product of on-line continuous hot pressing dry vacuum insulated panel core material
CN109024096A (en) * 2018-08-20 2018-12-18 海宁睿诚科技股份有限公司 Dry method needleless pierces fiberglass vacuum insulation panel core material preparation method and products thereof
CN110260097A (en) * 2019-06-28 2019-09-20 江西晖烁新材料有限公司 A kind of preparation method and vacuum heat-insulating plate of core material of vacuum heat insulation plate

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WO2017088721A1 (en) * 2015-11-23 2017-06-01 福建赛特新材股份有限公司 Manufacturing methods for inner core material used for vacuum insulation panel and vacuum insulation panel
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CN107355640A (en) * 2017-07-19 2017-11-17 四川迈科隆真空新材料有限公司 The method and vacuum heat-insulating plate of core material of vacuum heat insulation plate are prepared using glass fibre aggregation leftover pieces
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
CN107630293A (en) * 2017-09-20 2018-01-26 宣汉正原微玻纤有限公司 A kind of preparation method and product of on-line continuous hot pressing dry vacuum insulated panel core material
CN107630293B (en) * 2017-09-20 2019-03-08 宣汉正原微玻纤有限公司 A kind of preparation method and product of on-line continuous hot pressing dry vacuum insulated panel core material
CN109024096A (en) * 2018-08-20 2018-12-18 海宁睿诚科技股份有限公司 Dry method needleless pierces fiberglass vacuum insulation panel core material preparation method and products thereof
CN110260097A (en) * 2019-06-28 2019-09-20 江西晖烁新材料有限公司 A kind of preparation method and vacuum heat-insulating plate of core material of vacuum heat insulation plate

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Application publication date: 20161012