CN109720068A - Polyethylene film and aerostat with insulating layer - Google Patents
Polyethylene film and aerostat with insulating layer Download PDFInfo
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- CN109720068A CN109720068A CN201711027078.2A CN201711027078A CN109720068A CN 109720068 A CN109720068 A CN 109720068A CN 201711027078 A CN201711027078 A CN 201711027078A CN 109720068 A CN109720068 A CN 109720068A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
- B32B15/085—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64B—LIGHTER-THAN AIR AIRCRAFT
- B64B1/00—Lighter-than-air aircraft
- B64B1/06—Rigid airships; Semi-rigid airships
- B64B1/14—Outer covering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64B—LIGHTER-THAN AIR AIRCRAFT
- B64B1/00—Lighter-than-air aircraft
- B64B1/40—Balloons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64B—LIGHTER-THAN AIR AIRCRAFT
- B64B1/00—Lighter-than-air aircraft
- B64B1/40—Balloons
- B64B1/50—Captive balloons
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/13—Phenols; Phenolates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/13—Phenols; Phenolates
- C08K5/132—Phenols containing keto groups, e.g. benzophenones
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/13—Phenols; Phenolates
- C08K5/134—Phenols containing ester groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
Abstract
The embodiment provides the polyethylene films with insulating layer, comprising: welding layer；Bearing layer is located on welding layer；Barrier layer is located on bearing layer；Insulating layer is located on barrier layer；Weathering layer is located on insulating layer.By adding the insulating layer containing metallic in aerostat polyethylene film, scattering and blocking effect using the metallic of addition, incident light most of light after the film of machine-shaping generates diffusing reflection or barrier, the phenomenon that effectively material temperature be avoided to increase, reduce the temperature difference of balloon interior.It, can also candidate range with further expansion for the raw material of aerostat in addition, by adding layers.The present invention also provides aerostats.
Description
Technical field
This application involves material films, more particularly, to the polyethylene film with insulating layer.
Background technique
Aerostat is a kind of unpowered aerostatics, be at present can few several aircraft that stratosphere works it
One, it is a kind of very important space exploration and and delivery vehicle.In the selection of aerostat material, usually with fabric
There is very high reliability for the composite skin material of carrier, but its is with high costs, using being very limited.And it is low in cost
Polyethylene film be applied to aerostat, cost can be greatly lowered, thus, polyethylene (PE) balloon becomes the following high air
A kind of trend of ball development.
During high altitude balloon flight, due to the difference on daytime and night solar radiation, the temperature difference is very big.Nocturnal temperature drop
Low, high temperature makes ball interior gas expansion, and sphere pressure constantly rises, and increased pressure is born by utricule, when temperature drops
When low, material embrittlement influences life of product.
In addition, aerostat polyethylene film is to comprehensive performance, (such as light transmittance, mechanical property, weather resistance, welding add
Work performance etc.) it is more demanding, the polyethylene film for other field is generally difficult to meet.
Summary of the invention
The present invention is contained from material thermal insulation property angle by introducing in the film layer of aerostat polyethylene film
The cooling agent of metallic, scattering and blocking effect using the metallic of addition, film of the incident light Jing Guo machine-shaping
Most of light generates diffusing reflection or barrier afterwards, thus the phenomenon that effectively material temperature being avoided to increase.
The embodiment provides a kind of polyethylene films, comprising: welding layer；Bearing layer is located at the welding layer
On；Barrier layer is located on the bearing layer；Insulating layer is located on the barrier layer；Weathering layer is located on the insulating layer.
In above-mentioned polyethylene film, wherein the insulating layer is by low density polyethylene (LDPE), linear metallocene low density polyethylene (LDPE)
It is constituted with metal powder.
In above-mentioned polyethylene film, wherein the metal powder includes one of aluminium powder, zinc powder, oxide powder and zinc and silver powder
With it is a variety of.
In above-mentioned polyethylene film, wherein in the insulating layer, low density polyethylene (LDPE), linear metallocene low-density are poly-
The mass percent that ethylene and metal powder account for the insulating layer is respectively 60~80%, 10~20% and 10~20%.
In above-mentioned polyethylene film, wherein the welding layer, the bearing layer, the barrier layer, the insulating layer and institute
The overall thickness for stating weathering layer is 5~80 microns.
In above-mentioned polyethylene film, wherein the welding layer, the bearing layer, the barrier layer, the insulating layer and institute
It is respectively 10~20%, 50~70%, 1~10%, 4~10% and 5 that the thickness for stating weathering layer, which accounts for the percentage of the overall thickness,
~15%.
In above-mentioned polyethylene film, wherein the welding layer is made of linear metallocene low density polyethylene (LDPE).
In above-mentioned polyethylene film, wherein the bearing layer is high density polyethylene (HDPE), low density polyethylene (LDPE) and linear cyclopentadienyl gold
Belong to the blended layer of low density polyethylene (LDPE).
In above-mentioned polyethylene film, wherein in the bearing layer, high density polyethylene (HDPE), low density polyethylene (LDPE) and linear
The mass percent that metallocene low density polyethylene (LDPE) accounts for the bearing layer is respectively 60~80%, 10~20% and 10~20%.
In above-mentioned polyethylene film, wherein the barrier layer is made of high density polyethylene (HDPE).
In above-mentioned polyethylene film, wherein the weathering layer is 2~5% by the mass percent for accounting for the weathering layer
Light stabilizer, 0.1~0.4% antioxidant and remaining linear metallocene low density polyethylene (LDPE) constitute.
In above-mentioned polyethylene film, wherein the light stabilizer includes the one of salicylate, benzophenone and titanium dioxide
Kind is a variety of, and the antioxidant includes one in butylated hydroxy anisole, dibutyl hydroxy toluene and tert-butyl hydroquinone
Kind is a variety of.
Another embodiment of the present invention provides a kind of aerostat, including the utricule with predetermined shape, the utricule
It is made by polyethylene film as described above.
By adding the insulating layer containing metallic in aerostat polyethylene film, the clipped wire of addition is utilized
The scattering of son and blocking effect, incident light most of light after the film of machine-shaping generate diffusing reflection or barrier, thus
The phenomenon that effectively material temperature being avoided to increase, reduces the temperature difference of balloon interior.In addition, by adding layers, it can also be further
Expand the candidate range of the raw material for aerostat.
Detailed description of the invention
Fig. 1 shows the structural schematic diagram of the polyethylene film with insulating layer for aerostat.
Specific embodiment
The present invention is from material thermal insulation property angle, by increasing insulating layer in aerostat polyethylene film,
The cooling agent containing metallic, scattering and blocking effect using the metallic of addition, incident light warp are introduced in insulating layer
Most of light generates diffusing reflection or barrier after crossing the film of machine-shaping, thus the phenomenon that effectively material temperature being avoided to increase.
In addition, due to the effect of insulating layer, also can reduce the temperature drop of balloon interior when temperature reduces outside balloon.
As shown in Figure 1, providing a kind of aerostat polyethylene film, it includes welding layer 1, bearing layer 2, barrier layer
3, insulating layer 4 and weathering layer 5.Five layers of the raw material melts through five extruders respectively, is plasticized, is expressed into five-layer co-squeezing die head,
Squeeze out composite membrane-forming, the film of extrusion again through blow molding, traction, folding, winding and obtain polyethylene film, distinguish from the inside to the outside
For welding layer 1, bearing layer 2, barrier layer 3, insulating layer 4 and weathering layer 5.The overall thickness of polyethylene film can be 5~80 microns,
Welding layer 1 is made of linear metallocene low density polyethylene (LDPE) (MLLDPE), accounts for the 10~20% of polyethylene film overall thickness.Load
Layer 2 is high density polyethylene (HDPE) (HDPE), low density polyethylene (LDPE) (LDPE) and linear metallocene low density polyethylene (LDPE) (MLLDPE)
Blended layer accounts for the 50~70% of polyethylene film overall thickness.In bearing layer 2, high density polyethylene (HDPE) (HDPE), low density polyethylene
Alkene (LDPE) and linear metallocene low density polyethylene (LDPE) (MLLDPE) account for the mass percent of bearing layer 2 be respectively 60~80%,
10~20% and 10~20%.Barrier layer 3 is made of high density polyethylene (HDPE) (HDPE), and barrier layer 3 accounts for polyethylene film overall thickness
1%~10%.Insulating layer 4 by low density polyethylene (LDPE) (LDPE), linear metallocene low density polyethylene (LDPE) (MLLDPE) blending
It does carrier and adds the cooling agent containing metallic and constitute, insulating layer 4 accounts for the 4%~10% of polyethylene film overall thickness.?
In in some embodiments, the cooling agent containing metallic is metal powder, including but not limited to aluminium powder, zinc powder, oxide powder and zinc and silver
One of powder and a variety of.In insulating layer 4, low density polyethylene (LDPE) (LDPE), linear metallocene low density polyethylene (LDPE)
(MLLDPE) and the mass percent of metal powder is respectively 60~80%, 10~20% and 10~20%.
Weathering layer 5 is 2~5% light stabilizer, 0.1~0.4% antioxidant by the mass percent for accounting for weathering layer 5
With remaining linear metallocene low density polyethylene (LDPE) (MLLDPE) constitute, weathering layer 5 account for polyethylene film overall thickness 5~
15%.Wherein, light stabilizer may include the one or more of salicylate, benzophenone and titanium dioxide；Antioxidant can
With include one of butylated hydroxy anisole (BHA), dibutyl hydroxy toluene (BHT) and tert-butyl hydroquinone (TBHQ) or
It is a variety of.
The present invention also provides a kind of aerostats, and including the utricule with predetermined shape, the utricule is by as described above
Polyethylene film is made.
The application is illustrated below with reference to specific embodiment, so that those skilled in the art more fully understand this Shen
Please.
Embodiment 1
Be prepared by the following method including welding layer 1, bearing layer 2, barrier layer 3, insulating layer 4 and weathering layer 5 polyethylene
Film: the raw material of each layer is melted through five extruders respectively, is plasticized, being expressed into five-layer co-squeezing die head, squeezes out composite membrane-forming, is squeezed out
Film again through blow molding, traction, folding, winding and obtain polyethylene film.
The overall thickness of polyethylene film is 80 μm, and welding layer 1, bearing layer 2, barrier layer 3, insulating layer 4, weathering layer 5 are distinguished
Account for 15%, 60%, 5%, 10%, the 10% of overall thickness.High density polyethylene (HDPE) (HDPE), low density polyethylene (LDPE) in bearing layer 2
(LDPE) and linear metallocene low density polyethylene (LDPE) (MLLDPE) to account for the mass percent of bearing layer 2 be respectively 80%, 10% and
10%.Insulating layer 4 is made of low density polyethylene (LDPE) (LDPE), linear metallocene low density polyethylene (LDPE) (MLLDPE) and aluminium powder, and
And it is respectively 60%, 20% and 20% that they, which account for the mass percent of insulating layer 4,.Light stabilizer in weathering layer 5 is salicylic acid
Ester, the mass percent for accounting for weathering layer 5 is 2%, and antioxidant is butylated hydroxy anisole (BHA), additive amount 0.1%.
Pouch is made with polyethylene film in prepared aerostat, and places temperature sensor inside, by gained
Sack is placed in high-low temperature chamber, and when spin manifold temperature is down to -47.4 DEG C, bag interior temperature is only -36.8 DEG C, when cabinet temperature
When degree rises to 52.6 DEG C, bag interior temperature is only 38.9 DEG C.
Embodiment 2
It include welding layer 1, bearing layer 2, barrier layer 3, insulating layer 4 and weather-proof using method preparation similar to Example 1
The polyethylene film of layer 5.The overall thickness of polyethylene film is 5 μm, welding layer 1, bearing layer 2, barrier layer 3, insulating layer 4, weather-proof
Layer 5 accounts for 10%, 65%, 10%, 4%, the 11% of overall thickness respectively.High density polyethylene (HDPE) (HDPE) in bearing layer 2, low-density
Polyethylene (LDPE) and linear metallocene low density polyethylene (LDPE) (MLLDPE) account for the mass percent of bearing layer 2 be respectively 70%,
15% and 15%.Insulating layer 4 is by low density polyethylene (LDPE) (LDPE), linear metallocene low density polyethylene (LDPE) (MLLDPE) and zinc powder structure
At, and it is respectively 80%, 10% and 10% that they, which account for the mass percent of insulating layer 4,.Light stabilizer in weathering layer 5 is two
Benzophenone, the mass percent for accounting for weathering layer 5 is 5%, and antioxidant is dibutyl hydroxy toluene (BHT), and additive amount is
0.4%.
Pouch is made with polyethylene film in prepared aerostat, and places temperature sensor inside, by gained
Sack is placed in high-low temperature chamber, and when spin manifold temperature is down to -53.4 DEG C, bag interior temperature is only -43.8 DEG C, when cabinet temperature
When degree rises to 68.6 DEG C, bag interior temperature is only 55.9 DEG C.
Embodiment 3
It include welding layer 1, bearing layer 2, barrier layer 3, insulating layer 4 and weather-proof using method preparation similar to Example 1
The polyethylene film of layer 5.The overall thickness of polyethylene film is 40 μm, welding layer 1, bearing layer 2, barrier layer 3, insulating layer 4, weather-proof
Layer 5 accounts for 20%, 60%, 5%, 10%, the 5% of overall thickness respectively.High density polyethylene (HDPE) (HDPE) in bearing layer 2, low-density
Polyethylene (LDPE) and linear metallocene low density polyethylene (LDPE) (MLLDPE) account for the mass percent of bearing layer 2 be respectively 60%,
20% and 20%.Insulating layer 4 is by low density polyethylene (LDPE) (LDPE), linear metallocene low density polyethylene (LDPE) (MLLDPE) and zinc oxide
Powder is constituted, and it is respectively 70%, 15% and 15% that they, which account for the mass percent of insulating layer 4,.Light stabilizer in weathering layer 5
For titanium dioxide, the mass percent for accounting for weathering layer 3 is 3%, and antioxidant is tert-butyl hydroquinone (TBHQ), and additive amount is
0.2%.
Pouch is made with polyethylene film in prepared aerostat, and places temperature sensor inside, by gained
Sack is placed in high-low temperature chamber, and when spin manifold temperature is down to -38.9 DEG C, bag interior temperature is only -25.8 DEG C, when cabinet temperature
When degree rises to 45 DEG C, bag interior temperature is only 32.8 DEG C.
Embodiment 4
It include welding layer 1, bearing layer 2, barrier layer 3, insulating layer 4 and weather-proof using method preparation similar to Example 1
The polyethylene film of layer 5.The overall thickness of polyethylene film is 20 μm, welding layer 1, bearing layer 2, barrier layer 3, insulating layer 4, weather-proof
Layer 5 accounts for 20%, 50%, 8%, 7%, the 15% of overall thickness respectively.High density polyethylene (HDPE) (HDPE) in bearing layer 2, low-density
Polyethylene (LDPE) and linear metallocene low density polyethylene (LDPE) (MLLDPE) account for the mass percent of bearing layer 2 be respectively 65%,
20% and 15%.Insulating layer 4 is by low density polyethylene (LDPE) (LDPE), linear metallocene low density polyethylene (LDPE) (MLLDPE) and silver powder structure
At, and it is respectively 75%, 15% and 10% that they, which account for the mass percent of insulating layer 4,.Light stabilizer in weathering layer 5 is two
Benzophenone, the mass percent for accounting for weathering layer 5 is 4%, and antioxidant is dibutyl hydroxy toluene (BHT), and additive amount is
0.3%.
Pouch is made with polyethylene film in prepared aerostat, and places temperature sensor inside, by gained
Sack is placed in high-low temperature chamber, and when spin manifold temperature is down to -41.5 DEG C, bag interior temperature is only -31.8 DEG C, when cabinet temperature
When degree rises to 58.5 DEG C, bag interior temperature is only 45.9 DEG C.
Embodiment 5
It include welding layer 1, bearing layer 2, barrier layer 3, insulating layer 4 and weather-proof using method preparation similar to Example 1
The polyethylene film of layer 5.The overall thickness of polyethylene film is 70 μm, welding layer 1, bearing layer 2, barrier layer 3, insulating layer 4, weather-proof
Layer 5 accounts for 15%, 70%, 1%, 8%, the 6% of overall thickness respectively.High density polyethylene (HDPE) (HDPE), low-density in bearing layer 2 is poly-
Ethylene (LDPE) and linear metallocene low density polyethylene (LDPE) (MLLDPE) account for the mass percent of bearing layer 2 be respectively 60%,
20% and 20%.Insulating layer 4 is by low density polyethylene (LDPE) (LDPE), linear metallocene low density polyethylene (LDPE) (MLLDPE) and zinc oxide
Powder is constituted, and it is respectively 70%, 15% and 15% that they, which account for the mass percent of insulating layer 4,.Light stabilizer in weathering layer 5
For titanium dioxide, the mass percent for accounting for weathering layer 3 is 3%, and antioxidant is tert-butyl hydroquinone (TBHQ), and additive amount is
0.2%.
Pouch is made with polyethylene film in prepared aerostat, and places temperature sensor inside, by gained
Sack is placed in high-low temperature chamber, and when spin manifold temperature is down to -49.9 DEG C, bag interior temperature is only -38.8 DEG C, when cabinet temperature
When degree rises to 55 DEG C, bag interior temperature is only 42.5 DEG C.
Embodiment 6
It include welding layer 1, bearing layer 2, barrier layer 3, insulating layer 4 and weather-proof using method preparation similar to Example 1
The polyethylene film of layer 5.The overall thickness of polyethylene film is 10 μm, welding layer 1, bearing layer 2, barrier layer 3, insulating layer 4, weather-proof
Layer 5 accounts for 15%, 55%, 7%, 8%, the 15% of overall thickness respectively.High density polyethylene (HDPE) (HDPE) in bearing layer 2, low-density
Polyethylene (LDPE) and linear metallocene low density polyethylene (LDPE) (MLLDPE) account for the mass percent of bearing layer 2 be respectively 75%,
10% and 15%.Insulating layer 4 is by low density polyethylene (LDPE) (LDPE), linear metallocene low density polyethylene (LDPE) (MLLDPE) and silver powder structure
At, and it is respectively 75%, 15% and 10% that they, which account for the mass percent of insulating layer 4,.Light stabilizer in weathering layer 5 is two
Benzophenone, the mass percent for accounting for weathering layer 5 is 3%, and antioxidant is dibutyl hydroxy toluene (BHT), and additive amount is
0.3%.
Pouch is made with polyethylene film in prepared aerostat, and places temperature sensor inside, by gained
Sack is placed in high-low temperature chamber, and when spin manifold temperature is down to -44.5 DEG C, bag interior temperature is only -33.7 DEG C, when cabinet temperature
When degree rises to 53.5 DEG C, bag interior temperature is only 40.9 DEG C.
By embodiment 1-6 it is found that by adding the insulating layer containing metallic in aerostat polyethylene film,
Scattering and blocking effect using the metallic of addition, incident light most of light after the film of machine-shaping generate unrestrained
Reflection or barrier, so that the phenomenon that effectively material temperature being avoided to increase, reduces the temperature difference of balloon interior.
Normally, those skilled in the art avoid aerostat by promoting the high/low temperature mechanical property of polyethylene film
The biggish problem of the temperature difference in flight course.However, applicant of the present invention has found, by adding in polyethylene film containing gold
The insulating layer for belonging to particle, equally also can achieve the problem for avoiding the aerostat temperature difference larger, and also further expansion is used
In the candidate range of the raw material of aerostat.
Claims (13)
1. a kind of polyethylene film, comprising:
Welding layer；
Bearing layer is located on the welding layer；
Barrier layer is located on the bearing layer；
Insulating layer is located on the barrier layer；
Weathering layer is located on the insulating layer.
2. polyethylene film according to claim 1, which is characterized in that the insulating layer is by low density polyethylene (LDPE), linear
Metallocene low density polyethylene (LDPE) and metal powder are constituted.
3. polyethylene film according to claim 2, which is characterized in that the metal powder includes aluminium powder, zinc powder, zinc oxide
One of powder and silver powder and a variety of.
4. polyethylene film according to claim 2, which is characterized in that in the insulating layer, low density polyethylene (LDPE), line
It is respectively 60~80%, 10~20% and that property metallocene low density polyethylene (LDPE) and metal powder, which account for the mass percent of the insulating layer,
10~20%.
5. polyethylene film according to claim 1, which is characterized in that the welding layer, the bearing layer, the barrier
The overall thickness of layer, the insulating layer and the weathering layer is 5~80 microns.
6. polyethylene film according to claim 5, which is characterized in that the welding layer, the bearing layer, the barrier
It is respectively 10~20%, 50~70%, 1 that the thickness of layer, the insulating layer and the weathering layer, which accounts for the percentage of the overall thickness,
~10%, 4~10% and 5~15%.
7. polyethylene film according to claim 1, which is characterized in that the welding layer is gathered by linear metallocene low-density
Ethylene is constituted.
8. polyethylene film according to claim 1, which is characterized in that the bearing layer is high density polyethylene (HDPE), low close
Spend the blended layer of polyethylene and linear metallocene low density polyethylene (LDPE).
9. polyethylene film according to claim 8, which is characterized in that high density polyethylene (HDPE), low in the bearing layer
Density polyethylene and linear metallocene low density polyethylene (LDPE) account for the mass percent of the bearing layer be respectively 60~80%, 10~
20% and 10~20%.
10. polyethylene film according to claim 1, which is characterized in that the barrier layer is made of high density polyethylene (HDPE).
11. polyethylene film according to claim 1, which is characterized in that the weathering layer is by accounting for the matter of the weathering layer
Amount percentage is 2~5% light stabilizer, 0.1~0.4% antioxidant and remaining linear metallocene low density polyethylene (LDPE)
It constitutes.
12. polyethylene film according to claim 11, which is characterized in that the light stabilizer includes salicylate, two
Benzophenone and titanium dioxide it is one or more, the antioxidant include butylated hydroxy anisole, dibutyl hydroxy toluene and
One of tert-butyl hydroquinone is a variety of.
13. a kind of aerostat, including the utricule with predetermined shape, the utricule is by any one of such as claim 1-12 institute
The polyethylene film stated is made.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711027078.2A CN109720068A (en) | 2017-10-27 | 2017-10-27 | Polyethylene film and aerostat with insulating layer |
| PCT/CN2018/083662 WO2019080462A1 (en) | 2017-10-27 | 2018-04-19 | Polyethylene film having thermal insulation layer, and high-altitude balloon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711027078.2A CN109720068A (en) | 2017-10-27 | 2017-10-27 | Polyethylene film and aerostat with insulating layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109720068A true CN109720068A (en) | 2019-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711027078.2A Pending CN109720068A (en) | 2017-10-27 | 2017-10-27 | Polyethylene film and aerostat with insulating layer |
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| CN (1) | CN109720068A (en) |
| WO (1) | WO2019080462A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102317356A (en) * | 2009-02-17 | 2012-01-11 | 弗纳技术股份有限公司 | Polyethylene films having improved barrier properties |
| CN102754575A (en) * | 2012-06-28 | 2012-10-31 | 上海普拉斯克塑料有限公司 | Insect prevention and temperature reduction film |
| CN103131070A (en) * | 2011-11-29 | 2013-06-05 | 上海紫华企业有限公司 | Low-permeability and high-strength film and preparation method of the same |
| CN205601304U (en) * | 2016-04-12 | 2016-09-28 | 杭州科能新材料科技有限公司 | High altitude resistance to compression membrane |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2834848B2 (en) * | 1990-05-31 | 1998-12-14 | 三菱化学株式会社 | balloon |
| CN101711200B (en) * | 2007-04-28 | 2014-12-03 | 卡马尔·阿拉维 | Flexible multi-layer material, preferably for an inflatable balloon casing, and method for the production of an inflatable casing |
| CN201970524U (en) * | 2010-08-12 | 2011-09-14 | 郭颀 | Light capsule composite material with heat reflecting layer |
| CN104670474A (en) * | 2015-01-30 | 2015-06-03 | 东莞前沿技术研究院 | Capsule material, method for sewing same and aerostat |
-
2017
- 2017-10-27 CN CN201711027078.2A patent/CN109720068A/en active Pending
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2018
- 2018-04-19 WO PCT/CN2018/083662 patent/WO2019080462A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102317356A (en) * | 2009-02-17 | 2012-01-11 | 弗纳技术股份有限公司 | Polyethylene films having improved barrier properties |
| CN103131070A (en) * | 2011-11-29 | 2013-06-05 | 上海紫华企业有限公司 | Low-permeability and high-strength film and preparation method of the same |
| CN102754575A (en) * | 2012-06-28 | 2012-10-31 | 上海普拉斯克塑料有限公司 | Insect prevention and temperature reduction film |
| CN205601304U (en) * | 2016-04-12 | 2016-09-28 | 杭州科能新材料科技有限公司 | High altitude resistance to compression membrane |
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| Publication number | Publication date |
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| WO2019080462A1 (en) | 2019-05-02 |
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Application publication date: 20190507 |