CN111016363A - Rubbing-resistant flexible composite material - Google Patents

Rubbing-resistant flexible composite material Download PDF

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Publication number
CN111016363A
CN111016363A CN201911266819.1A CN201911266819A CN111016363A CN 111016363 A CN111016363 A CN 111016363A CN 201911266819 A CN201911266819 A CN 201911266819A CN 111016363 A CN111016363 A CN 111016363A
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China
Prior art keywords
layer
aging
film
flexible composite
buffer
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CN201911266819.1A
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Chinese (zh)
Inventor
吴家红
武国军
郭杰
陈思
刘圣千
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Inner Mongolia Synthetic Chemical Research Institute
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Inner Mongolia Synthetic Chemical Research Institute
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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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • 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
    • B32B27/08—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 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
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • 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
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
    • 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
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • 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
    • B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
    • 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
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • 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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64B—LIGHTER-THAN AIR AIRCRAFT
    • B64B1/00—Lighter-than-air aircraft
    • B64B1/58—Arrangements or construction of gas-bags; Filling arrangements
    • 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0261—Polyamide fibres
    • B32B2262/0269—Aromatic polyamide fibres
    • 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0276—Polyester fibres
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/31—Heat sealable
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B32B2307/7242—Non-permeable

Abstract

The invention relates to the technical field of composite material manufacturing, in particular to a rubbing-resistant flexible composite material. The anti-aging coating comprises a flexible anti-aging layer, an adhesive layer, a barrier layer, an adhesive layer, a buffer layer, an adhesive layer, a bearing layer, an adhesive layer and a heat-sealing layer from outside to inside in sequence. The anti-aging layer and the blocking layer, the blocking layer and the buffer layer, the bearing layer and the heat sealing layer are respectively connected through the bonding layer, and the layers are compounded through lamination to prepare the integrated material. According to the invention, the buffer layer and the heat-sealing layer are both made of thermoplastic polyurethane films, and are bonded with the force-bearing layer and the barrier layer through polyurethane adhesives, the thickness is 12-25 um, the buffer layer and the heat-sealing layer have certain barrier property, and simultaneously the flexibility of the buffer layer and the heat-sealing layer can buffer the kneading of the barrier layer and the aging-resistant layer by external force, so that the capsule material is protected, and no penetrating pinholes appear after 300 times of kneading.

Description

Rubbing-resistant flexible composite material
Technical Field
The invention relates to the technical field of composite material manufacturing, in particular to a rubbing-resistant flexible composite material.
Background
The aerostat is an aircraft which realizes ascending by utilizing buoyancy gas (hydrogen, helium and the like), realizes air stagnation and flying by power control, has unique performance advantages in the military and civil fields of border patrol, urban security, air communication relay, sightseeing and tourism, cargo transportation, scientific investigation and the like due to the characteristics of low manufacturing and using cost, good stealth, long air stagnation time, large bearing load and the like, and is highly concerned at home and abroad.
The flexible composite material is a key material for manufacturing and processing the buoyancy capsule of the aerostat. (1) The working environment of the aerostat has the characteristics of high-low temperature alternation, high-intensity ultraviolet radiation, high-concentration ozone and the like, and the environment is harsh on the aging condition of the material; (2) indexes such as surface density and strength of the aerostat capsule material are directly related to key indexes such as the standing time, the loading capacity and the flight safety of the aerostat; (3) meanwhile, in the processes of air bag processing and aerostat service, the material can be subjected to environmental tests such as kneading, friction, folding, curling, dragging and long-term continuous stress. Therefore, the flexible composite material for preparing the aerostat must have the properties of light weight, high strength, good ageing resistance, excellent barrier property, rubbing resistance, crease resistance, creep resistance and the like, and needs to have good processability and repair performance.
The flexible composite material commonly used for processing the aerostat generally has 7-layer structural characteristics of an anti-aging layer, an adhesive layer, a gas barrier layer, an adhesive layer, a bearing fabric layer and a heat sealing layer. This kind of 7 layers structural design can make flexible combined material have higher performance, but in aerostatics course of working, the resistant kneading performance of material is relatively poor, in the utricule course of working, especially processing later stage, because the utricule is bulky and weight is great, need often pull, curl the utricule, still need fold the packing to whole utricule when going out the warehouse entry transportation, these operations can make flexible combined material surface a plurality of pinholes of different sizes appear and lead to leaking gas, and difficult discovery and repair, seriously influence the gas tightness and the use of aerostatics utricule.
Disclosure of Invention
The technical problems to be solved by the invention are as follows:
the invention provides a rubbing-resistant flexible composite material with excellent processing performance, which aims to solve the problem that a plurality of pinholes with different sizes are formed on the surface of a flexible composite material to cause air leakage in the processing process of an aerostat, and the air tightness and the use of an aerostat capsule are seriously influenced because the pinholes are not easy to discover and repair.
The technical scheme adopted by the invention is as follows:
the utility model provides a resistant flexible composite who rubs, is ageing resistant layer, adhesive linkage, barrier layer, adhesive linkage, buffer layer, adhesive linkage, load layer, adhesive linkage and heat-seal layer by skin to inlayer in proper order, ageing resistant layer and barrier layer, barrier layer and buffer layer, load layer and heat-seal survey respectively through the adhesive linkage connection, each layer prepares into the integrated material through lamination complex.
Further, the anti-aging layer material is a PVF (polyvinyl fluoride) film or a PVDF (polyvinylidene fluoride) film, the thickness of the anti-aging layer material is 12-50 um, and the surface density of the anti-aging layer material is 15-80 g/m2。
Further, the bonding layer material is polyurethane adhesive, and the surface density is 2-25 g/m2。
Further, the material of the barrier layer is a PET (polyester) film or an EVOH (ethylene vinyl alcohol resin) film, the thickness of the barrier layer is 10-15 um, and the surface density of the barrier layer is 12-25 g/m2。
Further, the buffer layer is made of a TPU (thermoplastic polyurethane) film, the thickness of the TPU film is 12-25 um, and the surface density of the TPU film is 15-40 g/m2。
Further, the bearing layer material is Vectran (polyarylester) fiber fabric and aramid fiber fabric (F-12), and the density is 60-130 g/m2。
Further, the material of the heat sealing layer isThe TPU (thermoplastic polyurethane) film has the surface density of 15-40 g/m2。
The invention has the beneficial effects that:
the rubbing-resistant flexible composite material structure is additionally provided with the buffer layer, the buffer layer has certain barrier property, and meanwhile, the flexibility of the buffer layer can buffer rubbing of an external force on the barrier layer and the aging-resistant layer, so that the flexible composite material is well protected, and a penetrating pinhole is prevented from being generated in the rubbing process of the flexible composite material. The heat-sealing layer of the rubbing-resistant flexible composite material is a thermoplastic polyurethane film, is bonded with the bearing layer fabric by adopting a polyurethane adhesive, and has barrier, welding and buffer properties, and the prepared flexible composite material is soft and rubbing-resistant.
Drawings
FIG. 1: a schematic diagram of a structural form of a kneading-resistant flexible composite material.
Detailed Description
The invention is described in detail below with reference to the accompanying figure 1 and the detailed description:
the first embodiment is as follows: the rubbing-resistant flexible composite material is composed of 9 layers of structures, and comprises a flexible anti-aging layer, an adhesive layer, a barrier layer, an adhesive layer, a buffer layer, an adhesive layer, a bearing layer, an adhesive layer and a heat-sealing layer from outside to inside in sequence. The thickness of the anti-aging layer is 12-50 um, and the surface density is 15-80 g/m2(ii) a The density of the bonding layer surface is 2-25 g/m2(ii) a The thickness of the barrier layer is 10-15 um, and the surface density is 12-25 g/m2(ii) a The thickness of the buffer layer is 12-25 um, and the surface density is 15-40 g/m2(ii) a The density of the bearing layer surface is 60-130 g/m2(ii) a The surface density of the heat-sealing layer material is 15-40 g/m2The layers are integrated into an integrated multifunctional material through a lamination composite preparation process.
The second embodiment is as follows: the difference between the present embodiment and the first embodiment is that the anti-aging layer material is a polyvinyl fluoride (PVF) film or a polyvinylidene fluoride (PVDF) film. The rest is the same as the first embodiment.
The third concrete implementation mode: the difference between this embodiment and the first embodiment is that the material of the barrier layer is a PET film. The rest is the same as the first embodiment.
The fourth concrete implementation mode: the difference between the embodiment and the specific embodiment is that the bearing layer material is Vectran fiber fabric. The rest is the same as the first embodiment.
The fifth concrete implementation mode: this embodiment differs from the first embodiment in that the material of the buffer layer is a Thermoplastic Polyurethane (TPU) film. The rest is the same as the first embodiment.
The sixth specific implementation mode: this embodiment differs from the first embodiment in that the material of the heat seal layer is a Thermoplastic Polyurethane (TPU) film. The rest is the same as the first embodiment.
The seventh embodiment: the difference between this embodiment and the first embodiment is that the bonding layer material is a Polyurethane (PU) adhesive. The rest is the same as the first embodiment.
The specific implementation mode is eight: in the present embodiment, the rubbing-resistant flexible composite material includes, in order from the outside to the inside, an anti-aging layer, an adhesive layer 1, a barrier layer, an adhesive layer 2, a buffer layer, an adhesive layer 3, a force-bearing layer, an adhesive layer 4, and a heat-seal layer. The thickness of the aging-resistant layer is 37um, and the weight of the bonding layer 1 is 4g/m2The thickness of the barrier layer is 12 um, and the weight of the bonding layer 2 is 15g/m2The thickness of the buffer layer is 25um, and the weight of the bonding layer 3 is 14g/m2The density of the bearing layer surface is 95g/m2The weight of the adhesive layer 4 is 20g/m2And the thickness of the welding layer material is 20 um.
In the present embodiment, the material of the aging-resistant layer is a 37um white PVF film (trade name Tedlar) manufactured by DuPont corporation; the barrier layer material is a PET film with the thickness of 12 um; the buffer layer is made of a TPU film with the thickness of 25 um; the bearing layer material is 400D Vectran fiber square fabric with the surface density of 95g/m2(ii) a The welding layer is a polyether polyurethane film with the thickness of 20 um.
In the embodiment, the PVF film of the aging resistant layer and the PET film of the barrier layer, the PET film of the barrier layer and the polyurethane film of the buffer layer, the polyurethane film of the buffer layer and the carrier layer Vectran fabric, and the carrier layer Vectran fabric and the polyurethane film of the welding layer are bonded by adopting a polyurethane adhesive in a dry compounding manner.
The aerostat capsule material prepared by the embodiment has excellent rubbing resistance, and the specific performance data are as follows:
Figure 442283DEST_PATH_IMAGE001
the aerostat balloon material prepared according to the embodiment is kneaded 300 times by using the C mode in an FDT-02 kneading tester according to the method required by the ASTM F392 standard, and then the kneaded sample is subjected to a helium permeability test according to the GB/T1038-2000 test method, and compared with the helium permeability of the sample before being kneaded. The helium permeability of the pre-kneading bladder material was 0.67L/m224 h.atm, helium permeability of 0.71L/m after 300 rubs224h atm, no obvious change occurs, the rubbed sample faces to the lamplight, and no pinhole or bright spot defect appears on the surface of the sample, which indicates that the flexible composite material prepared by the embodiment has good rubbing resistance.
The specific implementation method nine: in the embodiment, the rubbing-resistant flexible composite material comprises an aging-resistant layer, an adhesive layer 1, a barrier layer, an adhesive layer 2, a buffer layer, an adhesive layer 3, a force-bearing layer, an adhesive layer 4 and a heat-sealing layer in sequence from outside to inside. The thickness of the aging-resistant layer is 25 um; the weight of the adhesive layer 1 was 3g/m2(ii) a The thickness of the barrier layer is 12 um; the weight of the adhesive layer 2 was 14g/m2(ii) a The thickness of the buffer layer is 20 um; the weight of the adhesive layer 3 is 15g/m2(ii) a The density of a bearing layer is 88g/m2(ii) a The weight of the adhesive layer 4 was 20g/m2(ii) a The thickness of the heat sealing layer material is 20 um.
In the embodiment, the anti-aging layer material is a white PVDF film with the thickness of 25 um; the barrier layer material is a PET film with the thickness of 12 um; the buffer layer material is a polyester polyurethane film with the thickness of 20 um; the bearing layer material is 400D Vectran fiber plain weave fabric with the surface density of 88g/m2(ii) a The heat sealing layer is a polyester polyurethane film with the thickness of 20 um.
In the embodiment, the PVDF film of the aging resistant layer and the PET film of the barrier layer, the PET film of the barrier layer and the polyurethane film of the buffer layer, the polyurethane film of the buffer layer and the carrier layer Vectran fabric, and the carrier layer Vectran fabric and the polyurethane film of the welding layer are all bonded by adopting a polyurethane adhesive in a dry composite mode.
The aerostat capsule material prepared by the embodiment has excellent rubbing resistance, and the specific performance data are as follows:
Figure 186117DEST_PATH_IMAGE002
the flexible composite material prepared by the embodiment is kneaded 300 times by using the C mode in the FDT-02 kneading tester according to the method required by the ASTM F392 standard, and then the kneaded sample is subjected to a helium permeability test according to the GB/T1038-2000 test method and compared with the helium permeability of the sample before being kneaded. The helium permeability of the pre-kneading bladder material was 0.69L/m224 h.atm, helium permeability of 0.78L/m after 300 rubs224h atm, no obvious change occurs, the rubbed sample faces to the lamplight, and no pinhole or bright spot defect appears on the surface of the sample, which indicates that the flexible composite material prepared by the embodiment has good rubbing resistance.

Claims (7)

1. A rubbing-resistant flexible composite material characterized by: the anti-aging composite material is characterized in that the anti-aging layer, the bonding layer, the blocking layer, the bonding layer, the buffer layer, the bonding layer, the bearing layer, the bonding layer and the heat sealing layer are sequentially arranged from the outer layer to the inner layer, the anti-aging layer and the blocking layer, the blocking layer and the buffer layer are respectively connected with the bearing layer through the bonding layer, and the layers are compounded to form the integrated material.
2. A rub resistant flexible composite as claimed in claim 1, wherein: the anti-aging layer is made of PVF (polyvinyl fluoride) film or PVDF (polyvinylidene fluoride) film, the thickness of the anti-aging layer is 12-50 um, and the surface density of the anti-aging layer is 15-80 g/m2。
3. A rub resistant flexible composite as claimed in claim 1, wherein: the bonding layer material is polyurethane adhesive with the surface density of 2-25 g/m2。
4. A rub resistant flexible composite as claimed in claim 1, wherein: the material of the barrier layer is a PET (polyester) film or an EVOH (ethylene vinyl alcohol resin) film, the thickness of the barrier layer is 10-15 um, and the surface density of the barrier layer is 12-25 g/m2。
5. A rub resistant flexible composite as claimed in claim 1, wherein: the buffer layer is made of a TPU (thermoplastic polyurethane) film, the thickness of the TPU film is 12-25 um, and the surface density of the TPU film is 15-40 g/m2。
6. A rub resistant flexible composite as claimed in claim 1, wherein: the bearing layer is made of Vectran (polyarylester) fiber fabric and aramid fiber fabric (F-12), and the density of the bearing layer is 60-130 g/m2。
7. A rub resistant flexible composite as claimed in claim 1, wherein: the material of the heat sealing layer is a TPU (thermoplastic polyurethane) film, and the surface density is 15-40 g/m2。
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111746089A (en) * 2020-06-18 2020-10-09 南通大学 Light high-barrier composite fabric and preparation method and application thereof
CN111959086A (en) * 2020-08-11 2020-11-20 中国电子科技集团公司第三十八研究所 Rapid preparation method of aerostat capsule material trial part
CN114905830A (en) * 2022-05-24 2022-08-16 东莞市光钛科技有限公司 Liquid metal mask non-woven fabric rubbing-resistant conductive material and preparation method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105173052A (en) * 2015-02-10 2015-12-23 东莞前沿技术研究院 Bag skin material and aerostat
CN108265529A (en) * 2016-12-30 2018-07-10 深圳光启空间技术有限公司 Envelop materials, utricule, aerostatics and envelop materials preparation method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105173052A (en) * 2015-02-10 2015-12-23 东莞前沿技术研究院 Bag skin material and aerostat
CN108265529A (en) * 2016-12-30 2018-07-10 深圳光启空间技术有限公司 Envelop materials, utricule, aerostatics and envelop materials preparation method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111746089A (en) * 2020-06-18 2020-10-09 南通大学 Light high-barrier composite fabric and preparation method and application thereof
CN111959086A (en) * 2020-08-11 2020-11-20 中国电子科技集团公司第三十八研究所 Rapid preparation method of aerostat capsule material trial part
CN111959086B (en) * 2020-08-11 2022-03-11 中国电子科技集团公司第三十八研究所 Rapid preparation method of aerostat capsule material trial part
CN114905830A (en) * 2022-05-24 2022-08-16 东莞市光钛科技有限公司 Liquid metal mask non-woven fabric rubbing-resistant conductive material and preparation method thereof
CN114905830B (en) * 2022-05-24 2024-04-05 东莞市光钛科技有限公司 Liquid metal mask non-woven fabric rubbing-resistant conductive material and preparation method thereof

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