CN114953615A - Flexible bending-resistant high-heat-dissipation composite fabric - Google Patents

Flexible bending-resistant high-heat-dissipation composite fabric Download PDF

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Publication number
CN114953615A
CN114953615A CN202210644269.8A CN202210644269A CN114953615A CN 114953615 A CN114953615 A CN 114953615A CN 202210644269 A CN202210644269 A CN 202210644269A CN 114953615 A CN114953615 A CN 114953615A
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China
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heat
layer
material layer
resistant high
fiber manufacturing
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Inventor
穆俊江
陈星�
韦雁途
邹高连
李青深
欧金文
卢忠莹
施普宁
李钊
莫自鸣
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Wuzhou Hgp Advanced Materials Technology Corp ltd
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Wuzhou Hgp Advanced Materials Technology Corp ltd
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Priority to CN202210644269.8A priority Critical patent/CN114953615A/en
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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
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/005—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile
    • B32B9/007—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile comprising carbon, e.g. graphite, composite carbon
    • 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
    • B32B15/14—Layered products comprising a layer of metal 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
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/18—Layered products comprising a layer of metal comprising iron or steel
    • 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
    • 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
    • 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
    • B32B5/08—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 the fibres or filaments of a layer being of different substances, e.g. conjugate fibres, mixture of different 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
    • 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
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance 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
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/041—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of metal
    • 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
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/047—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material made of fibres or filaments
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/83—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with metals; with metal-generating compounds, e.g. metal carbonyls; Reduction of metal compounds on textiles
    • 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/06—Vegetal fibres
    • B32B2262/062—Cellulose fibres, e.g. cotton
    • 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
    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/202—Conductive
    • 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
    • B32B2307/302—Conductive
    • 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
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/54—Yield strength; Tensile strength
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/02—Natural fibres, other than mineral fibres
    • D06M2101/04—Vegetal fibres
    • D06M2101/06—Vegetal fibres cellulosic
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16—Synthetic fibres, other than mineral fibres
    • D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/32—Polyesters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Abstract

The invention belongs to the field of cloth skin fabrics, and particularly relates to a flexible bending-resistant high-heat-dissipation composite fabric and a cooling mat prepared from the same. The flexible bending-resistant high-heat-dissipation composite fabric with the ventilation function comprises a heat conduction material layer, an adhesive layer and a conductive fiber manufacturing layer, wherein the heat conduction material layer is adhered to the surface of one side of the conductive fiber manufacturing layer through the adhesive layer; or the surfaces of the two sides of the heat conducting material layer are respectively bonded with the conductive fiber manufacturing material layer through an adhesive layer, so that the breathable flexible bending-resistant high-heat-dissipation composite fabric is obtained. The invention compounds the heat conducting material layer of the through hole and the conductive fiber manufacturing object, so that the composite material has excellent heat conducting performance and good flexibility. The material can be used for electric competitive chairs, yoga mats, seat cushions, summer sleeping mats, mouse pads, backpacks and the like, has heat-conducting property superior to that of pure metals and other heat-conducting materials, and has cuttable property and good flexibility. The material has the advantages of simple production process, energy conservation, environmental protection, strong applicability and large-scale production.

Description

Flexible bending-resistant high-heat-dissipation composite fabric
Technical Field
The invention relates to the field of cloth skin fabrics, in particular to a flexible bending-resistant high-heat-dissipation composite fabric and a cooling mat prepared from the same.
Background
With the rapid development of social science and technology, more and more scenes are needed for people to sit in a closed environment for a long time. Particularly in summer, the buttocks and the back of a person are in contact with the seat for a long time, air cannot flow through the contact surface, and the temperature of the cushion and the backrest is sharply increased, so that the skin of the person feels stuffy and hard to endure. Skin diseases such as pressure sores and eczema can also occur after long-term sitting, and diseases such as poor blood circulation of lower limbs, cervical spondylosis, cardiovascular and cerebrovascular hidden troubles and the like can also occur seriously. The current commonly used flexible materials comprise bamboo, hemp, grass, leather, plastics and the like, and the materials have very small heat conductivity coefficient which is basically between 0.05 and 0.5W/m.K, poor heat conductivity and poor air permeability. In order to relieve the rapid rise of the temperature of the cushion and the backrest after sedentary sitting, people usually choose to reduce the temperature of the air conditioner, so that the waste of energy is increased, and therefore a high-thermal-conductivity flexible material is required to respond to the call of energy conservation and emission reduction in China.
At present, products in the market dissipate heat through a low specific heat capacity material and a phase change material, and the contact area of the low specific heat capacity material and a human body can quickly reach the temperature of the surface of the human body, so that people cannot feel cool. The phase-change material has the defects of small heat conductivity coefficient, small density and small heat storage capacity per unit volume. And because of solid-liquid transformation or sublimation (polyalcohol) and the like, the phase-change material needs to be in a sealed container in the using process, so that the heat transfer resistance is increased, and the cost of the phase-change heat absorbing device is greatly increased.
Typically, the average designer attempts to add a ventilation function to the seat to address the above-mentioned problems. The fan is arranged in the seat to enable air to flow upwards from the lower part of the cushion to increase the air circulation between the buttocks and the cushion, so that the problem of damp and hot for long-time sitting at high temperature is solved. A utility model patent (CN 215398317U) named as ' a ventilated cushion ' discloses ' a ventilated cushion, wherein the cushion body comprises a cushion surface layer, an air bag layer, a comfortable layer and a cushion bottom layer which are sequentially arranged; the power assembly initiates the infusion of air into the comfort layer and the exit of air from all directions of the comfort layer. The ventilation cushion with the structure can achieve the effect that the air outlet at each position of the cushion is uniform when no person sits on the cushion, but once the person sits on the cushion to press the air bag and the buttocks of the human body block the air outlet, the air outlet distribution of the cushion becomes very nonuniform, the position pressed by the buttocks has extremely large wind resistance, and the air circulation is less; the wind resistance at the uncompressed position is small, and the air outlet is large. The result is that the temperature difference of each position of the human body is large, and the human body feels uncomfortable.
At present, products in the market are subjected to heat conduction and heat dissipation through metal materials, particularly copper and aluminum, although the heat conductivity coefficient of copper is 398W/(m.K), the application of copper is limited by high density, high specific heat capacity, easy oxidation, hard texture and the like, and the heat conductivity coefficient of aluminum is 237W/(m.K), so that the requirements of the existing products on heat conduction and heat dissipation are difficult to meet.
The graphite material is a material with excellent heat conductivity, the heat conductivity coefficient of the rolled expanded graphite is between 200-1800W/(m.K), and the heat conductivity coefficient of the artificially synthesized graphite, such as the graphite prepared by a pi film calcining method, can reach between 900-1800W/(m.K), and shows excellent performance in the aspect of thermodynamics.
However, the graphite material is mainly prepared by a method of directly rolling treated graphite and methods of high polymer carbonization, graphitization and the like, and the single graphite sheet heat dissipation material has low tensile strength, is fragile, has more particles and dust, and is difficult to meet the use scene of repeated rolling, curling and stretching in daily life.
The utility model provides an "use novel cold of heat conduction graphite paper to fill up" utility model patent (CN 208798966U), discloses "use novel cold of heat conduction graphite paper to fill up, including cold the pad, the cool comfortable layer that the upper surface was for contacting with human skin on the pad, and cold inside one or two radiating core standing grooves that are provided with of pad, placed built-in radiating core in the standing groove, built-in radiating core surface area is less than cold pad surface area, two radiating core standing groove parallel arrangement, placed a built-in radiating core in every standing groove, radiating core and radiating strip adopt heat conduction graphite paper to process and make. Can quickly dissipate the heat transferred by the human body to the contact cool cushion (mat) area, so that the contact area is always kept lower than the temperature of the surface of the human body. The cooling mat of this kind of structure uses single graphite flake as heat conduction heat dissipation layer, does not do the flexible resistant crooked processing to the graphite flake, and in the in-service use, through human relapse roll the back, the graphite flake can fracture, makes its heat conduction heat-sinking capability worsen.
Therefore, a flexible bending-resistant high-heat-dissipation composite fabric with high durability, good flexibility, high heat conductivity coefficient, low density and small specific heat capacity is needed to solve the defects of the prior art.
Disclosure of Invention
The invention aims to provide a flexible bending-resistant high-heat-dissipation composite fabric which comprises a graphite material and a conductive fiber manufacturing object, wherein the graphite material and the conductive fiber manufacturing object are bonded and fixed, can be automatically and continuously produced, can be curled and stored, and is convenient to use. The conductive fiber manufacturing object is usually used as a shielding material, the performance that the heat conductivity coefficient of the conductive fiber manufacturing object is 5-10 times higher than that of the non-conductive fiber manufacturing object is usually ignored, after the graphite material and the conductive fiber manufacturing object are bonded, the heat conduction and radiation effect is excellent, the flexibility is good, the application range is wide, and the defects in the prior art are overcome.
The technical scheme of the invention is as follows:
a flexible bending-resistant high-heat-dissipation composite fabric comprises a heat-conducting material layer, an adhesive layer and a conductive fiber manufacturing layer;
the heat conducting material layer is adhered to the surface of one side of the conductive fiber manufacturing material layer through an adhesive layer, or the surfaces of the two sides of the heat conducting material layer are respectively adhered to the conductive fiber manufacturing material layer through an adhesive layer;
the total thickness of the heat conducting material layer is between 50 and 500 mu m, and the heat conductivity coefficient is between 300-1600W/(m.K);
the heat conducting material layer is any one of the following materials: not more than four layers of rolled expanded graphite, or not more than four layers of artificially synthesized graphite, or a composite material with not more than four layers of metal foil, rolled expanded graphite and artificially synthesized graphite; wherein the metal foil is copper foil or aluminum foil, and the thickness of the metal foil is 4-50 μm;
the conductive fiber manufacturing layer comprises a fiber textile and a conductive layer; the conductive fiber manufacturing layer is formed on the surface of the fiber textile fabric by any one method of magnetron sputtering, electroplating, chemical plating and coating;
the thickness of the conductive fiber manufactured product layer is 5-300 mu m, and the constant force elongation measured by adopting a constant force value of 25N is less than 10%.
Preferably, the rolled expanded graphite is obtained by rolling expanded graphite with the purity of 90-99.99%, the thermal conductivity coefficient is between 300-700W/(m.K), and the thickness is between 50-500 um;
preferably, the artificially synthesized graphite is a graphite sheet prepared by carbonizing and graphitizing polyimide (PI film), the heat conductivity coefficient is between 700-1600W/(m.K), and the thickness is between 20-100 um;
preferably, the heat conducting material layer is provided with through holes, and the porosity is 1% -50%;
preferably, when the heat conducting material layer is compounded by more than two layers, the layers are connected by an adhesive layer;
preferably, the adhesive layer is any one of epoxy resin, acrylic resin, phenolic resin, urea resin, melamine-formaldehyde resin, organic silicon resin, furan resin, unsaturated polyester, acrylic resin, polyimide, polybenzimidazole, phenolic-polyvinyl acetal, phenolic-polyamide, phenolic-epoxy resin or epoxy-polyamide, and the thickness of the adhesive layer is 5-100 um;
preferably, the fiber textile is any one of polyester fiber textile cloth, cotton textile cloth and polyester fiber and cotton blended cloth;
preferably, the conductive layer is a metal such as copper, iron, nickel, aluminum, gold, silver, titanium, or an alloy thereof, or a simple substance or compound of carbon;
preferably, the conductive fiber manufacturing layer is provided with through holes, and the porosity is 1% -50%.
The invention has the beneficial technical effects that:
(1) by utilizing the technical scheme of the invention, the layer with the heat conduction material is connected with the conductive fiber manufactured material layer through the adhesive layer to manufacture the flexible bending-resistant high-heat-dissipation composite fabric, and the conductive fiber manufactured material layer has the characteristics of good flexibility and higher tensile strength, so that the graphite material can be effectively protected from being broken under the condition of repeated bending. Compared with metal materials, the material has better heat-conducting property and excellent flexibility; compared with graphite materials, the material has better flexibility, bending resistance and stripping resistance; compared with the common fabric, the fabric has extremely high heat-conducting property.
(2) The invention discloses a flexible bending-resistant high-heat-dissipation composite fabric, wherein through holes are formed in a heat conduction material layer, an adhesive layer and a conductive fiber manufacturing layer, and the through holes of the heat conduction material layer are communicated with the through holes of the adhesive layer. The structure can increase the air circulation of the high-heat-dissipation composite fabric, is beneficial to discharging moisture generated by human body due to sweating, and reduces stuffiness. If the high-heat-dissipation composite fabric is subjected to forced ventilation by using the fan, the through holes can guide airflow to the skin of a human body to cool the skin. The graphite material can radiate absorbed human body heat to the environment through heat radiation and natural air convection, thereby maintaining a temperature lower than that of a human body and ensuring that a contact part of the human body does not generate high temperature.
(3) In the technical scheme of the invention, the conductive fiber manufacturing layer can use conductive cloth, the conductive cloth is a flexible material for conducting surface conductivity on polyester fiber woven cloth, cotton woven cloth and blended cloth of polyester fiber and cotton, the flexible material has lower resistance in the plane direction and the thickness direction, can conduct heat through electrons, and has the thermal conductivity coefficient of 1-5W/(m.K). Compared with materials such as bamboo, hemp, grass, leather, plastics and the like, the heat conducting capacity of the conductive cloth is 2-10 times that of the materials, the conductive cloth is used as a conductive fiber manufacturing layer, the heat conducting and radiating performance can be better improved, particularly, the heat conducting capacity in the thickness direction can be used for conducting heat of a human body from a contact interface to a graphite layer more quickly, the temperature at the contact interface cannot be continuously increased, and the skin of the human body feels comfortable.
(4) According to the method, the graphite material and flexible fiber textile composite material can be prepared into different composite materials according to different requirements, and the graphite material with different thicknesses is selected according to actual requirements. And the production process for compounding the graphite material and the conductive fiber manufacturing layer is simple, energy-saving and environment-friendly, has strong applicability and can be produced in a large scale.
Drawings
FIG. 1 is a schematic structural diagram of a flexible bending-resistant high-heat-dissipation composite fabric according to the present invention;
FIG. 2 is a schematic structural diagram of a flexible bending-resistant high-heat-dissipation composite fabric according to the present invention;
fig. 3 is another schematic structural diagram of the flexible bending-resistant high-heat-dissipation composite fabric of the invention.
Detailed Description
The invention will now be further described with reference to specific examples,
example 1
As shown in fig. 1, a flexible bending-resistant high-heat-dissipation composite fabric comprises a heat-conducting material layer (11), an adhesive layer (12) and a conductive fiber manufacturing layer (13);
the surfaces of the two sides of the heat conducting material layer (11) are respectively bonded with the conductive fiber manufacturing layer (13) through a layer of adhesive layer (12);
the heat conducting material layer is a layer of rolled expanded graphite, the thickness of the heat conducting material layer is between 50 and 500 microns, and the heat conductivity coefficient is between 500 and 700W/(m.K);
the conductive fiber manufacturing layer comprises a fiber manufacturing object and a conductive layer, and the conductive fiber manufacturing layer is formed on the surface of the fiber manufacturing object by any one method of magnetron sputtering, electroplating, chemical plating and coating;
the thickness of the conductive fiber manufacturing object layer is 80-100um, and the constant force elongation of 25N is less than 10%;
preferably, the rolled expanded graphite is obtained by rolling expanded graphite with the purity of 95-99.99%;
preferably, the heat conducting material layer is provided with through holes, and the porosity is 1% -50%;
preferably, the adhesive layer is any one of epoxy resin, acrylic resin, phenolic resin, urea resin, melamine-formaldehyde resin, organic silicon resin, furan resin, unsaturated polyester, acrylic resin, polyimide, polybenzimidazole, phenolic-polyvinyl acetal, phenolic-polyamide, phenolic-epoxy resin or epoxy-polyamide, and the thickness of the adhesive layer is 5-100 um;
preferably, the fiber textile is any one of polyester fiber textile cloth, cotton textile cloth and polyester fiber and cotton blended cloth;
preferably, the conductive layer can be a metal such as copper, iron, nickel, aluminum, gold, silver, titanium, or an alloy thereof, and can also be a simple substance or a compound of carbon;
preferably, the conductive fiber manufacturing layer is provided with through holes, and the porosity is 1% -50%.
Example 2
As shown in fig. 2, a flexible bending-resistant high-heat-dissipation composite fabric comprises a heat-conductive material layer (21), an adhesive layer (22) and a conductive fiber manufacturing layer (23);
the surfaces of the two sides of the heat conducting material layer (21) are respectively bonded with the conductive fiber manufacturing layer (23) through a layer of adhesive layer (22);
the heat conducting material layer is two layers of artificial graphite, the total thickness of the heat conducting material layer is between 100 and 200 mu m, and the heat conducting coefficient is between 700 and 1400W/(m.K);
the conductive fiber manufacturing layer comprises a fiber manufacturing object and a conductive layer, and the conductive fiber manufacturing layer is formed on the surface of the fiber manufacturing object by any one method of magnetron sputtering, electroplating, chemical plating and coating;
the thickness of the conductive fiber manufactured product layer is 80-100um, and the constant force elongation of 25N is less than 10%;
preferably, the artificially synthesized graphite is a graphite sheet prepared by carbonizing and graphitizing polyimide (PI film);
preferably, the layers of the heat conducting material layer are connected through an adhesive layer;
preferably, the heat conducting material layer is provided with through holes, and the porosity is 1% -50%;
preferably, the adhesive layer is any one of epoxy resin, acrylic resin, phenolic resin, urea resin, melamine-formaldehyde resin, organic silicon resin, furan resin, unsaturated polyester, acrylic resin, polyimide, polybenzimidazole, phenolic-polyvinyl acetal, phenolic-polyamide, phenolic-epoxy resin or epoxy-polyamide, and the thickness of the adhesive layer is 5-100 um;
preferably, the fiber textile is any one of polyester fiber textile cloth, cotton textile cloth and polyester fiber and cotton blended cloth;
preferably, the conductive layer can be a metal such as copper, iron, nickel, aluminum, gold, silver, titanium, or an alloy thereof, and can also be a simple substance or a compound of carbon;
preferably, the conductive fiber manufacturing layer is provided with through holes, and the porosity is 1% -50%.
Example 3
As shown in fig. 3, a flexible bending-resistant high-heat-dissipation composite fabric comprises a heat-conductive material layer, an adhesive layer (32) and a conductive fiber manufacturing layer (33);
the surfaces of the two sides of the heat conducting material layer are respectively bonded with the conductive fiber manufacturing layer (33) through a layer of adhesive layer (32);
the heat conducting material layer is composed of two layers of artificial graphite (31) and a metal layer (34), the total thickness of the heat conducting material layer is between 100 and 200 mu m, and the heat conductivity coefficient is between 700 and 1400W/(m.K); wherein the metal foil is copper foil or aluminum foil, and the thickness of the metal foil is 10um-20 um;
the conductive fiber manufacturing layer comprises a fiber manufacturing object and a conductive layer, and the conductive fiber manufacturing layer is formed on the surface of the fiber manufacturing object by any one method of magnetron sputtering, electroplating, chemical plating and coating;
the thickness of the conductive fiber manufactured product layer is 80-100um, and the constant force elongation of 25N is less than 10%;
preferably, the artificially synthesized graphite is a graphite sheet prepared by carbonizing and graphitizing polyimide (PI film);
preferably, the layers of the heat conducting material layer are connected through an adhesive layer;
preferably, the heat conducting material layer is provided with through holes, and the porosity is 1% -50%;
preferably, the adhesive layer is any one of epoxy resin, acrylic resin, phenolic resin, urea resin, melamine-formaldehyde resin, organic silicon resin, furan resin, unsaturated polyester, acrylic resin, polyimide, polybenzimidazole, phenolic-polyvinyl acetal, phenolic-polyamide, phenolic-epoxy resin or epoxy-polyamide, and the thickness of the adhesive layer is 5-100 um;
preferably, the fiber textile is any one of polyester fiber textile cloth, cotton textile cloth and polyester fiber and cotton blended cloth;
preferably, the conductive layer can be a metal such as copper, iron, nickel, aluminum, gold, silver, titanium, or an alloy thereof, and can also be a simple substance or a compound of carbon;
preferably, the conductive fiber manufacturing layer is provided with through holes, and the porosity is 1% -50%.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims (9)

1. A flexible bending-resistant high-heat-dissipation composite fabric is characterized by comprising a heat-conducting material layer, an adhesive layer and a conductive fiber manufacturing layer;
the heat conducting material layer is adhered to the surface of one side of the conductive fiber manufacturing material layer through an adhesive layer, or the surfaces of the two sides of the heat conducting material layer are respectively adhered to the conductive fiber manufacturing material layer through an adhesive layer;
the total thickness of the heat conducting material layer is between 50 and 500 mu m, and the heat conductivity coefficient is between 300-1600W/(m.K);
the heat conducting material layer is any one of the following materials: not more than four layers of rolled expanded graphite, or not more than four layers of artificially synthesized graphite, or a composite material with not more than four layers of metal foil, rolled expanded graphite and artificially synthesized graphite; wherein the metal foil is copper foil or aluminum foil, and the thickness of the metal foil is 4-50 μm;
the conductive fiber manufacturing layer comprises a fiber manufacturing object and a conductive layer, and the conductive fiber manufacturing layer is formed on the surface of the fiber manufacturing object by any one method of magnetron sputtering, electroplating, chemical plating and coating;
the fibrous product layer comprises a woven fabric and a nonwoven fabric;
the thickness of the conductive fiber manufactured product layer is 5-300 mu m, and the constant force elongation measured by adopting a constant force value of 25N is less than 10%.
2. The flexible bending-resistant high-heat-dissipation composite fabric as claimed in claim 1, wherein the rolled expanded graphite is obtained by rolling expanded graphite with a purity of 90% -99.99%, a thermal conductivity of 300-700W/(m.K), and a thickness of 50-500 μm.
3. The flexible bending-resistant high-heat-dissipation composite fabric as claimed in claim 1, wherein the synthetic graphite is a graphite sheet prepared by carbonizing and graphitizing polyimide (PI film), and has a thermal conductivity of 700-1600W/(m.K) and a thickness of 20-100 μm.
4. The flexible bending-resistant high-heat-dissipation composite fabric as claimed in claim 1, wherein the heat-conductive material layer is provided with through holes, and the porosity is 1% -50%.
5. The flexible bending-resistant high-heat-dissipation composite fabric as claimed in claim 1, wherein when the heat-conductive material layer is composed of more than two layers, the layers are connected through an adhesive layer.
6. The flexible bending-resistant high-heat-dissipation composite fabric according to claim 1, wherein the adhesive layer is any one of epoxy resin, acrylic resin, phenolic resin, urea resin, melamine-formaldehyde resin, silicone resin, furan resin, unsaturated polyester, acrylic resin, polyimide, polybenzimidazole, phenolic-polyvinyl acetal, phenolic-polyamide, phenolic-epoxy resin or epoxy-polyamide, and the thickness of the adhesive layer is 5 μm to 100 μm.
7. The flexible bending-resistant high-heat-dissipation composite fabric as claimed in claim 1, wherein the fiber textile fabric is any one of polyester fiber textile fabric, cotton textile fabric and blended fabric of polyester fiber and cotton.
8. The flexible bending-resistant high-heat-dissipation composite fabric as claimed in claim 1, wherein the conductive layer is a metal such as copper, iron, nickel, aluminum, gold, silver, titanium, or an alloy thereof, or is a simple substance or a compound of carbon.
9. The flexible bending-resistant high-heat-dissipation composite fabric as claimed in claim 1, wherein the conductive fiber product layer is provided with through holes, and the porosity is 1% -50%.
CN202210644269.8A 2022-06-09 2022-06-09 Flexible bending-resistant high-heat-dissipation composite fabric Pending CN114953615A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210644269.8A CN114953615A (en) 2022-06-09 2022-06-09 Flexible bending-resistant high-heat-dissipation composite fabric

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210644269.8A CN114953615A (en) 2022-06-09 2022-06-09 Flexible bending-resistant high-heat-dissipation composite fabric

Publications (1)

Publication Number Publication Date
CN114953615A true CN114953615A (en) 2022-08-30

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Family Applications (1)

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Country Status (1)

Country Link
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