WO2024026930A1 - Matériau composite fibreux, procédé de préparation associé et utilisation associée - Google Patents

Matériau composite fibreux, procédé de préparation associé et utilisation associée Download PDF

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Publication number
WO2024026930A1
WO2024026930A1 PCT/CN2022/112887 CN2022112887W WO2024026930A1 WO 2024026930 A1 WO2024026930 A1 WO 2024026930A1 CN 2022112887 W CN2022112887 W CN 2022112887W WO 2024026930 A1 WO2024026930 A1 WO 2024026930A1
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WIPO (PCT)
Prior art keywords
fiber
heat
layer
liquid
needle
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PCT/CN2022/112887
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English (en)
Chinese (zh)
Inventor
李鑫
冯大利
周宇
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深圳麦克韦尔科技有限公司
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Priority claimed from CN202210927172.8A external-priority patent/CN115233374B/zh
Application filed by 深圳麦克韦尔科技有限公司 filed Critical 深圳麦克韦尔科技有限公司
Publication of WO2024026930A1 publication Critical patent/WO2024026930A1/fr

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    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/42—Cartridges or containers for inhalable precursors
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/44—Wicks
    • 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
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres

Definitions

  • This application relates to the technical field of electronic cigarette oil-conducting materials, and specifically relates to a fiber composite material and its preparation method and application.
  • the aerosol generating device of the atomizing core material commonly used in e-cigarettes currently on the market mainly consists of an atomizing core and an e-liquid tank, of which the atomizing core is the core part of the aerosol generating device.
  • the atomization core is composed of a porous material and a heating element.
  • the porous material plays the role of supplying e-liquid to the heating element, which is important for the e-cigarette's smoke volume, smoke particle size, spice and nicotine transmission efficiency and other properties. Influence.
  • oil-conducting materials used in atomizer cores one is cotton core represented by natural cotton and synthetic fibers, and the other is porous oil-conducting ceramics.
  • the purpose of this application is to overcome the shortcomings of existing fiber composite materials with limited oil conductivity and inability to effectively meet actual needs, and to provide a fiber composite material and its preparation method and application.
  • a fiber composite material includes a heat-resistant layer and a liquid-conducting layer arranged in a stack;
  • the material of the heat-resistant layer includes heat-resistant fiber and hydrophilic fiber
  • the material of the liquid-conducting layer includes hydrophilic fiber
  • the heat-resistant fiber includes polyimide fiber
  • the hydrophilic fiber includes Tencel fiber. It can be understood that the material of the heat-resistant layer includes polyimide fiber and Tencel fiber, and the material of the liquid-conducting layer includes Tencel fiber.
  • the weight proportion of heat-resistant fibers is 20%-80%, and the weight proportion of hydrophilic fibers is 20%-80%.
  • the heat-resistant fiber also includes polyphenylene sulfide fiber, aramid fiber, polytetrafluoroethylene fiber, carbon fiber, metal fiber, poly-p-phenylene benzobisoxazole fiber (PBO), polymethylene fiber. At least one of phenylbenzodiimidazole fibers (PBI);
  • the hydrophilic fiber also includes at least one of cotton fiber, flax fiber, hemp fiber, modal fiber, cupro fiber, bamboo fiber, seaweed fiber, chitosan fiber, and carboxymethyl cellulose fiber.
  • the heat-resistant fiber also includes polyphenylene sulfide fiber, aramid fiber, polytetrafluoroethylene fiber, carbon fiber, metal fiber, polyparaphenylenebenzobisoxazole fiber (PBO), polym-phenylenebenzobis
  • PBI polyparaphenylenebenzobisoxazole fiber
  • this application does not specifically limit the ratio between polyimide fiber and the above materials.
  • the mass ratio between the two can be (1-10) :1.
  • the hydrophilic fiber also includes at least one of cotton fiber, flax fiber, hemp fiber, modal fiber, cupro fiber, bamboo fiber, seaweed fiber, chitosan fiber, and carboxymethyl cellulose fiber
  • this application does not apply
  • the ratio between Tencel fiber and the above materials is specifically limited.
  • the mass ratio between the two can be (1-10):1.
  • the material of the heat-resistant layer and/or liquid-conducting layer also includes high-resilience fibers.
  • the high-resilience fibers include hollow polyester fibers.
  • the hollow polyester fibers It is three-dimensional curled hollow polyester fiber.
  • the heat-resistant fibers, hydrophilic fibers and high-resilience fibers mentioned above in this application are all existing conventional fiber materials and are commercially available.
  • polyimide fiber abbreviated as PI fiber, also known as aramid fiber, is a commonly available fiber material in this field.
  • the weight proportion of heat-resistant fibers is 19.9%-80%, the weight proportion of hydrophilic fibers is 19.9%-80%, and the weight proportion of high-resilience fibers is Ratio is 0.1%-20%;
  • the weight proportion of hydrophilic fibers is 50%-99.9%, and the weight proportion of high-resilience fibers is 0.1%-50%.
  • the weight proportion of heat-resistant fiber is 20%-60%
  • the weight proportion of hydrophilic fiber is 20%-60%
  • the weight proportion of high-resilience fiber is 20%-60%.
  • the weight proportion of hydrophilic fibers is 80%-90%
  • the weight proportion of high-resilience fibers is 10%-20%.
  • the heat-resistant layer has a porosity of 70%-98%, and the liquid-conducting layer has a porosity of 50%-82%.
  • the thickness of the heat-resistant layer accounts for 30%-60% of the total thickness of the heat-resistant layer and the liquid-conducting layer;
  • the weight of the heat-resistant layer accounts for 30%-60% of the total weight of the heat-resistant layer and the liquid conductive layer.
  • the total thickness of the heat-resistant layer and the liquid-conducting layer is 0.9mm-1.8mm, and the total weight of the heat-resistant layer and the liquid-conducting layer is 180g/m 2 -300g/m 2 .
  • the length of the heat-resistant fiber is 38mm-60mm
  • the fineness is 0.8D-7.0D
  • the length of the hydrophilic fiber is 28mm-60mm
  • the fineness is 0.9D-2.5D
  • the high resilience fiber The length is 38mm-60mm
  • the fineness is 3D-10D.
  • the unit of fineness D is Daniel.
  • the cross-sectional shape of the heat-resistant fiber or hydrophilic fiber will be a special-shaped cross-section, such as trilobal, cross-shaped, etc., to increase the liquid conductivity of the fiber itself.
  • the unit of fineness is denier, referred to as denier (D), and its value is a unit of textile fiber thickness.
  • the length of the heat-resistant fiber is 50mm-60mm and the fineness is 0.8D-1D.
  • the length of the hydrophilic fiber is 50mm-60mm and the fineness is 0.9D-1.0D. This application controls the above-mentioned heat resistance.
  • the length and fineness of the fiber and hydrophilic fiber can ensure that the composite material can improve the oil conductivity while improving the material's oil storage and oil locking properties.
  • the fiber composite material has an average pore diameter of 40-70 ⁇ m and a porosity of 60-90%.
  • This application also provides a method for preparing the above-mentioned fiber composite material, which adopts a needle punching process to prepare the fiber composite material.
  • the heat-resistant layer material is opened, mixed and carded to obtain a single-layer fiber mesh thin layer material, and then several single-layer fiber mesh thin-layer materials are laid together to form a fiber mesh material, and then the fiber mesh material is Needle punching, entanglement and shaping to obtain a heat-resistant layer semi-made into a fiber mesh;
  • liquid-conducting layer material is opened, mixed and carded to obtain a single-layer fiber mesh thin layer material, and then several single-layer fiber mesh thin-layer materials are laid together to form a fiber mesh material, and then the fiber mesh material is After needle punching and entangling, the liquid-conducting layer is semi-made into a fiber mesh;
  • the heat-resistant layer is semi-formed into a fiber mesh and the liquid-conducting layer is semi-formed into a fiber mesh and are combined together by needling, and then hot-rolled to obtain the fiber composite material.
  • the weight of the single-layer fiber mesh thin layer material in step 1) is 5-20g/ m2 , and the thickness of the fiber mesh material is 4-15cm.
  • the acupuncture entanglement and shaping step includes sequentially performing The pre-acupuncture process and the barb process are optional.
  • the needle density of the needle plate is 2000-4000 pieces/meter, the acupuncture frequency is 350-450 pricks/minute, and the acupuncture depth is 1.5- 2.0mm; in the barb process, the needle density of the needle plate is 3000-5000 pieces/meter, the acupuncture frequency is 390-500 piercings/minute, and the acupuncture depth is 1.9-2.5mm; further optionally, the pre-needle punching
  • the needle density of the needle board is 3500 needles/meter
  • the needle punching frequency is 400 needles/minute
  • the needle punching depth is 1.5-2.0mm
  • the needle density of the needle board is 4000 needles/meter, and the needle punching frequency is 440 piercings/minute, acupuncture depth 1.9-2.5mm.
  • the weight of the single-layer fiber mesh thin layer material in step 2) is 10-30g/m 2 , and the thickness of the fiber mesh material is 11-16cm.
  • the needle punching and entangling shaping step includes sequentially performing the fiber mesh material Pre-acupuncture process and barb process are optional.
  • the needle density of the needle plate is 2000-4000 pieces/meter, the acupuncture frequency is 400-500 pricks/minute, and the acupuncture depth is 2.0- 2.5mm; in the barb process, the needle density of the needle plate is 3000-5000 pieces/meter, the acupuncture frequency is 450-550 piercings/minute, and the acupuncture depth is 2.5-3.0mm; further optionally, the pre-needle punching
  • the needle density of the needle board is 3500 needles/meter
  • the needle punching frequency is 450 needles/minute
  • the needle punching depth is 2.0-2.5mm
  • the needle density of the needle board is 4000 needles/meter, and the needle punching frequency is 500 piercings/minute, acupuncture depth 2.5-3.0mm.
  • the acupuncture step described in step 3) includes a forward pricking step and a barb pricking step.
  • the needle density of the needle plate is 10,000-15,000 pieces/meter, and the acupuncture frequency is 1,000-1,400 pricks/minute.
  • the acupuncture depth is 1.0-2.0mm; the needle density of the needle plate in the barb process is 12000-16000 pieces/meter, the acupuncture frequency is 1000-1400 piercings/minute, the acupuncture depth is 0.9-2.5mm, further optional , the needle density on the needle plate is 12,000 needles/meter, the needle punching frequency is 1,200 needles/minute, and the needle penetration depth is 1.0-1.5mm in the forward needling step; the needle density on the needle plate is 14,000 needles/meter, The puncture frequency is 1300 punctures/minute, and the puncture depth is 0.9-1.6mm.
  • the heat-resistant layer material is placed according to the side that contacts the needle first.
  • the hot rolling is carried out by a three-roller ironing machine, the vehicle speed is controlled to 20-50 meters/minute, the roller spacing is 0.9-1.8mm, and the hot rolling temperature is 160-180°C.
  • the present application also provides a liquid-conducting element, and the material of the liquid-conducting element is the fiber composite material described above or the fiber composite material prepared by the preparation method described above.
  • This application also provides a heating component, including the above-mentioned fiber composite material and a heating element in contact with the heat-resistant layer.
  • This application also provides an atomizer, the atomization device having the above-mentioned heating component.
  • This application also provides an electronic atomization device, including the above-mentioned atomizer.
  • the fiber composite material provided by this application has a heat-resistant layer and a liquid-conducting layer formed by lamination.
  • the heat-resistant layer is made of polyimide fiber and Tencel fiber.
  • Polyimide fiber has low thermal conductivity. , which is conducive to the dissipation of heat during the atomization process of the heating wire, and the viscosity of the e-liquid will decrease at higher temperatures, which is beneficial to the flow performance of the Tencel fiber to absorb the e-liquid, making the distribution of the e-liquid in the composite material more uniform, and at the same time guiding
  • the liquid layer material uses Tencel fiber to fully supply the e-liquid on the surface of the polyimide fiber, which is conducive to improving the oil storage and oil locking performance of the entire composite material.
  • This application uses specific polyimide fibers in the heat-resistant layer. and Tencel fiber, combined with the Tencel fiber in the liquid-conducting layer, can greatly improve the oil-conducting performance of the composite material. At the same time, the obtained composite material also has similar or even higher oil storage and oil-locking performance than existing oil-conducting materials. .
  • polyimide fiber has very excellent heat resistance and will not change its physical properties during long-term high-temperature use.
  • the skeleton material of the heat-resistant layer it can better maintain the dimensional stability of the material.
  • Tencel fiber has better liquid absorption and liquid locking properties than cotton fiber, ensuring that the heat-resistant layer has sufficient oil storage capacity to prevent dry burning (800°C-1000°C) or even burning due to insufficient liquid supply.
  • the specific heat-resistant layer material and liquid-conducting layer material can ensure that even in continuous use, there is a sufficient supply of e-liquid, and the liquid-conducting, liquid storage, and liquid-locking performance will not decrease significantly, maintaining a longer taste consistency.
  • the composite material obtained has excellent heat resistance and service life, as well as better resistance to smoke oil erosion. It rarely degrades and forms harmful oligomers after long-term use, reducing odor.
  • the materials of the heat-resistant layer and/or the liquid-conducting layer described in this application also include high-resilience fibers, which have very obvious elastic recovery and can ensure no problem during the acupuncture process even when immersed in high-viscosity e-liquid.
  • the high porosity structure of the woven fabric ensures that the oil conduction, oil storage and oil locking properties of the composite material will not be reduced or even improved during use.
  • the heat-resistant fibers described in this application also include polyphenylene sulfide fiber, aramid fiber, polytetrafluoroethylene fiber, carbon fiber, metal fiber, poly-p-phenylene benzobisoxazole fiber, and poly-m-phenylene benzene At least one of diimidazole fibers;
  • the hydrophilic fiber also includes cotton fiber, flax fiber, hemp fiber, modal fiber, cupro fiber, bamboo fiber, seaweed fiber, chitosan fiber, carboxymethyl cellulose At least one of the fibers.
  • this application will help improve the oil conductivity performance of the composite material, and at the same time ensure that the composite material has similar or even higher oil storage and oil locking properties to existing oil conduction materials, and can meet the performance requirements of different products.
  • the introduction of metal fiber or carbon fiber can help improve the atomization efficiency of the overall e-liquid, and it also has the oil storage, oil locking, and oil conduction properties required by ordinary cotton materials; the introduction of seaweed fiber, chitosan fiber, and carboxymethyl cellulose Fiber helps improve the leakage performance of the product.
  • Figure 1 is a scanning electron microscope image of the overall cross-section of the fiber composite material prepared in Example 1.
  • Figure 2 is the heat resistance test result of the polyimide fiber used in Example 1 of the present application.
  • Figure 3 is the heat resistance test results of commercially available cotton fibers.
  • Figure 4 is the oil conductivity test result of the fiber composite material prepared in Example 1.
  • Figure 5 is an appearance photo of the fiber composite material prepared in Example 1.
  • the fibers described in the following examples or comparative examples of this application have their fineness and length marked in brackets.
  • the polyimide fiber (2.0D ⁇ 51mm) refers to The polyimide fiber has a fineness of 2.0D and a length of 51mm.
  • the thickness and weight of the fiber composite materials involved in the following examples are prepared by the following methods:
  • Thickness The thickness of the fiber composite material was measured using a micrometer thickness gauge (BK-3281, measuring diameter 10 mm). The measurement area was 3m ⁇ 0.5m. 20 points were measured in the width direction of the fiber composite material and the average value was obtained.
  • Gram weight test Randomly sample 10 pieces from a 3m ⁇ 0.5m fiber composite material, cut them into 100cm2 circles, weigh them, and calculate the average value.
  • This embodiment provides a fiber composite material, and its preparation method includes the following steps:
  • the needle density of the needle plate is 3500 pieces/meter
  • the needling frequency is 400 punches/minute
  • the needling depth is 1.7mm
  • the needle density of the needle board is 4000 needles/meter
  • the needle punching frequency is 440 punches/minute
  • the needle punching depth is 2.1mm
  • the heat-resistant layer is semi-made into a fiber mesh
  • the needle density of the needle plate in the pre-needle punching process is 3500 needles/meter, the needle punching frequency is 450 needles/minute, and the needle punching depth is 2.2mm; the needle density of the needle plate in the barb process is 4000 needles/meter, and the needle punching
  • the frequency is 500 punctures/minute, the depth of acupuncture is 2.7mm, and the liquid-conducting layer is semi-made into a fiber mesh;
  • the heat-resistant layer is semi-formed into a fiber mesh and the liquid-conducting layer is semi-formed into a fiber mesh and sent to the forward acupuncture machine through double channels for repeated acupuncture, and then through the inverted acupuncture machine for acupuncture to allow the two to pass through the fiber
  • the needles are cross-tangled and fixed together.
  • the needle density of the needle plate is 12000 pieces/meter, the needle punching frequency is 1200 punches/minute, and the needle punching depth is 1.3mm; in the barb punching step, the needle density of the needle plate is 14,000 pieces/meter, acupuncture frequency is 1,300 pricks/minute, acupuncture depth is 1.3mm, and then hot-rolled through a three-roller hot-rolling machine.
  • the control speed is 20 meters/minute, the roller spacing is 1.3mm, and the hot-rolling temperature is 180°C, and after hot rolling, it is wound to form a coil to obtain the fiber composite material.
  • the fiber composite material prepared above includes a heat-resistant layer and a liquid-conducting layer arranged in a stack; the material of the heat-resistant layer is polyimide fiber and Tencel fiber, and the material of the liquid-conducting layer is Tencel fiber, Based on the total weight of the heat-resistant layer material, the weight proportion of polyimide fiber is 40%, the weight proportion of Tencel fiber is 60%, the porosity of the heat-resistant layer is 78%, and the liquid-conducting layer The porosity is 60%, the thickness of the heat-resistant layer accounts for 45% of the total thickness of the heat-resistant layer and the liquid-conducting layer, and the weight of the heat-resistant layer accounts for 45% of the total weight of the heat-resistant layer and the liquid-conducting layer. , the total thickness of the heat-resistant layer and the liquid-conducting layer is 1.5mm, and the total weight of the heat-resistant layer and the liquid-conducting layer is 250g/m 2 .
  • Figure 1 is a scanning electron microscope image of the overall cross-section of the fiber composite material prepared in Example 1.
  • the upper layer is a relatively loose and porous heat-resistant layer structure
  • the lower layer is a relatively tight liquid-conducting layer.
  • Figure 5 is a photo of the appearance of the fiber composite material prepared above. Its structure can be divided into two layers.
  • the upper layer is a heat-resistant layer (a mixture of polyimide fiber and Tencel), and the other layer is a liquid-conducting layer ( Tencel fiber).
  • Figure 2 shows the heat resistance test results of the polyimide fiber raw materials used above.
  • Figure 3 is the heat resistance test results of commercially available cotton fibers. It can be seen from Figures 2 and 3 that the heat resistance of polyimide fiber is better than that of cotton fiber. Applying polyimide fiber to the heat-resistant layer of the present application is more conducive to improving the heat resistance of the composite material.
  • Figure 4 shows the oil conductivity test results of the fiber composite materials prepared in this embodiment.
  • the test process was divided into four parallel test samples, namely Example 1-1, Example 1-2, and Example 1-3. , Examples 1-4, the test results are shown in Figure 4.
  • This embodiment provides a fiber composite material, and its preparation method includes the following steps:
  • the needle density of the needle plate is 3500 pieces/meter, the needling frequency is 350 punches/minute, and the needling depth is 1.5mm; the barb process The needle density of the middle needle board is 4000 needles/meter, the needle punching frequency is 390 punches/minute, and the needle punching depth is 1.9mm, and the heat-resistant layer is semi-made into a fiber mesh;
  • the needle density of the needle plate in the pre-needle punching process is 3500 needles/meter, the needle punching frequency is 400 needles/minute, and the needle punching depth is 2.0mm; the needle density of the needle plate in the barb process is 4000 needles/meter, and the needle punching The frequency is 450 punctures/minute, the depth of acupuncture is 2.5mm, and the liquid-conducting layer is semi-made into a fiber mesh;
  • the heat-resistant layer is semi-formed into a fiber mesh and the liquid-conducting layer is semi-formed into a fiber mesh and sent to the forward acupuncture machine through double channels for repeated acupuncture, and then through the inverted acupuncture machine for acupuncture to allow the two to pass through the fiber
  • the needles are cross-tangled and fixed together.
  • the needle density of the needle plate is 12000 pieces/meter
  • the needle punching frequency is 1200 punches/minute
  • the needle punching depth is 1.5mm
  • the needle density of the needle plate is 14000 pieces/meter
  • acupuncture frequency is 1300 pricks/minute
  • acupuncture depth is 1.6mm
  • the control speed is 20 meters/minute
  • the roller spacing is 0.9mm
  • the hot-rolling temperature is 180°C, and after hot rolling, it is wound to form a coil to obtain the fiber composite material.
  • the fiber composite material prepared above includes a heat-resistant layer and a liquid-conducting layer arranged in a stack; the material of the heat-resistant layer is polyimide fiber and Tencel fiber, and the material of the liquid-conducting layer is Tencel fiber, Based on the total weight of the heat-resistant layer material, the weight proportion of polyimide fiber is 80%, the weight proportion of Tencel fiber is 20%, the porosity of the heat-resistant layer is 71%, and the liquid-conducting layer The porosity is 50%, the thickness of the heat-resistant layer accounts for 30% of the total thickness of the heat-resistant layer and the liquid-conducting layer, and the weight of the heat-resistant layer accounts for 30% of the total weight of the heat-resistant layer and the liquid-conducting layer. , the total thickness of the heat-resistant layer and the liquid-conducting layer is 0.9mm, and the total weight of the heat-resistant layer and the liquid-conducting layer is 180g/m 2 .
  • This embodiment provides a fiber composite material, and its preparation method includes the following steps:
  • the needle density of the needle plate is 3500 pieces/meter, the needling frequency is 450 punches/minute, and the needling depth is 2.0mm; in the barb process
  • the needle density of the needle board is 4000 needles/meter, the needle punching frequency is 490 punches/minute, the needle punching depth is 2.4mm, and the heat-resistant layer is semi-made into a fiber mesh;
  • the needle density of the needle plate in the pre-needle punching process is 3500 needles/meter, the needle punching frequency is 500 needles/minute, and the needle punching depth is 2.5mm; the needle density of the needle plate in the barb process is 4000 needles/meter, and the needle punching The frequency is 450 punctures/minute, the depth of acupuncture is 3.0mm, and the liquid-conducting layer is semi-made into a fiber mesh;
  • the heat-resistant layer is semi-formed into a fiber mesh and the liquid-conducting layer is semi-formed into a fiber mesh and sent to the forward acupuncture machine through double channels for repeated acupuncture, and then through the inverted acupuncture machine for acupuncture to allow the two to pass through the fiber
  • the needles are cross-tangled and fixed together.
  • the needle density of the needle plate is 12000 pieces/meter
  • the needle punching frequency is 1200 punches/minute
  • the needle punching depth is 2.0mm
  • the needle density of the needle plate is 14,000 pieces/meter
  • acupuncture frequency is 1,300 pricks/minute
  • acupuncture depth is 2.5mm
  • the control speed is 20 meters/minute
  • the roller spacing is 1.8mm
  • the hot-rolling temperature is 180°C, and after hot rolling, it is wound to form a coil to obtain the fiber composite material.
  • the fiber composite material prepared above includes a heat-resistant layer and a liquid-conducting layer arranged in a stack; the material of the heat-resistant layer is polyimide fiber and Tencel fiber, and the material of the liquid-conducting layer is Tencel fiber, Based on the total weight of the heat-resistant layer material, the weight proportion of polyimide fiber is 20%, the weight proportion of Tencel fiber is 80%, the porosity of the heat-resistant layer is 78%, and the liquid-conducting layer The porosity is 61%, the thickness of the heat-resistant layer accounts for 50% of the total thickness of the heat-resistant layer and the liquid-conducting layer, and the weight of the heat-resistant layer accounts for 50% of the total weight of the heat-resistant layer and the liquid-conducting layer , the total thickness of the heat-resistant layer and the liquid-conducting layer is 1.8mm, and the total weight of the heat-resistant layer and the liquid-conducting layer is 300g/m 2 .
  • This embodiment provides a fiber composite material, and its preparation method includes the following steps:
  • the initially opened fibers are sent to the mixing bin for mixing, and then the fibers are carded into 10g/ m2 single-layer fiber mesh thin-layer material, and then lay several single-layer fiber mesh thin-layer materials together to form a fiber mesh material (the thickness of the fiber mesh material is 10cm), and then feed the fiber mesh materials in sequence
  • the pre-needle punching machine and the back-needle punching machine perform pre-needle punching and back-needle punching to tangle and shape the fiber web material.
  • the needle density of the needle plate is 3500 pieces/meter
  • the needle punching frequency is 400 punches/meter.
  • the needling depth is 2.0mm; in the barb process, the needle density of the needle plate is 4000 needles/meter, the needling frequency is 440 punches/minute, the needling depth is 2.4mm, and the heat-resistant layer is semi-made into a fiber mesh;
  • the fiber mesh material is 15cm
  • the fiber mesh materials are sent to the pre-needle punching machine and the back needling machine in sequence for pre-needle punching and Back needling is used to tangle and shape the fiber web material.
  • the needle density of the needle plate is 3500 pieces/meter
  • the needling frequency is 450 punches/minute
  • the needling depth is 2.5mm
  • the cloth needle density is 4000 needles/meter
  • the needle punching frequency is 500 needles/minute
  • the needle punching depth is 3.0mm
  • the liquid-conducting layer is semi-made into a fiber mesh
  • the heat-resistant layer is semi-formed into a fiber mesh and the liquid-conducting layer is semi-formed into a fiber mesh and sent to the forward acupuncture machine through double channels for repeated acupuncture, and then through the inverted acupuncture machine for acupuncture to allow the two to pass through the fiber
  • the needles are cross-tangled and fixed together.
  • the needle density of the needle plate is 12000 pieces/meter, the needle punching frequency is 1200 punches/minute, and the needle punching depth is 1.3mm; in the barb punching step, the needle density of the needle plate is 14,000 pieces/meter, acupuncture frequency is 1,300 pricks/minute, acupuncture depth is 1.3mm, and then hot-rolled through a three-roller hot-rolling machine.
  • the control speed is 20 meters/minute, the roller spacing is 1.3mm, and the hot-rolling temperature is 180°C, and after hot rolling, it is wound to form a coil to obtain the fiber composite material.
  • the fiber composite material prepared above includes a heat-resistant layer and a liquid-conducting layer arranged in a stack; the material of the heat-resistant layer is polyimide fiber, Tencel fiber and three-dimensional crimped hollow polyester fiber, and the liquid-conducting layer is The materials are Tencel fiber and three-dimensional curly hollow polyester fiber. Based on the total weight of the heat-resistant layer material, the weight proportion of polyimide fiber is 30%, the weight proportion of Tencel fiber is 60%, and the three-dimensional curly hollow fiber is The weight proportion of polyester fiber is 10%. Based on the total weight of the liquid-conducting layer material, the weight proportion of Tencel fiber is 90%. The weight proportion of three-dimensional crimped hollow polyester fiber is 10%.
  • the heat-resistant layer The porosity of the liquid-conducting layer is 85%, the porosity of the liquid-conducting layer is 65%, the thickness of the heat-resistant layer accounts for 45% of the total thickness of the heat-resistant layer and the liquid-conducting layer, and the weight of the heat-resistant layer accounts for 45% of the total thickness of the heat-resistant layer. and 45% of the total weight of the liquid-conducting layer, the total thickness of the heat-resistant layer and the liquid-conducting layer is 1.5mm, and the total weight of the heat-resistant layer and the liquid-conducting layer is 250g/m 2 .
  • This embodiment provides a fiber composite material, and its preparation method includes the following steps:
  • the initially opened fibers are sent to the mixing bin for mixing, and then the fibers are carded into 10g/ m2 single layer fiber mesh thin layer material, and then lay several single layer fiber mesh thin layer materials together to form fiber mesh material (the thickness of fiber mesh material is 12cm), and then feed the fiber mesh material in sequence
  • the pre-needle punching machine and the back-needle punching machine perform pre-needle punching and back-needle punching to tangle and shape the fiber web material.
  • the needle density of the needle plate is 3500 pieces/meter
  • the needle punching frequency is 400 punches/meter.
  • the needling depth is 1.7mm; in the barb process, the needle density of the needle plate is 4000 needles/meter, the needling frequency is 440 punches/minute, the needling depth is 2.1mm, and the heat-resistant layer is semi-made into a fiber mesh;
  • the fiber mesh material is 15cm
  • the fiber mesh materials are sent to the pre-needle punching machine and the back needling machine in sequence for pre-needle punching and Back needling is used to tangle and shape the fiber web material.
  • the needle density of the needle plate is 3500 pieces/meter
  • the needling frequency is 450 punches/minute
  • the needling depth is 2.2mm
  • the cloth needle density is 4000 needles/meter
  • the needle punching frequency is 500 needles/minute
  • the needle punching depth is 2.7mm
  • the liquid conductive layer is semi-made into a fiber mesh
  • the heat-resistant layer is semi-formed into a fiber mesh and the liquid-conducting layer is semi-formed into a fiber mesh and sent to the forward acupuncture machine through double channels for repeated acupuncture, and then through the inverted acupuncture machine for acupuncture to allow the two to pass through the fiber
  • the needles are cross-tangled and fixed together.
  • the needle density of the needle plate is 12000 pieces/meter, the needle punching frequency is 1200 punches/minute, and the needle punching depth is 1.3mm; in the barb punching step, the needle density of the needle plate is 14,000 pieces/meter, acupuncture frequency is 1,300 pricks/minute, acupuncture depth is 1.3mm, and then hot-rolled through a three-roller hot-rolling machine.
  • the control speed is 20 meters/minute, the roller spacing is 1.3mm, and the hot-rolling temperature is 180°C, and after hot rolling, it is wound to form a coil to obtain the fiber composite material.
  • the fiber composite material prepared above includes a heat-resistant layer and a liquid-conducting layer arranged in a stack; the material of the heat-resistant layer is polyimide fiber, Tencel fiber and three-dimensional crimped hollow polyester fiber, and the liquid-conducting layer is The materials are Tencel fiber and three-dimensional curly hollow polyester fiber. Based on the total weight of the heat-resistant layer material, the weight proportion of polyimide fiber is 30%, the weight proportion of Tencel fiber is 60%, and the three-dimensional curly hollow fiber is The weight proportion of polyester fiber is 10%. Based on the total weight of the liquid-conducting layer material, the weight proportion of Tencel fiber is 90%. The weight proportion of three-dimensional crimped hollow polyester fiber is 10%.
  • the heat-resistant layer The porosity of the liquid-conducting layer is 82%, and the porosity of the liquid-conducting layer is 77%.
  • the thickness of the heat-resistant layer accounts for 40% of the total thickness of the heat-resistant layer and the liquid-conducting layer.
  • the weight of the heat-resistant layer accounts for 40% of the total thickness of the heat-resistant layer. and 40% of the total weight of the liquid-conducting layer, the total thickness of the heat-resistant layer and the liquid-conducting layer is 1.62mm, and the total weight of the heat-resistant layer and the liquid-conducting layer is 250g/m 2 .
  • This embodiment provides a fiber composite material, and its preparation method includes the following steps:
  • the initially opened fibers are sent to the mixing bin for mixing, and then the fibers are carded into 20g/ m2 single-layer fiber mesh thin-layer material, and then lay several single-layer fiber mesh thin-layer materials together to form a fiber mesh material (the thickness of the fiber mesh material is 14cm), and then feed the fiber mesh materials in sequence
  • the pre-needle punching machine and the back-needle punching machine perform pre-needle punching and back-needle punching to entangle and shape the fiber web material.
  • the needle density of the needle plate is 3500 pieces/meter
  • the needle punching frequency is 450 punches/meter.
  • the needling depth is 2.0mm; in the barb process, the needle density of the needle plate is 4000 needles/meter, the needling frequency is 490 punches/minute, the needling depth is 2.4mm, and the heat-resistant layer is semi-made into a fiber mesh;
  • the fiber mesh material is 16cm
  • the fiber mesh materials are sent to the pre-needle punching machine and the back needling machine in sequence for pre-needle punching and Back needling is used to entangle and shape the fiber web material.
  • the needle density of the needle plate is 3500 pieces/meter
  • the needling frequency is 500 punches/minute
  • the needling depth is 2.5mm
  • the cloth needle density is 4000 needles/meter
  • the needle punching frequency is 550 needles/minute
  • the needle punching depth is 3.0mm
  • the liquid-conducting layer is semi-made into a fiber mesh
  • the heat-resistant layer is semi-formed into a fiber mesh and the liquid-conducting layer is semi-formed into a fiber mesh and sent to the forward acupuncture machine through double channels for repeated acupuncture, and then through the inverted acupuncture machine for acupuncture to allow the two to pass through the fiber
  • the needles are cross-tangled and fixed together.
  • the needle density of the needle plate is 12000 pieces/meter
  • the needle punching frequency is 1200 punches/minute
  • the needle punching depth is 2.0mm
  • the needle density of the needle plate is 14,000 pieces/meter
  • acupuncture frequency is 1,300 pricks/minute
  • acupuncture depth is 2.5mm
  • the control speed is 20 meters/minute
  • the roller spacing is 1.8mm
  • the hot-rolling temperature is 180°C, and after hot rolling, it is wound to form a coil to obtain the fiber composite material.
  • the fiber composite material prepared above includes a heat-resistant layer and a liquid-conducting layer arranged in a stack; the material of the heat-resistant layer is polyimide fiber, Tencel fiber and three-dimensional crimped hollow polyester fiber, and the liquid-conducting layer is The materials are Tencel fiber and three-dimensional curly hollow polyester fiber. Based on the total weight of the heat-resistant layer material, the weight proportion of polyimide fiber is 20%, the weight proportion of Tencel fiber is 60%, and the three-dimensional curly hollow The weight proportion of polyester fiber is 20%.
  • the weight proportion of Tencel fiber is 80%
  • the weight proportion of three-dimensional crimped hollow polyester fiber is 20%
  • the heat-resistant layer The porosity of the liquid-conducting layer is 98%, and the porosity of the liquid-conducting layer is 80%.
  • the thickness of the heat-resistant layer accounts for 50% of the total thickness of the heat-resistant layer and the liquid-conducting layer.
  • the weight of the heat-resistant layer accounts for 50% of the total thickness of the heat-resistant layer. and 50% of the total weight of the liquid-conducting layer, the total thickness of the heat-resistant layer and the liquid-conducting layer is 1.8mm, and the total weight of the heat-resistant layer and the liquid-conducting layer is 300g/m 2 .
  • This embodiment provides a fiber composite material, and its preparation method includes the following steps:
  • the initially opened fibers are sent to the mixing bin for mixing, and then the fibers are carded into 10g/ m2 single layer fiber mesh thin layer material, and then lay several single layer fiber mesh thin layer materials together to form fiber mesh material (the thickness of fiber mesh material is 12cm), and then feed the fiber mesh material in sequence
  • the pre-needle punching machine and the back-needle punching machine perform pre-needle punching and back-needle punching to tangle and shape the fiber web material.
  • the needle density of the needle plate is 3500 pieces/meter
  • the needle punching frequency is 400 punches/meter.
  • the needling depth is 1.7mm; in the barb process, the needle density of the needle plate is 4000 needles/meter, the needling frequency is 440 punches/minute, the needling depth is 2.1mm, and the heat-resistant layer is semi-made into a fiber mesh;
  • the fiber mesh material is 15cm
  • the fiber mesh materials are sent to the pre-needle punching machine and the back needling machine in sequence for pre-needle punching and Back needling is used to tangle and shape the fiber web material.
  • the needle density of the needle plate is 3500 pieces/meter
  • the needling frequency is 450 punches/minute
  • the needling depth is 2.2mm
  • the cloth needle density is 4000 needles/meter
  • the needle punching frequency is 500 needles/minute
  • the needle punching depth is 2.7mm
  • the liquid conductive layer is semi-made into a fiber mesh
  • the heat-resistant layer is semi-formed into a fiber mesh and the liquid-conducting layer is semi-formed into a fiber mesh and sent to the forward acupuncture machine through double channels for repeated acupuncture, and then through the inverted acupuncture machine for acupuncture to allow the two to pass through the fiber
  • the needles are cross-tangled and fixed together.
  • the needle density of the needle plate is 12000 pieces/meter, the needle punching frequency is 1200 punches/minute, and the needle punching depth is 1.3mm; in the barb punching step, the needle density of the needle plate is 14000 pieces/meter, the needle punching frequency is 1300 punches/minute, the needle punching depth is 1.3mm, and then hot-rolled through a three-roller hot-rolling machine.
  • the control speed is 20 meters/minute
  • the roller spacing is 1.3mm
  • the hot-rolling temperature is 180°C, and after hot rolling, it is wound to form a coil to obtain the fiber composite material.
  • the fiber composite material prepared above includes a heat-resistant layer and a liquid-conducting layer arranged in a stack; the material of the heat-resistant layer is polyimide fiber, Tencel fiber and three-dimensional crimped hollow polyester fiber, and the liquid-conducting layer is The materials are Tencel fiber and three-dimensional curly hollow polyester fiber. Based on the total weight of the heat-resistant layer material, the weight proportion of polyimide fiber is 20%, the weight proportion of Tencel fiber is 60%, and the three-dimensional curly hollow The weight proportion of polyester fiber is 20%.
  • the weight proportion of Tencel fiber is 80%
  • the weight proportion of three-dimensional crimped hollow polyester fiber is 20%
  • the heat-resistant layer The porosity of the liquid-conducting layer is 81%, and the porosity of the liquid-conducting layer is 81%.
  • the thickness of the heat-resistant layer accounts for 45% of the total thickness of the heat-resistant layer and the liquid-conducting layer.
  • the weight of the heat-resistant layer accounts for 45% of the total thickness of the heat-resistant layer.
  • the total thickness of the heat-resistant layer and the liquid-conducting layer is 1.65mm, and the total weight of the heat-resistant layer and the liquid-conducting layer is 250g/m 2 .
  • This embodiment provides a fiber composite material, and its preparation method includes the following steps:
  • the initially opened fibers are sent to the mixing bin for mixing, and then the fibers are carded into 5g/ m2 single-layer fiber mesh thin-layer material, and then lay several single-layer fiber mesh thin-layer materials together to form a fiber mesh material (the thickness of the fiber mesh material is 6cm), and then feed the fiber mesh materials in sequence
  • the pre-needle punching machine and the back-needle punching machine perform pre-needle punching and back-needle punching to entangle and shape the fiber web material.
  • the needle density of the needle plate is 3500 pieces/meter
  • the needle punching frequency is 350 punches/meter.
  • the needling depth is 1.5mm; in the barb process, the needle density of the needle plate is 4000 needles/meter, the needling frequency is 390 punches/minute, the needling depth is 1.9mm, and the heat-resistant layer is semi-made into a fiber mesh;
  • the fiber mesh material is 13cm
  • the fiber mesh materials are sent to the pre-needle punching machine and the back needling machine in sequence for pre-needle punching and Back needling is used to entangle and shape the fiber web material.
  • the needle density of the needle plate is 3500 pieces/meter
  • the needling frequency is 400 punches/minute
  • the needling depth is 2.0mm
  • the cloth needle density is 4000 needles/meter
  • the needle punching frequency is 450 needles/minute
  • the needle punching depth is 2.5mm
  • the liquid-conducting layer is semi-made into a fiber mesh
  • the heat-resistant layer is semi-formed into a fiber mesh and the liquid-conducting layer is semi-formed into a fiber mesh and sent to the forward acupuncture machine through double channels for repeated acupuncture, and then through the inverted acupuncture machine for acupuncture to allow the two to pass through the fiber
  • the needles are cross-tangled and fixed together.
  • the needle density of the needle plate is 12000 pieces/meter
  • the needle punching frequency is 1200 punches/minute
  • the needle punching depth is 1.5mm
  • the needle density of the needle plate is 14000 pieces/meter
  • acupuncture frequency is 1300 pricks/minute
  • acupuncture depth is 1.6mm
  • the control speed is 20 meters/minute
  • the roller spacing is 0.9mm
  • the hot-rolling temperature is 180°C, and after hot rolling, it is wound to form a coil to obtain the fiber composite material.
  • the fiber composite material prepared above includes a heat-resistant layer and a liquid-conducting layer arranged in a stack; the material of the heat-resistant layer is polyimide fiber, Tencel fiber and three-dimensional crimped hollow polyester fiber, and the liquid-conducting layer is The materials are Tencel fiber and three-dimensional curly hollow polyester fiber. Based on the total weight of the heat-resistant layer material, the weight proportion of polyimide fiber is 75%, the weight proportion of Tencel fiber is 20%, and the three-dimensional curly hollow fiber is The weight proportion of polyester fiber is 5%. Based on the total weight of the liquid-conducting layer material, the weight proportion of Tencel fiber is 95%. The weight proportion of three-dimensional crimped hollow polyester fiber is 5%.
  • the heat-resistant layer The porosity of the liquid-conducting layer is 82%, and the porosity of the liquid-conducting layer is 63%.
  • the thickness of the heat-resistant layer accounts for 30% of the total thickness of the heat-resistant layer and the liquid-conducting layer.
  • the weight of the heat-resistant layer accounts for 30% of the total thickness of the heat-resistant layer. and 50% of the total weight of the liquid-conducting layer, the total thickness of the heat-resistant layer and the liquid-conducting layer is 0.9mm, and the total weight of the heat-resistant layer and the liquid-conducting layer is 180g/m 2 .
  • This embodiment provides a fiber composite material, which differs from Example 1 in that 400 kg of polyimide fiber is replaced with 300 kg of polyimide fiber and 100 kg of polyphenylene sulfide fiber.
  • This embodiment provides a fiber composite material, which differs from Example 1 in that 400 kg of polyimide fiber is replaced with 300 kg of polyimide fiber and 100 kg of poly-p-phenylene benzobisoxazole fiber.
  • This embodiment provides a fiber composite material, which differs from Example 1 in that in step 2), 1000 kg of Tencel fiber is replaced with 800 kg of Tencel fiber and 200 kg of cotton fiber.
  • This embodiment provides a fiber composite material, which differs from Example 1 in that in step 2), 1000 kg of Tencel fiber is replaced with 900 kg of Tencel fiber and 100 kg of flax fiber.
  • This embodiment provides a fiber composite material, and its preparation method includes the following steps:
  • the needle density of the needle plate is 3500 pieces/meter
  • the needling frequency is 400 punches/minute
  • the needling depth is 2.0mm
  • the needle density of the needle board is 4000 needles/meter
  • the needle punching frequency is 440 punches/minute
  • the needle punching depth is 2.4mm
  • the heat-resistant layer is semi-made into a fiber mesh
  • the needle density of the needle plate in the pre-needle punching process is 3500 needles/meter, the needle punching frequency is 450 needles/minute, and the needle punching depth is 2.5mm; the needle density of the needle plate in the barb process is 4000 needles/meter, and the needle punching
  • the frequency is 500 punctures/minute, the depth of acupuncture is 3.0mm, and the liquid-conducting layer is semi-made into a fiber mesh;
  • the heat-resistant layer is semi-formed into a fiber mesh and the liquid-conducting layer is semi-formed into a fiber mesh and sent to the forward acupuncture machine through double channels for repeated acupuncture, and then through the inverted acupuncture machine for acupuncture to allow the two to pass through the fiber
  • the needles are cross-tangled and fixed together.
  • the needle density of the needle plate is 12000 pieces/meter, the needle punching frequency is 1200 punches/minute, and the needle punching depth is 1.3mm; in the barb punching step, the needle density of the needle plate is 14,000 pieces/meter, acupuncture frequency is 1,300 pricks/minute, acupuncture depth is 1.3mm, and then hot-rolled through a three-roller hot-rolling machine.
  • the control speed is 20 meters/minute, the roller spacing is 1.3mm, and the hot-rolling temperature is 180°C, and after hot rolling, it is wound to form a coil to obtain the fiber composite material.
  • the fiber composite material prepared above includes a heat-resistant layer and a liquid-conducting layer arranged in a stack; the material of the heat-resistant layer is polyimide fiber and Tencel fiber, and the material of the liquid-conducting layer is Tencel fiber, Based on the total weight of the heat-resistant layer material, the weight proportion of polyimide fiber is 40%, and the weight proportion of Tencel fiber is 60%.
  • the weight proportion of Tencel fiber is The weight ratio is 100%, the porosity of the heat-resistant layer is 83%, the porosity of the liquid-conducting layer is 73%, and the thickness of the heat-resistant layer accounts for 45% of the total thickness of the heat-resistant layer and the liquid-conducting layer, The weight of the heat-resistant layer accounts for 45% of the total weight of the heat-resistant layer and the liquid-conducting layer.
  • the total thickness of the heat-resistant layer and the liquid-conducting layer is 1.5mm, and the total weight of the heat-resistant layer and the liquid-conducting layer is 250g. /m 2 .
  • This embodiment provides a fiber composite material, and its preparation method includes the following steps:
  • the needle density of the needle plate is 3500 pieces/meter
  • the needling frequency is 400 punches/minute
  • the needling depth is 1.7mm
  • the needle density of the needle board is 4000 needles/meter
  • the needle punching frequency is 440 punches/minute
  • the needle punching depth is 2.1mm
  • the heat-resistant layer is semi-made into a fiber mesh
  • the needle density of the needle plate in the pre-needle punching process is 3500 needles/meter, the needle punching frequency is 450 needles/minute, and the needle punching depth is 2.2mm; the needle density of the needle plate in the barb process is 4000 needles/meter, and the needle punching
  • the frequency is 500 punctures/min, the depth of acupuncture is 2.7mm, and the liquid-conducting layer is semi-made into a fiber mesh;
  • the heat-resistant layer is semi-formed into a fiber mesh and the liquid-conducting layer is semi-formed into a fiber mesh and sent to the forward acupuncture machine through double channels for repeated acupuncture, and then through the inverted acupuncture machine for acupuncture to allow the two to pass through the fiber
  • the needles are cross-tangled and fixed together.
  • the needle density of the needle plate is 12000 pieces/meter, the needle punching frequency is 1200 punches/minute, and the needle punching depth is 1.3mm; in the barb punching step, the needle density of the needle plate is 14,000 pieces/meter, acupuncture frequency is 1,300 pricks/minute, acupuncture depth is 1.3mm, and then hot-rolled through a three-roller hot-rolling machine.
  • the control speed is 20 meters/minute, the roller spacing is 1.3mm, and the hot-rolling temperature is 180°C, and after hot rolling, it is wound to form a coil to obtain the fiber composite material.
  • the fiber composite material prepared above includes a heat-resistant layer and a liquid-conducting layer arranged in a stack; the material of the heat-resistant layer is polyimide fiber and Tencel fiber, and the material of the liquid-conducting layer is Tencel fiber, Based on the total weight of the heat-resistant layer material, the weight proportion of polyimide fiber is 40%, and the weight proportion of Tencel fiber is 60%.
  • the weight proportion of Tencel fiber is The weight ratio is 100%, the porosity of the heat-resistant layer is 76%, the porosity of the liquid-conducting layer is 82%, and the thickness of the heat-resistant layer accounts for 40% of the total thickness of the heat-resistant layer and the liquid-conducting layer, The weight of the heat-resistant layer accounts for 40% of the total weight of the heat-resistant layer and the liquid-conducting layer.
  • the total thickness of the heat-resistant layer and the liquid-conducting layer is 1.55mm.
  • the total weight of the heat-resistant layer and the liquid-conducting layer is 250g. /m 2 .
  • This comparative example provides a fiber composite material.
  • the difference between its preparation method and Example 1 is that polyimide fiber is not added in step 1), and the amount of Tencel fiber added is 1000kg.
  • This comparative example provides a fiber composite material.
  • the difference between its preparation method and Example 1 is that Tencel fiber is not added in step 1), and the amount of polyimide fiber added is 1000kg.
  • This comparative example provides a fiber composite material. Compared with Example 1, its preparation method differs in that no liquid-conducting layer is provided, and the preparation method includes the following steps:
  • the needle density of the needle plate is 3500 pieces/meter
  • the needling frequency is 400 punches/minute
  • the needling depth is 1.7mm
  • the needle density of the needle board is 4000 needles/meter
  • the needle punching frequency is 440 punches/minute
  • the needle punching depth is 2.1mm
  • the heat-resistant layer is semi-made into a fiber mesh
  • the heat-resistant layer is semi-formed into a fiber web and sent to a forward needle punching machine for repeated needle punching, and then through a reverse needle punching machine for needle punching.
  • the needle density of the needle plate is 12,000 pieces/meter.
  • the acupuncture frequency is 1200 piercings/minute, the acupuncture depth is 1.3mm; the needle density of the needle plate in the barbbing step is 14000 pieces/meter, the acupuncture frequency is 1300 piercings/minute, the acupuncture depth is 1.3mm, and then through three
  • the roller hot rolling machine performs hot rolling, controlling the vehicle speed to 20 meters/minute, the roller spacing to 1.3mm, and the hot rolling temperature to 180°C. After the hot rolling is completed, the rolled material is wound to form a coil, and the fiber composite material is obtained.
  • Average pore size test Cut the fiber composite material into five circles with a diameter of 1.5cm, and fully soak them in surfactant GQ16 (manufacturer Nanjing Gaoqian Functional Materials Technology Co., Ltd., surface tension is 16 ⁇ 10 -3 N/m) After 30 minutes, put the above-mentioned round sample face up into the test slot of the capillary flow porosity tester. After tightening the cover of the slot, perform the test (only 1 sample per time). The average value of the test sample For pore diameter, take the average of the test results of 5 samples.
  • Example 1 Average pore size ( ⁇ m) Porosity(%)
  • Example 2 48 62
  • Example 3 55
  • Example 4 59
  • Example 5 63
  • Example 6 70
  • Example 7 65
  • Example 8 57
  • Example 9 54
  • Example 10 54
  • Example 11 56
  • Example 12 57
  • Example 13 42
  • Example 14 54 80
  • e-liquid Apple e-liquid: nicotine content 0mg, solvent is propylene glycol and glycerin, volume ratio is 50/50
  • e-liquid e-liquid: nicotine content 0mg, solvent is propylene glycol and glycerin, volume ratio is 50/50
  • take out the suspension and drain for 10 minutes place the fixture in a freeze-drying centrifuge Centrifuge in the machine (20°C, 500 rpm) for 15 minutes, take out the fixture, slowly take out the fiber composite material from the fixture, weigh it, calculate the oil locking performance of the fiber composite material per unit mass through the mass difference, and calculate the average Value, unit is g/g, indicating the mass of oil locked per gram of fiber composite material.
  • Example 1 Oil storage (g/g) Oil locking ability (g/g) Oil conductivity (g/100s)
  • Example 1 4.90 2.98 0.3796
  • Example 2 4.29 2.57 0.3104
  • Example 3 5.06 3.15 0.3824
  • Example 4 5.57 3.41 0.4237
  • Example 5 5.90 3.64 0.4461
  • Example 6 6.13 3.77 0.4996
  • Example 7 5.49 3.38 0.4452
  • Example 8 5.04 3.03 0.3974
  • Example 9 4.86 2.95 0.3601
  • Example 10 4.81 2.84 0.3603
  • Example 11 5.14 3.07 0.3954
  • Example 12 5.27 3.25 0.4101
  • Example 13 5.32 3.58 0.4226

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Abstract

Matériau composite fibreux, et procédé de préparation associé et utilisation associée. Le matériau composite fibreux comprend une couche résistante à la chaleur et une couche de guidage de liquide, qui sont agencées d'une manière empilée, le matériau de la couche résistante à la chaleur comprenant des fibres résistantes à la chaleur et des fibres hydrophiles, et le matériau de la couche de guidage de liquide comprenant des fibres hydrophiles, les fibres résistantes à la chaleur comprenant des fibres de polyimide, et les fibres hydrophiles comprenant des fibres de Tencel. Dans le matériau composite fibreux, des fibres de polyimide spécifiques et des fibres de Tencel sont disposées dans la couche résistante à la chaleur et utilisées conjointement avec les fibres de Tencel dans la couche de guidage de liquide, de sorte que la propriété de guidage d'huile du matériau composite peut être considérablement améliorée ; en outre, le matériau composite obtenu présente également des propriétés de stockage d'huile et de blocage d'huile similaires ou même supérieures à celles du matériau de guidage d'huile existant.
PCT/CN2022/112887 2022-08-03 2022-08-16 Matériau composite fibreux, procédé de préparation associé et utilisation associée WO2024026930A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN202210927172.8 2022-08-03
CN202210927172.8A CN115233374B (zh) 2022-08-03 2022-08-03 一种纤维复合材料及其制备方法和应用
CNPCT/CN2022/110008 2022-08-03
CN2022110008 2022-08-03

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