CN112721362A - Heat-insulation composite textile fabric and preparation method thereof - Google Patents

Heat-insulation composite textile fabric and preparation method thereof Download PDF

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Publication number
CN112721362A
CN112721362A CN202011609101.0A CN202011609101A CN112721362A CN 112721362 A CN112721362 A CN 112721362A CN 202011609101 A CN202011609101 A CN 202011609101A CN 112721362 A CN112721362 A CN 112721362A
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prepare
layer
heat
heat insulation
fibers
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程同恩
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Taizhou Luqiao Jinghe Textile Co ltd
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Taizhou Luqiao Jinghe Textile Co ltd
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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
    • 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
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • 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
    • B32B5/06—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 characterised by a fibrous or filamentary layer mechanically connected, e.g. by needling to another layer, e.g. of fibres, of paper
    • 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
    • B32B5/22—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/10—Other agents for modifying properties
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/48—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polymers of halogenated hydrocarbons
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
    • D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic 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
    • B32B2250/00—Layers arrangement
    • B32B2250/20—All layers being fibrous or filamentary
    • 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
    • B32B2262/0223—Vinyl resin fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0253—Polyolefin fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0261—Polyamide fibres
    • B32B2262/0269—Aromatic polyamide fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/04—Cellulosic plastic fibres, e.g. rayon
    • 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
    • B32B2262/10—Inorganic 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
    • B32B2262/14—Mixture of at least two fibres made of different materials
    • 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
    • B32B2307/304—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption

Abstract

The invention discloses a preparation method of a heat-insulating composite textile fabric, which comprises the following steps: firstly, preparing a moisture permeable layer; secondly, preparing a heat insulation layer; thirdly, preparing a comfortable layer; fourthly, using Nomex twisted yarns as suture lines, and sequentially sewing the moisture permeable layer, the heat insulation layer and the comfort layer to obtain the heat insulation composite textile fabric; preparing a treatment solution from zirconium nitrate and yttrium nitrate in step S2, soaking cotton in the treatment solution to prepare precursor fibers, calcining and sintering to prepare hollow fibers, and blending the flexible fibers and the hollow fibers in step S3 to prepare a heat insulation layer; the flexible fibers and the hollow fibers can endow the heat insulation layer with excellent heat insulation performance; the moisture permeable fiber is a hollow structure, and the added nano titanium dioxide can increase the roughness and the pores of the surface of the prepared fiber, endow the fiber with excellent air permeability and moisture permeability, and further enable the woven moisture permeable layer to have excellent moisture permeability.

Description

Heat-insulation composite textile fabric and preparation method thereof
Technical Field
The invention belongs to the technical field of fabric textile, and particularly relates to a heat-insulation composite textile fabric and a preparation method thereof.
Background
The protective clothing is one of important equipment for protecting the personal safety of firefighters living in the first line of fire protection, is not only an indispensable necessity in a fire rescue scene, but also a fireproof tool for protecting the bodies of the firefighters from being injured, and therefore, the protective clothing suitable for the rescue activities in the fire scene is particularly important. Protective clothing generally has a multilayer structure, and comprises a flame-retardant refractory material layer, a waterproof breathable layer, a heat-insulating layer and a comfortable layer from outside to inside in sequence.
The Chinese invention patent CN105774062A discloses a high-heat-insulation protective clothing fabric and a protective clothing, wherein the high-heat-insulation protective clothing fabric sequentially comprises a flame-retardant layer, a heat-insulating layer and a comfortable layer. According to the high-heat-insulation protective clothing fabric and the protective clothing, the two layers of products with relatively stable carbonization heat shrinkage rates are connected with the flame-retardant high-temperature-resistant monofilaments, so that the thermal performance indexes of the two single-layer quilting composite fabrics with the same gram weight are obviously improved, and the fabric is warm-keeping, hydrophobic and moisture-removing, the comfort of the clothing can be improved, but sweat and water vapor emitted from the body surface of a firefighter are blocked on the heat-insulating layer and the comfort layer, so that the firefighter can feel stuffy and wet.
Disclosure of Invention
In order to overcome the technical problems, the invention provides a heat-insulating composite textile fabric and a preparation method thereof.
Preparing a treatment solution from zirconium nitrate and yttrium nitrate in step S2, soaking cotton in the treatment solution to prepare precursor fibers, calcining and sintering to prepare hollow fibers, and blending the flexible fibers and the hollow fibers in step S3 to prepare a heat insulation layer; the flexible fibers and the hollow fibers can impart excellent heat insulating properties to the heat insulating layer.
The purpose of the invention can be realized by the following technical scheme:
a heat insulation composite textile fabric comprises a moisture permeable layer, a heat insulation layer and a comfort layer from top to bottom in sequence;
the heat insulation layer is prepared by the following method:
step S1, adding PVA into a beaker filled with deionized water while stirring, soaking and uniformly stirring for 30min, then heating to 50-60 ℃, stirring for 30min at a rotating speed of 80-100r/min, heating to 70-80 ℃, and stirring for 4h to prepare PVA aqueous solution for later use; adding tetraethoxysilane and deionized water into a beaker according to the weight ratio of 1: 8, adding oxalic acid after stirring at a constant speed for 15min, stirring at a constant speed of 60-80r/min for 10h to prepare hydrolysate, uniformly mixing PVA aqueous solution and the hydrolysate according to the weight ratio of 1: 2 to prepare mixed solution, adding sodium chloride, continuing stirring for 10h, carrying out electrostatic spinning to prepare hybrid fiber, controlling the molar ratio of tetraethoxysilane to oxalic acid to be 0.1: 0.002, and the using amount of the sodium chloride to be 2-3% of the weight of the mixed solution, and then calcining the hybrid fiber at 1000 ℃ for 2h to prepare the flexible fiber;
step S2, adding zirconium nitrate and yttrium nitrate into deionized water according to the weight ratio of 10: 0.4, uniformly mixing to obtain a treatment solution, controlling the weight ratio of zirconium nitrate to deionized water to be 1: 20, adding cotton fibers into the treatment solution, soaking for 30min, taking out, drying for 4h in a drying oven at 60-80 ℃ to obtain precursor fibers, putting the precursor fibers into a heat treatment furnace, heating to 500 ℃ at the heating rate of 3-5 ℃/min, preserving heat for 30min at the temperature, heating to 1000 ℃, and sintering for 2h at the temperature to obtain hollow fibers;
and S3, mixing and weaving the flexible fibers prepared in the S1 and the hollow fibers prepared in the S2 according to the weight ratio of 2: 1 to prepare the heat-insulating layer with the warp density of 80 pieces/cm and the weft density of 70 pieces/cm.
Step S1, preparing a PVA aqueous solution, adding tetraethoxysilane into deionized water, adding oxalic acid as a catalyst to prepare hydrolysate of the tetraethoxysilane, mixing the PVA aqueous solution and the hydrolysate to prepare a mixed solution, performing electrostatic spinning to prepare hybrid fiber, and calcining to prepare flexible fiber, wherein the flexible fiber has flexibility and can be used in the field of fabrics, and the flexible fiber has small pores, can organize the heat convection of air, and has ultralow heat conductivity coefficient, so the flexible fiber can be used as heat insulation fiber; preparing a treatment solution from zirconium nitrate and yttrium nitrate in step S2, soaking cotton in the treatment solution to prepare precursor fibers, calcining and sintering to prepare hollow fibers, and blending the flexible fibers and the hollow fibers in step S3 to prepare a heat insulation layer; the flexible fibers and the hollow fibers can impart excellent heat insulating properties to the heat insulating layer.
Further, the gram weight of the moisture permeable layer is 220-250g/m2The gram weight of the heat insulation layer is 150-300g/m2The gram weight of the comfort layer is 100-150g/m2。
Furthermore, the comfort layer is formed by weaving meta-aramid fibers and viscose fibers according to the volume ratio of 3: 2.
Further, the moisture permeable layer is made by the following method:
step S11, enabling PTFE dispersion resin to pass through an 8-mesh screen at 15-20 ℃, then uniformly mixing the PTFE dispersion resin and stearic acid amide according to the weight ratio of 5: 1, transferring the mixture into a vacuum drying oven at 30-45 ℃ for drying, controlling the vacuum degree of the vacuum drying oven to be-0.10 MPa, and the drying time to be 8-10h, extruding and pressing to obtain a prefabricated product, placing the prefabricated product into a vacuum drying oven at 50 ℃ for drying for 10h to obtain a material 1, adding the material 1 into deionized water, and magnetically stirring for 20min to obtain an emulsion with the mass fraction of 60%;
step S12, uniformly mixing 10% of PVA solution and 60% of emulsion by mass fraction, adding 3% of boric acid solution by mass fraction, uniformly mixing, adding nano titanium dioxide to prepare spinning solution, performing electrostatic spinning to prepare nascent fiber, transferring the nascent fiber to a muffle furnace, heating to 350-380 ℃ at the heating rate of 3-5 ℃/min, preserving heat for 2 hours to prepare moisture permeable fiber, spinning to prepare a moisture permeable layer, and controlling the weight ratio of the 10% of PVA solution, the 60% of emulsion, the 3% of boric acid solution and the nano titanium dioxide to be 1: 3: 0.01: 0.1.
In step S11, a PTFE dispersion resin and stearic acid amide are mixed and pressed, stearic acid amide is used as a lubricant, a preform is obtained, drying in a vacuum drying oven at 50 ℃ for 10h to remove the lubricant so that the PTFE dispersion resin is a hollow structure, then evenly mixing a PVA solution with the mass fraction of 10% with an emulsion with the mass fraction of 60% in step S12, adding boric acid to improve the viscosity of the spinning solution, mixing the PVA as a matrix polymer with the PTFE, adding nano titanium dioxide, then preparing the moisture permeable fiber by calcining, decomposing the PVA in the calcining process to ensure the purity of the modified moisture permeable fiber, the moisture permeable fiber is a hollow structure, and the added nano titanium dioxide can increase the roughness and pores of the surface of the prepared fiber, endow the fiber with excellent air permeability and moisture permeability, and further enable the woven moisture permeable layer to have excellent moisture permeability.
A preparation method of a heat-insulation composite textile fabric comprises the following steps:
firstly, preparing a moisture permeable layer;
secondly, preparing a heat insulation layer;
thirdly, preparing a comfortable layer;
and fourthly, using Nomex twisted yarns as suture lines, and sequentially sewing the moisture permeable layer, the heat insulation layer and the comfort layer to obtain the heat insulation composite textile fabric.
The invention has the beneficial effects that:
(1) the heat-insulating composite textile fabric comprises a moisture permeable layer, a heat insulating layer and a comfortable layer from top to bottom in sequence; in the preparation process of the moisture permeable layer, PTFE dispersion resin and stearic acid amide are mixed and pressed in a step S11, stearic acid amide is used as a lubricant to prepare a prefabricated product, the lubricant can be removed after drying for 10 hours in a vacuum drying oven at 50 ℃, PTFE dispersion resin is made into a hollow structure, then in a step S12, PVA solution with the mass fraction of 10% and emulsion with the mass fraction of 60% are uniformly mixed, boric acid is added to improve the viscosity of spinning solution, PVA is used as a matrix polymer and is mixed with PTFE, nano titanium dioxide is added, then moisture permeable fibers are prepared by calcining, the PVA is decomposed in the calcining process, the purity of the moisture permeable modified fibers can be guaranteed, the moisture permeable fibers are of a hollow structure, and the nano titanium dioxide is added to increase the roughness and pores of the surfaces of the prepared fibers, so that the prepared fibers have excellent air permeability, and further the spun moisture permeable layer has excellent moisture permeability, prevent the generation of stuffy feeling;
(2) in the preparation process of the heat insulation layer, in step S1, a PVA aqueous solution is prepared first, ethyl orthosilicate is added into deionized water, oxalic acid is added to serve as a catalyst, hydrolysate of the ethyl orthosilicate is prepared, the PVA aqueous solution and the hydrolysate are mixed to prepare mixed solution, electrostatic spinning is carried out to prepare hybrid fiber, and then calcination is carried out to prepare flexible fiber, wherein the flexible fiber has flexibility and can be used in the field of fabrics, and the flexible fiber has small pores, can organize the heat convection of air and has ultralow heat conductivity coefficient, so the flexible fiber can be used as heat insulation fiber; preparing a treatment solution from zirconium nitrate and yttrium nitrate in step S2, soaking cotton in the treatment solution to prepare precursor fibers, calcining and sintering to prepare hollow fibers, and blending the flexible fibers and the hollow fibers in step S3 to prepare a heat insulation layer; the flexible fibers and the hollow fibers can impart excellent heat insulating properties to the heat insulating layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A preparation method of a heat-insulation composite textile fabric comprises the following steps:
firstly, preparing a moisture permeable layer;
secondly, preparing a heat insulation layer;
thirdly, preparing a comfortable layer;
and fourthly, using Nomex twisted yarns as suture lines, and sequentially sewing the moisture permeable layer, the heat insulation layer and the comfort layer to obtain the heat insulation composite textile fabric.
The gram weight of the moisture permeable layer is 220g/m2The gram weight of the heat insulation layer is 150g/m2The gram weight of the comfort layer is 100g/m2。
The heat insulation layer is manufactured by the following method:
step S1, adding PVA into a beaker filled with deionized water while stirring, soaking and uniformly stirring for 30min, then heating to 50 ℃, stirring for 30min at a rotating speed of 80r/min, heating to 70 ℃, and stirring for 4h to prepare PVA aqueous solution for later use; adding tetraethoxysilane and deionized water into a beaker according to the weight ratio of 1: 8, adding oxalic acid after stirring at a constant speed for 15min, stirring at a constant speed of 60r/min for 10h to prepare hydrolysate, uniformly mixing PVA aqueous solution and the hydrolysate according to the weight ratio of 1: 2 to prepare mixed solution, adding sodium chloride, continuing stirring for 10h, carrying out electrostatic spinning to prepare hybrid fiber, controlling the molar ratio of tetraethoxysilane to oxalic acid to be 0.1: 0.002, and controlling the use amount of the sodium chloride to be 2% of the weight of the mixed solution, and then calcining the hybrid fiber at 1000 ℃ for 2h to prepare the flexible fiber;
step S2, adding zirconium nitrate and yttrium nitrate into deionized water according to the weight ratio of 10: 0.4, uniformly mixing to obtain a treatment solution, controlling the weight ratio of zirconium nitrate to deionized water to be 1: 20, adding cotton fibers into the treatment solution, soaking for 30min, taking out, drying for 4h in a 60 ℃ drying box to obtain precursor fibers, putting the precursor fibers into a heat treatment furnace, heating to 500 ℃ at the heating rate of 5 ℃/min, preserving heat for 30min at the temperature, heating to 1000 ℃, and sintering for 2h at the temperature to obtain hollow fibers;
and S3, mixing and weaving the flexible fibers prepared in the S1 and the hollow fibers prepared in the S2 according to the weight ratio of 2: 1 to prepare the heat-insulating layer with the warp density of 80 pieces/cm and the weft density of 70 pieces/cm.
The moisture permeable layer is prepared by the following method:
s11, filtering PTFE dispersion resin through an 8-mesh screen at 15 ℃, uniformly mixing the PTFE dispersion resin with stearic acid amide according to the weight ratio of 5: 1, transferring the mixture into a 30 ℃ vacuum drying oven for drying, controlling the vacuum degree of the vacuum drying oven to be-0.10 MPa and the drying time to be 8h, extruding and pressing to obtain a prefabricated product, placing the prefabricated product into a 50 ℃ vacuum drying oven for drying for 10h to obtain a material 1, adding the material 1 into deionized water, and magnetically stirring for 20min to obtain an emulsion with the mass fraction of 60%;
step S12, uniformly mixing a 10% PVA solution and a 60% emulsion by mass fraction, adding a 3% boric acid solution, uniformly mixing, adding nano titanium dioxide to prepare a spinning solution, performing electrostatic spinning to prepare nascent fiber, transferring the nascent fiber to a muffle furnace, heating to 350 ℃ at a heating rate of 5 ℃/min, preserving heat for 2h to prepare moisture permeable fiber, and spinning to prepare a moisture permeable layer, wherein the weight ratio of the 10% PVA solution, the 60% emulsion, the 3% boric acid solution and the nano titanium dioxide is controlled to be 1: 3: 0.01: 0.1.
Example 2
A preparation method of a heat-insulation composite textile fabric comprises the following steps:
firstly, preparing a moisture permeable layer;
secondly, preparing a heat insulation layer;
thirdly, preparing a comfortable layer;
and fourthly, using Nomex twisted yarns as suture lines, and sequentially sewing the moisture permeable layer, the heat insulation layer and the comfort layer to obtain the heat insulation composite textile fabric.
The gram weight of the moisture permeable layer is 230g/m2The gram weight of the heat insulation layer is 200g/m2The gram weight of the comfort layer is 120g/m2。
The heat insulation layer is manufactured by the following method:
step S1, adding PVA into a beaker filled with deionized water while stirring, soaking and uniformly stirring for 30min, then heating to 50 ℃, stirring for 30min at a rotating speed of 80r/min, heating to 70 ℃, and stirring for 4h to prepare PVA aqueous solution for later use; adding tetraethoxysilane and deionized water into a beaker according to the weight ratio of 1: 8, adding oxalic acid after stirring at a constant speed for 15min, stirring at a constant speed of 60r/min for 10h to prepare hydrolysate, uniformly mixing PVA aqueous solution and the hydrolysate according to the weight ratio of 1: 2 to prepare mixed solution, adding sodium chloride, continuing stirring for 10h, carrying out electrostatic spinning to prepare hybrid fiber, controlling the molar ratio of tetraethoxysilane to oxalic acid to be 0.1: 0.002, and controlling the use amount of the sodium chloride to be 2% of the weight of the mixed solution, and then calcining the hybrid fiber at 1000 ℃ for 2h to prepare the flexible fiber;
step S2, adding zirconium nitrate and yttrium nitrate into deionized water according to the weight ratio of 10: 0.4, uniformly mixing to obtain a treatment solution, controlling the weight ratio of zirconium nitrate to deionized water to be 1: 20, adding cotton fibers into the treatment solution, soaking for 30min, taking out, drying for 4h in a 60 ℃ drying box to obtain precursor fibers, putting the precursor fibers into a heat treatment furnace, heating to 500 ℃ at the heating rate of 5 ℃/min, preserving heat for 30min at the temperature, heating to 1000 ℃, and sintering for 2h at the temperature to obtain hollow fibers;
and S3, mixing and weaving the flexible fibers prepared in the S1 and the hollow fibers prepared in the S2 according to the weight ratio of 2: 1 to prepare the heat-insulating layer with the warp density of 80 pieces/cm and the weft density of 70 pieces/cm.
The moisture permeable layer is prepared by the following method:
s11, filtering PTFE dispersion resin through an 8-mesh screen at 15 ℃, uniformly mixing the PTFE dispersion resin with stearic acid amide according to the weight ratio of 5: 1, transferring the mixture into a 30 ℃ vacuum drying oven for drying, controlling the vacuum degree of the vacuum drying oven to be-0.10 MPa and the drying time to be 8h, extruding and pressing to obtain a prefabricated product, placing the prefabricated product into a 50 ℃ vacuum drying oven for drying for 10h to obtain a material 1, adding the material 1 into deionized water, and magnetically stirring for 20min to obtain an emulsion with the mass fraction of 60%;
step S12, uniformly mixing a 10% PVA solution and a 60% emulsion by mass fraction, adding a 3% boric acid solution, uniformly mixing, adding nano titanium dioxide to prepare a spinning solution, performing electrostatic spinning to prepare nascent fiber, transferring the nascent fiber to a muffle furnace, heating to 350 ℃ at a heating rate of 5 ℃/min, preserving heat for 2h to prepare moisture permeable fiber, and spinning to prepare a moisture permeable layer, wherein the weight ratio of the 10% PVA solution, the 60% emulsion, the 3% boric acid solution and the nano titanium dioxide is controlled to be 1: 3: 0.01: 0.1.
Example 3
A preparation method of a heat-insulation composite textile fabric comprises the following steps:
firstly, preparing a moisture permeable layer;
secondly, preparing a heat insulation layer;
thirdly, preparing a comfortable layer;
and fourthly, using Nomex twisted yarns as suture lines, and sequentially sewing the moisture permeable layer, the heat insulation layer and the comfort layer to obtain the heat insulation composite textile fabric.
The gram weight of the moisture permeable layer is 240g/m2The gram weight of the heat insulation layer is 250g/m2The gram weight of the comfort layer is 140g/m2。
The heat insulation layer is manufactured by the following method:
step S1, adding PVA into a beaker filled with deionized water while stirring, soaking and uniformly stirring for 30min, then heating to 50 ℃, stirring for 30min at a rotating speed of 80r/min, heating to 70 ℃, and stirring for 4h to prepare PVA aqueous solution for later use; adding tetraethoxysilane and deionized water into a beaker according to the weight ratio of 1: 8, adding oxalic acid after stirring at a constant speed for 15min, stirring at a constant speed of 60r/min for 10h to prepare hydrolysate, uniformly mixing PVA aqueous solution and the hydrolysate according to the weight ratio of 1: 2 to prepare mixed solution, adding sodium chloride, continuing stirring for 10h, carrying out electrostatic spinning to prepare hybrid fiber, controlling the molar ratio of tetraethoxysilane to oxalic acid to be 0.1: 0.002, and controlling the use amount of the sodium chloride to be 2% of the weight of the mixed solution, and then calcining the hybrid fiber at 1000 ℃ for 2h to prepare the flexible fiber;
step S2, adding zirconium nitrate and yttrium nitrate into deionized water according to the weight ratio of 10: 0.4, uniformly mixing to obtain a treatment solution, controlling the weight ratio of zirconium nitrate to deionized water to be 1: 20, adding cotton fibers into the treatment solution, soaking for 30min, taking out, drying for 4h in a 60 ℃ drying box to obtain precursor fibers, putting the precursor fibers into a heat treatment furnace, heating to 500 ℃ at the heating rate of 5 ℃/min, preserving heat for 30min at the temperature, heating to 1000 ℃, and sintering for 2h at the temperature to obtain hollow fibers;
and S3, mixing and weaving the flexible fibers prepared in the S1 and the hollow fibers prepared in the S2 according to the weight ratio of 2: 1 to prepare the heat-insulating layer with the warp density of 80 pieces/cm and the weft density of 70 pieces/cm.
The moisture permeable layer is prepared by the following method:
s11, filtering PTFE dispersion resin through an 8-mesh screen at 15 ℃, uniformly mixing the PTFE dispersion resin with stearic acid amide according to the weight ratio of 5: 1, transferring the mixture into a 30 ℃ vacuum drying oven for drying, controlling the vacuum degree of the vacuum drying oven to be-0.10 MPa and the drying time to be 8h, extruding and pressing to obtain a prefabricated product, placing the prefabricated product into a 50 ℃ vacuum drying oven for drying for 10h to obtain a material 1, adding the material 1 into deionized water, and magnetically stirring for 20min to obtain an emulsion with the mass fraction of 60%;
step S12, uniformly mixing a 10% PVA solution and a 60% emulsion by mass fraction, adding a 3% boric acid solution, uniformly mixing, adding nano titanium dioxide to prepare a spinning solution, performing electrostatic spinning to prepare nascent fiber, transferring the nascent fiber to a muffle furnace, heating to 350 ℃ at a heating rate of 5 ℃/min, preserving heat for 2h to prepare moisture permeable fiber, and spinning to prepare a moisture permeable layer, wherein the weight ratio of the 10% PVA solution, the 60% emulsion, the 3% boric acid solution and the nano titanium dioxide is controlled to be 1: 3: 0.01: 0.1.
Example 4
A preparation method of a heat-insulation composite textile fabric comprises the following steps:
firstly, preparing a moisture permeable layer;
secondly, preparing a heat insulation layer;
thirdly, preparing a comfortable layer;
and fourthly, using Nomex twisted yarns as suture lines, and sequentially sewing the moisture permeable layer, the heat insulation layer and the comfort layer to obtain the heat insulation composite textile fabric.
The gram weight of the moisture permeable layer is 250g/m2The gram weight of the heat insulation layer is 300g/m2The gram weight of the comfort layer is 150g/m2。
The heat insulation layer is manufactured by the following method:
step S1, adding PVA into a beaker filled with deionized water while stirring, soaking and uniformly stirring for 30min, then heating to 50 ℃, stirring for 30min at a rotating speed of 80r/min, heating to 70 ℃, and stirring for 4h to prepare PVA aqueous solution for later use; adding tetraethoxysilane and deionized water into a beaker according to the weight ratio of 1: 8, adding oxalic acid after stirring at a constant speed for 15min, stirring at a constant speed of 60r/min for 10h to prepare hydrolysate, uniformly mixing PVA aqueous solution and the hydrolysate according to the weight ratio of 1: 2 to prepare mixed solution, adding sodium chloride, continuing stirring for 10h, carrying out electrostatic spinning to prepare hybrid fiber, controlling the molar ratio of tetraethoxysilane to oxalic acid to be 0.1: 0.002, and controlling the use amount of the sodium chloride to be 2% of the weight of the mixed solution, and then calcining the hybrid fiber at 1000 ℃ for 2h to prepare the flexible fiber;
step S2, adding zirconium nitrate and yttrium nitrate into deionized water according to the weight ratio of 10: 0.4, uniformly mixing to obtain a treatment solution, controlling the weight ratio of zirconium nitrate to deionized water to be 1: 20, adding cotton fibers into the treatment solution, soaking for 30min, taking out, drying for 4h in a 60 ℃ drying box to obtain precursor fibers, putting the precursor fibers into a heat treatment furnace, heating to 500 ℃ at the heating rate of 5 ℃/min, preserving heat for 30min at the temperature, heating to 1000 ℃, and sintering for 2h at the temperature to obtain hollow fibers;
and S3, mixing and weaving the flexible fibers prepared in the S1 and the hollow fibers prepared in the S2 according to the weight ratio of 2: 1 to prepare the heat-insulating layer with the warp density of 80 pieces/cm and the weft density of 70 pieces/cm.
The moisture permeable layer is prepared by the following method:
s11, filtering PTFE dispersion resin through an 8-mesh screen at 15 ℃, uniformly mixing the PTFE dispersion resin with stearic acid amide according to the weight ratio of 5: 1, transferring the mixture into a 30 ℃ vacuum drying oven for drying, controlling the vacuum degree of the vacuum drying oven to be-0.10 MPa and the drying time to be 8h, extruding and pressing to obtain a prefabricated product, placing the prefabricated product into a 50 ℃ vacuum drying oven for drying for 10h to obtain a material 1, adding the material 1 into deionized water, and magnetically stirring for 20min to obtain an emulsion with the mass fraction of 60%;
step S12, uniformly mixing a 10% PVA solution and a 60% emulsion by mass fraction, adding a 3% boric acid solution, uniformly mixing, adding nano titanium dioxide to prepare a spinning solution, performing electrostatic spinning to prepare nascent fiber, transferring the nascent fiber to a muffle furnace, heating to 350 ℃ at a heating rate of 5 ℃/min, preserving heat for 2h to prepare moisture permeable fiber, and spinning to prepare a moisture permeable layer, wherein the weight ratio of the 10% PVA solution, the 60% emulsion, the 3% boric acid solution and the nano titanium dioxide is controlled to be 1: 3: 0.01: 0.1.
Comparative example 1
This comparative example compares to example 1, without stitching the moisture permeable layer.
Comparative example 2
This comparative example is a stitched insulation layer as compared to example 1.
Comparative example 3
The comparative example is a heat-insulating composite fabric in the market.
The thermal protective properties and water vapor transmission rates of examples 1 to 4 and comparative examples 1 to 3 were measured, and the results are shown in the following table;
Figure BDA0002874201410000141
Figure BDA0002874201410000151
as can be seen from the above table, the TPPs of examples 1-4 are 673.3-680.1, and the water vapor transmission rates are 803-811g/m224h, TPP of comparative examples 1 to 3 is 233.53 to 665.3, water vapor transmission rate is 245-224 h; step S2, preparing a treatment solution by zirconium nitrate and yttrium nitrate, soaking cotton in the treatment solution to prepare precursor fiber, and thenCalcining and sintering to obtain hollow fibers, and blending the flexible fibers and the hollow fibers in step S3 to obtain a heat insulation layer; the flexible fibers and the hollow fibers can impart excellent heat insulating properties to the heat insulating layer.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is illustrative and explanatory only and is not intended to be exhaustive or to limit the invention to the precise embodiments described, and various modifications, additions, and substitutions may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the claims.

Claims (5)

1. A heat insulation composite textile fabric is characterized in that a moisture permeable layer, a heat insulation layer and a comfortable layer are sequentially arranged from top to bottom;
the heat insulation layer is prepared by the following method:
step S1, adding PVA into a beaker filled with deionized water while stirring, soaking and uniformly stirring for 30min, then heating to 50-60 ℃, stirring for 30min at a rotating speed of 80-100r/min, heating to 70-80 ℃, and stirring for 4h to prepare PVA aqueous solution for later use; adding tetraethoxysilane and deionized water into a beaker according to the weight ratio of 1: 8, adding oxalic acid after stirring at a constant speed for 15min, stirring at a constant speed of 60-80r/min for 10h to prepare hydrolysate, uniformly mixing PVA aqueous solution and the hydrolysate according to the weight ratio of 1: 2 to prepare mixed solution, adding sodium chloride, continuing stirring for 10h, carrying out electrostatic spinning to prepare hybrid fiber, controlling the molar ratio of tetraethoxysilane to oxalic acid to be 0.1: 0.002, and the using amount of the sodium chloride to be 2-3% of the weight of the mixed solution, and then calcining the hybrid fiber at 1000 ℃ for 2h to prepare the flexible fiber;
step S2, adding zirconium nitrate and yttrium nitrate into deionized water according to the weight ratio of 10: 0.4, uniformly mixing to obtain a treatment solution, controlling the weight ratio of zirconium nitrate to deionized water to be 1: 20, adding cotton fibers into the treatment solution, soaking for 30min, taking out, drying for 4h in a drying oven at 60-80 ℃ to obtain precursor fibers, putting the precursor fibers into a heat treatment furnace, heating to 500 ℃ at the heating rate of 3-5 ℃/min, preserving heat for 30min at the temperature, heating to 1000 ℃, and sintering for 2h at the temperature to obtain hollow fibers;
and S3, mixing and weaving the flexible fibers prepared in the S1 and the hollow fibers prepared in the S2 according to the weight ratio of 2: 1 to prepare the heat-insulating layer with the warp density of 80 pieces/cm and the weft density of 70 pieces/cm.
2. The heat-insulating composite textile fabric as claimed in claim 1, wherein the grammage of the moisture permeable layer is 220-250g/m2The gram weight of the heat insulation layer is 150-300g/m2The gram weight of the comfort layer is 100-150g/m2。
3. The heat-insulating composite textile fabric as claimed in claim 1, wherein the comfort layer is woven from meta-aramid fibers and viscose fibers in a volume ratio of 3: 2.
4. A heat insulating composite textile fabric as claimed in claim 1, wherein said moisture permeable layer is made by a process comprising:
step S11, enabling PTFE dispersion resin to pass through an 8-mesh screen at 15-20 ℃, then uniformly mixing the PTFE dispersion resin and stearic acid amide according to the weight ratio of 5: 1, transferring the mixture into a vacuum drying oven at 30-45 ℃ for drying, controlling the vacuum degree of the vacuum drying oven to be-0.10 MPa, and the drying time to be 8-10h, extruding and pressing to obtain a prefabricated product, placing the prefabricated product into a vacuum drying oven at 50 ℃ for drying for 10h to obtain a material 1, adding the material 1 into deionized water, and magnetically stirring for 20min to obtain an emulsion with the mass fraction of 60%;
step S12, uniformly mixing 10% of PVA solution and 60% of emulsion by mass fraction, adding 3% of boric acid solution by mass fraction, uniformly mixing, adding nano titanium dioxide to prepare spinning solution, performing electrostatic spinning to prepare nascent fiber, transferring the nascent fiber to a muffle furnace, heating to 350-380 ℃ at the heating rate of 3-5 ℃/min, preserving heat for 2 hours to prepare moisture permeable fiber, spinning to prepare a moisture permeable layer, and controlling the weight ratio of the 10% of PVA solution, the 60% of emulsion, the 3% of boric acid solution and the nano titanium dioxide to be 1: 3: 0.01: 0.1.
5. The method for preparing the heat-insulating composite textile fabric according to claim 1, characterized by comprising the following steps:
firstly, preparing a moisture permeable layer;
secondly, preparing a heat insulation layer;
thirdly, preparing a comfortable layer;
and fourthly, using Nomex twisted yarns as suture lines, and sequentially sewing the moisture permeable layer, the heat insulation layer and the comfort layer to obtain the heat insulation composite textile fabric.
CN202011609101.0A 2020-12-30 2020-12-30 Heat-insulation composite textile fabric and preparation method thereof Pending CN112721362A (en)

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CN111516310A (en) * 2020-04-17 2020-08-11 太和县柯润戈服装有限公司 Process for processing heat-insulation protective clothing by using composite fiber material
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CN104341151A (en) * 2014-10-21 2015-02-11 山东理工大学 Simple method for preparing zirconium oxide fiber fabric by using cotton-containing fabric as template
CN110170282A (en) * 2019-05-07 2019-08-27 清华大学 A kind of anisotropy stratiform inorfil aerogel material and preparation method thereof
CN111516310A (en) * 2020-04-17 2020-08-11 太和县柯润戈服装有限公司 Process for processing heat-insulation protective clothing by using composite fiber material
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