CN113373538A - Waterproof high-breathability medical fabric and preparation method thereof - Google Patents

Waterproof high-breathability medical fabric and preparation method thereof Download PDF

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Publication number
CN113373538A
CN113373538A CN202110824591.4A CN202110824591A CN113373538A CN 113373538 A CN113373538 A CN 113373538A CN 202110824591 A CN202110824591 A CN 202110824591A CN 113373538 A CN113373538 A CN 113373538A
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silk fibroin
modified
fabric
silicon dioxide
preparation
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Chinese (zh)
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陈�光
管蓓莉
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Guangxi Guiyao Medical Technology Co ltd
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Guangxi Guiyao Medical Technology Co ltd
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    • 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
    • D01F4/00—Monocomponent artificial filaments or the like of proteins; Manufacture thereof
    • 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
    • B32B5/22—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
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/0007—Electro-spinning
    • D01D5/0015—Electro-spinning characterised by the initial state of the material
    • 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
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
    • D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
    • D06M13/188—Monocarboxylic acids; Anhydrides, halides or salts thereof
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
    • D06M13/325—Amines
    • D06M13/335—Amines having an amino group bound to a carbon atom of a six-membered aromatic ring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/06—Vegetal fibres
    • B32B2262/062—Cellulose fibres, e.g. cotton
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/02—Natural fibres, other than mineral fibres
    • D06M2101/04—Vegetal fibres
    • D06M2101/06—Vegetal fibres cellulosic
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/02—Natural fibres, other than mineral fibres
    • D06M2101/10—Animal fibres
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
    • D06M2200/01—Stain or soil resistance
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
    • D06M2200/10—Repellency against liquids
    • D06M2200/12—Hydrophobic properties
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
    • D06M2200/50—Modified hand or grip properties; Softening compositions

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Cosmetics (AREA)

Abstract

The invention discloses a waterproof high-breathability medical fabric and a preparation method thereof, and relates to the technical field of textiles. The waterproof high-breathability medical fabric prepared by the invention is prepared by pressing two layers of fabric base cloth into a fabric, wherein one layer of fabric base cloth is formed by weaving modified silk fibroin fibers, and the other layer of fabric base cloth is formed by weaving modified cotton fibers; the modified silk fibroin fiber is prepared by blending modified silicon dioxide and silk fibroin and performing electrostatic spinning, wherein the modified silicon dioxide is nano silicon dioxide grafted with hyperbranched polyamide; the modified cotton fiber is prepared by grafting stearic acid on cotton fiber; the waterproof high-breathability medical fabric prepared by the invention has excellent waterproof breathability and is very soft.

Description

Waterproof high-breathability medical fabric and preparation method thereof
Technical Field
The invention relates to the technical field of textiles, in particular to a waterproof high-breathability medical fabric and a preparation method thereof.
Background
The medical fabric comprises beddings such as bed sheets, quilt covers and pillow cases in hospitals, and surgical supplies such as treatment towels, wrapping cloth, hole towels and abdominal dissections. In general, plain white cloth, thick gray cloth, and spun white cloth of pure cotton are used as medical fabrics.
Nowadays, the textile technology field develops rapidly, and waterproof and breathable fabrics are frequently available. However, for medical fabrics, the fabrics need to be waterproof and breathable, and need to be soft while being breathable.
Disclosure of Invention
The invention aims to provide a waterproof high-breathability medical fabric and a preparation method thereof, and aims to solve the problems in the background art.
The waterproof high-breathability medical fabric is characterized by mainly comprising the following raw material components in parts by weight: 1-2 parts of fabric base cloth A and 1-2 parts of fabric base cloth B;
the fabric base cloth A is formed by weaving modified silk fibroin fibers;
the fabric base cloth B is formed by weaving modified cotton fibers.
Preferably, the modified silk fibroin fiber is prepared by blending modified silicon dioxide and silk fibroin for electrostatic spinning, then performing high-temperature treatment and soaking in a dopamine solution.
Preferably, the modified cotton fiber is prepared by grafting stearic acid on cotton fiber.
Preferably, the preparation method of the waterproof high-breathability medical fabric comprises the following steps: the preparation method comprises the steps of modified silicon dioxide preparation, modified silk fibroin fiber preparation, fabric base cloth A preparation, modified cotton fiber preparation, fabric base cloth B preparation and preparation of waterproof high-breathability medical fabric.
Preferably, the preparation method of the waterproof high-breathability medical fabric comprises the following specific steps:
(1) placing nano silicon dioxide in a vacuum drying oven, drying for 12h at 60 ℃ in vacuum, mixing the dried nano silicon dioxide with methyl acrylate, adding the mixture into a three-neck flask by taking methanol as a solvent, carrying out vacuum filtration after stirring and reacting for 6-8 h, and drying to constant weight to obtain a modified silicon dioxide blank; adding ethylenediamine into the modified silicon dioxide blank, mixing, stirring and reacting for 6-8 h by taking methanol as a solvent, performing vacuum filtration, and drying to constant weight to obtain modified silicon dioxide;
(2) boiling silk in 0.5% sodium carbonate solution at 100 ℃ for 60min, washing the boiled silk fibroin with distilled water for 3-5 times, adding the obtained product into an ethanol solution of calcium chloride 10-15 times the mass of the silk fibroin, stirring and dissolving the obtained product, then putting the obtained product into a dialysis bag, dialyzing the obtained product with distilled water at room temperature for 3 days, and concentrating the obtained product to obtain a silk fibroin water solution with the mass fraction of 34%;
(3) uniformly mixing the modified silicon dioxide prepared in the step (1) with the silk fibroin aqueous solution prepared in the step (2), and standing for 30-50 min to prepare a modified silk fibroin electrostatic spinning solution; carrying out electrostatic spinning on the modified silk fibroin electrostatic spinning solution to prepare modified silk fibroin fibers; fumigating the modified silk fibroin fibers, soaking the fumigated silk fibroin fibers in a dopamine solution with the mass fraction of 20-30%, taking out the fumigated silk fibroin fibers after 20-30 min, drying the fumigated silk fibroin fibers, and weaving the fumigated silk fibroin fibers into fabric;
(4) heating a stearic acid aqueous solution with the mass fraction of 20% to boiling, adding cotton fibers, stirring at a high speed, drying after stirring, and weaving into a fabric base fabric B;
(5) and cutting the fabric base cloth A and the fabric base cloth B into the same size, attaching the fabric base cloth A and the fabric base cloth B, standing for 3-5 hours, and pressing by using a hot press to prepare a finished product.
Preferably, in the step (1): the mass ratio of the nano silicon dioxide to the methyl acrylate in the methanol is 2: 1: 20; the mass ratio of the modified silicon dioxide blank to the ethylenediamine in the methanol is 2: 1: 20.
preferably, in the step (2): the mass ratio of the silk to the sodium carbonate solution is 1: 10-1: 20; the ethanol solution of calcium chloride is calcium chloride, ethanol and deionized water according to the mass ratio of 1: 2: 8, mixing the components.
Preferably, in the step (3): the mass ratio of the modified silicon dioxide to the silk fibroin aqueous solution is 1: 8-1: 10; the fumigation temperature is 100 ℃, and the fumigation liquid is water; the volume ratio of the modified silk fibroin fibers to the dopamine solution is 1: 10.
preferably, in the step (4): the mass ratio of the cotton fibers to the stearic acid aqueous solution is 1: 20-1: 30, of a nitrogen-containing gas; and during high-speed stirring, the rotating speed is 2000-3000 rpm, and the time is 10-15 min.
Preferably, in the step (5): the temperature of the hot press is 150-180 ℃ and the pressure is 1-5 Mpa during pressing.
Compared with the prior art, the invention has the following beneficial effects:
the waterproof high-breathability medical fabric prepared by the invention is prepared by pressing two layers of fabric base cloth into a fabric, wherein one layer of fabric base cloth is formed by weaving modified silk fibroin fibers, and the other layer of fabric base cloth is formed by weaving modified cotton fibers;
the modified silk fibroin fiber is prepared by blending modified silicon dioxide and silk fibroin and performing electrostatic spinning, wherein the modified silicon dioxide is nano silicon dioxide grafted with hyperbranched polyamide; the nano silicon dioxide grafted with the hyperbranched polyamide can be uniformly dispersed in silk fibroin spinning solution, the ellipsoidal hyperbranched polyamide can be embedded into random coil and alpha-helical structures of the silk fibroin after being blended with the silk fibroin, so that the modified silicon dioxide is suspended on the silk fibroin, the modified silicon dioxide is immersed into a dopamine solution after being subjected to high-temperature treatment after being subjected to electrostatic spinning to prepare fibers, the silk fibroin is converted into beta-folded conformation from the random coil and alpha-helical structures through the high-temperature treatment, and one part of the modified silicon dioxide is positioned in the folded structure while the other part is still suspended on the silk fibroin; after the fabric is immersed in the dopamine solution, the modified silicon dioxide is fixed on the fiber while the polydopamine is formed on the surface of the fiber, the softness of the fabric is enhanced, and a part of the modified silicon dioxide which is suspended on the silk fibroin after the fabric is woven is directly filled in the pores, so that the pores in the product are reduced, the water is blocked outside the fabric, and the fabric has waterproof effect and air permeability.
The modified cotton fiber is characterized in that stearic acid is grafted on the cotton fiber, hydroxyl on the surface of the cotton fiber is reduced, so that the hydrophilicity of the fabric is reduced, meanwhile, after the fabric base cloth is woven and the modified silk fibroin fabric base cloth is pressed, the remaining stearic acid can be neutralized with the hyperbranched polyamide grafted by the modified silicon dioxide, the hyperbranched polyamide wound in a three-dimensional net shape in a non-chain manner is converted into a three-dimensional net structure with an inner winding manner due to the addition of the stearic acid, so that the two layers of the fabric base cloth are connected, and pores between the two layers of the fabric base cloth are filled into a dense net-shaped layer; under the humid condition, the product can be directly dispersed by the dense reticular layer to form a water layer in the fabric even if the outside of the fabric absorbs a small amount of water, so that the fabric is softer, and simultaneously, the water and other pollutants are prevented from entering the fabric to cause damage.
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.
In order to more clearly illustrate the method provided by the invention, the following examples are used for detailed description, and the test method of each index of the waterproof high-breathability medical fabric manufactured in the following examples is as follows:
air permeability: the waterproof high-permeability medical fabrics prepared in the examples 1 and 2 and the comparative example 1 are subjected to air flow rate test according to the standard GB/T5453 determination of air permeability of textile fabrics.
Water resistance: the waterproof highly air-permeable medical fabrics prepared in examples 1 and 2 and comparative example 2 were subjected to a surface water contact angle test using a contact angle measuring instrument.
Flexibility: the waterproof highly breathable medical fabrics obtained in examples 1 and 2 and comparative examples 1 and 2 were measured using an LFY-207 auto-stiffness tester.
Example 1
A waterproof high-breathability medical fabric mainly comprises the following components in parts by weight:
1 part of fabric base cloth A and 1 part of fabric base cloth B.
The preparation method of the waterproof high-breathability medical fabric comprises the following steps:
(1) placing the nano silicon dioxide in a vacuum drying oven, drying for 12h in vacuum at 60 ℃, mixing the dried nano silicon dioxide with methyl acrylate, taking methanol as a solvent, wherein the mass ratio of the nano silicon dioxide to the methyl acrylate in the methanol is 2: 1: 20, adding the mixture into a three-neck flask, stirring and reacting for 6 hours, then carrying out vacuum filtration, and drying to constant weight to obtain a modified silicon dioxide blank; adding ethylenediamine into the modified silicon dioxide blank, mixing, taking methanol as a solvent, and mixing the modified silicon dioxide blank and the ethylenediamine in a mass ratio of the methanol of 2: 1: 20, stirring and reacting for 6 hours, then carrying out vacuum filtration, and drying to constant weight to obtain modified silicon dioxide;
(2) the silk is boiled in 0.5% sodium carbonate solution with the mass 10 times of that of the silk for 60min at 100 ℃, the boiled silk fibroin is washed for 3 times by distilled water and then added into calcium chloride ethanol solution with the mass 10 times of that of the silk fibroin, and the calcium chloride ethanol solution is calcium chloride, ethanol and deionized water according to the mass ratio of 1: 2: 8, stirring and dissolving, putting into a dialysis bag, dialyzing with distilled water at room temperature for 3 days, and concentrating to obtain a fibroin protein water solution with the mass fraction of 34%;
(3) uniformly mixing the modified silicon dioxide prepared in the step (1) with the silk fibroin aqueous solution prepared in the step (2), wherein the mass ratio of the modified silicon dioxide to the silk fibroin aqueous solution is 1: 8, standing for 30min to prepare a modified silk fibroin electrostatic spinning solution; carrying out electrostatic spinning on the modified silk fibroin electrostatic spinning solution to prepare modified silk fibroin fibers; fumigating modified silk fibroin fibers at 100 ℃, using water as fumigation liquid, immersing the fumigated silk fibroin fibers in a dopamine solution with the mass fraction of 20% which is 10 times that of the modified silk fibroin fibers, taking out the fumigated silk fibroin fibers after 20min, drying the fumigated silk fibroin fibers, and weaving the fumigated silk fibroin fibers into fabric;
(4) heating a stearic acid aqueous solution with the mass fraction of 20% to boil, adding cotton fibers with the mass 0.05 time that of the stearic acid aqueous solution, stirring at a high speed of 2000rpm for 10min, drying after stirring, and weaving into fabric base cloth B;
(5) cutting the fabric base cloth A and the fabric base cloth B into pieces with the same size, laminating, standing for 3h, and pressing by using a hot press at the temperature of 150 ℃ and the pressure of 1Mpa to prepare a finished product.
Example 2
A waterproof high-breathability medical fabric mainly comprises the following components in parts by weight:
2 parts of fabric base cloth A and 2 parts of fabric base cloth B.
The preparation method of the waterproof high-breathability medical fabric comprises the following steps:
(1) placing the nano silicon dioxide in a vacuum drying oven, drying for 12h in vacuum at 60 ℃, mixing the dried nano silicon dioxide with methyl acrylate, taking methanol as a solvent, wherein the mass ratio of the nano silicon dioxide to the methyl acrylate in the methanol is 2: 1: 20, adding the mixture into a three-neck flask, stirring and reacting for 8 hours, then carrying out vacuum filtration, and drying to constant weight to obtain a modified silicon dioxide blank; adding ethylenediamine into the modified silicon dioxide blank, mixing, taking methanol as a solvent, and mixing the modified silicon dioxide blank and the ethylenediamine in a mass ratio of the methanol of 2: 1: 20, stirring and reacting for 8 hours, then carrying out vacuum filtration, and drying to constant weight to obtain modified silicon dioxide;
(2) the silk is boiled in 0.5% sodium carbonate solution 20 times of the silk mass for 60min at 100 ℃, the boiled silk fibroin is washed for 5 times by distilled water and then added into calcium chloride ethanol solution 15 times of the silk fibroin mass, the calcium chloride ethanol solution is calcium chloride, ethanol and deionized water according to the mass ratio of 1: 2: 8, stirring and dissolving, putting into a dialysis bag, dialyzing with distilled water at room temperature for 3 days, and concentrating to obtain a fibroin protein water solution with the mass fraction of 34%;
(3) uniformly mixing the modified silicon dioxide prepared in the step (1) with the silk fibroin aqueous solution prepared in the step (2), wherein the mass ratio of the modified silicon dioxide to the silk fibroin aqueous solution is 1: 10, standing for 30min to prepare a modified silk fibroin electrostatic spinning solution; carrying out electrostatic spinning on the modified silk fibroin electrostatic spinning solution to prepare modified silk fibroin fibers; fumigating modified silk fibroin fibers at 100 ℃, using water as fumigation liquid, immersing the fumigated silk fibroin fibers in a dopamine solution with the mass fraction of 20% which is 10 times that of the modified silk fibroin fibers, fishing out and drying the fumigated silk fibroin fibers after 30min, and weaving the fumigated silk fibroin fibers into fabric;
(4) heating a stearic acid aqueous solution with the mass fraction of 20% to boiling, adding cotton fibers with the mass 0.05 time that of the stearic acid aqueous solution, stirring at a high speed of 3000rpm for 15min, drying after stirring, and weaving into fabric base cloth B;
(5) cutting the fabric base cloth A and the fabric base cloth B into pieces with the same size, laminating, standing for 5h, and pressing by using a hot press at the temperature of 180 ℃ and the pressure of 5Mpa to prepare a finished product.
Comparative example 1
A waterproof high-breathability medical fabric mainly comprises the following components in parts by weight:
1 part of fabric base cloth A and 1 part of fabric base cloth B.
The preparation method of the waterproof high-breathability medical fabric comprises the following steps:
(1) placing the nano silicon dioxide in a vacuum drying oven, drying for 12h in vacuum at 60 ℃, mixing the dried nano silicon dioxide with methyl acrylate, taking methanol as a solvent, wherein the mass ratio of the nano silicon dioxide to the methyl acrylate in the methanol is 2: 1: 20, adding the mixture into a three-neck flask, stirring and reacting for 6 hours, then carrying out vacuum filtration, and drying to constant weight to obtain a modified silicon dioxide blank; adding ethylenediamine into the modified silicon dioxide blank, mixing, taking methanol as a solvent, and mixing the modified silicon dioxide blank and the ethylenediamine in a mass ratio of the methanol of 2: 1: 20, stirring and reacting for 6 hours, then carrying out vacuum filtration, and drying to constant weight to obtain modified silicon dioxide;
(2) the silk is boiled in 0.5% sodium carbonate solution with the mass 10 times of that of the silk for 60min at 100 ℃, the boiled silk fibroin is washed for 3 times by distilled water and then added into calcium chloride ethanol solution with the mass 10 times of that of the silk fibroin, and the calcium chloride ethanol solution is calcium chloride, ethanol and deionized water according to the mass ratio of 1: 2: 8, stirring and dissolving, putting into a dialysis bag, dialyzing with distilled water at room temperature for 3 days, and concentrating to obtain a fibroin protein water solution with the mass fraction of 34%;
(3) uniformly mixing the modified silicon dioxide prepared in the step (1) with the silk fibroin aqueous solution prepared in the step (2), wherein the mass ratio of the modified silicon dioxide to the silk fibroin aqueous solution is 1: 8, standing for 30min to prepare a modified silk fibroin electrostatic spinning solution; carrying out electrostatic spinning on the modified silk fibroin electrostatic spinning solution to prepare modified silk fibroin fibers; fumigating the modified silk fibroin fibers at the temperature of 100 ℃, using fumigation liquid as water, drying after fumigating, and weaving into fabric;
(4) heating a stearic acid aqueous solution with the mass fraction of 20% to boil, adding cotton fibers with the mass 0.05 time that of the stearic acid aqueous solution, stirring at a high speed of 2000rpm for 10min, drying after stirring, and weaving into fabric base cloth B;
(5) cutting the fabric base cloth A and the fabric base cloth B into pieces with the same size, laminating, standing for 3h, and pressing by using a hot press at the temperature of 150 ℃ and the pressure of 1Mpa to prepare a finished product.
Comparative example 2
A waterproof high-breathability medical fabric mainly comprises the following components in parts by weight:
1 part of fabric base cloth A and 1 part of fabric base cloth B.
The preparation method of the waterproof high-breathability medical fabric comprises the following steps:
(1) placing the nano silicon dioxide in a vacuum drying oven, drying for 12h in vacuum at 60 ℃, mixing the dried nano silicon dioxide with methyl acrylate, taking methanol as a solvent, wherein the mass ratio of the nano silicon dioxide to the methyl acrylate in the methanol is 2: 1: 20, adding the mixture into a three-neck flask, stirring and reacting for 6 hours, then carrying out vacuum filtration, and drying to constant weight to obtain a modified silicon dioxide blank; adding ethylenediamine into the modified silicon dioxide blank, mixing, taking methanol as a solvent, and mixing the modified silicon dioxide blank and the ethylenediamine in a mass ratio of the methanol of 2: 1: 20, stirring and reacting for 6 hours, then carrying out vacuum filtration, and drying to constant weight to obtain modified silicon dioxide;
(2) the silk is boiled in 0.5% sodium carbonate solution with the mass 10 times of that of the silk for 60min at 100 ℃, the boiled silk fibroin is washed for 3 times by distilled water and then added into calcium chloride ethanol solution with the mass 10 times of that of the silk fibroin, and the calcium chloride ethanol solution is calcium chloride, ethanol and deionized water according to the mass ratio of 1: 2: 8, stirring and dissolving, putting into a dialysis bag, dialyzing with distilled water at room temperature for 3 days, and concentrating to obtain a fibroin protein water solution with the mass fraction of 34%;
(3) uniformly mixing the modified silicon dioxide prepared in the step (1) with the silk fibroin aqueous solution prepared in the step (2), wherein the mass ratio of the modified silicon dioxide to the silk fibroin aqueous solution is 1: 8, standing for 30min to prepare a modified silk fibroin electrostatic spinning solution; carrying out electrostatic spinning on the modified silk fibroin electrostatic spinning solution to prepare modified silk fibroin fibers; fumigating modified silk fibroin fibers at 100 ℃, using water as fumigation liquid, immersing the fumigated silk fibroin fibers in a dopamine solution with the mass fraction of 20% which is 10 times that of the modified silk fibroin fibers, taking out the fumigated silk fibroin fibers after 20min, drying the fumigated silk fibroin fibers, and weaving the fumigated silk fibroin fibers into fabric;
(4) weaving cotton fibers into fabric base cloth B;
(5) cutting the fabric base cloth A and the fabric base cloth B into pieces with the same size, laminating, standing for 3h, and pressing by using a hot press at the temperature of 150 ℃ and the pressure of 1Mpa to prepare a finished product.
Effect example 1
The following table 1 shows the air permeability analysis results of the waterproof highly air permeable medical fabrics of examples 1 and 2 of the present invention and comparative example 1.
TABLE 1
Air permeability (mm/s)
Example 1 1449
Example 2 1447
Comparative example 1 1325
Effect example 2
The following table 2 shows the results of the analysis of the water resistance of the waterproof highly breathable medical fabrics of examples 1 and 2 and comparative example 2 according to the present invention
TABLE 2
Water contact Angle (%)
Example 1 33.1
Example 2 33.5
Comparative example 1 30.7
Comparative example 2 17.6
Effect example 3
The following table 3 shows the softness analysis results of the waterproof highly breathable medical fabrics of examples 1 and 2 and comparative examples 1 and 2.
TABLE 3
Stiffness of the sheet
Example 1 43
Example 2 44
Comparative example 1 32
Comparative example 2 29
Compared with the experimental data of the comparative example 1 and the examples 1 and 2 in the table 1, it can be obviously found that the modified silk fibroin fibers in the fabric base cloth a prepared when the waterproof and highly breathable medical fabric is prepared can be more breathable after being soaked in dopamine, which indicates that the modified silica suspended on the silk fibroin fibers can be firmly adhered to the surface of the silk fibroin after soaking, so that the pores are reduced, and the effect of high-efficiency ventilation is achieved; compared with the experimental data of the embodiment 1 and the embodiment 2 and the comparative example 2 in the table 2, it can be obviously found that when the waterproof high-permeability medical fabric is prepared, the stearic acid is used for modifying the cotton fiber when the fabric base cloth B is prepared, the cotton fiber can be neutralized with the stearic acid on the fabric base cloth A and the hyperbranched polyamide grafted by the modified silica, the three-dimensional reticular hyperbranched polyamide wound in the chainless inner winding is converted into a three-dimensional reticular structure with inner winding due to the addition of the stearic acid to connect the two fabric base cloths, and the pores between the two fabric base cloths are filled into the dense reticular layer; under the humid condition, even if the outer side of the fabric absorbs a small amount of water, the water is directly dispersed by the compact reticular layer to form a water layer in the fabric, so that the water and other pollutants are prevented from entering the fabric to cause damage, and the product has waterproofness; compared with the experimental data of the examples 1 and 2 and the comparative examples 1 and 2 in the table 2, it can be obviously found that the two fabric base cloths are connected through dopamine treatment and the formed internally-wound three-dimensional net-shaped structure when the waterproof high-breathability medical fabric is prepared, and the fabric is softer by filling the pores between the two fabric base cloths into the belt-shaped dense net-shaped layer.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (10)

1. The waterproof high-breathability medical fabric is characterized by mainly comprising the following raw material components in parts by weight: 1-2 parts of fabric base cloth A and 1-2 parts of fabric base cloth B;
the fabric base cloth A is formed by weaving modified silk fibroin fibers;
the fabric base cloth B is formed by weaving modified cotton fibers.
2. The waterproof highly-breathable medical fabric according to claim 1, wherein the modified silk fibroin fibers are prepared by blending modified silicon dioxide and silk fibroin, performing electrostatic spinning, performing high-temperature treatment, and soaking in a dopamine solution.
3. The waterproof highly breathable medical fabric as claimed in claim 2, wherein the modified cotton fiber is prepared by grafting stearic acid on cotton fiber.
4. The preparation method of the waterproof high-breathability medical fabric is characterized by comprising the following steps: the preparation method comprises the steps of modified silicon dioxide preparation, modified silk fibroin fiber preparation, fabric base cloth A preparation, modified cotton fiber preparation, fabric base cloth B preparation and preparation of waterproof high-breathability medical fabric.
5. The preparation method of the waterproof high-breathability medical fabric according to claim 4, characterized by comprising the following specific steps:
(1) placing nano silicon dioxide in a vacuum drying oven, drying for 12h at 60 ℃ in vacuum, mixing the dried nano silicon dioxide with methyl acrylate, adding the mixture into a three-neck flask by taking methanol as a solvent, carrying out vacuum filtration after stirring and reacting for 6-8 h, and drying to constant weight to obtain a modified silicon dioxide blank; adding ethylenediamine into the modified silicon dioxide blank, mixing, stirring and reacting for 6-8 h by taking methanol as a solvent, performing vacuum filtration, and drying to constant weight to obtain modified silicon dioxide;
(2) boiling silk in 0.5% sodium carbonate solution at 100 ℃ for 60min, washing the boiled silk fibroin with distilled water for 3-5 times, adding the obtained product into an ethanol solution of calcium chloride 10-15 times the mass of the silk fibroin, stirring and dissolving the obtained product, then putting the obtained product into a dialysis bag, dialyzing the obtained product with distilled water at room temperature for 3 days, and concentrating the obtained product to obtain a silk fibroin water solution with the mass fraction of 34%;
(3) uniformly mixing the modified silicon dioxide prepared in the step (1) with the silk fibroin aqueous solution prepared in the step (2), and standing for 30-50 min to prepare a modified silk fibroin electrostatic spinning solution; carrying out electrostatic spinning on the modified silk fibroin electrostatic spinning solution to prepare modified silk fibroin fibers; fumigating the modified silk fibroin fibers, soaking the fumigated silk fibroin fibers in a dopamine solution with the mass fraction of 20-30%, taking out the fumigated silk fibroin fibers after 20-30 min, drying the fumigated silk fibroin fibers, and weaving the fumigated silk fibroin fibers into fabric;
(4) heating a stearic acid aqueous solution with the mass fraction of 20% to boiling, adding cotton fibers, stirring at a high speed, drying after stirring, and weaving into a fabric base fabric B;
(5) and cutting the fabric base cloth A and the fabric base cloth B into the same size, attaching the fabric base cloth A and the fabric base cloth B, standing for 3-5 hours, and pressing by using a hot press to prepare a finished product.
6. The preparation method of the waterproof high-breathability medical fabric according to claim 5, wherein in the step (1): the mass ratio of the nano silicon dioxide to the methyl acrylate in the methanol is 2: 1: 20; the mass ratio of the modified silicon dioxide blank to the ethylenediamine in the methanol is 2: 1: 20.
7. the preparation method of the waterproof highly-breathable medical fabric according to claim 5, wherein in the step (2): the mass ratio of the silk to the sodium carbonate solution is 1: 10-1: 20; the ethanol solution of calcium chloride is calcium chloride, ethanol and deionized water according to the mass ratio of 1: 2: 8, mixing the components.
8. The preparation method of the waterproof highly-breathable medical fabric according to claim 5, wherein in the step (3): the mass ratio of the modified silicon dioxide to the silk fibroin aqueous solution is 1: 8-1: 10; the fumigation temperature is 100 ℃, and the fumigation liquid is water; the volume ratio of the modified silk fibroin fibers to the dopamine solution is 1: 10.
9. the preparation method of the waterproof highly-breathable medical fabric according to claim 5, wherein in the step (4): the mass ratio of the cotton fibers to the stearic acid aqueous solution is 1: 20-1: 30, of a nitrogen-containing gas; and during high-speed stirring, the rotating speed is 2000-3000 rpm, and the time is 10-15 min.
10. The preparation method of the waterproof highly-breathable medical fabric according to claim 5, wherein in the step (5): the temperature of the hot press is 150-180 ℃ and the pressure is 1-5 Mpa during pressing.
CN202110824591.4A 2021-07-21 2021-07-21 Waterproof high-breathability medical fabric and preparation method thereof Pending CN113373538A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114703650A (en) * 2022-04-13 2022-07-05 邵建平 Smooth skin-care fabric and preparation method thereof
CN115142259A (en) * 2022-07-05 2022-10-04 杭州鑫马纺织有限公司 High-density full-silk anti-velvet jacquard fabric
CN116536911A (en) * 2023-05-06 2023-08-04 东莞市安茉服饰有限公司 Waterproof breathable nylon fabric and preparation method thereof

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潘才元: "《高分子化学》", vol. 2, 31 July 2012, pages: 55 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114703650A (en) * 2022-04-13 2022-07-05 邵建平 Smooth skin-care fabric and preparation method thereof
CN115142259A (en) * 2022-07-05 2022-10-04 杭州鑫马纺织有限公司 High-density full-silk anti-velvet jacquard fabric
CN116536911A (en) * 2023-05-06 2023-08-04 东莞市安茉服饰有限公司 Waterproof breathable nylon fabric and preparation method thereof
CN116536911B (en) * 2023-05-06 2024-01-26 浙江凯尼威针织服饰有限公司 Waterproof breathable nylon fabric and preparation method thereof

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Application publication date: 20210910