CN111910427A - Antistatic non-woven fabric and preparation method thereof - Google Patents
Antistatic non-woven fabric and preparation method thereof Download PDFInfo
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- CN111910427A CN111910427A CN202010762897.7A CN202010762897A CN111910427A CN 111910427 A CN111910427 A CN 111910427A CN 202010762897 A CN202010762897 A CN 202010762897A CN 111910427 A CN111910427 A CN 111910427A
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- woven fabric
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- polypropylene
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- 239000004745 nonwoven fabric Substances 0.000 title claims abstract description 162
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- -1 polypropylene Polymers 0.000 claims abstract description 67
- 239000004743 Polypropylene Substances 0.000 claims abstract description 64
- 229920001155 polypropylene Polymers 0.000 claims abstract description 64
- 238000002156 mixing Methods 0.000 claims abstract description 36
- 229910052709 silver Inorganic materials 0.000 claims abstract description 36
- 239000004332 silver Substances 0.000 claims abstract description 36
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000000835 fiber Substances 0.000 claims abstract description 34
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 claims abstract description 32
- VYFYYTLLBUKUHU-UHFFFAOYSA-N dopamine Chemical compound NCCC1=CC=C(O)C(O)=C1 VYFYYTLLBUKUHU-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229910001961 silver nitrate Inorganic materials 0.000 claims abstract description 16
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229960003638 dopamine Drugs 0.000 claims abstract description 14
- 229910052700 potassium Inorganic materials 0.000 claims abstract description 14
- 239000011591 potassium Substances 0.000 claims abstract description 14
- 238000006243 chemical reaction Methods 0.000 claims description 33
- 230000010355 oscillation Effects 0.000 claims description 32
- 238000007598 dipping method Methods 0.000 claims description 26
- 239000000203 mixture Substances 0.000 claims description 24
- 238000007599 discharging Methods 0.000 claims description 20
- 238000010438 heat treatment Methods 0.000 claims description 18
- 238000005470 impregnation Methods 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 10
- 238000000465 moulding Methods 0.000 claims description 10
- 238000005303 weighing Methods 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 8
- 238000005507 spraying Methods 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- 238000009987 spinning Methods 0.000 claims description 5
- 238000007731 hot pressing Methods 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 6
- 239000002184 metal Substances 0.000 abstract description 6
- 230000009920 chelation Effects 0.000 abstract description 4
- 229920001690 polydopamine Polymers 0.000 abstract description 4
- 238000002791 soaking Methods 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 3
- 230000009471 action Effects 0.000 abstract description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 2
- 229910021645 metal ion Inorganic materials 0.000 abstract description 2
- 230000003647 oxidation Effects 0.000 abstract description 2
- 238000007254 oxidation reaction Methods 0.000 abstract description 2
- 229910052760 oxygen Inorganic materials 0.000 abstract description 2
- 239000001301 oxygen Substances 0.000 abstract description 2
- 238000006116 polymerization reaction Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 239000004744 fabric Substances 0.000 description 18
- 238000012360 testing method Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 229920002972 Acrylic fiber Polymers 0.000 description 1
- 229920006052 Chinlon® Polymers 0.000 description 1
- 229920002334 Spandex Polymers 0.000 description 1
- 229920004933 Terylene® Polymers 0.000 description 1
- 241001122767 Theaceae Species 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000004746 geotextile Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000002649 leather substitute Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000004750 melt-blown nonwoven Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- 239000004759 spandex Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/83—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with metals; with metal-generating compounds, e.g. metal carbonyls; Reduction of metal compounds on textiles
-
- 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
- D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F6/04—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins
- D01F6/06—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins from polypropylene
-
- 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
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/005—Synthetic yarns or filaments
- D04H3/007—Addition polymers
-
- 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
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
- D04H3/10—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically
-
- 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
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
- D04H3/14—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
-
- 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
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/18—Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/20—Polyalkenes, polymers or copolymers of compounds with alkenyl groups bonded to aromatic groups
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Treatment Of Fiber Materials (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention relates to an antistatic non-woven fabric and a preparation method thereof, and belongs to the technical field of non-woven fabric preparation. The invention takes polypropylene as raw material, the polypropylene is melted and softened and then is spun to obtain polypropylene fiber yarn, the polypropylene fiber yarn is hot pressed to obtain a self-made non-woven fabric blank, then mixing and soaking the non-woven fabric blank body and the multi-half o solution, carrying out oxidation auto-polymerization reaction under the action of dissolved oxygen of the dopamine solution in water to obtain a layer of poly-dopamine film with metal ion chelation, closely adhering to the surface of the non-woven fabric blank body, then mixing and soaking the modified non-woven fabric blank body and a silver nitrate solution, attaching the modified non-woven fabric blank body and the silver nitrate solution to the surface of the non-woven fabric by utilizing chelation of polydopamine, finally reducing silver ions by a strong reducing potassium borohydride solution to produce a silver simple substance, attaching the silver simple substance to the surface of the non-woven fabric, the metal silver has excellent conductivity, and the introduction of the metal silver greatly improves the antistatic performance of the non-woven fabric, so that the metal silver has wide application prospect.
Description
Technical Field
The invention relates to an antistatic non-woven fabric and a preparation method thereof, and belongs to the technical field of non-woven fabric preparation.
Background
Currently, nonwoven fabrics, also known as nonwovens, are composed of oriented or random fibers. It is called a cloth because of its appearance and certain properties. The polypropylene fiber is mainly produced by taking polypropylene granules as raw materials through a continuous one-step method of high-temperature melting, spinning, laying a line and hot-pressing coiling. The non-woven fabric has no warp and weft, is very convenient to cut and sew, is light in weight and easy to shape, and is popular with hand fans.
The non-woven fabric comprises terylene, polypropylene fiber, chinlon, spandex, acrylic fiber and the like according to components; the different components will have distinct nonwoven styles. Spun-bonded fabrics, which are commonly referred to as polyester spun-bonded and polypropylene spun-bonded; the styles of the two fabrics are very close to each other and can be distinguished only through a high-temperature test. The production process comprises the following steps: spunlace nonwoven fabrics, heat seal nonwoven fabrics, pulp air-laid nonwoven fabrics, wet process nonwoven fabrics, spun-bonded nonwoven fabrics, melt-blown nonwoven fabrics, needle-punched nonwoven fabrics, stitch-bonded nonwoven fabrics, hydrophilic nonwoven fabrics.
Nonwoven products are used in many ways, nonwoven fabrics for medical and hygiene purposes: surgical gowns, protective clothing, sterilization wraps, masks, diapers, household wipes, wiping cloths, wet face towels, magic towels, soft tissue rolls, beauty products, sanitary napkins, sanitary pads, disposable sanitary cloths, and the like. Non-woven fabrics for home decoration: wall cloth, tablecloth, bed sheets, bedspreads and the like. Non-woven fabric for clothing: lining, adhesive lining, flocculus, shaped cotton, various synthetic leather base fabrics and the like. Industrial non-woven fabric; the waterproof material comprises a base material of a roof waterproof coiled material and an asphalt tile, a reinforcing material, a polishing material, a filtering material, an insulating material, a cement packaging bag, geotextile, coating cloth and the like. Non-woven fabrics for agricultural use: crop protection cloth, seedling raising cloth, irrigation cloth, a heat preservation curtain and the like. Other non-woven fabrics: space cotton, heat-insulating and sound-insulating materials, oil-absorbing felt, smoke filter tips, tea bags, shoe materials and the like. Packaging: the bag comprises a composite cement bag, a bag lining cloth, a packaging base lining, quilt wadding, a storage bag and a movable jacquard bag cloth. The automotive industry: the heat insulation cushion comprises a waste textile insulation heat felt, a shockproof felt, a ceiling, a cushion lining, a carpet, a vehicle door lining, a vehicle filter element and a formed cushion. Civil engineering, construction: reinforcing, filtering, felt base cloth, drainage plates, roof waterproof materials, railways, highways, dikes, slopes, harbors, sewers, heat protection, separation and drainage. Other uses are as follows: carrier rocket, missile head heat-proof cone, tail nozzle throat lining, high-grade paper money printing paper, aerospace plane heat-resistant tile, map cloth, wall calendar cloth, artificial cloth, canvas and the like.
At present, most non-woven fabrics are made of insulating materials, and fluffing is easy to occur after the non-woven fabrics are used for a certain time, so that static electricity is stored in the non-woven fabrics and is difficult to release. Therefore, the invention of the non-woven fabric with good antistatic performance has positive significance to the technical field of textile preparation.
In view of the above-mentioned drawbacks, the present designer has made active research and innovation to create an antistatic non-woven fabric and a method for preparing the same, so that the antistatic non-woven fabric has industrial value.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide an antistatic non-woven fabric and a preparation method thereof.
The invention 1 relates to an antistatic non-woven fabric, which is prepared by mixing and reacting a silver-loaded non-woven fabric and a potassium borohydride solution,
the silver-loaded non-woven fabric is prepared by reacting a modified non-woven fabric with a silver nitrate solution;
the modified non-woven fabric is prepared by reacting a non-woven fabric blank with a dopamine solution;
the non-woven fabric blank is prepared by self-made polypropylene fibers through hot pressing;
the self-made polypropylene fiber is prepared by polypropylene spinning.
A preparation method of antistatic non-woven fabric comprises the following specific preparation steps:
(1) weighing polypropylene, heating to soften, and spinning to obtain self-made polypropylene fiber;
(2) carrying out hot press molding on the self-made polypropylene fiber, cooling and discharging to obtain a self-made non-woven fabric blank;
(3) mixing and dipping the self-made non-woven fabric blank body and a dopamine solution, and taking out the dipped non-woven fabric after dipping is finished to obtain a modified non-woven fabric;
(4) mixing, vibrating and dipping the modified non-woven fabric and a silver nitrate solution to obtain a silver-loaded non-woven fabric;
(5) and mixing and reacting the silver-loaded non-woven fabric and a potassium borohydride solution, and then discharging to obtain the antistatic non-woven fabric.
Further, the preparation method comprises the following specific steps:
(1) weighing polypropylene, heating to soften the polypropylene, putting the softened polypropylene into a spinneret plate, and carrying out spinneret spraying under a pressure condition to obtain a self-made polypropylene fiber;
(2) placing the self-made polypropylene fiber in a hot press, carrying out hot press molding under the conditions of temperature and pressure, cooling and discharging to obtain a self-made non-woven fabric blank;
(3) mixing the self-made non-woven fabric blank body with the dopamine solution, putting the mixture into an ultrasonic oscillator, carrying out ultrasonic oscillation dipping treatment, and taking out the dipped non-woven fabric after the ultrasonic oscillation dipping is finished to obtain a modified non-woven fabric;
(4) mixing the obtained modified non-woven fabric and a silver nitrate solution, putting the mixture into a beaker, putting the beaker on a shaking table, carrying out oscillation dipping reaction, and taking out the dipped non-woven fabric after the oscillation dipping reaction is finished to obtain a silver-loaded non-woven fabric;
(5) and mixing the silver-loaded non-woven fabric and the potassium borohydride solution, putting the mixture into a reaction kettle, sealing the reaction kettle, pressurizing, heating, raising the temperature, stirring, reacting, and discharging to obtain the antistatic non-woven fabric.
Further, the preparation method comprises the following specific steps:
(1) weighing 100-120 g of polypropylene, heating to 165-175 ℃ to soften the polypropylene, putting the softened polypropylene into a spinneret plate, and carrying out spinneret spraying under the pressure of 0.4-0.6 MPa to obtain a self-made polypropylene fiber;
(2) placing the self-made polypropylene fiber into a hot press, carrying out hot press molding under the conditions that the temperature is 100-120 ℃ and the pressure is 1-3 MPa, cooling and discharging to obtain a self-made non-woven fabric blank;
(3) mixing the self-made non-woven fabric blank body with a dopamine solution with the concentration of 0.5mmol/L, putting the mixture into an ultrasonic oscillator, carrying out ultrasonic oscillation dipping treatment for 1-2 hours at the frequency of 35-45 kHz, and taking out the dipped non-woven fabric after the ultrasonic oscillation dipping is finished, namely the modified non-woven fabric;
(4) mixing the modified non-woven fabric and a silver nitrate solution with the mass fraction of 30% according to the mass ratio of 1:10, then putting the mixture into a beaker, then placing the beaker on a shaking table, carrying out oscillation impregnation reaction for 30-40 min, and taking out the impregnated non-woven fabric after the oscillation impregnation reaction is finished, thus obtaining the silver-loaded non-woven fabric;
(5) and mixing the silver-loaded non-woven fabric with a 30% potassium borohydride solution by mass, putting the mixture into a reaction kettle, sealing the reaction kettle, pressurizing to 0.5-0.7 MPa, heating to 100-110 ℃, stirring to react for 1-2 hours, and discharging to obtain the antistatic non-woven fabric.
By the scheme, the invention at least has the following advantages:
the invention takes polypropylene as raw material, the polypropylene is melted and softened and then is spun to obtain polypropylene fiber yarn, the polypropylene fiber yarn is hot pressed to obtain a self-made non-woven fabric blank, then mixing and soaking the non-woven fabric blank body and the multi-half o solution, carrying out oxidation auto-polymerization reaction under the action of dissolved oxygen of the dopamine solution in water to obtain a layer of poly-dopamine film with metal ion chelation, closely adhering to the surface of the non-woven fabric blank body, then mixing and soaking the modified non-woven fabric blank body and a silver nitrate solution, attaching the modified non-woven fabric blank body and the silver nitrate solution to the surface of the non-woven fabric by utilizing chelation of polydopamine, finally reducing silver ions by a strong reducing potassium borohydride solution to produce a silver simple substance, attaching the silver simple substance to the surface of the non-woven fabric, the metal silver has excellent conductivity, and the introduction of the metal silver greatly improves the antistatic performance of the non-woven fabric, so that the metal silver has wide application prospect.
The foregoing is a summary of the present invention, and in order to provide a clear understanding of the technical means of the present invention and to be implemented in accordance with the present specification, the following is a detailed description of the preferred embodiments of the present invention.
Detailed Description
The following examples are given to further illustrate the embodiments of the present invention. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
(1) Weighing 100-120 g of polypropylene, heating to 165-175 ℃ to soften the polypropylene, putting the softened polypropylene into a spinneret plate, and carrying out spinneret spraying under the pressure of 0.4-0.6 MPa to obtain a self-made polypropylene fiber;
(2) placing the self-made polypropylene fiber into a hot press, carrying out hot press molding under the conditions that the temperature is 100-120 ℃ and the pressure is 1-3 MPa, cooling and discharging to obtain a self-made non-woven fabric blank;
(3) mixing the self-made non-woven fabric blank body with a dopamine solution with the concentration of 0.5mmol/L, putting the mixture into an ultrasonic oscillator, carrying out ultrasonic oscillation dipping treatment for 1-2 hours at the frequency of 35-45 kHz, and taking out the dipped non-woven fabric after the ultrasonic oscillation dipping is finished, namely the modified non-woven fabric;
(4) mixing the modified non-woven fabric and a silver nitrate solution with the mass fraction of 30% according to the mass ratio of 1:10, then putting the mixture into a beaker, then placing the beaker on a shaking table, carrying out oscillation impregnation reaction for 30-40 min, and taking out the impregnated non-woven fabric after the oscillation impregnation reaction is finished, thus obtaining the silver-loaded non-woven fabric;
(5) and mixing the silver-loaded non-woven fabric with a 30% potassium borohydride solution by mass, putting the mixture into a reaction kettle, sealing the reaction kettle, pressurizing to 0.5-0.7 MPa, heating to 100-110 ℃, stirring to react for 1-2 hours, and discharging to obtain the antistatic non-woven fabric.
Example 1
(1) Weighing 100g of polypropylene, heating to 165 ℃ to soften the polypropylene, putting the softened polypropylene into a spinneret plate, and carrying out spinneret spraying under the pressure of 0.4MPa to obtain self-made polypropylene fibers;
(2) placing the self-made polypropylene fiber in a hot press, carrying out hot press molding under the conditions that the temperature is 100 ℃ and the pressure is 1MPa, cooling and discharging to obtain a self-made non-woven fabric blank;
(3) mixing the self-made non-woven fabric blank body with 0.5mmol/L dopamine solution, putting the mixture into an ultrasonic oscillator, carrying out ultrasonic oscillation dipping treatment for 1 hour at the frequency of 35kHz, and taking out the dipped non-woven fabric after the ultrasonic oscillation dipping is finished, namely obtaining the modified non-woven fabric; a
(4) Mixing the modified non-woven fabric and a silver nitrate solution with the mass fraction of 30% according to the mass ratio of 1:10, then putting the mixture into a beaker, then placing the beaker on a shaking table, carrying out oscillation impregnation reaction for 30min, and taking out the impregnated non-woven fabric after the oscillation impregnation reaction is finished, thus obtaining the silver-loaded non-woven fabric;
(5) and mixing the silver-loaded non-woven fabric with a 30% potassium borohydride solution by mass, putting the mixture into a reaction kettle, sealing the reaction kettle, pressurizing to 0.5MPa, heating to 100 ℃, stirring for 1 hour, and discharging to obtain the antistatic non-woven fabric.
Example 2
(1) Weighing 110g of polypropylene, heating to 170 ℃ to soften the polypropylene, putting the softened polypropylene into a spinneret plate, and carrying out spinneret spraying under the pressure of 0.5MPa to obtain self-made polypropylene fibers;
(2) placing the self-made polypropylene fiber in a hot press, carrying out hot press molding under the conditions that the temperature is 110 ℃ and the pressure is 2MPa, cooling and discharging to obtain a self-made non-woven fabric blank;
(3) mixing the self-made non-woven fabric blank body with a dopamine solution with the concentration of 0.5mmol/L, putting the mixture into an ultrasonic oscillator, carrying out ultrasonic oscillation dipping treatment for 12 hours at the frequency of 40kHz, and taking out the dipped non-woven fabric after the ultrasonic oscillation dipping is finished, namely obtaining a modified non-woven fabric;
(4) mixing the modified non-woven fabric and a silver nitrate solution with the mass fraction of 30% according to the mass ratio of 1:10, then putting the mixture into a beaker, then placing the beaker on a shaking table, carrying out oscillation impregnation reaction for 35min, and taking out the impregnated non-woven fabric after the oscillation impregnation reaction is finished, thus obtaining the silver-loaded non-woven fabric;
(5) and mixing the silver-loaded non-woven fabric with a 30% potassium borohydride solution by mass, putting the mixture into a reaction kettle, sealing the reaction kettle, pressurizing to 0.6MPa, heating to 105 ℃, stirring for reaction for 1 hour, and discharging to obtain the antistatic non-woven fabric.
Example 3
(1) Weighing 120g of polypropylene, heating to 175 ℃ to soften the polypropylene, putting the softened polypropylene into a spinneret plate, and carrying out spinneret spraying under the pressure of 0.6MPa to obtain self-made polypropylene fibers;
(2) placing the self-made polypropylene fiber in a hot press, carrying out hot press molding under the conditions that the temperature is 120 ℃ and the pressure is 3MPa, cooling and discharging to obtain a self-made non-woven fabric blank;
(3) mixing the self-made non-woven fabric blank body with a dopamine solution with the concentration of 0.5mmol/L, putting the mixture into an ultrasonic oscillator, carrying out ultrasonic oscillation dipping treatment for 2 hours at the frequency of 45kHz, and taking out the dipped non-woven fabric after the ultrasonic oscillation dipping is finished, namely obtaining a modified non-woven fabric;
(4) mixing the modified non-woven fabric and a silver nitrate solution with the mass fraction of 30% according to the mass ratio of 1:10, then putting the mixture into a beaker, then placing the beaker on a shaking table, carrying out oscillation impregnation reaction for 40min, and taking out the impregnated non-woven fabric after the oscillation impregnation reaction is finished, thus obtaining the silver-loaded non-woven fabric;
(5) and mixing the silver-loaded non-woven fabric with a 30% potassium borohydride solution by mass, putting the mixture into a reaction kettle, sealing the reaction kettle, pressurizing to 0.7MPa, heating to 110 ℃, stirring for 2 hours, and discharging to obtain the antistatic non-woven fabric.
Comparative example
The antistatic nonwoven fabric prepared by the invention and the antistatic nonwoven fabric in the comparative example were subjected to performance tests by using an antistatic nonwoven fabric produced by a well-known company as a comparative example, and the test results are shown in table 1:
1. the test method comprises the following steps:
the radial tensile strength test is carried out by referring to GB/T3923.1-2013, and the force required for breaking a single-layer fabric with the width of 5cm is tested;
testing the weft tensile strength by referring to GB/T3923.1-2013, and testing the force required for breaking a single-layer fabric with the width of 5 cm;
fiber shedding number test method: preparing the nonwoven fabrics of examples 1 to 3 and comparative examples, using a 19mm wide 3M adhesive tape, attaching the tape to the surface of each nonwoven fabric, pressing the tape in the longitudinal direction, peeling the tape, and counting the number of fibers falling off within the range of 20mm × 20mm under a microscope with a magnification of 40 times;
the friction voltage test is detected according to GB/T12703.5-2010;
detecting the surface resistance test by referring to a test method of GB/T24249-2009 appendix B;
and (3) appearance change test: the nonwoven fabrics of examples 1 to 3 and comparative example were put into use, and after two weeks, appearance change of each nonwoven fabric was observed.
TABLE 1 measurement results of nonwoven Fabric Properties
| Test items | Example 1 | Example 2 | Example 3 | Comparative example |
| Radial rupture Strength (N) | 25.86 | 25.99 | 26.30 | 15.12 |
| Weft breaking Strength (N) | 11.86 | 12.35 | 12.65 | 6.51 |
| Fiber shedding number (strip) | 28 | 25 | 22 | 80 |
| Friction voltage (V) | 16 | 15 | 13 | 90 |
| Surface resistance (omega) | 6.7×108 | 6.7×108 | 6.5×108 | 7.0×108 |
| Appearance change condition | Slight pilling on the surface and no damage | No pilling and no damage on the surface | No pilling and no damage on the surface | The surface is seriously pilling and obviously damaged |
Note: antistatic Property test (Friction Voltage, surface resistance) the sample was left at a temperature of 23 ℃ and a relative humidity of 52% for 24 h.
According to the data, the antistatic non-woven fabric prepared by the invention has the advantages of high strength, low friction voltage and surface resistance, good antistatic effect, no pilling on the surface after a period of use, no damage and wide application prospect.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, it should be noted that, for those skilled in the art, many modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (4)
1. The antistatic non-woven fabric is prepared by mixing and reacting silver-loaded non-woven fabric and potassium borohydride solution, and is characterized in that:
the silver-loaded non-woven fabric is prepared by reacting a modified non-woven fabric with a silver nitrate solution;
the modified non-woven fabric is prepared by reacting a non-woven fabric blank with a dopamine solution;
the non-woven fabric blank is prepared by self-made polypropylene fibers through hot pressing;
the self-made polypropylene fiber is prepared by polypropylene spinning.
2. The preparation method of the antistatic non-woven fabric is characterized by comprising the following specific preparation steps:
(1) weighing polypropylene, heating to soften, and spinning to obtain self-made polypropylene fiber;
(2) carrying out hot press molding on the self-made polypropylene fiber, cooling and discharging to obtain a self-made non-woven fabric blank;
(3) mixing and dipping the self-made non-woven fabric blank body and a dopamine solution, and taking out the dipped non-woven fabric after dipping is finished to obtain a modified non-woven fabric;
(4) mixing, vibrating and dipping the modified non-woven fabric and a silver nitrate solution to obtain a silver-loaded non-woven fabric;
(5) and mixing and reacting the silver-loaded non-woven fabric and a potassium borohydride solution, and then discharging to obtain the antistatic non-woven fabric.
3. The preparation method of the antistatic non-woven fabric according to claim 2, which is characterized by comprising the following specific preparation steps:
(1) weighing polypropylene, heating to soften the polypropylene, putting the softened polypropylene into a spinneret plate, and carrying out spinneret spraying under a pressure condition to obtain a self-made polypropylene fiber;
(2) placing the self-made polypropylene fiber in a hot press, carrying out hot press molding under the conditions of temperature and pressure, cooling and discharging to obtain a self-made non-woven fabric blank;
(3) mixing the self-made non-woven fabric blank body with the dopamine solution, putting the mixture into an ultrasonic oscillator, carrying out ultrasonic oscillation dipping treatment, and taking out the dipped non-woven fabric after the ultrasonic oscillation dipping is finished to obtain a modified non-woven fabric;
(4) mixing the obtained modified non-woven fabric and a silver nitrate solution, putting the mixture into a beaker, putting the beaker on a shaking table, carrying out oscillation dipping reaction, and taking out the dipped non-woven fabric after the oscillation dipping reaction is finished to obtain a silver-loaded non-woven fabric;
(5) and mixing the silver-loaded non-woven fabric and the potassium borohydride solution, putting the mixture into a reaction kettle, sealing the reaction kettle, pressurizing, heating, raising the temperature, stirring, reacting, and discharging to obtain the antistatic non-woven fabric.
4. The preparation method of the antistatic non-woven fabric according to claim 2 or 3, which is characterized by comprising the following specific preparation steps:
(1) weighing 100-120 g of polypropylene, heating to 165-175 ℃ to soften the polypropylene, putting the softened polypropylene into a spinneret plate, and carrying out spinneret spraying under the pressure of 0.4-0.6 MPa to obtain a self-made polypropylene fiber;
(2) placing the self-made polypropylene fiber into a hot press, carrying out hot press molding under the conditions that the temperature is 100-120 ℃ and the pressure is 1-3 MPa, cooling and discharging to obtain a self-made non-woven fabric blank;
(3) mixing the self-made non-woven fabric blank body with a dopamine solution with the concentration of 0.5mmol/L, putting the mixture into an ultrasonic oscillator, carrying out ultrasonic oscillation dipping treatment for 1-2 hours at the frequency of 35-45 kHz, and taking out the dipped non-woven fabric after the ultrasonic oscillation dipping is finished, namely the modified non-woven fabric;
(4) mixing the modified non-woven fabric and a silver nitrate solution with the mass fraction of 30% according to the mass ratio of 1:10, then putting the mixture into a beaker, then placing the beaker on a shaking table, carrying out oscillation impregnation reaction for 30-40 min, and taking out the impregnated non-woven fabric after the oscillation impregnation reaction is finished, thus obtaining the silver-loaded non-woven fabric;
(5) and mixing the silver-loaded non-woven fabric with a 30% potassium borohydride solution by mass, putting the mixture into a reaction kettle, sealing the reaction kettle, pressurizing to 0.5-0.7 MPa, heating to 100-110 ℃, stirring to react for 1-2 hours, and discharging to obtain the antistatic non-woven fabric.
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