CN114574984A - Antistatic fabric and preparation method thereof - Google Patents
Antistatic fabric and preparation method thereof Download PDFInfo
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- CN114574984A CN114574984A CN202210250032.1A CN202210250032A CN114574984A CN 114574984 A CN114574984 A CN 114574984A CN 202210250032 A CN202210250032 A CN 202210250032A CN 114574984 A CN114574984 A CN 114574984A
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- Prior art keywords
- polydopamine
- polypropylene
- modified polypropylene
- heating
- antistatic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000004744 fabric Substances 0.000 title claims abstract description 47
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 title description 2
- 239000004743 Polypropylene Substances 0.000 claims abstract description 51
- 229920001690 polydopamine Polymers 0.000 claims abstract description 49
- -1 polypropylene Polymers 0.000 claims abstract description 48
- 229920001155 polypropylene Polymers 0.000 claims abstract description 48
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 12
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims abstract description 11
- 235000011114 ammonium hydroxide Nutrition 0.000 claims abstract description 11
- 229920001577 copolymer Polymers 0.000 claims abstract description 3
- 229920000333 poly(propyleneimine) Polymers 0.000 claims abstract description 3
- 238000010438 heat treatment Methods 0.000 claims description 27
- 239000000835 fiber Substances 0.000 claims description 26
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 23
- 238000002156 mixing Methods 0.000 claims description 21
- 239000000243 solution Substances 0.000 claims description 11
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 9
- 238000002844 melting Methods 0.000 claims description 9
- 230000008018 melting Effects 0.000 claims description 9
- 238000005406 washing Methods 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 238000005507 spraying Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 6
- 239000003999 initiator Substances 0.000 claims description 6
- 239000003960 organic solvent Substances 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 5
- 238000007664 blowing Methods 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 238000001746 injection moulding Methods 0.000 claims description 5
- 230000001376 precipitating effect Effects 0.000 claims description 5
- 239000002356 single layer Substances 0.000 claims description 5
- 238000000967 suction filtration Methods 0.000 claims description 5
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 claims description 4
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 4
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 4
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- UICXTANXZJJIBC-UHFFFAOYSA-N 1-(1-hydroperoxycyclohexyl)peroxycyclohexan-1-ol Chemical compound C1CCCCC1(O)OOC1(OO)CCCCC1 UICXTANXZJJIBC-UHFFFAOYSA-N 0.000 claims description 3
- CYNYIHKIEHGYOZ-UHFFFAOYSA-N 1-bromopropane Chemical compound CCCBr CYNYIHKIEHGYOZ-UHFFFAOYSA-N 0.000 claims description 3
- YIVJZNGAASQVEM-UHFFFAOYSA-N Lauroyl peroxide Chemical compound CCCCCCCCCCCC(=O)OOC(=O)CCCCCCCCCCC YIVJZNGAASQVEM-UHFFFAOYSA-N 0.000 claims description 3
- AGEZXYOZHKGVCM-UHFFFAOYSA-N benzyl bromide Chemical compound BrCC1=CC=CC=C1 AGEZXYOZHKGVCM-UHFFFAOYSA-N 0.000 claims description 3
- RDHPKYGYEGBMSE-UHFFFAOYSA-N bromoethane Chemical compound CCBr RDHPKYGYEGBMSE-UHFFFAOYSA-N 0.000 claims description 3
- 238000007334 copolymerization reaction Methods 0.000 claims description 3
- 239000003208 petroleum Substances 0.000 claims description 3
- BWJUFXUULUEGMA-UHFFFAOYSA-N propan-2-yl propan-2-yloxycarbonyloxy carbonate Chemical compound CC(C)OC(=O)OOC(=O)OC(C)C BWJUFXUULUEGMA-UHFFFAOYSA-N 0.000 claims description 3
- QEQBMZQFDDDTPN-UHFFFAOYSA-N (2-methylpropan-2-yl)oxy benzenecarboperoxoate Chemical compound CC(C)(C)OOOC(=O)C1=CC=CC=C1 QEQBMZQFDDDTPN-UHFFFAOYSA-N 0.000 claims description 2
- LCPVQAHEFVXVKT-UHFFFAOYSA-N 2-(2,4-difluorophenoxy)pyridin-3-amine Chemical compound NC1=CC=CN=C1OC1=CC=C(F)C=C1F LCPVQAHEFVXVKT-UHFFFAOYSA-N 0.000 claims description 2
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 claims description 2
- WFUGQJXVXHBTEM-UHFFFAOYSA-N 2-hydroperoxy-2-(2-hydroperoxybutan-2-ylperoxy)butane Chemical compound CCC(C)(OO)OOC(C)(CC)OO WFUGQJXVXHBTEM-UHFFFAOYSA-N 0.000 claims description 2
- FRIBMENBGGCKPD-UHFFFAOYSA-N 3-(2,3-dimethoxyphenyl)prop-2-enal Chemical compound COC1=CC=CC(C=CC=O)=C1OC FRIBMENBGGCKPD-UHFFFAOYSA-N 0.000 claims description 2
- 239000004342 Benzoyl peroxide Substances 0.000 claims description 2
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 claims description 2
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 claims description 2
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 2
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 2
- BLCKNMAZFRMCJJ-UHFFFAOYSA-N cyclohexyl cyclohexyloxycarbonyloxy carbonate Chemical compound C1CCCCC1OC(=O)OOC(=O)OC1CCCCC1 BLCKNMAZFRMCJJ-UHFFFAOYSA-N 0.000 claims description 2
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 claims description 2
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 2
- 238000001556 precipitation Methods 0.000 claims description 2
- 230000035484 reaction time Effects 0.000 claims description 2
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 claims description 2
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Substances [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 claims description 2
- 238000009987 spinning Methods 0.000 claims description 2
- OPQYOFWUFGEMRZ-UHFFFAOYSA-N tert-butyl 2,2-dimethylpropaneperoxoate Chemical compound CC(C)(C)OOC(=O)C(C)(C)C OPQYOFWUFGEMRZ-UHFFFAOYSA-N 0.000 claims description 2
- CIHOLLKRGTVIJN-UHFFFAOYSA-N tert‐butyl hydroperoxide Chemical compound CC(C)(C)OO CIHOLLKRGTVIJN-UHFFFAOYSA-N 0.000 claims description 2
- 239000008096 xylene Substances 0.000 claims description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims 1
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 239000003063 flame retardant Substances 0.000 abstract description 4
- 230000000052 comparative effect Effects 0.000 description 10
- 230000006872 improvement Effects 0.000 description 9
- 239000000463 material Substances 0.000 description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 6
- 229920006240 drawn fiber Polymers 0.000 description 6
- 230000003068 static effect Effects 0.000 description 6
- 230000005611 electricity Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000004753 textile Substances 0.000 description 4
- 238000002074 melt spinning Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229920002972 Acrylic fiber Polymers 0.000 description 1
- 229920004933 Terylene® Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000001027 hydrothermal synthesis Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 238000002464 physical blending Methods 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
- D01F6/46—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 polyolefins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G81/00—Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers
- C08G81/02—Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers at least one of the polymers being obtained by reactions involving only carbon-to-carbon unsaturated bonds
-
- 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
- D01F1/07—Addition of substances to the spinning solution or to the melt for making fire- or flame-proof filaments
-
- 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
- D01F1/09—Addition of substances to the spinning solution or to the melt for making electroconductive or anti-static filaments
-
- 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
- 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
- D06M11/58—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 nitrogen or compounds thereof, e.g. with nitrides
- D06M11/59—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 nitrogen or compounds thereof, e.g. with nitrides with ammonia; with complexes of organic amines with inorganic substances
- D06M11/60—Ammonia as a gas or in solution
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Textile Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention provides an antistatic fabric and a preparation method thereof, belonging to the technical field of fabrics and prepared from polydopamine modified polypropylene, an ammonia water solution and tetraethoxysilane; the polydopamine modified polypropylene is obtained by copolymerizing polypropylene and polydopamine and quaternizing the copolymer by a quaternizing agent, and has the structure shown in the specification, wherein n is 500-5000; m is 200-1000; the inventionThe prepared antistatic fabric has a good antistatic effect, good mechanical property and flame retardant property, good hydrophilicity, good skin-friendly flexibility and good application prospect.
Description
Technical Field
The invention relates to the technical field of fabrics, in particular to an antistatic fabric and a preparation method thereof.
Background
The textile material is an electrical insulator material, particularly synthetic fibers such as terylene, acrylic fibers, polyvinyl chloride fibers and the like, and has poor moisture absorption performance and high specific resistance. Thus, during the textile processing, the intimate contact and friction between fibers or fibers and the machine parts, as well as the mutual contact and friction of the processed textiles, can cause the transfer of electrical charge and the generation of static electricity.
The presence of static electricity, on the one hand, affects the quality of the product and the wearability of the fabric, and on the other hand, discharges to produce sparks, causing fire and serious consequences. The use of antistatic fabrics is particularly important in special environments and workplaces, such as the electronic industry, the medical and health industry, and flammable and explosive places such as gas stations and mines. At present, adding a surfactant to the surface of a formed fiber to obtain an antistatic fabric is the most conventional and simplest method, but the antistatic effect gradually decreases as the number of washing times increases. Therefore, the development of the antistatic fabric with strong and durable antistatic performance has profound significance.
Disclosure of Invention
The invention aims to provide an antistatic fabric and a preparation method thereof, and the antistatic fabric has a good antistatic effect, good mechanical property and flame retardant property, good hydrophilicity, good skin-friendly softness and good application prospect.
The technical scheme of the invention is realized as follows:
the invention provides an antistatic fabric which is prepared from polydopamine modified polypropylene, an ammonia water solution and tetraethoxysilane; the polydopamine modified polypropylene is obtained by copolymerizing polypropylene and polydopamine and quaternizing the copolymer by a quaternizing agent, and has a structure shown in a formula I:
wherein n is 500-; m is 200-.
As a further improvement of the invention, the preparation method of the polydopamine modified polypropylene comprises the following steps: mixing polydopamine, an initiator and polypropylene, carrying out melt blending under the irradiation of ultraviolet light to carry out graft copolymerization, adding the mixture into an organic solvent containing a quaternizing agent, carrying out heating reaction, carrying out ether precipitation, and washing to obtain the polydopamine modified polypropylene.
As a further improvement of the invention, the mass ratio of the polydopamine, the photoinitiator, the polypropylene and the quaternizing agent is (30-70): (0.1-0.5): 20: (25-35).
As a further improvement of the present invention, the initiator is selected from at least one of azobisisobutyronitrile, azobisisoheptonitrile, sodium bisulfite, t-butyl hydroperoxide, benzoyl peroxide, lauroyl peroxide, cumene hydroperoxide, di-t-butyl peroxide, t-butyl peroxybenzoate, dicumyl peroxide, cyclohexanone peroxide, t-butyl peroxypivalate, methyl ethyl ketone peroxide, diisopropyl peroxydicarbonate, dicyclohexyl peroxydicarbonate, sodium persulfate, potassium persulfate, and ammonium persulfate; the quaternizing agent is at least one selected from bromoethane, benzyl bromide and bromopropane; the organic solvent is at least one selected from dichloromethane, chloroform, petroleum ether, toluene and xylene.
As a further improvement of the invention, the preparation method of the polydopamine modified polypropylene specifically comprises the following steps: mixing 30-70 parts by weight of polydopamine, 0.1-0.5 part by weight of initiator and 20 parts by weight of polypropylene, heating to 220-240 ℃ for melting and blending for 2-4h under the irradiation of ultraviolet light in the range of 300nm, then adding the mixture into an organic solvent containing 25-35 parts by weight of quaternizing agent, heating to 60-80 ℃ for reaction for 1-3h, precipitating with diethyl ether, and washing to obtain the polydopamine modified polypropylene.
The invention further provides a preparation method of the antistatic fabric, which comprises the following steps:
s1, adding polydopamine modified polypropylene into a screw injection molding machine, adding tetraethoxysilane, uniformly mixing, heating, melting and spinning, and stretching under the action of hot air to obtain antistatic fiber;
s2, drawing the modified fibers through a drawing airflow, blowing the modified fibers to a roller, collecting the modified fibers on a flat plate, adhering the modified fibers into single-layer yarns by means of self heat, uniformly spraying an ammonia water solution, carrying out ultrasonic heating until the modified fibers fully react, cleaning with absolute alcohol, carrying out suction filtration once, and drying to obtain the antistatic fabric.
As a further improvement of the present invention, in step S1, the mass ratio of the polydopamine modified polypropylene to the tetraethoxysilane is 100: (5-12).
As a further improvement of the invention, the heating and melting temperature in the step S1 is 190-220 ℃.
As a further improvement of the invention, the concentration of the ammonia water solution in the step S2 is 15-20 wt%; the spraying amount is 0.5-0.7 g/kg.
As a further improvement of the invention, the heating temperature in the step S2 is 75-85 ℃, and the reaction time is 3-5 h.
The invention has the following beneficial effects: according to the invention, polydopamine is grafted to a polypropylene molecular chain through copolymerization, and polydopamine molecules grafted to the polypropylene molecular chain are quaternized through reaction of a quaternizing agent, so that a cationic molecular structure is obtained, a conductive layer is formed after the fabric is prepared, the surface resistivity of the material is reduced, and static leakage is accelerated; due to the polyhydroxy structure of the polydopamine molecules, the fabric has good hydrophilicity, the surface energy level of the material is changed, the surface of the material becomes soft and smooth, the friction coefficient is reduced, the quantity of static electricity generated in the contact-separation process is reduced, and the prepared fabric has excellent antistatic performance.
When the antistatic fabric is prepared, the tetraethoxysilane and the ammonia water solution are additionally added, the tetraethoxysilane uniformly distributed in the fabric is in the polydopamine modified polypropylene fiber, and the silicon dioxide is generated in situ by the hydrothermal reaction under the alkaline condition, so that the mechanical property, the flame retardant property and the like of the prepared fabric are obviously improved, the friction coefficient of the fabric is reduced, the hydrophilic property of the fabric is improved, and the antistatic property of the fabric can be enhanced at the same time.
The antistatic fabric prepared by the invention has good antistatic effect, good mechanical property and flame retardant property, good hydrophilicity, good skin-friendly flexibility and good application prospect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a synthesis scheme of polydopamine modified polypropylene according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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
Referring to fig. 1, the preparation method of the polydopamine modified polypropylene specifically comprises the following steps: mixing 30 parts by weight of polydopamine, 0.1 part by weight of diisopropyl peroxydicarbonate and 20 parts by weight of polypropylene, heating to 220 ℃ under the irradiation of ultraviolet light in the range of 220-300nm, melting and blending for 2 hours, then adding 100 parts by weight of dimethylbenzene containing 25 parts by weight of bromopropane, heating to 60 ℃ for reaction for 1 hour, precipitating by ethyl ether, and washing by acetone to obtain the polydopamine modified polypropylene.
The preparation method of the antistatic fabric comprises the following steps:
s1, adding 100 parts by weight of polydopamine modified polypropylene into a screw injection molding machine, adding 5 parts by weight of ethyl orthosilicate, uniformly mixing, heating to 190 ℃, carrying out melt spinning, and stretching under the action of hot air to obtain antistatic fiber;
s2, drawing the modified fibers by drawing airflow, blowing the drawn fibers to a roller, collecting the drawn fibers on a flat plate, adhering the fibers into single-layer yarns by means of self heat, uniformly spraying 15 wt% of ammonia water solution, performing ultrasonic heating to 75 ℃, reacting for 3 hours, cleaning with absolute alcohol, performing suction filtration once, and drying to obtain the antistatic fabric.
Example 2
Referring to fig. 1, the preparation method of the polydopamine modified polypropylene specifically comprises the following steps: mixing 70 parts by weight of polydopamine, 0.5 part by weight of cyclohexanone peroxide and 20 parts by weight of polypropylene, heating to 240 ℃ under the irradiation of ultraviolet light in the range of 220-300nm for melting and blending for 4 hours, then adding 100 parts by weight of petroleum ether containing 35 parts by weight of benzyl bromide, heating to 80 ℃ for reaction for 3 hours, precipitating with ethyl ether, and washing with acetone to obtain the polydopamine modified polypropylene.
The preparation method of the antistatic fabric comprises the following steps:
s1, adding 100 parts by weight of polydopamine modified polypropylene into a screw injection molding machine, adding 12 parts by weight of tetraethoxysilane, uniformly mixing, heating to 220 ℃ for melt spinning, and stretching under the action of hot air to obtain antistatic fiber;
s2, drawing the modified fibers by drawing airflow, blowing the drawn fibers to a roller, collecting the drawn fibers on a flat plate, adhering the fibers into single-layer yarns by means of self heat, uniformly spraying 20 wt% of ammonia water solution, performing ultrasonic heating to 85 ℃, reacting for 5 hours, cleaning with absolute alcohol, performing suction filtration once, and drying to obtain the antistatic fabric.
Example 3
Referring to fig. 1, the preparation method of the polydopamine modified polypropylene specifically comprises the following steps: mixing 45 parts by weight of polydopamine, 0.3 part by weight of lauroyl peroxide and 20 parts by weight of polypropylene, heating to 230 ℃ under the irradiation of ultraviolet light in the range of 220-300nm, melting and blending for 3 hours, then adding 100 parts by weight of toluene containing 30 parts by weight of ethyl bromide, heating to 70 ℃ for reaction for 2 hours, precipitating with diethyl ether, and washing with acetone to obtain the polydopamine modified polypropylene.
The preparation method of the antistatic fabric comprises the following steps:
s1, adding 100 parts by weight of polydopamine modified polypropylene into a screw injection molding machine, adding 7 parts by weight of ethyl orthosilicate, uniformly mixing, heating to 210 ℃, carrying out melt spinning, and stretching under the action of hot air to obtain antistatic fiber;
s2, drawing the modified fibers by drawing airflow, blowing the drawn fibers to a roller, collecting the drawn fibers on a flat plate, adhering the fibers into single-layer yarns by means of self heat, uniformly spraying 17 wt% of ammonia water solution, wherein the spraying amount is 0.6g/kg, carrying out ultrasonic heating to 80 ℃, reacting for 4 hours, cleaning with absolute alcohol, carrying out suction filtration once, and drying to obtain the antistatic fabric.
Example 4
Compared with example 3, the preparation method of the polydopamine modified polypropylene is simple melt blending, and other conditions are not changed.
The preparation method comprises the following steps: heating 45 parts by weight of polydopamine and 20 parts by weight of polypropylene to 230 ℃, and carrying out melt blending for 3 hours to obtain polydopamine modified polypropylene.
Comparative example 1
Compared with example 3, no ethyl orthosilicate was added, and other conditions were not changed.
Comparative example 2
Compared with example 3, the polypropylene is used for replacing the polydopamine modified polypropylene, and other conditions are not changed.
Test example 1 measurement of surface Density of Charge
The antistatic fabrics prepared in examples 1-4 and comparative examples 1-2 of the present invention were prepared according to the national standard GB/T12703.2-2021 part 2 of the textile static test method: the results of the tests conducted by the manual rubbing method are shown in Table 1.
TABLE 1
| Group of | Surface density of electric charge (uC/m)2) | Surface density of electric charge (uC/m) after washing with water for 100 times2) |
| Example 1 | 0.72 | 0.77 |
| Example 2 | 0.70 | 0.74 |
| Example 3 | 0.67 | 0.70 |
| Example 4 | 3.45 | 4.25 |
| Comparative example 1 | 2.42 | 3.45 |
| Comparative example 2 | 7.19 | 8.27 |
From the above table, the antistatic fabrics prepared in the embodiments 1 to 3 of the present invention have good antistatic performance.
Test example 2
The antistatic fabrics prepared in examples 1-4 of the present invention and comparative examples 1-2 were subjected to mechanical property tests, and the results are shown in table 1.
TABLE 1
| Group of | Breaking strength (N) | Elongation at Break (%) |
| Example 1 | 622 | 21 |
| Example 2 | 627 | 22 |
| Example 3 | 630 | 24 |
| Example 4 | 602 | 19 |
| Comparative example 1 | 587 | 17 |
| Comparative example 2 | 575 | 15 |
As can be seen from the table above, the antistatic fabrics prepared in the embodiments 1 to 3 of the present invention have good mechanical properties.
In the embodiment 4, the polydopamine modified polypropylene is obtained by a simple physical blending method, the mechanical property is obviously reduced, and the antistatic property is reduced; due to the polyhydroxy structure of the polydopamine molecules, the fabric has good hydrophilicity, the surface energy level of the material is changed, the surface of the material becomes soft and smooth, the friction coefficient is reduced, the quantity of static electricity generated in the contact-separation process is reduced, and the prepared fabric has excellent antistatic performance.
In the comparative example 1, the tetraethoxysilane is not added, the mechanical property of the fabric is obviously reduced, and the antistatic property of the fabric is slightly reduced.
In comparative example 2, polypropylene was used instead of polydopamine-modified polypropylene, and the mechanical properties and antistatic properties were significantly reduced.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. An antistatic fabric is characterized by being prepared from polydopamine modified polypropylene, an ammonia water solution and tetraethoxysilane; the polydopamine modified polypropylene is obtained by copolymerizing polypropylene and polydopamine and quaternizing the copolymer by a quaternizing agent, and has a structure shown in a formula I:
wherein n is 500-; m is 200-.
2. The antistatic fabric according to claim 1, wherein the preparation method of the polydopamine modified polypropylene is as follows: mixing polydopamine, an initiator and polypropylene, carrying out melt blending under the irradiation of ultraviolet light to carry out graft copolymerization, adding the mixture into an organic solvent containing a quaternizing agent, carrying out heating reaction, carrying out ether precipitation, and washing to obtain the polydopamine modified polypropylene.
3. The antistatic fabric according to claim 2, wherein the mass ratio of the polydopamine to the photoinitiator to the polypropylene to the quaternizing agent is (30-70): (0.1-0.5): 20: (25-35).
4. The antistatic fabric according to claim 2, wherein the initiator is selected from at least one of azobisisobutyronitrile, azobisisoheptonitrile, sodium bisulfite, t-butyl hydroperoxide, benzoyl peroxide, lauroyl peroxide, cumene hydroperoxide, di-t-butyl peroxide, t-butyl peroxybenzoate, dicumyl peroxide, cyclohexanone peroxide, t-butyl peroxypivalate, methyl ethyl ketone peroxide, diisopropyl peroxydicarbonate, dicyclohexyl peroxydicarbonate, sodium persulfate, potassium persulfate, and ammonium persulfate; the quaternizing agent is at least one selected from bromoethane, benzyl bromide and bromopropane; the organic solvent is at least one selected from dichloromethane, chloroform, petroleum ether, toluene and xylene.
5. The antistatic fabric according to claim 2, wherein the preparation method of the polydopamine modified polypropylene is as follows: mixing 30-70 parts by weight of polydopamine, 0.1-0.5 part by weight of initiator and 20 parts by weight of polypropylene, heating to 220-240 ℃ for melting and blending for 2-4h under the irradiation of ultraviolet light in the range of 300nm, then adding the mixture into an organic solvent containing 25-35 parts by weight of quaternizing agent, heating to 60-80 ℃ for reaction for 1-3h, precipitating with diethyl ether, and washing to obtain the polydopamine modified polypropylene.
6. A method for preparing the antistatic fabric as claimed in any one of claims 1 to 5, characterized by comprising the following steps:
s1, adding polydopamine modified polypropylene into a screw injection molding machine, adding tetraethoxysilane, uniformly mixing, heating, melting and spinning, and stretching under the action of hot air to obtain antistatic fiber;
s2, drawing the modified fibers by a drawing airflow, blowing the modified fibers to a roller, collecting the modified fibers on a flat plate, adhering the modified fibers into single-layer yarns by means of self heat, uniformly spraying an ammonia water solution, carrying out ultrasonic heating until the modified fibers fully react, cleaning with absolute alcohol, carrying out suction filtration once, and drying to obtain the antistatic fabric.
7. The preparation method according to claim 6, wherein the mass ratio of the polydopamine-modified polypropylene to the tetraethoxysilane in the step S1 is 100: (5-12).
8. The method as claimed in claim 6, wherein the heating melting temperature in step S1 is 190-220 ℃.
9. The method according to claim 6, wherein the concentration of the aqueous ammonia solution in step S2 is 15 to 20 wt%; the spraying amount is 0.5-0.7 g/kg.
10. The method according to claim 6, wherein the heating temperature in step S2 is 75-85 ℃ and the reaction time is 3-5 hours.
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