CN114941239A - Photo-thermal polyester fiber product finishing method based on in-situ deposition - Google Patents
Photo-thermal polyester fiber product finishing method based on in-situ deposition Download PDFInfo
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- CN114941239A CN114941239A CN202210676722.3A CN202210676722A CN114941239A CN 114941239 A CN114941239 A CN 114941239A CN 202210676722 A CN202210676722 A CN 202210676722A CN 114941239 A CN114941239 A CN 114941239A
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- polyester fiber
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- persulfate
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- 239000000835 fiber Substances 0.000 title claims abstract description 110
- 229920000728 polyester Polymers 0.000 title claims abstract description 99
- 238000000034 method Methods 0.000 title claims abstract description 52
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 21
- 230000008021 deposition Effects 0.000 title claims abstract description 20
- 239000004744 fabric Substances 0.000 claims abstract description 25
- OMZSGWSJDCOLKM-UHFFFAOYSA-N copper(II) sulfide Chemical compound [S-2].[Cu+2] OMZSGWSJDCOLKM-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000012545 processing Methods 0.000 claims abstract description 22
- QKSIFUGZHOUETI-UHFFFAOYSA-N copper;azane Chemical compound N.N.N.N.[Cu+2] QKSIFUGZHOUETI-UHFFFAOYSA-N 0.000 claims abstract description 20
- 230000000694 effects Effects 0.000 claims abstract description 19
- 235000011114 ammonium hydroxide Nutrition 0.000 claims abstract description 16
- 229910052979 sodium sulfide Inorganic materials 0.000 claims abstract description 13
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 claims abstract description 13
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims abstract description 12
- 238000006886 vinylation reaction Methods 0.000 claims abstract description 12
- DCUFMVPCXCSVNP-UHFFFAOYSA-N methacrylic anhydride Chemical compound CC(=C)C(=O)OC(=O)C(C)=C DCUFMVPCXCSVNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 230000004048 modification Effects 0.000 claims abstract description 10
- 238000012986 modification Methods 0.000 claims abstract description 10
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims abstract description 10
- 229920002554 vinyl polymer Polymers 0.000 claims abstract description 10
- 238000002791 soaking Methods 0.000 claims abstract description 8
- 230000003197 catalytic effect Effects 0.000 claims abstract description 6
- 238000010559 graft polymerization reaction Methods 0.000 claims abstract description 6
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 6
- 229920000642 polymer Polymers 0.000 claims abstract description 4
- 238000006243 chemical reaction Methods 0.000 claims abstract description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 36
- 230000008569 process Effects 0.000 claims description 18
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 12
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 9
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 9
- 150000002500 ions Chemical class 0.000 claims description 9
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 claims description 9
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000002759 woven fabric Substances 0.000 claims description 8
- 239000011837 N,N-methylenebisacrylamide Substances 0.000 claims description 7
- 229920002125 Sokalan® Polymers 0.000 claims description 7
- ZIUHHBKFKCYYJD-UHFFFAOYSA-N n,n'-methylenebisacrylamide Chemical compound C=CC(=O)NCNC(=O)C=C ZIUHHBKFKCYYJD-UHFFFAOYSA-N 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 7
- 239000004584 polyacrylic acid Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 4
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 4
- 239000003093 cationic surfactant Substances 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 4
- 229910000365 copper sulfate Inorganic materials 0.000 claims description 4
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 4
- 239000008367 deionised water Substances 0.000 claims description 4
- 229910021641 deionized water Inorganic materials 0.000 claims description 4
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 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
- 239000002994 raw material Substances 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
- 238000000151 deposition Methods 0.000 abstract description 20
- 239000004753 textile Substances 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 4
- 229920004933 Terylene® Polymers 0.000 abstract description 3
- 239000005020 polyethylene terephthalate Substances 0.000 abstract description 3
- 239000003513 alkali Substances 0.000 abstract description 2
- 230000002045 lasting effect Effects 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 description 6
- 238000005406 washing Methods 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 5
- -1 copper ammonia ions Chemical class 0.000 description 3
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 229910001431 copper ion Inorganic materials 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000007730 finishing process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000010003 thermal finishing Methods 0.000 description 2
- 229910052724 xenon Inorganic materials 0.000 description 2
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 2
- 150000008065 acid anhydrides Chemical class 0.000 description 1
- VPONMBLTGNYMND-UHFFFAOYSA-N azane copper(1+) Chemical compound N.N.N.N.[Cu+] VPONMBLTGNYMND-UHFFFAOYSA-N 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005274 electronic transitions Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000007704 transition Effects 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
- D06M11/51—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 sulfur, selenium, tellurium, polonium or compounds thereof
- D06M11/53—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 sulfur, selenium, tellurium, polonium or compounds thereof with hydrogen sulfide or its salts; with polysulfides
-
- 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
- D06M11/32—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 oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—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 oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/38—Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic Table
-
- 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
- D06M14/00—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials
- D06M14/08—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials on to materials of synthetic origin
- D06M14/12—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials on to materials of synthetic origin of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M14/14—Polyesters
-
- 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
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/32—Polyesters
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention discloses a photo-thermal polyester fiber product finishing method based on in-situ deposition, and belongs to the technical field of functional textile processing. Firstly, carrying out alkali deweighting on terylene, and introducing vinyl on the surface of fiber by virtue of the reaction of methacrylic anhydride and hydroxyl on terylene; then forming a polymer reticular template containing carboxyl on the surface of the polyester fiber through catalytic graft polymerization; and finally, soaking the polyester fiber product in a copper ammonia solution, adding sodium sulfide, and generating nano copper sulfide through surface in-situ deposition to obtain the finishing method of the polyester fiber product with the photothermal effect. The method comprises the following steps: (1) polyester alkaline pretreatment; (2) carrying out fiber vinylation modification; (3) constructing a fiber surface template; (4) and (4) depositing nano copper sulfide in situ. Compared with the conventional grafting modification finishing method by a chemical method, the method has the advantages of rapid photo-thermal temperature rise of the fiber surface, lasting finishing effect and good fabric hand feeling.
Description
Technical Field
The invention relates to a photo-thermal polyester fiber product finishing method based on in-situ deposition, and belongs to the technical field of functional textile processing.
Background
Compared with natural fibers, the terylene fabric not only has stronger fiber strength, smooth hand feeling and excellent shape-preserving effect, but also can be used as clothing fabrics and has wider application prospect in the fields of decorative and industrial textiles.
In recent years, the development and application of functional textiles made of polyester fibers have been regarded as important and have become a research hotspot. The polyester fabric has good stability, can be used for processing various textiles in a forming mode, and can endow the polyester fiber product with self-heating effect under specific conditions by combining with conductive fibers, photo-thermal particles/electric-thermal particles for coating finishing. The light heating is realized by selecting a photo-thermal medium with absorption effect on visible light or near infrared, and generating photo-thermal effect through medium electronic transition under the condition of visible light to trigger the surface temperature of the fiber to be raised. Compared with a plurality of common electrothermal fiber products, the photothermal polyester fabric does not need a special external power supply, can realize rapid temperature rise on the surface of the fiber only by illumination with certain intensity, and most photothermal polyester fiber products are processed by means of a coating finishing method for obtaining a durable and stable photothermal effect, although the bonding fastness is higher, the hand feeling of the fiber products is generally poorer. Therefore, how to optimize the photo-thermal finishing method of the polyester fiber products and meet the requirements of the polyester fiber products on photo-thermal effect and hand feeling is a technical problem to be solved at present.
The nano copper sulfide has good optical properties, so that the nano copper sulfide becomes a photo-thermal finishing agent with development prospect, has strong absorption capacity on near infrared light, can trigger d-d energy band transition of copper ions, enables the substrate temperature to be rapidly increased, and endows materials including polyester fiber substrates with higher photo-thermal characteristics. The traditional preparation of nano copper sulfide requires harsh conditions of high temperature and high pressure, and the obtained nano copper sulfide has low affinity to fibers, and still needs to be applied to the surface of a fabric by a coating finishing method by means of an adhesive. The invention provides a method for preparing photo-thermal polyester fabric by using modified polyester fiber as a template and self-assembling the modified polyester fiber on the surface of polyester fiber to form nano copper sulfide particles through an in-situ deposition method, so that a good photo-thermal effect is expected to be obtained.
Disclosure of Invention
The technical problem is as follows:
the technical problem to be solved by the invention is to provide a photothermal polyester fiber product finishing method based on in-situ deposition, the photothermal finishing effect of polyester fabrics can be improved by using the method, and the technical problems of poor fabric hand feeling and insufficient air permeability in the finishing process of the traditional coating method are solved.
The technical scheme is as follows:
in view of the above problems, the invention aims to provide an in-situ deposition-based photo-thermal polyester fiber product finishing method, which can improve the negative charge distribution density of the surface of a polyester fiber, promote the adsorption of positively charged copper ammonia ions, guide nano copper sulfide ions to undergo in-situ deposition on the surface of the fiber, realize the preparation of the photo-thermal polyester fiber product by a coating replacement method, and improve the functionality of the polyester fiber product.
The invention provides a method for finishing a photo-thermal polyester fiber product based on in-situ deposition, which is characterized by comprising the following steps: firstly, treating the polyester fabric by using caustic soda to hydrolyze polyester bonds on the surface of the fiber to generate hydroxyl groups; secondly, carrying out reaction between methacrylic anhydride and hydroxyl on the surface of the polyester fiber to realize surface vinylation of the polyester fiber; then, catalyzing acrylic acid and N, N-methylene bisacrylamide to graft and polymerize on the fiber by using persulfate, and forming a carboxyl-containing reticular template on the surface of the polyester fiber; and finally, soaking the polyester fiber product in a copper ammonia solution, adding sodium sulfide, and forming nano copper sulfide particles on the fiber surface through surface in-situ deposition to obtain the finishing method of the polyester fiber product with the photothermal effect.
A photo-thermal polyester fiber product finishing method based on in-situ deposition comprises the following specific process steps:
(1) polyester alkaline pretreatment: carrying out pretreatment on polyester fiber products by using caustic soda;
the processing process prescription and conditions are as follows: 1-2.5 g/L of caustic soda, 85-95 ℃ of temperature, 0.5-1.0 g/L of cationic surfactant and 1-2 hours of treatment time;
(2) fiber vinylation modification: treating the polyester fiber product treated in the step (1) with methacrylic anhydride, cleaning with deionized water after treatment, and introducing vinyl on polyester to obtain a vinyl modified polyester fiber product;
the processing process formula and conditions are as follows: 2-4 g/L of methacrylic anhydride, 0-4 ℃, 7-8 of pH and 4-12 hours of treatment time;
(3) constructing a fiber surface template: carrying out catalytic graft polymerization on the polyester fiber product treated in the step (2) by using persulfate to form a polyacrylic acid reticular template rich in carboxyl on the surface of the fiber;
the processing process prescription and conditions are as follows: 8-16 g/L of acrylic acid, 0.5-1 g/L of N, N-methylene-bisacrylamide, 2.5-5 g/L of persulfate, 60-70 ℃ of temperature, 6-7 of pH range and 3-6 hours of treatment time;
(4) in-situ deposition of nano copper sulfide: soaking the polyester fiber product treated in the step (3) in a copper ammonia solution of copper tetraammine complex ions prepared from copper sulfate and ammonia water, stirring for 10-20 min, then dropwise adding a sodium sulfide solution, and continuing to react for 20-40 min after dropwise adding is finished to obtain a polyester fiber product containing nano copper sulfide;
the processing process prescription and conditions are as follows: 0.3-0.6 mol/L of copper ammonia solution of copper tetraammine complex ions, 10-20 g/L of sodium sulfide, and the treatment temperature is 30-50 ℃;
a finishing method of a photo-thermal polyester fiber product based on in-situ deposition is disclosed, wherein the polyester fiber product comprises yarns, woven fabrics, knitted fabrics and non-woven products which take polyester fibers as raw materials; the persulfate includes ammonium persulfate, potassium persulfate, and sodium persulfate.
The second purpose of the invention is to provide a photo-thermal polyester fiber product finished by the method.
The third purpose of the invention is to provide a textile containing the polyester fiber product with the photo-thermal effect.
Has the advantages that:
firstly, introducing vinyl on the surface of polyester fiber through caustic soda pretreatment and vinylation modification to improve the surface reactivity of the fiber; then catalyzing acrylic acid and N, N-methylene bisacrylamide to graft and polymerize by persulfate, and forming a polymer reticular template containing carboxyl on the surface of the polyester fiber; and finally, soaking the polyester fiber product in a copper ammonia solution, adding sodium sulfide, and forming nano copper sulfide particles on the surface of the fiber through surface in-situ deposition to obtain the polyester fiber product with the photothermal effect. Compared with the method of directly depositing nano copper sulfide on the surface of polyester fiber, the method for preparing the photo-thermal polyester fabric has the following advantages:
(1) the fiber surface photothermal temperature rise is fast, after the steps of caustic soda pretreatment, vinylation modification and catalytic acrylic acid graft polymerization, the combination amount of tetraammine copper complex ions and the polyester fiber is increased on a reticular template containing carboxyl on the surface of the polyester fiber, so that more nano copper sulfide ions are formed on the surface of the fiber in the sodium sulfide process, the temperature rise rate of the polyester fiber product under the illumination condition is improved, and the advantage of fast temperature rise is achieved.
(2) The finishing effect is durable, in the processing by the method, a polymer reticular template containing rich carboxyl is formed on the surface of the polyester fiber, wherein the carboxyl can form more coordinate bonds with copper ions and nano copper sulfide, the binding force of photo-thermal nano particles and the polyester fiber is improved, and the photo-thermal polyester fiber product has durable washing resistance.
(3) The fabric has good hand feeling, the photo-thermal polyester fiber product is processed by the method of the invention without using an adhesive or a coating for finishing, so the fabric has good hand feeling.
The specific implementation mode is as follows:
the following description of the preferred embodiments of the present invention is provided for the purpose of better illustrating the invention and is not intended to limit the invention thereto.
Simulating sunlight by using xenon lamp (intensity 200 mW/cm) 2 ) Irradiating the polyester fiber product for 20 min, and detecting the surface temperature (marked as T) of the sample at the position vertical to 30 cm by means of an infrared temperature measuring gun 1 ) (ii) a The sample was washed with water at 60 ℃ for 1 hour, dried and the surface temperature (denoted as T) was measured again under the irradiation conditions described above 2 ) (ii) a And determining the drape coefficient of the sample after water washing by referring to GB/T23329-2009, and evaluating the influence of the finishing process on the hand feeling of the sample.
Example 1:
(1) polyester alkaline pretreatment: carrying out pretreatment on the polyester woven fabric by using caustic soda; the processing process prescription and conditions are as follows: 1 g/L of caustic soda, 85 ℃ of temperature, 0.5 g/L of cationic surfactant and 1 hour of treatment time;
(2) fiber vinylation modification: treating the polyester woven fabric treated in the step (1) with methacrylic anhydride, cleaning with deionized water after treatment, and introducing vinyl on polyester to obtain a vinyl modified polyester woven fabric; the processing process prescription and conditions are as follows: 2 g/L of methacrylic anhydride, 0 ℃, pH 7 and 4 hours of treatment time;
(3) constructing a fiber surface template: carrying out catalytic graft polymerization on the polyester woven fabric treated in the step (2) by using ammonium persulfate to form a polyacrylic acid reticular template rich in carboxyl on the surface of the fiber; the processing process prescription and conditions are as follows: 8 g/L of acrylic acid, 0.5 g/L of N, N-methylene bisacrylamide, 2.5 g/L of ammonium persulfate, 60 ℃ of temperature, 6 of pH value and 3 hours of treatment time;
(4) in-situ deposition of nano copper sulfide: soaking the polyester woven fabric treated in the step (3) in a copper ammonia solution of copper tetraammine complex ions prepared from copper sulfate and ammonia water, stirring for 10 min, then dropwise adding a sodium sulfide solution, and continuing to react for 20 min after dropwise adding is finished to obtain the polyester woven fabric containing nano copper sulfide; the processing process prescription and conditions are as follows: 0.3 mol/L of copper ammonia solution of copper tetraammine complex ions, 10 g/L of sodium sulfide and 30 ℃ of treatment temperature.
Sample 1: an untreated fabric;
sample 2: after the treatment of the step (4), the treatment of the steps (1), (2) and (3) is not carried out;
sample 3: after the treatment of the steps (3) and (4), the treatment of the steps (1) and (2) is not carried out;
sample 4: treated by the steps (2), (3) and (4) without being treated by the step (1);
sample 5: processing by steps (1), (2), (3) and (4).
Example 2:
(1) polyester alkaline pretreatment: preprocessing the knitted polyester fabric by using caustic soda; the processing process prescription and conditions are as follows: 2.5 g/L of caustic soda, 95 ℃ of temperature, 1.0 g/L of cationic surfactant and 2 hours of treatment time;
(2) fiber vinylation modification: treating the polyester knitted fabric treated in the step (1) with methacrylic anhydride, cleaning with deionized water after treatment, and introducing vinyl on polyester to obtain a vinylation modified polyester knitted fabric; the processing process prescription and conditions are as follows: 4 g/L of methacrylic anhydride, 4 ℃ of temperature, 8 of pH and 12 hours of treatment time;
(3) constructing a fiber surface template: carrying out graft polymerization on the polyester knitted fabric treated in the step (2) by catalysis of potassium persulfate to form a polyacrylic acid reticular template rich in carboxyl on the surface of the fiber; the processing process prescription and conditions are as follows: 16 g/L of acrylic acid, 1 g/L of N, N-methylene-bisacrylamide and 5 g/L of potassium persulfate, the temperature is 70 ℃, the pH value is 7, and the treatment is carried out for 6 hours;
(4) in-situ deposition of nano copper sulfide: soaking the polyester knitted fabric treated in the step (3) in a copper ammonia solution of copper tetraammine complex ions prepared from copper sulfate and ammonia water, stirring for 20 min, then dropwise adding a sodium sulfide solution, and continuing to react for 40 min after dropwise adding is finished, thus obtaining the polyester knitted fabric containing nano copper sulfide; the processing process prescription and conditions are as follows: 0.6 mol/L of copper ammonia solution of copper tetraammine complex ions, 20 g/L of sodium sulfide and 50 ℃ of treatment temperature.
Sample 6: an untreated fabric;
sample 7: after the treatment of the step (4), the treatment of the steps (1), (2) and (3) is not carried out;
sample 8: after the treatment of the steps (3) and (4), the treatment of the steps (1) and (2) is not carried out;
sample 9: treated by the steps (2), (3) and (4) without being treated by the step (1);
sample 10: processing by steps (1), (2), (3) and (4).
After the treatment by the process, the surface temperature T of the sample 1-10 after the xenon lamp irradiation is measured 1 And T 2 And the number of drapability of the samples was recorded separately, and the results are shown in table 1:
TABLE 1
Therefore, compared with untreated samples 1 and 6, the temperature difference between the irradiated surfaces of the samples 2 and 7 before and after washing is not large, which shows that the effect of directly depositing the nano copper sulfide on the surface of the polyester fiber is not ideal and the washing fastness is poor; the samples 3 and 8 adopt the network template containing carboxyl constructed on the surface of the existing fiber, but the formed polyacrylic acid is not effectively combined with the polyester fiber, so the temperature generated by the irradiation of the surface of the fabric after washing is still lower; similarly, under the condition that the polyester fiber is not subjected to alkaline pretreatment, the number of hydroxyl groups on the surface of the fiber is small, so that double bonds introduced after the vinyl fiber is subjected to acid anhydride vinylation are few, a network template of polyacrylic acid is not favorably formed on the surface of the fiber, the irradiation temperatures of the surfaces of the sample 4 and the sample 9 are respectively close to those of the sample 3 and the sample 8, and a good photo-thermal effect is not achieved. The samples 5 and 10 treated by the method have higher surface temperature after irradiation and still have better photo-thermal effect after washing, which shows that the combination of the alkali pretreatment, the vinylation modification and the catalytic grafting of acrylic acid is favorable for the grafting polymerization of the fiber surface to form a polyacrylic acid reticular template, the subsequent efficient deposition of the nano copper sulfide is promoted, and the formed coordination bond ensures that the nano copper sulfide particles have better bonding fastness and the suspension coefficient of the fiber product has less change, thus showing that the samples still have better hand feeling. Therefore, the method has better finishing effect.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (4)
1. A photo-thermal polyester fiber product finishing method based on in-situ deposition is characterized by comprising the following steps: firstly, treating the polyester fabric by using caustic soda to hydrolyze polyester bonds on the surface of the fiber to generate hydroxyl groups; secondly, carrying out reaction on methacrylic anhydride and hydroxyl on the surface of the polyester fiber to realize surface vinylation of the polyester fiber; then, catalyzing acrylic acid and N, N-methylene bisacrylamide to graft and polymerize on the fiber by using persulfate, and forming a polymer reticular template containing carboxyl on the surface of the polyester fiber; and finally, soaking the polyester fiber product in a copper ammonia solution, adding sodium sulfide, and forming nano copper sulfide particles on the fiber surface through surface in-situ deposition to obtain the finishing method of the polyester fiber product with the photothermal effect.
2. Method according to claim 1, characterized in that it comprises the following steps:
(1) polyester alkaline pretreatment: carrying out pretreatment on polyester fiber products by using caustic soda;
the processing process prescription and conditions are as follows: 1-2.5 g/L of caustic soda, 85-95 ℃ of temperature, 0.5-1.0 g/L of cationic surfactant and 1-2 hours of treatment time;
(2) fiber vinylation modification: treating the polyester fiber product treated in the step (1) with methacrylic anhydride, cleaning with deionized water after treatment, and introducing vinyl on polyester to obtain a vinyl modified polyester fiber product;
the processing process prescription and conditions are as follows: 2-4 g/L of methacrylic anhydride, 0-4 ℃, 7-8 of pH and 4-12 hours of treatment time;
(3) constructing a fiber surface template: carrying out catalytic graft polymerization on the polyester fiber product treated in the step (2) by using persulfate to form a polyacrylic acid reticular template rich in carboxyl on the surface of the fiber;
the processing process prescription and conditions are as follows: 8-16 g/L of acrylic acid, 0.5-1 g/L of N, N-methylene bisacrylamide, 2.5-5 g/L of persulfate, 60-70 ℃ of temperature, 6-7 of pH value and 3-6 hours of treatment time;
(4) in-situ deposition of nano copper sulfide: soaking the polyester fiber product treated in the step (3) in a copper ammonia solution of copper tetraammine complex ions prepared from copper sulfate and ammonia water, stirring for 10-20 min, then dropwise adding a sodium sulfide solution, and continuing to react for 20-40 min after dropwise adding is finished to obtain a polyester fiber product containing nano copper sulfide;
the processing process prescription and conditions are as follows: 0.3-0.6 mol/L of copper ammonia solution of copper tetraammine complex ions, 10-20 g/L of sodium sulfide, and the treatment temperature is 30-50 ℃.
3. The method as claimed in claims 1-2, wherein said polyester fiber product comprises yarns, woven fabrics, knitted fabrics and non-woven products using polyester fiber as raw material.
4. The method according to claims 1-2, wherein the persulfate comprises ammonium persulfate, potassium persulfate, and sodium persulfate.
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| CN115852674A (en) * | 2022-11-08 | 2023-03-28 | 江南大学 | Fiber product for realizing photo-thermal rapid sterilization based on in-situ deposited nanoparticles and finishing method thereof |
| CN115852674B (en) * | 2022-11-08 | 2023-11-28 | 江南大学 | Fiber product for realizing photo-thermal rapid sterilization based on in-situ deposited nano particles and finishing method thereof |
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