CN115262212A - Cotton fabric crease-resistant antibacterial finishing method based on organic silicon resin - Google Patents
Cotton fabric crease-resistant antibacterial finishing method based on organic silicon resin Download PDFInfo
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- CN115262212A CN115262212A CN202210982742.3A CN202210982742A CN115262212A CN 115262212 A CN115262212 A CN 115262212A CN 202210982742 A CN202210982742 A CN 202210982742A CN 115262212 A CN115262212 A CN 115262212A
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- cotton fabric
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- quaternary ammonium
- ammonium salt
- organic silicon
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- 239000004744 fabric Substances 0.000 title claims abstract description 76
- 229920000742 Cotton Polymers 0.000 title claims abstract description 66
- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 26
- 239000011347 resin Substances 0.000 title claims abstract description 15
- 229920005989 resin Polymers 0.000 title claims abstract description 15
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 14
- 239000010703 silicon Substances 0.000 title claims abstract description 14
- 150000003242 quaternary ammonium salts Chemical class 0.000 claims abstract description 31
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims abstract description 30
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000002243 precursor Substances 0.000 claims abstract description 16
- 238000004132 cross linking Methods 0.000 claims abstract description 14
- 238000005406 washing Methods 0.000 claims abstract description 11
- 230000001153 anti-wrinkle effect Effects 0.000 claims abstract description 10
- -1 polysiloxane Polymers 0.000 claims abstract description 9
- 239000003999 initiator Substances 0.000 claims abstract description 8
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 6
- 239000011259 mixed solution Substances 0.000 claims abstract description 5
- 229920002678 cellulose Polymers 0.000 claims abstract description 4
- 239000001913 cellulose Substances 0.000 claims abstract description 4
- 239000002904 solvent Substances 0.000 claims abstract description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 30
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 15
- 238000010992 reflux Methods 0.000 claims description 9
- 239000012043 crude product Substances 0.000 claims description 8
- 238000005286 illumination Methods 0.000 claims description 8
- CYNYIHKIEHGYOZ-UHFFFAOYSA-N 1-bromopropane Chemical compound CCCBr CYNYIHKIEHGYOZ-UHFFFAOYSA-N 0.000 claims description 7
- 239000003054 catalyst Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- PSGAAPLEWMOORI-PEINSRQWSA-N medroxyprogesterone acetate Chemical compound C([C@@]12C)CC(=O)C=C1[C@@H](C)C[C@@H]1[C@@H]2CC[C@]2(C)[C@@](OC(C)=O)(C(C)=O)CC[C@H]21 PSGAAPLEWMOORI-PEINSRQWSA-N 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 5
- 238000003760 magnetic stirring Methods 0.000 claims description 5
- 238000002390 rotary evaporation Methods 0.000 claims description 5
- 239000000243 solution Substances 0.000 claims description 5
- 238000006555 catalytic reaction Methods 0.000 claims description 4
- 125000005375 organosiloxane group Chemical group 0.000 claims description 4
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 claims description 3
- 150000004702 methyl esters Chemical class 0.000 claims description 3
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 3
- 229920002554 vinyl polymer Polymers 0.000 claims description 3
- YRDQGCOQKBMZAM-UHFFFAOYSA-N C(C)(C)(C)OC=O.N1CCCCC1 Chemical compound C(C)(C)(C)OC=O.N1CCCCC1 YRDQGCOQKBMZAM-UHFFFAOYSA-N 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 238000007598 dipping method Methods 0.000 claims description 2
- APRJFNLVTJWEPP-UHFFFAOYSA-M n,n-diethylcarbamate Chemical compound CCN(CC)C([O-])=O APRJFNLVTJWEPP-UHFFFAOYSA-M 0.000 claims description 2
- 230000035484 reaction time Effects 0.000 claims description 2
- 125000000031 ethylamino group Chemical group [H]C([H])([H])C([H])([H])N([H])[*] 0.000 claims 1
- 125000001453 quaternary ammonium group Chemical class 0.000 claims 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract description 21
- 238000007730 finishing process Methods 0.000 abstract description 4
- 239000003795 chemical substances by application Substances 0.000 description 6
- 241000894006 Bacteria Species 0.000 description 4
- 239000004753 textile Substances 0.000 description 4
- 230000001678 irradiating effect Effects 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000037303 wrinkles Effects 0.000 description 3
- 229920003043 Cellulose fiber Polymers 0.000 description 2
- 229910008051 Si-OH Inorganic materials 0.000 description 2
- 229910006358 Si—OH Inorganic materials 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- XMYQHJDBLRZMLW-UHFFFAOYSA-N methanolamine Chemical group NCO XMYQHJDBLRZMLW-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- XDLMVUHYZWKMMD-UHFFFAOYSA-N 3-trimethoxysilylpropyl 2-methylprop-2-enoate Chemical compound CO[Si](OC)(OC)CCCOC(=O)C(C)=C XDLMVUHYZWKMMD-UHFFFAOYSA-N 0.000 description 1
- 241000588724 Escherichia coli Species 0.000 description 1
- 241000192125 Firmicutes Species 0.000 description 1
- 241000282414 Homo sapiens Species 0.000 description 1
- 239000002879 Lewis base Substances 0.000 description 1
- 206010034133 Pathogen resistance Diseases 0.000 description 1
- 241000191967 Staphylococcus aureus Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 description 1
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 description 1
- 238000006266 etherification reaction Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 150000007527 lewis bases Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 244000000010 microbial pathogen Species 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- D06M10/00—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
- D06M10/04—Physical treatment combined with treatment with chemical compounds or elements
- D06M10/08—Organic compounds
-
- 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
- D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
-
- 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
- D06M2200/20—Treatment influencing the crease behaviour, the wrinkle resistance, the crease recovery or the ironing ease
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention discloses a crease-resistant antibacterial finishing method for cotton fabrics based on organic silicon resin, and particularly relates to a method for mixing a synthesized quaternary ammonium salt functionalized double-head siloxane precursor, a photobase initiator and solvent acetone into a homogeneous phase. The cleaned cotton fabric is soaked and pricked to make the mixed solution enter the interior of the cotton fabric uniformly; and (2) crosslinking the finished cotton fabric under ultraviolet irradiation, introducing quaternary ammonium salt with broad-spectrum antibacterial function while forming a crosslinking structure in an amorphous cellulose area in the cotton fabric, and removing polysiloxane which is not grafted on the cotton fabric through repeated washing to obtain the anti-wrinkle antibacterial functional cotton fabric. The cotton fabric finished by the method not only realizes excellent crease-resistant antibacterial performance, but also is uniformly crosslinked, and has higher tensile strength, washing resistance and skin-feel fineness; meanwhile, formaldehyde is not involved in the whole finishing process, and the problem of formaldehyde residue is solved radically.
Description
Technical Field
The invention belongs to the technical field of functional finishing of cotton fabrics, relates to a crease-resistant antibacterial finishing method of cotton fabrics, and particularly relates to a crease-resistant antibacterial finishing method of cotton fabrics based on organic silicon resin.
Background
Pure cotton fabric has good wearability and is green and natural, so the pure cotton fabric is an important textile garment fabric all the time. However, pure cotton fabrics are easy to wrinkle in the process of clothes or water washing, so that crease-resistant finishing agents are industrially used for crease-resistant finishing of pure cotton fabrics to improve the crease-resistant performance of the fabrics. The crease-resistant finishing agent used at present is mainly a finishing agent containing a resin with an N-methylol amide structure (or etherification modification thereof) and part of polycarboxylic acids. The N-hydroxymethyl amide crease-resistant finishing agent is produced by taking formaldehyde as a raw material, and the formaldehyde is released in the production process, the crease-resistant finishing process of fabrics and the wearing process of crease-resistant finished fabrics, namely the formaldehyde problem.
Many pathogenic microorganisms exist in the environment, and the healthy life of people is seriously influenced. The porous structure of the textile is easy to adsorb and breed bacteria, and harmful bacteria take the textile as a medium and harm the health of human beings. With the improvement of health consciousness and environmental protection consciousness of people, research and development of antibacterial materials, particularly antibacterial textiles are concerned widely. The quaternary ammonium salt has the characteristics of broad-spectrum antibacterial property, difficult diffusion, low bacterial resistance and the like, and is one of the most widely applied antibacterial substances at present. However, they have a problem that they are poor in durability because they are highly water-soluble and have poor binding force with fibers.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a crease-resistant antibacterial finishing method for cotton fabrics based on organic silicon resin. The method has simple preparation process, and the finished cotton fabric not only realizes excellent crease-resistant antibacterial performance, but also has uniform cross-linking, and has higher tensile strength, washing resistance and skin sense fineness; meanwhile, formaldehyde is not involved in the whole finishing process, and the problem of formaldehyde residue is eliminated from the source.
The invention is realized by the following technical scheme:
a crease-resistant antibacterial finishing method for cotton fabric based on organic silicon resin comprises the following steps:
s1: dissolving ethylaminodithioglycol and bromopropane in an ethanol solution, and heating and refluxing under magnetic stirring to react to prepare a dimercapto functional quaternary ammonium salt; dissolving the obtained double-sulfydryl functionalized quaternary ammonium salt in N, N-dimethylformamide, adding a catalyst DMPA and vinyl functionalized organosiloxane, and carrying out catalytic reaction to obtain a quaternary ammonium salt functionalized double-end siloxane precursor;
the reaction process is as follows:
s2: dissolving the quaternary ammonium salt functionalized double-end siloxane precursor prepared in the step S1 and a photobase initiator in acetone serving as a solvent to form a homogeneous mixed solution, and uniformly feeding the mixed solution into a cleaned cotton fabric through a dipping procedure; placing the soaked cotton fabric in an oven to completely volatilize acetone, transferring the cotton fabric to ultraviolet light for crosslinking, introducing quaternary ammonium salt with broad-spectrum antibacterial function while forming a crosslinking structure between amorphous cellulose in the cotton fabric, and removing polysiloxane which is not grafted on the cotton fabric through repeated washing to obtain the crease-resistant antibacterial cotton fabric.
The invention further improves the scheme as follows:
the vinyl functionalized organic siloxane in S1 is one or a mixture of more than two of the following structural compounds:
further, the photobase initiator in S2 is one or a mixture of two or more of 9-anthracenemethylpiperidine-1-carboxylic acid tert-butyl ester, N-diethylcarbamate, (E) -N-cyclohexyl-3- (2-hydroxyphenyl) acrylamide, and (2-nitrophenyl) methyl-4-hydroxypiperidine-1-carboxylic acid tert-butyl ester.
Further, the molar ratio of the ethylaminodiethylmercaptan to bromopropane in S1 is 1-1.2, the molar ratio of the dimercapto-functionalized quaternary ammonium salt, the vinyl-functionalized organosiloxane and the catalyst DMPA is 1.
Further, the mass ratio of the quaternary ammonium salt functionalized double-head siloxane precursor, the photobase and the solvent acetone in S2 is 1.
Furthermore, the heating reflux reaction time in the S1 is 20-24h, and the catalytic reaction is carried out under the radiation of 365nm ultraviolet light for 1-2h.
Further, the wavelength of the crosslinking in S2 under ultraviolet light is 254 nm, 365nm or 395nm, and the illumination intensity is 20 mw/cm 2 The time is 1-2h.
Further, after the heating reflux reaction in the S1 is finished, removing ethanol through rotary evaporation to obtain a crude product, recrystallizing the crude product in ethanol, and drying the crude product in vacuum at normal temperature to obtain the dimercapto functionalized quaternary ammonium salt.
Compared with the prior art, the invention has the beneficial effects that:
the invention synthesizes a quaternary ammonium salt functionalized double-end siloxane precursor, takes the quaternary ammonium salt functionalized double-end siloxane precursor as an anti-wrinkle antibacterial finishing agent, and is used for the anti-wrinkle antibacterial finishing of cotton fabrics through a sol-gel process induced by light. The cotton fabric finished by the finishing agent disclosed by the invention not only realizes excellent crease-resistant antibacterial performance, but also is uniformly crosslinked, so that the cotton fabric is endowed with higher tensile strength, washing resistance and skin-feel fineness; simultaneously, formaldehyde is not involved in the whole finishing process, and the problem of formaldehyde residue is avoided from the source, and the method is as follows:
(1) Under the irradiation of ultraviolet light, the photoinduced alkali is decomposed to release Lewis base, the siloxane precursor is catalyzed and induced to be hydrolyzed to form Si-OH, crosslinking can be formed between the Si-OH and hydroxyl on cellulose fibers in an unmolded area uniformly and efficiently, and irreversible relative slippage of molecular chains of the cellulose fibers under the action of external force is inhibited, so that excellent anti-wrinkle performance is shown.
(2) The photobase-catalyzed crosslinking process at room temperature does not cause the acidic degradation of the macromolecular chains of the cotton cellulose caused by conventional high-temperature baking, thereby preparing the cotton fabric with high strength retention rate.
(3) The introduced quaternary ammonium salt is formed by a covalent bond, so that the loss of quaternary ammonium salt functional groups in the washing process can be effectively avoided while the broad-spectrum antibacterial performance is ensured, and the finished cotton fabric still has excellent anti-wrinkle and antibacterial performances after being washed for many times.
Detailed Description
The present invention will be described in detail with reference to the following embodiments.
Example 1
Dissolving 0.2mol of ethylaminodiethylmercaptan and 0.22mol of bromopropane in 100ml of ethanol solution, and heating and refluxing for 24h under magnetic stirring. After the reaction was complete, the ethanol was removed by rotary evaporation. And recrystallizing the crude product in ethanol, and drying at normal temperature in vacuum to obtain the dimercapto-functionalized quaternary ammonium salt. Dissolving 0.1mol of the product in 100ml of N, N-dimethylformamide, adding 0.001mol of catalyst DMPA and 0.2mol of vinyl trimethoxy silane, and irradiating for 1h under 365nm ultraviolet light to obtain a quaternary ammonium salt functionalized double-end siloxane precursor A;
5g of the quaternary ammonium salt functionalized double-head siloxane precursor A and 0.05g of photobase initiator 9-anthracenemethyl piperidine-1-tert-butyl formate are dissolved in acetone. The cleaned cotton fabric is soaked and pricked to make the mixture enter the interior of the cotton fabric; placing cotton fabric at 30 o C, completely volatilizing acetone in an oven, transferring the acetone to ultraviolet light for crosslinking, wherein the illumination wavelength is 254 nm, and the illumination intensity is 20 mw/cm 2 The polysiloxane not grafted on the cotton fabric is removed by repeated washing for 1hAnd obtaining the anti-wrinkle antibacterial functional cotton fabric.
Example 2
Ethylaminodiethylmercaptan (0.2 mol) and bromopropane (0.22 mol) were dissolved in 100ml of an ethanol solution and heated under reflux for 24 hours with magnetic stirring. After the reaction was complete, the ethanol was removed by rotary evaporation. And recrystallizing the crude product in ethanol, and drying at normal temperature in vacuum to obtain the dimercapto-functionalized quaternary ammonium salt. Dissolving 0.1mol of the product in 100ml of N, N-dimethylformamide, adding 0.002mol of catalyst DMPA and 0.2mol of vinyl triethoxysilane, and irradiating for 1.5 h under 365nm ultraviolet light to obtain a quaternary ammonium salt functionalized double-end siloxane precursor B;
5g of the quaternary ammonium salt functionalized double-head siloxane precursor B and 0.1g of photobase initiator 9-anthracene methyl ester N, N-diethyl carbamate are dissolved in acetone. The cleaned cotton fabric is soaked and pricked to make the mixture enter the interior of the cotton fabric; placing cotton fabric at 30 o C, completely volatilizing the acetone in an oven, transferring the acetone to ultraviolet light for crosslinking, wherein the illumination wavelength is 365nm, and the illumination intensity is 20 mw/cm 2 And (3) repeatedly washing for 2h to remove polysiloxane which is not grafted on the cotton fabric, so as to obtain the crease-resistant antibacterial functional cotton fabric.
Example 3
Ethylaminodiethylmercaptan (0.2 mol) and bromopropane (0.22 mol) were dissolved in 100ml of an ethanol solution and heated under reflux for 24 hours with magnetic stirring. After the reaction was complete, the ethanol was removed by rotary evaporation. And recrystallizing the crude product in ethanol, and drying at normal temperature in vacuum to obtain the dimercapto-functionalized quaternary ammonium salt. Dissolving 0.1mol of the product in 100ml of N, N-dimethylformamide, adding 0.002mol of catalyst DMPA and 0.22mol of methacryloxypropyltrimethoxysilane, and irradiating for 1h under 365nm ultraviolet light to obtain a quaternary ammonium salt functionalized double-end siloxane precursor C;
5g of the quaternary ammonium salt functionalized double-head siloxane precursor C and 0.03g of photobase initiator (2-nitrophenyl) methyl-4-hydroxypiperidine-1-tert-butyl formate are dissolved in acetone. The cleaned cotton fabric is soaked and pricked to make the mixture enter the interior of the cotton fabric; placing cotton fabric at 30 o C, after completely volatilizing the acetone in the oven, transferring the acetone to ultraviolet light for crosslinking, wherein the illumination wavelength is 395nm, and the illumination intensity is 20 mw/cm 2 And the time is 1h, and the polysiloxane which is not grafted on the cotton fabric is removed by repeated washing to obtain the crease-resistant antibacterial functional cotton fabric.
Example 4: performance testing
The relevant performances of the anti-wrinkle antibacterial type functional cotton fabric obtained in the embodiments 1 to 3 are respectively detected: determining the wrinkle recovery angle of the fabric according to the standard AATCC66-2006, and taking the average value of the sum of the wrinkle recovery angles in the warp direction and the weft direction; the breaking strength of the fabric is tested by a strip sample method by adopting the standard of national standard GB/T3923.1-1997, and then the breaking strength retention rate of the fabric is calculated by the ratio of the breaking strength of the finished fabric to the breaking strength of the unfinished fabric; according to the antibacterial test standard AATCC 100-2004, the antibacterial performance of the unfinished fabric and the finished fabric is evaluated, and the inoculated bacteria are selected from gram-positive bacteria representing staphylococcus aureus and gram-negative bacteria representing escherichia coli. The specific test results are shown in Table 1.
TABLE 1 results of the performance test of anti-wrinkle antibacterial cotton fabric prepared in different examples
As can be seen from Table 1, the cotton fabric processed by the method of the invention realizes excellent anti-wrinkle and antibacterial properties, and the cotton fabric is uniformly crosslinked, so that the cotton fabric has higher breaking strength retention rate.
The above embodiments are only for illustrating the technical idea and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the content of the present invention and implement the present invention, and not to limit the protection scope of the present invention by this means. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (8)
1. A crease-resistant antibacterial finishing method for cotton fabrics based on organic silicon resin is characterized by comprising the following steps:
s1: dissolving ethylaminodithioglycol and bromopropane in an ethanol solution, and heating and refluxing under magnetic stirring to react to prepare a dimercapto functional quaternary ammonium salt; dissolving the obtained dimercapto-functionalized quaternary ammonium salt in N, N-dimethylformamide, adding a catalyst DMPA and vinyl-functionalized organosiloxane, and carrying out catalytic reaction under ultraviolet irradiation to obtain a quaternary ammonium salt-functionalized double-end siloxane precursor;
s2: dissolving the quaternary ammonium salt functionalized double-end siloxane precursor prepared in the step S1 and a photobase initiator in acetone serving as a solvent to form a homogeneous mixed solution, and uniformly feeding the mixed solution into a cleaned cotton fabric through a dipping procedure; placing the soaked cotton fabric in an oven to completely volatilize acetone, transferring the cotton fabric to ultraviolet light for crosslinking, introducing quaternary ammonium salt with broad-spectrum antibacterial function while forming a crosslinking structure between amorphous cellulose in the cotton fabric, and removing polysiloxane which is not grafted on the cotton fabric through repeated washing to obtain the anti-wrinkle antibacterial cotton fabric.
2. The crease-resistant antibacterial finishing method for cotton fabrics based on organic silicon resin as claimed in claim 1, which is characterized in that: the vinyl functionalized organic siloxane in S1 is one or a mixture of more than two of the following structural compounds:
3. the crease-resistant antibacterial finishing method for cotton fabrics based on organic silicon resin as claimed in claim 1, which is characterized in that: the photobase initiator in S2 is one or a mixture of more than two of 9-anthracene methyl ester piperidine-1-tert-butyl formate, 9-anthracene methyl ester N, N-diethyl carbamate, (E) -N-cyclohexyl-3- (2-hydroxyphenyl) acrylamide and (2-nitrophenyl) methyl-4-hydroxypiperidine-1-tert-butyl formate.
4. The crease-resistant antibacterial finishing method for cotton fabrics based on organic silicon resin as claimed in claim 1, which is characterized in that: the molar ratio of the ethyl amino diethylmercaptan to the bromopropane in S1 is 1-1.2, the molar ratio of the dimercapto-functionalized quaternary ammonium salt, the vinyl-functionalized organosiloxane, and the catalyst DMPA is 1-2.2.
5. The crease-resistant antibacterial finishing method for cotton fabrics based on organic silicon resin as claimed in claim 1, which is characterized in that: the mass ratio of the quaternary ammonium salt functionalized double-head siloxane precursor to the photobase in S2 is 1.01-0.05.
6. The crease-resistant antibacterial finishing method for cotton fabrics based on organic silicon resin as claimed in claim 1, which is characterized in that: the heating reflux reaction time in the S1 is 20-24h, and the catalytic reaction is carried out under the irradiation of 365nm ultraviolet light for 1-2h.
7. The crease-resistant antibacterial finishing method for cotton fabrics based on organic silicon resin as claimed in claim 1, which is characterized in that: the wavelength of crosslinking in S2 under ultraviolet light is 254 nm, 365nm or 395nm, and the illumination intensity is 20 mw/cm 2 The time is 1-2h.
8. The crease-resistant antibacterial finishing method for cotton fabrics based on organic silicon resin as claimed in claim 1, which is characterized in that: and (2) after the heating reflux reaction in the S1 is finished, removing ethanol through rotary evaporation to obtain a crude product, recrystallizing the crude product in ethanol, and drying at normal temperature in vacuum to obtain the dimercapto functionalized quaternary ammonium salt.
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| CN111018904A (en) * | 2019-12-19 | 2020-04-17 | 福建拓烯新材料科技有限公司 | Preparation method of phenyl-containing cyclosiloxane and application of phenyl-containing cyclosiloxane in phenyl-containing polysiloxane |
| CN111153851A (en) * | 2019-02-01 | 2020-05-15 | 四川大学华西医院 | Quaternary ammonium salt compound and preparation method and application thereof |
| CN111393550A (en) * | 2020-04-01 | 2020-07-10 | 北京化工大学 | Method for improving toughness of photoinduced thiol-ene/siloxane organic-inorganic hybrid system |
| CN111978861A (en) * | 2020-09-01 | 2020-11-24 | 淮阴工学院 | Preparation method of phenyl polysiloxane super-hydrophobic coating |
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| CN110117364A (en) * | 2018-02-05 | 2019-08-13 | 北京化工大学 | A kind of light production acid/base catalysis mercaptan-alkene/siloxanes in-situ hybridization light reaction system |
| CN111153851A (en) * | 2019-02-01 | 2020-05-15 | 四川大学华西医院 | Quaternary ammonium salt compound and preparation method and application thereof |
| CN110655609A (en) * | 2019-04-30 | 2020-01-07 | 杭州肄康新材料有限公司 | Textile dye fixing agent and application thereof |
| CN111018904A (en) * | 2019-12-19 | 2020-04-17 | 福建拓烯新材料科技有限公司 | Preparation method of phenyl-containing cyclosiloxane and application of phenyl-containing cyclosiloxane in phenyl-containing polysiloxane |
| CN111393550A (en) * | 2020-04-01 | 2020-07-10 | 北京化工大学 | Method for improving toughness of photoinduced thiol-ene/siloxane organic-inorganic hybrid system |
| CN111978861A (en) * | 2020-09-01 | 2020-11-24 | 淮阴工学院 | Preparation method of phenyl polysiloxane super-hydrophobic coating |
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Denomination of invention: A method for wrinkle and antibacterial finishing of cotton fabrics based on organosilicon resin Granted publication date: 20231110 Pledgee: Jiangsu Hongze Rural Commercial Bank Co.,Ltd. Pledgor: Jiangsu natural wind Textile Co.,Ltd. Registration number: Y2024980022077 |