CN112359600A - Method for carrying out polyester lining cloth hydrophobic finishing based on surface grafting - Google Patents
Method for carrying out polyester lining cloth hydrophobic finishing based on surface grafting Download PDFInfo
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- CN112359600A CN112359600A CN202011273577.1A CN202011273577A CN112359600A CN 112359600 A CN112359600 A CN 112359600A CN 202011273577 A CN202011273577 A CN 202011273577A CN 112359600 A CN112359600 A CN 112359600A
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- polyester
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- lining cloth
- terylene
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- 229920000728 polyester Polymers 0.000 title claims abstract description 64
- 239000004744 fabric Substances 0.000 title claims abstract description 57
- 230000002209 hydrophobic effect Effects 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 35
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229920004933 Terylene® Polymers 0.000 claims abstract description 19
- 239000005020 polyethylene terephthalate Substances 0.000 claims abstract description 19
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims abstract description 19
- 229920002554 vinyl polymer Polymers 0.000 claims abstract description 18
- 239000000835 fiber Substances 0.000 claims abstract description 17
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 14
- 239000011737 fluorine Substances 0.000 claims abstract description 14
- 239000000178 monomer Substances 0.000 claims abstract description 12
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 claims abstract description 11
- 235000003891 ferrous sulphate Nutrition 0.000 claims abstract description 11
- 239000011790 ferrous sulphate Substances 0.000 claims abstract description 11
- 238000010559 graft polymerization reaction Methods 0.000 claims abstract description 11
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims abstract description 11
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims abstract description 11
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims abstract description 10
- 102000004190 Enzymes Human genes 0.000 claims abstract description 7
- 108090000790 Enzymes Proteins 0.000 claims abstract description 7
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 6
- 230000004048 modification Effects 0.000 claims abstract description 4
- 238000012986 modification Methods 0.000 claims abstract description 4
- 238000006136 alcoholysis reaction Methods 0.000 claims abstract description 3
- 230000003301 hydrolyzing effect Effects 0.000 claims abstract description 3
- 230000000977 initiatory effect Effects 0.000 claims abstract description 3
- 229920002521 macromolecule Polymers 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 230000008569 process Effects 0.000 claims description 16
- 238000004140 cleaning Methods 0.000 claims description 12
- 239000008367 deionised water Substances 0.000 claims description 12
- 229910021641 deionized water Inorganic materials 0.000 claims description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 8
- VBHXIMACZBQHPX-UHFFFAOYSA-N 2,2,2-trifluoroethyl prop-2-enoate Chemical compound FC(F)(F)COC(=O)C=C VBHXIMACZBQHPX-UHFFFAOYSA-N 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 238000007730 finishing process Methods 0.000 claims description 6
- QTKPMCIBUROOGY-UHFFFAOYSA-N 2,2,2-trifluoroethyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCC(F)(F)F QTKPMCIBUROOGY-UHFFFAOYSA-N 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 239000000839 emulsion Substances 0.000 claims description 5
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 4
- 239000003995 emulsifying agent Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000002791 soaking Methods 0.000 claims description 4
- DEQJNIVTRAWAMD-UHFFFAOYSA-N 1,1,2,4,4,4-hexafluorobutyl prop-2-enoate Chemical compound FC(F)(F)CC(F)C(F)(F)OC(=O)C=C DEQJNIVTRAWAMD-UHFFFAOYSA-N 0.000 claims description 2
- ZYMKZMDQUPCXRP-UHFFFAOYSA-N fluoro prop-2-enoate Chemical compound FOC(=O)C=C ZYMKZMDQUPCXRP-UHFFFAOYSA-N 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000004383 yellowing Methods 0.000 abstract description 4
- 238000004043 dyeing Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 239000004753 textile Substances 0.000 abstract description 3
- 229920001567 vinyl ester resin Polymers 0.000 abstract 1
- 238000009736 wetting Methods 0.000 description 7
- 239000006087 Silane Coupling Agent Substances 0.000 description 4
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 150000003868 ammonium compounds Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010170 biological method Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- -1 polysiloxane Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 238000005406 washing Methods 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
- D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
- D06M16/003—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic with enzymes or microorganisms
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/50—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with organometallic compounds; with organic compounds containing boron, silicon, selenium or tellurium atoms
- D06M13/51—Compounds with at least one carbon-metal or carbon-boron, carbon-silicon, carbon-selenium, or carbon-tellurium bond
- D06M13/513—Compounds with at least one carbon-metal or carbon-boron, carbon-silicon, carbon-selenium, or carbon-tellurium bond with at least one carbon-silicon bond
- D06M13/5135—Unsaturated compounds containing silicon atoms
-
- 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
- D06M2200/10—Repellency against liquids
- D06M2200/12—Hydrophobic properties
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/25—Resistance to light or sun, i.e. protection of the textile itself as well as UV shielding materials or treatment compositions therefor; Anti-yellowing treatments
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Microbiology (AREA)
- Inorganic Chemistry (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention discloses a method for carrying out polyester lining cloth hydrophobic finishing based on surface grafting, and belongs to the technical field of textile dyeing and finishing. Firstly, polyester lining cloth is pretreated by means of polyesterase, and the number of hydroxyl groups on the surface of polyester fibers is increased by hydrolyzing ester bonds in polyester macromolecules; performing terylene modification by means of alcoholysis of vinyl triethoxy silane, and grafting vinyl on the surface of terylene; and finally, initiating the fluorine-containing vinyl monomer to perform graft polymerization with vinyl on the terylene by means of ferrous sulfate and hydrogen peroxide, so as to realize the hydrophobic finishing of the terylene interlining. The method comprises the following specific steps: polyester enzyme pretreatment, polyester grafting vinyl, and polyester and fluorine-containing acrylate monomer graft polymerization. Compared with the traditional high-temperature baking hydrophobic finishing method, the method has the advantages of good finishing effect, less yellowing of cloth cover and lower production energy consumption.
Description
Technical Field
The invention relates to a method for carrying out polyester lining cloth hydrophobic finishing based on surface grafting, belonging to the technical field of textile dyeing and finishing.
Background
Polyester fiber is the most common synthetic fiber raw material and is widely applied to household clothes, sports clothes and outdoor textiles. Compared with natural fiber, the polyester fiber product has stronger single fiber strength, soft hand feeling and excellent size stability. In recent years, consumers have made demands on the functionality of outdoor equipment (such as tents and travelling bags) and clothing (such as cold protective clothing and outdoor jacket) which are processed by polyester fabrics, and the fabrics are required to have good appearance and hand feeling, good hydrophobic effect and improvement of the adaptability of the fabrics in outdoor rainy weather. Although the terylene has strong hydrophobicity, the lining cloth processed by the terylene as the raw material can not meet the hydrophobic requirement, and the problems of slurry seepage and the like are easily generated in the process of compounding the lining cloth with the fabric, thereby influencing the appearance and the flatness of the cloth cover. Therefore, in order to expand the application range of the polyester lining cloth, hydrophobic finishing is necessary to be carried out on the polyester lining cloth.
The polyester lining cloth hydrophobic finishing mostly adopts a fabric after-finishing method, and can be divided into non-durable finishing and durable hydrophobic finishing according to the characteristics of a hydrophobic agent. Wherein, the non-durable hydrophobic finishing is to prepare finishing liquid by paraffin soap emulsion and the like, and finish the finishing liquid by padding and drying; the durable hydrophobic finishing comprises the steps of applying finishing agents such as a fatty acid chromium complex, an ammonium compound of long-chain aliphatic hydrocarbon, linear polysiloxane and organic fluorine to the surface of the polyester fiber by a method such as padding baking, high-temperature bonding or coating finishing, or forming a film on the surface of the polyester fiber, so that the durable hydrophobic finishing has better washing fastness.
In the actual dyeing and finishing production, durable hydrophobic finishing is mostly carried out on a continuous stentering and setting machine, and is carried out by padding a water repellent finishing agent and then baking at high temperature. Due to the fact that the treatment temperature in the baking process is high, the hydrophobic effect is given to the fabric, and meanwhile, the defects that fiber strength is easy to damage, the fabric is yellow or the hand feeling is poor exist. Therefore, how to optimize the hydrophobic finishing process is a research focus for hydrophobic finishing at present, and the polyester lining cloth has a hydrophobic effect, and meanwhile, the production energy consumption in the finishing process can be reduced to the maximum extent, and the phenomena of fiber damage, yellowing and the like are reduced.
Disclosure of Invention
In order to solve the problems, the invention provides a method for carrying out hydrophobic finishing on polyester lining cloth based on surface grafting, aiming at realizing the hydrophobic finishing on the polyester lining cloth under a milder condition, reducing the production energy consumption and the yellowing of fibers, improving the durability of the finishing effect and achieving the aim of optimizing the hydrophobic finishing effect.
The technical scheme of the invention is as follows: a method for carrying out hydrophobic finishing on polyester lining cloth based on surface grafting is characterized in that polyester lining cloth is pretreated by means of polyesterase, and the number of hydroxyl groups on the surface of polyester fibers is increased by hydrolyzing ester bonds in polyester macromolecules; performing terylene modification by means of alcoholysis of vinyl triethoxy silane, and grafting vinyl on the surface of terylene; and finally, initiating a fluorine-containing vinyl monomer and vinyl on the terylene to generate graft polymerization by virtue of ferrous sulfate and hydrogen peroxide so as to realize hydrophobic finishing of the terylene interlining, wherein the specific process comprises the following steps:
(1) polyester enzyme pretreatment: carrying out pretreatment on the polyester lining cloth by using polyesterase, and cleaning by using deionized water after the treatment;
the processing process prescription and conditions are as follows: 2-5U/mL of polyesterase, 0.5-5 g/L of penetrating agent, 7.0-9.0 of pH value, 30-50 ℃ of temperature and 1-4 hours of treatment time;
(2) polyester grafted vinyl: treating the polyester lining cloth treated in the step (1) with vinyl triethoxysilane, and cleaning with deionized water after treatment;
the processing process prescription and conditions are as follows: vinyltriethoxysilane: water: ethanol = 1: 1-3: 3-5, the treatment temperature is 25-40 ℃, the pH range is 9-10, and the bath ratio is 1: 8-15 hours for 1-4 hours;
(3) carrying out graft polymerization on terylene and fluorine-containing acrylate monomer: soaking the polyester lining cloth treated in the step (2) in emulsion of ferrous sulfate, hydrogen peroxide and fluorine-containing acrylate for hydrophobic finishing, cleaning with deionized water after finishing, and drying at 100 ℃;
the finishing process prescription and conditions are as follows: 2-6 g/L of ferrous sulfate, 1-2.5 g/L of hydrogen peroxide, 2.5-5 g/L of fluorine-containing acrylate, 0.5-1 g/L of emulsifier sodium dodecyl sulfate, treatment temperature of 60-70 ℃, pH of 3-4, bath ratio of 1: 8-15 hours for 1-2 hours.
The method of claim 1, wherein the fluoroacrylate monomers comprise trifluoroethyl acrylate, hexafluorobutyl acrylate, and trifluoroethyl methacrylate.
Has the advantages that:
according to the invention, polyester lining cloth is pretreated by a polyesterase biological method, and then grafted with a vinyl monomer and then grafted and polymerized with a fluorine-containing acrylate monomer, so that the polyester lining cloth is endowed with a hydrophobic effect. Compared with the hydrophobic finishing based on the traditional high-temperature baking method, the invention has the following advantages:
(1) polyester enzyme is adopted to treat polyester fiber to generate hydroxyl, and vinyl is introduced on the surface of the polyester fiber by combining with a silane coupling agent for further graft polymerization with fluorine-containing acrylate, so that the reaction conditions in the process are mild, the polyester lining cloth not only has a good hydrophobic effect, but also avoids the problems of poor fabric hand feeling or yellowing of cloth cover caused by the conventional high-temperature baking finishing method;
(2) the method can realize hydrophobic finishing of the polyester lining cloth under low-temperature and slow conditions, and the production energy consumption required in finishing is low.
The specific implementation mode is as follows:
the specific embodiment of adopting polyester enzyme method for pretreatment, combining a silane coupling agent method to graft vinyl on the surface of the terylene, then carrying out graft polymerization with the fluorine-containing acrylate, and carrying out hydrophobic finishing on the terylene interlining is as follows:
example 1:
(1) polyester enzyme pretreatment: carrying out pretreatment on the polyester lining cloth by using polyesterase, and cleaning by using deionized water after the treatment;
the processing process prescription and conditions are as follows: 2U/mL of polyesterase, 0.5 g/L of penetrating agent, 7.0 pH value, 30 ℃ and 1 hour of treatment time;
(2) polyester grafted vinyl: treating the polyester lining cloth treated in the step (1) with vinyl triethoxysilane, and cleaning with deionized water after treatment;
the processing process prescription and conditions are as follows: vinyltriethoxysilane: water: ethanol = 1: 1: 3, treatment temperature 25 ℃, pH 9, bath ratio 1: 8, the time is 1 hour;
(3) carrying out graft polymerization on terylene and trifluoroethyl acrylate monomers: soaking the polyester lining cloth treated in the step (2) in emulsion of ferrous sulfate, hydrogen peroxide and trifluoroethyl acrylate for hydrophobic finishing, cleaning with deionized water after finishing, and drying at 100 ℃;
the finishing process prescription and conditions are as follows: 2 g/L of ferrous sulfate, 1.5 g/L of hydrogen peroxide, 2.5 g/L of trifluoroethyl acrylate, 0.5 g/L of emulsifier sodium dodecyl sulfate, 60 ℃ of treatment temperature, 3 of pH value and 1 of bath ratio: and 8, the time is 1 hour.
Sample 1: treating the sample by the step (3) without the treatment of the steps (1) and (2);
sample 2: treating the sample by the steps (2) and (3) without the step (1);
sample 3: processing by steps (1), (2) and (3);
after the treatment by the process, respectively measuring the surface wetting contact angle, the fabric wetting grade and the fabric whiteness of the sample 1-3; wherein the surface contact angle of the sample 1 is 12 degrees, the water wetting grade is 1 grade, and the fabric whiteness is 80 percent; the surface contact angle of the sample 2 is 65 degrees, the wetting grade is 2 grade, and the fabric whiteness is 82 percent; the surface contact angle of sample 3 was 128 °, the pick-up rating was 4, and the fabric whiteness was 81%. The result shows that compared with the sample 1 and the sample 2, the sample 3 has higher whiteness and large surface contact angle, and shows that the hydrophobic effect is better, so that hydroxyl generated by polyester hydrolysis through polyesterase can be grafted with vinyl through a silane coupling agent, the grafting polymerization on the surface of polyester fiber is promoted to form the poly (trifluoroethyl acrylate), and the hydrophobic finishing of the polyester lining cloth is facilitated.
Example 2:
(1) polyester enzyme pretreatment: carrying out pretreatment on the polyester lining cloth by using polyesterase, and cleaning by using deionized water after the treatment;
the processing process prescription and conditions are as follows: 5U/mL of polyesterase, 5 g/L of penetrating agent, 9.0 of pH, 50 ℃ of temperature and 4 hours of processing time;
(2) polyester grafted vinyl: treating the polyester lining cloth treated in the step (1) with vinyl triethoxysilane, and cleaning with deionized water after treatment;
the processing process prescription and conditions are as follows: vinyltriethoxysilane: water: ethanol = 1: 3: 5, treatment temperature of 40 ℃, pH 10, bath ratio of 1: 15, time 4 hours;
(3) carrying out graft polymerization on terylene and trifluoroethyl methacrylate monomers: soaking the polyester lining cloth treated in the step (2) in emulsion of ferrous sulfate, hydrogen peroxide and trifluoroethyl methacrylate for hydrophobic finishing, cleaning with deionized water after finishing, and drying at 100 ℃;
the finishing process prescription and conditions are as follows: 6 g/L of ferrous sulfate, 2.5 g/L of hydrogen peroxide, 5 g/L of trifluoroethyl methacrylate, 1 g/L of emulsifier sodium dodecyl sulfate, a treatment temperature of 70 ℃, a pH value of 4, a bath ratio of 1: 15, time 2 hours.
Sample 4: treating the sample by the step (3) without the treatment of the steps (1) and (2);
sample 5: treating the sample by the steps (2) and (3) without the step (1);
sample 6: processing by steps (1), (2) and (3);
after the treatment by the process, respectively measuring the surface wetting contact angle, the fabric wetting grade and the fabric whiteness of the sample 4-6; wherein the surface contact angle of the sample 4 is 15 degrees, the water dipping grade is 1 grade, and the fabric whiteness is 80 percent; the surface contact angle of the sample 5 is 71 degrees, the wetting grade is 2 grade, and the fabric whiteness is 82 percent; the contact angle of the surface of sample 6 was 155 °, the pick-up rating was 5, and the fabric whiteness was 80%. The results show that compared with samples 4 and 5, sample 6 has higher whiteness and better fabric hydrophobic effect, and that hydroxyl generated by polyester hydrolysis through polyesterase is beneficial to grafting vinyl through a silane coupling agent, so that the formation of poly (trifluoroethyl acrylate) on the surface of polyester fiber through graft polymerization is promoted.
Through the data analysis of the embodiment, the terylene lining cloth treated by the process of the invention not only has improved hydrophobic property, but also has higher whiteness.
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 (2)
1. A method for carrying out hydrophobic finishing on polyester lining cloth based on surface grafting is characterized in that polyester lining cloth is pretreated by means of polyesterase, and the number of hydroxyl groups on the surface of polyester fibers is increased by hydrolyzing ester bonds in polyester macromolecules; performing polyester modification by means of alcoholysis of vinyl triethoxy silane, and grafting vinyl on the surface of polyester fiber; and finally, initiating a fluorine-containing vinyl monomer and vinyl introduced on the terylene to carry out graft polymerization by means of ferrous sulfate and hydrogen peroxide so as to realize hydrophobic finishing of the terylene interlining, wherein the specific process comprises the following steps:
(1) polyester enzyme pretreatment: carrying out pretreatment on the polyester lining cloth by using polyesterase, and cleaning by using deionized water after the treatment;
the processing process prescription and conditions are as follows: 2-5U/mL of polyesterase, 0.5-5 g/L of penetrating agent, 7.0-9.0 of pH value, 30-50 ℃ of temperature and 1-4 hours of treatment time;
(2) polyester grafted vinyl: treating the polyester lining cloth treated in the step (1) with vinyl triethoxysilane, and cleaning with deionized water after treatment;
the processing process prescription and conditions are as follows: vinyltriethoxysilane: water: ethanol = 1: 1-3: 3-5; the treatment temperature is 25-40 ℃, the pH range is 9-10, and the bath ratio is 1: 8-15 hours for 1-4 hours;
(3) carrying out graft polymerization on terylene and fluorine-containing acrylate monomer: soaking the polyester lining cloth treated in the step (2) in emulsion of ferrous sulfate, hydrogen peroxide and fluorine-containing acrylate for hydrophobic finishing, cleaning with deionized water after finishing, and drying at 100 ℃;
the finishing process prescription and conditions are as follows: 2-6 g/L of ferrous sulfate, 1-2.5 g/L of hydrogen peroxide, 2.5-5 g/L of fluorine-containing acrylate, 0.5-1 g/L of emulsifier sodium dodecyl sulfate, treatment temperature of 60-70 ℃, pH of 3-4, bath ratio of 1: 8-15 hours for 1-2 hours.
2. The method of claim 1, wherein the fluoroacrylate monomers comprise trifluoroethyl acrylate, hexafluorobutyl acrylate, and trifluoroethyl methacrylate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011273577.1A CN112359600A (en) | 2020-11-14 | 2020-11-14 | Method for carrying out polyester lining cloth hydrophobic finishing based on surface grafting |
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| CN202011273577.1A CN112359600A (en) | 2020-11-14 | 2020-11-14 | Method for carrying out polyester lining cloth hydrophobic finishing based on surface grafting |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112981952A (en) * | 2021-03-02 | 2021-06-18 | 浙江航民股份有限公司 | Method for improving dyeing depth and color fastness of terylene through graft polymerization |
| CN113005781A (en) * | 2021-03-29 | 2021-06-22 | 江南大学 | Conductive fabric processing method based on cascade catalytic graft polymerization |
-
2020
- 2020-11-14 CN CN202011273577.1A patent/CN112359600A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112981952A (en) * | 2021-03-02 | 2021-06-18 | 浙江航民股份有限公司 | Method for improving dyeing depth and color fastness of terylene through graft polymerization |
| CN113005781A (en) * | 2021-03-29 | 2021-06-22 | 江南大学 | Conductive fabric processing method based on cascade catalytic graft polymerization |
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