CN103147290B - Functional nano textile and preparation method thereof - Google Patents
Functional nano textile and preparation method thereof Download PDFInfo
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- CN103147290B CN103147290B CN201310074045.9A CN201310074045A CN103147290B CN 103147290 B CN103147290 B CN 103147290B CN 201310074045 A CN201310074045 A CN 201310074045A CN 103147290 B CN103147290 B CN 103147290B
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Abstract
The invention discloses a functional nano textile and a preparation method thereof. The preparation method of the functional nano textile comprises the following steps: (1) in an organic solvent, reacting inorganic nanoparticles containing hydroxyl on the surface with a compound containing a group and carbon-carbon double bonds, to obtain modified inorganic nanoparticles, wherein the group can react with the hydroxyl; (2) conducting graft copolymerization on the modified inorganic nanoparticles obtained in step (1), monomers A and textiles, thereby obtaining the functional nano textile. According to the preparation method, the addition of a bonding agent, resin or a cross-linking agent is not required, the handfeeling, air and water vapor permeability and other properties can be furthest kept, and the preparation method is suitably used for garment textiles, is lower in cost and suitable for batch production. The functional nano textile has excellent washing resistance and excellent wear resistance, and is durable in functions.
Description
Technical field
The present invention is specifically related to a kind of Functional nano textile and preparation method thereof.
Background technology
Nano material makes a general reference the material of any type be made up of nano-sized building blocks, also monocrystal or polycrystal, cluster and particle that particle size is less than 100nm is comprised, it is conventional material leap from quantitative change to qualitative change dimensionally, have the incomparable feature of conventional material and function, range of application has related to industry-by-industry and field.In recent years, nano material has caused the very big concern of national governments and every profession and trade as a kind of novel textile function finishing agent, one of study hotspot becoming 21 century.Nano material brings new vigor and vitality to textile limit, utilizes the new textile that nanometer technology manufactures, and impels traditional textile industry to transform to high-tech industry, serves huge impetus to textile industry scientific and technological progress.But as textile industry closely-related with human lives, applications to nanostructures is just at the early-stage, high-tech nano material is introduced textile industry, develop new textile product that is multi-functional, high added value, the technology competition level of China's textile industry can be improved, bring revolutionary breakthrough and wide living space to textile industry.
The preparation method of the Functional nano textile reported has been summed up several as follows:
1, blending type, is namely mixed into functional nanoparticles on polymerization, spinning phase.Blending type comprises solution blending and melt blended two kinds of methods: 1. utilize the preparation process of solution blending process to be that backing compound is dissolved in suitable solvent, then add nano particle, carry out polymerisation after mixing, then carry out spinning process; 2. utilize melt-mixing method to be add nano particle in polymer spinning process, prepare functional fibre.
Although mixed type technique can obtain persistent effect, in spinning process nano particle easily assemble, difficulties in dispersion, easily block spinneret orifice, cause production difficulty to increase, fibre property decline; In addition, blending method is only applicable to the production of chemical fibre, cannot be used for Nature Fibre Textile product, have some limitations.
2, Final finishing type, namely carries out adsorbing or set functional nanoparticles in the Final finishing stage of fabric.Final finishing type technique is mainly divided into three kinds: 1. nano particle directly joins in after-finishing of textile products agent as solid matter; 2. textile finishing is used for by after the emulsion of nano particle and after-finishing of textile products agent Homogeneous phase mixing; 3. under the existence of adhesive, be coated to textile surface, form functional coat.
Final finishing type because of technological operation simple, the basis not changing original production process flow process and equipment is given textiles specific function, be applicable to the batch production of functional product, become the method for conventional production Functional nano textile, be especially applicable to the finishing functions of Nature Fibre Textile product.
But, mostly be in Final finishing type technique that nano material is attached on textiles by the effect by adhesive, resin or crosslinking agent, the fastness of this physical bond mode is weak, poor durability, function can not be lasting, and the obtained wearability such as product feel, air-moisture-permeable also can decline greatly.
Summary of the invention
Technical problem to be solved by this invention is to overcome in existing Functional nano textile, the problems such as nano particle and textiles binding strength is weak, poor durability, function are not lasting, product wearability difference, and provide a kind of Functional nano textile and preparation method thereof.Preparation method of the present invention, without the need to adding adhesive, resin or crosslinking agent, at utmost maintains the performances such as the feel of former textiles, air-moisture-permeable, be suitable for taking fabric, and cost is lower, is applicable to batch production.Functional nano textile of the present invention has excellent wash resistant, scratch-resistant performance, and function is lasting.
The invention provides a kind of preparation method of Functional nano textile, it comprises the following step:
Step (1): in organic solvent, contains the inorganic nano-particle of hydroxyl by surface, and containing can react with the compound of the group of hydroxyl reaction and carbon-carbon double bond (C=C), obtain the inorganic nano-particle after modification; Wherein, described can with the group of hydroxyl reaction be carboxyl,
c
1~ C
12alkyl-oxygen carbonyl, C
1~ C
12alkyl-carbonyl oxygen base, ClCO-,
or epoxy radicals; Described compound contains at least one above-mentioned group and contains at least one carbon-carbon double bond (C=C); The inorganic nano-particle that hydroxyl is contained on described surface is nano-TiO
2, nano-ZnO, Nano-meter SiO_2
2, nanometer Al
2o
3, nano-MgO and nanometer ZrO
2in any one; The particle diameter of described inorganic nano-particle is between 1 ~ 100nm; Described organic solvent is one or more in methyl alcohol, ethanol, isopropyl alcohol, acetone, oxolane, dioxane, DMF, DMA, METHYLPYRROLIDONE, toluene and dimethylbenzene;
Step (2): inorganic nano-particle, monomer A and textiles after the modification obtained by step (1) carry out graft copolymerization; Wherein, described monomer A is one or more in styrene, acrylonitrile, acrylic acid, esters of acrylic acid, methacrylic acid, methyl acrylic ester, acrylamide, NIPA, vinylpyridine and vinyl pyrrolidone; Described textiles is the fabric or non-weaving cloth that are obtained by natural fabric and/or synthetic fiber.
In step (1), described organic solvent is preferably toluene or dimethylbenzene.The volume mass of organic solvent and described inorganic nano-particle is 10ml/g ~ 100ml/g than preferably.The proportioning of described inorganic nano-particle and described compound be preferably mol ratio 1:0.5 ~ 1:20(better be 1:1 ~ 1:10).The temperature of described reaction is preferably 4 ~ 180 DEG C (further preferably 60 ~ 140 DEG C).The time of described reaction is generally 0.5 ~ 72 hour.
In step (1), described containing can be preferably one or more in maleic anhydride, acrylic acid, methyl acrylate, acryloyl chloride, glycidyl methacrylate ester and hydroxy propyl methacrylate with the compound of the group of hydroxyl reaction and carbon-carbon double bond (C=C).
In step (2), described natural fabric is preferably one or more in cotton, hair, silk and flax fibre.Described synthetic fiber are preferably one or more in nylon, terylene, polypropylene fibre, acrylic fibers, polyvinyl, spandex, polyethylene, polyvinyl chloride, aromatic polyamide, aromatic polyester, polysulfones, polyether sulfone, polyether-ketone, polyether-ether-ketone, Kynoar, polystyrene, Merlon and cellulose fibre.
In step (2), the method for described graft copolymerization and condition all can be conventional method and the condition of this type of reaction of this area, and the polymerization methods in described graft copolymerization can be bulk polymerization, suspension polymerization, polymerisation in solution or emulsion polymerisation.The initiation method of graft copolymerization can be that radiation causes (can be pre-irradiation grafting or co-irradiation grafting), plasma causes, chemical initiator causes or ultraviolet light causes.The mass ratio of the inorganic nano-particle after the modification that described monomer A and step (1) obtain is preferably 100:1 ~ 0.1:1.The mass ratio of the inorganic nano-particle after the modification that described textiles and step (1) obtain is preferably 1:0.1 ~ 1:10.
According to the present invention, in step (2), the mode of graft copolymerization can be bulk polymerization, dispersin polymerization, polymerisation in solution or emulsion polymerisation.It distinguishes the existing way of monomer when being graft copolymerization, and directly rear particle and textiles carry out graft reaction with modification for bulk polymerization and pure monomer; Suspension polymerization is that monomer suspends in water with droplet state, rear inorganic nano-particle and textiles carry out graft copolymerization with modification again, monomer suspend compound method also for by monomer, dispersant (dispersant be this area common dispersants as Sodium Polyacrylate, calcium phosphate etc., no longer itemize) and water under stirring, be made into suspension; Polymerisation in solution monomer is dissolved in solvent (depending on the solubility property of different monomers, solvent can be water, alcohols, acetone, oxolane, N, dinethylformamide, N, N-dimethylacetylamide, METHYLPYRROLIDONE, toluene, dimethylbenzene, dioxane, methyl-sulfoxide etc., no longer itemize) in, rear inorganic nano-particle and textiles carry out graft copolymerization with modification in the form of a solution; Emulsion polymerisation be monomer also emulsion form solution form with modify after inorganic nano-particle and textiles carry out graft copolymerization, the manner of formulation of emulsion is monomer, (emulsifying agent is that emulsifying agent is commonly used as Tweens, spans, softex kw, dodecyl sodium sulfate in this area to emulsifying agent.Lauryl sodium sulfate, neopelex etc., no longer itemize) and water under stirring, be made into emulsion.
According to the present invention, the initiation method of graft copolymerization can be that radiation causes (can be pre-irradiation grafting or co-irradiation grafting), plasma causes, chemical initiator causes or ultraviolet light causes, and is described as follows.
In the present invention, the copolymerization of radiation initiation grafting is the method for this area routine, can be pre-irradiation grafting or co-irradiation grafting.Pre-irradiation grafting method can comprise the following steps: by textiles in air or oxygen or oxygen-free atmosphere, utilize gamma-rays or electron beam irradiation 5 ~ 100kGy, then the suspension of the inorganic nano-particle after modification and monomer A, the solution of monomer A, the emulsion of monomer A or monomer A is immersed in, or be immersed in the mixed liquor of (solution, emulsion, suspension preparation method are as described above) in the inorganic nano-particle after modification and monomer A solution or emulsion, under nitrogen or atmosphere of inert gases, temperature is reacted 0.5 ~ 12 hour at 25 ~ 95 DEG C, namely.Co-irradiation grafting method can comprise the following steps: pad in the mixed liquor of the suspension (solution, emulsion, suspension preparation method are as described above) of the inorganic nano-particle of textiles after modification and monomer A, the solution of monomer A, the emulsion of monomer A or monomer A, subsequently in air or anaerobic atmosphere, with gamma-rays or electron beam irradiation to 5 ~ 100kGy, to obtain final product.
Plasma grafting method of the present invention is the method for this area routine, can be pre-irradiation grafting or co-irradiation grafting.Be preferably: pre-irradiation grafting: by textiles in air or oxygen or oxygen-free atmosphere, irradiate 0.5 ~ 20 minute under power 20 ~ 500W with plasma, subsequently illuminated textiles is immersed in the mixed liquor of suspension (solution, emulsion, suspension preparation method are as described above) of the inorganic nano-particle after modification and monomer A, the solution of monomer A, the emulsion of monomer A or monomer, in air or anaerobic atmosphere, temperature is reacted 0.5 ~ 12 hour at 25 ~ 95 DEG C, to obtain final product; Co-irradiation grafting: pad in the mixed liquor of textiles suspension of inorganic nano-particle and monomer A, the solution of monomer A, the emulsion of monomer A or monomer A after modification, subsequently in air or anaerobic atmosphere, irradiate 0.5 ~ 30 minute under power 20 ~ 1000w with plasma, to obtain final product.
According to the present invention, described chemical graft process is the method for this area routine.Preferably comprise the following steps: textiles is immersed in the inorganic nano-particle after modification, initator and monomer A, the solution of monomer A, the emulsion of monomer A or monomer A suspension mixed liquor in, 30 ~ 150 DEG C of reactions 2 ~ 24 hours, to obtain final product.Initator is that polymerisation commonly uses initator, such as ammonium persulfate or dibenzoyl peroxide (BPO) or azodiisobutyronitrile (AIBN) etc.
UV photoinitiated grafting method of the present invention is the method for this area routine.Two kinds can be divided into, not add light trigger or photosensitizer or add light trigger or photosensitizer.Preferably comprise the following steps: do not add light trigger or photosensitizer: be applicable to the textiles that silk etc. contains carbonyl, textiles is immersed in the mixed liquor of the suspension of inorganic nano-particle and monomer A, the solution of monomer A, the emulsion of monomer A or monomer A after modifying, with UV-irradiation 10 minutes ~ 3 hours, to obtain final product.Add light trigger or photosensitizer: be applicable to all kinds textiles, textiles is immersed in the mixed liquor of the suspension of inorganic nano-particle, light trigger or photosensitizer and monomer A, the solution of monomer A, the emulsion of monomer A or monomer after modifying, with UV-irradiation 10 minutes ~ 3 hours, to obtain final product.The light trigger used and photosensitizer are the conventional light trigger in this area or photosensitizer, as benzoin and derivative, benzophenone, anthrone class or acyl group phosphorous oxides etc., no longer itemize.
Percent grafting after textiles described in the present invention and the inorganic nano-particle after modifying, monomer A carry out graft copolymerization can reach 0.5 ~ 500%(wt), be preferably 5 ~ 100%(wt), the inorganic nano-particle content after modification can be 0.1 ~ 10%(wt).
Invention further provides the Functional nano textile obtained by the preparation method of above-mentioned functions nano-fabric.
Without prejudice to the field on the basis of common sense, above-mentioned each optimum condition, can be combined, obtain the preferred embodiments of the invention.
Agents useful for same of the present invention and raw material are all commercially.
Positive progressive effect of the present invention is:
1, inorganic nano-particle is attached on textiles in the mode of covalent bond by the present invention, and binding strength is strong, and have excellent wash resistant, scratch-resistant performance, function is lasting.
2, the present invention is without the need to adding adhesive, resin or crosslinking agent in preparation Functional nano textile process, at utmost maintains the performances such as the feel of former textiles, air-moisture-permeable, is suitable for taking fabric.
3, method of the present invention is simple, and cost is lower, is applicable to batch production, is easy to promote.
Accompanying drawing explanation
Fig. 1 a is in effect example 1, nano-TiO
2the scanning electron microscope (SEM) photograph of-COTTON FABRIC before family's 250 washings.
Fig. 1 b is in effect example 1, nano-TiO
2the scanning electron microscope (SEM) photograph of-COTTON FABRIC after family's 250 washings.
Fig. 2 uses thermogravimetric analysis (TG) to the TiO that the cotton before and after washing is modified in effect example 1
2mass percent carry out the data result figure that measures.Wherein, abscissa is that three samples obtained in embodiment 1 (are followed successively by TiO from left to right
2content is respectively the product of 4.2%, 1.7% and 0.9%), before black and white is respectively washing and after washing, ordinate is the TiO on cotton
2content; Wash the TiO of first three sample
2content is respectively 4.2%, 1.7% and 0.9%, TiO after washing
2changes of contents is little.
Fig. 3 is in effect example 2, to pure cotton fabric and nano-TiO
2the photocatalytic self-cleaning effect of-COTTON FABRIC carries out the design sketch tested.
Detailed description of the invention
Mode below by embodiment further illustrates the present invention, but does not therefore limit the present invention among described scope of embodiments.The experimental technique of unreceipted actual conditions in the following example, conventionally and condition, or selects according to catalogue.
Embodiment 1 functional nano TiO
2the preparation of-COTTON FABRIC
By 10g(0.13mol) nano-TiO
2particle, 20g(0.2mol) maleic anhydride, 0.05g sodium acetate join in 300mL xylene solution, be warming up to 120 DEG C of stirring reactions 2 hours, obtain the nano-TiO that C=C double bond is modified
2particle; By the COTTON FABRIC of 10 × 10cm, (weight is w
0) nano-TiO after the modification of the 5wt% of 200mL
2after padding three times in the acrylic acid methanol solution of particle, 10wt%, utilize gamma-ray irradiation that cobalt source produces to 30kGy in an oxygen-free atmosphere, record COTTON FABRIC weight w after reaction by weight method
1, use thermogravimetric analysis (TG) to test products therefrom, be warming up to 600 DEG C by 50 DEG C, residual weight is the TiO on modifying
2weight w
2, then the TiO on modifying
2mass percent be w
2/ w
1* 100%, acrylic acid percent grafting is (w
2-w
1)/w
0* 100%, calculate as obtaining the functional nano TiO that percent grafting is 59% with this
2-COTTON FABRIC, wherein functionalized modification nano-TiO
2content is 4.2%(wt).
By above-mentioned steps, other reaction conditions are identical, and irradiation dose is the TiO that the modified COTTON FABRIC that obtains of 10kGy and 20kGy is modified
2mass percent be respectively 0.9% and 1.7%, acrylic acid-grafted rate is respectively 18% and 31%.
(nano-TiO
2be purchased from Aladdin reagent Co., Ltd, other reagent are purchased from Shanghai Reagent Company of traditional Chinese medicines group)
Embodiment 2 functional nano ZnO
2the preparation of-nylon fabrics
By 10g(0.10mol) nano-ZnO
2particle, 7.2g(0.1mol) acrylic acid, 0.05g sodium acetate join in 300mL tetrahydrofuran solution, be warming up to 70 DEG C of stirring reactions 3 hours, obtain C=C double bond decorated nanometer ZnO
2particle; 10wt%, to 60kGy, is modified rear nano-ZnO by the gamma-ray irradiation utilizing cobalt source to produce in air atmosphere 5 × 5cm nylon fabrics
2particle, 20wt% hydroxy-ethyl acrylate, 1wt% Tween-20 and 74wt% water are made into emulsion under stirring; nylon fabrics after irradiation is immersed in emulsion; under the condition of nitrogen protection, be warming up to 75 DEG C of reactions and within 2 hours, obtain the functional nano ZnO that percent grafting is 32%
2-nylon fabrics, wherein functionalized modification nano-ZnO
2content is 7.7%(wt).(monomer-grafted rate and the nano particle mass percent method of testing of modifying are with embodiment 1)
By above-mentioned steps, other reaction conditions are identical, nano-ZnO after being modified by 30wt%
2particle, 0.3wt% hydroxy-ethyl acrylate, 0.5wt% Tween-20 and 69.2wt% water are made into emulsion under stirring, obtain the function nano ZnO that percent grafting is 11.2%
2-nylon fabrics, wherein functionalized modification nano-ZnO
2content is 10.0%(wt).
(nano-ZnO
2be purchased from Hangzhou Wanjing New Material Co., Ltd., other reagent are purchased from Shanghai Reagent Company of traditional Chinese medicines group)
Embodiment 3 functional nano SiO
2the preparation of-dacron
By 6.1g(0.1mol) Nano-meter SiO_2
2particle, 80.6g(1mol) methyl acrylate, 1g NaOH joins in 1000mL dimethyl sulphoxide solution, is warming up to 160 DEG C of stirring reactions 1 hour, obtains functionalized modification Nano-meter SiO_2
2particle; By the 5wt% functionalized modification Nano-meter SiO_2 of the dacron of 10 × 10cm at 200mL
2after particle is mixed in and pads three times in monomer ethylene yl pyridines, in air atmosphere, utilize plasma to irradiate 5 minutes under the power of 300W, obtain the functional nano SiO that percent grafting is 38%
2-COTTON FABRIC, wherein functionalized modification Nano-meter SiO_2
2content is 3.9%(wt).(monomer-grafted rate and the method for testing of nano particle mass percent of modifying are with embodiment 1)
By above-mentioned steps, other reaction conditions are identical, Nano-meter SiO_2 after being modified by 2wt%
2particle, 20wt% vinylpyridine, 1wt% Tween-20 and 77wt% water are made into emulsion under stirring, obtain the function nano SiO that percent grafting is 40.2%
2-dacron, wherein functionalized modification nano-ZnO
2content is 1.3%(wt).
(Nano-meter SiO_2
2be purchased from Hangzhou Wanjing New Material Co., Ltd., other reagent are purchased from Shanghai Reagent Company of traditional Chinese medicines group)
Embodiment 4 functional nano Al
2o
3the preparation of-polyethylene nonwoven cloth
By 10.2g(0.1mol) nanometer Al
2o
3particle, 181g(2mol) acryloyl chloride, 0.05g sodium acetate mixing, in nitrogen atmosphere, at 4 DEG C react 12 hours, obtain functionalized modification nanometer Al
2o
3particle; 5 × 5cm silk broadcloth is immersed in 100mL water, adds 10wt% functionalized modification nanometer Al
2o
3particle, 10wt% vinyl pyrrolidone, 0.2wt% ammonium persulfate, under the condition of nitrogen protection, be warming up to 80 DEG C of reactions and within 2 hours, obtain the functional nano Al that percent grafting is 29%
2o
3-polyethylene nonwoven cloth, wherein Al
2o
3content is 2.4%(wt).(monomer-grafted rate and the method for testing of nano particle mass percent of modifying are with embodiment 1)
By above-mentioned steps, other reaction conditions are identical, carry out grafting to by 0.5 × 0.5cm silk broadcloth, obtain the functional nano Al that percent grafting is 155%
2o
3-polyethylene nonwoven cloth, wherein Al
2o
3content is 21.0%(wt) (nanometer Al
2o
3be purchased from Hangzhou Wanjing New Material Co., Ltd., other reagent are purchased from Shanghai Reagent Company of traditional Chinese medicines group)
The preparation of embodiment 5 functional nano MgO-silk broadcloth
By 10g(0.25mol) nano-MgO particle, 71g(0.5mol) glycidyl methacrylate ester, 10g NaOH joins in 500mL water, is warming up to 70 DEG C of stirring reactions 2 hours, obtains functionalized modification nano-MgO particle; 5 × 5cm real silk silk is padded three times in containing the styrene monomer of 15wt% functionalized modification nano-MgO particle; under the condition of nitrogen protection; with the ultra violet lamp 20min of wavelength 256nm; obtain functional nano MgO-silk broadcloth that percent grafting is 38%, wherein functionalized modification nano-MgO content is 10.1%(wt).(monomer-grafted rate and the method for testing of nano particle mass percent of modifying are with embodiment 1)
(nano-MgO is purchased from Hangzhou Wanjing New Material Co., Ltd., and other reagent are purchased from Shanghai Reagent Company of traditional Chinese medicines group)
Embodiment 6 functional nano ZrO
2the preparation of-cellulose fibre non-weaving cloth
By 24.6g(0.2mol) nanometer ZrO
2particle, 14.4g(0.1mol) hydroxy propyl methacrylate, 0.05g sodium acetate join in 300mL xylene solution, be warming up to 140 DEG C of stirring reactions 1 hour, obtain functionalized modification nanometer ZrO
2particle; 5 × 5cm viscose glue non-weaving cloth is immersed in the 15wt% functionalized modification nanometer ZrO of 100mL
2in the methanol solution of particle, 30wt% hydroxy propyl methacrylate, 0.8wt% neopelex, add 0.1wt% benzophenone as light trigger, with the ultraviolet vertical irradiation 1 hour that dominant wavelength is 254nm, obtain the functional nano ZrO that percent grafting is 31%
2-cellulose fibre non-weaving cloth, wherein functionalized modification nanometer ZrO
2content is 2.3%(wt).(monomer-grafted rate and the method for testing of nano particle mass percent of modifying are with embodiment 1)
(nanometer ZrO
2be purchased from Hangzhou Wanjing New Material Co., Ltd., other reagent are purchased from Shanghai Reagent Company of traditional Chinese medicines group)
Effect example 1 nano-TiO
2-COTTON FABRIC is through family's 250 clean result experiments
To the functionalized modification nano-TiO obtained in embodiment 1
2content is 4.2%(wt) product washing front and back ESEM observe, the effect before washing is shown in Fig. 1 a, and the effect after washing is shown in Fig. 1 b.Can find that before and after washing, the change of cotton pattern is little.
Use TG method (carrying out according to the TG method in embodiment 1) to the TiO that the cotton before and after washing is modified
2mass percent measure, the results are shown in Figure 2, as can be seen from the figure, after accelerating washing 50 circulation (being equivalent to 250 daily washings of family expenses) according to ATCC61-2006,2A standard, the TiO that COTTON FABRIC is modified
2mass percent change very little, illustrates that the modified cotton fabric that obtains of use method of the present invention has good wash resistant effect.
Effect example 2
With oil red and oleic acid mixture (wherein oil red content is for 2.5g/L) for model pollutant, be coated on the unmodified cotton (the unmodified COTTON FABRIC in embodiment 1) after washing 50 circulation and modified cotton, with the ultra violet lamp cotton of 355nm wavelength, distance between adjustment ultraviolet lamp tube and cotton, making to be irradiated to ultraviolet light intensity on cotton is 2.0 ± 0.1mW/cm2, irradiates 0,5, take pictures respectively after 9,24 hours, observe automatically cleaning effect.
Wherein, modified cotton is the functionalized modification nano-TiO that embodiment 1 obtains
2content is that 4.2%(calls nano-TiO in the following text
2-COTTON FABRIC 3), 0.9%(calls nano-TiO in the following text
2-COTTON FABRIC 1) and 1.7%(call nano-TiO in the following text
2-COTTON FABRIC 2) functional nano TiO
2-COTTON FABRIC.
The results are shown in Figure 3.Sample in Fig. 3 is from left to right followed successively by:
Pure cotton fabric;
Nano-TiO
2-COTTON FABRIC 1, functionalized modification nano-TiO
2content is 0.9%;
Nano-TiO
2-COTTON FABRIC 2, functionalized modification nano-TiO
2content is 1.7%;
Nano-TiO
2-COTTON FABRIC 3, functionalized modification nano-TiO
2content is 4.2%.
In Fig. 3, be followed successively by before UV-irradiation is carried out to four samples from top to bottom, UV-irradiation 5 hours, UV-irradiation 9 hours and the UV-irradiation effect photo of 24 hours.
Conclusion: introduce nano-TiO
2cOTTON FABRIC have automatically cleaning effect clearly, and nano-TiO
2content is higher, and self-cleaning performance is better.
Claims (10)
1. a preparation method for Functional nano textile, is characterized in that comprising the following step:
Step (1): in organic solvent, contains the inorganic nano-particle of hydroxyl by surface, and containing can react with the compound of the group of hydroxyl reaction and carbon-carbon double bond, obtain the inorganic nano-particle after modification; Wherein, described can with the group of hydroxyl reaction be carboxyl,
c
1~ C
12alkyl-oxygen carbonyl, C
1~ C
12alkyl-carbonyl oxygen base, ClCO-,
or epoxy radicals; Described compound contains at least one above-mentioned group and contains at least one carbon-carbon double bond; The inorganic nano-particle that hydroxyl is contained on described surface is nano-TiO
2, nano-ZnO, Nano-meter SiO_2
2, nanometer Al
2o
3, nano-MgO and nanometer ZrO
2in any one; The particle diameter of described inorganic nano-particle is between 1 ~ 100nm; Described organic solvent is one or more in methyl alcohol, ethanol, isopropyl alcohol, acetone, oxolane, dioxane, DMF, DMA, METHYLPYRROLIDONE, toluene and dimethylbenzene; In step (1), the temperature of described reaction is 4 ~ 180 DEG C;
Step (2): inorganic nano-particle, monomer A and textiles after the modification obtained by step (1) carry out graft copolymerization; Wherein, described monomer A is one or more in styrene, acrylonitrile, acrylic acid, esters of acrylic acid, methacrylic acid, methyl acrylic ester, acrylamide, NIPA, vinylpyridine and vinyl pyrrolidone; Described textiles is the fabric or non-weaving cloth that are obtained by natural fabric and/or synthetic fiber.
2. preparation method as claimed in claim 1, it is characterized in that: in step (1), described organic solvent is toluene or dimethylbenzene; The proportioning of described inorganic nano-particle and described compound is mol ratio 1:0.5 ~ 1:20.
3. preparation method as claimed in claim 1, it is characterized in that: in step (1), the temperature of described reaction is 60 ~ 140 DEG C.
4. preparation method as claimed in claim 1, it is characterized in that: in step (1), described containing can be one or more in maleic anhydride, acrylic acid, methyl acrylate, acryloyl chloride, glycidyl methacrylate and hydroxy propyl methacrylate with the compound of the group of hydroxyl reaction and carbon-carbon double bond.
5. preparation method as claimed in claim 1, is characterized in that: in step (2), and described natural fabric is one or more in cotton, hair, silk and flax fibre; Described synthetic fiber are one or more in nylon, polypropylene fibre, acrylic fibers, polyvinyl, spandex, polyethylene, polyvinyl chloride, aromatic polyamide, aromatic polyester, polysulfones, polyether-ketone, polyether-ether-ketone, Kynoar, polystyrene and Merlon.
6. preparation method as claimed in claim 5, is characterized in that: described aromatic polyester is terylene.
7. preparation method as claimed in claim 1, it is characterized in that: in step (2), the polymerization methods in described graft copolymerization is bulk polymerization, suspension polymerization, polymerisation in solution or emulsion polymerisation; The initiation method of graft copolymerization is radiation initiation, plasma causes, chemical initiator causes or ultraviolet light causes.
8. preparation method as claimed in claim 1, is characterized in that: in step (2), and the mass ratio of the inorganic nano-particle after the modification that described monomer A and step (1) obtain is 100:1 ~ 0.1:1.
9. preparation method as claimed in claim 1, is characterized in that: in step (2), and the mass ratio of the inorganic nano-particle after the modification that described textiles and step (1) obtain is 1:0.1 ~ 1:10.
10. the Functional nano textile obtained by the preparation method of the Functional nano textile described in any one of claim 1 ~ 9.
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|---|---|---|---|---|
| CN103665279A (en) * | 2013-11-25 | 2014-03-26 | 江苏金太阳布业有限公司 | Preparation method and application of modified nano TiO2 finishing agent |
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