CN105002614A - Preparation method of composite yarn - Google Patents
Preparation method of composite yarn Download PDFInfo
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- CN105002614A CN105002614A CN201510411859.6A CN201510411859A CN105002614A CN 105002614 A CN105002614 A CN 105002614A CN 201510411859 A CN201510411859 A CN 201510411859A CN 105002614 A CN105002614 A CN 105002614A
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Abstract
The present invention provides a preparation method of a long-lasting antibacterial and anti-crease composite yarn. According to the method, since methylbenzene has a swelling effect for polyester fibers, GMA is subjected to interfacial free-radical polymerization on the surface of artificial fibers, and generated PGMA can be anchored on the surface of the artificial fibers, and therefore, epoxy groups can be led onto the surface of the fibers; through a grafting reaction, the epoxy groups react with amidogens on cysteamine, so that sulfydryl can be led onto the surface of the fibers; stable S-Ag bonds are formed between the sulfydryl and silver particles, so that composite nanoparticles can be immobilized on the surface of the artificial fibers; and the outer yarn body of the yarn is coated with titanium dioxide/nano silver composite nanoparticles, and the durability of the antibacterial property of the yarn can be improved through the synergistic effect of titanium dioxide and nano silver particles. The composite yarn produced by the preparation method of the invention has the advantages of excellent antibacterial performance and anti-crease effect as well as favorable fluffiness, flexibility and comfort, and excellent gas permeability and moisture absorption performance, and touches soft.
Description
Technical field
The present invention relates to weaving face fabric processing technique field, particularly relate to a kind of preparation method of complex yarn.
Background technology
When fibre contact human body, suitable humidity and temperature is that bacterium and fungi provide suitable growing environment.Along with people are to the increase of clothing safety concerns degree, the textiles with antibacterial functions becomes the first-selection of people gradually.In addition, the clothing being easy to fold needs to spend a large amount of energy of people to go to arrange, and there has also been new requirement to the wrinkle resistance of fabric.
At present, in order to give fibre antibacterial function, zinc oxide nano-particle is usually as additive, blended and be coated on fibrous inside, moves to fiber surface, play the effect of sterilization by slowly-releasing.But single inorganic nano-particle can not meet the requirement in some field gradually.Nano zine oxide add the mechanical property that may affect organic polymer fiber, its fragility is increased, be easy to fracture; And its price is also higher, add the cost of goods.In addition, if directly by fiber direct impregnation in antibacterial mother liquor, carry out antibacterial treatment, nano particle, because not having associative key effect between fiber, is easy to come off, and does not have permanent antibacterial functions.
In wrinkle resistant, non-ironing face fabric popular on the market applies some special process mostly, such as contaminates in special dip dyeing liquid for shell or applies PU or PVC on the top layer of fabric cloth.The former shortcoming is that fabric durability is lower, and clothing is lower for service life; The shortcoming of the latter is, the performance of fabric cloth in gas permeability and absorption of perspiration is unsatisfactory, and long-time dress can cause discomfort.On fibrous material, elasticity and the ABRASION RESISTANCE of polyurethanes elastomer conventional are at present poor, await further raising.Therefore, the present inventor considers, prepare a kind of antibacterial, wrinkle resistant complex yarn, elasticity is good.
Summary of the invention
The technical problem that the present invention solves is the preparation method providing a kind of complex yarn, and this complex yarn has antibacterial, wrinkle resistant effect, and elasticity is good.
In view of this, the invention provides a kind of preparation method of complex yarn, comprise the following steps: the polyester yarn core that PET/PTT composite fibre is formed is provided; Artificial fibre is immersed in the toluene solution of glycidyl methacrylate, by interface polymerization reaction at the described fixing PGMA in artificial fibre surface, then at artificial fibre surface grafting cysteamine; The artificial fibre of surface grafting cysteamine is flooded 1-5 hour in antibacterial mother liquor, and dry after washing, obtain the outer sliver of antibacterial artificial fibre, described antibacterial mother liquor comprises titanium dioxide granule, nano-Ag particles and aqueous hydrochloric acid solution; By outer for described artificial fibre sliver in the shape of a spiral coiling on polyester yarn core, obtain complex yarn.
Preferably, described PET/PTT composite fibre is prepared as follows: by polyethylene terephthalate and polytrimethylene terephthalate melting at 220 DEG C-270 DEG C respectively, then after composite spinning jete high speed spinning, obtain PET/PTT composite fibre.
Preferably, the weight ratio of described polyethylene terephthalate and polytrimethylene terephthalate is (5-9): (1-5).
Preferably, described interface polymerization reaction carries out as follows: glycidyl methacrylate and initator are dissolved in toluene and form mixed solution, is immersed by artificial fibre in described mixed solution, at 50 ~ 80 DEG C, react 4 ~ 12h.
Preferably, the concentration of described glycidyl methacrylate is 5wt% ~ 15wt%, and described initator is azodiisobutyronitrile, 2,2'-Azobis(2,4-dimethylvaleronitrile) or benzoyl peroxide.
Preferably, to be describedly specially at artificial fibre surface grafting cysteamine: by catalyst and pH value regulator soluble in water, adjust ph is obtain alkaline aqueous solution after 12; Cysteamine is dissolved in described alkaline aqueous solution, fully stirs, then artificial fibre be impregnated in the aqueous solution of cysteamine, react 20 ~ 50min at 20 ~ 30 DEG C after, use washed with de-ionized water.
Preferably, described catalyst is DMAP, and described pH value regulator is potash and/or potassium hydroxide.
Preferably, the concentration of described cysteamine is 4 ~ 15wt%.
Preferably, described antibacterial mother liquor is prepared as follows: be scattered in by titanium dioxide granule in the HCl aqueous solution, regulates pH to be 4, adds nano silver particles, stirred at ambient temperature 15min, by self assembly, Nano Silver is fixed on titanium dioxide granule surface.
Preferably, the concentration of described titanium dioxide is 2wt% ~ 6wt%, the concentration 1wt% ~ 3wt% of Nano Silver.
The invention provides a kind of preparation method of complex yarn, to the method for artificial fibre modifying surface, make the nano particle with antibacterial effect be fixed on fiber surface by associative key effect.Compared with prior art, the present invention adopts coating and the PET/PTT composite fibre of composite nanoparticle, and the yarn core in the complex yarn obtained has good elasticity and intensity, makes end article have non-ironing function.Wherein, toluene has swelling action to polyester fiber, and GMA carries out interface radical polymerization on artificial fibre surface, and the PGMA of generation can be anchored on artificial fibre surface, thus introduces epoxide group at fiber surface; By graft reaction, the amino on epoxide group and cysteamine reacts, thus introduces sulfydryl at fiber surface; Sulfydryl can and silver particles between form more stable S-Ag key, thus composite nanoparticle is fixed on the surface of artificial fibre; The outer yarn body of yarn bar is coated with the composite nanoparticle of titanium dioxide/Nano Silver, utilizes the synergy of titanium dioxide and nano-Ag particles, improves Durability of antimicrobial effect.Therefore, complex yarn prepared by the present invention has excellent antibacterial, wrinkle resistant effect, has excellent bulkiness, elasticity and comfortableness, and soft, ventilative moisture absorption etc. are functional.
Accompanying drawing explanation
Fig. 1 is the structural representation of complex yarn prepared by the present invention;
Fig. 2 is the compound silk device for spinning structural representation that the present invention adopts;
Fig. 3 is the Escherichia coli survival volume schematic diagram after the present invention before modified on PET/PTT fiber;
Fig. 4 is the pseudomonas aeruginosa survival volume schematic diagram after the present invention before modified on PET/PTT fiber;
Fig. 5 is the Staphylococcus aureus survival volume schematic diagram after the present invention before modified on PET/PTT fiber.
Detailed description of the invention
In order to understand the present invention further, below in conjunction with embodiment, the preferred embodiment of the invention is described, but should be appreciated that these describe just for further illustrating the features and advantages of the present invention, instead of limiting to the claimed invention.
The embodiment of the invention discloses a kind of preparation method of complex yarn, comprise the following steps: the polyester yarn core that PET/PTT composite fibre is formed is provided; Artificial fibre is immersed in the toluene solution of glycidyl methacrylate (GMA), by interface polymerization reaction at the described fixing PGMA in artificial fibre surface, then at artificial fibre surface grafting cysteamine; The artificial fibre of surface grafting cysteamine is flooded 1-5 hour in antibacterial mother liquor, and dry after washing, obtain the outer sliver of antibacterial artificial fibre, described antibacterial mother liquor comprises titanium dioxide granule, nano-Ag particles and aqueous hydrochloric acid solution; By outer for described artificial fibre sliver in the shape of a spiral coiling on polyester yarn core, obtain complex yarn.
Preferably, described PET/PTT composite fibre is prepared as follows: by polyethylene terephthalate (PET) and polytrimethylene terephthalate (PTT) melting at 220 DEG C-270 DEG C respectively, obtain PET/PTT composite fibre after composite spinning jete high speed spinning.The weight ratio of described polyethylene terephthalate and polytrimethylene terephthalate is preferably (5-9): (1-5); Melt temperature is preferably 230-260 DEG C, and the measuring pump rotating speed of described high speed spinning is preferably 30rpm ~ 70rpm, is more preferably 40rpm ~ 60rpm.
Described polyester yarn core is prepared as follows: just twisted with the fingers by two PET/PTT composite fibres, forms polyester yarn core.
Preferably, described interface polymerization reaction carries out as follows: glycidyl methacrylate and initator are dissolved in toluene and form mixed solution, is immersed by artificial fibre in described mixed solution, at 50 ~ 80 DEG C, react 4 ~ 12h.The concentration of described glycidyl methacrylate is preferably 5wt% ~ 15wt%, is more preferably 8wt% ~ 12wt%; Described initator is preferably azodiisobutyronitrile, 2,2'-Azobis(2,4-dimethylvaleronitrile) or benzoyl peroxide, is more preferably azodiisobutyronitrile or 2,2'-Azobis(2,4-dimethylvaleronitrile); Described reaction temperature is preferably 50 ~ 75 DEG C, is more optimized for 55 ~ 70 DEG C; The described reaction time is preferably 5 ~ 11h, is more preferably 6 ~ 10h.
Preferably, to be describedly specially at artificial fibre surface grafting cysteamine: by catalyst and pH value regulator soluble in water, adjust ph is obtain alkaline aqueous solution after 12; Cysteamine is dissolved in described alkaline aqueous solution, fully stirs, then artificial fibre be impregnated in the aqueous solution of cysteamine, surperficial with washed with de-ionized water artificial fibre react 20 ~ 50min at 20 ~ 30 DEG C after.Described catalyst is preferably DMAP; Described pH value regulator is preferably potash and/or potassium hydroxide; The concentration of described cysteamine is preferred 4wt% ~ 15wt%, is more preferably 6wt% ~ 14wt%; Reaction temperature is preferably 22 ~ 30 DEG C, is more preferably 25 ~ 30 DEG C; Reaction time is preferably 25 ~ 50min, is more preferably 30 ~ 45min.
Preferably, described antibacterial mother liquor is prepared as follows: be scattered in by titanium dioxide granule in the HCl aqueous solution, regulates pH to be 4, adds nano silver particles, stirred at ambient temperature 15min, by self assembly, Nano Silver is fixed on titanium dioxide granule surface.Described titanium dioxide concentration is preferably 2wt% ~ 6wt%, is more preferably 2.5wt% ~ 5wt%; Described nano-Ag particles concentration is preferably 1wt% ~ 3wt%, is more preferably 1.5wt% ~ 2.5wt%; Described concentration of hydrochloric acid is preferably 0.05 ~ 0.2mM, is more preferably 0.08 ~ 0.15mM; The particle diameter of described titanium dioxide granule is preferably 40 ~ 100nm, is more preferably 60 ~ 90nm; The particle diameter of described nano-Ag particles is preferably 10 ~ 40nm, is more preferably 20 ~ 30nm.The dipping temperature that artificial fibre floods in antibacterial mother liquor is preferably 30 DEG C ~ 60 DEG C, and dip time is preferably 2 ~ 4 hours.
The present invention is by flooding artificial fibre in antibacterial mother liquor, and being formed with TiO 2 particles is the titanium dioxide/Nano Silver compound particle of core, Surface coating one deck nano silver particles, that is, arrange described titanium dioxide/Nano Silver compound particle in described artificial fibre.
Preparing in complex yarn process, washing time is preferably 30min ~ 60min, is more preferably 40min ~ 50min; Drying steps is specially: de-dry through centrifugal dehydrator, then dries in the baking oven of 60 DEG C ~ 70 DEG C.
Toluene has swelling action to polyester fiber, and GMA carries out interface radical polymerization on artificial fibre surface, and the PGMA of generation can be anchored on artificial fibre surface, thus introduces epoxide group at fiber surface; By a step graft reaction, the amino on epoxide group and cysteamine reacts, thus introduces sulfydryl at fiber surface; Sulfydryl can and silver particles between form more stable S-Ag key, thus composite nanoparticle is fixed on the surface of artificial fibre; The outer yarn body of yarn bar is coated with the composite nanoparticle of titanium dioxide/Nano Silver, utilizes the synergy of titanium dioxide and nano-Ag particles, improves Durability of antimicrobial effect.
The nano-complex particle that the present invention adopts, relative to single inorganic nano-particle, has better antibacterial effect.Titanium dioxide prepared by the present invention/Nano Silver compound particle take nano titanium oxide as core, and Surface coating Nano Silver, has good antibacterial effect.Owing to there is good compatibility between nano titanium oxide and multiple organic polymer, can not have an impact to the mechanical property of composite hybridization material.Under ultraviolet irradiation, the water of titanium dioxide surface absorption is oxidized to the hydroxyl radical free radical with strong oxidizing property; The oxygen being adsorbed on titanium dioxide surface then can react generation superoxide ion, and superoxide ion can react with water further and generate perhydroxyl radical, and perhydroxyl radical can merge generation hydrogen peroxide again mutually.Activity hydroxy, superoxide ion, perhydroxyl radical and hydrogen peroxide can play the organic effect of oxidation Decomposition, directly or indirectly play the effect of sterilization.And the interpolation of the noble metals such as silver can make the absorption light wave of titanium dioxide expand visible ray to from ultraviolet, greatly improve the oxidation disinfection effect of titanium dioxide.In addition, by nano-Ag particles load at titanium dioxide surface, the specific area of silver can be made to maximize, thus significantly increase the catalytic activity of silver, reduce the consumption of silver, reduce costs.Therefore, the present invention, by the synergy of titanium dioxide and Nano Silver, improves the antibacterial effect of fibre.
The wrinkle resistant antibacterial composite yarn lines utilizing said method to prepare, this composite yarn lines body comprises antibacterial rayon fiber and wrinkle resistant some elastic polyester fibre fibers, the bicomponent fiber that described elastic polyester fibre is made up of by a certain percentage polyethylene terephthalate (PET) and polytrimethylene terephthalate (PTT), described elastic polyester fibre is just twisting with the fingers formation yarn core in the shape of a spiral, and described rayon fiber is wound on elastic polyester fibre yarn core in the shape of a spiral.
As shown in Figure 1, structural representation for wrinkle resistant antibacterial composite yarn lines prepared by the present invention: these composite yarn lines comprise antibacterial outer sliver 1 and wrinkle resistant yarn core 2, antibacterial outer sliver 1 is coated on the outside of wrinkle resistant yarn core 2, artificial fibre selected by the base material of described antibacterial outer sliver, described artificial fibre is by obtaining antibacterial outer sliver, described wrinkle resistant yarn core 2 material selection double component polyester fiber after the antibacterial mother liquor of dipping.
The present invention is by adopting the coating of composite nanoparticle and constructing the processing method of bicomponent fibers, and the yarn core in obtained yarn bar has good elasticity and intensity, makes end article have non-ironing function; The outer yarn body of yarn bar is coated with the composite nanoparticle of titanium dioxide/Nano Silver, obtains antibacterial outer sliver, has excellent antibiotic effect.
The present invention has following advantage: the synergy of titanium dioxide and nano-Ag particles, substantially increases the Durability of antimicrobial effect of fabric, reduces the consumption of silver, reduces costs; PET/PTT composite fibre combines PET, PTT performance characteristics separately, and synergy, compensate for the defect in one-component performance.Fabric made by this composite fibre, except having excellent bulkiness, elasticity and comfortableness, also has the superperformances such as soft, ventilative moisture absorption concurrently.
In order to understand the present invention further, be described in detail to technical scheme provided by the invention below in conjunction with embodiment, protection scope of the present invention is not limited by the following examples.
The raw material that the embodiment of the present invention adopts and chemical reagent are commercial.
Embodiment 1
As shown in Figure 2, pre-dry PET and PTT is placed in two melting device 1a and 1b heating and melting respectively according to the ratio of mass fraction 7: 3, temperature is set as 230 DEG C, after respective melting, composite spinning jete 3 is fed respectively through measuring pump 2a and 2b, extrude spun compound silk 4 through stable zone of silence 5, the condensation air ejected with cooling window 6 contacts, be wound to through cooled strand 4 on the bobbin 9 driven by Wound-up roller, form undrawn yarn, adjust tension force with a pair deflector roll roller 7 and 8, obtain double component polyester fiber, i.e. PET/PTT composite fibre.
Described measuring pump extruded velocity is 45rpm, and described compound silk external diameter is about 0.12mm.
The PET/PTT composite fibre of 2 above-mentioned preparations is just being twisted with the fingers and is forming polyester yarn core.
The GMA monomer of 8wt% is dissolved in toluene together with initator azodiisobutyronitrile, artificial PET/PTT fiber impregnation is in this mixed solution, logical nitrogen, be warming up to 75 DEG C, successive reaction 7h, reaction terminating is made, the artificial PET/PTT composite fibre of deionized water rinsing by reaction system being contacted with air.
Trace catalyst DMAP and potash are dissolved in the water, by adding potassium hydroxide adjust ph to 12, add cysteamine, be configured to the cysteamine alkaline solution that concentration is 8wt%, PET/PTT composite fibre surface being introduced epoxide group is immersed, react 35min at 25 DEG C, reaction terminates rear washed with de-ionized water PET/PTT composite fibre.
In wrinkle resistant antimicrobial composite yarns, antibacterial mother liquor comprises: titanium dioxide 4wt%, nano-Ag particles 1wt%, and all the other are solvent; Titanium dioxide granule is of a size of 60nm, and nano-Ag particles is of a size of 20nm, the HCl aqueous solution of solvent 0.1mM.
Be scattered in by titanium dioxide granule in the HCl aqueous solution, adjust ph is 4, under agitation makes it fully disperse, then under agitation adds nano silver particles.Then add in clean reactor by above raw material, temperature of reaction kettle is set to 60 DEG C, uniform stirring 4h, makes nano-Ag particles fully be attached to titanium dioxide granule surface.
Control at 50 DEG C by the dipping temperature of artificial fibre in antibacterial mother liquor, dip time is 3 hours.Artificial fibre impregnation process crossed rinses 60min in the clear water of flowing, de-dry through centrifugal dehydrator, finally dries in the baking oven of 60 DEG C, obtains the outer sliver of antibacterial artificial fibre thus.
Embodiment 2
As shown in Figure 2, pre-dry PET and PTT is placed in two melting device 1a and 1b heating and melting respectively according to the ratio of mass fraction 7: 3, temperature is set as 245 DEG C, after respective melting, composite spinning jete 3 is fed respectively through measuring pump 2a and 2b, extrude spun compound silk 4 through stable zone of silence 5, the condensation air ejected with cooling window 6 contacts, be wound to through cooled strand 4 on the bobbin 9 driven by Wound-up roller, form undrawn yarn, adjust tension force with a pair deflector roll roller 7 and 8, obtain double component polyester fiber, i.e. PET/PTT composite fibre.
Described measuring pump extruded velocity is 65rpm, and described compound silk external diameter is about 0.12mm.
The PET/PTT composite fibre of 2 above-mentioned preparations is just being twisted with the fingers and is forming polyester yarn core.
The GMA monomer of 11wt% is dissolved in toluene together with initator 2,2'-Azobis(2,4-dimethylvaleronitrile), artificial PET/PTT fiber impregnation is in this mixed solution, logical nitrogen, be warming up to 68 DEG C, successive reaction 6h, reaction terminating is made, the artificial PET/PTT composite fibre of deionized water rinsing by reaction system being contacted with air.
Trace catalyst DMAP and potash are dissolved in the water, by adding potassium hydroxide adjust ph to 12, add cysteamine, be configured to the cysteamine alkaline solution that concentration is 13wt%, PET/PTT composite fibre surface being introduced epoxide group is immersed, react 45min at 28 DEG C, reaction terminates rear washed with de-ionized water PET/PTT composite fibre.
In wrinkle resistant antimicrobial composite yarns, antibacterial mother liquor comprises: titanium dioxide 3wt%, nano-Ag particles 1.5wt%, and all the other are solvent; Titanium dioxide granule is of a size of 70nm, and nano-Ag particles is of a size of 40nm, the HCl aqueous solution of solvent 0.12mM.
Be scattered in by titanium dioxide granule in the HCl aqueous solution, adjust ph is 4, under agitation makes it fully disperse, then under agitation adds nano silver particles.Then add in clean reactor by above raw material, temperature of reaction kettle is set to 60 DEG C, uniform stirring 4h, makes nano-Ag particles fully be attached to titanium dioxide granule surface.
Control at 55 DEG C by the dipping temperature of artificial fibre in antibacterial mother liquor, dip time is 3.5 hours.Impregnation process artificial fibre is rinsed 60min in the clear water of flowing, de-dry through centrifugal dehydrator, finally dry in the baking oven of 60 DEG C, obtain the outer sliver of antibacterial artificial fibre thus.
By described artificial fibre in the shape of a spiral coiling on polyester yarn core, obtain complex yarn.
Three kinds of bacteriums (Escherichia coli, pseudomonas aeruginosa and the Staphylococcus aureus) survival rate of carrying out according to embodiment 1 on the PET/PTT fiber is before modified detected, as shown in Fig. 3, Fig. 4 and Fig. 5.As can be seen from the figure, wrinkle resistant antimicrobial yarn (the PET/PTT-Ag@SiO for preparing of the embodiment of the present invention
2) Survival probability of bacteria have reduction, three kinds of bacteriums only have the survival rate of 0.94%, 0.2%, 2.8% respectively.
The explanation of above embodiment just understands method of the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a preparation method for complex yarn, is characterized in that, comprises the following steps:
The polyester yarn core that PET/PTT composite fibre is formed is provided;
Artificial fibre is immersed in the toluene solution of glycidyl methacrylate, by interface polymerization reaction at the described fixing PGMA in artificial fibre surface, then at artificial fibre surface grafting cysteamine;
The artificial fibre of surface grafting cysteamine is flooded 1-5 hour in antibacterial mother liquor, and dry after washing, obtain the outer sliver of antibacterial artificial fibre, described antibacterial mother liquor comprises titanium dioxide granule, nano-Ag particles and aqueous hydrochloric acid solution;
By outer for described artificial fibre sliver in the shape of a spiral coiling on polyester yarn core, obtain complex yarn.
2. preparation method according to claim 1, is characterized in that, described PET/PTT composite fibre is prepared as follows:
By polyethylene terephthalate and polytrimethylene terephthalate melting at 220 DEG C-270 DEG C respectively, then after composite spinning jete high speed spinning, obtain PET/PTT composite fibre.
3. preparation method according to claim 2, is characterized in that, the weight ratio of described polyethylene terephthalate and polytrimethylene terephthalate is (5-9): (1-5).
4. preparation method according to claim 1, is characterized in that, described interface polymerization reaction carries out as follows:
Glycidyl methacrylate and initator are dissolved in toluene and form mixed solution, artificial fibre is immersed in described mixed solution, at 50 ~ 80 DEG C, react 4 ~ 12h.
5. preparation method according to claim 4, is characterized in that, the concentration of described glycidyl methacrylate is 5wt% ~ 15wt%, and described initator is azodiisobutyronitrile, 2,2'-Azobis(2,4-dimethylvaleronitrile) or benzoyl peroxide.
6. preparation method according to claim 1, is characterized in that, is describedly specially in artificial fibre surface grafting cysteamine step:
By catalyst and pH value regulator soluble in water, adjust ph is obtain alkaline aqueous solution after 12;
Cysteamine is dissolved in described alkaline aqueous solution, fully stirs, then artificial fibre be impregnated in the aqueous solution of cysteamine, react 20 ~ 50min at 20 ~ 30 DEG C after, use washed with de-ionized water.
7. preparation method according to claim 6, is characterized in that, described catalyst is DMAP, and described pH value regulator is potash and/or potassium hydroxide.
8. preparation method according to claim 6, is characterized in that, the concentration of described cysteamine is 4 ~ 15wt%.
9. the preparation method according to claim 1 ~ 8 any one, is characterized in that, described antibacterial mother liquor is prepared as follows:
Titanium dioxide granule is scattered in the HCl aqueous solution, regulates pH to be 4, add nano silver particles, stirred at ambient temperature 15min, by self assembly, Nano Silver is fixed on titanium dioxide granule surface.
10. the preparation method according to claim 1 ~ 8 any one, is characterized in that, the concentration of described titanium dioxide is 2wt% ~ 6wt%, the concentration 1wt% ~ 3wt% of Nano Silver.
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| CN111155237A (en) * | 2020-01-02 | 2020-05-15 | 东莞市亿茂滤材有限公司 | Composite spinning melt-blown non-woven fabric with antibacterial function and preparation method and application thereof |
| CN111155237B (en) * | 2020-01-02 | 2021-07-13 | 东莞市亿茂滤材有限公司 | Composite spinning melt-blown non-woven fabric with antibacterial function and preparation method and application thereof |
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