CN105002614B - A kind of preparation method of complex yarn - Google Patents
A kind of preparation method of complex yarn Download PDFInfo
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- CN105002614B CN105002614B CN201510411859.6A CN201510411859A CN105002614B CN 105002614 B CN105002614 B CN 105002614B CN 201510411859 A CN201510411859 A CN 201510411859A CN 105002614 B CN105002614 B CN 105002614B
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Abstract
The invention provides a kind of preparation method of the complex yarn with long duration antibacterial crease-resistant function, wherein, toluene has swelling action to polyester fiber, GMA carries out interface radical polymerization on staple fibre surface, the PGMA of generation can be anchored on staple fibre surface, so as to introduce epoxide group in fiber surface;By graft reaction, epoxide group is reacted with the amino on cysteamine, and sulfydryl is introduced in fiber surface;Relatively stable S Ag keys are formed between sulfydryl and silver particles, so that composite nanoparticle to be fixed on to the surface of staple fibre;The outer yarn body of yarn bar is coated with the composite nanoparticle of titanium dioxide/Nano Silver, using the synergy of titanium dioxide and nano-Ag particles, improves Durability of antimicrobial effect.Therefore, the complex yarn that prepared by the present invention has excellent antibacterial, wrinkle resistant effect, and with excellent bulkiness, elasticity and comfortableness, and soft, moisture absorption etc. of breathing freely is functional.
Description
Technical field
The present invention relates to weaving face fabric processing technique field, more particularly to a kind of preparation method of complex yarn.
Background technology
When fibre contacts human body, appropriate humidity and temperature is that bacterium and fungi provide suitable growth ring
Border.Increase with people to clothing safety concerns degree, the textile with antibacterial functions is increasingly becoming the first choice of people.This
Outside, it is easy to which the clothing of fold needs to spend the substantial amounts of energy of people to go to arrange, and the wrinkle resistance to fabric there has also been new requirement.
At present, in order to assign the function of fibre antibacterial, zinc oxide nano-particle blending and is wrapped often as additive
Fibrous inside is overlayed on, fiber surface is moved to by sustained release, plays a part of sterilization.But single inorganic nano-particle is
The requirement in some fields can not gradually be met.The addition of nano zine oxide may influence the mechanical property of organic polymer fiber
Can, make the increase of its fragility, it is easy to be broken;And its price is also higher, the cost of product is added.If in addition, directly by fibre
Direct impregnation is tieed up in antibacterial mother liquor, antimicrobial treatment is carried out, nano-particle is because being not bound with key effect between fiber, it is easy to de-
Fall, without permanent antibacterial functions.
At wrinkle resistant aspect, popular non-ironing face fabric applies some special process mostly on the market, such as in special leaching
Contaminated in dye liquor or coat PU or PVC on the top layer of fabric cloth.The former shortcoming is fabric durability than relatively low, and clothing is used
Life-span is relatively low;The shortcoming of the latter is that performance of the fabric cloth in terms of gas permeability and absorption of perspiration is unsatisfactory, and dress for a long time can make
Into discomfort.On fibrous material, the elasticity and wearability of conventional polyurethanes elastomer are poor at present, await further
Improve.Therefore, it is considered as desirable by the inventor to prepare a kind of antibacterial, wrinkle resistant complex yarn, elasticity is good.
The content of the invention
Present invention solves the technical problem that being to provide a kind of preparation method of complex yarn, the complex yarn has anti-
Bacterium, wrinkle resistant effect, elasticity are good.
In view of this, the invention provides a kind of preparation method of complex yarn, comprise the following steps:PET/PTT is provided
The polyester yarn core of composite fibre formation;In the toluene solution that staple fibre is immersed to GMA, pass through boundary
Face polymerisation fixes PGMA on the staple fibre surface, then in staple fibre surface grafting cysteamine;By surface grafting
The staple fibre of cysteamine impregnates 1-5 hours in antibacterial mother liquor, is dried after washing, obtains the outer sliver of staple fibre of antibacterial,
The antibacterial mother liquor includes titanium dioxide granule, nano-Ag particles and aqueous hydrochloric acid solution;It is in spiral shell by sliver outside the staple fibre
Shape coiling is revolved on polyester yarn core, obtains complex yarn.
It is preferred that, the PET/PTT composite fibres are prepared as follows:By polyethylene terephthalate and poly-
Propylene glycol ester terephthalate melts at 220 DEG C -270 DEG C respectively, then obtains PET/ after composite spinning jete high speed spinning
PTT composite fibres.
It is preferred that, the weight ratio of the polyethylene terephthalate and PTT is (5-9):
(1-5)。
It is preferred that, the interface polymerization reaction is carried out as follows:By GMA and initiation
Agent, which is dissolved in toluene, forms mixed solution, and staple fibre is immersed in the mixed solution, at 50~80 DEG C react 4~
12h。
It is preferred that, the concentration of the GMA is 5wt%~15wt%, and the initiator is azo
Bis-isobutyronitrile, ABVN or benzoyl peroxide.
It is preferred that, it is described to be specially in staple fibre surface grafting cysteamine:Catalyst and pH value regulator are dissolved in water
In, regulation pH value be 12 after obtain alkaline aqueous solution;Cysteamine is dissolved in the alkaline aqueous solution, is sufficiently stirred for, then
Staple fibre is impregnated in the aqueous solution of cysteamine, cleaned after reacting 20~50min at 20~30 DEG C with deionized water.
It is preferred that, the catalyst is DMAP, and the pH value regulator is potassium carbonate and/or hydroxide
Potassium.
It is preferred that, the concentration of the cysteamine is 4~15wt%.
It is preferred that, the antibacterial mother liquor is prepared as follows:Titanium dioxide granule is scattered in HCl/water solution,
It is 4 to adjust pH, adds nano silver particles, 15min is stirred at room temperature, Nano Silver is fixed on into titanium dioxide granule by self assembly
Surface.
It is preferred that, the concentration of the titanium dioxide is 2wt%~6wt%, concentration 1wt%~3wt% of Nano Silver.
The invention provides a kind of preparation method of complex yarn, the method being modified to staple fibre surface so that
Nano-particle with antibacterial effect is fixed on fiber surface by associative key effect.Compared with prior art, the present invention is used
Yarn core in the coating of composite nanoparticle and PET/PTT composite fibres, obtained complex yarn has preferably elasticity and strong
Degree so that end article has non-ironing function.Wherein, toluene has swelling action to polyester fiber, and GMA is on staple fibre surface
Interface radical polymerization is carried out, the PGMA of generation can be anchored on staple fibre surface, so as to introduce epoxide group in fiber surface;
By graft reaction, epoxide group reacts with the amino on cysteamine, so as to introduce sulfydryl in fiber surface;Sulfydryl can be with silver granuel
Relatively stable S-Ag keys are formed between son, so that composite nanoparticle to be fixed on to the surface of staple fibre;The outer yarn body of yarn bar
The composite nanoparticle of titanium dioxide/Nano Silver is coated with, using the synergy of titanium dioxide and nano-Ag particles, is improved
Durability of antimicrobial effect.Therefore, the complex yarn for preparing of the present invention has excellent antibacterial, wrinkle resistant effect, with excellent bulkiness,
Elasticity and comfortableness, and soft, moisture absorption etc. of breathing freely is functional.
Brief description of the drawings
The structural representation for the complex yarn that Fig. 1 is prepared for the present invention;
The composite filament device for spinning structural representation that Fig. 2 uses for the present invention;
Fig. 3 is the Escherichia coli survival volume schematic diagram in the present invention before modified rear PET/PTT fibers;
Fig. 4 is the pseudomonas aeruginosa survival volume schematic diagram in the present invention before modified rear PET/PTT fibers;
Fig. 5 is the Staphylococcus aureus survival volume schematic diagram in the present invention before modified rear PET/PTT fibers.
Embodiment
For a further understanding of the present invention, the preferred embodiment of the invention is described with reference to embodiment, still
It should be appreciated that these descriptions are simply to further illustrate the features and advantages of the present invention, rather than to the claims in the present invention
Limitation.
The embodiment of the invention discloses a kind of preparation method of complex yarn, comprise the following steps:PET/PTT is provided to be combined
Fibroplastic polyester yarn core;In the toluene solution that staple fibre is immersed to GMA (GMA), pass through boundary
Face polymerisation fixes PGMA on the staple fibre surface, then in staple fibre surface grafting cysteamine;By surface grafting
The staple fibre of cysteamine impregnates 1-5 hours in antibacterial mother liquor, is dried after washing, obtains the outer sliver of staple fibre of antibacterial,
The antibacterial mother liquor includes titanium dioxide granule, nano-Ag particles and aqueous hydrochloric acid solution;It is in spiral shell by sliver outside the staple fibre
Shape coiling is revolved on polyester yarn core, obtains complex yarn.
Preferably, the PET/PTT composite fibres are prepared as follows:By polyethylene terephthalate
Ester (PET) and PTT (PTT) are melted at 220 DEG C -270 DEG C respectively, through composite spinning jete high-speed spinning
PET/PTT composite fibres are obtained after silk.The weight of the polyethylene terephthalate and PTT
Than being preferably (5-9): (1-5);Melting temperature is preferably 230-260 DEG C, and the metering revolution speed of the high speed spinning is preferably
30rpm~70rpm, more preferably 40rpm~60rpm.
The polyester yarn core is prepared as follows:Two PET/PTT composite fibres are just being twisted with the fingers, polyester yarn core is formed.
Preferably, the interface polymerization reaction is carried out as follows:By GMA
It is dissolved in initiator in toluene and forms mixed solution, staple fibre is immersed in the mixed solution, it is anti-at 50~80 DEG C
Answer 4~12h.The concentration of the GMA is preferably 5wt%~15wt%, and more preferably 8wt%~
12wt%;The initiator is preferably azodiisobutyronitrile, ABVN or benzoyl peroxide, more preferably azo two
Isobutyronitrile or ABVN;The reaction temperature is preferably 50~75 DEG C, is more optimized for 55~70 DEG C;The reaction time
Preferably 5~11h, more preferably 6~10h.
Preferably, it is described to be specially in staple fibre surface grafting cysteamine:By catalyst and pH value regulator
It is soluble in water, regulation pH value be 12 after obtain alkaline aqueous solution;Cysteamine is dissolved in the alkaline aqueous solution, fully stirred
Mix, then staple fibre is impregnated in the aqueous solution of cysteamine, deionized water is used after reacting 20~50min at 20~30 DEG C
Clean staple fibre surface.The catalyst is preferably DMAP;The pH value regulator be preferably potassium carbonate and/
Or potassium hydroxide;The concentration of the cysteamine is preferred 4wt%~15wt%, more preferably 6wt%~14wt%;Reaction temperature
Preferably 22~30 DEG C, more preferably 25~30 DEG C;Reaction time is preferably 25~50min, more preferably 30~45min.
Preferably, the antibacterial mother liquor is prepared as follows:Titanium dioxide granule is scattered in HCl/water molten
In liquid, regulation pH is 4, adds nano silver particles, 15min is stirred at room temperature, Nano Silver is fixed on into titanium dioxide by self assembly
Titanium particle surface.The titanium dioxide concentration is preferably 2wt%~6wt%, more preferably 2.5wt%~5wt%;The nanometer
Argent grain concentration is preferably 1wt%~3wt%, more preferably 1.5wt%~2.5wt%;The concentration of hydrochloric acid is preferably 0.05
~0.2mM, more preferably 0.08~0.15mM;The particle diameter of the titanium dioxide granule is preferably 40~100nm, and more preferably 60
~90nm;The particle diameter of the nano-Ag particles is preferably 10~40nm, more preferably 20~30nm.Staple fibre is in antibacterial mother liquor
The dipping temperature of middle dipping is preferably 30 DEG C~60 DEG C, and dip time is preferably 2~4 hours.
The present invention is by the way that staple fibre is impregnated in antibacterial mother liquor, and formation is by core of TiO 2 particles, Surface coating
The titanium dioxide of one layer of nano silver particles/Nano Silver compound particle, i.e. the interior setting titanium dioxide of the staple fibre/receive
The silver-colored compound particle of rice.
During complex yarn is prepared, washing time is preferably 30min~60min, more preferably 40min~50min;
Drying steps are specially:It is de- dry through centrifugal dehydrator, then dried in 60 DEG C~70 DEG C of baking oven.
Toluene has swelling action to polyester fiber, and GMA carries out interface radical polymerization on staple fibre surface, generation
PGMA can be anchored on staple fibre surface, so as to introduce epoxide group in fiber surface;Pass through a step graft reaction, epoxide group
Reacted with the amino on cysteamine, so as to introduce sulfydryl in fiber surface;Sulfydryl can form relatively stable S-Ag between silver particles
Key, so that composite nanoparticle to be fixed on to the surface of staple fibre;The outer yarn body of yarn bar is coated with titanium dioxide/Nano Silver
Composite nanoparticle, using the synergy of titanium dioxide and nano-Ag particles, improve Durability of antimicrobial effect.
The nano-complex particle that the present invention is used is relative to single inorganic nano-particle, with more preferable antibacterial effect.
Titanium dioxide prepared by the present invention/Nano Silver compound particle is using nano titanium oxide as core, Surface coating Nano Silver, with good
Antibacterial effect., will not be to composite hybridization due to having preferable compatibility between nano titanium oxide and a variety of organic polymers
The mechanical property of material produces influence.Under ultraviolet irradiation, the water of titanium dioxide surface absorption is oxidized to strong oxygen
The hydroxyl radical free radical for the property changed;The oxygen adsorbed in titanium dioxide surface can then react generation superoxide ion, and superoxide ion can enter
One step can mutually merge generation hydrogen peroxide again with water reaction generation perhydroxyl radical, perhydroxyl radical.Activity hydroxy, superoxide ion, perhydroxyl radical
The effect of oxidation Decomposition organic matter is can act as with hydrogen peroxide, directly or indirectly plays a part of sterilization.And the noble metal such as silver
Addition the absorption light wave of titanium dioxide can be made to be expanded to visible ray from ultraviolet, greatly improve titanium dioxide oxidation disinfection effect
Really.In addition, nano-Ag particles are supported on into titanium dioxide surface, it can maximize the specific surface area of silver, so as to dramatically increase silver
Catalytic activity, reduce silver consumption, reduce cost.Therefore, the present invention is carried by the synergy of titanium dioxide and Nano Silver
The antibacterial effect of high microsteping product.
The wrinkle resistant antibacterial composite yarn lines prepared using the above method, the composite yarn lines body includes the artificial silk of antibacterial
Fiber and wrinkle resistant some elastic polyester fibre fibers, described elastic polyester fibre is by polyethylene terephthalate
(PET) and the bicomponent fibre that constitutes by a certain percentage of PTT (PTT), the elastic polyester fibre is in
Helical form is just twisted with the fingers and forms yarn core, and the rayon fiber is in the shape of a spiral on elastic polyester fibre yarn core.
As shown in figure 1, the structural representation of the composite yarn lines of the wrinkle resistant antibacterial prepared for the present invention:The composite yarn lines
Including sliver outside antibacterial 1 and wrinkle resistant yarn core 2, the outer sliver 1 of antibacterial is coated on the outside of wrinkle resistant yarn core 2, the outer sliver of described antibacterial
Base material select staple fibre, described staple fibre obtains sliver outside antibacterial by impregnating after antibacterial mother liquor, described is wrinkle resistant
The material selection double component polyester fiber of yarn core 2.
The present invention is by using the coating of composite nanoparticle and the processing method of construction bicomponent fibers, obtained yarn
Yarn core in bar has preferably elasticity and intensity so that end article has non-ironing function;The outer yarn body coating of yarn bar
There is the composite nanoparticle of titanium dioxide/Nano Silver, the outer sliver of antibacterial is obtained, with excellent antibiotic effect.
Present invention tool has the advantage that:The synergy of titanium dioxide and nano-Ag particles, substantially increases the anti-of fabric
Bacterium persistence, reduces the consumption of silver, reduces cost;PET/PTT composite fibres combine the respective performance characteristics of PET, PTT, association
Same-action, compensate for the defect in one-component performance.Fabric made by this composite fibre remove with excellent bulkiness,
Outside elasticity and comfortableness, the superperformances such as soft, ventilative moisture absorption are also had concurrently.
For a further understanding of the present invention, the technical scheme that the present invention is provided is carried out specifically with reference to embodiment
Bright, protection scope of the present invention is not limited by the following examples.
The raw material and chemical reagent that the embodiment of the present invention is used are purchased in market.
Embodiment 1
As shown in Fig. 2 pre-dry PET and PTT is respectively placed in into two melting devices according to the ratio of mass fraction 7: 3
Melting is heated in 1a and 1b, temperature is set as 230 DEG C, each after melting, feed compound spinneret through measuring pump 2a and 2b respectively
First 3, extrude spun composite filament 4 and pass through stable zone of silence 5, the condensation air contact ejected with cooling window 6, after cooling
Strand 4 be wound on the bobbin 9 driven by Wound-up roller, formed undrawn yarn, adjust tension force with a pair of deflector roll rollers 7 and 8,
Obtain double component polyester fiber, i.e. PET/PTT composite fibres.
The measuring pump extruded velocity is 45rpm, and the composite filament external diameter is about 0.12mm.
The PET/PTT composite fibres of 2 above-mentioned preparations are just twisted with the fingers and form polyester yarn core.
8wt% GMA monomers are dissolved in toluene together with initiator azodiisobutyronitrile, artificial PET/PTT is fine
Dimension is impregnated in the mixed solution, is led to nitrogen, is warming up to 75 DEG C, successive reaction 7h, by the way that reaction system is made with air contact
Obtain reaction terminating, the artificial PET/PTT composite fibres of deionized water rinsing.
Trace catalyst DMAP and potassium carbonate are dissolved in the water, by add potassium hydroxide adjust pH value to
12, cysteamine is added, the cysteamine alkaline solution that concentration is 8wt% is configured to, the PET/PTT that surface is introduced into epoxide group is answered
Condensating fiber is immersed, and 35min is reacted at 25 DEG C, and reaction cleans PET/PTT composite fibres with deionized water after terminating.
Wrinkle resistant antimicrobial composite yarns moderate resistance mother bacterial liquid includes:Titanium dioxide 4wt%, nano-Ag particles 1wt%, remaining is molten
Agent;The size of titanium dioxide granule is 60nm, and the size of nano-Ag particles is 20nm, solvent 0.1mM HCl/water solution.
Titanium dioxide granule is scattered in HCl/water solution, regulation pH value is 4, makes its fully dispersed under agitation, then
Nano silver particles are added under agitation.Then above raw material is added in clean reactor, temperature of reaction kettle is set to 60 DEG C, uniformly
Stir 4h so that nano-Ag particles are substantially adhered to titanium dioxide granule surface.
By dipping temperature control of the staple fibre in antibacterial mother liquor at 50 DEG C, dip time is 3 hours.At dipping
The staple fibre managed rinses 60min in the clear water of flowing, de- dry through centrifugal dehydrator, is finally carried out in 60 DEG C of baking oven
Drying, thus obtains the outer sliver of staple fibre of antibacterial.
Embodiment 2
As shown in Fig. 2 pre-dry PET and PTT is respectively placed in into two melting devices according to the ratio of mass fraction 7: 3
Melting is heated in 1a and 1b, temperature is set as 245 DEG C, each after melting, feed compound spinneret through measuring pump 2a and 2b respectively
First 3, extrude spun composite filament 4 and pass through stable zone of silence 5, the condensation air contact ejected with cooling window 6, after cooling
Strand 4 be wound on the bobbin 9 driven by Wound-up roller, formed undrawn yarn, adjust tension force with a pair of deflector roll rollers 7 and 8,
Obtain double component polyester fiber, i.e. PET/PTT composite fibres.
The measuring pump extruded velocity is 65rpm, and the composite filament external diameter is about 0.12mm.
The PET/PTT composite fibres of 2 above-mentioned preparations are just twisted with the fingers and form polyester yarn core.
11wt% GMA monomers are dissolved in toluene together with initiator ABVN, artificial PET/PTT is fine
Dimension is impregnated in the mixed solution, is led to nitrogen, is warming up to 68 DEG C, successive reaction 6h, by the way that reaction system is made with air contact
Obtain reaction terminating, the artificial PET/PTT composite fibres of deionized water rinsing.
Trace catalyst DMAP and potassium carbonate are dissolved in the water, by add potassium hydroxide adjust pH value to
12, cysteamine is added, the cysteamine alkaline solution that concentration is 13wt% is configured to, surface is introduced to the PET/PTT of epoxide group
Composite fibre is immersed, and 45min is reacted at 28 DEG C, and reaction cleans PET/PTT composite fibres with deionized water after terminating.
Wrinkle resistant antimicrobial composite yarns moderate resistance mother bacterial liquid includes:Titanium dioxide 3wt%, nano-Ag particles 1.5wt%, remaining is
Solvent;The size of titanium dioxide granule is 70nm, and the size of nano-Ag particles is 40nm, solvent 0.12mM HCl/water solution.
Titanium dioxide granule is scattered in HCl/water solution, regulation pH value is 4, makes its fully dispersed under agitation, then
Nano silver particles are added under agitation.Then above raw material is added in clean reactor, temperature of reaction kettle is set to 60 DEG C, uniformly
Stir 4h so that nano-Ag particles are substantially adhered to titanium dioxide granule surface.
By dipping temperature control of the staple fibre in antibacterial mother liquor at 55 DEG C, dip time is 3.5 hours.Will dipping
It is treated that staple fibre rinses 60min in the clear water of flowing, it is de- dry through centrifugal dehydrator, finally enter in 60 DEG C of baking oven
Row drying, thus obtains the outer sliver of staple fibre of antibacterial.
By the staple fibre, coiling on polyester yarn core, obtains complex yarn in the shape of a spiral.
(Escherichia coli, verdigris are false single for three kinds of bacteriums on PET/PTT fibers before and after to being modified according to embodiment 1
Born of the same parents bacterium and Staphylococcus aureus) survival rate detected, as shown in Fig. 3, Fig. 4 and Fig. 5.It can be seen that the present invention is real
Apply wrinkle resistant antimicrobial yarn (the PET/PTT-Ag@SiO of example preparation2) Survival probability of bacteria have reduction, three kinds of bacteriums only have respectively
0.94%th, 0.2%, 2.8% survival rate.
The explanation of above example is only intended to the method and its core concept for helping to understand the present invention.It should be pointed out that pair
, under the premise without departing from the principles of the invention, can also be to present invention progress for those skilled in the art
Some improvement and modification, these are improved and modification is also fallen into the protection domain of the claims in the present invention.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (10)
1. a kind of preparation method of complex yarn, it is characterised in that comprise the following steps:
The polyester yarn core of PET/PTT composite fibres formation is provided;
In the toluene solution that artificial PET/PTT fibers are immersed to GMA, existed by interface polymerization reaction
The artificial PET/PTT fiber surfaces fix PGMA, are then grafted cysteamine in artificial PET/PTT fiber surfaces;
The artificial PET/PTT fibers of surface grafting cysteamine are impregnated 1-5 hours in antibacterial mother liquor, dries, obtains after washing
The outer sliver of the staple fibre of antibacterial, the antibacterial mother liquor includes titanium dioxide granule, nano-Ag particles and aqueous hydrochloric acid solution;
By sliver outside the staple fibre, coiling on polyester yarn core, obtains complex yarn in the shape of a spiral.
2. preparation method according to claim 1, it is characterised in that the PET/PTT composite fibres are as follows
Prepare:
Polyethylene terephthalate and PTT are melted at 220 DEG C -270 DEG C respectively, then
PET/PTT composite fibres are obtained after composite spinning jete high speed spinning.
3. preparation method according to claim 2, it is characterised in that the polyethylene terephthalate is with poly- to benzene
The weight ratio of naphthalate is (5-9): (1-5).
4. preparation method according to claim 1, it is characterised in that the interface polymerization reaction enters as follows
OK:
GMA and initiator are dissolved in toluene and form mixed solution, by artificial PET/PTT fibers
Immerse in the mixed solution, 4~12h is reacted at 50~80 DEG C.
5. preparation method according to claim 4, it is characterised in that the concentration of the GMA is
5wt%~15wt%, the initiator is azodiisobutyronitrile, ABVN or benzoyl peroxide.
6. preparation method according to claim 1, it is characterised in that described in artificial PET/PTT fiber surfaces grafting half
Cystamine step is specially:
Catalyst and pH value regulator is soluble in water, regulation pH value be 12 after obtain alkaline aqueous solution;
Cysteamine is dissolved in the alkaline aqueous solution, is sufficiently stirred for, then by artificial PET/PTT fiber impregnations in cysteamine
The aqueous solution in, at 20~30 DEG C react 20~50min after cleaned with deionized water.
7. preparation method according to claim 6, it is characterised in that the catalyst is DMAP, described
PH value regulator is potassium carbonate and/or potassium hydroxide.
8. preparation method according to claim 6, it is characterised in that the concentration of the cysteamine is 4~15wt%.
9. the preparation method according to claim 1~8 any one, it is characterised in that the antibacterial mother liquor is according to as follows
It is prepared by method:
Titanium dioxide granule is scattered in HCl/water solution, regulation pH is 4, adds nano silver particles, 15min is stirred at room temperature,
Nano Silver is fixed on by titanium dioxide granule surface by self assembly.
10. the preparation method according to claim 1~8 any one, it is characterised in that the concentration of the titanium dioxide is
2wt%~6wt%, concentration 1wt%~3wt% of Nano Silver.
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WO2014155391A3 (en) * | 2013-03-28 | 2014-12-24 | Indian Council Of Agricultural Research | A device for detection and analysis of mycotoxins |
CN203890576U (en) * | 2014-05-29 | 2014-10-22 | 宁波武田纺织有限公司 | Novel composite yarn |
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