CN107254720B - A kind of far-infrared anti-biotic organic silazane fire resistance fibre and its production method - Google Patents
A kind of far-infrared anti-biotic organic silazane fire resistance fibre and its production method Download PDFInfo
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- CN107254720B CN107254720B CN201710536062.8A CN201710536062A CN107254720B CN 107254720 B CN107254720 B CN 107254720B CN 201710536062 A CN201710536062 A CN 201710536062A CN 107254720 B CN107254720 B CN 107254720B
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
- D01F2/24—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives
- D01F2/28—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives from organic cellulose esters or ethers, e.g. cellulose acetate
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/07—Addition of substances to the spinning solution or to the melt for making fire- or flame-proof filaments
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
- D01F1/103—Agents inhibiting growth of microorganisms
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F11/00—Chemical after-treatment of artificial filaments or the like during manufacture
- D01F11/02—Chemical after-treatment of artificial filaments or the like during manufacture of cellulose, cellulose derivatives, or proteins
Abstract
A kind of far-infrared anti-biotic organic silazane fire resistance fibre and its production method, the production method comprise the technical steps that: (1) preparing cellulose solution；(2) injection before spinning: cellulose solution is mixed with organic silazane composite flame-retardant agent, spinning glue is made；Wherein organic silazane composite flame-retardant agent is mixed using organosilan hydrolysis dispersion liquid and poly- borate；(3) spinning: spinning glue sprays spinning by spinning head, obtains fire resistance fibre head product through acid bath molding, washing；(4) it refines: the process fixation of obtained fire resistance fibre head product being crosslinked, is washed, is oiled and baking process obtains fire resistance fibre finished product.Organic silazane fire resistance fibre of the invention is stablized with fire-retardant far-infrared anti-biotic performance, and durability is good, and wash resistant is worn the features such as safe, technology content with higher and huge market prospects.
Description
Technical field
The present invention relates to a kind of organic silazane fire resistance fibres, belong to textile product field.
Background technique
The inside fire in 60% or more the whole world is as caused by textile at present, and 80% or more fire fatality is due to inhaling
Entering toxic smoke or asphyxia causes.With the development of human civilization and the formulation of every country fire safety regulation, fire proofing is mentioned
Increasingly higher demands are gone out.From initially only consider material flame retardant property, to fire proofing environmental protection, health care, appearance, comfortably
The requirement of property etc..Flame retardant synthetic fibers (flame-resistant terylene, flame-retardant acrylic fibre etc.) and inherent fire-retardant fiber (aramid fiber, polyimides
Deng) although having good anti-flammability, since the comfort of fabric is poor, and the contraction of chance fire, melting, drippage etc. are scarce
It falls into, can not meet requirement of the people to dress ornament comfort and safety.
Fire-retardant regenerated cellulose fiber (such as flame retardant viscose fiber) on the market at present, although can satisfy fire-retardant dress ornament
Processing and people's comfort basic to dressing (moisture absorption, ventilative) require, but there is different degrees of defect.For example, phosphorus system hinders
It fires when viscose rayon has burning and generates a large amount of harmful flue gases, contain P elements in fiber and fabric, what when burning generated has
Evil flue gas is easy to make one to suffocate, and waste makes the ill effects such as water resource eutrophication in degradation process；Silicon systems are fire-retardant viscous
Glue fiber have the defects that strength it is low, intolerant to alkali cleaning, nonwoven or filler material can only be used as, cannot act as fabric.
Compared to above-mentioned fire-retardant regenerated cellulose fiber, silicon nitrogen system fire-retardant regenerated cellulose fiber is due to using silicon nitrogen system
Fire retardant, overcome the burning of phosphorous flame-retardant viscose rayon discharge a large amount of harmful smokes and silicon systems anti-flaming viscose strength it is low and intolerant to
The defect of alkali cleaning can obtain the product of high fire-retardance, high textile performance, be that the fire-retardant regenerated cellulose of great development prospect is fine
Dimension.Such as silicon nitrogen flame retardant viscose fiber disclosed in the patent of Publication No. CN103789858 and CN104032401.
Nowadays the increase in demand with market to flame-retardant textile material, Prospect for Flame Retardant Fiber Materials be not applied only to army, fire-fighting,
The individual protections fields such as industrial protection clothes, the application of the commercial markets such as vehicles interior trim, home textile, specific group's clothes is equally not
It can estimate.Therefore multi-functional to the flame retardant property of fire resistance fibre and fabric, the requirement of the feature of environmental protection and durability also increasingly mentions
It is high.
Summary of the invention
The object of the present invention is to provide a kind of organic silazane fire resistance fibre with long-acting far infrared transmission and antibacterial functions
And its production method.
The production method of far-infrared anti-biotic organic silazane fire resistance fibre according to the present invention, comprises the technical steps that:
(1) cellulose solution is prepared；
(2) injection before spinning: cellulose solution is mixed with organic silazane composite flame-retardant agent, spinning glue is made；It is wherein organic
Silicon nitrogen composite combustion inhibitor is mixed using organosilan hydrolysis dispersion liquid and poly- borate；
(3) spinning: spinning glue sprays spinning by spinning head, obtains fire resistance fibre head product through acid bath molding, washing；
(4) it refines: the process fixation of obtained fire resistance fibre head product being crosslinked, is washed, is oiled and baking process obtains
Fire resistance fibre finished product.
Under preferable case, wherein the additive amount of organic silazane composite flame-retardant agent is 20 of content of cellulose in cellulose solution
~30% (w/w).
Under concrete condition, wherein organosilan hydrolyzes dispersion liquid chemical formula are as follows:
[MexOy·nSiO2]+[--CONH]
Wherein: Me represents metal ion；The metal ion is Ti4+And Ca2+；
Under preferable case, wherein silicon in organic silazane composite flame-retardant agent, titanium, calcium, boron ion molar ratio be 1:0.5~1:
1~2:0.5~1.
Under preferable case, wherein the structural formula of poly- borate is as follows:
Molecular weight is 800-1200.
Boron ion not only has excellent flame retardant effect, also has excellent sterilization, fungistatic effect.But if using inorganic
Boron salt class, since steric hindrance effect is poor, very it is easy hydrolysis and dissolve out, cannot retain in the fibre.The present invention, which uses, to be had
The poly- borate of specific structure formula and molecular weight, steric hindrance is big, can be permanently kept in fiber, hinders all the life with fiber lifetime
Combustion.Product additive amount can play fire-retardant, antibacterial double effects 5~8%.
In one embodiment, injecting step before spinning specifically: the compound resistance of organic silazane is injected into cellulose solution
Agent is fired, dynamic is first passed through and mixes, using static mixing, finally enter tempering tank and be mixed to get spinning glue again.Preferable case
Under, the temperature of hybrid reaction is 20~30 DEG C in tempering tank, and the time is 30-120 minutes.Under the selection process, cellulose with
Organic silazane composite flame-retardant agent can be sufficiently combined together.
In another embodiment, the wherein fixation cross-linking process step in refinement step specifically: by water, fixed be crosslinked
Agent, NaHSO3Fixed crosslinking 10-30min in the fixation bath prepared according to a certain ratio.Under preferable case, the pH value of fixation bath is kept
6.0~8.0,75-90 DEG C of the temperature of fixation bath；At the process conditions, inventors be surprised to learn that, fixed friendship can be greatly improved
Join reactivity, i.e. raising organic silazane fire resistance fibre washing resistance performance；The concentration that crosslinking agent need to only be fixed is 20-25wt%'s
Fixation bath ensures that the resistance to alkali cleaning performance of organic silazane fire resistance fibre, Loss Rate≤2% of fire retardant when alkali cleaning.
Under concrete condition, the composition of the fixed crosslinking agent includes multi-hydroxy carboxy acid, polyhydroxy-alcohol, sugar and metal component.
Under preferable case, the multi-hydroxy carboxy acid is the mixing of one or more of lactic acid, tartaric acid, citric acid or beta-hydroxy-butanoic acid
Object；The polyhydroxy-alcohol is the mixture of one or more of propylene glycol, glycerine, ethylene glycol or polyhydroxy sterol；It is described
Sugar is the mixture of one or more of sucrose, fructose or glucose；The metal component is titanium tetrachloride, calcium chloride, sulphur
The mixture of one or more of sour aluminium or titanium tetraisopropylate acid esters.
In a preferred embodiment, the fixed cross-linking process step is to react fiber head product by cross-linked graft twice,
Cross-linked graft reaction twice is intermediate to be carried out pressing dry processing by pressure roller.It carries out pressing dry place by fiber of the pressure roller to preceding working procedure
Reason, conducive to sufficiently reacting for subsequent stem grafting cross-linking agent and fiber, sufficiently its enduring quality of resistance to alkali cleaning of fire resistance fibre after reaction is aobvious
It writes and improves.
Organic silazane fire resistance fibre of the invention can produced containing other adding ingredients such as mill base, antistatic agent
Colored regenerated cellulose fiber, antistatic regenerated celulose fibre are produced by adding the above heterogeneity in journey.
Organic silazane fire resistance fibre of the invention, not only can pure spun yarn, fabric and fabric, but also can be with other fibers or original
Material is made blend fibre, for example, with phosphorous flame-retardant regenerated celulose fibre, silicon systems fire-retardant regenerated cellulose fiber, pure cotton, fire-retardant
Cotton, various regenerated celulose fibres (such as common viscose fiber, Modal fibre, tencel), wool, cashmere, aramid fiber, fragrant sulfone
Synthetic fibre, polyimides, alginate fibre, various synthetic fibers, various flame retardant synthetic fibers, pre-oxidized fibers, glass fibre etc. are a variety of
Fiber is blended in all proportions, is made into the different yarn of function, fabric and fabric.
Organic silazane fire resistance fibre of the invention or blend fibre can also exist in the form of glassine paper, can be used as high-end
Ornament materials and packaging material.
Organic silazane fire resistance fibre of the invention or blend fibre can also exist in the form of foamed cotton, can be used as various
Flame retardant filler, such as fire blocked mattress, flame-retardant sofa pad.
Fabric made of organic silazane fire resistance fibre according to the present invention can be used for protective garment, noneffectives' clothes, old age
People's clothes, infant clothing, land, sea and air transport interior trim, the cover for seat of public place, sofa, mattress curtain, underskirt, socks
Son, wrap for joints (knee-pad, elbow support, wrist guard), bedding, intelligent garments worn etc..
Organic silazane fire resistance fibre of the invention is stablized with fire-retardant far-infrared anti-biotic performance, and durability is good, and wash resistant is worn
It is safe the features such as.The discovery of multiple functions is also that the fire resistance fibre product has widened application range: not only flame retardant property is good
It may be used as special protective garment, home textile, vehicles interior trim etc..Simultaneously because its traffic safety and riding comfort, excellent far-infrared anti-biotic
Equal healthcare functions are also very suitable for making such as antibacterial underwear, antibacterial socks, health care textile etc., technology content with higher
With huge market prospects.
Detailed description of the invention
Fig. 1 is the scanning electron microscope image of organic silazane fire resistance fibre of the invention；
Fig. 2 is the partial enlargement image of Fig. 1；
Fig. 3 is the cross-sectional image of fiber in Fig. 1；
Fig. 4 is the scanning electron microscope image after 700 DEG C of calcinations of organic silazane fire resistance fibre of the invention.
Specific embodiment
One, primary raw material and equipment
Organic silazane series composite flame retardant: Beijing Sail orchid fire resistance fibre Co., Ltd.
Fixed crosslinking agent: Beijing Sail orchid fire resistance fibre Co., Ltd.
Injection device before cellulose solution and spinning: Shandong YINYING Chemical Fiber Co., Ltd.
Spinning and equipment for after-treatment: Shandong YINYING Chemical Fiber Co., Ltd.
Detecting instrument and unit: national textile fabrics Quality Supervision and Inspection Center, Donghua University, Beijing Institute of Technology are fire-retardant
Material tests center, Beijing Sail orchid fire resistance fibre Co., Ltd.
Two, production process
Embodiment 1
Using first fibre 7.5%, containing alkali 5.5%, viscosity 53 seconds, degree of ripeness 16.2ml cellulose solution, inject to fiber
The organic silazane composite flame-retardant agent of element amount 20wt%, wherein silicon in organic silazane composite flame-retardant agent, titanium, calcium, boron ion mole
Than for 1:0.5:1:0.5.It first passes through dynamic to mix, using static mixing, finally enters tempering tank and be mixed to get spinning again
Glue.Incorporation time is 50min to tempering tank again, and temperature is 25 DEG C.Mixing adhesiveness 70 seconds, degree of ripeness (10% ammonium chloride)
10ml.It is regenerated in coagulating bath by spinning head spinning, coagulation bath composition is sulfuric acid 75g/l, sodium sulphate 160g/l, zinc sulfate
40 DEG C of 20g/l, temperature.Fibre bundle progress drawing-off, cutting, washing, fixation after regeneration are crosslinked, bleach, oiling, drying, beating
Packet.The wherein condition of fixed crosslinking bath are as follows: the concentration of fixed crosslinking agent is 15%, and pH value is maintained at 7.5 or so, 80 DEG C of temperature；
Fixed cross-linking process step is to react fiber head product by cross-linked graft twice, cross-linked graft reaction twice it is intermediate by pressure roller into
Row press dry processing, and the total time of cross-linked graft reaction twice is 30min.
Embodiment 2
Using first fibre 7.5%, containing alkali 5.5%, viscosity 53 seconds, degree of ripeness 16.2ml cellulose solution, inject to fiber
The organic silazane composite flame-retardant agent of element amount 28wt%, wherein silicon in organic silazane composite flame-retardant agent, titanium, calcium, boron ion mole
Than for 1:1:1:1.It first passes through dynamic to mix, using static mixing, finally enters tempering tank and be mixed to get spinning glue again.It is mixed
Closing bucket, incorporation time is 60min again, and temperature is 30 DEG C.Mixing adhesiveness 70 seconds, degree of ripeness (10% ammonium chloride) 10ml.Pass through
Spinning head spinning regenerates in coagulating bath, and coagulation bath composition is sulfuric acid 75g/l, sodium sulphate 160g/l, zinc sulfate 20g/l, temperature
40℃.Fibre bundle progress drawing-off, cutting, washing, fixation after regeneration are crosslinked, bleach, oiling, drying, being packaged.Wherein fix
It is crosslinked the condition of bath are as follows: the concentration of fixed crosslinking agent is 25%, and pH value is maintained at 8.0 or so, 85 DEG C of temperature；Fixed cross-linking process step
It is to react fiber head product by cross-linked graft twice, cross-linked graft reaction twice is intermediate to be carried out pressing dry processing by pressure roller,
The total time of cross-linked graft reaction twice is 20min.
Three, characterization and test
Fiber surface morphology and cross-sectional structure are characterized using scanning electron microscope (SEM).Scanning electron microscope: Japanese JEOL
Company's production, JSM-5600LV.
Limiting oxygen index determination: organic silazane fire-retardant regenerated cellulose staple fiber is made into 200g/m2Non-woven fabrics, respectively with organic
Silicon nitrogen fire-retardant regenerated cellulose staple fiber and non-woven fabrics measure oxygen index (OI).Oxygen index (OI) test method is according to GB/T 5454-1997
" textile combustion performance test oxygen index method " commission Beijing Institute of Technology's fire proofing inspection center is detected.Main test
Equipment: FTA II oxygen index instrument.
Resistance to alkali cleaning performance test: it is tested by standard HX/T 51011-2015 " organic silazane fire retardant viscose short filament ".
Alkali cleaning specific method is that fiber sample is placed in the Na that the concentration of bath raio 1:50 is 3g/L2CO395 DEG C of heating 1h in solution.Then
Respectively by before alkali cleaning, after organic matter is eliminated in 700 DEG C of calcinations of fiber sample after alkali cleaning, the quality of ignition residue (fire retardant) is measured
Percentage.Fire retardant mass percent difference is the numerical value of resistance to alkali cleaning before and after alkali cleaning.
Far infrared performance test: it is 200g/m that the short fibre of fire resistance fibre, which is woven into density,2Pure spinning fabric, washing 50 times after
Tested that (washing methods rinses 1.5h, change water 2 in rinse cycle referring to wash conditions washing 12.5h in GB/T 17596
It is secondary, it is dehydrated 4min, whole process is washing 50 times).Reference standard FZ/T 64010-2000 is measured, CAS 115-2005
" healthcare function textile " is evaluated.Consignment unit is national textile fabrics Quality Supervision and Inspection Center.
Antibacterial functions test: it is 200g/m that the short fibre of fire resistance fibre, which is woven into density,2Pure spinning fabric, washing 50 times are (same
On) after tested.According to standard GB/T/T 20944.3-2009 " antibacterial textile performance evaluation Part III succusion "
Carry out evaluation measurement.Consignment unit is national textile fabrics Quality Supervision and Inspection Center.
The structure feature of 3.1 organic silazane fire resistance fibres
It will be seen from figure 1 that there are a big longitudinal grooves on organic silazane fire resistance fibre surface of the invention, favorably
It is ventilative in fiber hydrofuge.Fig. 2 shows that fiber surface is relatively smooth, not the solid particle of fire retardant, this is because fire retardant is
It is added in the form of precursor solution, the polysilane for meeting coagulating bath generation solgel reaction generation solid during the spinning process is equal
It is even to be dispersed in fibrous inside, so surface does not observe fire-retardant particles.Fiber surface only has some along axial small thin
Line, this may illustrate that cellulosic molecule axially has preferable orientation along fiber in forming process, and flame retardant constituent is not package
In fiber surface, it is that crossover network is formed with " T-type " structure and line style regenerated cellulose, is tightly combined with fiber bodies.Fig. 3 is
Fiber cross sections figure, due to flame retardant constituent be not easy to quench in liquid nitrogen it is disconnected, can small protrusion or recess are caused in section, so can
To observe that section is more coarse, degree of roughness is more uniform, and display fire retardant is distributed also more uniformly on cross section, and
There is no apparent interfacial separation situation, illustrates that fire retardant and cellulose matrix bonding state are preferable.Fig. 4 is 700 DEG C of calcinations of fiber
Fall the distribution situation that organic matter retains fire retardant later, picture shows that fire retardant is in continuous at graininess in the fibre after calcination
Net distribution, partial size is small, it is average in 100nm hereinafter, and be evenly distributed, reunite without obvious.
The flame retardant property and washing resistance performance of 3.2 organic silazane system fire resistance fibres
Limit oxygen index LOI is one of fire proofing important indicator.The oxygen index (OI) of common viscose fiber is less than 20%, very
It is easy burning.Generally belong to nonflammable material in material of the limit oxygen index greater than 28%.
The flame test result of 1. organic silazane fire resistance fibre of table
Through overtesting and test, when the total effective content of fire retardant is greater than 28% in fiber, the fire-retardant regeneration of organic silazane is fine
The limit oxygen index for tieing up plain staple fiber is greater than 36%.The oxygen index (OI) of its non-woven fabrics fabric is also greater than 33%.In oxygen index (OI), this refers to
It puts on, it is very close with aramid fiber 1313, it is better than phosphorus system, silicon systems flame retardant viscose fiber.And smog is small when burning, without poisonous and harmful
Phenomena such as gas generates, and no melting drippage is shunk.
The washing resistance performance of 2. organic silazane fire-retardant regenerated cellulose fiber of table
A note: washing process is to wash 12.5h by wash conditions in GB/T 17596, rinses 1.5h, changes water in rinse cycle
2 times, it is dehydrated 4min, whole process is washing 50 times.Detect unit: Beijing Sail orchid fire resistance fibre Co., Ltd research center is real
Test room.
From test result as it can be seen that its resistance to alkali cleaning performance of organic silazane fire resistance fibre and wash durability are preferable, fire retardant
Amount lost is few, this is because fire retardant T-shaped network structure distribution in the fibre, close with Hydrogenbond with cellulosic molecule.
And by after crosslinking curing, fire retardant becomes alkalinity from faintly acid, resistance to alkali cleaning performance is further increased.
The far-infrared functional of 3.3 organic silazane fire resistance fibres is studied
The electromagnetic wave that the wavelength of infrared ray is 0.76~1000 μm, medium wavelength are greater than 5 μm of commonly referred to as far infrareds.Far
Infrared fibre and its fabric can absorb the energy that human body and ambient enviroment are distributed in the form of infra-red radiation, and can radiate 4~14 μ
M goes out the electromagnetic wave that this human body needs wave band.Under the wave band, human body surface molecule absorption radiation, temperature is increased, and human body generates
Warmth sensation, internal Marjoram Extract accelerate blood circulation and metabolism.
It removes outside coating final finishing, ceramic powder is added when general far IR fibre is spinning or contains ceramic powder
Prepared by master batch, but this method has higher limitation to the content and granularity of ceramic powder.Content is low, and far-infrared functional is not
Significantly.Too high levels or granularity is excessive will lead to difficulty in spinning, fibrous mechanical property is greatly reduced.And with far-infrared functional
Organic silazane composite flame-retardant agent is that spinning is added in organic solution form, has a degree of mention to the upper limit of additive level
Height, after spinning moulding, fire retardant is uniformly dispersed in fibre substrate, and partial size is small, reaches sub-micron rank, hands over using solidification
Join, silicon, titanium, calcium, boron element and the organosilan in fire retardant are further incorporated on regenerated cellulose main chain, form silicon titanium calcium
Boron system ceramic network constitutes far infrared transmission group, to have stronger far-infrared transmitting function.
The pure textile fabric far infrared test result of 3. organic silazane fire resistance fibre of table
Through overtesting and test, when the total effective content of fire retardant is greater than 20% in fiber, organic silazane fire resistance fibre is pure
The normal emittance of textile fabric is greater than 89%, higher than the requirement of far infrared product normal emittance 80%, illustrates that the fiber has
There is preferable far-infrared transmitting function.
The fungistatic effect of 3.4 organic silazane fire resistance fibres is studied
4. organic silazane fire resistance fibre uni-material fabric fungistatic effect of table
According to test and testing result, when the total effective content of fire retardant is greater than 20% in fiber, by the organic of washing
The pure woven fabric material of silicon nitrogen fire resistance fibre has been more than 96% to the bacteriostasis rate for 24 hours of three kinds of bacteriums or fungi, can assert the fire-retardant fibre of silicon nitrogen
Dimension has the effect of preferable antibacterial.Especially for staphylococcus aureus, antibacterial effect is significant.And this result is fabric
Antibacterial effect after washing 50 times, illustrates that additive component is firmly combined with cellulosic matrix, and antibacterial effect will not be because anti-
After backwashing is washed and is eliminated, and durability is good.
The antibacterial flame-retardant agent composition of organic silazane fire resistance fibre is mainly submicron-scale nonmetal oxide and metal oxygen
The silicon titanium calcium boron system ceramic network that compound is constituted, antifungal mechanism are that the far infrared radiation ability of the fiber makes to divide in microbial body
Son vibration aggravation, cell metabolism is abnormal, causes the death of microorganism.Cellulose surface is grafted with a large amount of poly- borates simultaneously
In the case where pH is neutral, cell wall or cell body are negatively charged for molecule, most of bacterium and fungi, since Electrostatic Absorption is imitated
It answers, the presence of a large amount of poly- boric acid ester molecules has fettered the freedom degree of bacterium, that is, sloughing the free amino cation of acyl group can neutralize
The negative electrical charge of bacterium surface changes its surface charge number and causes " bacterolysis ", or enters inside bacterium, sends out with bacterial cytoplasm
Raw reaction inhibits the metabolism of bacterium to cause its death.
In the present invention, due to organic silazane far-infrared anti-biotic fire retardant be before spinning middle addition precursor solution to spinning
It in liquid, is first grafted in spinning process and cellulose blending, then crosslinks curing reaction with fiber again, so as to uniformly jail
Solid be distributed in fiber, it is not easily to fall off, belong to long-acting far-infrared anti-biotic fire resistance fibre.Therefore it is added relative to final finishing fire-retardant
Agent/antibacterial agent fiber or textile, organic silazane fire-retardant regenerated cellulose fiber of the invention have fire-retardant far-infrared anti-biotic
Performance is stablized, and durability is good, and wash resistant wears the features such as safe.The discovery of multiple functions is also that the fire resistance fibre product is widened
Application range: not only flame retardant property well may be used as special protective garment, home textile, vehicles interior trim etc..Simultaneously because its
Traffic safety and riding comfort, the healthcare functions such as excellent far-infrared anti-biotic are also very suitable for making such as antibacterial underwear, antibacterial socks, health care
Textile etc..In conclusion organic silazane fire-retardant regenerated cellulose fiber meets all of novel flame-retardant far-infrared anti-biotic fiber
It is required that technology content with higher and huge market prospects.
Claims (4)
1. a kind of production method of far-infrared anti-biotic organic silazane fire resistance fibre, comprises the technical steps that:
(1) cellulose solution is prepared；
(2) injection before spinning: cellulose solution is mixed with organic silazane composite flame-retardant agent, spinning glue is made；Wherein organic silazane
Composite flame-retardant agent is mixed using organosilan hydrolysis dispersion liquid and poly- borate；
(3) spinning: spinning glue sprays spinning by spinning head, obtains fire resistance fibre head product through acid bath molding, washing；
(4) refine: by obtained fire resistance fibre head product by it is fixed be crosslinked, wash, oil and baking process obtain it is fire-retardant
Fiber finished product；
Wherein the additive amount of organic silazane composite flame-retardant agent is 20~30% (w/w) of content of cellulose in cellulose solution；
Wherein organosilan hydrolyzes dispersion liquid chemical formula are as follows:
[MexOy·n SiO2]+[--CONH]
Wherein: Me represents metal ion；The metal ion is Ti4+And Ca2+；
Wherein silicon in organic silazane composite flame-retardant agent, titanium, calcium, boron ion molar ratio be 1:0.5~1:1~2:0.5~1；
Wherein the structural formula of poly- borate is as follows:
Molecular weight is 800-1200；
Injecting step before spinning specifically: organosilicon nitrogen composite combustion inhibitor is injected into cellulose solution, is first passed through dynamic and is mixed, then
By static mixing, finally enters tempering tank and be mixed to get spinning glue again；
The temperature of hybrid reaction is 20~30 DEG C in tempering tank, and the time is 30-120 minutes.
2. the production method of far-infrared anti-biotic organic silazane fire resistance fibre according to claim 1, wherein in refinement step
Fixation cross-linking process step specifically: by water, fixed crosslinking agent, NaHSO3Fixed crosslinking 10-30min in the fixation bath of preparation.
3. the production method of far-infrared anti-biotic organic silazane fire resistance fibre according to claim 2, the fixed crosslinking agent
Composition include multi-hydroxy carboxy acid, polyhydroxy-alcohol, sugar and metal component.
4. the far-infrared anti-biotic organic silazane fire resistance fibre of production method production according to claim 1 to 3.
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| CN110982107A (en) * | 2019-12-27 | 2020-04-10 | 北京赛欧兰阻燃纤维有限公司 | Flame-retardant, antibacterial and anti-mite regenerated cellulose foam cotton and preparation method thereof |
| CN112575409A (en) * | 2020-12-01 | 2021-03-30 | 江苏合源纺织科技有限公司 | Flame-retardant cotton-like polyester-nylon composite superfine fiber and production method thereof |
| CN115387113A (en) * | 2022-07-28 | 2022-11-25 | 郑喜才 | Far infrared deodorization fabric and preparation method thereof |
| CN117468110A (en) * | 2023-11-01 | 2024-01-30 | 广东秋盛资源股份有限公司 | Far infrared antibacterial organic silicon nitrogen flame-retardant fiber and production method thereof |
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