CN109652977A - A kind of resistance to ultraviolet aramid fiber of flame retardant type - Google Patents
A kind of resistance to ultraviolet aramid fiber of flame retardant type Download PDFInfo
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- CN109652977A CN109652977A CN201811497406.XA CN201811497406A CN109652977A CN 109652977 A CN109652977 A CN 109652977A CN 201811497406 A CN201811497406 A CN 201811497406A CN 109652977 A CN109652977 A CN 109652977A
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- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
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- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/50—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with hydrogen peroxide or peroxides of metals; with persulfuric, permanganic, pernitric, percarbonic acids or their salts
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- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/51—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof
- D06M11/55—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof with sulfur trioxide; with sulfuric acid or thiosulfuric acid or their salts
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- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/80—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with boron or compounds thereof, e.g. borides
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- D06M13/50—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with organometallic compounds; with organic compounds containing boron, silicon, selenium or tellurium atoms
- D06M13/51—Compounds with at least one carbon-metal or carbon-boron, carbon-silicon, carbon-selenium, or carbon-tellurium bond
- D06M13/513—Compounds with at least one carbon-metal or carbon-boron, carbon-silicon, carbon-selenium, or carbon-tellurium bond with at least one carbon-silicon bond
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- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
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- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/34—Polyamides
- D06M2101/36—Aromatic polyamides
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- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/25—Resistance to light or sun, i.e. protection of the textile itself as well as UV shielding materials or treatment compositions therefor; Anti-yellowing treatments
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- D06M2200/30—Flame or heat resistance, fire retardancy properties
Abstract
This patent is related to a kind of resistance to ultraviolet aramid fiber of flame retardant type, and preparation method includes the following steps: for nanoparticle to be added in hydrogen peroxide solution, and 0.5~1h of magnetic agitation adds sulfuric acid solution, continues magnetic agitation 0.5h；Then filter cake is obtained by filtration, then by filter cake washing, drying, obtains modified particle, obtains organics modifications particle using curcumin, dopamine modification, is finally reacted with silicon methoxylation aramid fiber, obtained a kind of aramid fiber that surface is modified.With high ultraviolet absorbability, it is provided simultaneously with extremely low catalytic activity, avoids destruction of the radiative process photocatalysis to fibre structure, especially, present invention improves the flame retardant properties of aramid fiber.
Description
Technical field
The present invention relates to a kind of process for modifying surface of aramid fiber, and in particular to a kind of resistance to ultraviolet aramid fiber of flame retardant type is fine
Dimension.
Background technique
In recent years, people are the surface-active and ultra-violet resistance for improving aramid fiber, introduce purple in aramid fiber surface
External shield agent.Ultraviolet light screener is divided into organic ultraviolet screener and inorganic UV screener.But there are resistance to for organic ultraviolet screener
Hot and oxidative resistance is poor.These problems are well controlled in inorganic UV screener, but there are catalytic activity
High problem brings the risk of photocatalytic degradation to organic fiber；In addition, inorganic material and the binding force of organic fiber are limited,
It will appear the problem of falling off in use, to influence service reliability.
In addition, in certain special occasions, such as fireman, steel worker, electric welder, chemical plant worker, oil plant work
The tooling of the dresses such as people and oil drilling worker and the fighting uniform of Male Soldiers require flame retarding function, at the same also need and
Fire-retardant whether there is or not the requirements of molten drop, to avoid secondary scald；In many civilian occasions, as hotel, hall, stage decoration so that
The decorations such as seat webbing, curtain, the bed-clothes of the vehicles such as aircraft, train and automobile and garment for children etc. should equally have
Standby flame retarding function.
Inventor seminar has developed a kind of novel aramid fiber for having both surface-active and ultra-violet resistance, has preferable
Resistance to ultraviolet effect, but without reference to flame retardant property.
Summary of the invention
Under the premise of keeping the original mechanical property of fiber and UV resistance not to reduce, novel nothing is researched and developed
The ultraviolet modifying agent of machine forms a kind of stronger coating of binding force in aramid fiber surface, to assign by new preparation method
Modification of aramid fiber UV resistance and anti-flammability.
In order to achieve the above-mentioned object of the invention, the technical solution adopted by the present invention is that:
The preparation method of a kind of resistance to ultraviolet aramid fiber of flame retardant type, the resistance to ultraviolet aramid fiber of flame retardant type includes the following steps:
(1) cerium salt and inorganic base are dissolved in water, stir 20~45min, hydrogen peroxide is then added, obtains suspension, adjusted
10~20h is reacted after the pH to 10~14 of suspension at 20 DEG C~50 DEG C, using washing, filtering, it is dry after, 500~
1~3h is calcined at 800 DEG C, obtains nano-cerium oxide；The nano-cerium oxide, boron source and nitrogenous compound are dispersed in by ethyl alcohol
In the mixed solution of water composition, 0.5~1.5h is stirred by ultrasonic, using revolving, it is dry after be redispersed in cobalt nitrate aqueous solution
In, 0.5~1h is stirred by ultrasonic, using rotating, be dried to obtain solids；The solids is under nitrogen source gas atmosphere, in 850
DEG C~950 DEG C at calcine 13~15h, then crush obtain nanoparticle；
(2) nanoparticle is added in hydrogen peroxide solution, 0.5~1h of magnetic agitation, adds sulfuric acid solution, continue magnetic agitation
0.5h；Then filter cake is obtained by filtration, then by filter cake washing, drying, obtains modified particle；
(3) modified particle and Dopamine hydrochloride are added in the buffer that pH is 8.3~8.8,2~3h is stirred at room temperature；
Then curcumin ethanol solution is added, continues 1~2h of stirring；Then it is filtered, washed, dries, obtain organics modifications grain
Son；
(4) silicon methoxylation aramid fiber is immersed in the aqueous solution containing trimethyl silanol, vibrates 0.5~1h；Then it soaks
Enter in the aqueous solution containing organics modifications particle, 2~3h of oscillating reactions at 70 DEG C~80 DEG C；After reaction by washing
It washs, dry, obtain the resistance to ultraviolet aramid fiber of flame retardant type.
A kind of preparation method of the resistance to ultraviolet aramid fiber of flame retardant type, includes the following steps:
(1) cerium salt and inorganic base are dissolved in water, stir 20~45min, hydrogen peroxide is then added, obtains suspension, adjusted
10~20h is reacted after the pH to 10~14 of suspension at 20 DEG C~50 DEG C, using washing, filtering, it is dry after, 500~
1~3h is calcined at 800 DEG C, obtains nano-cerium oxide；The nano-cerium oxide, boron source and nitrogenous compound are dispersed in by ethyl alcohol
In the mixed solution of water composition, 0.5~1.5h is stirred by ultrasonic, using revolving, it is dry after be redispersed in cobalt nitrate aqueous solution
In, 0.5~1h is stirred by ultrasonic, using rotating, be dried to obtain solids；The solids is under nitrogen source gas atmosphere, in 850
DEG C~950 DEG C at calcine 13~15h, then crush obtain nanoparticle；
(2) nanoparticle is added in hydrogen peroxide solution, 0.5~1h of magnetic agitation, adds sulfuric acid solution, continue magnetic agitation
0.5h；Then filter cake is obtained by filtration, then by filter cake washing, drying, obtains modified particle；
(3) modified particle and Dopamine hydrochloride are added in the buffer that pH is 8.3~8.8,2~3h is stirred at room temperature；
Then curcumin ethanol solution is added, continues 1~2h of stirring；Then it is filtered, washed, dries, obtain organics modifications grain
Son；
(4) silicon methoxylation aramid fiber is immersed in the aqueous solution containing trimethyl silanol, vibrates 0.5~1h；Then it soaks
Enter in the aqueous solution containing organics modifications particle, 2~3h of oscillating reactions at 70 DEG C~80 DEG C；After reaction by washing
It washs, dry, obtain the resistance to ultraviolet aramid fiber of flame retardant type.
In the present invention, silicon methoxylation aramid fiber is the prior art, is recorded in 2018104223562 patent applications；
The aramid fiber is para-aramid fiber, meta-aramid fibers.
In the present invention, the inorganic base is sodium hydroxide or potassium hydroxide；The cerium salt is cerous nitrate, in cerium chloride
A kind of or their any combination；The boron source is one of boric acid, metaboric acid；The nitrogenous compound is urea, three
One of chlorocyanamide, ammonium bromide.
In the present invention, nano-cerium oxide, boron source, nitrogenous compound, cobalt nitrate mass ratio be 100: (30~50): (60
~120): (10~13).The present invention adds nitric acid after reacting after nano-cerium oxide, boron source and nitrogenous compound mixing and absorption
Cobalt, it is unfavorable that boron nitride is wrapped up in reduction, while in nano-cerium oxide adsorption cobalt, according to elemental analysis, it can be found that receiving
Rice corpuscles contains cobalt ions；The presence of cobalt be believed to improve nanoparticle reactivity especially with aramid fiber interfacial reaction performance, this
Attachment to nanoparticle on aramid fiber surface is advantageous, to be improved effect to anti-flammability, in addition cobalt may improve nanoparticle
With the performance of aramid fiber interface conjugate, to improving, interface anti-flammability is advantageous.
In the present invention, the mass ratio of cerium salt and inorganic base is 100: (20~50)；The nitrogen source gas is nitrogen, in ammonia
One kind；The buffer is one of Tris-HCl, disodium hydrogen phosphate-phosphate sodium dihydrogen buffer solution.Nanoparticle, dioxygen
Aqueous solution, sulfuric acid solution mass ratio be 100: (60~70): (5~7)；The mass concentration point of hydrogen peroxide solution, sulfuric acid solution
It Wei 30%, 98%.This step is that the present invention is first public, can form micro groove in nanoparticle surface, it should be that oxidation is carved
Caused by erosion, nanoparticle surface active group such as hydroxyl can also be increased；In this way to the reactivity and boundary for improving nanoparticle
Face effect is advantageous.
In the present invention, modified particle, Dopamine hydrochloride, curcumin mass ratio be 100: (30~50): (8~12).It adopts
Reaction of the successively reaction on Dopamine hydrochloride on modified particle surface is combined to influence with a small amount of curcumin small, while curcumin can
To be reacted to particle surface, this is advantageous to raising particle and aramid fiber interfacial effect, can be seen that curcumin from embodiment comparison
Addition improves particle in the binding force on aramid fiber surface.
In the present invention, silicon methoxylation aramid fiber, organics modifications particle, trimethyl silanol mass ratio be 1: (2~
9): (0.3~0.35).The addition of trimethyl silanol on the one hand can be compatible with the silicon methoxyl group on aramid fiber surface, on the other hand may be used
With with curcumin, dopamine occur it is certain react, more important is, can act synergistically with boron nitride, improve flame retardant property；
From embodiment as can be seen that the addition of trimethyl silanol is to fire-retardant advantageous.
In the present invention, the preparation method of silicon methoxylation aramid fiber can be as follows, by mass,
(1) aramid fiber successively submerges in acetone, petroleum ether, deionized water, stops 2h~4h respectively, then washs, dry,
Obtain the aramid fiber of clean surface；
(2) aramid fiber of 1 part of clean surface is immersed to the alcohol for the alkali metal hydroxide that mass concentration is 5.0~15.0wt%
In solution, under conditions of temperature is 50 DEG C~80 DEG C, 4~8h of oscillating reactions；After reaction, it washes, dry to get table is arrived
Face has the aramid fiber of amino and carboxyl；
(3) under atmosphere of inert gases, the surface that 1 part of step (2) obtains is contained with the immersion of the aramid fiber of amino and carboxyl
In 100~200 parts of γ-glycidyl ether oxygen propyl trimethoxy silicanes, 150~350 parts of organic solvents, temperature be 50~
10~18h is reacted under the conditions of 100 DEG C, obtains silicon methoxylation aramid fiber.
Compared with prior art, the beneficial effect that the present invention obtains is:
1, the present invention is led on the basis of poly-dopamine modified lithium makes inorganic nano-particle and aramid fiber surface with chemistry key connection
It crosses hydrogen peroxide, the modified particle that sulfuric acid solution nanoparticle obtains surface texture and activity improves, further improves and receive
The reactivity of rice corpuscles.
2, poly-dopamine modified lithium unrest layer boron nitride coating cerium oxide tool is maintained for inorganic nanometer modified dose provided by the invention
There is the ability of high ultraviolet absorbability, high heat resistance and very low photocatalytic activity, and by the addition of cobalt, to nanoparticle
Adhesive force promoted, thus to fire-retardant advantageous.
3, the present invention fire-retardant good aramid fiber surface itself by nanoparticle, nanoparticle and aramid fiber interface interaction with
And the synergistic effect of silanol, flame retardant effect is significantly improved, and influence on UV resistance very small.
Specific embodiment
With reference to 2018104223562:
(1) by 1g aramid fiber (Kevlar-49,12 μm of diameter, density 1.45g/m3, DuPont Corporation's production) successively submerge
Into 70 DEG C of acetone, 75 DEG C of petroleum ether and 115 DEG C of deionized water, retain 3h respectively；Fiber is then taken out, it is true at 80 DEG C
It is dry in empty baking oven, clean aramid fiber is obtained, KF is denoted as；
(2) 10.5g sodium hydroxide is dissolved in 120mL ethyl alcohol, the ethanol solution A of sodium hydroxide is made；It will be obtained by step (1)
Clean aramid fiber KF be immersed in above-mentioned solution A, at 65 DEG C, oscillating reactions 5h is after reaction, washing, dry, obtains
The aramid fiber of amino and carboxyl is had to surface；
(3) surface 0.25g is had to aramid fiber and 30mL γ-glycidyl ether oxygen propyl trimethoxy of amino and carboxyl
Silane is added in 70mL ethyl alcohol, under nitrogen atmosphere, in 70 DEG C of reaction 12h；After reaction, fiber is taken out, surface is obtained
Aramid fiber with silicon methoxyl group.
Embodiment 1
1, the preparation of modification of aramid fiber
(1) in aqueous solution by 12.32g cerium chloride, the dissolution of 6g sodium hydroxide, 35min is stirred, suspending liquid A is obtained；Dioxygen is added
Water is filtered, washed, is dried in 40 DEG C of reaction 12h with the pH to 12 that sodium hydroxide adjusts suspending liquid A；In Muffle furnace, in
2h is calcined at 700 DEG C, obtains nano-cerium oxide CeO2；3g nano-cerium oxide, 1.2g boric acid and 2.1g urea are put into 400mL second
In the mixed solution of pure and mild 200mL water, ultrasonic disperse 1h；Dried object is obtained after revolving, drying, is then dispersed in dried object
In 100 milliliters of cobalt nitrate aqueous solutions (3.6mg/mL), it is stirred by ultrasonic 50 minutes, using rotating, be dried to obtain solids；It is described
Solids under nitrogen atmosphere, at 950 DEG C, calcines 15h；After reaction, it washs, dry, pulverize to obtain nanoparticle, grain
Diameter is less than 100nm, and elemental analysis is found out containing cobalt element；
(2) 5g nanoparticle is added in 3g hydrogen peroxide solution (30wt%), it is molten to add 0.3 sulfuric acid by 0.5~1h of magnetic agitation
Liquid (98wt%) continues magnetic agitation 0.5h；Then filter cake is obtained by filtration, then by filter cake washing, drying, obtains modified particle；It sweeps
Retouching Electronic Speculum can be seen that the vapour that modified particle surface is coarse compared with nanoparticle, and same mode is added to the water, and modified particle generates
It steeps slightly more compared with nanoparticle；
(3) configuration concentration is the Tris-HCl buffer solution of 10mM, and the pH to 8.5 of buffer solution is adjusted with sodium hydroxide, is obtained
Buffer solution B；It is 5:2.2 by the mass ratio of modified particle and Dopamine hydrochloride, modified particle and Dopamine hydrochloride is added to
In buffer solution B, at room temperature, 2h is stirred, curcumin ethanol solution is then added, continues to stir 2h；After reaction, mistake
It is filter, washing, dry, obtain organics modifications particle, modified particle, curcumin mass ratio be 10: 0.8；
(4) it takes 0.2g silicon methoxylation aramid fiber to be immersed in the aqueous solution containing 0.06g trimethyl silanol, vibrates 0.5h；
Fiber is taken out after reaction to disperse in aqueous solution, at 80 DEG C, to vibrate 2.5h with 1g organics modifications particle again；Reaction knot
Fiber is taken out after beam, is washed, it is dry, obtain the resistance to ultraviolet aramid fiber of flame retardant type, referred to as modification of aramid fiber.
2, the ultraviolet irradiation of clean fiber and modified fibre
The resistance to ultraviolet aramid fiber of clean aramid fiber and flame retardant type is exposed to QUV/spray type ultraviolet light accelerated weathering accelerator
In (Q-Lab company, the U.S.) carry out 168h UV irradiate (radiant illumination 1.55W/m2, test temperature be 60 DEG C), obtain through
The clean aramid fiber and modification of aramid fiber, the performance test results of 168h irradiation are as follows:
The work to break of the modification of aramid fiber of embodiment 1 is 1.32 times of clean fiber, and tensile strength is the 1.28 of clean fiber
Times, illustrate the modified work to break and tensile strength for helping to improve fiber in surface.
After 168h ultraviolet radioactive, the work to break of clean fiber, tensile strength have dropped 47.43%, 27.64%, and implement
The work to break of example 1 has dropped 15.12%, and tensile strength then has dropped 9.9%.
After routine is soaped 30 times, after 168h ultraviolet radioactive, the work to break of embodiment 1 has dropped 22.02%, tensile strength
12.29% is then had dropped, the work to break of the modification of aramid fiber of 2018104223562 embodiments 1 preparation has dropped 28.32%, draws
It stretches intensity and then has dropped 17.99%.
Using fire resistance fibre and its performance characterization method research, the modification of aramid fiber oxygen index (OI) of embodiment 1 is 36, no yin
It fires, without molten drop phenomenon, the modification of aramid fiber oxygen index (OI) of 2018104223562 embodiments 1 preparation is 31, clean aramid fiber oxygen
Index is 27；After routine is soaped 30 times, the modification of aramid fiber oxygen index (OI) of embodiment 1 is 32,2018104223562 embodiments 1
The modification of aramid fiber oxygen index (OI) of preparation is 28.
Comparative example
Using the method for embodiment 1, wherein step (3) replaces modified particle with nanoparticle, and the modification of aramid fiber of preparation is normal
After rule are soaped 30 times, the UV irradiation work to break of oxygen index (OI) 30,168h has dropped 26.88%, and tensile strength has dropped 15.79%.
Using the method for embodiment 1, wherein step (1) is added without cobalt nitrate, and the modification of aramid fiber of preparation is routinely soaped
After 30 times, the UV irradiation work to break of oxygen index (OI) 31,168h has dropped 24.58%, and tensile strength has dropped 14.02%.
Using the method for embodiment 1, wherein step (3) is added without curcumin, and the modification of aramid fiber of preparation is routinely soaped
After 30 times, the UV irradiation work to break of oxygen index (OI) 30,168h has dropped 27.36%, and tensile strength has dropped 16.89%.
Using the method for embodiment 1, wherein step (4) is added without trimethyl silanol, and the modification of aramid fiber oxygen of preparation refers to
Number 34, after routinely soaping 30 times, oxygen index (OI) 31.
Using the method for 2018104223562 embodiments 1, wherein existing phosphate flame retardant is added in step (7), preparation
Modification of aramid fiber oxygen index (OI) 32, after routinely soaping 30 times, oxygen index (OI) 28；If using additive flame retardant (such as phosphorus nitrogen
Class), effect is worse.
Modification of aramid fiber is as composite material, and combustion mechanism is complicated, there are many process influence factor, from modified particle and virtue
The effect of synthetic fibre fiber interface and modified particle nature combination element synergistic effect, which look like, improves the effective of flame retardant property
Method, for hot property and electrical property, it is also necessary to further research；The present invention on the basis of seminar's previous work, in addition to
It solves the problems, such as the deficiencies of aramid fiber is low poor with ultra-violet resistance there are surface-active, mainly improves aramid fiber flame retardant property, from
And aramid fiber can be made as the Typical Representative of high-performance organic fibre, aerospace, security protection, electronic information,
It plays an important role in the fields such as sports goods, tyre framework.
Claims (10)
1. a kind of resistance to ultraviolet aramid fiber of flame retardant type, which is characterized in that the preparation method of the resistance to ultraviolet aramid fiber of flame retardant type
Include the following steps:
(1) cerium salt and inorganic base are dissolved in water, stir 20~45min, hydrogen peroxide is then added, obtains suspension, adjusted
10~20h is reacted after the pH to 10~14 of suspension at 20 DEG C~50 DEG C, using washing, filtering, it is dry after, 500~
1~3h is calcined at 800 DEG C, obtains nano-cerium oxide；The nano-cerium oxide, boron source and nitrogenous compound are dispersed in by ethyl alcohol
In the mixed solution of water composition, 0.5~1.5h is stirred by ultrasonic, it is water-soluble to be then redispersed in cobalt nitrate after rotating, drying
In liquid, 0.5~1h is stirred by ultrasonic, using rotating, be dried to obtain solids；The solids under nitrogen source gas atmosphere, in
13~15h is calcined at 850 DEG C~950 DEG C, is then crushed and is obtained nanoparticle；
(2) nanoparticle is added in hydrogen peroxide solution, 0.5~1h of magnetic agitation, adds sulfuric acid solution, continue magnetic agitation
0.5h；Then filter cake is obtained by filtration, then by filter cake washing, drying, obtains modified particle；
(3) modified particle and Dopamine hydrochloride are added in the buffer that pH is 8.3~8.8,2~3h is stirred at room temperature；
Then curcumin ethanol solution is added, continues 1~2h of stirring；Then it is filtered, washed, dries, obtain organics modifications grain
Son；
(4) silicon methoxylation aramid fiber is immersed in the aqueous solution containing trimethyl silanol, vibrates 0.5~1h；Then it soaks
Enter in the aqueous solution containing organics modifications particle, 2~3h of oscillating reactions at 70 DEG C~80 DEG C；After reaction by washing
It washs, dry, obtain the resistance to ultraviolet aramid fiber of flame retardant type.
2. the resistance to ultraviolet aramid fiber of flame retardant type according to claim 1, it is characterised in that: the aramid fiber is p-aramid fiber
Fiber, meta-aramid fibers.
3. the resistance to ultraviolet aramid fiber of flame retardant type according to claim 1, it is characterised in that: the inorganic base be sodium hydroxide or
Person's potassium hydroxide；The cerium salt is one of cerous nitrate, cerium chloride or their any combination；The boron source be boric acid,
One of metaboric acid；The nitrogenous compound is one of urea, three chlorocyanamides, ammonium bromide.
4. the resistance to ultraviolet aramid fiber of flame retardant type according to claim 1, it is characterised in that: nano-cerium oxide, boron source, nitrogen
Close object, the mass ratio of cobalt nitrate is 100: (30~50): (60~120): (10~13).
5. the resistance to ultraviolet aramid fiber of flame retardant type according to claim 1, it is characterised in that: the buffer be Tris-HCl,
One of disodium hydrogen phosphate-phosphate sodium dihydrogen buffer solution.
6. the resistance to ultraviolet aramid fiber of flame retardant type according to claim 1, it is characterised in that: nanoparticle, hydrogen peroxide solution, sulphur
The mass ratio of acid solution is 100: (60~70): (5~7).
7. the resistance to ultraviolet aramid fiber of flame retardant type according to claim 1, it is characterised in that: modified particle, Dopamine hydrochloride, ginger
The mass ratio of flavine is 100: (30~50): (8~12).
8. the resistance to ultraviolet aramid fiber of flame retardant type according to claim 1, it is characterised in that: silicon methoxylation aramid fiber has
Machine object modified particle, trimethyl silanol mass ratio be 1: (2~9): (0.3~0.35).
9. the resistance to ultraviolet aramid fiber of flame retardant type according to claim 1, it is characterised in that: the mass ratio of cerium salt and inorganic base is
100: (20~50).
10. the resistance to ultraviolet aramid fiber of flame retardant type according to claim 1, it is characterised in that: the nitrogen source gas is nitrogen, ammonia
One of gas.
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| WO2020124396A1 (en) * | 2018-12-18 | 2020-06-25 | 南通纺织丝绸产业技术研究院 | Flame-retardant ultraviolet-resistant aramid fiber |
| CN111764171A (en) * | 2020-06-28 | 2020-10-13 | 浙江恒澜科技有限公司 | Phosphorus-boron compound after-finishing anti-dripping polyester fabric based on polydopamine surface modification and preparation method thereof |
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