CN101851856A - Method for preventing ultraviolet ageing of Vectran fibers - Google Patents

Method for preventing ultraviolet ageing of Vectran fibers Download PDF

Info

Publication number
CN101851856A
CN101851856A CN 201010204189 CN201010204189A CN101851856A CN 101851856 A CN101851856 A CN 101851856A CN 201010204189 CN201010204189 CN 201010204189 CN 201010204189 A CN201010204189 A CN 201010204189A CN 101851856 A CN101851856 A CN 101851856A
Authority
CN
China
Prior art keywords
vectran
organic
solution
ultraviolet ageing
hydrosol
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN 201010204189
Other languages
Chinese (zh)
Inventor
刘宇艳
刘宇婷
谭惠丰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Harbin Institute of Technology
Original Assignee
Harbin Institute of Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Harbin Institute of Technology filed Critical Harbin Institute of Technology
Priority to CN 201010204189 priority Critical patent/CN101851856A/en
Publication of CN101851856A publication Critical patent/CN101851856A/en
Pending legal-status Critical Current

Links

Abstract

The invention discloses a method for preventing ultraviolet ageing of Vectran fibers, which relates to a method for preventing ultraviolet ageing of coated fibers. The invention solves the problem of poor effect of preventing ultraviolet ageing of the existing Vectran fibers when a protective layer of an inorganic ultraviolet reflection agent or an organic ultraviolet absorbent is used independently. The method of the invention comprises the following steps: (1) preparing TiO2 hydrosol by a sol-gel method; (2) mixing the TiO2 hydrosol in the step (1) with organic solution of the organic absorbent to obtain a polymer paint; and (3) utilizing ultrasound effect to soak the polymer paint on the Vectran fibers, then airing the processed Vectran fibers and drying the Vectran fibers. The method has simple process and simple and easy operation and makes the Vectran fibers have protection functions of both ultraviolet reflection and ultraviolet absorption. The Vectran fibers obtained by the method are applied to a skin material of a high-altitude airship.

Description

A kind of method of preventing ultraviolet ageing of Vectran fibers
Technical field
The present invention relates to a kind of method of anti-ultraviolet ageing of coated fiber.
Background technology
The Vectran fiber is the thermotropic liquid crystal high-performance fiber that newly-developed gets up, has high strength, high-modulus, anti-creep, moisture-proof heat, abrasion performance, acid and alkali-resistance, and extremely low premium properties such as hydroscopicity, the absorbent properties that also have unexistent vibration dampening characteristic of other high-performance fibers and impact simultaneously, the impact property that fiber and fabric are resisted the sharp edge device is good especially, can be applied in the skin material of HAA.But, HAA (being called stratospheric airship again) is to fly more than 20km, be lighter than air and can stay empty unmanned airship for a long time, flight track is in stratosphere, stratospheric environmental condition is very harsh, and the anti-ultraviolet ageing ability of Vectran fiber, stratospheric strong ultra-violet radiation condition can make fiber aging, and performance reduces.
Mainly consider for the ultraviolet protection of macromolecular material in recent years from two aspects, the one, seek organic uv absorbers, be used for after-finishing of textile products, its effect is caused polymer light degradation of ultraviolet light and the photo-crosslinking that prevents to be present in sunlight and the various artificial light source.But organic matter absorbs ultraviolet being limited in scope, and the scope of using is narrower, and fastness is bad.Another utilizes inorganic ultraviolet reflection agent exactly, and inorganic oxide uvioresistant compound has certain advantage than organic uv absorbers: wider range of nontoxic, non-stimulated, shielding ultraviolet rays etc., and as nano zine oxide, titanium oxide, silica etc.Also sol-gel technique has been incorporated at present and has improved in the uvioresistant performance of material, had the TiO of ultraviolet screener effect by interpolation 2Wait the ultraviolet protection performance that improves material with ZnO, sol-gel process can be hydrolyzed on molecular level and forms homogeneous colloidal sol by predecessor, directly handle material with it, dry back can form oxide functional film firm, transparent, porous at material surface, when these materials are made nano-powder, particle size and optical wavelength quite or more hour, small-size effect causes the light shield effect significantly to strengthen.Prepare uvioresistant finishing agent as amino silicon breast softener of usefulness such as Yu Aiping and nano zine oxide, be used for having on the COTTON FABRIC tangible uvioresistant effect.
But, owing to contain the wave-length coverage difference that the absorbing band of protective coating in the following scope of 400nm of organic or inorganic ultraviolet absorber comprises separately, when using the overcoat of inorganic ultraviolet reflectance agent or organic uv absorbers separately, the anti-ultraviolet ageing weak effect of fiber.
Summary of the invention
The objective of the invention is when solving the existing overcoat that uses inorganic ultraviolet reflectance agent or organic uv absorbers separately, the problem of the anti-ultraviolet ageing weak effect of Vectran fiber the invention provides a kind of method of preventing ultraviolet ageing of Vectran fibers.
The method of a kind of preventing ultraviolet ageing of Vectran fibers of the present invention realizes by following steps: one, adopting sol-gel process to prepare Ti element molar concentration is the TiO of 0.25~0.8mol/L 2The hydrosol; Two, the TiO that obtains to step 1 2Add the organic solution of organic absorbent in the hydrosol, stir 30~50min, get polymer coating, wherein organic absorbent is salicylate class, benzophenone, benzotriazole, replacement triazines or group-substituted acrylonitrile, TiO 2The volume ratio of the organic solution of the hydrosol and organic absorbent is 0.2~0.7: 1, and the mass concentration of organic absorbent is 0.1%~10% in the organic solution of organic absorbent; Three, in the polymer coating that Vectran fiber immersion step 2 is obtained, then polymer coating is applied ultrasonic, behind sonic oscillation 20~30min the Vectran fiber is taken out, after room temperature is dried then, the Vectran fiber is put to 70~85 ℃ of baking ovens again, heat preservation and dryness 20~30min promptly forms anti-ultraviolet ageing functional layer at the Vectran fiber surface, finishes the method for preventing ultraviolet ageing of Vectran fibers.
TiO in the step 1 of the present invention 2The preparation method of the hydrosol is: the mixed that with butyl titanate and glacial acetic acid is 1: 4 in molar ratio, get mixed solution behind magnetic agitation 30~60min, again mixed solution is added in the hydrochloric acid solution of 0.05mol/L, after the room temperature lower magnetic force stirs 30~60min, place 50~60 ℃ of water-bath magnetic agitation 30~50min again, naturally cooling then, ageing at room temperature got TiO in 7~10 days again 2The hydrosol; Wherein the ratio of butyl titanate molar weight and hydrochloric acid solution volume is 1mol: 2~4L.
TiO in the step 1 of the present invention 2The preparation method of the hydrosol can also for: with tetraisopropyl titanate (Ti (OC 3H 7) 4) with ethanol be 1: 4 mixed by volume, behind magnetic agitation 30~60min mixed solution, again mixed solution is added in the hydrochloric acid solution of 0.05mol/L, at room temperature stir 20~28h then, again under the room temperature ageing 7~10 days TiO 2The hydrosol; Wherein the volume ratio of tetraisopropyl titanate and hydrochloric acid solution is 5~6: 1.
Step 1 of the present invention is the TiO of 0.25~0.8mol/L as long as adopt sol-gel process to prepare Ti element molar concentration 2The hydrosol gets final product, and being not limited to above-mentioned cited adopt respectively butyl titanate and tetraisopropyl titanate is the sol-gel process of raw material.
Organic absorbent is 2 hydroxybenzoic acid-4-(1 in the step 2 of the present invention, the 1-dimethyl ethyl) phenylester (TBS), Octabenzone (UV531), 2-(2 '-hydroxyl-3 '-tert-butyl group-5 '-aminomethyl phenyl)-5-chlorinated benzotriazole (UV326), 2-(2-hydroxyl-3,5-two fourth uncles base phenyl)-5-chlorinated benzotriazole (UV327), 2,4,6-three (2 ' hydroxyl-4 '-n-butoxy phenyl) 1,3,5-triazine (triazine-5), 1,1 diphenyl-2-itrile group ethyl acrylate (N-35) or (1-(4-hydroxy phenyl-2 itrile group methyl acrylate.
The present invention is with TiO 2The organic solution of the hydrosol and organic absorbent is mixed, with TiO 2Fully be dispersed in the organic solution of organic absorbent, in nanometer scale with TiO 2Fully mix with organic absorbent, utilize then and ultrasonic polymer coating is soaked into the fiber surface to Vectran, ultrasonic mainly is by reducing the viscosity and the surface tension of dipping system, and the high pressure that utilizes ultrasonic cavitation to produce forces maceration extract infiltration Vectran fiber, increases the wettability to the Vectran fiber.To be impregnated with the Vectran fiber drying of polymer coating at last, on the Vectran fiber surface, form the coating that combines firm ageing resistance by ultraviolet light with the Vectran fiber, improve the intensity of Vectran fiber simultaneously.
The method of preventing ultraviolet ageing of Vectran fibers of the present invention has realized inorganic ultraviolet reflectance agent and organic uv absorbers in conjunction with coating at the Vectran fiber surface, make the Vectran fiber possess the ultraviolet protection function of ultraviolet reflectance and UV absorption simultaneously, make the ultraviolet ageing overcoat have good protective action the ultraviolet light in the following scope of 400nm.
Method technology of the present invention is simple, operates simple and easyly, and the protection effect of the functional layer of the anti-ultraviolet ageing that forms on the Vectran fiber surface is good.The monofilament tensile strength of handling the Vectran fiber that obtains through the method for present embodiment is 4.1~4.3GPa, does not prevent the intensity (3.8GPa) of the Vectran fiber of ultraviolet ageing function greater than the surface.The filament strength of Vectran fiber behind ultraviolet irradiation 50h with ultraviolet protection function that adopts method of the present invention to prepare still reaches 3.7GPa, the filament strength of Vectran fiber behind ultraviolet irradiation 50h of handling without the present invention is 2.6GPa, the present invention forms anti-ultraviolet ageing functional layer at the Vectran fiber surface can alleviate the etching that the Vectran fiber produces because of ultraviolet ageing, can stop the molecular backbone fracture, alleviate the light aging phenomenon of Vectran fiber.Wherein molecular backbone mainly is ester bond, and is as follows:
Description of drawings
Fig. 1 is AFM (AFM) surface topography map of Vectran fiber behind ultraviolet irradiation 50h that the specific embodiment one obtains; Fig. 2 is AFM (AFM) surface topography map of Vectran fiber behind ultraviolet irradiation 50h that the ultraviolet ageing function is not prevented on the surface in the specific embodiment one.
The specific embodiment
Technical solution of the present invention is not limited to the following cited specific embodiment, also comprises any combination between each specific embodiment.
The specific embodiment one: the method for present embodiment preventing ultraviolet ageing of Vectran fibers realizes by following steps: one, adopting sol-gel process to prepare Ti element molar concentration is the TiO of 0.25~0.8mol/L 2The hydrosol; Two, the TiO that obtains to step 1 2Add the organic solution of organic absorbent in the hydrosol, stir 30~50min, get polymer coating, wherein organic absorbent is salicylate class, benzophenone, benzotriazole, replacement triazines or group-substituted acrylonitrile, TiO 2The volume ratio of the organic solution of the hydrosol and organic absorbent is 0.2~0.7: 1, and the mass concentration of organic absorbent is 0.1%~10% in the organic solution of organic absorbent; Three, in the polymer coating that Vectran fiber immersion step 2 is obtained, then polymer coating is applied ultrasonic, behind sonic oscillation 20~30min the Vectran fiber is taken out, after room temperature is dried then, the Vectran fiber is put to 70~85 ℃ of baking ovens again, heat preservation and dryness 20~30min promptly forms the overcoat of preventing ultraviolet ageing at the Vectran fiber surface, finishes the method for preventing ultraviolet ageing of Vectran fibers.
The method of the preventing ultraviolet ageing of Vectran fibers of present embodiment has realized inorganic ultraviolet reflectance agent and organic uv absorbers in conjunction with coating at the Vectran fiber surface, make the Vectran fiber possess the ultraviolet protection function of ultraviolet reflectance and UV absorption simultaneously, make the ultraviolet ageing overcoat have good protective action the ultraviolet light in the following scope of 400nm.
The method technology of present embodiment is simple, operates simple and easyly, and the protection effect of the overcoat of the anti-ultraviolet ageing that forms on the Vectran fiber surface is good.
The method of present embodiment does not prevent that with the Vectran fiber and the surface behind ultraviolet irradiation 50h of above-mentioned present embodiment behind ultraviolet irradiation 50h the Vectran fiber of ultraviolet ageing function carries out AFM (AFM) surface topography respectively, respectively as depicted in figs. 1 and 2.Comparison diagram 1 and Fig. 2 as can be known, after present embodiment formed the overcoat of anti-ultraviolet ageing at the Vectran fiber surface, this overcoat can alleviate the etching that the Vectran fiber produces because of ultraviolet ageing, improved anti-ultraviolet ageing ability.
The specific embodiment two: that present embodiment and the specific embodiment one are different is TiO in the step 1 2The preparation method of the hydrosol is: the mixed that with butyl titanate and glacial acetic acid is 1: 4 in molar ratio, get mixed solution behind magnetic agitation 30~60min, again mixed solution is added in the hydrochloric acid solution of 0.05mol/L, after the room temperature lower magnetic force stirs 30~60min, place 50~60 ℃ of water-bath magnetic agitation 30~50min again, naturally cooling then, ageing at room temperature got TiO in 7~10 days again 2The hydrosol; Wherein the ratio of butyl titanate molar weight and hydrochloric acid solution volume is 1mol: 2~4L.Other step and parameter are identical with the specific embodiment one.
The TiO that present embodiment prepares 2The molar concentration of Ti element is 0.25~0.5mol/L in the hydrosol.
The specific embodiment three: what present embodiment and the specific embodiment two were different is to place 50 ℃ of water-bath magnetic agitation 30min.Other step and parameter are identical with the specific embodiment two.
The specific embodiment four: present embodiment is different with the specific embodiment two or three is that the ratio of butyl titanate molar weight and hydrochloric acid solution volume is 1mol: 3L.Other step and parameter are identical with the specific embodiment two or three.
The specific embodiment five: that present embodiment and the specific embodiment one are different is TiO in the step 1 2The preparation method of the hydrosol can also be the mixed that with tetraisopropyl titanate and ethanol is 1: 4 by volume, get mixed solution behind magnetic agitation 30~60min, again mixed solution is added in the hydrochloric acid solution of 0.05mol/L, at room temperature stir 20~28h then, ageing got TiO in 7~10 days under the room temperature again 2The hydrosol; Wherein the volume ratio of tetraisopropyl titanate and hydrochloric acid solution is 5~6: 1.Other step and parameter are identical with the specific embodiment one.
The TiO that present embodiment prepares 2The molar concentration of Ti element is 0.67mol/L in the hydrosol.
The specific embodiment six: present embodiment and the specific embodiment five are different is that the volume ratio of tetraisopropyl titanate and hydrochloric acid solution is 5.5: 1.Other step and parameter are identical with the specific embodiment five.
The specific embodiment seven: what present embodiment was different with one of specific embodiment one to six is that organic absorbent is 2 hydroxybenzoic acid-4-(1 in the step 2, the 1-dimethyl ethyl) phenylester (TBS), Octabenzone (UV531), 2-(2 '-hydroxyl-3 '-tert-butyl group-5 '-aminomethyl phenyl)-5-chlorinated benzotriazole (UV326), 2-(2-hydroxyl-3,5-two fourth uncles base phenyl)-5-chlorinated benzotriazole (UV327), 2,4,6-three (2 ' hydroxyl-4 '-n-butoxy phenyl) 1,3,5-triazine (triazine-5), 1,1 diphenyl-2-itrile group ethyl acrylate (N-35) or (1-(4-hydroxy phenyl-2 itrile group methyl acrylate.Other step and parameter are identical with one of specific embodiment one to six.
The chemical structural formula of N-35 is as follows in the present embodiment:
The specific embodiment eight: present embodiment is different with one of specific embodiment one to seven is that organic solvent in the organic solution of organic absorbent in the step 2 is ethanol, acetone, butanone, ethyl acetate, benzene, toluene, styrene or dimethyl formamide.Other step and parameter are identical with one of specific embodiment one to seven.
Present embodiment is selected correspondingly organic absorbent is had good deliquescent organic solvent and is dissolved according to selected organic absorbent.
The specific embodiment nine: present embodiment is different with one of specific embodiment one to eight is that the organic solution of organic absorbent in the step 2 is 2 hydroxybenzoic acid-4-(1, the 1-dimethyl ethyl) ethyl acetate solution of phenylester, 2 hydroxybenzoic acid-4-(1, the 1-dimethyl ethyl) butanone solution of phenylester, the ethanolic solution of Octabenzone, 2-(2 '-hydroxyl-3 '-tert-butyl group-5 '-aminomethyl phenyl)-benzole soln of 5-chlorinated benzotriazole, 2-(2-hydroxyl-3,5-two fourth uncles base phenyl)-styrene solution of 5-chlorinated benzotriazole, 2,4,6-three (2 ' hydroxyl-4 '-n-butoxy phenyl) 1,3, the dimethyl formamide solution of 5-triazine, the toluene solution of 1,1 diphenyl-2-itrile group ethyl acrylate or the 1-(ethyl acetate solution of 4-hydroxy phenyl-2 itrile group methyl acrylate.Other step and parameter are identical with one of specific embodiment one to eight.
The specific embodiment ten: that present embodiment is different with one of specific embodiment one to nine is TiO in the step 2 2The volume ratio of the organic solution of the hydrosol and organic absorbent is 0.25~0.66: 1.Other step and parameter are identical with one of specific embodiment one to nine.
The specific embodiment 11: that present embodiment is different with one of specific embodiment one to nine is TiO in the step 2 2The volume ratio of the organic solution of the hydrosol and organic absorbent is 0.5: 1.Other step and parameter are identical with one of specific embodiment one to nine.
The specific embodiment 12: present embodiment is different with one of specific embodiment one to 12 is that the mass concentration of organic absorbent is 0.1%~1.30% in the organic solution of organic absorbent in the step 2.Other step and parameter are identical with one of specific embodiment one to 12.
The specific embodiment 13: present embodiment is different with one of specific embodiment one to 12 is that the mass concentration of organic absorbent is 0.5%~1.0% in the organic solution of organic absorbent in the step 2.Other step and parameter are identical with one of specific embodiment one to 12.
The specific embodiment 14: present embodiment is different with one of specific embodiment one to 12 is that the mass concentration of organic absorbent is 0.8% in the organic solution of organic absorbent in the step 2.Other step and parameter are identical with one of specific embodiment one to 12.
The specific embodiment 15: present embodiment is different with one of specific embodiment one to 12 is that the mass concentration of organic absorbent is 2%~6% in the organic solution of organic absorbent in the step 2.Other step and parameter are identical with one of specific embodiment one to 12.
The specific embodiment 16: present embodiment is different with one of specific embodiment one to 12 is that the mass concentration of organic absorbent is 4% in the organic solution of organic absorbent in the step 2.Other step and parameter are identical with one of specific embodiment one to 12.
The specific embodiment 17: what present embodiment was different with one of specific embodiment one to 16 is the Vectran fiber to be put to 80 ℃ of baking ovens heat preservation and dryness 30min in the step 3 again.
The specific embodiment 18: the method for present embodiment preventing ultraviolet ageing of Vectran fibers realizes by following steps: one, adopting sol-gel process to prepare Ti element molar concentration is the TiO of 0.28mol/L 2The hydrosol; Two, the TiO that obtains to step 1 2Add the organic solution of organic absorbent in the hydrosol, stir 30min, polymer coating, wherein the organic solution of organic absorbent is that mass concentration is the acetone soln of 0.1%~10% benzotriazole ultraviolet absorber, TiO 2The volume ratio of the organic solution of the hydrosol and organic absorbent is 2: 8; Three, in the polymer coating that Vectran fiber immersion step 2 is obtained, then polymer coating is applied ultrasonic, behind the sonic oscillation 30min Vectran fiber is taken out, after room temperature is dried then, the Vectran fiber is put to 80 ℃ of baking ovens again, heat preservation and dryness 30min promptly forms the overcoat of preventing ultraviolet ageing at the Vectran fiber surface, finishes the method for preventing ultraviolet ageing of Vectran fibers.
TiO in the present embodiment step 1 2The preparation method of the hydrosol is: the butyl titanate of 0.01mol is mixed with the glacial acetic acid of 0.04mol, get mixed solution behind the magnetic agitation 30min, again mixed solution is added in the hydrochloric acid solution of 0.05mol/L of 30mL, after the room temperature lower magnetic force stirs 60min, place 50 ℃ of water-bath magnetic agitation 30min again, naturally cooling then, ageing at room temperature got TiO in 8 days again 2The hydrosol.
The chemical structural formula of benzotriazole ultraviolet absorber is in the present embodiment:
Wherein R is CH 3Perhaps CMe 3R is CH 3, be 2-(2 '-hydroxyl-3 '-tert-butyl group-5 '-aminomethyl phenyl)-the 5-chlorinated benzotriazole; R is CMe 3, be 2-(2-hydroxyl-3,5-two fourth uncles base phenyl)-5-chlorinated benzotriazole.The effective wavelength range of the benzotriazole ultraviolet absorber of present embodiment is 300~400nm.
TiO in the polymer coating that the present embodiment step 2 obtains 2Particle and organic absorbent fully mix in nanometer scale, by ultrasonication with the polymeric coatings homogeneous immersion to the Vectran fiber surface, finally the anti-ultraviolet ageing functional layer that forms at the Vectran fiber surface combines firmly with the Vectran fiber, and can also improve the intensity of Vectran fiber.
The specific embodiment 19: present embodiment and the specific embodiment 18 are different be the organic solution of organic absorbent in the step 2 be mass concentration be 2%~6% 2-(2 '-hydroxyl-3 '-tert-butyl group-5 '-aminomethyl phenyl)-acetone soln of 5-chlorinated benzotriazole (UV326).Other step and parameter are identical with the specific embodiment 18.
The method of the preventing ultraviolet ageing of Vectran fibers of present embodiment makes the Vectran fiber possess the ultraviolet protection function of ultraviolet reflectance and UV absorption simultaneously, makes the ultraviolet ageing overcoat have good protective action to the ultraviolet light in the following scope of 400nm.After present embodiment formed the overcoat of anti-ultraviolet ageing at the Vectran fiber surface, this overcoat can alleviate the etching that the Vectran fiber produces because of ultraviolet ageing, improved anti-ultraviolet ageing ability.
The specific embodiment 20: present embodiment and the specific embodiment 18 are different is that the organic solution of organic absorbent in the step 2 is that mass concentration is the ethyl acetate solution of 2 hydroxybenzoic acid-4-(1, the 1-dimethyl ethyl) phenylester of 2%~6%.Other step and parameter are identical with the specific embodiment 18.
The method of the preventing ultraviolet ageing of Vectran fibers of present embodiment makes the Vectran fiber possess the ultraviolet protection function of ultraviolet reflectance and UV absorption simultaneously, makes the ultraviolet ageing overcoat have good protective action to the ultraviolet light in the following scope of 400nm.After present embodiment formed the overcoat of anti-ultraviolet ageing at the Vectran fiber surface, this overcoat can alleviate the etching that the Vectran fiber produces because of ultraviolet ageing, improved anti-ultraviolet ageing ability.
The specific embodiment 21: the method for present embodiment preventing ultraviolet ageing of Vectran fibers realizes by following steps: one, adopting sol-gel process to prepare Ti element molar concentration is the TiO of 0.67mol/L 2The hydrosol; Two, the TiO that obtains to step 1 2Add the organic solution of group-substituted acrylonitrile absorbent in the hydrosol, stir 30min, polymer coating, wherein the organic solution of organic absorbent is that mass concentration is the ethyl acetate solution of 0.1%~1.3% group-substituted acrylonitrile absorbent, TiO 2The volume ratio of the organic solution of the hydrosol and organic absorbent is 4: 6; Three, in the polymer coating that Vectran fiber immersion step 2 is obtained, then polymer coating is applied ultrasonic, behind the sonic oscillation 30min Vectran fiber is taken out, after room temperature is dried then, the Vectran fiber is put to 80 ℃ of baking ovens again, heat preservation and dryness 30min promptly forms the overcoat of preventing ultraviolet ageing at the Vectran fiber surface, finishes the method for preventing ultraviolet ageing of Vectran fibers.
TiO in the present embodiment step 1 2The preparation method of the hydrosol is: add 40mLTi (OC in 280mL ethanol 3H 7) 4In mix, behind the magnetic agitation 30min mixed solution, again mixed solution is added in the hydrochloric acid solution of 0.05mol/L of 7mL, at room temperature stir 24h then, again under the room temperature ageing 8 days TiO 2The hydrosol.
The group-substituted acrylonitrile absorbent of present embodiment be (1-(and 4-hydroxy phenyl-2 itrile group methyl acrylate, its chemical structural formula is:
Its effective wavelength range is 310~320nm.
The method of the preventing ultraviolet ageing of Vectran fibers of present embodiment makes the Vectran fiber possess the ultraviolet protection function of ultraviolet reflectance and UV absorption simultaneously, makes the ultraviolet ageing overcoat have good protective action to the ultraviolet light in the following scope of 400nm.After present embodiment formed the overcoat of anti-ultraviolet ageing at the Vectran fiber surface, this overcoat can alleviate the etching that the Vectran fiber produces because of ultraviolet ageing, improved anti-ultraviolet ageing ability.

Claims (10)

1. the method for a preventing ultraviolet ageing of Vectran fibers is characterized in that the method for preventing ultraviolet ageing of Vectran fibers realizes by following steps: one, adopting sol-gel process to prepare Ti element molar concentration is the TiO of 0.25~0.8mol/L 2The hydrosol; Two, the TiO that obtains to step 1 2Add the organic solution of organic absorbent in the hydrosol, stir 30~50min, get polymer coating, wherein organic absorbent is salicylate class, benzophenone, benzotriazole, replacement triazines or group-substituted acrylonitrile, TiO 2The volume ratio of the organic solution of the hydrosol and organic absorbent is 0.2~0.7: 1, and the mass concentration of organic absorbent is 0.1%~10% in the organic solution of organic absorbent; Three, in the polymer coating that Vectran fiber immersion step 2 is obtained, then polymer coating is applied ultrasonic, behind sonic oscillation 20~30min the Vectran fiber is taken out, after room temperature is dried then, the Vectran fiber is put to 70~85 ℃ of baking ovens again, heat preservation and dryness 20~30min promptly forms anti-ultraviolet ageing functional layer at the Vectran fiber surface, finishes the method for preventing ultraviolet ageing of Vectran fibers.
2. the method for a kind of preventing ultraviolet ageing of Vectran fibers according to claim 1 is characterized in that TiO in the step 1 2The preparation method of the hydrosol is: the mixed that with butyl titanate and glacial acetic acid is 1: 4 in molar ratio, get mixed solution behind magnetic agitation 30~60min, again mixed solution is added in the hydrochloric acid solution of 0.05mol/L, after the room temperature lower magnetic force stirs 30~60min, place 50~60 ℃ of water-bath magnetic agitation 30~50min again, naturally cooling then, ageing at room temperature got TiO in 7~10 days again 2The hydrosol; Wherein the ratio of butyl titanate molar weight and hydrochloric acid solution volume is 1mol: 2~4mL.
3. the method for a kind of preventing ultraviolet ageing of Vectran fibers according to claim 1 is characterized in that TiO in the step 1 2The preparation method of the hydrosol can also be the mixed that with tetraisopropyl titanate and ethanol is 1: 4 by volume, get mixed solution behind magnetic agitation 30~60min, again mixed solution is added in the hydrochloric acid solution of 0.05mol/L, at room temperature stir 20~28h then, ageing got TiO in 7~10 days under the room temperature again 2The hydrosol; Wherein the volume ratio of tetraisopropyl titanate and hydrochloric acid solution is 5~6: 1.
4. according to claim 1, the method of 2 or 3 described a kind of preventing ultraviolet ageing of Vectran fibers, it is characterized in that organic absorbent is 2 hydroxybenzoic acid-4-(1 in the step 2, the 1-dimethyl ethyl) phenylester, Octabenzone, 2-(2 '-hydroxyl-3 '-tert-butyl group-5 '-aminomethyl phenyl)-the 5-chlorinated benzotriazole, 2-(2-hydroxyl-3,5-two fourth uncles base phenyl)-the 5-chlorinated benzotriazole, 2,4,6-three (2 ' hydroxyl-4 '-n-butoxy phenyl) 1,3, the 5-triazine, 1,1 diphenyl-2-itrile group ethyl acrylate or (1-(4-hydroxy phenyl-2 itrile group methyl acrylate.
5. the method for a kind of preventing ultraviolet ageing of Vectran fibers according to claim 4 is characterized in that the organic solvent in the organic solution of organic absorbent in the step 2 is ethanol, acetone, butanone, ethyl acetate, benzene, toluene, styrene or dimethyl formamide.
6. according to claim 1,2, the method of 3 or 5 described a kind of preventing ultraviolet ageing of Vectran fibers, the organic solution that it is characterized in that organic absorbent in the step 2 is 2 hydroxybenzoic acid-4-(1, the 1-dimethyl ethyl) ethyl acetate solution of phenylester, 2 hydroxybenzoic acid-4-(1, the 1-dimethyl ethyl) butanone solution of phenylester, the ethanolic solution of Octabenzone, 2-(2 '-hydroxyl-3 '-tert-butyl group-5 '-aminomethyl phenyl)-benzole soln of 5-chlorinated benzotriazole, 2-(2-hydroxyl-3,5-two fourth uncles base phenyl)-styrene solution of 5-chlorinated benzotriazole, 2,4,6-three (2 ' hydroxyl-4 '-n-butoxy phenyl) 1,3, the dimethyl formamide solution of 5-triazine, the toluene solution of 1,1 diphenyl-2-itrile group ethyl acrylate or the (1-(acetone soln of 4-hydroxy phenyl-2 itrile group methyl acrylate.
7. the method for a kind of preventing ultraviolet ageing of Vectran fibers according to claim 6 is characterized in that TiO in the step 2 2The volume ratio of the organic solution of the hydrosol and organic absorbent is 0.25~0.66: 1.
8. according to the method for claim 1,2,3,5 or 7 described a kind of preventing ultraviolet ageing of Vectran fibers, it is characterized in that the mass concentration of organic absorbent in the organic solution of organic absorbent in the step 2 is 0.1%~1.30%.
9. according to the method for claim 1,2,3,5 or 7 described a kind of preventing ultraviolet ageing of Vectran fibers, it is characterized in that the mass concentration of organic absorbent in the organic solution of organic absorbent in the step 2 is 2%~6%.
10. the method for a kind of preventing ultraviolet ageing of Vectran fibers according to claim 8 is characterized in that the Vectran fiber being put in the step 3 to 80 ℃ of baking ovens heat preservation and dryness 30min again.
CN 201010204189 2010-06-21 2010-06-21 Method for preventing ultraviolet ageing of Vectran fibers Pending CN101851856A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201010204189 CN101851856A (en) 2010-06-21 2010-06-21 Method for preventing ultraviolet ageing of Vectran fibers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201010204189 CN101851856A (en) 2010-06-21 2010-06-21 Method for preventing ultraviolet ageing of Vectran fibers

Publications (1)

Publication Number Publication Date
CN101851856A true CN101851856A (en) 2010-10-06

Family

ID=42803526

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201010204189 Pending CN101851856A (en) 2010-06-21 2010-06-21 Method for preventing ultraviolet ageing of Vectran fibers

Country Status (1)

Country Link
CN (1) CN101851856A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104818611A (en) * 2015-05-07 2015-08-05 哈尔滨工业大学 Method of improving anti-ultraviolet performance of M5 fiber with tubular titanium dioxide
CN107142717A (en) * 2017-06-28 2017-09-08 南通大学 A kind of production method of the anti-aging geotextiles of the hydrosol
CN108677519A (en) * 2018-06-12 2018-10-19 吴秀华 A kind of preparation facilities and preparation method thereof of uvioresistant BCF expanded wires

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1614133A (en) * 2004-09-01 2005-05-11 东华大学 Collosol-gel ultraviolet-proof finishing liquid and its use for preparing ultraviolet-proof textile
CN101302277A (en) * 2008-06-16 2008-11-12 宁波润禾化学工业有限公司 Functional fabric waterproof stiffener and preparation technology thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1614133A (en) * 2004-09-01 2005-05-11 东华大学 Collosol-gel ultraviolet-proof finishing liquid and its use for preparing ultraviolet-proof textile
CN101302277A (en) * 2008-06-16 2008-11-12 宁波润禾化学工业有限公司 Functional fabric waterproof stiffener and preparation technology thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104818611A (en) * 2015-05-07 2015-08-05 哈尔滨工业大学 Method of improving anti-ultraviolet performance of M5 fiber with tubular titanium dioxide
CN104818611B (en) * 2015-05-07 2016-10-19 哈尔滨工业大学 A kind of method that tubulose titanium dioxide improves M5 fiber uvioresistant performance
CN107142717A (en) * 2017-06-28 2017-09-08 南通大学 A kind of production method of the anti-aging geotextiles of the hydrosol
CN108677519A (en) * 2018-06-12 2018-10-19 吴秀华 A kind of preparation facilities and preparation method thereof of uvioresistant BCF expanded wires

Similar Documents

Publication Publication Date Title
CN103572583B (en) Aramid fiber coated with inorganic nanoparticles on surface and preparation method thereof
Petersen et al. Preliminary characterization of glass fiber sizing
CN101851856A (en) Method for preventing ultraviolet ageing of Vectran fibers
JP2004125822A (en) Film-forming matter
CN106046883A (en) Light absorption reflective paint and film adopting same
JP6449735B2 (en) Heat ray reflective material and window, and method for producing heat ray reflective material
CN104404772A (en) Surface-modified aramid fiber and preparation method thereof
CN101629033B (en) UV resistant agent used for acrylic coating and preparation method and application thereof
Dong et al. Synthesis of carbon quantum dots to fabricate ultraviolet‐shielding poly (vinylidene fluoride) films
El Nahrawy et al. Copper lithium silicate/ZrO2 nanoparticles-coated kevlar for improving UV-Vis absorbance/protection properties
CN109517355B (en) Ultraviolet shielding composite material based on modified melanin nanoparticles and preparation method thereof
KR20180039583A (en) Laminate film, optical member, and image display device
KR101222936B1 (en) Water-soluble Coating Agent For Selective Blocking Infrared and Ultraviolet Rays Including Aminosilane And Coating Film Using The Same
JP4868636B2 (en) Structure comprising a photocatalyst
JP6758809B2 (en) A method for producing a porous gel-containing liquid, a method for producing a porous gel-containing liquid, a method for producing a high void layer, a method for producing a high porosity porous body, and a method for producing a laminated film roll.
CN102936432A (en) Infrared shielding composition and preparation method and application thereof
KR20180048453A (en) Laminated optical film, method for producing laminated optical film, optical member, and image display device
JP4509311B2 (en) Laminated glass
Textor et al. Functionalization of Textiles With Nanotechnology
DE102009034187A1 (en) Wash-stable photocatalytic textile coating, useful to coat e.g. woven fabrics, and in material that is useful as photoactive filter to remove e.g. contaminants in air, where the coating is formed from anatase-containing nanosol and polymer
CN113293614A (en) PBO fiber sizing agent with ultraviolet aging resistance, PBO fiber and preparation method thereof
TEXTOR et al. Inorganic-organic hybrid polymers based on silanes for coating textile substrates
KR20200037564A (en) Heat blocking composite for automobile interior and manufacturing method thereof
Wang et al. Preparation and performance of fluorescent transparent bamboo
CN104353370B (en) A kind of preparation method of hydrophilic polyfluortetraethylemicroporous composite micro porous film

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Open date: 20101006