CN103911877B - A kind of colour-changing agent for weaving face fabric - Google Patents
A kind of colour-changing agent for weaving face fabric Download PDFInfo
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Abstract
The present invention relates to a kind of colour-changing agent for weaving face fabric, particularly a kind ofly comprise colour-changing agent for weaving face fabric of silicon-titanium sol, light stabilizer, antioxidant and chromotropic dye and preparation method thereof.The described colour-changing agent for weaving face fabric of the present invention has reversible thermochromic properties, and fastness is strong, light and heat excellent in stability, has good prospects for commercial application and potentiality.
Description
Technical field
The present invention relates to a kind of colour-changing agent for weaving face fabric, particularly a kind ofly comprise colour-changing agent for weaving face fabric of silicon-titanium sol, light stabilizer, antioxidant and chromotropic dye and preparation method thereof, belong to functional dye field.
Background technology
Along with the development of science and technology, the raising of people's living standard, the aesthetic conceptions of people also there occurs change, all show be different from traditional demand in various aspects such as clothing, food, shelter, row.The appearance of Color-Changing Fabric meets the demand of people's personalization, it is by means of modern high technology, makes the color of textiles or flower pattern along with the change of illumination, the change of temperature, dry wet change and show and become indistinct " dynamically " effect from " static state " of routine.Change due to this color is that fabric is subject to extraneous stimulation and " automatically " variable color, therefore, is referred to as intelligent color-changing textiles.The manufacturing technology of off-color material mainly comprises chameleon fibre and chromotropic dye two kinds.The manufacturing technology of chameleon fibre is made, and fabric has good hand touch, washing resistance is good, and the feature such as color changeable effect is more lasting.Different by production technology, the manufacturing technology of chameleon fibre mainly comprises solution spinning, melt spinning method, finishing method and graft polymerization method.
Under the effect of light, heat and other physics or chemical factor, the dyestuff reversibly changing color is called chromotropic dye.Light (heat) causes that off-color material is applied to the dyeing of textiles, stamp just studies have reported that in the seventies in last century, but the photostability causing chromotropic dye due to light (heat) is generally poor, and be subject to the such environmental effects such as temperature, illumination, pH value and oxygen, molecular structure is fissioned, lose reversible shock color change ability, weather fastness and fatigue durability are declined; And the off-color material needed for textiles needs to have obvious change color, and price, so make slow progress always.The application on the textile of the optimization of several years up to date variable color material properties and microcapsules technology, the development making Color-Changing Fabric is very fast, defines from fiber, yarn to the various variable color textile materials of fabric.Microcapsules technology can make up the shortcoming that light (heat) causes chromotropic dye, it uses wall material that chromotropic dye is made microcapsules, cyst wall plays the effect of the chemical environments such as isolation acid, alkali, impurity air, chemical reagent, improve fatigue durability and the stability of chromotropic dye, and then improve the service life of textiles.
CN1061252A discloses a kind of colouring method, and with in pbz polymer compound, heat or the reversible color particulate of light reversible color material are to cellulose dyeing, and wherein reversible color particulate is the macromolecular compound microcapsules comprising thermochromatic material.
CN101225296A discloses a kind of photochromic micro-encapsulation, and capsule is polymerized by melamine resin prepolymer, wherein comprises by photochromic dyes.
(the Preparationofphotosensitivecolor-producingmicrocapsulesu tilizinginsitupolymerizationmethod such as K.Sawada, DyesandPigments, 2005,65,45-49) disclose a kind of photochromic micro-encapsulation, capsule is formed by melamine and oxymethylene polymerization, wherein comprises by photochromic dyes.
(preparation of the black TF-BL reversible thermochromic compound of temperature-sensitive and the Research of Microencapsulation such as Yang Hua, printing and dyeing assistant, 2005,22nd volume the 1st phase, 24-27) disclose a kind of thermic thermochromism microcapsules, capsule is formed by gelatin-gum arabic-oxymethylene polymerization, wherein comprises thermochromic dye.
Although above-mentioned disclosed prior art all has respective advantage, need formaldehyde monomers time prepared by a lot of high molecule microcapsule, and preparation method is complicated, and the system of chromotropic dye is still very limited.
Thus, for prior art defect, the present invention is intended to the colour-changing agent for weaving face fabric developing a kind of high stability, for the preparation of the weaving face fabric of variable color, to meet daily life needs.
Summary of the invention
In order to address the aforementioned drawbacks, present inventor has performed and concentrate on studies, after paying a large amount of creative work, thus complete the present invention.
The present invention relates to a kind of colour-changing agent for weaving face fabric, particularly a kind of colour-changing agent for weaving face fabric comprising silicon-titanium sol, light stabilizer, antioxidant and chromotropic dye, and find surprisingly, the described colour-changing agent for weaving face fabric of the present invention has reversible thermochromic properties, and fastness is strong, light and heat excellent in stability, has good prospects for commercial application and potentiality.
In addition, present invention also offers this preparation method for the colour-changing agent of weaving face fabric.
Specifically, first aspect, the invention provides a kind of colour-changing agent for weaving face fabric, and the described colour-changing agent for weaving face fabric comprises silicon-titanium sol, light stabilizer, antioxidant and chromotropic dye.
In the present invention, unless otherwise defined, from start to finish, all relate to " comprising " that component forms have open " comprising ", " comprising " and closed " by ... form " and their all implications of saying of equal value.
Of the present invention described in the colour-changing agent of weaving face fabric, described silicon-titanium sol is formed with mol ratio 1:0.2-5 copolymerization by siloxanyl monomers and titanoxane monomer, and such as both mol ratios can be 1:0.2,1:0.4,1:0.6,1:0.8,1:1,1:1.5,1:2,1:2.5,1:3,1:3.5,1:4,1:4.5 or 1:5.
Of the present invention described in the colour-changing agent of weaving face fabric, the structural formula forming the siloxanyl monomers of described silicon-titanium sol is as follows:
Of the present invention described in the colour-changing agent of weaving face fabric, the structural formula forming the described titanoxane monomer of described silicon-titanium sol is as follows:
Of the present invention described in the colour-changing agent of weaving face fabric, described light stabilizer is selected from 2,6-DI-tert-butylphenol compounds, 2,4,6-tri-butyl-phenol, 2,6-toluene di-tert-butyl phenols, 4-methylol-2,6-DI-tert-butylphenol compounds, 2, any one or mixture multiple arbitrarily in 5-di-tert-butyl hydroquinone, 2,2-methylene-bis-(4-ethyl-6-tert-butyl phenol), 4,4-butylidenes-bis-(3 methy 6 tert butyl phenol).
Of the present invention described in the colour-changing agent of weaving face fabric, described antioxidant is selected from (2, 2, 6, 6-tetramethyl-4-N-piperidyl) sebacate, two (1, 2, 2, 6, 6-pentamethyl-4-piperidyl) sebacate, dimethyl succinate, 6-(1, 1, 3, 3-tetramethyl butyl) amino-1, 3, 5-triazine-2, 4-bis-base and (2, 2, 6, 6-tetramethyl-4-piperidyl) imino group-hexa-methylene-(2, 2, 6, 6-tetramethyl-4-piperidyl imino group) copolymer, 2-(3, 5-di-t-butyl-4-hydroxybenzyl)-2-n-butylmalonic acid two (1, 2, 2, 6, 6-pentamethyl-4-piperidyl) any one or mixture multiple arbitrarily in ester.
Of the present invention described in the colour-changing agent of weaving face fabric, described chromotropic dye is by formula (I) compound and form by electron compound:
Wherein,
R
1-R
3be selected from hydrogen, C independently of one another
1-C
8alkyl or C
1-C
8alkoxyl.
Of the present invention described in the colour-changing agent of weaving face fabric, C
1-C
8alkyl refers to the branched-chain or straight-chain alkyl with 1-8 carbon atom, as C
1alkyl, C
2alkyl, C
3alkyl, C
4alkyl, C
5alkyl, C
6alkyl, C
7alkyl, C
8alkyl, such as, can be as methyl, ethyl, propyl group, normal-butyl, isobutyl group, the tert-butyl group, sec-butyl, n-pentyl, n-hexyl, n-heptyl, n-octyl etc.; C
1-C
8alkoxyl instructs C as escribed above
1-C
8group after alkyl is connected with O.
Described is any one or mixture multiple arbitrarily in phenol, tert-butyl catechol, parachlorophenol, 2,2-bis--(4'-hydroxy phenyl) propane, gallic acid dodecane ester, n-butyl p-hydroxybenzoate by electron compound.
Wherein, described formula (I) compound and be 1:50-100 by the mol ratio between electron compound, such as, can be 1:50,1:60,1:70,1:80,1:90 or 1:100.
Of the present invention described in the colour-changing agent of weaving face fabric, described light stabilizer is 0.3-1:100 with the mol ratio by electron compound, such as can be 0.3:100: 0.5:100,0.7:100,0.9:100 or 1:100.
Of the present invention described in the colour-changing agent of weaving face fabric, antioxidant is 0.5-5:100 with the mol ratio by electron compound, such as, can be 0.5:100,0.8:100,1:100,1.5:100,2:100,2.5:100,3:100,3.5:100,4:100,4.5:100 or 5:100.
Of the present invention described in the colour-changing agent of weaving face fabric, in described silicon-titanium sol, mole sum of silicon and titanium and the mol ratio of formula (I) compound are 5-40:1, such as, can be 5:1,10:1,15:1,20:1,25:1,30:1,35:1 or 40:1.
Second aspect, present invention also offers the described preparation method for the colour-changing agent of weaving face fabric, it comprises the steps:
(1) by light stabilizer, antioxidant, formula (I) compound be dissolved according to the above ratio in absolute ethyl alcohol by electron compound, the concentration of formula (I) compound is made to be 0.001-0.1mol/L;
(2) at 20-30 DEG C, siloxanyl monomers is mixed with titanoxane monomer to be dissolved in mass percentage concentration be in the ethanol of 95%, stir, form silicon-titanium sol;
(3) in the water bath with thermostatic control of 15-35 DEG C, under the electric stirring of 200-800rpm rotating speed, the solution of step (1) is added drop-wise in the silicon-titanium sol of step (2), after dropwising, continues stirring 10 minutes to 5h, then aqueous hydrochloric acid solution is dripped, make the pH value of system be 5.5-6.5, continue to stir 1-20h, stop stirring, ageing 1-5h in this water bath with thermostatic control, the colour-changing agent that then centrifugal, washing, drying obtain for weaving face fabric.
In the described preparation method for the colour-changing agent of weaving face fabric of the present invention, in described step (1), make the concentration of formula (I) compound can be 0.001-0.1mol/L, such as, can be 0.001mol/L, 0.005mol/L, 0.01mol/L, 0.03mol/L, 0.05mol/L, 0.07mol/L, 0.09mol/L or 0.1mol/L.
In the described preparation method for the colour-changing agent of weaving face fabric of the present invention, in described step (2), the amount of described siloxanyl monomers and isobutyric acid-3-tri-ethoxy silylpropyl ester can make the silicon content in silicon-titanium sol be 0.01-1mol/L, such as, can be 0.01mol/L, 0.03mol/L, 0.05mol/L, 0.07mol/L, 0.09mol/L, 0.1mol/L, 0.2mol/L, 0.3mol/L, 0.4mol/L, 0.5mol/L, 0.6mol/L, 0.7mol/L, 0.8mol/L, 0.9mol/L or 1mol/L.
In the described preparation method for the colour-changing agent of weaving face fabric of the present invention, in described step (3), aqueous hydrochloric acid solution can be 0.005-0.05mol/L, such as, can be 0.005mol/L, 0.01mol/L, 0.02mol/L, 0.03mol/L, 0.04mol/L or 0.05mol/L;
In described step (3), the solution of described step (1) is added drop-wise in the silicon-titanium sol of step (2), silicon after dripping in gained system and mole sum of titanium and formula (I) compound mole ratio can be 5-40:1, such as can be 5:1,10:1,15:1,20:1,25:1,30:1,35:1 or 40:1.
In the described preparation method for the colour-changing agent of weaving face fabric of the present invention, described formula (I) compound can business be buied, or is prepared by condensation reaction by formula (II) and formula (III) compound:
Wherein, R
1, R
2, R
3, R
4definition as above.
The concrete steps of described condensation reaction such as can be: by formula (II) and formula (III) compound in dehydrated reagent as under the existence of sulfuric acid, acetic anhydride or zinc chloride, at 60-160 DEG C, react 2-4h and obtain formula (I) compound.After reaction terminates, cooling, pours into reactant in frozen water, neutralizes with sodium hydrate aqueous solution, produce precipitation, filter, wash precipitation with water, dry crude product, then be recrystallized in cyclohexane, and adopt activated carbon decolorizing, thus obtain described formula (I) compound.
The present invention is by control, formula (I) compound of both the organic assembling of silicon-titanium sol and chromotropic dye, siloxanes and titanoxane ratio and be subject to the control of mol ratio and the use of specific chromotropic dye between electron compound, thus make the final colour-changing agent for weaving face fabric not only have photo and thermal stability and the fastness of significant improvement and/or improvement relative to prior art, and at approximately room temperature there is reversible thermochromic effect.Obtaining of all these effects, depends on enforcement and/or the selection of following technological means:
1. by using the copolymerization that is hydrolyzed of a certain proportion of siloxanyl monomers and titanoxane monomer to obtain sol, thus form the gel network structure with specific pore, and this sol to be coated on fabric after the thin-film transparent, the adhesiveness that are formed strong, this can improve light and thermally stable and the fastness of the chromotropic dye be scattered in wherein.
2. can show the character of part inorganic oxide, namely good wear resistence and glossiness by be hydrolyzed sol that copolymerization obtains of siloxanyl monomers and titanoxane monomer.
3. the chromotropic dye that the present invention uses has excellent Reversible thermochromic energy at close to the temperature of room temperature, and this can make the fabric being coated with this colour-changing agent become light green color in summer high-temperature environment, thus increases emergency light reflex, reduces fabric surface temperature.
Detailed description of the invention
Below by specific embodiment, the present invention is described in detail, but these exemplary embodiments not form any type of any restriction to real protection scope of the present invention.
Preparation example 1:
2-diethylamino-4-hydroxyl-6-the methyl-pvrimidine of 2-(4 '-diethylamino-2 '-the hydroxy benzoyl)-benzoic acid and 1mol of getting 1mol, under 10mol acetic anhydride exists, adds hot reflux 4h, cooling; reactant is poured in frozen water, with NaOH neutralization, produce precipitation; filter; wash precipitation with water, dry crude product, is then recrystallized in cyclohexane; and adopt activated carbon decolorizing; obtain target product A1, productive rate is 95.4%, and fusing point is 176-177 DEG C.
Preparation example 2:
Replace outside 2-diethylamino-4-hydroxyl-6-methyl-pvrimidine divided by 2-dimethylamino-4-hydroxyl-6-methyl-pvrimidine, carried out preparation example 2 with the same way of preparation example 1, obtained compd A 2, productive rate is 97.2%, and fusing point is 182-183.5 DEG C.
Preparation example 3:
Replace 2-(4 '-diethylamino-2 '-hydroxy benzoyl)-benzoic acid divided by 2-(4 '-dimethylamino-2 '-hydroxy benzoyl)-benzoic acid and replace outside 2-diethylamino-4-hydroxyl-6-methyl-pvrimidine with 2-dimethylamino-4-hydroxyl-6-methyl-pvrimidine; preparation example 3 has been carried out with the same way of preparation example 1; obtain compound A-13; productive rate is 96.7%, and fusing point is 179-180.4 DEG C.
Preparation example 4:
Replace outside 2-(4 '-diethylamino-2 '-hydroxy benzoyl)-benzoic acid divided by 2-(4 '-dimethoxy amino-2 '-hydroxy benzoyl)-benzoic acid; preparation example 4 has been carried out with the same way of preparation example 1; obtain compd A 4; productive rate is 93.9%, and fusing point is 169-171 DEG C.
Preparation example 5:
Replace 2-diethylamino-4-hydroxyl-6-methyl-pvrimidine outer divided by 2-di-n-butyl amino-4-hydroxy-6-methyl-pvrimidine, carried out preparation example 5 with the same way of preparation example 1, obtained compound A-45, productive rate is 95.8%, and fusing point is 184-186 DEG C.
Embodiment 1:
(1) with 2,6-di-tert-butylphenol is as light stabilizer, with (2,2,6,6-tetramethyl-4-N-piperidyl) sebacate is as antioxidant, using tert-butyl catechol as by electron compound, these compounds and compd A 1 are dissolved in absolute ethyl alcohol, the concentration of compd A 1 is made to be 0.02mol/L, and the mol ratio between compd A 1 and tert-butyl catechol is 1:100, light stabilizer is 0.5:100 with the mol ratio by electron compound, and antioxidant is 1:100 with the mol ratio by electron compound;
(2) at 25 DEG C, be that 1:1 mixes that to be dissolved in mass percent concentration be in the ethanol of 95% with mol ratio by above-mentioned siloxanyl monomers and above-mentioned titanoxane monomer, form silicon-titanium sol, wherein silicon content is 0.05mol/L;
(3) in the water bath with thermostatic control of 25 DEG C, under the electric stirring of 500rpm rotating speed, the solution of 10mL step (1) is slowly added drop-wise in the sol of 20mL step (2), after dropwising, continue to stir 2h, then drip the aqueous hydrochloric acid solution of 0.02mol/L, make its pH value be 6.0, continue to stir 10h.Stop stirring, ageing 3h in described water bath with thermostatic control, the colour-changing agent BS-1 that then centrifugal, washing, drying obtain for weaving face fabric.
Embodiment 2:
Except being replaced by except A2 by the compd A 1 of embodiment 1, carrying out embodiment 2 with the same way of embodiment 1, having obtained the colour-changing agent for weaving face fabric, called after BS-2.
Embodiment 3:
Except being replaced by except A3 by the compd A 1 of embodiment 1, carrying out embodiment 3 with the same way of embodiment 1, having obtained the colour-changing agent for weaving face fabric, called after BS-3.
Embodiment 4:
Except being replaced by except A4 by the compd A 1 of embodiment 1, carrying out embodiment 4 with the same way of embodiment 1, having obtained the colour-changing agent for weaving face fabric, called after BS-4.
Embodiment 5:
Except being replaced by except A5 by the compd A 1 of embodiment 1, carrying out embodiment 5 with the same way of embodiment 1, having obtained the colour-changing agent for weaving face fabric, called after BS-5.
Embodiment 6:
Except the mol ratio of siloxanyl monomers and titanoxane monomer in embodiment 1 is replaced by 1:5 by 1:1, and in step (3), 20mL step (1) solution is joined the sol China and foreign countries of 20mL step (2), embodiment 6 has been carried out with the same way of embodiment 1, obtain the colour-changing agent for weaving face fabric, called after BS-6.
Embodiment 7:
Except the mol ratio of siloxanyl monomers and titanoxane monomer in embodiment 1 is replaced by except 1:0.2 by 1:1, carries out embodiment 7 with the same way of embodiment 1, obtained the colour-changing agent for weaving face fabric, called after BS-7.
Embodiment 8:
Except being that 0.05mol/L is replaced by except 0.02mol/L by silicon content in silicon in embodiment 1-titanium sol, carrying out embodiment 8 with the same way of embodiment 1, having obtained the colour-changing agent for weaving face fabric, called after BS-8.
Embodiment 9:
Except being that 0.05mol/L is replaced by except 0.1mol/L by silicon content in silicon in embodiment 1-titanium sol, carrying out embodiment 9 with the same way of embodiment 1, having obtained the colour-changing agent for weaving face fabric, called after BS-9.
Embodiment 10:
Except by embodiment 1 between compd A 1 and tert-butyl catechol the mol ratio of 1:100 for being replaced by except 1:75, having carried out embodiment 10 with the same way of embodiment 1, having obtained the colour-changing agent for weaving face fabric, called after BS-10.
Embodiment 11:
Except by embodiment 1 between compd A 1 and tert-butyl catechol the mol ratio of 1:100 for being replaced by except 1:50, having carried out embodiment 11 with the same way of embodiment 1, having obtained the colour-changing agent for weaving face fabric, called after BS-11.
Comparative example 1
Except not adding siloxanyl monomers and titanoxane monomer, implement comparative example 1 with other same steps of embodiment 1, obtain the colour-changing agent of corresponding contrast for weaving face fabric, called after DZ-1.
Comparative example 2
Except being that 1:0.1 mix and is dissolved in the ethanol China and foreign countries that mass percent concentration is 95% with mol ratio by siloxanyl monomers and titanoxane monomer, to implement comparative example 2 with the same way of embodiment 1, obtain the colour-changing agent contrasted accordingly for weaving face fabric, called after DZ-1.
Comparative example 3
Except being that 1:10 mix and is dissolved in the ethanol China and foreign countries that mass percent concentration is 95% with mol ratio by siloxanyl monomers and titanoxane monomer, to implement comparative example 3 with the same way of embodiment 1, obtain the colour-changing agent contrasted accordingly for weaving face fabric, called after DZ-3.
Comparative example 4
Except being replaced by except 1:10 by compd A in embodiment 11 and the mol ratio of tert-butyl catechol by 1:100, to implement comparative example 4 with the same way of embodiment 1, contrasted complex staining agent accordingly, called after DZ-4.
Comparative example 5
Except being replaced by except 1:150 by compd A in embodiment 11 and the mol ratio of tert-butyl catechol by 1:100, to implement comparative example 5 with the same way of embodiment 1, contrasted complex staining agent accordingly, called after DZ-5.
Performance test
The present invention that each embodiment obtains by following measuring is for the discoloration of the material in the colour-changing agent of weaving face fabric and comparative example and stability.
1: be distributed in 24g water by the colour-changing agent being used for weaving face fabric prepared by 0.5g embodiment 1-10 respectively, ultrasonic 1h, ultrasonic power is 300W.Then add wherein 1.2g white grey sheeting, under room temperature process 30 minutes, the cotton after process through dehydration, air dry.Then after this cotton being placed 1h in the air stream of 35 ± 5 DEG C, estimate its discoloration, and then place after 30 minutes at 20 ± 5 DEG C, then estimate the color after its recovery, the results are shown in table 1.
Table 1
As seen from the above table: the colour-changing agent for weaving face fabric of the present invention has significant thermochromic properties at approximately room temperature, and when not comprising siloxanes-titanoxane copolymer, because dye-uptake reduces and the decline of the photo and thermal stability of chromotropic dye, its Reversible thermochromic can significantly decline.
In addition, as can be seen from the above table, the mol ratio of siloxanes of the present invention and titanoxane has significant impact to its discoloration, and when for 1:0.2-5, discoloration is best, outside this scope, then has significant reduction.And formula (1) compound and also having its discoloration by the mol ratio between electron compound affects significantly, when for 1:50-100, discoloration is best, outside this scope, then and decrease to some degree.
2: the absorbance value cotton of above-mentioned process being adopted ultraviolet-visible spectrophotometer test chromotropic dye, then further it is washed different number of times with the routine of model identical at 25 DEG C, all dehydrations, drying after each washing, the absorption value at test same absorbent peak, then calculated the conservation rate of chromotropic dye by the ratio calculated between this absorption value and the absorption value before not washing, the results are shown in table 2.
Table 2
As seen from the above table: the colour-changing agent for weaving face fabric of the present invention has good fastness, and when not comprising siloxanes-titanoxane copolymer, the fastness of chromotropic dye on weaving face fabric significantly declines.
In addition, as can be seen from the above table, the firm performance of mol ratio on chromotropic dye of siloxanes of the present invention and titanoxane has significant impact, and when for 1:0.2-5, its firm performance is best, outside this scope, then and decrease to some degree.And formula (1) compound and also having its discoloration by the mol ratio between electron compound affects significantly, when for 1:50-100, its firm performance is best, outside this scope, then and decrease to some degree.
3: be distributed in 24g water by the colour-changing agent being used for weaving face fabric prepared by 0.5g embodiment 1-10 respectively, ultrasonic 1h, ultrasonic power is 300W.Then add wherein 1.2g white grey sheeting, under room temperature process 30 minutes, the cotton after process through dehydration, air dry.Then, under solar irradiation, place after 2 months in the air stream at 30-40 DEG C, after this cotton is placed 1h in the air stream of 35 ± 5 DEG C, estimate its discoloration, thus investigate its stability.The results are shown in Table 3.
Table 3
As seen from the above table, the colour-changing agent for weaving face fabric of the present invention has good stability, even if after 2 months, still keeps good discoloration.And when not comprising siloxanes-titanoxane copolymer, discoloration significantly reduces.Meanwhile, when the mol ratio of siloxanes and titanoxane is outside 1:0.2-5 scope, its discoloration significantly reduces.
Should be appreciated that the purposes of these embodiments is only not intended to for illustration of the present invention limit the scope of the invention.In addition; also should understand; after having read technology contents of the present invention, those skilled in the art can make various change, amendment and/or modification to the present invention, and these all equivalent form of values fall within the protection domain that the application's appended claims limits equally.
Claims (8)
1., for a colour-changing agent for weaving face fabric, the described colour-changing agent for weaving face fabric comprises silicon-titanium sol, light stabilizer, antioxidant and chromotropic dye;
Wherein, described silicon-titanium sol is formed with mol ratio 1:0.2-5 copolymerization by siloxanyl monomers and titanoxane monomer, and the structural formula of described siloxanyl monomers is as follows:
The structural formula of described titanoxane monomer is as follows:
Described chromotropic dye is by formula (I) compound and form by electron compound:
Wherein, R
1-R
3be selected from hydrogen, C independently of one another
1-C
8alkyl or C
1-C
8alkoxyl.
2. colour-changing agent as claimed in claim 1, it is characterized in that: described light stabilizer is selected from 2,6-DI-tert-butylphenol compounds, 2,4,6-tri-butyl-phenol, 2,6-toluene di-tert-butyl phenols, 4-methylol-2,6-DI-tert-butylphenol compounds, 2, any one or mixture multiple arbitrarily in 5-di-tert-butyl hydroquinone, 2,2-methylene-bis-(4-ethyl-6-tert-butyl phenol), 4,4-butylidenes-bis-(3 methy 6 tert butyl phenol).
3. colour-changing agent as claimed in claim 1 or 2, it is characterized in that: described antioxidant is selected from (2, 2, 6, 6-tetramethyl-4-N-piperidyl) sebacate, two (1, 2, 2, 6, 6-pentamethyl-4-piperidyl) sebacate, dimethyl succinate, 6-(1, 1, 3, 3-tetramethyl butyl) amino-1, 3, 5-triazine-2, 4-bis-base and (2, 2, 6, 6-tetramethyl-4-piperidyl) imino group-hexa-methylene-(2, 2, 6, 6-tetramethyl-4-piperidyl imino group) copolymer, 2-(3, 5-di-t-butyl-4-hydroxybenzyl)-2-n-butylmalonic acid two (1, 2, 2, 6, 6-pentamethyl-4-piperidyl) any one or mixture multiple arbitrarily in ester.
4. colour-changing agent as claimed in claim 1, it is characterized in that: described is any one or mixture multiple arbitrarily in phenol, tert-butyl catechol, parachlorophenol, 2,2-bis--(4 '-hydroxy phenyl) propane, gallic acid dodecane ester, n-butyl p-hydroxybenzoate by electron compound.
5. colour-changing agent as claimed in claim 4, is characterized in that: described formula (I) compound and be 1:50-100 by the mol ratio between electron compound.
6. the colour-changing agent as described in claim 4 or 5, is characterized in that: described light stabilizer is 0.3-1:100 with the mol ratio by electron compound, and antioxidant is 0.5-5:100 with the mol ratio by electron compound.
7. the preparation method of colour-changing agent as described in claim 5 or 6, comprises the steps:
(1) by light stabilizer, antioxidant, formula (I) compound be dissolved according to the above ratio in absolute ethyl alcohol by electron compound, the concentration of formula (I) compound is made to be 0.001-0.1mol/L;
(2) at 20-30 DEG C, siloxanyl monomers is mixed with titanoxane monomer to be dissolved in mass percentage concentration be in the ethanol of 95%, stir, form silicon-titanium sol;
(3) in the water bath with thermostatic control of 15-35 DEG C, under the electric stirring of 200-800rpm rotating speed, the solution of step (1) is added drop-wise in the silicon-titanium sol of step (2), after dropwising, continues stirring 10 minutes to 5h, then aqueous hydrochloric acid solution is dripped, make the pH value of system be 5.5-6.5, continue to stir 1-20h, stop stirring, ageing 1-5h in this water bath with thermostatic control, the colour-changing agent that then centrifugal, washing, drying obtain for weaving face fabric.
8. preparation method as claimed in claim 7, it is characterized in that: in described step (2), the addition of described siloxanyl monomers should make the silicon content in silicon-titanium sol be 0.01-1mol/L.
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| CN201410153948.0A CN103911877B (en) | 2014-04-17 | 2014-04-17 | A kind of colour-changing agent for weaving face fabric |
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| CN201410153948.0A CN103911877B (en) | 2014-04-17 | 2014-04-17 | A kind of colour-changing agent for weaving face fabric |
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| MY149850A (en) * | 2003-09-29 | 2013-10-31 | Ciba Holding Inc | Stabilization of photochromic systems |
| CN1282794C (en) * | 2003-12-05 | 2006-11-01 | 东华大学 | Composite hydrosol color fixing finishing agent, synthesizing method and use thereof |
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