CN106947238A - A kind of colour-changing method of TPU film - Google Patents
A kind of colour-changing method of TPU film Download PDFInfo
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- CN106947238A CN106947238A CN201710154440.6A CN201710154440A CN106947238A CN 106947238 A CN106947238 A CN 106947238A CN 201710154440 A CN201710154440 A CN 201710154440A CN 106947238 A CN106947238 A CN 106947238A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/0041—Optical brightening agents, organic pigments
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/08—Ingredients agglomerated by treatment with a binding agent
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/10—Transparent films; Clear coatings; Transparent materials
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
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Abstract
The present invention relates to a kind of colour-changing method of TPU film, by carrying out hyper-dispersant surface modification treatment to organic pigment, combined closely using the anchoring group and surface of pigments of hyper-dispersant and hyper-dispersant solvent chain and the good compatibilities of TPU, it is achieved thereby that stable dispersion of the pigment particles in mediator, a small amount of efficient effect, and uniform in color after film forming can be reached to changing colour for TPU.In addition, the method is simple to operation, universality is high.
Description
Technical field
The present invention relates to processing of high molecular material technical field, and in particular to a kind of colour-changing method of TPU film.
Background technology
Thermoplastic polyurethane (TPU) possesses hardness range wide (30HA~85HD), wear-resisting, oil resistant, transparent, the elastic spy such as good
Property, it is a major class relatively more special in elastomer, performance range is very wide, TPU is the family macromolecule material between rubber and plastics
Material, can heating plasticizing, in chemical constitution without or seldom crosslinking, its molecule is substantially linear.At present, TPU extensively should
For：Footwear material, ready-made clothes, inflatable toys, waterborne and sports equipment under water, medical equipment, body-building apparatus, automobile seat material,
Umbrella, leather trunk, suitcase etc., TPU can also replace flexible PVC to meet the environmental requirement in more and more fields.China in 2015
TPU film consumption figure accounts for the 20% of TPU product aggregate consumptions, about 40,000 yuan/ton of TPU film average selling price.According to 2013
Year 230000 tons of calculating of China TPU product consumptions amount, TPU film consumption figure is about 4.6 ten thousand tons, about 18.4 hundred million yuan of market comsupton volume.
, it is expected that 2013~2017 years TPU market scales average annual growths are 11.2%, 28.1 hundred million yuan are reached within 2017.
TPU film is the film being made through the special process such as calendering, curtain coating, blown film, coating on the basis of TPU particulate materials,
Using extremely extensively on sport footwear, trade dress, air bag, air cushion, oil on such as sole and vamp are wrapped.Now, TPU film can
Applied to top-grade building overlay film, the pad pasting of automobile and train vehicle window, footwear material etc..To meet diversity and ornamental market need
Ask, it is necessary to be changed colour to TPU film.At present, the colour-changing method of TPU film is directly to be blended with pigment mostly, or half tone print
Paint color, or adhesive fabric base is into folder screen cloth etc..General bad dispersibility of the pigment in TPU, is also easy to produce aberration, coating is not during processing
Uniformly easy to fall off to cause to fade, influence is used.The full TPU membrane of color is produced, prior art is often using increase pigment
Addition, this method inefficiency wastes pigment.
CN104479336 the problem of dispersing uniformity difference, is entered in TPU in order to avoid pigment using TPU Masterbatch to TPU
Row coloring, although improve decentralization of the pigment in TPU to a certain extent, but without fundamentally enhancing TPU and pigment
Between active force, easily cause and fade.
The content of the invention
In view of problems of the prior art, an object of the present invention is to provide a kind of side of changing colour of TPU film
Method, comprises the following steps：
(1) surface modification treatment is carried out to organic pigment with hyper-dispersant and obtains modified pigment；
(2) modified pigment and TPU particles are blended, film forming obtains TPU film of changing colour.
Hyper-dispersant surface modification treatment is carried out to organic pigment, the anchoring group and surface of pigments of hyper-dispersant are with ion
Key, covalent bond, hydrogen bond and Van der Waals key are combined closely, and solvent chain can have good compatibility with TPU, it is achieved thereby that
Stable dispersion of the pigment particles in mediator, a small amount of efficient effect, and uniform in color after film forming can be reached to changing colour for TPU.
In addition, the method is simple to operation, universality is high.
The present invention in addition to including modified pigment and TPU, can also include other components to the raw material of the blending, these its
His component is changed colour the different characteristic of TPU film described in assigning.
Hyper-dispersant described in step (1) of the present invention includes polyether dispersants, graft copolymer dispersant, polyesters and disperseed
Any a kind or at least two kinds of in agent, oligomeric soaps dispersant, the dispersant of water-soluble polymer dispersant or phthalocyanine color
Combination, wherein, it is typical but non-limiting to be combined as：The combination of polyether dispersants and graft copolymer dispersant；Polyesters point
The combination of powder and oligomeric soaps dispersant；The combination of the dispersant of water-soluble polymer dispersant and phthalocyanine color；It is preferred that poly-
Esters dispersant, the further preferably polyester dispersants containing amino-terminal group.
The present invention carries out surface modification treatment using hyper-dispersant to organic pigment, and hyper-dispersant passes through pigment with TPU
Chemical bonding, is made modified pigment.The pigment can combine closely with TPU, and color fastness is high.
Organic pigment described in step (1) of the present invention include AZOpigments, mordant pigment, phthalocyanine, quinacridone pigment or
Any a kind or at least two kinds of of combination in reduction pigments, wherein, it is typical but non-limiting to be combined as：AZOpigments and color lake
The combination of pigment；The combination of phthalocyanine and quinacridone pigment；The combination of reduction pigments and mordant pigment；It is preferred that AZOpigments.
The method of surface modification treatment includes described in step (1) of the present invention：Hyper-dispersant and organic pigment are added molten
It is ultrasonically treated after resonance grinding to obtain modified pigment in agent.
Preferably, the solvent includes acetate.
Preferably, the solvent is 2.5~8 times of the organic pigment weight, such as 2.5 times, 2.8 times, 3 times, 3.2
Again, 3.5 times, 3.8 times, 4 times, 4.2 times, 4.4 times, 4.6 times, 4.7 times, 4.9 times, 5 times, 6 times, 7 times or 8 times etc., preferably 3~5
Times.
Preferably, the hyper-dispersant be the organic pigment weight 6~30%, such as 6%, 6.5%, 7%,
7.5%th, 8%, 9%, 10%, 11%, 12%, 13%, 13.6%, 14%, 15%, 18%, 20%, 25%, 27% or 30%
Deng preferably 7~14%.Hyper-dispersant is not enough then it cannot be guaranteed that the dispersiveness of pigment, it is dark that hyper-dispersant is excessively then easily caused color and luster
It is light unglazed.
Preferably, the resonance is ground to：0.5~3h is ground under 1000~2000 times/min frequency, for example, is resonated
The frequency of grinding be 1000 times/min, 1200 times/min, 1300 times/min, 1400 times/min, 1500 times/min, 1600 times/
Min, 1700 times/min, 1800 times/min, 1900 times/min or 2000 time/min etc., time of resonance grinding is 0.5h, 0.8h,
1h, 1.2h, 1.4h, 1.5h, 1.6h, 1.75h, 2h, 2.3h, 2.45h, 2.75h or 3h's etc., preferably 1500~2000 times/min
1~2h is ground under frequency.The resonance grinding frequency of prior art is typically in 2500 times/more than min, the present invention due to ultra-dispersed
Effect between agent and TPU, it is that can obtain stable without loose colour that 1000~2000 times/min frequency low-resonance, which grinds 0.5~3h,
Modified pigment, efficiently high-quality change colour is carried out to TPU.
The present invention is not specifically limited to ultrasonically treated actual conditions, resonance grinding and ultrasonic disperse collective effect, is entered
One step improves modified pigment and TPU compatibility.
The mass ratio of TPU and modified pigment described in step (2) of the present invention is (40~200):(1~30), such as 40:
30、40:1、50:20、60:6、60:12、70:10、80:6、100:15 or 200:30 etc., preferably (50~100):(2~20), enter
One step is preferably (60~80):(6~12).
The raw material being blended described in step (2) of the present invention also includes heat stabilizer.
Preferably, the heat stabilizer includes sulfur-bearing antioxidant or/and phosphite antioxidant, the sulfur-bearing antioxidant packages
Include 2,4- bis--(n-octylthiomethylene) -6- methylphenols, (the dodecylthiomethyl) -6- of 2,4- bis- methylphenols, thio two
Any a kind or at least two kinds of combinations in propionic acid dilauryl or the double stearyls of thio-2 acid, wherein, it is typical but non-
Restricted is combined as：2,4- bis--(n-octylthiomethylene) -6- methylphenols and 2,4- bis- (dodecylthiomethyl) -6-
The combination of methylphenol；The combination of dilauryl thiodipropionate and the double stearyls of thio-2 acid；2,4- bis--(n-octyl
Sulphur methylene) -6- methylphenols and dilauryl thiodipropionate combination.
Preferably, the phosphite antioxidant is three (2,4- di-tert-butyl-phenyl) phosphite esters, four (2,4- bis- tertiary fourths
- 4,4 '-xenyl of base phenyl) bis-phosphite, three (nonyl phenyl) phosphite esters, double octadecyl pentaerythrite diphosphites
Any a kind or at least two kinds of combinations in ester or pentaerythrite diphosphite two (2,4- di-tert-butyl phenyl) ester, wherein,
It is typical but non-limiting to be combined as：Three (2,4- di-tert-butyl-phenyls) phosphite esters and four (2,4- di-tert-butyl-phenyl -4,
4 '-xenyl) bis-phosphite combination；Three (nonyl phenyl) phosphite esters and distearyl pentaerythritol diphosphite
Combination；Four (- 4,4 '-xenyl of 2,4- di-tert-butyl-phenyls) bis-phosphites and the (2,4- bis- of pentaerythrite diphosphite two
T-butyl-phenyl) ester combination.
Preferably, the TPU and the mass ratio of the heat stabilizer are (40~200):(1~20), such as 40:150:
240:2080:3200:1 preferred (50~100):(2~10), further preferred (60~80):(3~5).
It is blended in high-speed mixer and carries out described in step (2).
Preferably, the blending includes：In high-speed mixer mix 15~30min, such as 15min, 16min,
17min, 18min, 19min, 20min, 22min, 25min, 28min or 30min etc..
The method of film forming described in step (2) of the present invention is including any a kind in calendering, curtain coating, blown film or coating or extremely
Few 2 kinds combination, wherein, it is typical but non-limiting to be combined as：It is coated after calendering；It is coated with after curtain coating.
The second object of the present invention is that the TPU for the colour-changing method preparation for providing the TPU film as described in the first purpose is thin
Film.
Compared with prior art, the present invention at least has the advantages that：
Hyper-dispersant surface modification treatment is carried out to organic pigment, the anchoring group and surface of pigments of hyper-dispersant are with ion
Key, covalent bond, hydrogen bond and Van der Waals key are combined closely, and solvent chain can have good compatibility with TPU, it is achieved thereby that
Stable dispersion of the pigment particles in mediator, a small amount of efficient effect, and uniform in color after film forming can be reached to changing colour for TPU.
In addition, the method is simple to operation, universality is high.
The present invention is described in more detail below.But following examples are only the simple example of the present invention, are not represented
Or the scope of the present invention is limited, protection scope of the present invention is defined by claims.
Embodiment
Technical scheme is further illustrated below by embodiment.
For the present invention is better described, technical scheme is readily appreciated, it is as follows that the present invention enumerates embodiment.Ability
Understanding is of the invention it will be clearly understood that the embodiment is only to aid in by field technique personnel, is not construed as the concrete restriction to the present invention.
Embodiment 1
The step of being changed colour to TPU film is as follows：
(1) cetostearyl alcohol APEO dispersant and pigment yellow 93 are added in acetate, 1000 times/min frequency
It is ultrasonically treated after rate low-resonance grinding 3h to obtain modified pigment Huang 93；Wherein, acetate is 2.5 times of the weight of pigment yellow 93, whale
Wax Brij-721 dispersant is the 6% of the weight of pigment yellow 93；Wherein polyether dispersants are disclosed in CN101530760
Polyethers hyper-dispersant；
(2) by modified pigment Huang 93 and TPU according to 1:200 mix 30min in high-speed mixer, and it is equal that curtain coating obtains color
Even yellow transparent TPU film.
Comparative example 1
With differing only in for embodiment 1：Pigment is without modification.Obtained TPU film coloring is uneven.
Comparative example 2
With differing only in for embodiment 1：Replace hyper-dispersant with OPE, obtained TPU film color compared with
Embodiment 1 is more shallow.
Embodiment 2
One kind is changed colour TPU film, and step of changing colour is as follows：
(1) sulfonated phenylethylene-maleic anhydride graft copolymer dispersant and Lithol Red are added in acetate, 2000
It is ultrasonically treated after secondary/min frequency low-resonance grinding 0.5h to obtain being modified Lithol Red；Wherein, acetate is that lithol that is big
8 times of red weight, sulfonated phenylethylene-maleic anhydride graft copolymer dispersant is the 30% of Lithol Red weight；
(2) Lithol Red, TPU and dilauryl thiodipropionate will be modified according to 1:200:1, in high-speed mixer
15min is mixed, curtain coating obtains the red TPU film of uniform in color.
Comparative example 3
With differing only in for embodiment 2：Pigment is without modification.Obtained TPU film coloring is uneven.
Embodiment 3
One kind is changed colour TPU film, and step of changing colour is as follows：
(1) phthalocyanine sulfonamides alcohol and phthalocyanine blue are added in acetate, 1300 times/min frequency low-resonance grinding 2.7h
It is ultrasonically treated afterwards to obtain being modified phthalocyanine blue；Wherein, acetate is 7 times of phthalocyanine blue weight, and phthalocyanine sulfonamides alcohol is phthalocyanine blue weight
The 20% of amount；
(2) phthalocyanine blue, TPU and three (nonyl phenyl) phosphite esters will be modified according to 2:100:5 mix in high-speed mixer
20min is closed, curtain coating obtains the blue-tinted transparent TPU film of uniform in color.
Comparative example 4
With differing only in for embodiment 3：Pigment is without modification.Obtained TPU film coloring is uneven.
Embodiment 4
One kind is changed colour TPU film, and step of changing colour is as follows：
(1) oligomeric soaps dispersing agent C 2D-Na40 and quinacridone are added in acetate, under 1500 times/min frequency
It is ultrasonically treated after resonance grinding 2h to obtain being modified quinacridone；Wherein, acetate is 5 times of quinacridone weight, oligomeric soaps
Dispersing agent C 2D-Na40 is the 14% of quinacridone weight；
(2) quinacridone, TPU and distearyl pentaerythritol diphosphite will be modified according to 1:50:1 is mixed in high speed
25min is mixed in conjunction machine, curtain coating obtains the purple transparent TPU film of uniform in color.
Embodiment 5
One kind is changed colour TPU film, and step of changing colour is as follows：
(1) water-soluble polymer dispersant TH-560 and pigment blue 60 are added in acetate, 1800 times/min frequency
It is ultrasonically treated after low-resonance grinding 1h to obtain modified pigment indigo plant 60；Wherein, acetate is 3 times of pigment blue 60 weight, water solubility
Macromolecule dispersing agent TH-560 is the 7% of pigment blue 60 weight；
(2) by modified pigment indigo plant 60, TPU and pentaerythrite diphosphite two (2,4- di-tert-butyls phenyl) ester according to 4:
100:1 mixes 18min in high-speed mixer, and curtain coating obtains the Blue-Color Semitransparent TPU film of uniform in color.
Embodiment 6
A kind of colour-changing method of TPU film, step is as follows：
(1) polyester dispersants Dispersago-9002 and pigment yellow 24 are added in acetate, 1600 times/min frequency
It is ultrasonically treated after low-resonance grinding 1.5h to obtain modified pigment Huang 24；Wherein, acetate is 4 times of the weight of pigment yellow 24, polyester
Dispersant Dispersago-9002 is the 10% of the weight of pigment yellow 24；
(2) by modified pigment Huang 24, TPU and 2,4- bis--(n-octylthiomethylene) -6- methylphenols according to 2:80:3
19min is mixed in high-speed mixer, curtain coating obtains the yellow transparent TPU film of uniform in color.
Embodiment 7
A kind of colour-changing method of TPU film, step is as follows：
(1) polyester dispersants RG-5168 and pigment brown 23 are added in acetate, 1200 times/min frequency low-resonance is ground
It is ultrasonically treated after mill 2.5h to obtain modified pigment palm fibre 23；Wherein, acetate is 6 times of the weight of pigment brown 23, polyester dispersants RG-
5168 be the 12% of the weight of pigment brown 23；
(2) by modified pigment palm fibre 23, TPU and pentaerythrite diphosphite two (2,4- di-tert-butyls phenyl) ester according to 2:
120:1 mixes 23min in high-speed mixer, and curtain coating obtains the amber transparent TPU film of uniform in color.
Applicant states that the present invention illustrates the detailed features of the present invention, but not office of the invention by above-described embodiment
It is limited to above-mentioned detailed features, that is, does not mean that the present invention has to rely on above-mentioned detailed features and could implemented.Art
Technical staff is it will be clearly understood that any improvement in the present invention, equivalence replacement to raw material selected by the present invention and method and auxiliary
Increase, selection of concrete mode of material etc. are helped, within the scope of all falling within protection scope of the present invention and being open.
The preferred embodiment of the present invention described in detail above, still, the present invention are not limited in above-mentioned embodiment
Detail, in the range of the technology design of the present invention, a variety of simple variants can be carried out to technical scheme, this
A little simple variants belong to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should equally be considered as content disclosed in this invention.
Claims (9)
1. a kind of colour-changing method of TPU film, it is characterised in that comprise the following steps：
(1) surface modification treatment is carried out to organic pigment with hyper-dispersant and obtains modified pigment；
(2) modified pigment and TPU particles are blended, film forming obtains TPU film of changing colour.
2. the colour-changing method of TPU film as claimed in claim 1, it is characterised in that hyper-dispersant includes described in step (1)
Polyether dispersants, graft copolymer dispersant, polyesters dispersant, oligomeric soaps dispersant, water-soluble polymer dispersant or
Any a kind or at least two kinds of of combination in the dispersant of phthalocyanine color, preferably polyesters dispersant, further preferably containing substitution
The polyester dispersants of amino end group.
3. the colour-changing method of TPU film as claimed in claim 1 or 2, it is characterised in that organic pigment described in step (1)
Including any a kind or at least two kinds of of combination in AZOpigments, mordant pigment, phthalocyanine, quinacridone pigment or reduction pigments,
It is preferred that AZOpigments.
4. the colour-changing method of the TPU film as described in any one of claims 1 to 3, it is characterised in that table described in step (1)
The method of face modification includes：Hyper-dispersant and organic pigment are added in solvent, it is ultrasonically treated after resonance grinding to be changed
Property pigment；
Preferably, the solvent includes acetate；
Preferably, the solvent is 2.5~8 times, preferably 3~5 times of the organic pigment weight；
Preferably, the hyper-dispersant is 6~30%, preferably the 7~14% of the organic pigment weight；
Preferably, the resonance is ground to：0.5~3h of grinding under 1000~2000 times/min frequency, preferably 1500~
1~2h is ground under 2000 times/min frequency.
5. the colour-changing method of the TPU film as described in any one of Claims 1 to 4, it is characterised in that TPU described in step (2)
Mass ratio with the modified pigment is (40~200):(1~50), preferably (50~100):(2~20), further preferably (60
~80):(8~15).
6. the colour-changing method of the TPU film as described in any one of Claims 1 to 5, it is characterised in that described in step (2) altogether
Mixed raw material also includes heat stabilizer；
Preferably, the heat stabilizer includes sulfur-bearing antioxidant or/and phosphite antioxidant, and the sulfur-bearing antioxidant includes 2,
4- bis--(n-octylthiomethylene) -6- methylphenols, (the dodecylthiomethyl) -6- of 2,4- bis- methylphenols, thio-2 acid
Any a kind or at least two kinds of combinations in dilauryl or the double stearyls of thio-2 acid；
Preferably, the phosphite antioxidant is three (2,4- di-tert-butyl-phenyl) phosphite esters, four (2,4- di-tert-butyls
Base -4,4 '-xenyl) bis-phosphite, three (nonyl phenyl) phosphite esters, distearyl pentaerythritol diphosphite or
Any a kind or at least two kinds of combinations in pentaerythrite diphosphite two (2,4- di-tert-butyls phenyl) ester；
Preferably, the TPU and the mass ratio of the heat stabilizer are (40~200):(1~20), preferably (50~100):(2
~10), further preferred (60~80):(3~5).
7. the colour-changing method of the TPU film as described in any one of claim 1~6, it is characterised in that described in step (2) altogether
It is mixed in high-speed mixer and carries out；
Preferably, the blending includes：15~30min is mixed in high-speed mixer.
8. the colour-changing method of the TPU film as described in any one of claim 1~7, it is characterised in that described in step (2) into
The method of film includes any a kind or at least two kinds of of combination in calendering, curtain coating, blown film or coating.
9. TPU film prepared by the colour-changing method of the TPU film as described in any one of claim 1~8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710154440.6A CN106947238A (en) | 2017-03-15 | 2017-03-15 | A kind of colour-changing method of TPU film |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710154440.6A CN106947238A (en) | 2017-03-15 | 2017-03-15 | A kind of colour-changing method of TPU film |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109575784A (en) * | 2017-09-29 | 2019-04-05 | 上海凯轮智能科技有限公司 | A kind of sprayed protection material can be used for lossless colour changing and the secondary creation of vehicle body |
| CN110607065A (en) * | 2018-06-15 | 2019-12-24 | 昆山合顺通塑胶有限公司 | Carbon fiber plastic and preparation method thereof |
| CN113201217A (en) * | 2021-05-20 | 2021-08-03 | 金发科技股份有限公司 | Dark flame-retardant nylon and preparation method thereof |
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| CN103804891A (en) * | 2014-03-11 | 2014-05-21 | 北京化工大学 | Thermoplastic polyurethane blue master batch and preparation method thereof |
| CN104479336A (en) * | 2014-12-08 | 2015-04-01 | 东莞市雄林新材料科技股份有限公司 | Colour master batch for TPU film and preparation method thereof |
| CN104878463A (en) * | 2015-06-08 | 2015-09-02 | 连云港杜钟新奥神氨纶有限公司 | Preparing method of hyperdispersant and non-dyed polyurethane elastic fiber |
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