CN105504773A - Polyurethane film with electrical conductivity and preparation method thereof - Google Patents
Polyurethane film with electrical conductivity and preparation method thereof Download PDFInfo
- Publication number
- CN105504773A CN105504773A CN201610011781.3A CN201610011781A CN105504773A CN 105504773 A CN105504773 A CN 105504773A CN 201610011781 A CN201610011781 A CN 201610011781A CN 105504773 A CN105504773 A CN 105504773A
- Authority
- CN
- China
- Prior art keywords
- polyurethane film
- urethane resin
- predispersion
- electroconductibility
- coating work
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Classifications
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
-
- 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
-
- 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
Abstract
The invention discloses a polyurethane film with electrical conductivity. The polyurethane film is prepared from, by mass, 10-90 parts of a pre-dispersed body, 10-90 parts of polyurethane resin, 60-100 parts of solvent, 0.1-1 part of an auxiliary; the sum of the mass fraction of the pre-dispersed body and the polyurethane resin is 100, and the pre-dispersed body is formed in the mode that 1-10 parts, by mass, of graphene and 100 parts, by mass, of the polyurethane resin are added into a high-shear dispersion machine and premixed at the rotation speed of 800-8000 r/min. According to the polyurethane film with electrical conductivity, the graphene is added to coating work pulp, and the graphene is premixed with part of polyurethane in the first place and then mixed and stirred with the other part of polyurethane and other auxiliaries to form the coating work pulp, so that the polyurethane film is prepared; the film is environmentally friendly, low in cost and good in electrical conductivity, and the surface resistance of the polyurethane film can reach 103-105 omega.
Description
Technical field
The present invention relates to a kind of polyurethane film and preparation method thereof, particularly relate to a kind of polyurethane film with electroconductibility and preparation method thereof.
Background technology
Polyurethane film is frivolous owing to having, and excellent wear resistance, retractility and the advantage such as weathering resistance and oil-proofness, and environmental protection, be used widely in technical fields such as clothes, furniture and wrapping material at present.But polyurethane film easily plays electrostatic, especially in dry environments, if used as dress materials, especially use as underwear material, the electrostatic produced can produce high pressure instantaneously, thus causes uncomfortable, even causes cardiovascular disorder.Another at some special occasions, such as electronic product production workshop needs to conduct electricity clothes, the packing bag of precise electronic component and need the worktable of anti-electrostatic and the operator's console etc. in laboratory, also all must use under without electrostatic environment, obvious existing polyurethane film cannot meet the more demand of people.
Summary of the invention
In order to overcome above-mentioned defect, the invention provides a kind of polyurethane film with electroconductibility, not only environmental protection, cost are low, and conduct electricity very well, and polyurethane surface surface resistance can reach 10
3-10
5Ω.
The present invention in order to the technical scheme solving its technical problem and adopt is:
Have a polyurethane film for electroconductibility, described polyurethane film contains the component of following mass fraction:
Predispersion: 10-90 part;
Urethane resin: 10-90 part;
Solvent 60-100 part;
Auxiliary agent 0.1-1 part;
Wherein, the mass fraction summation of described predispersion and described urethane resin is 100 parts, and described predispersion is respectively the Graphene of 1-10 part by mass fraction and the urethane resin of 100 parts adds in high-shear dispersion machine, under the rotating speed of 800-8000r/min, pre-mixing is formed; Described urethane resin to be solid mass percentage be 30% and solvent quality percentage composition be the urethane resin of 70%.
As a further improvement on the present invention, the thickness of described polyurethane film is 15-50 μm.
The present invention also provides a kind of preparation method with the polyurethane film of electroconductibility, it is characterized in that, comprises the following steps:
A, prepare predispersion: be that the Graphene of 1-10 part and the urethane resin of 100 parts add in high-shear dispersion machine by mass fraction, and under the rotating speed of 800-8000r/min, pre-mixing forms predispersion;
B, prepare coating work slurry: mass fraction is followed successively by predispersion 10-90 part, urethane resin 10-90 part, solvent 60-100 part and auxiliary agent 0.1-1 part mixing and stirring, formation coating work is starched, and wherein predispersion and urethane resin sum are 100 parts;
C, coating: prepare a separated type material, described coating work slurry is coated a side surface of described separated type material, cooling after drying, obtains the polyurethane film be compound on separated type material;
D, separation: be separated with separated type material by described polyurethane film, namely obtain the polyurethane film with electroconductibility.
As a further improvement on the present invention, in described step C, the glue spread of described coating work slurry is 100-400g/m
2.
As a further improvement on the present invention, described separated type material is separate-type paper or release film.
The invention has the beneficial effects as follows: this polyurethane film with electroconductibility by adding Graphene in coating work slurry, and first form coating work slurry with another part urethane and other auxiliary material mix and blends again by after Graphene and some polyurethanes pre-mixing, thus obtained polyurethane film, not only environmental protection, cost are low, and conduct electricity very well, polyurethane film surface resistivity can reach 10
3-10
5Ω.
Embodiment
In conjunction with the embodiments; the present invention is elaborated; but protection scope of the present invention is not limited to following embodiment, the simple equivalence namely in every case done with the present patent application the scope of the claims and description changes and modifies, and all still belongs within patent covering scope of the present invention.
Embodiment 1:
A, prepare predispersion: add in high-shear dispersion machine by the Graphene of 5kg and the urethane resin of 100kg, under the rotating speed of 2900r/min, pre-mixing forms predispersion;
B, prepare coating work slurry: by predispersion 50kg, urethane resin 50kg, solvent 60kg and auxiliary agent 0.1kg mixing and stirring, formed coating work slurry;
C, coating: prepare a separate-type paper, described coating work slurry is coated a side surface of separate-type paper, cooling after drying, obtains the polyurethane film be compound in separate-type paper, then dries, cools;
D, separation: be separated with separate-type paper by described polyurethane film, obtain the polyurethane film with electroconductibility.
Wherein, described urethane resin to be solid mass percentage be 30% and solvent quality percentage composition be the urethane resin of 70%.
Embodiment 2:
A, prepare predispersion: add in high-shear dispersion machine by the Graphene of 5kg and the urethane resin of 100kg, under the rotating speed of 2900r/min, pre-mixing forms predispersion;
B, prepare coating work slurry: by predispersion 60kg, urethane resin 40kg, solvent 70kg and auxiliary agent 0.3kg mixing and stirring, formed coating work slurry;
C, coating: prepare a separate-type paper, described coating work slurry is coated a side surface of separate-type paper, cooling after drying, obtains the polyurethane film be compound in separate-type paper, then dries, cools;
D, separation: be separated with separate-type paper by described polyurethane film, obtain the polyurethane film with electroconductibility.
Wherein, described urethane resin to be solid mass percentage be 30% and solvent quality percentage composition be the urethane resin of 70%.
Embodiment 3:
A, prepare predispersion: add in high-shear dispersion machine by the Graphene of 5kg and the urethane resin of 100kg, under the rotating speed of 2900r/min, pre-mixing forms predispersion;
B, prepare coating work slurry: by predispersion 70kg, urethane resin 30kg, solvent 80kg and auxiliary agent 0.6kg mixing and stirring, formed coating work slurry;
C, coating: prepare a separate-type paper, described coating work slurry is coated a side surface of separate-type paper, cooling after drying, obtains the polyurethane film be compound in separate-type paper, then dries, cools;
D, separation: be separated with separate-type paper by described polyurethane film, obtain the polyurethane film with electroconductibility.
Wherein, described urethane resin to be solid mass percentage be 30% and solvent quality percentage composition be the urethane resin of 70%.
Embodiment 4:
A, prepare predispersion: add in high-shear dispersion machine by the Graphene of 2.5kg and the urethane resin of 100kg, under the rotating speed of 2900r/min, pre-mixing forms predispersion;
B, prepare coating work slurry: by predispersion 70kg, urethane resin 30kg, solvent 90kg and auxiliary agent 0.8kg mixing and stirring, formed coating work slurry;
C, coating: prepare a separate-type paper, described coating work slurry is coated a side surface of separate-type paper, cooling after drying, obtains the polyurethane film be compound in separate-type paper, then dries, cools;
D, separation: be separated with separate-type paper by described polyurethane film, obtain the polyurethane film with electroconductibility.
Wherein, described urethane resin to be solid mass percentage be 30% and solvent quality percentage composition be the urethane resin of 70%.
Embodiment 5:
A, prepare predispersion: add in high-shear dispersion machine by the Graphene of 7.5kg and the urethane resin of 100kg, under the rotating speed of 2900r/min, pre-mixing forms predispersion;
B, prepare coating work slurry: by predispersion 30kg, urethane resin 70kg, solvent 100kg and auxiliary agent 1kg mixing and stirring, formed coating work slurry;
C, coating: prepare a separate-type paper, described coating work slurry is coated a side surface of separate-type paper, cooling after drying, obtains the polyurethane film be compound in separate-type paper, then dries, cools;
D, separation: be separated with separate-type paper by described polyurethane film, obtain the polyurethane film with electroconductibility.
Wherein, described urethane resin to be solid mass percentage be 30% and solvent quality percentage composition be the urethane resin of 70%.
Comparative example:
A, prepare coating work slurry: by urethane resin 100kg, solvent 70kg, mill base 5kg and auxiliary agent 0.5kg mixing and stirring, formed coating work slurry;
B, coating: prepare a separate-type paper, described coating work slurry is coated a side surface of described separate-type paper, cooling after drying, obtains the polyurethane film be compound in separate-type paper.
Wherein, the urethane resin in described urethane resin and described predispersion be solid mass percentage be 30% and solvent quality percentage composition be the urethane resin of 70%.
Polyurethane film embodiment 1-5 and comparative example obtained carries out surface resistivity test respectively, and test result is as table 1:
Table 1: embodiment 1-5 and comparative example table surface resistance test result:
| Embodiment | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Comparative example |
| Surface resistivity | 10 5Ω | 10 4Ω | 10 3Ω | 10 5Ω | 10 5Ω | ∞ |
As can be seen from upper table test result:
Embodiment 1-3, add the Graphene (100 parts of urethane) of 5 parts in predispersion, along with the increase of predispersion consumption, the surface resistivity of polyurethane film also progressively reduces, from 10
5Ω-10
3Ω;
In embodiment 4, in predispersion, Graphene content is few, then predispersion consumption large (70%), and the surface resistivity of Synthetic Leather just can reach 10
5Ω;
In embodiment 5, in predispersion, Graphene content is many, then predispersion consumption few (30%), and the surface resistivity of Synthetic Leather just can reach 10
5Ω;
Comparative example does not add Graphene, and the surface resistivity of polyurethane film is ∞.
Wherein, the content of solvent and auxiliary agent, little on the surface resistivity impact of polyurethane film.
In addition, because Graphene is nano-scale particle, if directly and urethane resin be mixed to form coating work slurry, be then easy to caking, unite or condense, can not be distributed to well in coating work slurry, make the sample electroconductibility effect of acquisition bad.And adopt technical solutions according to the invention, first and some polyurethanes resin pre-mixing under high shear by Graphene, Graphene is made to be distributed in urethane resin fully, and then starch raw material with other coating work and mix, the conductivity of the polyurethane film obtained improves greatly, can reach 10
3-10
5Ω.
As can be seen here, the present invention adds Graphene in coating work slurry, and first form fabric work slurry with another part urethane and other auxiliary material mix and blends again by after Graphene and some polyurethanes pre-mixing, thus obtained polyurethane film, not only environmental protection, cost are low, and conduct electricity very well, raw materials cost is not high simultaneously.
Claims (5)
1. have a polyurethane film for electroconductibility, it is characterized in that, described polyurethane film contains the component of following mass fraction:
Predispersion: 10-90 part;
Urethane resin: 10-90 part;
Solvent 60-100 part;
Auxiliary agent 0.1-1 part;
Wherein, the mass fraction summation of described predispersion and described urethane resin is 100 parts, and described predispersion is respectively the Graphene of 1-10 part by mass fraction and the urethane resin of 100 parts adds in high-shear dispersion machine, under the rotating speed of 800-8000r/min, pre-mixing is formed; Described urethane resin to be solid mass percentage be 30% and solvent quality percentage composition be the urethane resin of 70%.
2. the polyurethane film with electroconductibility according to claim 1, is characterized in that: the thickness of described polyurethane film is 15-50 μm.
3. there is a preparation method for the polyurethane film of electroconductibility as claimed in claim 1, it is characterized in that, comprise the following steps:
A, prepare predispersion: be that the Graphene of 1-10 part and the urethane resin of 100 parts add in high-shear dispersion machine by mass fraction, and under the rotating speed of 800-8000r/min, pre-mixing forms predispersion;
B, prepare coating work slurry: mass fraction is followed successively by predispersion 10-90 part, urethane resin 10-90 part, solvent 60-100 part and auxiliary agent 0.1-1 part mixing and stirring, formation coating work is starched, and wherein predispersion and urethane resin sum are 100 parts;
C, coating: prepare a separated type material, described coating work slurry is coated a side surface of described separated type material, cooling after drying, obtains the polyurethane film be compound on separated type material;
D, separation: be separated with separated type material by described polyurethane film, namely obtain the polyurethane film with electroconductibility.
4. the preparation method with the polyurethane film of electroconductibility according to claim 3, is characterized in that: in described step C, and the glue spread of described coating work slurry is 100-400g/m
2.
5. the preparation method with the polyurethane film of electroconductibility according to claim 3, is characterized in that: described separated type material is separate-type paper or release film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610011781.3A CN105504773A (en) | 2016-01-08 | 2016-01-08 | Polyurethane film with electrical conductivity and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610011781.3A CN105504773A (en) | 2016-01-08 | 2016-01-08 | Polyurethane film with electrical conductivity and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105504773A true CN105504773A (en) | 2016-04-20 |
Family
ID=55713097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610011781.3A Pending CN105504773A (en) | 2016-01-08 | 2016-01-08 | Polyurethane film with electrical conductivity and preparation method thereof |
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|---|---|
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Cited By (6)
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| CN105946893A (en) * | 2016-06-13 | 2016-09-21 | 眉山中车制动科技股份有限公司 | Train accident emergency monitoring system |
| CN106279732A (en) * | 2016-08-30 | 2017-01-04 | 昆山华阳新材料股份有限公司 | A kind of antistatic film based on Graphene and preparation method thereof |
| WO2018202747A1 (en) | 2017-05-05 | 2018-11-08 | Directa Plus S.P.A. | Polyurethane film comprising graphene and preparation process thereof. |
| WO2019202028A1 (en) | 2018-04-20 | 2019-10-24 | Directa Plus S.P.A. | Textile article comprising graphene and process for its preparation |
| IT201900023607A1 (en) | 2019-12-11 | 2021-06-11 | Directa Plus Spa | Method and composition for improving the electrical and thermal conductivity of a textile article and textile article thus obtained. |
| CN115352142A (en) * | 2022-08-18 | 2022-11-18 | 东莞市凯信针织有限公司 | Graphene conductive fabric and preparation process thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105946893A (en) * | 2016-06-13 | 2016-09-21 | 眉山中车制动科技股份有限公司 | Train accident emergency monitoring system |
| CN106279732A (en) * | 2016-08-30 | 2017-01-04 | 昆山华阳新材料股份有限公司 | A kind of antistatic film based on Graphene and preparation method thereof |
| WO2018202747A1 (en) | 2017-05-05 | 2018-11-08 | Directa Plus S.P.A. | Polyurethane film comprising graphene and preparation process thereof. |
| CN110741033A (en) * | 2017-05-05 | 2020-01-31 | 迪热克塔普拉斯股份公司 | Polyurethane film comprising graphene and method for preparing same |
| EP4001349A1 (en) | 2017-05-05 | 2022-05-25 | Directa Textile Solutions S.R.L. | Polyurethane film comprising graphene and preparation process thereof |
| WO2019202028A1 (en) | 2018-04-20 | 2019-10-24 | Directa Plus S.P.A. | Textile article comprising graphene and process for its preparation |
| IT201900023607A1 (en) | 2019-12-11 | 2021-06-11 | Directa Plus Spa | Method and composition for improving the electrical and thermal conductivity of a textile article and textile article thus obtained. |
| WO2021115868A1 (en) | 2019-12-11 | 2021-06-17 | Directa Plus S.P.A. | Method and composition for increasing the electrical and thermal conductivity of a textile article and textile article thus obtained. |
| CN115352142A (en) * | 2022-08-18 | 2022-11-18 | 东莞市凯信针织有限公司 | Graphene conductive fabric and preparation process thereof |
| CN115352142B (en) * | 2022-08-18 | 2023-03-17 | 东莞市凯信针织有限公司 | Graphene conductive fabric and preparation process thereof |
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Application publication date: 20160420 |
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