CN109679256A - A kind of polytetrafluoroethylene film - Google Patents
A kind of polytetrafluoroethylene film Download PDFInfo
- Publication number
- CN109679256A CN109679256A CN201811612317.5A CN201811612317A CN109679256A CN 109679256 A CN109679256 A CN 109679256A CN 201811612317 A CN201811612317 A CN 201811612317A CN 109679256 A CN109679256 A CN 109679256A
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- Prior art keywords
- mica
- mica sheet
- powder
- polytetrafluoroethylene film
- load
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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
-
- 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
- C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C08J2327/18—Homopolymers or copolymers of tetrafluoroethylene
-
- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2231—Oxides; Hydroxides of metals of tin
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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
- C08K2201/00—Specific properties of additives
- C08K2201/001—Conductive additives
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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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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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
- C08K3/34—Silicon-containing compounds
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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
- C08K7/00—Use of ingredients characterised by shape
-
- 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
- C08K9/12—Adsorbed ingredients, e.g. ingredients on carriers
Abstract
The invention discloses a kind of polytetrafluoroethylene films, by weight, are made of the following components: 100 parts of polytetrafluoroethylene (PTFE) powder；Load has 2-5 parts of mica sheet of stannic oxide；The load has the mica sheet of stannic oxide to be prepared according to the following steps: nano mica piece being dispersed in water to form mica sheet suspension, with salt acid for adjusting pH to 1-2, SnCl is added4·5H2O under heating stirring, generates faint yellow powder, washs drying, calcine 2-4h at 600-800 DEG C, obtains the mica sheet that load has stannic oxide；Wherein, the mass fraction of mica sheet is 8-12wt%, the SnCl being added in mica sheet suspension4·5H2The mass ratio of O and mica sheet is 0.2-0.5:1.Polytetrafluoroethylene film of the invention, the antistatic property not only having had, and its electrical insulation capability is not influenced, mechanical property also increases.
Description
Technical field
The present invention relates to a kind of field of thin film fabrication, and in particular to a kind of polytetrafluoroethylene film.
Background technique
Polytetrafluoroethylene film film is high with intensity, good insulating, not stickiness, in fluoroplastics, polytetrafluoroethylene (PTFE)
Consumption is maximum, and purposes is most wide, due to having one layer of inert fluorine-containing shell outside polytetrafluoroethylene (PTFE) molecule, make it have it is outstanding not
Sticky energy and low coefficient of friction.
Polytetrafluoroethylene (PTFE) has good insulating properties, weatherability and anti-flammability, there is the laudatory title of " King ", but it and plastics
Compare, mechanical performance be not very well, it is not wear-resisting, and just because of it has excellent electrical insulating property, it is non-conductive, so when it is external by
Electrostatic is generated to electrification is easy to when friction, due to the suction-operated of electrostatic, is caused when plastic film is processed, so that film
Dust is easily adsorbed on surface, is easy to pollution.
Summary of the invention
Goal of the invention: the purpose of the present invention is to solve the above the deficiencies in the prior art, provide a kind of polytetrafluoroethylene (PTFE)
Film has good antistatic property and mechanical property.
Technical solution: a kind of polytetrafluoroethylene film of the present invention is made of the following components by weight:
100 parts of polytetrafluoroethylene (PTFE) powder；
Load has 2-5 parts of mica sheet of stannic oxide；
The load has the mica sheet of stannic oxide to be prepared according to the following steps: nano mica piece is dispersed in water shape
SnCl is added with salt acid for adjusting pH to 1-2 at mica sheet suspension4·5H2O under heating stirring, generates faint yellow powder, washes
Drying is washed, calcines 2-4h at 600-800 DEG C, obtains the mica sheet that load has stannic oxide；
Wherein, the mass fraction of mica sheet is 8-12wt%, the SnCl being added in mica sheet suspension4·5H2O and cloud
The mass ratio of master slice is 0.2-0.5:1.
Wherein it is preferred to which the nano mica piece is prepared according to the following steps:
1) mica powder is calcined at 600-800 DEG C 1-2h, obtains calcining mica powder；
2) it disperses calcining mica powder in ethyl alcohol, ultrasonic removing is then carried out using ultrasonication machine, it is outstanding to collect upper layer
Supernatant liquid, then remaining sample, which is dispersed in again in isometric ethyl alcohol, continues ultrasound removing, and successively this is operated, until upper layer is saturating
It is bright, the upper layer suspension of collection is centrifuged, nano mica piece is drying to obtain.
Preferably, the power of ultrasonication machine is 200-300W, and the time of ultrasound removing is 30-60min every time；
Preferably, the calcining mica powder 2-4g being added in every 100mL ethyl alcohol.
Preferably, the upper layer suspension of collection is centrifuged under 2500-3000r/min.
Preferably, the mica powder is muscovite or phlogopite.
Preferably, load has in the preparation process of mica sheet of stannic oxide, and the temperature of heating stirring is 80-100 DEG C, when
Between be 2-4h.
The utility model has the advantages that
The present invention is added to the mica sheet that load has stannic oxide in the process recipe of production polytetrafluoroethylene film,
I.e. added filler shape tends to flat from spherical shape, and electric conductivity is improved significantly, relative to existing conductive filler
Additive amount greatly reduce in the case where, the antistatic property having had, and do not influence its electrical insulation capability, and mechanical property
It can also increase.
Specific embodiment
In order to deepen the understanding of the present invention, the present invention will be described in further detail with reference to the examples below, the embodiment
For explaining only the invention, it is not intended to limit the scope of the present invention..
Embodiment 1 loads the preparation for having the mica sheet of stannic oxide
1) mica powder is calcined at 600 DEG C 4h, obtains calcining mica powder；
2) it disperses 20g calcining mica powder in 1L ethyl alcohol, ultrasonic removing is then carried out using ultrasonication machine (250W),
Upper layer suspension is collected, then remaining sample, which is dispersed in again in isometric ethyl alcohol, continues ultrasound removing, and successively this is operated, directly
It is transparent to upper layer, it is centrifuged under 3000r/min after the upper layer suspension of collection is merged, is drying to obtain nano mica piece；
3) step 2) is obtained into nano mica piece 1g and is scattered in formation mica sheet suspension in 100mL water, adjusted with hydrochloric acid
0.4g SnCl is added in pH to 1-24·5H2O stirs 2-4h at 80-100 DEG C, generates faint yellow powder, washs drying,
2-4h is calcined at 600-800 DEG C, obtains the mica sheet that load has stannic oxide；
Embodiment 2
Polytetrafluoroethylene film described in the present embodiment is made of the following components by weight:
100 parts of polytetrafluoroethylene (PTFE) powder；
Load prepared by embodiment 1 has 2 parts of mica sheet of stannic oxide；
The preparation method of polytetrafluoroethylene film described in the present embodiment be by the polytetrafluoroethylene (PTFE) powder of aforementioned proportion and
Load has the mica sheet of stannic oxide after mixing evenly, the embryo material of certain shapes to be made through molding sintering in high-speed mixer
Afterwards, then through turning, rolling process orientation film is made, is polytetrafluoroethylene film 1#.
Embodiment 2
Polytetrafluoroethylene film described in the present embodiment is made of the following components by weight:
100 parts of polytetrafluoroethylene (PTFE) powder；
Load prepared by embodiment 1 has 3 parts of mica sheet of stannic oxide；
By preparation method same as Example 2, polytetrafluoroethylene film 2# is made.
Embodiment 3
Polytetrafluoroethylene film described in the present embodiment is made of the following components by weight:
100 parts of polytetrafluoroethylene (PTFE) powder；
Load prepared by embodiment 1 has 4 parts of mica sheet of stannic oxide；
By preparation method same as Example 2, polytetrafluoroethylene film 3# is made.
Embodiment 4
Polytetrafluoroethylene film described in the present embodiment is made of the following components by weight:
100 parts of polytetrafluoroethylene (PTFE) powder；
Load prepared by embodiment 1 has 5 parts of mica sheet of stannic oxide；
By preparation method same as Example 2, polytetrafluoroethylene film 4# is made.
Comparative example
By preparation method same as Example 2, the difference is that raw material only includes polytetrafluoroethylene (PTFE) powder, it does not include implementing
Load prepared by example 1 has the mica sheet of stannic oxide, and polytetrafluoroethylene film 0# is made.
Through measuring, the performance of polytetrafluoroethylene film 1#, 2#, 3# and 4# and 0# are as shown in table 1:
Table 1
From the point of view of polytetrafluoroethylene film 1-4# and 0# comparison, it can be found that load has the mica sheet of stannic oxide to improvement
The antistatic property of polytetrafluoroethylene film plays critically important effect, and relative to polytetrafluoroethylene (PTFE) powder, load has titanium dioxide
In the case that the mica sheet of tin need to only add 2-5wt%, have to the antistatic property of film and significantly improve, and mechanical property is also
It increases.
Presently preferred embodiments of the present invention is not intended to limit the invention, all within the spirits and principles of the present invention,
Any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of polytetrafluoroethylene film, which is characterized in that by weight, be made of the following components:
100 parts of polytetrafluoroethylene (PTFE) powder；
Load has 2-5 parts of mica sheet of stannic oxide；
The load has the mica sheet of stannic oxide to be prepared according to the following steps: being dispersed in water nano mica piece to form cloud
SnCl is added with salt acid for adjusting pH to 1-2 in master slice suspension4·5H2O under heating stirring, generates faint yellow powder, and washing is dry
It is dry, 2-4h is calcined at 600-800 DEG C, obtains the mica sheet that load has stannic oxide；
Wherein, the mass fraction of mica sheet is 8-12wt%, the SnCl being added in mica sheet suspension4·5H2O and mica sheet
Mass ratio be 0.2-0.5:1.
2. a kind of polytetrafluoroethylene film according to claim 1, which is characterized in that the nano mica piece is by following
Step is prepared:
1) mica powder is calcined at 600-800 DEG C 1-2h, obtains calcining mica powder；
2) it disperses calcining mica powder in ethyl alcohol, ultrasonic removing is then carried out using ultrasonication machine, collects upper layer suspension,
Then remaining sample, which is dispersed in again in isometric ethyl alcohol, continues ultrasound removing, and successively this is operated, until upper layer is transparent, will be received
The upper layer suspension of collection is centrifuged after merging, and is drying to obtain nano mica piece.
3. a kind of polytetrafluoroethylene film according to claim 2, which is characterized in that when ultrasound removing, ultrasonication machine
Power be 200-300W, every time ultrasound removing time be 30-60min.
4. a kind of polytetrafluoroethylene film according to claim 2, which is characterized in that is be added in every 100mL ethyl alcohol forges
Glowing cloud female powder 2-4g.
5. a kind of polytetrafluoroethylene film according to claim 2, which is characterized in that the upper layer suspension of collection in
It is centrifuged under 2500-3000r/min.
6. a kind of polytetrafluoroethylene film according to claim 2, which is characterized in that the mica powder be muscovite or
Phlogopite.
7. a kind of polytetrafluoroethylene film according to claim 1, which is characterized in that load has the mica sheet of stannic oxide
Preparation process in, the temperature of heating stirring is 80-100 DEG C, time 2-4h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811612317.5A CN109679256A (en) | 2018-12-27 | 2018-12-27 | A kind of polytetrafluoroethylene film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811612317.5A CN109679256A (en) | 2018-12-27 | 2018-12-27 | A kind of polytetrafluoroethylene film |
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| Publication Number | Publication Date |
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| CN109679256A true CN109679256A (en) | 2019-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811612317.5A Pending CN109679256A (en) | 2018-12-27 | 2018-12-27 | A kind of polytetrafluoroethylene film |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1359988A (en) * | 2001-12-29 | 2002-07-24 | 中国化工建设总公司常州涂料化工研究院 | Process for preparing conducting light colour flaky pigment |
| CN105504612A (en) * | 2016-02-01 | 2016-04-20 | 天津市天塑科技集团有限公司 | Preparation method of anti-static polytetrafluoroethylene thin film |
| CN106976887A (en) * | 2017-04-19 | 2017-07-25 | 合肥工业大学 | A kind of a large amount of methods for preparing two-dimensional nano mica sheet of utilization liquid phase ultrasound |
-
2018
- 2018-12-27 CN CN201811612317.5A patent/CN109679256A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1359988A (en) * | 2001-12-29 | 2002-07-24 | 中国化工建设总公司常州涂料化工研究院 | Process for preparing conducting light colour flaky pigment |
| CN105504612A (en) * | 2016-02-01 | 2016-04-20 | 天津市天塑科技集团有限公司 | Preparation method of anti-static polytetrafluoroethylene thin film |
| CN106976887A (en) * | 2017-04-19 | 2017-07-25 | 合肥工业大学 | A kind of a large amount of methods for preparing two-dimensional nano mica sheet of utilization liquid phase ultrasound |
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