CN117624670A - Preparation method and application of polyetherimide-tris (2-hydroxyethyl) isocyanurate blend type film - Google Patents
Preparation method and application of polyetherimide-tris (2-hydroxyethyl) isocyanurate blend type film Download PDFInfo
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- CN117624670A CN117624670A CN202311565807.5A CN202311565807A CN117624670A CN 117624670 A CN117624670 A CN 117624670A CN 202311565807 A CN202311565807 A CN 202311565807A CN 117624670 A CN117624670 A CN 117624670A
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- hydroxyethyl
- isocyanurate
- tris
- polyetherimide
- film
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- 239000000203 mixture Substances 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 239000000843 powder Substances 0.000 claims abstract description 22
- 239000002245 particle Substances 0.000 claims abstract description 21
- 239000011259 mixed solution Substances 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 13
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000011248 coating agent Substances 0.000 claims abstract description 7
- 238000000576 coating method Methods 0.000 claims abstract description 7
- 238000001035 drying Methods 0.000 claims abstract description 7
- 239000004697 Polyetherimide Substances 0.000 claims description 70
- 229920001601 polyetherimide Polymers 0.000 claims description 70
- BPXVHIRIPLPOPT-UHFFFAOYSA-N 1,3,5-tris(2-hydroxyethyl)-1,3,5-triazinane-2,4,6-trione Chemical compound OCCN1C(=O)N(CCO)C(=O)N(CCO)C1=O BPXVHIRIPLPOPT-UHFFFAOYSA-N 0.000 claims description 56
- 239000000758 substrate Substances 0.000 claims description 19
- 239000011521 glass Substances 0.000 claims description 10
- 238000004321 preservation Methods 0.000 claims description 10
- 239000000243 solution Substances 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000004140 cleaning Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 4
- 239000008367 deionised water Substances 0.000 claims description 4
- 229910021641 deionized water Inorganic materials 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000003599 detergent Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 abstract description 39
- 230000015556 catabolic process Effects 0.000 abstract description 18
- 125000000954 2-hydroxyethyl group Chemical group [H]C([*])([H])C([H])([H])O[H] 0.000 abstract description 9
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 abstract description 9
- 239000003990 capacitor Substances 0.000 abstract description 7
- 229920000642 polymer Polymers 0.000 abstract description 6
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 11
- 239000010408 film Substances 0.000 description 9
- 239000011810 insulating material Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000009413 insulation Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 238000002329 infrared spectrum Methods 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003574 free electron Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000005462 imide group Chemical group 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/13—Energy storage using capacitors
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- Compositions Of Macromolecular Compounds (AREA)
Abstract
A preparation method and application of a polyetherimide-tris (2-hydroxyethyl) isocyanurate blend type film relate to the technical field of composite film preparation. The invention aims to solve the problem that the traditional composite material film cannot have both high dielectric constant and high breakdown strength. The invention relates to a preparation method of a high dielectric and high insulating PEI particle and tri (2-hydroxyethyl) isocyanurate blend film, which is prepared by dissolving PEI particles and tri (2-hydroxyethyl) isocyanurate powder in N-methylpyrrolidone in different mass ratios to prepare a mixed solution, coating the mixed solution and then drying the coated film. The preparation equipment has the advantages of simple process, easy implementation, low cost, environmental protection and no pollution, and provides a good strategy for developing advanced polymer capacitors. The invention can obtain a preparation method and application of a polyetherimide-tris (2-hydroxyethyl) isocyanurate blend type film.
Description
Technical Field
The invention relates to the technical field of composite film preparation, in particular to a preparation method and application of a polyetherimide-tris (2-hydroxyethyl) isocyanurate blended film.
Background
The modern society continues to rely on increased levels of electricity, and the scale and complexity of electronic and electrical systems are rapidly expanding, including many areas of power transmission, telecommunications equipment, electric vehicles, and renewable energy systems, where efficient operation and reliability of these systems place greater demands on electrically insulating materials. Insulating materials play a critical role in electronic and electrical systems and they are used to isolate conductive parts to prevent electrical problems such as current leakage, arcing, electrical heating problems and short circuits, the quality and performance of the insulating materials directly affecting the reliability and safety of the system. Polymer dielectric films are favored for their excellent electrical insulating properties, high dielectric constant and low electrical conductivity. In addition, they are generally lighter and easier to process than conventional insulating materials such as porcelain and glass, thereby improving manufacturing efficiency. In some special applications, such as high voltage power equipment, high frequency electronic components, and high temperature environments, insulating materials with high dielectric constants, high breakdown strength, and low electrical conductivity are needed. Polymer dielectric films are widely used in these fields due to their excellent properties. In order to improve the properties of polymer dielectric films, researchers have begun to introduce organic compounds as modifiers. These organic compounds have unique electrical insulating properties that can improve dielectric constants, dielectric losses, and other critical characteristics to meet demanding applications.
Disclosure of Invention
The invention aims to solve the problem that the traditional composite material film cannot have both high dielectric constant and high breakdown strength, and provides a preparation method and application of a polyetherimide-tris (2-hydroxyethyl) isocyanurate blend film.
The preparation method of the polyetherimide-tris (2-hydroxyethyl) isocyanurate blend type film comprises the following steps:
step 1: adding polyetherimide particles and tris (2-hydroxyethyl) isocyanurate powder into an N-methylpyrrolidone solution, and mechanically stirring at the temperature of 50-80 ℃ until the polyetherimide particles and the tris (2-hydroxyethyl) isocyanurate powder are uniformly mixed to obtain a mixed solution;
step 2: uniformly coating the mixed solution obtained in the step 1 on one surface of the pretreated substrate, then carrying out gradient heating and heat preservation on the substrate, cooling to room temperature after finishing heat preservation, and peeling the film to obtain the polyetherimide-tris (2-hydroxyethyl) isocyanurate blend film, wherein the tris (2-hydroxyethyl) isocyanurate powder accounts for 0.5%, 1% or 2% of the total mass of the polyetherimide particles and the tris (2-hydroxyethyl) isocyanurate powder.
The application of the polyetherimide-tris (2-hydroxyethyl) isocyanurate blend type film in the super capacitor.
The invention has the beneficial effects that:
(1) The invention relates to a preparation method of a high dielectric and high insulating PEI particle and tri (2-hydroxyethyl) isocyanurate blend film, which is prepared by dissolving PEI particles and tri (2-hydroxyethyl) isocyanurate powder in N-methylpyrrolidone in different mass ratios to prepare a mixed solution, coating the mixed solution and then drying the coated film. The composite material requires high breakdown strength according to insulation properties. The pure PEI film has high breakdown strength, while the tri (2-hydroxyethyl) isocyanurate has a certain degree of self-repairing capability and can absorb a certain degree of impact energy, and when the pure PEI film faces high voltage impact, the pure PEI film can maintain all or most of the original structure, so that the doped composite film has the improvement of the breakdown strength compared with the pure PEI film. Therefore, the composite material has dielectric constant and high breakdown strength, and the improvement of insulating property is also necessary.
(2) The PEI particle and tris (2-hydroxyethyl) isocyanurate blend film prepared by the process has excellent dielectric property, breakdown property and energy storage property, provides a new material for high-performance super capacitors, and can be widely applied to advanced fields such as electric, electronic and new energy automobiles. The preparation equipment has the advantages of simple process, easy implementation, low cost, environmental protection and no pollution, and provides a good strategy for developing advanced polymer capacitors.
The invention can obtain a preparation method and application of a polyetherimide-tris (2-hydroxyethyl) isocyanurate blend type film.
Drawings
FIG. 1 is a test infrared spectrum of a prepared pure PEI film and a PEI and tris (2-hydroxyethyl) isocyanurate composite film, wherein a represents the PEI film in comparative example 1, b represents a composite film of 0.5% tris (2-hydroxyethyl) isocyanurate component, c represents a composite film of 1% tris (2-hydroxyethyl) isocyanurate component, d represents a composite film of 2% tris (2-hydroxyethyl) isocyanurate component;
FIG. 2 is a graph of the direct current breakdown Weibull plot of the prepared pure PEI film and PEI and tris (2-hydroxyethyl) isocyanurate composite film, wherein ∈ represents the PEI film of comparative example 1, the composite film of 0.5% tris (2-hydroxyethyl) isocyanurate component, the composite film of 1% tris (2-hydroxyethyl) isocyanurate component, and the composite film of 2% tris (2-hydroxyethyl) isocyanurate component;
FIG. 3 shows the results of dielectric constant tests of the prepared pure PEI film and PEI and tris (2-hydroxyethyl) isocyanurate composite film, wherein ∈ represents the PEI film in comparative example 1, +.;
FIG. 4 shows the dielectric loss test results of the prepared pure PEI film and PEI and tris (2-hydroxyethyl) isocyanurate composite film, wherein ∈ represents the PEI film in comparative example 1, +.;
FIG. 5 shows the electron microscopic image results of the prepared pure PEI film and PEI and tris (2-hydroxyethyl) isocyanurate composite film, wherein ∈ represents the PEI film in comparative example 1, +..
Detailed Description
The first embodiment is as follows: the preparation method of the polyetherimide-tris (2-hydroxyethyl) isocyanurate blend type film comprises the following steps:
step 1: adding polyetherimide particles and tris (2-hydroxyethyl) isocyanurate powder into an N-methylpyrrolidone solution, and mechanically stirring at the temperature of 50-80 ℃ until the polyetherimide particles and the tris (2-hydroxyethyl) isocyanurate powder are uniformly mixed to obtain a mixed solution;
step 2: uniformly coating the mixed solution obtained in the step 1 on one surface of the pretreated substrate, then carrying out gradient heating and heat preservation on the substrate, cooling to room temperature after finishing heat preservation, and peeling the film to obtain the polyetherimide-tris (2-hydroxyethyl) isocyanurate blend film, wherein the tris (2-hydroxyethyl) isocyanurate powder accounts for 0.5%, 1% or 2% of the total mass of the polyetherimide particles and the tris (2-hydroxyethyl) isocyanurate powder.
The beneficial effect of this embodiment is:
(1) The preparation method of the high-dielectric and high-insulation PEI particle and tris (2-hydroxyethyl) isocyanurate blended film comprises the steps of dissolving PEI particles and tris (2-hydroxyethyl) isocyanurate powder in N-methylpyrrolidone in different mass ratios to prepare a mixed solution, coating the mixed solution, and drying the coated film. The composite material requires high breakdown strength according to insulation properties. The pure PEI film has high breakdown strength, while the tri (2-hydroxyethyl) isocyanurate has a certain degree of self-repairing capability and can absorb a certain degree of impact energy, and when the pure PEI film faces high voltage impact, the pure PEI film can maintain all or most of the original structure, so that the doped composite film has the improvement of the breakdown strength compared with the pure PEI film. The composite material has dielectric constant and high breakdown strength, and the improvement of insulating property is also necessary.
(2) The PEI particle and tris (2-hydroxyethyl) isocyanurate blend film prepared by the process of the embodiment has excellent dielectric property, breakdown property and energy storage property, provides a new material for high-performance super capacitors, and can be widely applied to advanced fields such as electric, electronic and new energy automobiles. The preparation equipment of the embodiment has simple process, easy implementation, low cost, environmental protection and no pollution, and provides a good strategy for developing advanced polymer capacitors.
The second embodiment is as follows: the present embodiment differs from the specific embodiment in that: the ratio of the total mass of polyetherimide particles and tris (2-hydroxyethyl) isocyanurate powder to the volume of the N-methylpyrrolidone solution in step 1 is (1.75 to 1.85) g: (9.5-10.5) mL.
The other steps are the same as in the first embodiment.
And a third specific embodiment: the present embodiment differs from the first or second embodiment in that: in the step 1, the mixture is mechanically stirred for 10 to 16 hours at the temperature of 50 to 80 ℃.
Other steps are the same as those of the first or second embodiment.
The specific embodiment IV is as follows: one difference between this embodiment and the first to third embodiments is that: the stirring speed in the step 1 is 200-400 r/min.
Other steps are the same as those of the first to third embodiments.
Fifth embodiment: one to four differences between the present embodiment and the specific embodiment are: the pretreated substrate in step 2 is processed according to the following steps: the method comprises the steps of firstly cleaning a substrate with water with detergent for 3-5 times, then cleaning with clear water for 3-5 times, then cleaning with absolute ethyl alcohol for 3-5 times, and finally drying by a blower to obtain a pretreated substrate.
Other steps are the same as those of the first to fourth embodiments.
Specific embodiment six: the present embodiment differs from the first to fifth embodiments in that: the substrate is a glass plate.
Other steps are the same as those of the first to fifth embodiments.
Seventh embodiment: one difference between the present embodiment and the first to sixth embodiments is that: gradient heating and heat preservation in the step 2: the substrate is placed in a blast oven, dried for 10 to 16 hours at the temperature of 50 to 80 ℃, transferred into a vacuum oven, and continuously dried for 10 to 16 hours at the temperature of 80 to 100 ℃.
Other steps are the same as those of embodiments one to six.
Eighth embodiment: one difference between the present embodiment and the first to seventh embodiments is that: and 2, placing the substrate in deionized water to strip the film.
Other steps are the same as those of embodiments one to seven.
Detailed description nine: one of the differences between this embodiment and the first to eighth embodiments is: the thickness of the polyetherimide-tri (2-hydroxyethyl) isocyanurate blend type film is 10-15 mu m.
Other steps are the same as those of embodiments one to eight.
Detailed description ten: the application of the polyetherimide-tris (2-hydroxyethyl) isocyanurate blend type film in the super capacitor is provided.
The following examples are used to verify the benefits of the present invention:
example 1: the preparation method of the polyetherimide-tris (2-hydroxyethyl) isocyanurate blend type film comprises the following steps:
step 1: 1.8g of polyetherimide particles and 0.009g of tris (2-hydroxyethyl) isocyanurate powder are added into 10mL of N-methylpyrrolidone solution, and the mixture is mechanically stirred for 12 hours at a stirring speed of 350r/min under the temperature condition of 50 ℃ until the mixture is uniformly mixed, so as to obtain a mixed solution;
the glass plate is firstly washed 5 times by water with detergent, then washed 5 times by clean water, then washed 5 times by absolute ethyl alcohol, and finally dried by a blower to obtain the pretreated glass plate.
Step 2: uniformly coating the mixed solution obtained in the step 1 on one surface of the pretreated glass plate, then placing the glass plate in a blast oven, drying for 12 hours at the temperature of 60 ℃, transferring the glass plate into a vacuum oven, continuously drying for 12 hours at the temperature of 80 ℃, and discharging bubbles; cooling to room temperature after heat preservation is finished, and putting the substrate into deionized water to strip the film to obtain a polyetherimide-tris (2-hydroxyethyl) isocyanurate blend type film with the thickness of 15 mu m; the tris (2-hydroxyethyl) isocyanurate powder accounts for 0.5% of the total mass of the polyetherimide particles and the tris (2-hydroxyethyl) isocyanurate powder.
Example 2: in this example, the mass ratio of tris (2-hydroxyethyl) isocyanurate powder was 1%, and the other experimental conditions were the same as in example 1.
Example 3: in this example, the mass ratio of tris (2-hydroxyethyl) isocyanurate powder was 2%, and the other experimental conditions were the same as in example 1.
Comparative example 1: preparing PEI film;
step one: the ratio of the mass of PEI to the volume of the N-methylpyrrolidone solution was 1.8g:10mL of PEI and N-methylpyrrolidone solution are respectively taken; PEI is added to the N-methylpyrrolidone solution and mechanically stirred at a temperature of 50℃for 12 hours to give a PEI solution.
Step two, putting the coated glass plate into a blast oven at 60 ℃ for heating and heat preservation for 12 hours;
transferring the heated glass plate into a vacuum oven, and continuously heating and preserving heat at 80 ℃ in a vacuum state, wherein the time is 12 hours, and bubbling is carried out. The membrane was peeled off with deionized water after removal.
FIG. 1 is a test infrared spectrum of the prepared pure PEI film and PEI and tris (2-hydroxyethyl) isocyanurate composite film. Wherein a represents the PEI film in comparative example 1, b represents the composite film of 0.5% of tris (2-hydroxyethyl) isocyanurate component, c represents the composite film of 1% of tris (2-hydroxyethyl) isocyanurate component, and d represents the composite film of 2% of tris (2-hydroxyethyl) isocyanurate component.
As shown in FIG. 1, the wave number is 1776cm -1 There is a strong transmission peak, PEIC=O stretching vibration absorption peak of (C=O) corresponding to carbon-oxygen double bond in imide structure at 1326cm -1 And 1562cm -1 Is aromatic ring in PEI, and is further 2260cm -1 The absorption peak at 3500cm represents C.ident.N of tris (2-hydroxyethyl) isocyanurate -1 The absorption peak at this point represents the-OH of tris (2-hydroxyethyl) isocyanurate and no new peak appears in the composite film, which demonstrates that PEI and tris (2-hydroxyethyl) isocyanurate are only physically synthesized and do not produce new species.
FIG. 2 is a graph of the direct current breakdown Weibull plot of the prepared pure PEI film and PEI and tris (2-hydroxyethyl) isocyanurate composite film, wherein ∈ represents the PEI film of comparative example 1, and is a composite film of 0.5% tris (2-hydroxyethyl) isocyanurate component, and a composite film of 1% tris (2-hydroxyethyl) isocyanurate component, and a composite film of 2% tris (2-hydroxyethyl) isocyanurate component.
As shown in fig. 2, the films of 0.5%, 1% and 2% tris (2-hydroxyethyl) isocyanurate components had somewhat improved breakdown strength over the pure films. When the content is 0.5 percent and 1 percent is compared with 2 percent, wherein the 2% breakdown field strength is highest and reaches 648.52MV mm -1 The breakdown strength of the film is improved by 44.5 percent compared with that of the pure PEI film.
FIG. 3 shows the dielectric constant test results of the prepared pure PEI film and PEI and tris (2-hydroxyethyl) isocyanurate composite film, wherein ∈ represents the PEI film in comparative example 1, and ∈ represents the composite film of 0.5% tris (2-hydroxyethyl) isocyanurate component, and ∈ represents the composite film of 1% tris (2-hydroxyethyl) isocyanurate component, and ∈ represents the composite film of 2% tris (2-hydroxyethyl) isocyanurate component.
As shown in fig. 3, the film dielectric constants of the 0.5%, 1% and 2% tris (2-hydroxyethyl) isocyanurate components were all greatly improved over the pure PC film, with 2% improvement being most pronounced and the degree of improvement being greatest, with the three components exhibiting a tendency to increase with increasing tris (2-hydroxyethyl) isocyanurate content. At 1Hz, the dielectric constant of the 2% component is close to 5, since the dielectric constants of PEI and tris (2-hydroxyethyl) isocyanurate are not low; meanwhile, polyetherimide generally has higher electron affinity, and after tri (2-hydroxyethyl) isocyanurate contains isocyanate groups which are mixed, the existence of the groups can enhance the electron affinity and polarity of the whole material, so that the dielectric constant of the composite material is synergistically improved.
FIG. 4 shows the dielectric loss test results of the prepared pure PEI film and PEI and tris (2-hydroxyethyl) isocyanurate composite film, wherein ∈ represents the PEI film in comparative example 1, +..
As shown in fig. 4, the composite film also has very low dielectric loss due to the low loss characteristics of PEI itself, which is below 0.005 at a frequency of 1 kHz.
FIG. 5 is the conductivity test results of the prepared pure PEI film and PEI and tris (2-hydroxyethyl) isocyanurate composite film, wherein ∈ represents the PEI film in comparative example 1, +..
As shown in fig. 5, since PEI is a good insulating material, tris (2-hydroxyethyl) isocyanurate also has excellent insulating properties. By combining these two materials, it is helpful to prevent the flow of current and reduce the electrical conductivity, thereby forming a composite material with more excellent insulation properties. More importantly, hydrogen bond interaction and the like exist between PEI and tri (2-hydroxyethyl) isocyanurate, which is favorable for forming an intermolecular ordered structure and reducing movement of free electrons. Thus, the formation of the ordered structure may reduce the mobility of electrons in the material, thereby reducing the conductivity.
Claims (10)
1. The preparation method of the polyetherimide-tris (2-hydroxyethyl) isocyanurate blend type film is characterized by comprising the following steps of:
step 1: adding polyetherimide particles and tris (2-hydroxyethyl) isocyanurate powder into an N-methylpyrrolidone solution, and mechanically stirring at the temperature of 50-80 ℃ until the polyetherimide particles and the tris (2-hydroxyethyl) isocyanurate powder are uniformly mixed to obtain a mixed solution;
step 2: uniformly coating the mixed solution obtained in the step 1 on one surface of the pretreated substrate, then carrying out gradient heating and heat preservation on the substrate, cooling to room temperature after finishing heat preservation, and peeling the film to obtain the polyetherimide-tris (2-hydroxyethyl) isocyanurate blend film, wherein the tris (2-hydroxyethyl) isocyanurate powder accounts for 0.5%, 1% or 2% of the total mass of the polyetherimide particles and the tris (2-hydroxyethyl) isocyanurate powder.
2. The method for producing a polyetherimide-tris (2-hydroxyethyl) isocyanurate blended film according to claim 1, wherein the ratio of the total mass of polyetherimide particles and tris (2-hydroxyethyl) isocyanurate powder to the volume of the N-methylpyrrolidone solution in step 1 is (1.75 to 1.85) g: (9.5-10.5) mL.
3. The method for preparing a polyetherimide-tris (2-hydroxyethyl) isocyanurate blended film according to claim 1, wherein the polyetherimide-tris (2-hydroxyethyl) isocyanurate blended film is mechanically stirred at a temperature of 50-80 ℃ for 10-16 h in step 1.
4. The method for producing a polyetherimide-tris (2-hydroxyethyl) isocyanurate blended film according to claim 1 or 3, wherein the stirring speed in step 1 is 200 to 400r/min.
5. The method for preparing the polyetherimide-tris (2-hydroxyethyl) isocyanurate blend film according to claim 1, wherein the pretreated substrate in step 2 is treated by the following steps: the method comprises the steps of firstly cleaning a substrate with water with detergent for 3-5 times, then cleaning with clear water for 3-5 times, then cleaning with absolute ethyl alcohol for 3-5 times, and finally drying by a blower to obtain a pretreated substrate.
6. The method for producing a polyetherimide-tris (2-hydroxyethyl) isocyanurate blend film according to claim 1 or 5, wherein the substrate is a glass plate.
7. The method for preparing the polyetherimide-tris (2-hydroxyethyl) isocyanurate blend film according to claim 1, wherein the gradient heating and heat preservation in the step 2: the substrate is placed in a blast oven, dried for 10 to 16 hours at the temperature of 50 to 80 ℃, transferred into a vacuum oven, and continuously dried for 10 to 16 hours at the temperature of 80 to 100 ℃.
8. The method for preparing a polyetherimide-tris (2-hydroxyethyl) isocyanurate blend film according to claim 1, wherein the substrate is placed in deionized water to peel the film.
9. The method for preparing a polyetherimide-tris (2-hydroxyethyl) isocyanurate blend film according to claim 1, wherein the thickness of the polyetherimide-tris (2-hydroxyethyl) isocyanurate blend film is 10-15 μm.
10. The use of a polyetherimide-tris (2-hydroxyethyl) isocyanurate blend film according to any one of claims 1 to 9, wherein the polyetherimide-tris (2-hydroxyethyl) isocyanurate blend film is used in a supercapacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311565807.5A CN117624670B (en) | 2023-11-22 | Preparation method and application of polyetherimide-tris (2-hydroxyethyl) isocyanurate blend type film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311565807.5A CN117624670B (en) | 2023-11-22 | Preparation method and application of polyetherimide-tris (2-hydroxyethyl) isocyanurate blend type film |
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| Publication Number | Publication Date |
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| CN117624670A true CN117624670A (en) | 2024-03-01 |
| CN117624670B CN117624670B (en) | 2024-05-31 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4429073A (en) * | 1980-09-23 | 1984-01-31 | General Electric Company | Polyetherimide compositions and processes for production |
| JP2022029136A (en) * | 2020-08-04 | 2022-02-17 | 信越ポリマー株式会社 | Conductive polymer-containing liquid and method for producing the same, and conductive film and method for producing the same |
| CN116675983A (en) * | 2023-06-20 | 2023-09-01 | 哈尔滨理工大学 | Preparation method and application of all-organic polyetherimide-fluorene polyester blended energy storage composite material |
| US20230323032A1 (en) * | 2020-12-18 | 2023-10-12 | Tsinghua University | High-temperature energy storage hybrid polyetherimide dielectric thin film, preparation method therefor, and use thereof |
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4429073A (en) * | 1980-09-23 | 1984-01-31 | General Electric Company | Polyetherimide compositions and processes for production |
| JP2022029136A (en) * | 2020-08-04 | 2022-02-17 | 信越ポリマー株式会社 | Conductive polymer-containing liquid and method for producing the same, and conductive film and method for producing the same |
| US20230323032A1 (en) * | 2020-12-18 | 2023-10-12 | Tsinghua University | High-temperature energy storage hybrid polyetherimide dielectric thin film, preparation method therefor, and use thereof |
| CN116675983A (en) * | 2023-06-20 | 2023-09-01 | 哈尔滨理工大学 | Preparation method and application of all-organic polyetherimide-fluorene polyester blended energy storage composite material |
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