CN109593271A - A method of polypropylene film disruptive field intensity is improved based on benzil - Google Patents
A method of polypropylene film disruptive field intensity is improved based on benzil Download PDFInfo
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- CN109593271A CN109593271A CN201811445278.4A CN201811445278A CN109593271A CN 109593271 A CN109593271 A CN 109593271A CN 201811445278 A CN201811445278 A CN 201811445278A CN 109593271 A CN109593271 A CN 109593271A
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- China
- Prior art keywords
- benzil
- sample
- field intensity
- polypropylene film
- disruptive field
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- 239000004743 Polypropylene Substances 0.000 title claims abstract description 49
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 33
- -1 polypropylene Polymers 0.000 title claims abstract description 32
- WURBFLDFSFBTLW-UHFFFAOYSA-N benzil Chemical compound C=1C=CC=CC=1C(=O)C(=O)C1=CC=CC=C1 WURBFLDFSFBTLW-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000002131 composite material Substances 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 12
- 230000015556 catabolic process Effects 0.000 claims abstract description 10
- 239000008187 granular material Substances 0.000 claims abstract description 7
- 239000012535 impurity Substances 0.000 claims abstract description 4
- 238000012360 testing method Methods 0.000 claims abstract description 3
- 150000001336 alkenes Chemical class 0.000 claims description 2
- 239000000155 melt Substances 0.000 claims description 2
- 238000000748 compression moulding Methods 0.000 claims 1
- 239000003990 capacitor Substances 0.000 description 5
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 239000003989 dielectric material Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 125000002252 acyl group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- 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
- C08K5/04—Oxygen-containing compounds
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/018—Dielectrics
- H01G4/06—Solid dielectrics
- H01G4/14—Organic dielectrics
- H01G4/18—Organic dielectrics of synthetic material, e.g. derivatives of cellulose
-
- 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
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Materials Engineering (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
The invention discloses a kind of methods for improving polypropylene film disruptive field intensity based on benzil, the following steps are included: dry PP GRANULES and benzil are sufficiently mixed in mixer by (1) according to the mass ratio of 99.5:0.5, PP composite material is obtained；Meanwhile control group is set, i.e., the polypropylene material of benzil is not added.(2) PP composite material is pressed into 90 × 90mm of side length with vulcanizing press, with a thickness of 80 μm of sample.(3) sample is dried in vacuo 24 hours, excludes impurity in sample sufficiently.(4) dc breakdown test is carried out to sample using ball plate electrode；(5) the polypropylene material sample of control group is made to repeat step (2)-(4).It is demonstrated experimentally that this method can effectively improve the disruptive field intensity of polypropylene film.
Description
Technical field
The present invention relates to a kind of disruptive field intensity methods for promoting condenser dielectric alkene film, and in particular to one kind is even based on benzene
The method of acyl raising polypropylene film disruptive field intensity.
Background technique
Direct current capacitors plays irreplaceable role in current electric system, towards lightness, miniaturization
Direction is developed, and the progress of dielectric material is the key that its development.It is thin that the solid dielectric material of power capacitor is essentially polypropylene
Film, the presence of impurity introduced in process of production due to polypropylene film etc. " electric weakness ", leads to the breakdown of polypropylene film
Field strength decline.Dielectric breakdown is an important factor for causing direct current capacitors to fail under DC voltage.Therefore, research reduces " electric weak
Point " transports the service life of power capacitor and the safety of electric system the method that polypropylene film disruptive field intensity influences
Row is significant.
In the research of recent decades, the disruptive field intensity expansion that some scholars improve polymer using nanometer polymer is ground
Study carefully.However, how to ensure that nano particle in the material evenly dispersed is the problem that can not effectively solve always.Nanometer
The reunion of grain in the material, can seriously destroy polyacrylic insulation characterisitic.
Summary of the invention
Purpose of the invention is to overcome the shortcomings in the prior art, good based on benzil and polypropylene material
Compatibility provides a kind of method for improving polypropylene film disruptive field intensity based on benzil, it is demonstrated experimentally that this method can be mentioned effectively
The disruptive field intensity of high polypropylene film.
The purpose of the present invention is what is be achieved through the following technical solutions:
A method of polypropylene film disruptive field intensity is improved based on benzil, comprising the following steps:
(1) dry PP GRANULES and benzil are sufficiently mixed in mixer according to the mass ratio of 99.5:0.5,
Obtain PP composite material；Meanwhile control group is set, i.e., the polypropylene material of benzil is not added.
(2) PP composite material is pressed into 90 × 90mm of side length with vulcanizing press, with a thickness of 80 μm of sample.
(3) sample is dried in vacuo 24 hours, excludes impurity in sample sufficiently.
(4) dc breakdown test is carried out to sample using ball plate electrode；
(5) the polypropylene material sample of control group is made to repeat step (2)-(4).
Compared with prior art, the beneficial effects brought by the technical solution of the present invention are as follows:
The method of the present invention can significantly improve the disruptive field intensity of polypropylene film, to raising capacitor working voltage and electricity
The safe and stable operation of container is of great significance.
Detailed description of the invention
Fig. 1 show benzil chemical formula.
Fig. 2 show polypropylene composite materials sample dc breakdown field strength Weibull distribution figure.
Fig. 3 show polypropylene plaques dc breakdown field strength Weibull distribution figure.
Specific embodiment
The invention will be further described with reference to the accompanying drawing.
The method for improving polypropylene film disruptive field intensity based on benzil, comprising the following steps:
1. by dry PP GRANULES and benzil (chemical formula is shown in Fig. 1) according to the mass ratio of 99.5:0.5 in mixer
In be sufficiently mixed 10 minutes, 180 DEG C of temperature, banbury rotating speed 30r/min, obtain PP composite material.
2. control group is arranged, dry PP GRANULES is melted to mixing 10 minutes in mixer, it is 180 DEG C of temperature, close
Mill revolving speed 30r/min obtains polypropylene material.
3. weighing 5 grams of PP composite materials to be placed in vulcanizing press, 180 DEG C are preheated 10 minutes, answer polypropylene
Condensation material sufficiently melts；Vulcanizing press is forced into 30MPa, while temperature is increased to 190 DEG C, suppresses 10 minutes；Close plate
Vulcanize electromechanical source, is taken out after maintaining pressure is constant to make sample cooled to room temperature.Sample 90 × 90mm of side length, 80 μm of thickness.
4. sample is placed on temperature to be set as in 80 DEG C of vacuum tank, it is dried in vacuo 24 hours, abundant despumation.
5. calculating breakdown field according to breakdown voltage and sample thickness with the dc breakdown voltage of ball plate electrode measurement sample
By force.
6. making control group polypropylene plaques repeating step 3-5.Polypropylene composite materials sample, control group polypropylene plaques it is straight
Stream disruptive field intensity Weibull distribution figure is shown in Fig. 2 and Fig. 3.
The present invention is not limited to embodiments described above.Above the description of specific embodiment is intended to describe and say
Bright technical solution of the present invention, the above mentioned embodiment is only schematical, is not restrictive.This is not being departed from
In the case of invention objective and scope of the claimed protection, those skilled in the art may be used also under the inspiration of the present invention
The specific transformation of many forms is made, within these are all belonged to the scope of protection of the present invention.
Claims (4)
1. a kind of method for improving polypropylene film disruptive field intensity based on benzil, which comprises the following steps:
(1) dry PP GRANULES and benzil are sufficiently mixed in mixer according to the mass ratio of 99.5:0.5, are obtained
PP composite material；
(2) control group is set, i.e., does not add the polypropylene material of benzil；
(3) PP composite material is pressed into 90 × 90mm of side length with vulcanizing press, with a thickness of 80 μm of sample；
(4) sample is placed on temperature to be set as in 80 DEG C of vacuum tank, is dried in vacuo 24 hours, exclude impurity in sample；
(5) dc breakdown test is carried out to sample using ball plate electrode；
(6) polypropylene material of control group is made to repeat step (3)-(5).
2. a kind of method for improving polypropylene film disruptive field intensity based on benzil according to claim 1, which is characterized in that
PP GRANULES and benzil are sufficiently mixed 10-20 minutes in mixer in step (1), and 170-180 DEG C of temperature, mixer turns
Speed is 30r/min.
3. a kind of method for improving polypropylene film disruptive field intensity based on benzil according to claim 1, which is characterized in that
In step (2) when setting control group, dry PP GRANULES is melted to mixing 10 minutes in mixer, it is 180 DEG C of temperature, close
Mill revolving speed 30r/min obtains polypropylene material.
4. a kind of method for improving polypropylene film disruptive field intensity based on benzil according to claim 1, which is characterized in that
5-10 grams of PP composite material is weighed in step (3) to be placed in vulcanizing press, 180 DEG C preheating 10-20 minutes, make poly- third
Alkene composite material sufficiently melts；Vulcanizing press is forced into 28-30MPa, while temperature is increased to 190 DEG C, suppresses 10 minutes；It closes
Compression molding electromechanical source is closed, is taken out after maintaining pressure is constant to make sample cooled to room temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811445278.4A CN109593271B (en) | 2018-11-29 | 2018-11-29 | Method for improving breakdown field strength of polypropylene film based on benzil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811445278.4A CN109593271B (en) | 2018-11-29 | 2018-11-29 | Method for improving breakdown field strength of polypropylene film based on benzil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109593271A true CN109593271A (en) | 2019-04-09 |
| CN109593271B CN109593271B (en) | 2021-07-06 |
Family
ID=65959253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811445278.4A Active CN109593271B (en) | 2018-11-29 | 2018-11-29 | Method for improving breakdown field strength of polypropylene film based on benzil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109593271B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112768235A (en) * | 2020-12-23 | 2021-05-07 | 天津大学 | Method for optimizing crystallization morphology of polypropylene film for capacitor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103965543A (en) * | 2014-05-21 | 2014-08-06 | 哈尔滨理工大学 | Crosslinkable polyethylene insulation material for high-voltage direct-current cable |
| CN104641424A (en) * | 2012-09-17 | 2015-05-20 | 沙特基础全球技术有限公司 | Polymer nanocomposites for electronic applications |
| US20180061582A1 (en) * | 2016-02-12 | 2018-03-01 | Capcitor Sciences Incorporated | Furuta and para-furuta polymer formulations and capacitors |
| CN108395601A (en) * | 2018-02-27 | 2018-08-14 | 天津大学 | The method that benzil derivatives inhibit high voltage direct current cable space charge |
-
2018
- 2018-11-29 CN CN201811445278.4A patent/CN109593271B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104641424A (en) * | 2012-09-17 | 2015-05-20 | 沙特基础全球技术有限公司 | Polymer nanocomposites for electronic applications |
| CN103965543A (en) * | 2014-05-21 | 2014-08-06 | 哈尔滨理工大学 | Crosslinkable polyethylene insulation material for high-voltage direct-current cable |
| US20180061582A1 (en) * | 2016-02-12 | 2018-03-01 | Capcitor Sciences Incorporated | Furuta and para-furuta polymer formulations and capacitors |
| CN108395601A (en) * | 2018-02-27 | 2018-08-14 | 天津大学 | The method that benzil derivatives inhibit high voltage direct current cable space charge |
Non-Patent Citations (1)
| Title |
|---|
| HUI ZHANG,ET AL: ""Theoretical study on the tailored side-chain architecture of benzil-like voltage stabilizers for enhanced dielectric strength of cross-linked polyethylene"", 《RSC ADVANCES》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112768235A (en) * | 2020-12-23 | 2021-05-07 | 天津大学 | Method for optimizing crystallization morphology of polypropylene film for capacitor |
| CN112768235B (en) * | 2020-12-23 | 2022-05-17 | 天津大学 | Method for optimizing crystallization morphology of polypropylene film for capacitor |
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| Publication number | Publication date |
|---|---|
| CN109593271B (en) | 2021-07-06 |
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