CN106245460A - A kind of nano silicon carbide Si modification insulating paper and its preparation method and application - Google Patents
A kind of nano silicon carbide Si modification insulating paper and its preparation method and application Download PDFInfo
- Publication number
- CN106245460A CN106245460A CN201610709584.9A CN201610709584A CN106245460A CN 106245460 A CN106245460 A CN 106245460A CN 201610709584 A CN201610709584 A CN 201610709584A CN 106245460 A CN106245460 A CN 106245460A
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- China
- Prior art keywords
- silicon carbide
- insulating paper
- modification
- parts
- nano silicon
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Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D1/00—Methods of beating or refining; Beaters of the Hollander type
- D21D1/02—Methods of beating; Beaters of the Hollander type
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F5/00—Dryer section of machines for making continuous webs of paper
- D21F5/14—Drying webs by applying vacuum
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/04—Addition to the pulp; After-treatment of added substances in the pulp
- D21H23/06—Controlling the addition
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/06—Insulating conductors or cables
Abstract
The invention discloses a kind of nano silicon carbide Si modification insulating paper and its preparation method and application, obtain nano silicon carbide Si modification insulating paper by using nano silicon carbide granulate that paper pulp is modified.Compared with prior art, have the advantage that insulating paper is modified by the nano silicon carbide Si modification insulating paper that (1) the method for the invention prepares because introducing nanometer silicon carbide, and there is between nanometer silicon carbide and cellulose good combination energy, increase the contact interface between itself and cellulose, in interface, nanometer silicon carbide is trapped into the effect to carrier in the constraint effect of fiber semi-polarity group and interface, brings more excellent power frequency to insulating paper and punctures and dielectric properties；(2) present invention prepares nano silicon carbide Si modification insulating paper and there is good mechanical property and heat dispersion.
Description
Technical field
The invention belongs to transposed conductor core packaging material field, relate to a kind of insulating paper, particularly relate to a kind of nano-sized carbon
SiClx modification insulating paper and its preparation method and application.
Background technology
Power transformer is the core component in power system, is responsible for the vital task of power system electric energy transmission.Oil
The interior insulation of immersion transformator is the compound inslation formed with insulating paper and transformer oil.Continuous recently as electric pressure
Improve, more and more higher to the requirement of insulation in transformator.Therefore the compound inslation that raising insulating paper and transformer oil are formed
Insulating properties there is highly important practical significance.
Carry out substantial amounts of research at present both at home and abroad and improved the insulating properties of transformer oil, as added nanoparticle in oil
Son, use each vegetable oil, use the miscella etc. of each vegetable oil and mineral oil, achieve many achievements, and to raising
The study on the modification of native cellulose insulating paper electric property is the most rarely found.
From the nineties in 19th century, native cellulose insulating paper is just widely used in oil-immersed type power equipment, although
Electrically insulating material has had bigger change and progress, but cellulose insulation paper has, and price is low, mechanical strength is big, size is easily controlled
The feature such as excellent electrical properties, environmental friendliness after system, immersion oil, is the first-selected insulant of oil-immersed type transformer.In traditional papermaking
In order to improve the various performances of paper in the middle of industry, during papermaking, add different inorganic fillers to strengthen the property of paper
Can, but little to the influence research of insulating paper insulating properties about inorganic filler.This is owing to insulating paper is as a kind of extraordinary
Paper, in addition to have the high requirement of comparison to its insulating properties, also has the requirement that comparison is high, and uses traditional its mechanical property
The inorganic particulate of micron level is filled with modification to paper can be substantially reduced the mechanical property of paper.
Along with the development of nanotechnology, the preparation of the inorganic particulate of Nano grade in recent years achieves the biggest development, and
The properties utilizing inorganic nano-particle to carry out enhancing modified polymer also becomes study hotspot in recent years.Nanoparticle seed
Footpath is little, and specific surface area is big, utilizes the polymer-modified mechanics that not only will not reduce material in certain content of nanoparticle
Performance, can make the mechanical property of material increase on the contrary.Therefore the insulating properties of nanometer particle-modified insulating paper are studied again
It is provided with highly important realistic meaning.
In prior art, due to titanium dioxide nano-particle mature preparation process, and compare other nanoparticle prices relatively
Low, it is widely used in the study on the modification of polymer, and achieves preferable effect.Therefore, nano titanium oxide is used by researcher
In the modification of insulating paper, thus improve the power frequency disruptive field intensity of insulating paper, reduce the dielectric constant of insulating paper, dielectric loss
And electrical conductivity.But use merely nano titanium oxide that insulating paper is modified it cannot be guaranteed that the mechanical property of insulating paper is with scattered
Hot property.
Summary of the invention
Present invention solves the technical problem that: in order to overcome the defect of above-mentioned prior art, it is thus achieved that one can improve insulation
The power frequency disruptive field intensity of paper, reduces the dielectric constant of insulating paper, dielectric loss and electrical conductivity, and have good mechanical property and
The insulating paper of heat dispersion, the invention provides a kind of nano silicon carbide Si modification insulating paper and its preparation method and application.
Technical scheme: the preparation method of a kind of nano silicon carbide Si modification insulating paper, comprises the steps of
(1) deliver to paste mill grinding by pulper after being cracked by cardboard, the source of the gas of described fiberizer be 0.3～
Linear speed difference between 0.9MPa, chassis and rotor is 5.5～6.5m/s, voltage is 380～420V, three-phase is 50～60Hz, beats
Slurry pressure is 1.5～3.8kg/cm；
(2) by weight, by nanometer silicon carbide 26～48 parts, nano titanium oxide 13～26 parts, nanometer sodium silicate 9～
17 parts, coupling agent kh-570 8～19 parts, sodium hydroxide 9～15 parts, water 32～48 parts of mixing, carry out mechanical agitation by suspension
Dispersion, rotating speed is 4500～6000r/min, stirring 7～12 minutes, then ultrasonic disperse 12～obtain modification liquid in 16 minutes；
(3) modification liquid that step (2) prepares is added in the paper pulp that step (1) prepares, in dissociation device, stir 8～14 points
Clock, being placed in sheet forming apparatus by mixture and making quality is 110～140g/m2, thickness be 0.15～0.26mm l Water Paper base；
(4) hot pressing in hot press sent into by the l Water Paper base that step (3) prepared, hot pressing condition be 22～28MPa, 8～
18 minutes, being subsequently placed in vacuum drying oven and be dried, vacuum is 0.005～0.01MPa, and temperature is 95～112 DEG C, prepares and receives
Rice carborundum modification insulating paper.
Preferably, paste mill grinding, the source of the gas of described fiberizer are delivered to after cardboard is cracked by step (1) by pulper
For the linear speed difference between 0.7MPa, chassis and rotor 6.1m/s, voltage be 400V, three-phase be 56Hz, beating pressure be
3.2kg/cm。
Preferably, in step (2) by weight, by nanometer silicon carbide 43 parts, nano titanium oxide 22 parts, nanometer silicic acid
14 parts of sodium, coupling agent kh-570 13 parts, sodium hydroxide 12 parts, the mixing of 40 parts of water, carry out mechanical agitation dispersion by suspension, turns
Speed is 5500r/min, stirs 10 minutes, then ultrasonic disperse obtains modification liquid in 14 minutes.
Preferably, the modification liquid that step (2) prepares is added in the paper pulp that step (1) prepares by step (3), at dissociation device
Middle stirring 12 minutes, being placed in sheet forming apparatus by mixture and making quality is 125g/m2, thickness be the l Water Paper base of 0.22mm.
Preferably, hot pressing in hot press sent into by l Water Paper base step (3) prepared in step (4), and hot pressing condition is
25MPa, 15 minutes, be subsequently placed in vacuum drying oven be dried, vacuum is 0.008MPa, and temperature is 108 DEG C, prepare nano-sized carbon
SiClx modification insulating paper.
Preferably, in described step (2) particle diameter of nanometer silicon carbide be 25～32nm, the particle diameter of nano titanium oxide be 22
～the particle diameter of 30nm, nanometer sodium silicate is 24～31nm.
The nano silicon carbide Si modification insulating paper that any of the above-described method prepares.
The application in cladding transposed conductor core of the above-mentioned nano silicon carbide Si modification insulating paper.
Beneficial effect: the nano silicon carbide Si modification insulating paper that (1) the method for the invention prepares is because introducing nanometer
Insulating paper is modified by carborundum, and has good combination energy between nanometer silicon carbide and cellulose, increases it with fine
Contact interface between dimension element, in interface, nanometer silicon carbide is right to being trapped in the constraint effect of fiber semi-polarity group and interface
The effect of carrier, brings more excellent power frequency to insulating paper and punctures and dielectric properties；(2) what the present invention prepared receives
Rice carborundum modification insulating paper and there is good mechanical property and heat dispersion.
Detailed description of the invention
Embodiment 1
The preparation method of a kind of nano silicon carbide Si modification insulating paper, comprises the steps of
(1) delivering to paste mill grinding by pulper after being cracked by cardboard, the source of the gas of described fiberizer is 0.3MPa, chassis
And the linear speed difference between rotor is 5.5m/s, voltage is 380V, three-phase is 50Hz, beating pressure is 1.5kg/cm；
(2) by weight, by nanometer silicon carbide 26 parts, nano titanium oxide 13 parts, nanometer sodium silicate 9 parts, coupling agent
KH-570 8 parts, sodium hydroxide 9 parts, the mixing of 32 parts of water, carry out mechanical agitation dispersion by suspension, and rotating speed is 4500r/min, stirs
Mix 7 minutes, then ultrasonic disperse obtains modification liquid in 12 minutes；
(3) modification liquid that step (2) prepares is added in the paper pulp that step (1) prepares, stirs 8 minutes in dissociation device,
Being placed in sheet forming apparatus by mixture and making quality is 110g/m2, thickness be the l Water Paper base of 0.15mm；
(4) hot pressing in hot press sent into by the l Water Paper base that step (3) prepared, hot pressing condition be 22MPa, 8 minutes, so
Being placed in vacuum drying oven and be dried, vacuum is 0.005MPa, and temperature is 95 DEG C, prepares nano silicon carbide Si modification insulating paper.
In described step (2) particle diameter of nanometer silicon carbide be 25nm, the particle diameter of nano titanium oxide be 22nm, nanometer silicic acid
The particle diameter of sodium is 24nm.
Embodiment 2
The preparation method of a kind of nano silicon carbide Si modification insulating paper, comprises the steps of
(1) delivering to paste mill grinding by pulper after being cracked by cardboard, the source of the gas of described fiberizer is 0.7MPa, chassis
And the linear speed difference between rotor 6.1m/s, voltage be 400V, three-phase be 56Hz, beating pressure be 3.2kg/cm；
(2) by weight, by nanometer silicon carbide 43 parts, nano titanium oxide 22 parts, nanometer sodium silicate 14 parts, coupling agent
KH-570 13 parts, sodium hydroxide 12 parts, the mixing of 40 parts of water, carry out mechanical agitation dispersion by suspension, rotating speed be 5500r/min,
Stir 10 minutes, then ultrasonic disperse obtains modification liquid in 14 minutes；
(3) modification liquid that step (2) prepares is added in the paper pulp that step (1) prepares, stirs 12 minutes in dissociation device,
Being placed in sheet forming apparatus by mixture and making quality is 125g/m2, thickness be the l Water Paper base of 0.22mm；
(4) hot pressing in hot press sent into by the l Water Paper base that step (3) prepared, hot pressing condition be 25MPa, 15 minutes,
Being subsequently placed in vacuum drying oven and be dried, vacuum is 0.008MPa, and temperature is 108 DEG C, prepares the insulation of nano silicon carbide Si modification
Paper.
In described step (2) particle diameter of nanometer silicon carbide be 30nm, the particle diameter of nano titanium oxide be 28nm, nanometer silicic acid
The particle diameter of sodium is 27nm.
Embodiment 3
The preparation method of a kind of nano silicon carbide Si modification insulating paper, comprises the steps of
(1) delivering to paste mill grinding by pulper after being cracked by cardboard, the source of the gas of described fiberizer is 0.9MPa, chassis
And the linear speed difference between rotor is 6.5m/s, voltage is 420V, three-phase is 60Hz, beating pressure is 3.8kg/cm；
(2) by weight, by nanometer silicon carbide 48 parts, nano titanium oxide 26 parts, nanometer sodium silicate 17 parts, coupling agent
KH-570 19 parts, sodium hydroxide 15 parts, the mixing of 48 parts of water, carry out mechanical agitation dispersion by suspension, rotating speed be 6000r/min,
Stir 12 minutes, then ultrasonic disperse obtains modification liquid in 16 minutes；
(3) modification liquid that step (2) prepares is added in the paper pulp that step (1) prepares, stirs 14 minutes in dissociation device,
Being placed in sheet forming apparatus by mixture and making quality is 140g/m2, thickness be the l Water Paper base of 0.26mm；
(4) hot pressing in hot press sent into by the l Water Paper base that step (3) prepared, hot pressing condition be 28MPa, 18 minutes,
Being subsequently placed in vacuum drying oven and be dried, vacuum is 0.01MPa, and temperature is 112 DEG C, prepares the insulation of nano silicon carbide Si modification
Paper.
In described step (2) particle diameter of nanometer silicon carbide be 32nm, the particle diameter of nano titanium oxide be 30nm, nanometer silicic acid
The particle diameter of sodium is 31nm.
The performance of the nano silicon carbide Si modification insulating paper preparing embodiment 1～3 detects, and wherein paper is anti-
Zhang Qiangdu measures the AT-L-1 type tensile testing machine using Jinan An Nimaite Instrument Ltd., maximum pull 500N.Root
Measure according to constant rate of extension method in ISO 1924-2:1994, GB/T 12,914 2008, principle: tensile strength test instrument is in constant speed
Under conditions of stretching, the sample of given size is stretched to fracture, measures its tension stress.Sample width 15mm, tensile testing machine presss from both sides
Away from 10cm, rupture time is (20 ± 5) s.
The breakdown voltage test of paper, insulating paper power frequency disruptive field intensity is carried out according to GB/T 1,408 2006, uses No. 25
Mineral oil, as surrounding media, tests 10～20s breakdown strengths of sample when insulating paper boosts continuously.Test transform capacity is
50kVA/50kV, test voltage 220V, the rate of rise is 500V/s.Measure sample quantities 6, last averaged every time.
Test ambient temperature 25 DEG C, relative temperature 50%.
Insulating paper dielectric properties use Concept80 broadband dielectric spectrum testing system (Novocontrol GmbH) test absolutely
Volume conductance in the dielectric spectroscopy of edge paper, frequency domain dielectric loss spectrum and frequency domain；Insulate according to IEC 60093 standard testing simultaneously
Paper direct current volume conductance.The insulating paper of good for leaching oil is taken out from oil, cleans excess surface insulating oil, be placed on two panels diameter
Measure in the middle of the gold plated copper electrode of 4cm.Measuring frequency range is 10-2～107.For guarantee test repeatability, test every time
Test 2～3 times, and in order to get rid of occasionality, what repeated measure used is not that same sample is tested, but to same
The sample 2 of kind of state～carry out for 3 times testing and choose the good data of repeatability and be analyzed.
Result is as shown in the table:
Claims (8)
1. the preparation method of a nano silicon carbide Si modification insulating paper, it is characterised in that comprise the steps of
(1) delivering to paste mill grinding by pulper after being cracked by cardboard, the source of the gas of described fiberizer is 0.3～0.9MPa, the end
Linear speed difference between dish and rotor is 5.5～6.5m/s, voltage is 380～420V, three-phase is 50～60Hz, beating pressure is
1.5～3.8kg/cm；
(2) by weight, by nanometer silicon carbide 26～48 parts, nano titanium oxide 13～26 parts, nanometer sodium silicate 9～17
Part, coupling agent kh-570 8～19 parts, sodium hydroxide 9～15 parts, water 32～48 parts of mixing, carry out mechanical agitation by suspension and divide
Dissipating, rotating speed is 4500～6000r/min, stirring 7～12 minutes, then ultrasonic disperse 12～obtain modification liquid in 16 minutes；
(3) modification liquid that step (2) prepares is added in the paper pulp that step (1) prepares, stirs 8～14 minutes in dissociation device,
Being placed in sheet forming apparatus by mixture and making quality is 110～140g/m2, thickness be 0.15～0.26mm l Water Paper base；
(4) hot pressing in hot press sent into by l Water Paper base step (3) prepared, and hot pressing condition is 22～28MPa, 8～18 points
Clock, is subsequently placed in vacuum drying oven and is dried, and vacuum is 0.005～0.01MPa, and temperature is 95～112 DEG C, prepares nano-sized carbon
SiClx modification insulating paper.
The preparation method of a kind of nano silicon carbide Si modification insulating paper the most according to claim 1, it is characterised in that step
(1) delivering to paste mill grinding by pulper after being cracked by cardboard in, the source of the gas of described fiberizer is 0.7MPa, chassis and rotor
Between linear speed difference 6.1m/s, voltage be 400V, three-phase be 56Hz, beating pressure be 3.2kg/cm.
The preparation method of a kind of nano silicon carbide Si modification insulating paper the most according to claim 1, it is characterised in that step
(2) in by weight, by nanometer silicon carbide 43 parts, nano titanium oxide 22 parts, nanometer sodium silicate 14 parts, coupling agent KH-
57013 parts, sodium hydroxide 12 parts, the mixing of 40 parts of water, suspension is carried out mechanical agitation dispersion, rotating speed is 5500r/min, stirring
10 minutes, then 14 minutes acquisition modification liquids of ultrasonic disperse.
The preparation method of a kind of nano silicon carbide Si modification insulating paper the most according to claim 1, it is characterised in that step
(3) in, the modification liquid that step (2) prepares is added in the paper pulp that step (1) prepares, stir 12 minutes in dissociation device, will mixing
Thing is placed in sheet forming apparatus and makes quality is 125g/m2, thickness be the l Water Paper base of 0.22mm.
The preparation method of a kind of nano silicon carbide Si modification insulating paper the most according to claim 1, it is characterised in that step
(4) hot pressing in hot press sent into by the l Water Paper base that step (3) prepared in, hot pressing condition be 25MPa, 15 minutes, then put
Being dried in vacuum drying oven, vacuum is 0.008MPa, and temperature is 108 DEG C, prepares nano silicon carbide Si modification insulating paper.
The preparation method of a kind of nano silicon carbide Si modification insulating paper the most according to claim 1, it is characterised in that described step
Suddenly in (2) particle diameter of nanometer silicon carbide be 25～32nm, the particle diameter of nano titanium oxide be 22～30nm, the grain of nanometer sodium silicate
Footpath is 24～31nm.
7. the nano silicon carbide Si modification insulating paper that claim 1～6 either method prepares.
8. the application in cladding transposed conductor core of the nano silicon carbide Si modification insulating paper described in claim 7.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112900131A (en) * | 2021-01-17 | 2021-06-04 | 江苏宇航板业有限公司 | Production process of high-performance paper pulp |
| CN113528217A (en) * | 2021-06-09 | 2021-10-22 | 广西大学 | Nano SiC-modified high-thermal-conductivity corn insulating oil and preparation method thereof |
| CN113832778A (en) * | 2021-05-28 | 2021-12-24 | 广西大学 | Preparation method of heat-conducting insulating paper based on nano silicon nitride modification |
| CN115110335A (en) * | 2022-05-20 | 2022-09-27 | 重庆大学 | Novel nano modified insulating paper and preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104131494A (en) * | 2014-07-29 | 2014-11-05 | 哈尔滨理工大学 | Nonlinear insulation board based on nano modification and preparation method thereof |
| CN105568774A (en) * | 2015-12-17 | 2016-05-11 | 华南理工大学 | High-performance oil-immersed insulation paper and preparation method and application thereof |
| CN105696408A (en) * | 2016-04-05 | 2016-06-22 | 哈尔滨理工大学 | Nano modified paper based on surface modification and preparation method thereof |
| WO2016112523A1 (en) * | 2015-01-16 | 2016-07-21 | 阿尔斯通技术有限公司 | Nanometer aluminium oxide modified insulation paper and preparation method thereof |
-
2016
- 2016-08-23 CN CN201610709584.9A patent/CN106245460A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104131494A (en) * | 2014-07-29 | 2014-11-05 | 哈尔滨理工大学 | Nonlinear insulation board based on nano modification and preparation method thereof |
| WO2016112523A1 (en) * | 2015-01-16 | 2016-07-21 | 阿尔斯通技术有限公司 | Nanometer aluminium oxide modified insulation paper and preparation method thereof |
| CN105568774A (en) * | 2015-12-17 | 2016-05-11 | 华南理工大学 | High-performance oil-immersed insulation paper and preparation method and application thereof |
| CN105696408A (en) * | 2016-04-05 | 2016-06-22 | 哈尔滨理工大学 | Nano modified paper based on surface modification and preparation method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112900131A (en) * | 2021-01-17 | 2021-06-04 | 江苏宇航板业有限公司 | Production process of high-performance paper pulp |
| CN113832778A (en) * | 2021-05-28 | 2021-12-24 | 广西大学 | Preparation method of heat-conducting insulating paper based on nano silicon nitride modification |
| CN113832778B (en) * | 2021-05-28 | 2022-12-02 | 广西大学 | Preparation method of heat-conducting insulating paper based on nano silicon nitride modification |
| CN113528217A (en) * | 2021-06-09 | 2021-10-22 | 广西大学 | Nano SiC-modified high-thermal-conductivity corn insulating oil and preparation method thereof |
| CN115110335A (en) * | 2022-05-20 | 2022-09-27 | 重庆大学 | Novel nano modified insulating paper and preparation method and application thereof |
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Application publication date: 20161221 |