CN107829328A - A kind of preparation method of compound type insulating meta-position aramid fiber paper - Google Patents
A kind of preparation method of compound type insulating meta-position aramid fiber paper Download PDFInfo
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- CN107829328A CN107829328A CN201711005913.2A CN201711005913A CN107829328A CN 107829328 A CN107829328 A CN 107829328A CN 201711005913 A CN201711005913 A CN 201711005913A CN 107829328 A CN107829328 A CN 107829328A
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- meta
- aramid
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- aramid fiber
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- 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
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/10—Organic non-cellulose fibres
- D21H13/20—Organic non-cellulose fibres from macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H13/26—Polyamides; Polyimides
-
- 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
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paper (AREA)
- Organic Insulating Materials (AREA)
Abstract
The invention discloses a kind of preparation method of compound type insulating meta-position aramid fiber paper, belong to insulating materials technical field, take 100 150 parts of meta-aramid chopped strand and 10 50 parts of meta-aramid pulp respectively first, be sufficiently mixed after carrying out surface chemical modification processing；Then discongested in fluffer, 15 parts of amidocarbonic acid fat resins, 15 parts of polypropylene glue and 13 parts of furane resins are added during discongesting, form meta-aramid fibers slurry；Finally go up net forming and serve paper machine and batch by wet end drainage, press dewatering, cylinder dried, press polish, and cut and produce aramid fiber paper.It is high by aramid paper intensity made from preparation method of the present invention, high-low temperature resistant and can have good water resistance and high-insulativity, improve the dispersiveness of fiber, beneficial to the raising of formation of sheet, bonding, insulation and the enhancing advantage between aramid fiber are improved, improves the property such as insulating properties and smooth surface of paper.
Description
Technical field
The present invention relates to a kind of preparation method of compound type insulating meta-position aramid fiber paper, belong to insulating materials technical field.
Background technology
Meta-position aramid fiber paper turns into because of its special page structure, and excellent machinery, electrically and physically chemistry, performance
A kind of revolutionary new material, rapid popularization and application are obtained in the field such as military project, communication, traffic, electric, market prospects are very wide
It is wealthy.Meta-position aramid fiber paper is the generally acknowledged high-quality insulating materials in the whole world.Its heatproof class of insulation is C levels (220 DEG C), more than 200
DEG C hot environment in remain to keep good electric and mechanical performance, electronic product can be made to reach F levels (155 DEG C), H levels (180
DEG C) the heatproof class of insulation；It is breakdown voltage resistant to be higher than 20 kvolts/millimeter, there is outstanding dielectric strength；It is indeformable under high temperature, no
Fusing, is greatly improved the overload capacity of electronic product, and is allowed to compact durable, and service life extends.
External aramid paper has been able to the requirement for meeting high-end field, but the country is to virtue by development for many years
The research of synthetic fibre paper is started late, and the aramid paper strength character developed differs larger with same kind of products at abroad, it is impossible to meets high-end
The requirement of the harsh environment in field.
The Chinese invention patent that patent publication No. is 1932148 proposes a kind of " virtue using aramid short fiber as raw material
Synthetic fibre paper and preparation method thereof " this method uses aramid short fiber 10%~90%, and meta-aramid fibre fibrid 10%~
90%, polyester staple fiber 0%~60%, the ratio of mica 0%~50% prepares a kind of synthesis aramid paper, and polyester is chopped fine
Dimension is played a role as viscose fibre, makes to be tightly combined between fiber, but because polyester fiber can heat receipts under hot pressing condition
Contracting, paper Central Plains polyester fiber position is formed space or pinprick because of its contraction, so as to add the voidage of paper, enter
And influence the insulating properties of paper.
Patent publication No. is that 102953289A Chinese invention patent proposes a kind of " polyimide resin enhancing meta virtue
The preparation method of synthetic fibre paper ", aramid fiber slurry, Ran Houxiang are prepared into using meta-aramid chopped strand and meta-aramid fibre fibrid
Styrene-butadiene latex and PAMC, aramid fiber body paper of manufacturing paper with pulp out, finally by body paper are added in aramid fiber slurry
With after polyimide resin-impregnated meta-aramid fibers paper is obtained by hot press hot pressing.Publication No. 102864676A patent
Itd is proposed in " a kind of method for preparing p-aramid paper " with the polyimides being diluted through DMAC N,N' dimethyl acetamide solvent
Solution impregnates p-aramid fiber body paper, then through hot press hot pressing so as to obtaining aramid paper.Aramid paper prepared by above two method
The aramid fiber body paper that intensity does not all carry out impregnation relatively is high, but in dipping process, uptake of the body paper to polyimide solution
Hardly possible control, and paper can become fragile after hot pressing after dipping, so as to cause intensity to decline.
The content of the invention
It is an object of the invention to provide the compound type insulating of a kind of intensity height, high-low temperature resistant, high insulation and water-tolerant
The preparation method of meta-position aramid fiber paper.
To achieve these goals, the technical solution adopted in the present invention is as follows：A kind of compound type insulating meta-position aramid fiber paper
Preparation method, comprise the following steps, wherein following material is mass parts：
1) fibre stuff is configured, takes the meta-aramid chopped strand of 100-150 parts and the meta-aramid of 10-50 parts respectively
Pulp, it is sufficiently mixed after carrying out surface chemical modification processing；
2) fibre stuff configured through step 1) is discongested in fluffer, 1-5 part amidos is added during discongesting
Formic acid fat resin, 1-5 part polypropylene glue and 1-3 part furane resins, form meta-aramid fibers slurry；
3) the meta-aramid fibers approach flow through step 1) stroke is molded and serves paper machine by wet end drainage, pressure
Squeezing dehydration, cylinder dried, press polish are batched, and cut and produce aramid fiber paper.
Preferably, it is a kind of or 2 kinds that absolute ethyl alcohol, anhydrous propanone are added during the discongesting of step 2).
Preferably, added during the discongesting of step 2) in epoxy resin, phenolic resin, curing agent, or powdered resin
Select one kind or 2 kinds, 3 kinds.
Preferably, surface chemical modification solution choosing is carried out to the meta-aramid chopped strand and the meta-aramid pulp
With saturation chloroform soln；Aramid fiber is added during surface chemical modification into saturation chloroform soln respectively while stirring
Chopped strand, Fanglun slurry cake, continue stirring reaction, by the aramid short fiber after stirring reaction 1-5min and stirring reaction 10-
Fanglun slurry cake after 20min is sufficiently mixed after cleaning.
Compared with prior art, it is strong by aramid paper made from the preparation method of compound type insulating meta-position aramid fiber paper of the present invention
Degree is high, can high-low temperature resistant, there is good water resistance and high-insulativity.The dispersiveness of fiber can be improved, it is even beneficial to paper
The raising of degree, bonding, insulation and enhancing advantage between aramid fiber are improved, effectively improves tensile strength, the tear of paper
The mechanical performances such as intensity, improve the property such as insulating properties and smooth surface of paper, collect the organic and inorganic many spies of material excellent properties
Property in one, so as to assigning the excellent mechanical performance of paper, not only improving heat resistance but also improving its resistance to low temperature and absolutely
Edge, product cost is improved, can be as the important foundation in the fields such as electronics, communication, environmental protection, chemical industry and ocean development
Material, for fields such as motor insulation, transformer, composite insulating materials.
Embodiment
The present invention is further described below with reference to specific embodiment.
The present invention provides a kind of preparation method of compound type insulating meta-position aramid fiber paper, comprises the following steps,
The first step：Fibre stuff is configured, takes 100kg meta-aramid chopped strand and 30kg meta-aramid to starch respectively
The dregs of rice, it is sufficiently mixed after carrying out surface chemical modification processing；Wherein surface chemical modification solution is molten from saturation chloroform
Liquid；Add aramid short fiber, aramid fiber into saturation chloroform soln respectively while stirring during surface chemical modification
Pulp, continue stirring reaction, by the aramid short fiber after stirring reaction 10min and the Fanglun slurry cake after stirring reaction 20min
It is sufficiently mixed after cleaning.
Second step：The fibre stuff configured through step 1) is discongested in fluffer, 2kg amine is added during discongesting
Base formic acid fat resin, 2kg polypropylene glue and 1kg part furane resins, form meta-aramid fibers slurry；On carrying out net forming it
Before, the temperature remains within the normal range for meta-aramid fibers slurry.
3rd step：Meta-aramid fibers approach flow through step 1) stroke is molded and serves paper machine and is filtered by wet end
Water, press dewatering, cylinder dried, press polish are batched, and cut and produced aramid fiber paper.
For the insulating properties and high and low temperature resistance of further lifting aramid paper, added during the discongesting of step 2) anhydrous
Ethanol, anhydrous propanone one kind or 2 kinds；Or add and one kind or 2 are selected in epoxy resin, phenolic resin, curing agent, or powdered resin
Plant, 3 kinds.
The compound inslation meta-position aramid fiber paper of the present invention, the surface chemical modification by early stage are keeping fibrous inner structure not
In the case of change, effectively improve fiber and the weak interface layer on pulp surface, improve the surface energy of fiber, it is molded in paper
During binding ability between reinforcing fiber, improve the dispersiveness of fiber, so as to lift the physical strength performance of aramid fiber paper, afterwards
Mixing adds 2kg amidocarbonic acid fat resin, 2kg polypropylene glue and 1kg furane resins during discongesting, improve the scattered of fiber
Property, beneficial to the raising of formation of sheet, bonding, insulation and the enhancing advantage between aramid fiber are improved, effectively improves paper
The mechanical performances such as tensile strength, tearing strength, improve the property such as insulating properties and smooth surface of paper, collect organic and inorganic material
The many characteristics of excellent properties are in one, so as to assigning the excellent mechanical performance of paper, not only improving heat resistance but also improving it
Resistance to low temperature and insulating properties, improve product cost, can be used as the neck such as electronics, communication, environmental protection, chemical industry and ocean development
Important foundation material in domain, for fields such as motor insulation, transformer, composite insulating materials.
Schematically the present invention and embodiments thereof are described above, the description is not restricted.So if
One of ordinary skill in the art is enlightened by it, without departing from the spirit of the invention, without the design of creativeness
Go out the frame mode similar to the technical scheme and embodiment, protection scope of the present invention all should be belonged to.
Claims (4)
1. a kind of preparation method of compound type insulating meta-position aramid fiber paper, it is characterised in that comprise the following steps, wherein following thing
Expect for mass parts：
1) fibre stuff is configured, takes the meta-aramid chopped strand of 100-150 parts and the meta-aramid pulp of 10-50 parts respectively,
It is sufficiently mixed after carrying out surface chemical modification processing；
2) fibre stuff configured through step 1) is discongested in fluffer, 1-5 part amidocarbonic acids is added during discongesting
Fat resin, 1-5 part polypropylene glue and 1-3 part furane resins, form meta-aramid fibers slurry；
3) the meta-aramid fibers approach flow through step 1) stroke is molded and serves paper machine and taken off by wet end drainage, squeezing
Water, cylinder dried, press polish are batched, and cut and produced aramid fiber paper.
2. the preparation method of compound type insulating meta-position aramid fiber paper according to claim 1, it is characterised in that in step 2)
Addition absolute ethyl alcohol, anhydrous propanone one kind or 2 kinds during discongesting.
3. the preparation method of compound type insulating meta-position aramid fiber paper according to claim 1, it is characterised in that in step 2)
Added during discongesting and one kind or 2 kinds, 3 kinds are selected in epoxy resin, phenolic resin, curing agent, or powdered resin.
4. the preparation method of the compound type insulating meta-position aramid fiber paper according to claim 1 or 2 or 3, it is characterised in that to institute
State meta-aramid chopped strand and select saturation chloroform soln with meta-aramid pulp progress surface chemical modification solution；
Add aramid short fiber, Fanglun slurry cake during surface chemical modification into saturation chloroform soln respectively while stirring,
Continue stirring reaction, the aramid short fiber after stirring reaction 1-5min and the Fanglun slurry cake after stirring reaction 10-20min are washed
It is sufficiently mixed after net.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711005913.2A CN107829328A (en) | 2017-10-25 | 2017-10-25 | A kind of preparation method of compound type insulating meta-position aramid fiber paper |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711005913.2A CN107829328A (en) | 2017-10-25 | 2017-10-25 | A kind of preparation method of compound type insulating meta-position aramid fiber paper |
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| CN107829328A true CN107829328A (en) | 2018-03-23 |
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| CN201711005913.2A Pending CN107829328A (en) | 2017-10-25 | 2017-10-25 | A kind of preparation method of compound type insulating meta-position aramid fiber paper |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110499669A (en) * | 2019-08-28 | 2019-11-26 | 恩若杰纳米技术(上海)有限公司 | A kind of environment-protection fiber paper and preparation method thereof |
| CN114853626A (en) * | 2022-05-27 | 2022-08-05 | 超美斯新材料股份有限公司 | Method for recovering DMAC (dimethylacetamide) in aramid fiber production byproducts |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000123816A (en) * | 1998-10-13 | 2000-04-28 | Oji Paper Co Ltd | Separator for alkali-manganese battery |
| WO2007076333A2 (en) * | 2005-12-21 | 2007-07-05 | E. I. Du Pont De Nemours And Company | Paper comprising pipd pulp and a process for making same |
| CN101725062A (en) * | 2009-12-01 | 2010-06-09 | 陕西科技大学 | Chemical modification method for surfaces of aramid fibers |
| CN102154914A (en) * | 2011-02-24 | 2011-08-17 | 钟洲 | Method for preparing aramid paper and aramid paper prepared by method |
| CN102174771A (en) * | 2011-01-28 | 2011-09-07 | 钟洲 | Method for making additive meta-aramid paper |
| CN204626168U (en) * | 2015-04-01 | 2015-09-09 | 圣欧芳纶（淮安）有限公司 | Based on conductive paper and the conductive strips of meta-aramid |
-
2017
- 2017-10-25 CN CN201711005913.2A patent/CN107829328A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000123816A (en) * | 1998-10-13 | 2000-04-28 | Oji Paper Co Ltd | Separator for alkali-manganese battery |
| WO2007076333A2 (en) * | 2005-12-21 | 2007-07-05 | E. I. Du Pont De Nemours And Company | Paper comprising pipd pulp and a process for making same |
| CN101725062A (en) * | 2009-12-01 | 2010-06-09 | 陕西科技大学 | Chemical modification method for surfaces of aramid fibers |
| CN102174771A (en) * | 2011-01-28 | 2011-09-07 | 钟洲 | Method for making additive meta-aramid paper |
| CN102154914A (en) * | 2011-02-24 | 2011-08-17 | 钟洲 | Method for preparing aramid paper and aramid paper prepared by method |
| CN204626168U (en) * | 2015-04-01 | 2015-09-09 | 圣欧芳纶（淮安）有限公司 | Based on conductive paper and the conductive strips of meta-aramid |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110499669A (en) * | 2019-08-28 | 2019-11-26 | 恩若杰纳米技术(上海)有限公司 | A kind of environment-protection fiber paper and preparation method thereof |
| CN114853626A (en) * | 2022-05-27 | 2022-08-05 | 超美斯新材料股份有限公司 | Method for recovering DMAC (dimethylacetamide) in aramid fiber production byproducts |
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Application publication date: 20180323 |