CN106223104A - A kind of method using PSA fiber to prepare aramid fiber extrusion coating paper - Google Patents
A kind of method using PSA fiber to prepare aramid fiber extrusion coating paper Download PDFInfo
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- CN106223104A CN106223104A CN201610602490.1A CN201610602490A CN106223104A CN 106223104 A CN106223104 A CN 106223104A CN 201610602490 A CN201610602490 A CN 201610602490A CN 106223104 A CN106223104 A CN 106223104A
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- psa
- extrusion coating
- paper
- hot pressing
- 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
- D21H15/00—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution
- D21H15/02—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration
- D21H15/10—Composite fibres
-
- 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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/52—Epoxy resins
-
- 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
- D21H21/06—Paper forming aids
- D21H21/08—Dispersing agents for fibres
Abstract
The invention discloses a kind of method using PSA fiber to prepare aramid fiber extrusion coating paper, specifically include following steps: PSA chopped strand is carried out pretreatment；Carry out PSA chopped strand fluffer after pretreatment discongesting for the first time；Then add meta-aramid pulp fibers, carry out secondary and discongest；Finally add dispersant, carry out third time and discongest, obtain suspension；The suspension obtained is injected in sheet forming apparatus and carries out dehydration forming, after squeezing, dried, obtain aramid fiber extrusion coating paper body paper；The aramid fiber extrusion coating paper body paper of gained is carried out hot-forming, obtains aramid fiber extrusion coating paper.The aramid fiber extrusion coating paper preparation method that the present invention provides, can maximally utilise the high powerful feature of chopped strand, improves the strength character of meta-position aramid fiber paper.
Description
Technical field
The invention belongs to paper industry and material industry interleaving techniques field, relate to a kind of employing PSA fiber and prepare aramid fiber again
The method of combined paper.
Background technology
With meta-aramid (poly(isophthaloyl metaphenylene diamine)) pulp fibers and meta-aramid chopped strand as raw material, utilize
Modern paper wet papermaking technology is manufactured paper with pulp and hot-forming prepared flaky composite material, is a kind of high-performance synthetic fibers paper substrate
Material.Because it has tough mechanical performance, good dielectric properties, preferable resistance to elevated temperatures and can design flexibly
Property, can be extensive at special dimensions such as Aero-Space, traffic power, national defense and military as insulant, electronic material, structural material
Application.
The production domesticization of meta-aramid paper base material is also faced with a heavy difficult problem, has the problem of raw materials quality, fiber to disperse and wet
Method net-forming process and the problem of equipment, particularly hot press forming technology problem.The meta-position aramid fiber paper mechanical strength properties formed is poor,
And parchmentizing phenomenon is serious, resistance to ag(e)ing is poor.Become the bottleneck that restriction aramid paper is applied further.
PSA fiber i.e. polysulfones base nylon, chemical name is Polyphenylene Sulfone terephthalamide fiber, English abbreviation PSA,
It is China's independent research, there are the high-performance synthetic fibers of independent intellectual property right.In its macromolecular chain segment structure, existing para-position is again
Having a bit architecture, have stable and regular molecular structure, degree of crystallinity is high, and the degree of orientation is good.Polysulphonamide fiber has excellence
Heat resistance, chemical stability and electrical insulating property, prominent resistance to thermooxidation.In 300 DEG C of hot-airs after 100 hours its
Strength retention is 80%, and in 350 DEG C of hot-airs after 50 hours, strength retention remains to reach 50%, and at 270 DEG C
Hereinafter, there is good dimensional stability.The fusing point that polysulphonamide fiber is not fixed, high-temperature decomposition temperature more than 420 DEG C, it is big
Even if strand occurs melted, do not crack.Polysulphonamide fiber chemical stability highlights, through 80 DEG C, and 30% concentrated hydrochloric acid, sulfur
Acid, nitric acid treatment, fibrous mechanical property is slightly aobvious to be declined.Fiber is hydrophobic fibre, and in water, dispersion effect is poor, at synthetic fibers
In the dispersive process of pulp material, easily wadding gathers and affects paper-forming evenness and intensity.And at preparation high-performance synthetic fibre paper
In research process, hold suitable heat pressing process and paper strength performance is had conclusive impact.The most how to improve paper
Evenness and intensity are the emphasis of current field of papermaking research.
Summary of the invention
It is an object of the invention to provide a kind of method using PSA fiber to prepare aramid fiber extrusion coating paper, can land productivity to greatest extent
With the high powerful feature of chopped strand, improve the strength character of meta-position aramid fiber paper.
The technical solution adopted in the present invention is, a kind of method using PSA fiber to prepare aramid fiber extrusion coating paper, specifically includes
Following steps:
Step 1, carries out pretreatment to PSA chopped strand；
Step 2, will carry out discongesting for the first time through step 1 pretreated PSA chopped strand fluffer；Then add
Meta-aramid pulp fibers, carries out secondary and discongests；Finally add dispersant, carry out third time and discongest, obtain suspension；
Step 3, suspension step 2 obtained injects in sheet forming apparatus and carries out dehydration forming, through squeezing, dried
After aramid fiber extrusion coating paper body paper；
Step 4, carries out hot-forming by the aramid fiber extrusion coating paper body paper of step 3 gained, obtains aramid fiber extrusion coating paper.
The feature of the present invention also resides in,
Wherein the preprocessing process of step 1 is:
It is 1.0 × 10 by PSA chopped strand in molar concentration-3Mol/L～3 × 10-3Mol/L, temperature are 40 DEG C～60 DEG C
Dodecylbenzene sodium sulfonate solution in soak 0.5h～1h, then washing 3～5 times, finally do at 100 DEG C～105 DEG C of vacuum
Dry case is dried to over dry.
Wherein in step 2, the mass ratio of PSA chopped strand and meta-aramid pulp fibers is 4:6.
Wherein the dispersant in step 2 is polyethylene glycol oxide, and addition is to starch with meta-aramid relative to PSA chopped strand
The 0.05%～0.07% of dregs of rice fiber absolute dry mass, the parameter of discongesting discongested for the first time is: fluffer discongest 15000r～
25000r；The parameter of discongesting that second time is discongested is: 15000r～25000r discongested by fluffer；What third time was discongested discongests parameter
For: 15000r～25000r discongested by fluffer.
Wherein the detailed process of step 3 is: injected in sheet forming apparatus by the suspension of step 2 gained, prepares quantitatively
For 100g/m2Aramid paper humidity strip, then processes 1min～3min through hydraulic press squeezing, removes moisture unnecessary in wet sheet,
After by squeezing process after wet sheet dry in paper baker.
Wherein in step 3, the pressure of hydraulic press is 0.4MPa～0.6MPa.
Wherein in step 3, the drying temperature in paper baker is 95 DEG C～105 DEG C, drying time be 5min～
8min。
Wherein the detailed process of step 4 is:
First aramid fiber extrusion coating paper body paper step 3 prepared hot pressing 2～4 times on vulcanizing press, be placed on the most again
Hot pressing 1～3 times on three roller hot presses.
Wherein in step 4, the hot compression parameters on vulcanizing press is: hot pressing temperature is 240 DEG C～290 DEG C, hot pressing time
For 1min～5min, hot pressing pressure is 9MPa～21MPa.
Wherein in step 4, the hot compression parameters on three roller hot presses is: hot pressing temperature is 220 DEG C～240 DEG C, hot pressing pressure
100bar～140bar, roller speed 0.5～1.5m/min.
The invention has the beneficial effects as follows, the preparation method that the present invention provides uses PSA fiber and meta-aramid pulp fibers
As raw material, control hot pressing temperature, make temperature be less than the fusing point of fiber so that PSA fiber table and partial melting, meta-aramid
Pulp fibers occurs melted, and certain pressure condition makes paper degree of crystallinity improve, and strand arrangement is the most regular in order,
The result of pulp fibers deformation and migration is so that Inter-fiber voids diminishes and tails off, and fiber combining area is bigger, and fiber is tied
Closing tightr, make into paper tensile index and increase substantially, the advantage of PSA fiber reinforcement meta-position aramid fiber paper is can be to greatest extent
Utilize the high powerful feature of chopped strand, and in hot pressing, effectively disperse heat flow density, thus improve meta-aramid
The strength character of paper.
Accompanying drawing explanation
Fig. 1 is the hot pressing middle plateform vulcanizer heat of a kind of method using PSA fiber to prepare aramid fiber extrusion coating paper of the present invention
The pressure temperature impact on aramid paper strength character；
Fig. 2 is the hot pressing middle plateform vulcanizer heat of a kind of method using PSA fiber to prepare aramid fiber extrusion coating paper of the present invention
The impact on aramid paper strength character of the pressure time；
Fig. 3 is the hot pressing middle plateform vulcanizer heat of a kind of method using PSA fiber to prepare aramid fiber extrusion coating paper of the present invention
The pressure pressure impact on aramid paper strength character.
Detailed description of the invention
The present invention is described in detail with detailed description of the invention below in conjunction with the accompanying drawings.
A kind of method using PSA fiber to prepare aramid fiber extrusion coating paper of the present invention, specifically includes following steps:
Step 1, carries out pretreatment to PSA chopped strand；The preprocessing process of PSA chopped strand is: by PSA chopped strand
It is 1.0 × 10 in molar concentration-3Mol/L～3 × 10-3Mol/L, temperature are that the dodecylbenzene sodium sulfonate of 40 DEG C～60 DEG C is molten
Soaking 0.5h～1h in liquid, then washing 3～5 times, are finally dried to over dry in 100 DEG C～105 DEG C of vacuum drying ovens.
Step 2, will carry out discongesting for the first time through step 1 pretreated PSA chopped strand fluffer；Then add
Meta-aramid pulp fibers, carries out secondary and discongests；Finally add dispersant, carry out third time and discongest, obtain suspension；
PSA chopped strand is 4:6 with the mass ratio of meta-aramid pulp fibers, and dispersant is polyethylene glycol oxide, addition
For relative to PSA chopped strand and the 0.05%～0.07% of meta-aramid pulp fibers absolute dry mass, that discongests for the first time dredges
Solution parameter is: 15000r～25000r discongested by fluffer, discongests concentration and controls in mass percent 0.3%；Second time is discongested
Discongesting parameter is: 15000r～25000r discongested by fluffer, discongests concentration and controls in mass percent 0.3%；Third time is discongested
Parameter of discongesting be: 15000r～25000r discongested by fluffer, discongests concentration and controls in mass percent 0.3%.
Step 3, suspension step 2 obtained injects in sheet forming apparatus and carries out dehydration forming, through squeezing, dried
After aramid fiber extrusion coating paper body paper；
The detailed process of step 3 is: is injected in sheet forming apparatus by the suspension of step 2 gained, prepares quantification of
100g/m2Aramid paper humidity strip, then processes 1min～3min through hydraulic press squeezing, removes moisture unnecessary in wet sheet, finally
Wet sheet after squeezing being processed is dried in paper baker.
Wherein the pressure of hydraulic press is 0.4MPa～0.6MPa, and the drying temperature in paper baker is 95 DEG C～105 DEG C,
Drying time is 5min～8min；
Step 4, carries out hot-forming by the aramid fiber extrusion coating paper body paper of step 3 gained, obtains high performance aramid fiber extrusion coating paper；Step
The detailed process of rapid 4 is:
First aramid fiber extrusion coating paper body paper step 3 prepared hot pressing 2～4 times on vulcanizing press, be placed on the most again
Hot pressing 1～3 times on three roller hot presses；
Hot compression parameters on vulcanizing press is: hot pressing temperature is 240 DEG C～290 DEG C, hot pressing time be 1min～
5min, hot pressing pressure is 9MPa～21MPa；
Hot compression parameters on three roller hot presses is: hot pressing temperature is 220 DEG C～240 DEG C, hot pressing pressure 100bar～
140bar, roller speed 0.5～1.5m/min.
Embodiment 1
PSA chopped strand is carried out pretreatment, and preprocessing process is: be 1.0 × 10 in molar concentration-3Mol/L, temperature are
Soaking 0.5h in the dodecylbenzene sodium sulfonate solution of 40 DEG C, then washing 3 times, are finally dried in 100 DEG C of vacuum drying ovens
Over dry；Weigh 1.27g pretreated over dry PSA chopped strand, fluffer is discongested 15000r, discongests concentration and control in matter
Amount percentage ratio 0.3%, then weighs 1.90g over dry meta-aramid pulp, adds in the PSA chopped strand solution through discongesting, then
Secondary discongest 15000r, discongest concentration and control in mass percent 0.3%, finally will be relative to PSA chopped strand and meta-aramid
The polyethylene glycol oxide of the 0.05% of pulp fibers absolute dry mass adds in PSA chopped strand and meta-aramid pulp mixed serum,
Discongest 15000r, discongest concentration and control, in mass percent 0.3%, to obtain suspension, the suspension obtained is injected sheet forming
In device, prepare quantification of 100g/m2Aramid paper humidity strip, then processes 1min through hydraulic press squeezing under the pressure of 0.4MPa,
Removing moisture unnecessary in wet sheet, the wet sheet after finally squeezing being processed is dried in paper baker, dries temperature
Degree is 95 DEG C, and drying time is 5min, obtains aramid fiber extrusion coating paper body paper；By the aramid fiber extrusion coating paper body paper that obtains first at vulcanizing press
Upper hot pressing 2 times, hot pressing temperature is 240 DEG C, and hot pressing time is 1min, and hot pressing pressure is 9MPa；It is placed on three roller hot presses the most again
Upper hot pressing 1 time, hot pressing temperature is 220 DEG C, and hot pressing pressure is 100bar, and roller speed is 0.5m/min, obtains high performance aramid fiber and is combined
Paper.
Embodiment 2
PSA chopped strand is carried out pretreatment, and preprocessing process is: be 3.0 × 10 in molar concentration-3Mol/L, temperature are
The dodecylbenzene sodium sulfonate solution of 60 DEG C soaks 1h, then washing 5 times, is finally dried in 105 DEG C of vacuum drying ovens absolutely
Dry；Weigh 1.27g pretreated over dry PSA chopped strand, fluffer is discongested 25000r, discongests concentration and control in quality
Percentage ratio 0.3%, then weighs 1.90g over dry meta-aramid pulp, adds in the PSA chopped strand solution through discongesting, again
Discongest 25000r, discongest concentration and control in mass percent 0.3%, finally will starch with meta-aramid relative to PSA chopped strand
The polyethylene glycol oxide of the 0.07% of dregs of rice fiber absolute dry mass adds in PSA chopped strand and meta-aramid pulp mixed serum, dredges
Solve 25000r, discongest concentration and control, in mass percent 0.3%, to obtain suspension, the suspension obtained is injected sheet forming apparatus
In, prepare quantification of 100g/m2Aramid paper humidity strip, then processes 3min through hydraulic press squeezing under the pressure of 0.6MPa, removes
Go moisture unnecessary in wet sheet, the wet sheet after finally squeezing being processed to dry in paper baker, dry temperature
Being 105 DEG C, drying time is 8min, obtains aramid fiber extrusion coating paper body paper；By the aramid fiber extrusion coating paper body paper that obtains first at vulcanizing press
Upper hot pressing 4 times, hot pressing temperature is 290 DEG C, and hot pressing time is 5min, and hot pressing pressure is 21MPa；It is placed on three roller hot presses the most again
Upper hot pressing 3 times, hot pressing temperature is 240 DEG C, and hot pressing pressure is 140bar, and roller speed is 1.5m/min, obtains high performance aramid fiber and is combined
Paper.
Embodiment 3
PSA chopped strand is carried out pretreatment, and preprocessing process is: be 2.0 × 10 in molar concentration-3Mol/L, temperature are
Soaking 0.75h in the dodecylbenzene sodium sulfonate solution of 50 DEG C, then washing 4 times, are finally dried in 102 DEG C of vacuum drying ovens
Over dry；Weigh 1.27g pretreated over dry PSA chopped strand, fluffer is discongested 20000r, discongests concentration and control in matter
Amount percentage ratio 0.3%, then weighs 1.90g over dry meta-aramid pulp, adds in the PSA chopped strand solution through discongesting, then
Secondary discongest 20000r, discongest concentration and control in mass percent 0.3%, finally will be relative to PSA chopped strand and meta-aramid
The polyethylene glycol oxide of the 0.06% of pulp fibers absolute dry mass adds PSA chopped strand and dredges in meta-aramid pulp mixed serum
Solve 20000r, discongest concentration and control, in mass percent 0.3%, to obtain suspension, the suspension obtained is injected sheet forming apparatus
In, prepare quantification of 100g/m2Aramid paper humidity strip, then processes 2min through hydraulic press squeezing under the pressure of 0.5MPa, removes
Go moisture unnecessary in wet sheet, the wet sheet after finally squeezing being processed to dry in paper baker, dry temperature
Being 100 DEG C, drying time is 6.5min, obtains aramid fiber extrusion coating paper body paper；By the aramid fiber extrusion coating paper body paper that obtains first at compression molding
Hot pressing 3 times on machine, hot pressing temperature is 240 DEG C, and hot pressing time is 4min, and hot pressing pressure is 18MPa；It is placed on three roller hot pressing the most again
Hot pressing 2 times on machine, hot pressing temperature is 230 DEG C, and hot pressing pressure is 120bar, and roller speed is 1m/min, and obtaining tensile index is 23.2N
m·g-1Aramid fiber extrusion coating paper.
Embodiment 4
PSA chopped strand is carried out pretreatment, and preprocessing process is: be 2.0 × 10 in molar concentration-3Mol/L, temperature are
Soaking 0.75h in the dodecylbenzene sodium sulfonate solution of 50 DEG C, then washing 4 times, are finally dried in 102 DEG C of vacuum drying ovens
Over dry；Weigh 1.27g pretreated over dry PSA chopped strand, fluffer is discongested 20000r, discongests concentration and control in matter
Amount percentage ratio 0.3%, then weighs 1.90g over dry meta-aramid pulp, adds in the PSA chopped strand solution through discongesting, then
Secondary discongest 20000r, discongest concentration and control in mass percent 0.3%, finally will be relative to PSA chopped strand and meta-aramid
The polyethylene glycol oxide of the 0.06% of pulp fibers absolute dry mass adds in PSA chopped strand and meta-aramid pulp mixed serum,
Discongest 20000r, discongest concentration and control, in mass percent 0.3%, to obtain suspension, the suspension obtained is injected sheet forming
In device, prepare quantification of 100g/m2Aramid paper humidity strip, then processes 2min through hydraulic press squeezing under the pressure of 0.5MPa,
Removing moisture unnecessary in wet sheet, the wet sheet after finally squeezing being processed is dried in paper baker, dries temperature
Degree is 100 DEG C, and drying time is 6.5min, obtains aramid fiber extrusion coating paper body paper；By the aramid fiber extrusion coating paper body paper that obtains first at flat board sulfur
Hot pressing 3 times on change machine, hot pressing temperature is 250 DEG C, and hot pressing time is 4min, and hot pressing pressure is 18MPa；It is placed on three roller heat the most again
Hot pressing 2 times on press, hot pressing temperature is 230 DEG C, and hot pressing pressure is 120bar, and roller speed is 1m/min, obtains tensile index and is
54.3N·m·g-1Aramid fiber extrusion coating paper.
Embodiment 5
PSA chopped strand is carried out pretreatment, and preprocessing process is: be 2.0 × 10 in molar concentration-3Mol/L, temperature are
Soaking 0.75h in the dodecylbenzene sodium sulfonate solution of 50 DEG C, then washing 4 times, are finally dried in 102 DEG C of vacuum drying ovens
Over dry；Weigh 1.27g pretreated over dry PSA chopped strand, fluffer is discongested 20000r, discongests concentration and control in matter
Amount percentage ratio 0.3%, then weighs 1.90g over dry meta-aramid pulp, adds in the PSA chopped strand solution through discongesting, then
Secondary discongest 20000r, discongest concentration and control in mass percent 0.3%, finally will be relative to PSA chopped strand and meta-aramid
The polyethylene glycol oxide of the 0.06% of pulp fibers absolute dry mass adds in PSA chopped strand and meta-aramid pulp mixed serum,
Discongest 20000r, discongest concentration and control, in mass percent 0.3%, to obtain suspension, the suspension obtained is injected sheet forming
In device, prepare quantification of 100g/m2Aramid paper humidity strip, then processes 2min through hydraulic press squeezing under the pressure of 0.5MPa,
Removing moisture unnecessary in wet sheet, the wet sheet after finally squeezing being processed is dried in paper baker, dries temperature
Degree is 100 DEG C, and drying time is 6.5min, obtains aramid fiber extrusion coating paper body paper；By the aramid fiber extrusion coating paper body paper that obtains first at flat board sulfur
Hot pressing 3 times on change machine, hot pressing temperature is 260 DEG C, and hot pressing time is 4min, and hot pressing pressure is 18MPa；It is placed on three roller heat the most again
Hot pressing 2 times on press, hot pressing temperature is 230 DEG C, and hot pressing pressure is 120bar, and roller speed is 1m/min, obtains tensile index and is
63.5N·m·g-1Aramid fiber extrusion coating paper.
Embodiment 6
PSA chopped strand is carried out pretreatment, and preprocessing process is: be 2.0 × 10 in molar concentration-3Mol/L, temperature are
Soaking 0.75h in the dodecylbenzene sodium sulfonate solution of 50 DEG C, then washing 4 times, are finally dried in 102 DEG C of vacuum drying ovens
Over dry；Weigh 1.27g pretreated over dry PSA chopped strand, fluffer is discongested 20000r, discongests concentration and control in matter
Amount percentage ratio 0.3%, then weighs 1.90g over dry meta-aramid pulp, adds in the PSA chopped strand solution through discongesting, then
Secondary discongest 20000r, discongest concentration and control in mass percent 0.3%, finally will be relative to PSA chopped strand and meta-aramid
The polyethylene glycol oxide of the 0.06% of pulp fibers absolute dry mass adds in PSA chopped strand and meta-aramid pulp mixed serum,
Discongest 20000r, discongest concentration and control, in mass percent 0.3%, to obtain suspension, the suspension obtained is injected sheet forming
In device, prepare quantification of 100g/m2Aramid paper humidity strip, then processes 2min through hydraulic press squeezing under the pressure of 0.5MPa,
Removing moisture unnecessary in wet sheet, the wet sheet after finally squeezing being processed is dried in paper baker, dries temperature
Degree is 100 DEG C, and drying time is 6.5min, obtains aramid fiber extrusion coating paper body paper；By the aramid fiber extrusion coating paper body paper that obtains first at flat board sulfur
Hot pressing 3 times on change machine, hot pressing temperature is 270 DEG C, and hot pressing time is 4min, and hot pressing pressure is 18MPa；It is placed on three roller heat the most again
Hot pressing 2 times on press, hot pressing temperature is 230 DEG C, and hot pressing pressure is 120bar, and roller speed is 1m/min, obtains tensile index and is
79.6N·m·g-1Aramid fiber extrusion coating paper.
Embodiment 7
PSA chopped strand is carried out pretreatment, and preprocessing process is: be 2.0 × 10 in molar concentration-3Mol/L, temperature are
Soaking 0.75h in the dodecylbenzene sodium sulfonate solution of 50 DEG C, then washing 4 times, are finally dried in 102 DEG C of vacuum drying ovens
Over dry；Weigh 1.27g pretreated over dry PSA chopped strand, fluffer is discongested 20000r, discongests concentration and control in matter
Amount percentage ratio 0.3%, then weighs 1.90g over dry meta-aramid pulp, adds in the PSA chopped strand solution through discongesting, then
Secondary discongest 20000r, discongest concentration and control in mass percent 0.3%, finally will be relative to PSA chopped strand and meta-aramid
The polyethylene glycol oxide of the 0.06% of pulp fibers absolute dry mass adds in PSA chopped strand and meta-aramid pulp mixed serum,
Discongest 20000r, discongest concentration and control, in mass percent 0.3%, to obtain suspension, the suspension obtained is injected sheet forming
In device, prepare quantification of 100g/m2Aramid paper humidity strip, then processes 2min through hydraulic press squeezing under the pressure of 0.5MPa,
Removing moisture unnecessary in wet sheet, the wet sheet after finally squeezing being processed is dried in paper baker, dries temperature
Degree is 100 DEG C, and drying time is 6.5min, obtains aramid fiber extrusion coating paper body paper；By the aramid fiber extrusion coating paper body paper that obtains first at flat board sulfur
Hot pressing 3 times on change machine, hot pressing temperature is 280 DEG C, and hot pressing time is 4min, and hot pressing pressure is 18MPa；It is placed on three roller heat the most again
Hot pressing 2 times on press, hot pressing temperature is 230 DEG C, and hot pressing pressure is 120bar, and roller speed is 1m/min, obtains tensile index and is
67.8N·m·g-1Aramid fiber extrusion coating paper.
Embodiment 8
PSA chopped strand is carried out pretreatment, and preprocessing process is: be 2.0 × 10 in molar concentration-3Mol/L, temperature are
Soaking 0.75h in the dodecylbenzene sodium sulfonate solution of 50 DEG C, then washing 4 times, are finally dried in 102 DEG C of vacuum drying ovens
Over dry；Weigh 1.27g pretreated over dry PSA chopped strand, fluffer is discongested 20000r, discongests concentration and control in matter
Amount percentage ratio 0.3%, then weighs 1.90g over dry meta-aramid pulp, adds in the PSA chopped strand solution through discongesting, then
Secondary discongest 20000r, discongest concentration and control in mass percent 0.3%, finally will be relative to PSA chopped strand and meta-aramid
The polyethylene glycol oxide of the 0.06% of pulp fibers absolute dry mass adds in PSA chopped strand and meta-aramid pulp mixed serum,
Discongest 20000r, discongest concentration and control, in mass percent 0.3%, to obtain suspension, the suspension obtained is injected sheet forming
In device, prepare quantification of 100g/m2Aramid paper humidity strip, then processes 2min through hydraulic press squeezing under the pressure of 0.5MPa,
Removing moisture unnecessary in wet sheet, the wet sheet after finally squeezing being processed is dried in paper baker, dries temperature
Degree is 100 DEG C, and drying time is 6.5min, obtains aramid fiber extrusion coating paper body paper；By the aramid fiber extrusion coating paper body paper that obtains first at flat board sulfur
Hot pressing 3 times on change machine, hot pressing temperature is 290 DEG C, and hot pressing time is 4min, and hot pressing pressure is 18MPa；It is placed on three roller heat the most again
Hot pressing 2 times on press, hot pressing temperature is 230 DEG C, and hot pressing pressure is 120bar, and roller speed is 1m/min, obtains tensile index and is
62.1N·m·g-1Aramid fiber extrusion coating paper.
In the aramid fiber extrusion coating paper preparation process of above example 3～8, remaining technological parameter is constant, to vulcanizing press
Hot pressing temperature be optimized, the Testing index of optimization is the mensuration of tensile index, if table 1 below is optimization experiment middle plateform sulfur
The impact on aramid fiber extrusion coating paper strength character under different hot pressing temperatures of change machine:
Table 1
Optimum results is as it is shown in figure 1, as shown in Figure 1, when using vulcanizing press to carry out hot pressing, at certain silicon carbide
Under, along with the rising of temperature, the tensile index of aramid fiber extrusion coating paper is gradually increased, and 270 DEG C when being vulcanizing press hot pressing
Good temperature.Owing to fiber is similar with the chemical constitution of matrix, different melting points therebetween is less, causes processing temperature interval relatively
Narrow, inappropriate processing temperature can make the melted of fibre orientation structure cause fiber proportion in whole material less,
The performance of material is caused large effect, the key during therefore the selection of hot pressing temperature is aramid fiber extrusion coating paper preparation process because of
Element.
Embodiment 9
PSA chopped strand is carried out pretreatment, and preprocessing process is: be 2.0 × 10 in molar concentration-3Mol/L, temperature are
Soaking 0.75h in the dodecylbenzene sodium sulfonate solution of 50 DEG C, then washing 4 times, are finally dried in 102 DEG C of vacuum drying ovens
Over dry；Weigh 1.27g pretreated over dry PSA chopped strand, fluffer is discongested 20000r, discongests concentration and control in matter
Amount percentage ratio 0.3%, then weighs 1.90g over dry meta-aramid pulp, adds in the PSA chopped strand solution through discongesting, then
Secondary discongest 20000r, discongest concentration and control in mass percent 0.3%, finally will be relative to PSA chopped strand and meta-aramid
The polyethylene glycol oxide of the 0.06% of pulp fibers absolute dry mass adds in PSA chopped strand and meta-aramid pulp mixed serum,
Discongest 20000r, discongest concentration and control, in mass percent 0.3%, to obtain suspension, the suspension obtained is injected sheet forming
In device, prepare quantification of 100g/m2Aramid paper humidity strip, then processes 2min through hydraulic press squeezing under the pressure of 0.5MPa,
Removing moisture unnecessary in wet sheet, the wet sheet after finally squeezing being processed is dried in paper baker, dries temperature
Degree is 100 DEG C, and drying time is 6.5min, obtains aramid fiber extrusion coating paper body paper；By the aramid fiber extrusion coating paper body paper that obtains first at flat board sulfur
Hot pressing 3 times on change machine, hot pressing temperature is 270 DEG C, and hot pressing time is 1min, and hot pressing pressure is 18MPa；It is placed on three roller heat the most again
Hot pressing 2 times on press, hot pressing temperature is 230 DEG C, and hot pressing pressure is 120bar, and roller speed is 1m/min, obtains tensile index and is
48.2N·m·g-1Aramid fiber extrusion coating paper.
Embodiment 10
PSA chopped strand is carried out pretreatment, and preprocessing process is: be 2.0 × 10 in molar concentration-3Mol/L, temperature are
Soaking 0.75h in the dodecylbenzene sodium sulfonate solution of 50 DEG C, then washing 4 times, are finally dried in 102 DEG C of vacuum drying ovens
Over dry；Weigh 1.27g pretreated over dry PSA chopped strand, fluffer is discongested 20000r, discongests concentration and control in matter
Amount percentage ratio 0.3%, then weighs 1.90g over dry meta-aramid pulp, adds in the PSA chopped strand solution through discongesting, then
Secondary discongest 20000r, discongest concentration and control in mass percent 0.3%, finally will be relative to PSA chopped strand and meta-aramid
The polyethylene glycol oxide of the 0.06% of pulp fibers absolute dry mass adds in PSA chopped strand and meta-aramid pulp mixed serum,
Discongest 20000r, discongest concentration and control, in mass percent 0.3%, to obtain suspension, the suspension obtained is injected sheet forming
In device, prepare quantification of 100g/m2Aramid paper humidity strip, then processes 2min through hydraulic press squeezing under the pressure of 0.5MPa,
Removing moisture unnecessary in wet sheet, the wet sheet after finally squeezing being processed is dried in paper baker, dries temperature
Degree is 100 DEG C, and drying time is 6.5min, obtains aramid fiber extrusion coating paper body paper；By the aramid fiber extrusion coating paper body paper that obtains first at flat board sulfur
Hot pressing 3 times on change machine, hot pressing temperature is 270 DEG C, and hot pressing time is 2min, and hot pressing pressure is 18MPa；It is placed on three roller heat the most again
Hot pressing 2 times on press, hot pressing temperature is 230 DEG C, and hot pressing pressure is 120bar, and roller speed is 1m/min, obtains tensile index and is
63.2N·m·g-1Aramid fiber extrusion coating paper.
Embodiment 11
PSA chopped strand is carried out pretreatment, and preprocessing process is: be 2.0 × 10 in molar concentration-3Mol/L, temperature are
Soaking 0.75h in the dodecylbenzene sodium sulfonate solution of 50 DEG C, then washing 4 times, are finally dried in 102 DEG C of vacuum drying ovens
Over dry；Weigh 1.27g pretreated over dry PSA chopped strand, fluffer is discongested 20000r, discongests concentration and control in matter
Amount percentage ratio 0.3%, then weighs 1.90g over dry meta-aramid pulp, adds in the PSA chopped strand solution through discongesting, then
Secondary discongest 20000r, discongest concentration and control in mass percent 0.3%, finally will be relative to PSA chopped strand and meta-aramid
The polyethylene glycol oxide of the 0.06% of pulp fibers absolute dry mass adds in PSA chopped strand and meta-aramid pulp mixed serum,
Discongest 20000r, discongest concentration and control, in mass percent 0.3%, to obtain suspension, the suspension obtained is injected sheet forming
In device, prepare quantification of 100g/m2Aramid paper humidity strip, then processes 2min through hydraulic press squeezing under the pressure of 0.5MPa,
Removing moisture unnecessary in wet sheet, the wet sheet after finally squeezing being processed is dried in paper baker, dries temperature
Degree is 100 DEG C, and drying time is 6.5min, obtains aramid fiber extrusion coating paper body paper；By the aramid fiber extrusion coating paper body paper that obtains first at flat board sulfur
Hot pressing 3 times on change machine, hot pressing temperature is 270 DEG C, and hot pressing time is 3min, and hot pressing pressure is 18MPa；It is placed on three roller heat the most again
Hot pressing 2 times on press, hot pressing temperature is 230 DEG C, and hot pressing pressure is 120bar, and roller speed is 1m/min, obtains tensile index and is
71.8N·m·g-1Aramid fiber extrusion coating paper.
Embodiment 12
PSA chopped strand is carried out pretreatment, and preprocessing process is: be 2.0 × 10 in molar concentration-3Mol/L, temperature are
Soaking 0.75h in the dodecylbenzene sodium sulfonate solution of 50 DEG C, then washing 4 times, are finally dried in 102 DEG C of vacuum drying ovens
Over dry；Weigh 1.27g pretreated over dry PSA chopped strand, fluffer is discongested 20000r, discongests concentration and control in matter
Amount percentage ratio 0.3%, then weighs 1.90g over dry meta-aramid pulp, adds in the PSA chopped strand solution through discongesting, then
Secondary discongest 20000r, discongest concentration and control in mass percent 0.3%, finally will be relative to PSA chopped strand and meta-aramid
The polyethylene glycol oxide of the 0.06% of pulp fibers absolute dry mass adds in PSA chopped strand and meta-aramid pulp mixed serum,
Discongest 20000r, discongest concentration and control, in mass percent 0.3%, to obtain suspension, the suspension obtained is injected sheet forming
In device, prepare quantification of 100g/m2Aramid paper humidity strip, then processes 2min through hydraulic press squeezing under the pressure of 0.5MPa,
Removing moisture unnecessary in wet sheet, the wet sheet after finally squeezing being processed is dried in paper baker, dries temperature
Degree is 100 DEG C, and drying time is 6.5min, obtains aramid fiber extrusion coating paper body paper；By the aramid fiber extrusion coating paper body paper that obtains first at flat board sulfur
Hot pressing 3 times on change machine, hot pressing temperature is 270 DEG C, and hot pressing time is 5min, and hot pressing pressure is 18MPa；It is placed on three roller heat the most again
Hot pressing 2 times on press, hot pressing temperature is 230 DEG C, and hot pressing pressure is 120bar, and roller speed is 1m/min, obtains tensile index and is
74.4N·m·g-1Aramid fiber extrusion coating paper.
In the aramid fiber extrusion coating paper preparation process of above example 6,9,10,11,12, remaining technological parameter is constant, to flat
The hot pressing time of plate vulcanizer is optimized, and the Testing index of optimization is the mensuration of tensile index, if table 2 below is optimization experiment
The impact on aramid paper strength character under different hot pressing times of middle plateform vulcanizer:
Table 2
The result optimized is as it is shown in figure 1, as shown in Figure 2, when using vulcanizing press to carry out hot pressing, interval in certain time
Under, increasing over time, the tensile index of aramid fiber extrusion coating paper is gradually increased, and when hot pressing 4min, the paper of aramid fiber extrusion coating paper
Extensional can be best.
Embodiment 13
PSA chopped strand is carried out pretreatment, and preprocessing process is: be 2.0 × 10 in molar concentration-3Mol/L, temperature are
Soaking 0.75h in the dodecylbenzene sodium sulfonate solution of 50 DEG C, then washing 4 times, are finally dried in 102 DEG C of vacuum drying ovens
Over dry；Weigh 1.27g pretreated over dry PSA chopped strand, fluffer is discongested 20000r, discongests concentration and control in matter
Amount percentage ratio 0.3%, then weighs 1.90g over dry meta-aramid pulp, adds in the PSA chopped strand solution through discongesting, then
Secondary discongest 20000r, discongest concentration and control in mass percent 0.3%, finally will be relative to PSA chopped strand and meta-aramid
The polyethylene glycol oxide of the 0.06% of pulp fibers absolute dry mass adds in PSA chopped strand and meta-aramid pulp mixed serum,
Discongest 20000r, discongest concentration and control, in mass percent 0.3%, to obtain suspension, the suspension obtained is injected sheet forming
In device, prepare quantification of 100g/m2Aramid paper humidity strip, then processes 2min through hydraulic press squeezing under the pressure of 0.5MPa,
Removing moisture unnecessary in wet sheet, the wet sheet after finally squeezing being processed is dried in paper baker, dries temperature
Degree is 100 DEG C, and drying time is 6.5min, obtains aramid fiber extrusion coating paper body paper；By the aramid fiber extrusion coating paper body paper that obtains first at flat board sulfur
Hot pressing 3 times on change machine, hot pressing temperature is 270 DEG C, and hot pressing time is 4min, and hot pressing pressure is 9MPa；It is placed on three roller heat the most again
Hot pressing 2 times on press, hot pressing temperature is 230 DEG C, and hot pressing pressure is 120bar, and roller speed is 1m/min, obtains tensile index and is
65.8N·m·g-1Aramid fiber extrusion coating paper.
Embodiment 14
PSA chopped strand is carried out pretreatment, and preprocessing process is: be 2.0 × 10 in molar concentration-3Mol/L, temperature are
Soaking 0.75h in the dodecylbenzene sodium sulfonate solution of 50 DEG C, then washing 4 times, are finally dried in 102 DEG C of vacuum drying ovens
Over dry；Weigh 1.27g pretreated over dry PSA chopped strand, fluffer is discongested 20000r, discongests concentration and control in matter
Amount percentage ratio 0.3%, then weighs 1.90g over dry meta-aramid pulp, adds in the PSA chopped strand solution through discongesting, then
Secondary discongest 20000r, discongest concentration and control in mass percent 0.3%, finally will be relative to PSA chopped strand and meta-aramid
The polyethylene glycol oxide of the 0.06% of pulp fibers absolute dry mass adds in PSA chopped strand and meta-aramid pulp mixed serum,
Discongest 20000r, discongest concentration and control, in mass percent 0.3%, to obtain suspension, the suspension obtained is injected sheet forming
In device, prepare quantification of 100g/m2Aramid paper humidity strip, then processes 2min through hydraulic press squeezing under the pressure of 0.5MPa,
Removing moisture unnecessary in wet sheet, the wet sheet after finally squeezing being processed is dried in paper baker, dries temperature
Degree is 100 DEG C, and drying time is 6.5min, obtains aramid fiber extrusion coating paper body paper；By the aramid fiber extrusion coating paper body paper that obtains first at flat board sulfur
Hot pressing 3 times on change machine, hot pressing temperature is 270 DEG C, and hot pressing time is 4min, and hot pressing pressure is 12MPa；It is placed on three roller heat the most again
Hot pressing 2 times on press, hot pressing temperature is 230 DEG C, and hot pressing pressure is 120bar, and roller speed is 1m/min, obtains tensile index and is
70.3N·m·g-1Aramid fiber extrusion coating paper.
Embodiment 15
PSA chopped strand is carried out pretreatment, and preprocessing process is: be 2.0 × 10 in molar concentration-3Mol/L, temperature are
Soaking 0.75h in the dodecylbenzene sodium sulfonate solution of 50 DEG C, then washing 4 times, are finally dried in 102 DEG C of vacuum drying ovens
Over dry；Weigh 1.27g pretreated over dry PSA chopped strand, fluffer is discongested 20000r, discongests concentration and control in matter
Amount percentage ratio 0.3%, then weighs 1.90g over dry meta-aramid pulp, adds in the PSA chopped strand solution through discongesting, then
Secondary discongest 20000r, discongest concentration and control in mass percent 0.3%, finally will be relative to PSA chopped strand and meta-aramid
The polyethylene glycol oxide of the 0.06% of pulp fibers absolute dry mass adds in PSA chopped strand and meta-aramid pulp mixed serum,
Discongest 20000r, discongest concentration and control, in mass percent 0.3%, to obtain suspension, the suspension obtained is injected sheet forming
In device, prepare quantification of 100g/m2Aramid paper humidity strip, then processes 2min through hydraulic press squeezing under the pressure of 0.5MPa,
Removing moisture unnecessary in wet sheet, the wet sheet after finally squeezing being processed is dried in paper baker, dries temperature
Degree is 100 DEG C, and drying time is 6.5min, obtains aramid fiber extrusion coating paper body paper；By the aramid fiber extrusion coating paper body paper that obtains first at flat board sulfur
Hot pressing 3 times on change machine, hot pressing temperature is 270 DEG C, and hot pressing time is 4min, and hot pressing pressure is 15MPa；It is placed on three roller heat the most again
Hot pressing 2 times on press, hot pressing temperature is 230 DEG C, and hot pressing pressure is 120bar, and roller speed is 1m/min, obtains tensile index and is
74.6N·m·g-1Aramid fiber extrusion coating paper.
Embodiment 16
PSA chopped strand is carried out pretreatment, and preprocessing process is: be 2.0 × 10 in molar concentration-3Mol/L, temperature are
Soaking 0.75h in the dodecylbenzene sodium sulfonate solution of 50 DEG C, then washing 4 times, are finally dried in 102 DEG C of vacuum drying ovens
Over dry；Weigh 1.27g pretreated over dry PSA chopped strand, fluffer is discongested 20000r, discongests concentration and control in matter
Amount percentage ratio 0.3%, then weighs 1.90g over dry meta-aramid pulp, adds in the PSA chopped strand solution through discongesting, then
Secondary discongest 20000r, discongest concentration and control in mass percent 0.3%, finally will be relative to PSA chopped strand and meta-aramid
The polyethylene glycol oxide of the 0.06% of pulp fibers absolute dry mass adds in PSA chopped strand and meta-aramid pulp mixed serum,
Discongest 20000r, discongest concentration and control, in mass percent 0.3%, to obtain suspension, the suspension obtained is injected sheet forming
In device, prepare quantification of 100g/m2Aramid paper humidity strip, then processes 2min through hydraulic press squeezing under the pressure of 0.5MPa,
Removing moisture unnecessary in wet sheet, the wet sheet after finally squeezing being processed is dried in paper baker, dries temperature
Degree is 100 DEG C, and drying time is 6.5min, obtains aramid fiber extrusion coating paper body paper；By the aramid fiber extrusion coating paper body paper that obtains first at flat board sulfur
Hot pressing 3 times on change machine, hot pressing temperature is 270 DEG C, and hot pressing time is 4min, and hot pressing pressure is 21MPa；It is placed on three roller heat the most again
Hot pressing 2 times on press, hot pressing temperature is 230 DEG C, and hot pressing pressure is 120bar, and roller speed is 1m/min, obtains tensile index and is
72.9N·m·g-1Aramid fiber extrusion coating paper.
In the aramid fiber extrusion coating paper preparation process of above example 6,13,14,15,16, remaining technological parameter is constant, to flat
The hot pressing pressure of plate vulcanizer is optimized, and the Testing index of optimization is the mensuration of tensile index, if table 3 below is optimization experiment
The impact on aramid paper strength character under different hot pressing pressures of middle plateform vulcanizer:
Table 3
The result that optimizes is as it is shown on figure 3, from the figure 3, it may be seen that use vulcanizing press when carrying out hot pressing, interval at certain pressure
Under, along with the increase of pressure, the tensile index of aramid fiber extrusion coating paper is gradually increased, and when hot pressing pressure is 18MPa, aramid fiber is combined
The paper performance of paper is best.
By permissible the drawing of above example 3～16, vulcanizing press is used to carry out hot pressing, hot pressing temperature 270 DEG C, hot pressing
When pressure 18MPa, hot pressing time 4min, in conjunction with hot pressing 2 times on three roller hot presses, hot pressing temperature is 230 DEG C, and hot pressing pressure is
120bar, roller speed is 1m/min, and aramid fiber extrusion coating paper tensile strength reaches maximum, i.e. 79.6N m g-1.Use vulcanizing press
Hot press period, aramid fiber extrusion coating paper is at temperature with pressure dual effect, and hot pressing actual temperature arranges temperature, in hot pressing higher than actual
Temperature is higher than meta pulp fibers glass transition temperature 273 DEG C, and pulp fibers melting degree is higher, and viscosity flow strengthens, closely
Be wrapped in chopped strand surface, between fiber, effective bonded area becomes big, and chopped strand interpenetrates fusion with pulp is intermolecular,
Chopped strand strengthens the boundary adhesive property formed between phase with pulp matrix phase and significantly promotes.Use three roller hot press heat
In the pressure stage, aramid fiber extrusion coating paper promotes further through hot calendered effect, surface strength of paper, and paper surface is more smooth, and evenness carries
Rise, improve paper strength performance further.Vulcanizing press hot-pressing processing is used to combine with three roller hot press hot-pressing processing
Hot pressing mode, the aramid fiber extrusion coating paper strength character prepared relatively is used alone paper after three roller hot presses and vulcanizing press hot pressing
Open its tensile index and improve 23%.
Claims (10)
1. one kind uses the method that PSA fiber prepares aramid fiber extrusion coating paper, it is characterised in that: specifically include following steps:
Step 1, carries out pretreatment to PSA chopped strand；
Step 2, will carry out discongesting for the first time through step 1 pretreated PSA chopped strand fluffer；Then meta is added
Ppta-pulp fibre, carries out secondary and discongests；Finally add dispersant, carry out third time and discongest, obtain suspension；
Step 3, suspension step 2 obtained injects in sheet forming apparatus and carries out dehydration forming, after squeezing, dried
Aramid fiber extrusion coating paper body paper；
Step 4, carries out hot-forming by the aramid fiber extrusion coating paper body paper of step 3 gained, obtains aramid fiber extrusion coating paper.
A kind of method using PSA fiber to prepare aramid fiber extrusion coating paper the most according to claim 1, it is characterised in that: described step
The preprocessing process of rapid 1 is:
It is 1.0 × 10 by PSA chopped strand in molar concentration-3Mol/L～3 × 10-3Mol/L, temperature are 40 DEG C～the ten of 60 DEG C
Dialkyl benzene sulfonic acids sodium solution soaks 0.5h～1h, then washing 3～5 times, finally at 100 DEG C～105 DEG C of vacuum drying ovens
In be dried to over dry.
A kind of method using PSA fiber to prepare aramid fiber extrusion coating paper the most according to claim 1, it is characterised in that: described step
In rapid 2, PSA chopped strand is 4:6 with the mass ratio of meta-aramid pulp fibers.
A kind of method using PSA fiber to prepare aramid fiber extrusion coating paper the most according to claim 3, it is characterised in that: described step
Dispersant in rapid 2 is polyethylene glycol oxide, and addition is relative to PSA chopped strand and meta-aramid pulp fibers absolute dry mass
0.05%～0.07%, the parameter of discongesting discongested for the first time is: 15000r～25000r discongested by fluffer；Second time is discongested
Discongesting parameter is: 15000r～25000r discongested by fluffer；The parameter of discongesting discongested of third time is: fluffer discongest 15000r～
25000r。
A kind of method using PSA fiber to prepare aramid fiber extrusion coating paper the most according to claim 1, it is characterised in that: described step
The detailed process of rapid 3 is: is injected in sheet forming apparatus by the suspension of step 2 gained, prepares quantification of 100g/m2Aramid paper
Humidity strip, then processes 1min～3min through hydraulic press squeezing, removes moisture unnecessary in wet sheet, after finally squeezing being processed
Wet sheet is dried in paper baker.
A kind of method using PSA fiber to prepare aramid fiber extrusion coating paper the most according to claim 5, it is characterised in that: described step
In rapid 3, the pressure of hydraulic press is 0.4MPa～0.6MPa.
A kind of method using PSA fiber to prepare aramid fiber extrusion coating paper the most according to claim 5, it is characterised in that: described step
In rapid 3, the drying temperature in paper baker is 95 DEG C～105 DEG C, and drying time is 5min～8min.
A kind of method using PSA fiber to prepare aramid fiber extrusion coating paper the most according to claim 5, it is characterised in that: described step
The detailed process of rapid 4 is:
First aramid fiber body paper step 3 prepared hot pressing 2～4 times on vulcanizing press, be placed on three roller hot presses the most again
Upper hot pressing 1～3 times.
A kind of method using PSA fiber to prepare aramid fiber extrusion coating paper the most according to claim 8, it is characterised in that: described step
In rapid 4, the hot compression parameters on vulcanizing press is: hot pressing temperature is 240 DEG C～290 DEG C, and hot pressing time is 1min～5min,
Hot pressing pressure is 9MPa～21MPa.
A kind of method using PSA fiber to prepare aramid fiber extrusion coating paper the most according to claim 8, it is characterised in that: described
In step 4, the hot compression parameters on three roller hot presses is: hot pressing temperature is 220 DEG C～240 DEG C, hot pressing pressure 100bar～
140bar, roller speed 0.5～1.5m/min.
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| CN107326723A (en) * | 2017-06-22 | 2017-11-07 | 陕西科技大学 | A kind of aromatic polyamide paper and preparation method thereof |
| CN107653735A (en) * | 2017-05-19 | 2018-02-02 | 丁秀臣 | A kind of aramid paper and preparation method thereof |
| CN111058337A (en) * | 2020-01-07 | 2020-04-24 | 湖南广信科技股份有限公司 | Composite insulating forming part for oil-immersed transformer and manufacturing method thereof |
| CN114108362A (en) * | 2020-09-01 | 2022-03-01 | 深圳光启尖端技术有限责任公司 | Manufacturing method of high-temperature-resistant aramid fiber composite paper wave-absorbing honeycomb |
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| CN101892611A (en) * | 2010-08-18 | 2010-11-24 | 骏源特种纸（上海）有限公司 | Processing technology of polysulfonamide insulation paper |
| CN103485234A (en) * | 2013-10-22 | 2014-01-01 | 陕西科技大学 | Preparation method of mixed fiber system aramid paper |
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| CN101063280A (en) * | 2006-04-25 | 2007-10-31 | 钟洲 | Synthetic fiber papers and manufacturing method |
| CN101892611A (en) * | 2010-08-18 | 2010-11-24 | 骏源特种纸（上海）有限公司 | Processing technology of polysulfonamide insulation paper |
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| CN107653735A (en) * | 2017-05-19 | 2018-02-02 | 丁秀臣 | A kind of aramid paper and preparation method thereof |
| CN107326723A (en) * | 2017-06-22 | 2017-11-07 | 陕西科技大学 | A kind of aromatic polyamide paper and preparation method thereof |
| CN107326723B (en) * | 2017-06-22 | 2019-07-09 | 陕西科技大学 | A kind of aromatic polyamide paper and preparation method thereof |
| CN111058337A (en) * | 2020-01-07 | 2020-04-24 | 湖南广信科技股份有限公司 | Composite insulating forming part for oil-immersed transformer and manufacturing method thereof |
| CN111058337B (en) * | 2020-01-07 | 2022-03-15 | 湖南广信科技股份有限公司 | Composite insulating forming part for oil-immersed transformer and manufacturing method thereof |
| CN114108362A (en) * | 2020-09-01 | 2022-03-01 | 深圳光启尖端技术有限责任公司 | Manufacturing method of high-temperature-resistant aramid fiber composite paper wave-absorbing honeycomb |
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