CN106696360A - Preparation method of para-aramid paper honeycomb core - Google Patents
Preparation method of para-aramid paper honeycomb core Download PDFInfo
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- CN106696360A CN106696360A CN201611161786.0A CN201611161786A CN106696360A CN 106696360 A CN106696360 A CN 106696360A CN 201611161786 A CN201611161786 A CN 201611161786A CN 106696360 A CN106696360 A CN 106696360A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
- B31D3/00—Making articles of cellular structure, e.g. insulating board
- B31D3/02—Making articles of cellular structure, e.g. insulating board honeycombed structures, i.e. the cells having an essentially hexagonal section
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
- B31D3/00—Making articles of cellular structure, e.g. insulating board
- B31D3/02—Making articles of cellular structure, e.g. insulating board honeycombed structures, i.e. the cells having an essentially hexagonal section
- B31D3/0223—Making honeycomb cores, e.g. by piling a plurality of web sections or sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
- B31D3/00—Making articles of cellular structure, e.g. insulating board
- B31D3/02—Making articles of cellular structure, e.g. insulating board honeycombed structures, i.e. the cells having an essentially hexagonal section
- B31D3/0292—Making articles of cellular structure, e.g. insulating board honeycombed structures, i.e. the cells having an essentially hexagonal section involving auxiliary operations, e.g. expanding, moistening, glue-applying, joining, controlling
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Abstract
The invention belongs to the technical field of composite material preparation, and relates to a preparation method of a para-aramid paper honeycomb core. The preparation method of the para-aramid paper honeycomb core is used for preparing a sandwich-structure composite material, and comprises the four treatment process steps of sequentially gluing and pressing para-aramid paper, stretching and setting the para-aramid paper, glue dipping and solidifying the para-aramid paper, and slicing processing the para-aramid paper. A para-aramid paper honeycomb prepared through the preparation method provided by the invention has higher specific strength and specific modulus, and a more excellent heat-resisting property; and under the same design requirement, the weight of a composite material component can be further reduced. The para-aramid paper honeycomb core prepared by adopting the method provided by the invention has higher strength and modulus, under the same mechanical property design requirement, the weight of the high-performance para-aramid paper honeycomb is reduced greatly, and the para-aramid paper honeycomb core can be widely applied in high-end fields such as aerospace.
Description
Technical field
The invention belongs to technical field of composite preparation, it is related to a kind of preparation method of p-aramid fiber paper honeycomb core material,
For the preparation of sandwich structure composite material.
Background technology
Aluminium honeycomb core material is made through operations such as gluing compacting, drawing and settings by aluminium foil, and its cost of raw material is more fragrant
Synthetic fibre paper is low, but aluminium honeycomb easily occurs electrochemical corrosion, wave transparent poor performance, in boat after being combined with carbon fiber composite panel
Empty space industry is gradually replaced by aramid fiber paper honeycomb.
Meta-aramid paper honeycomb in aerospace field because the advantages of specific strength is higher, specific modulus is larger, having been obtained for
It is widely applied, is mainly used in airframe time bearing member and inside gadget, but in main force support structure part, because component bears
Load is larger, and the cellular specific strength of meta-position aramid fiber paper is relatively low.
The content of the invention
The purpose of the present invention is directed to deficiency of the prior art, proposes that a kind of specific strength is higher, that specific modulus is bigger is right
Position aramid fiber paper honeycomb core material preparation method.
The technical scheme is that：Carried out successively using p-aramid paper gluing compacting, drawing and setting, impregnation solidification and
Piece cuts four step handling process of processing, is prepared as follows and forms：
1) gluing compacting：Equidistantly applied on the surface of p-aramid paper and stamp phenol aldehyde modified epoxy resin core bar glue, then
P-aramid paper staggered floor after multilayer gluing is overlapped, finally by the curing process of core bar glue using hot press or autoclave heat
Pressure, is obtained the folded block plate of honeycomb, and then heat pressing process solidifies 3- to preheat 15-90min at 45-135 DEG C at 135-230 DEG C
12h, hot pressing pressure is 0.15-0.8MPa；
2) drawing and setting：Honeycomb lamination is stretched, after honeycomb cell reaches the size of technological requirement, after stretching
Honeycomb is fixed in frock and is put into baking oven shapes, during heat treatment, first at 60-120 DEG C to stretching after honeycomb
Water removal 20-90min is carried out, then control temperature is incubated 10min-60min at 135-300 DEG C, and non-impregnation honeycomb block is obtained；
3) impregnation solidification：Non- impregnation honeycomb block is carried out into impregnation solidify afterwards in impregnating resin, p-aramid fiber paper wasp is obtained
Nest block, the impregnating resin includes phenolic resin and organic solvent, and the quality of phenolic resin is the 15%- for impregnating glue gross mass
60%, impregnation number of times is 1-6 times, after each impregnation, 15-60min is processed in 50-85 DEG C of baking oven, then at 90-145 DEG C
Precuring 10-45min, after last time impregnation, 60-240min is solidified at 150-200 DEG C.
4) piece cuts processing：Using the band saw of diamond material and high-power servomotor, it is right on machine to be cut in cell-specific piece
Honeycomb carries out piece and cuts, and piece cuts machine table top pace and is controlled to 40 ± 25mm/min, and band sawline speed is 5000 ± 1500mm/
min。
In step 1) in, the p-aramid paper is with para-aramid fiber and PPTA-pulp as main raw material(s) is passed through
Cross after manufacturing paper with pulp and be prepared from.
In step 1) in, the core bar glue is by matrix resin, rubber elastomer, core shell rubbers, curing agent, inorganic fills out
Material, rubber crosslinker and solvent are made, and matrix resin is made up of bisphenol A type epoxy resin and high adjacent position phenolic resin, bisphenol A-type
The mass ratio of epoxy resin and high adjacent position phenolic resin is 3:1；Curing agent is made up of dicyandiamide and the diaminourea hexichol alum of 4,4' mono-；
Rubber elastomer is made up of butyronitrile rubber and solid shuttle base butyronitrile rubber；Inorganic filler is admired by magnesia, zinc oxide or titanium dioxide
Constitute；Rubber crosslinker is cumyl peroxide；Solvent is ethyl acetate, and the range of viscosities of the core bar glue is 10s/
50ml-40s/50ml。
In step 1) in, during compacting, pressing process be 80-105 DEG C at preheat 30-50min, then at 160-200 DEG C
Solidification 4-10h, hot pressing pressure is 0.2-0.6MPa.
In step 2) in, during heat treatment, technique be 80-120 DEG C at water removal 30- is carried out to non-impregnation honeycomb block
60min, then controls temperature at 175-300 DEG C, is incubated 15min-45min.
In step 3) in, the organic solvent is alcohol, and the quality of phenolic resin is the 20%- for impregnating glue gross mass
50%.
In step 3) in, the impregnation time is 10min-60min, and impregnation number of times is 1-4 times.
In step 3) in, after preferred handling process is each impregnation, 20-40min is processed in 60-80 DEG C of baking oven, so
The precuring 10-40min at 105-135 DEG C, after last time impregnation, 90-180min is solidified at 160-185 DEG C afterwards.
In step 4) in, high-power servomotor can increase moment of torsion when piece is cut, and table top pace preferably controls 35 ±
In the range of 15mm/min, band sawline speed is preferably controlled in the range of 4000 ± 500mm/min.
The present invention has the advantage that and beneficial effect, the cellular specific strength of p-aramid paper prepared by the present invention, compares mould
Amount is higher, and heat resistance is more excellent, under identical design requirement, the weight of composite element can be made further to decline.
(1) it is relatively low for meta-aramid paper honeycomb intensity and temperature in use, propose a kind of p-aramid fiber paper honeycomb core
The preparation method of material.The molecular structure amide groups of the main raw material(s) p-aramid fiber of p-aramid paper used by p-aramid fiber paper honeycomb
Cumularsharolith aligns (Isosorbide-5-Nitrae position) in phenyl ring, and molecule chain rigidity is bigger, glass transition temperature more than 300 DEG C, made p-aramid fiber
Paper honeycomb has mechanical property and temperature resistant grade higher compared with meta-aramid paper honeycomb.
(2), compared to meta-aramid paper honeycomb, it is used on aviation aircraft can for p-aramid fiber paper honeycomb of the invention
Construction weight is further reduced, while improving integrality performance of the structure.
(3) p-aramid fiber paper honeycomb core material of the invention, compared to meta-aramid paper honeycomb core material and aluminium honeycomb core material, opens up
Application of the comb core in aerospace field wide, for the development of aerospace field provides certain support.
Brief description of the drawings
Fig. 1 hexagonal honeycomb cores schematic diagram (embodiment 1 and 2).
Fig. 2 overstretchings type comb core schematic diagram (embodiment 3).
Specific embodiment
Carry out gluing compacting, drawing and setting, impregnation solidification and piece successively using p-aramid paper and cut science and engineering at four steps of processing
Skill, is prepared as follows and forms：
1) gluing compacting：Equidistantly applied on the surface of p-aramid paper and stamp phenol aldehyde modified epoxy resin core bar glue, then
P-aramid paper staggered floor after multilayer gluing is overlapped, finally by the curing process of core bar glue using hot press or autoclave heat
Pressure, is obtained the folded block plate of honeycomb, and then heat pressing process solidifies 3- to preheat 15-90min at 45-135 DEG C at 135-230 DEG C
12h, hot pressing pressure is 0.15-0.8MPa；
2) drawing and setting：Honeycomb lamination is stretched, after honeycomb cell reaches the size of technological requirement, after stretching
Honeycomb is fixed in frock and is put into baking oven shapes, during heat treatment, first at 60-120 DEG C to stretching after honeycomb
Water removal 20-90min is carried out, then control temperature is incubated 10min-60min at 135-300 DEG C, and non-impregnation honeycomb block is obtained；
3) impregnation solidification：Non- impregnation honeycomb block is carried out into impregnation solidify afterwards in impregnating resin, p-aramid fiber paper wasp is obtained
Nest block, the impregnating resin includes phenolic resin and organic solvent, and the quality of phenolic resin is the 15%- for impregnating glue gross mass
60%, impregnation number of times is 1-6 times, after each impregnation, 15-60min is processed in 50-85 DEG C of baking oven, then at 90-145 DEG C
Precuring 10-45min, after last time impregnation, 60-240min is solidified at 150-200 DEG C.
4) piece cuts processing：Using diamond material band saw and high-power servomotor, cut on machine to honeybee in cell-specific piece
Nest carries out piece and cuts, and piece cuts machine table top pace and is controlled to 40 ± 25mm/min, and band sawline speed is 5000 ± 1500mm/min.
As a kind of preferred scheme of the invention, in step 1) in, the core bar glue is by matrix resin, caoutchouc elasticity
Body, core shell rubbers, curing agent, inorganic filler, rubber crosslinker and solvent are made, matrix resin by bisphenol A type epoxy resin and
High adjacent position phenolic resin is constituted, and the mass ratio of bisphenol A type epoxy resin and high adjacent position phenolic resin is 3:1；Curing agent is by double cyanogen
Amine and the diaminourea hexichol alum of 4,4' mono- are constituted；Rubber elastomer is made up of butyronitrile rubber and solid shuttle base butyronitrile rubber；It is inorganic to fill out
Material is admired by magnesia, zinc oxide or titanium dioxide and constituted；Rubber crosslinker is cumyl peroxide；Solvent is ethyl acetate, institute
The range of viscosities for stating core bar glue is 10s/50ml-40s/50ml.
As a kind of preferred scheme of the invention, in step 1) in, during compacting, pressing process is preheating at 80-105 DEG C
30-50min, then solidifies 4-10h at 160-200 DEG C, and hot pressing pressure is 0.2-0.6MPa.
As a kind of preferred scheme of the invention, in step 2) in, during heat treatment, technique is 80-120 DEG C
Under water removal 30-60min is carried out to non-impregnation honeycomb block, then control temperature at 175-300 DEG C, be incubated 15min-45min.
As a kind of preferred scheme of the invention, in step 3) in, the impregnating resin includes phenolic resin and organic
Solvent；Wherein, the quality of the phenolic resin is the 20%-50% for impregnating glue gross mass.
As a kind of preferred scheme of the invention, it is characterised in that high temperature core bar glue matrix resin used is by bisphenol A-type
Epoxy resin and high adjacent position phenolic resin are constituted, and the mass ratio of bisphenol A type epoxy resin and high adjacent position phenolic resin is 3:1；Gu
Agent is made up of dicyandiamide and the diaminourea hexichol alum of 4,4' mono-；Rubber elastomer is by butyronitrile rubber and solid shuttle base butyronitrile rubber group
Into；Inorganic filler is admired by magnesia, zinc oxide or titanium dioxide and constituted；Rubber crosslinker is cumyl peroxide；Solvent is second
Acetoacetic ester, the range of viscosities of the core bar glue is 10s/50ml-40s/50ml.
As a kind of preferred scheme of the invention, in step 3) in, the organic solvent is alcohol, the matter of phenolic resin
Measure to impregnate the 20%-50% of glue gross mass.
As a kind of preferred scheme of the invention, in step 3) in, the impregnation time is 10min-60min, impregnation number of times
For 1-4 times.
As a kind of preferred scheme of the invention, in step 3) in, after handling process is each impregnation, at 60-80 DEG C
20-40min is processed in baking oven, then the precuring 10-40min at 105-135 DEG C, after last time impregnation, at 160-185 DEG C
Lower solidification 90-180min.
As a kind of preferred scheme of the invention, step 4) in, high-power servomotor can increase moment of torsion when piece is cut,
Table top pace is controlled in the range of 35 ± 15mm/min, and band sawline speed control is in the range of 4000 ± 500mm/min.
Embodiment 1
It is the regular hexagon p-aramid fiber paper honeycomb core of 1.83mm to prepare cell length of side B.Comprise the following steps that：
(1) p-aramid paper with thickness as 0.05mm applies print epoxy first on glue spreader as raw material to aramid paper
Resin core bar glue, cuts off aramid paper according to target length after gluing, the p-aramid paper after multilayer gluing is misplaced and is overlapped, system
Obtain p-aramid fiber stacked paper sheet.Heat is carried out to obtained lamination according to the curing process of core bar glue using hot press after the completion of overlapping
Pressure, is made honeycomb lamination after being solidified.Core bar glue is Modified phenolic epoxy resin liquid glue, is increasing with extraordinary nitrile rubber
Tough material, mixed aromatic diamine is curing agent, is equipped with appropriate solvent dissolving and forms.Gelatin viscosity is 30s/ml.During hot-press solidifying, first
30min is preheated at 70 DEG C, 7h is then solidified at 180 DEG C, hot pressing pressure is 0.4MPa.
(2) honeycomb lamination is stretched with stretching-machine with the draw speed of 80mm/min, as the inscribed circle diameter D of cell
After being stretched in the range of 2.85-3.49mm, lamination after stretching is fixed in frock, is put into sizing in baking oven, during sizing first
30min is removed water at 100 DEG C, then shape 40min at 270 DEG C, non-impregnation honeycomb block is obtained.
(3) will non-impregnation honeycomb block be put into steeping vat in carry out impregnation, honeycomb solidification is carried out after the completion of impregnation；The dipping
Resin includes phenolic resin and organic solvent；Wherein, the quality of the phenolic resin is the 20% of impregnating resin gross mass, organic
Solvent is edible alcohol.2 impregnations are carried out in present case to honeycomb block, the impregnation time is 30min, at 130 DEG C after each impregnation
10min is dried in baking oven, after the completion of last time impregnation, 2h is solidified at 175 DEG C.
(4) carry out piece to the p-aramid fiber paper honeycomb after impregnation to cut, obtain density for 48kg/m3P-aramid fiber paper honeycomb
Core.Cut the band for using in process sawtooth to be diamond material for described to saw, table top pace is 30mm/min, band saw
Linear velocity is 4000mm/min.
Measured, the stable type compressive strength of the density p-aramid fiber paper honeycomb core material is 2.8MPa, about same specification
1.3 times of meta-aramid paper honeycomb compressive strength；L is 1.6MPa to shear strength, and W is to shear strength for 1.0MPa is about with rule
1.2 times of lattice meta-position aramid fiber paper honeycomb shear strength, L is 110MPa to modulus of shearing, and W is 55MPa to modulus of shearing, about together
2.0 times of specification meta-aramid paper honeycomb modulus of shearing.
Embodiment 2
It is the regular hexagon p-aramid fiber paper honeycomb core of 2.75mm to prepare cell length of side B.Comprise the following steps that：
(1) p-aramid paper with thickness as 0.05mm carries out gluing first on glue spreader as raw material to aramid paper,
Size after gluing as requested cuts off aramid paper, the p-aramid paper after multilayer gluing is misplaced and is overlapped, after the completion of overlapping
Hot pressing is carried out to lamination using hot press, honeycomb lamination is made after being solidified according to the curing process of core bar glue.Core bar glue is
Modified phenolic epoxy resin, by extraordinary nitrile rubber be toughening material, mixed aromatic diamine is curing agent, be equipped with appropriate solvent dissolving and
Into liquid glue, gelatin viscosity is 25s/ml.During hot-press solidifying, 30min is preheated at 70 DEG C first, then at 180 DEG C
Solidification 6h, hot pressing pressure position 0.4MPa.
(2) honeycomb lamination is stretched with stretching-machine with the draw speed of 80-100mm/min, when the inscribed circle of cell
After diameter D is stretched in the range of 4.29-5.24mm, lamination after stretching is put into baking oven and is shaped, during sizing first at 100 DEG C
Water removal 30min, then shape 40min at 270 DEG C, and non-impregnation honeycomb block is obtained.
(3) will non-impregnation honeycomb block be put into steeping vat in carry out impregnation, honeycomb solidification is carried out after the completion of impregnation；The dipping
Resin includes phenolic resin and organic solvent；Wherein, the quality of the phenolic resin is the 25% of impregnating resin gross mass, organic
Solvent is edible alcohol.1 impregnation is carried out in present case to honeycomb block, the impregnation time is 30min, after impregnation in 70 DEG C of baking ovens
Drying 30min, then solidifies 2h at 175 DEG C.
(4) carry out piece to the p-aramid fiber paper honeycomb after impregnation to cut, obtain density for 32kg/m3P-aramid fiber paper honeycomb
Core.Cut the novel belt for using in process sawtooth to be diamond material for described to saw, table top pace is 35mm/min,
Band sawline speed is 4000mm/min.
Measured, the compressive strength of the density p-aramid fiber paper honeycomb core material is 1.1MPa, about same specification meta virtue
1.2 times of synthetic fibre paper honeycomb compressive strength；L is 0.9MPa to shear strength, and W is to shear strength for 0.5MPa is about same specification meta
1.2 times of aramid fiber paper honeycomb shear strength, L is 65MPa to modulus of shearing, and W is 30MPa to modulus of shearing, about between same specification
1.8 times of position aramid fiber paper honeycomb modulus of shearing.
Embodiment 3
It is the overstretching type p-aramid fiber paper honeycomb core of 2.75mm to prepare cell length of side B.Comprise the following steps that：
(1) p-aramid paper with thickness as 0.05mm carries out gluing first on glue spreader as raw material to aramid paper,
Size after gluing as requested cuts off aramid paper, the p-aramid paper after multilayer gluing is misplaced and is overlapped, after the completion of overlapping
Hot pressing is carried out to lamination using hot press, honeycomb lamination is made after being solidified according to the curing process of core bar glue.Core bar glue is
Modified phenolic epoxy resin, by extraordinary nitrile rubber be toughening material, mixed aromatic diamine is curing agent, be equipped with appropriate solvent dissolving and
Into liquid glue, gelatin viscosity is 25s/ml.During hot-press solidifying, 30min is preheated at 70 DEG C first, then at 180 DEG C
Solidification 6h, hot pressing pressure position 0.4MPa.
(2) honeycomb lamination is stretched with stretching-machine with the draw speed of 40-100mm/min, when the inscribed circle of cell
When diameter D is less than 4.76mm, draw speed is 80-100mm/min；After inscribed circle diameter D >=4.76mm, draw speed is reduced extremely
40-60mm/min, until non-impregnation honeycomb W direction 254mm cell numbers long reach 45, baking oven is put into by lamination after stretching
Middle sizing, removes water 30min at 100 DEG C first during sizing, then shape 40min at 270 DEG C, and non-impregnation honeycomb block is obtained.
(3) will non-impregnation honeycomb block be put into steeping vat in carry out impregnation, honeycomb solidification is carried out after the completion of impregnation；The dipping
Resin includes phenolic resin and organic solvent；Wherein, the quality of the phenolic resin is the 30% of impregnating resin gross mass, organic
Solvent is edible alcohol.1 impregnation is carried out in present case to honeycomb block, the impregnation time is 30min, after impregnation in 70 DEG C of baking ovens
Drying 30min, then solidifies 2h at 175 DEG C.
(4) carry out piece to the p-aramid fiber paper honeycomb after impregnation to cut, obtain density for 40kg/m3P-aramid fiber paper honeycomb
Core.Cut the band for using in process sawtooth to be diamond material for described to saw, table top pace is 30mm/min, band saw
Linear velocity is 3800mm/min.
Measured, the compressive strength of the density p-aramid fiber paper honeycomb core material is 1.6MPa, about same specification meta virtue
1.2 times of synthetic fibre paper honeycomb compressive strength, L is 0.8MPa to shear strength, and W is to shear strength for 1.0MPa is about same specification meta
1.3 times of aramid fiber paper honeycomb shear strength, L is 50MPa to modulus of shearing, and W is 75MPa to modulus of shearing, about between same specification
1.8 times of position aramid fiber paper honeycomb modulus of shearing, and the cellular L directions (longitudinal direction) can carry out deep camber shaping.
Claims (9)
1. a kind of preparation method of p-aramid fiber paper honeycomb core material, it is characterised in that carry out gluing successively using p-aramid paper
Compacting, drawing and setting, impregnation solidification and piece cut four step handling process of processing, are prepared as follows and form：
1) gluing compacting：Equidistantly applied on the surface of p-aramid paper and stamp phenol aldehyde modified epoxy resin core bar glue, then will be many
P-aramid paper staggered floor overlapping after layer gluing, finally utilizes hot press or autoclave hot pressing, system by the curing process of core bar glue
The folded block plate of honeycomb is obtained, then heat pressing process solidifies 3-12h, hot pressing to preheat 15-90min at 45-135 DEG C at 135-230 DEG C
Pressure is 0.15-0.8MPa；
2) drawing and setting：Honeycomb lamination is stretched, after honeycomb cell reaches the size of technological requirement, by honeycomb after stretching
Be fixed in frock and be put into baking oven and shape, during heat treatment, first at 60-120 DEG C to stretching after honeycomb carry out
Water removal 20-90min, then at 135-300 DEG C, insulation 10min-60min is obtained non-impregnation honeycomb block to control temperature；
3) impregnation solidification：Non- impregnation honeycomb block is carried out into impregnation solidify afterwards in impregnating resin, p-aramid paper honeycomb block is obtained,
The impregnating resin includes phenolic resin and organic solvent, and the quality of phenolic resin is the 15%-60% for impregnating glue gross mass,
Impregnation number of times is 1-6 times, after each impregnation, 15-60min is processed in 50-85 DEG C of baking oven, then the precuring at 90-145 DEG C
10-45min, after last time impregnation, 60-240min is solidified at 150-200 DEG C.
4) piece cuts processing：Using the band saw of diamond material and high-power servomotor, cut on machine to honeycomb in cell-specific piece
Carry out piece to cut, piece cuts machine table top pace and is controlled to 40 ± 25mm/min, band sawline speed is 5000 ± 1500mm/min.
2. the preparation method of p-aramid fiber paper honeycomb core material according to claim 1, it is characterised in that：In step 1) in,
The p-aramid paper is prepared from after manufacturing paper with pulp as main raw material(s) with para-aramid fiber and PPTA-pulp.
3. the preparation method of p-aramid fiber paper honeycomb core material according to claim 1, it is characterised in that：In step 1) in,
The core bar glue is by matrix resin, rubber elastomer, core shell rubbers, curing agent, inorganic filler, rubber crosslinker and solvent system
Into matrix resin is made up of bisphenol A type epoxy resin and high adjacent position phenolic resin, bisphenol A type epoxy resin and ortho position phenolic aldehyde high
The mass ratio of resin is 3:1；Curing agent is made up of dicyandiamide and the diaminourea hexichol alum of 4,4' mono-；Rubber elastomer is by butyronitrile rubber
Constituted with solid shuttle base butyronitrile rubber；Inorganic filler is admired by magnesia, zinc oxide or titanium dioxide and constituted；Rubber crosslinker is peroxide
Change diisopropylbenzene (DIPB)；Solvent is ethyl acetate, and the range of viscosities of the core bar glue is 10s/50ml-40s/50ml.
4. the preparation method of p-aramid fiber paper honeycomb core material according to claim 1, it is characterised in that：In step 1) in,
During compacting, then pressing process solidifies 4-10h to preheat 30-50min at 80-105 DEG C at 160-200 DEG C, and hot pressing pressure is
0.2-0.6MPa。
5. the preparation method of high-performance p-aramid fiber paper honeycomb core material according to claim 2, it is characterised in that：In step
2) in, during heat treatment, technique is then controlled to carry out water removal 30-60min to non-impregnation honeycomb block at 80-120 DEG C
Temperature is incubated 15min-45min at 175-300 DEG C.
6. the preparation method of p-aramid fiber paper honeycomb core material according to claim 1, it is characterised in that：In step 3) in,
The organic solvent is alcohol, and the quality of phenolic resin is the 20%-50% for impregnating glue gross mass.
7. the preparation method of p-aramid fiber paper honeycomb core material according to claim 1, it is characterised in that：In step 4) in,
High-power servomotor can increase moment of torsion when piece is cut, and table top pace is preferably controlled in the range of 35 ± 15mm/min, band saw
Linear velocity is preferably controlled in the range of 4000 ± 500mm/min.
8. the preparation method of p-aramid fiber paper honeycomb core material according to claim 1, it is characterised in that：In step 3) in,
The impregnation time is 10min-60min, and impregnation number of times is 1-4 times.
9. the preparation method of p-aramid fiber paper honeycomb core material according to claim 1, it is characterised in that：In step 3) in,
After preferably handling process is each impregnation, 20-40min is processed in 60-80 DEG C of baking oven, it is then pre- solid at 105-135 DEG C
Change 10-40min, after last time impregnation, 90-180min is solidified at 160-185 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611161786.0A CN106696360A (en) | 2016-12-15 | 2016-12-15 | Preparation method of para-aramid paper honeycomb core |
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| CN201611161786.0A CN106696360A (en) | 2016-12-15 | 2016-12-15 | Preparation method of para-aramid paper honeycomb core |
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| CN201611161786.0A Pending CN106696360A (en) | 2016-12-15 | 2016-12-15 | Preparation method of para-aramid paper honeycomb core |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107053769A (en) * | 2017-06-05 | 2017-08-18 | 宜昌和达利复合材料股份公司 | Aerospace craft special type aramid fiber paper honeycomb core material |
| CN107379644A (en) * | 2017-07-26 | 2017-11-24 | 河北科技大学 | A kind of method for preparing carbon fiber comb core |
| CN108177393A (en) * | 2017-12-30 | 2018-06-19 | 嘉兴雅港复合材料有限公司 | A kind of low cost paper honeycomb core and its manufacturing method |
| CN108215339A (en) * | 2017-12-30 | 2018-06-29 | 嘉兴雅港复合材料有限公司 | A kind of high intensity aramid fiber paper honeycomb core and its manufacturing method |
| CN108481820A (en) * | 2018-01-25 | 2018-09-04 | 苏州芳磊蜂窝复合材料有限公司 | A kind of high flat crushing strength paper honeycomb and preparation method thereof |
| CN108517715A (en) * | 2018-04-03 | 2018-09-11 | 东华大学 | A kind of paper honeycomb core material impregnant and its application |
| CN109333870A (en) * | 2018-12-05 | 2019-02-15 | 长春珑鑫新材料有限公司 | A kind of profile and preparation method of waste material and waste liquid preparation by being generated in aramid fiber paper honeycomb and prepreg production process |
| CN109572065A (en) * | 2018-12-19 | 2019-04-05 | 中航复合材料有限责任公司 | A kind of high-temperature resistant aramid fiber paper honeycomb core material and preparation method thereof |
| CN109722940A (en) * | 2018-12-19 | 2019-05-07 | 中航复合材料有限责任公司 | A kind of honeycomb impregnating resin, honeycomb and cellular preparation method |
| CN110884226A (en) * | 2019-12-09 | 2020-03-17 | 中航复合材料有限责任公司 | Preparation method of multi-order density paper honeycomb core material |
| CN111057371A (en) * | 2019-12-17 | 2020-04-24 | 中国航空工业集团公司济南特种结构研究所 | Light low-loss honeycomb core material for radome and preparation method thereof |
| CN111421898A (en) * | 2020-04-01 | 2020-07-17 | 南京南大波平电子信息有限公司 | Preparation method of light flexible high-temperature-resistant honeycomb core material |
| CN113211882A (en) * | 2021-05-12 | 2021-08-06 | 嘉兴雅港复合材料有限公司 | Manufacturing method of flexible honeycomb |
| CN113290944A (en) * | 2021-05-31 | 2021-08-24 | 芜湖创联新材料科技有限公司 | Method for manufacturing aramid paper honeycomb with uniform density |
| CN113547822A (en) * | 2021-06-17 | 2021-10-26 | 武汉海威船舶与海洋工程科技有限公司 | Radar wave-absorbing structure and preparation method thereof |
| CN114228258A (en) * | 2021-12-17 | 2022-03-25 | 芜湖创联新材料科技有限公司 | Paper honeycomb capable of improving node strength and gum dipping appearance and preparation method thereof |
| CN114497575A (en) * | 2022-01-18 | 2022-05-13 | 山东仁丰特种材料股份有限公司 | Honeycomb electrode and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107053769A (en) * | 2017-06-05 | 2017-08-18 | 宜昌和达利复合材料股份公司 | Aerospace craft special type aramid fiber paper honeycomb core material |
| CN107379644A (en) * | 2017-07-26 | 2017-11-24 | 河北科技大学 | A kind of method for preparing carbon fiber comb core |
| CN108177393B (en) * | 2017-12-30 | 2020-03-31 | 嘉兴雅港复合材料有限公司 | Method for manufacturing low-cost paper honeycomb core |
| CN108177393A (en) * | 2017-12-30 | 2018-06-19 | 嘉兴雅港复合材料有限公司 | A kind of low cost paper honeycomb core and its manufacturing method |
| CN108215339A (en) * | 2017-12-30 | 2018-06-29 | 嘉兴雅港复合材料有限公司 | A kind of high intensity aramid fiber paper honeycomb core and its manufacturing method |
| CN108215339B (en) * | 2017-12-30 | 2020-04-21 | 嘉兴雅港复合材料有限公司 | High-strength aramid fiber paper honeycomb core and manufacturing method thereof |
| CN108481820A (en) * | 2018-01-25 | 2018-09-04 | 苏州芳磊蜂窝复合材料有限公司 | A kind of high flat crushing strength paper honeycomb and preparation method thereof |
| CN108517715A (en) * | 2018-04-03 | 2018-09-11 | 东华大学 | A kind of paper honeycomb core material impregnant and its application |
| CN109333870A (en) * | 2018-12-05 | 2019-02-15 | 长春珑鑫新材料有限公司 | A kind of profile and preparation method of waste material and waste liquid preparation by being generated in aramid fiber paper honeycomb and prepreg production process |
| CN109722940A (en) * | 2018-12-19 | 2019-05-07 | 中航复合材料有限责任公司 | A kind of honeycomb impregnating resin, honeycomb and cellular preparation method |
| CN109572065A (en) * | 2018-12-19 | 2019-04-05 | 中航复合材料有限责任公司 | A kind of high-temperature resistant aramid fiber paper honeycomb core material and preparation method thereof |
| CN110884226A (en) * | 2019-12-09 | 2020-03-17 | 中航复合材料有限责任公司 | Preparation method of multi-order density paper honeycomb core material |
| CN111057371A (en) * | 2019-12-17 | 2020-04-24 | 中国航空工业集团公司济南特种结构研究所 | Light low-loss honeycomb core material for radome and preparation method thereof |
| CN111421898A (en) * | 2020-04-01 | 2020-07-17 | 南京南大波平电子信息有限公司 | Preparation method of light flexible high-temperature-resistant honeycomb core material |
| CN113211882A (en) * | 2021-05-12 | 2021-08-06 | 嘉兴雅港复合材料有限公司 | Manufacturing method of flexible honeycomb |
| CN113290944A (en) * | 2021-05-31 | 2021-08-24 | 芜湖创联新材料科技有限公司 | Method for manufacturing aramid paper honeycomb with uniform density |
| CN113547822A (en) * | 2021-06-17 | 2021-10-26 | 武汉海威船舶与海洋工程科技有限公司 | Radar wave-absorbing structure and preparation method thereof |
| CN114228258A (en) * | 2021-12-17 | 2022-03-25 | 芜湖创联新材料科技有限公司 | Paper honeycomb capable of improving node strength and gum dipping appearance and preparation method thereof |
| CN114497575A (en) * | 2022-01-18 | 2022-05-13 | 山东仁丰特种材料股份有限公司 | Honeycomb electrode and preparation method thereof |
| CN114497575B (en) * | 2022-01-18 | 2023-12-22 | 山东仁丰特种材料股份有限公司 | Honeycomb electrode and preparation method thereof |
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Application publication date: 20170524 |