CN103174053A - Production method for aramid fiber 1414 paper substrate material - Google Patents
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Abstract
The invention relates to a production method for aramid fiber 1414 paper substrate material, which comprises the following steps of uniformly mixing aramid fiber 1414 chopped fiber size, modified thermoplasticity fiber size and aramid fiber 1414 pulp fiber size and then defibering; adding maleic anhydride-acrylic copolymer for mixed pulp dispersing; then regulating the concentration of the pulp and forming and hot pressing the obtained pulp suspension through manufacture paper with pulp so as to obtain aramid fiber 1414 paper substrate body paper; dipping the aramid fiber 1414 paper substrate body paper in polyimide resin glue solution, and removing volatile solvent after drying so as to obtain the aramid fiber 1414 paper substrate material. The preparation method is environment-friendly, metal ion can be prevented from contaminating the fiber again, the problem of a conventional dispersing agent generating bubbles in manufacture paper with pulp process is solved, the defect of adding a third fiber and organic resin alone is overcome, the physical property, resistance to high temperature and insulating property of the produced end product paper are greatly improved, and the functional index of the high performance aramid fiber 1414 paper substrate material can be fully achieved.
Description
Technical field
The invention belongs to field of papermaking, be specifically related to a kind of production method of Fanglun l414 paper base material.
Background technology
Aramid fiber is prepared from the aramid paper sill by the papermaking wet therapy forming process, has light specific gravity, and specific strength, specific stiffness are high, shock resistance, high temperature resistant, the characteristics such as outstanding corrosion resistance and saturating Electromagnetic performance are widely used in the high-tech sectors such as Aero-Space and electric insulation.Compare with meta-position aramid fiber paper, the Fanglun l414 paper base material is chemical inertness because of fiber molecule chain rigidity structure and fiber surface, lack effective combination between fiber, cause its mechanical property relatively poor, can not demonstrate fully that fiber itself is high-strength, the characteristics of Gao Mo, process therefore need to carry out special enhancing.At present the Fanglun l414 paper base material is strengthened the following two kinds of approach of having of processing: the one, strengthen through hot pressing again after adopting polymer fine strip body (another kind of fiber) and Fanglun l414 staple fiber to join to copy; Another kind is to add organic resin by coating or impregnating mode to strengthen as adhesive.Above-mentioned two kinds of approach adopt is the method for operation separately, the method for this independent operation can to become Mechanical strength of paper and and dielectric properties cause certain damage, easily increase the space of aramid fiber paper, reduce insulating properties and the resistance to elevated temperatures of paper.
Summary of the invention
The invention provides a kind of environment-protecting asepsis, can satisfy the production method of Fanglun l414 paper base material of the Functional Requirement of paper.
In order to achieve the above object, the technical solution used in the present invention comprises the following steps:
1) the Fanglun l414 staple fiber is immersed in agitator treating in sodium dodecyl benzenylsulfonate solution, until remove the impurity on Fanglun l414 staple fiber surface, then clean the sodium dodecyl benzenylsulfonate solution in the Fanglun l414 staple fiber, then discongest, namely get Fanglun l414 staple fiber slurry;
2) with the modified thermoplastic fiber impregnation in hot ethanol to wash away surperficial oil stain, then discongest, namely get the modified thermoplastic fibre stuff;
3) then the Fanglun l414 pulp is pulled an oar processing discongests, and namely gets Fanglun l414 pulp fibers slurry;
4) after being mixed, Fanglun l414 staple fiber slurry, modified thermoplastic fibre stuff and Fanglun l414 pulp fibers slurry discongest, then adding copolymer of maleic anhydride and acrylic acid to mix slurry disperses, adding water adjustment pulp quality concentration is 0.02～0.12% again, obtains pulp suspension; Pulp suspension is through shaping, the hot pressing of manufacturing paper with pulp, and getting is quantitatively 40～120g/m
2Fanglun l414 paper substrate body paper; Wherein, the addition of copolymer of maleic anhydride and acrylic acid be the Fanglun l414 staple fiber the bone dry fiber quality 0.4～1.0%;
5) under environment under room temperature, normal pressure, Fanglun l414 paper substrate body paper is flooded in the polyimide resin glue, and pickup is 10～20%, then dry to remove after dipping volatile solvent in Fanglun l414 paper substrate body paper, namely get the Fanglun l414 paper base material.
In described step 1), the concentration of sodium dodecyl benzenylsulfonate solution is 1.2 * 10
-3Mol/L discongests and adopts trough-style pulp beater to realize, and discongests concentration and be controlled at 0.4～2%.
The temperature of the hot ethanol described step 2) is 30～60 ℃, and the mass concentration of hot ethanol is 12%, discongests and adopts trough-style pulp beater to realize, and discongest concentration and be controlled at 0.5～2%.
Described step 2) in, the modified thermoplastic fiber is polyester fiber or resin fibre.
Described step 3) adopts the trough-style pulp beater processing of pulling an oar, and beating degree is controlled at 30～60 ° of SR, discongests concentration and is controlled at 0.5～2%.
In described step 4), the mass ratio of Fanglun l414 staple fiber slurry, modified thermoplastic fibre stuff and Fanglun l414 pulp fibers slurry is (30～40): (5～20): (40～60), and discongest concentration and be controlled at 0.6～1.8%.
The described step 4) concrete steps that are shaped of manufacturing paper with pulp are: with the net part forming of pulp suspension at oblique net paper machine, press dewatering 3～5min under the squeeze force of 2～5MPa then, then under 80～120 ℃ dry 5～10min.
In described step 4), pulp suspension is 0.2～0.8% in the online concentration of oblique net paper machine wet end.
In described step 4), hot pressing pressure is controlled at 10～16MPa, and hot pressing temperature is 100～240 ℃, hot pressing number of times 1～4 time.
In described step 5), the mass concentration of polyimide resin glue is controlled at 10～15%.
Compared with prior art, beneficial effect of the present invention is:
One, the dispersant that adopts of the present invention is the copolymer of maleic anhydride and acrylic acid that existing dispersiveness has again chelating, has avoided on the one hand the air bubble problem of conventional dispersant in the process of manufacturing paper with pulp, on the other hand can demineralized water, and to the Ca in slurry liquid
2+, Mg
2+, Fe
2+Produce chelating ability Deng metal ion, prevent that metal ion is to the pollution again of fiber.Two, the organic resin of the present invention's employing is the polyimides glue, and is nontoxic, pollution-free in whole production process, is a kind of method of environmental protection.Three, the present invention makes up the shortcoming of adding separately the third fiber and organic resin in prior art, tensile index, tear index, compressive resistance, resistance to elevated temperatures and the insulating properties of the Fanglun l414 paper base material that makes all significantly increase, and satisfy its functional attributes of high-performance Fanglun l414 paper base material fully.
Further, production technology of the present invention is simple, does not need to use the equipment of complex and expensive, just can realize the production of Fanglun l414 paper base material; And the online concentration of oblique net paper machine wet end is controlled at 0.2～0.8%, and the concentration of online belongs to low dense scope less than 1%, so what the present invention adopted is the low dense forming technique of oblique net paper machine.The present invention hangs down by oblique net paper machine physical strength, heat resistance and the anti-flammability that dense forming technique can significantly improve the p-aramid fiber paper, has reduced simultaneously the disconnected paper when manufacturing paper with pulp, and improves paper machine speed and production efficiency.
The specific embodiment
Embodiment 1:
1) the Fanglun l414 staple fiber being immersed in concentration is 1.2 * 10
-3Agitator treating 30min in the sodium dodecyl benzenylsulfonate solution of mol/L to remove the impurity on Fanglun l414 staple fiber surface, then cleans the sodium dodecyl benzenylsulfonate solution in the Fanglun l414 staple fiber; The recycling trough-style pulp beater is discongested, and discongests concentration and is controlled at 0.4%, namely gets Fanglun l414 staple fiber slurry; Wherein, the compound method of sodium dodecyl benzenylsulfonate solution is: in the hot water of 60 ℃, being mixed with concentration is 1.2 * 10 with the sodium dodecyl benzenylsulfonate powder dissolution
-3The sodium dodecyl benzenylsulfonate solution of mol/L;
2) polyester fiber being immersed in temperature is that 30 ℃, mass concentration are to process 20min in 12% hot ethanol, to wash away surperficial oil stain, then utilizes trough-style pulp beater to discongest, and discongests concentration and is controlled at 0.6%, namely gets the polyester fiber slurry;
3) with the Fanglun l414 pulp with the trough-style pulp beater processing of pulling an oar, beating degree is controlled at 35 ° of SR, then discongests, and discongests concentration and is controlled at 0.5%, namely gets Fanglun l414 pulp fibers slurry;
4) press mass fraction, after being mixed, the Fanglun l414 pulp fibers slurry of the Fanglun l414 staple fiber slurries of 30 parts, the polyester fiber slurry of 10 parts and 60 parts discongests, discongest concentration and be controlled at 0.8%, then adding copolymer of maleic anhydride and acrylic acid to mix slurry disperses, adding water adjustment pulp quality concentration is 0.08% again, obtains pulp suspension; With the pulp suspension shaping of manufacturing paper with pulp, then carry out hot pressing on hot press, namely get and quantitatively be 55g/m
2Fanglun l414 paper substrate body paper;
Wherein, the addition of copolymer of maleic anhydride and acrylic acid be the Fanglun l414 staple fiber the bone dry fiber quality 0.6%; The concrete steps that are shaped of manufacturing paper with pulp are: with the net part forming of pulp suspension at oblique net paper machine, online concentration is 0.2%, then squeezes 3min under the pressure of 3MPa, is 80 ℃ of dry 5min in temperature; Hot pressing pressure is controlled at 12MPa, and hot pressing temperature is at 140 ℃, hot pressing number of times 2 times;
5) under the environment of room temperature, normal pressure, Fanglun l414 paper substrate body paper is flooded in mass concentration is 10% polyimide resin glue, and pickup is 10%, then drying at room temperature to remove volatile solvent, obtains the Fanglun l414 paper base material.
Embodiment 2:
1) the Fanglun l414 staple fiber being immersed in concentration is 1.2 * 10
-3Agitator treating 30min in the neopelex solution of mol/L to remove the impurity on Fanglun l414 staple fiber surface, then cleans the sodium dodecyl benzenylsulfonate solution in the Fanglun l414 staple fiber; The recycling trough-style pulp beater is discongested, and discongests concentration and is controlled at 0.8%, namely gets Fanglun l414 staple fiber slurry; Wherein, the compound method of sodium dodecyl benzenylsulfonate solution is: in the hot water of 60 ℃, being mixed with concentration is 1.2 * 10 with the sodium dodecyl benzenylsulfonate powder dissolution
-3The sodium dodecyl benzenylsulfonate solution of mol/L;
2) polyester fiber being immersed in temperature is that 45 ℃, mass concentration are to process 20min in 12% hot ethanol, to wash away surperficial oil stain, then utilizes trough-style pulp beater to discongest, and discongests concentration and is controlled at 1.2%, namely gets the polyester fiber slurry;
3) with the Fanglun l414 pulp with the trough-style pulp beater processing of pulling an oar, beating degree is controlled at 45 ° of SR, then discongests, and discongests concentration and is controlled at 1.0%, namely gets Fanglun l414 pulp fibers slurry;
4) press mass fraction, after being mixed, the Fanglun l414 pulp fibers slurry of the Fanglun l414 staple fiber slurries of 35 parts, the polyester fiber slurry of 15 parts and 50 parts discongests, discongest concentration and be controlled at 1.2%, then adding copolymer of maleic anhydride and acrylic acid to mix slurry disperses, adding water adjustment pulp quality concentration is 0.10% again, obtains pulp suspension; With the pulp suspension shaping of manufacturing paper with pulp, then carry out hot pressing on hot press, namely get and quantitatively be 55g/m
2Fanglun l414 paper substrate body paper;
Wherein, the addition of copolymer of maleic anhydride and acrylic acid be the Fanglun l414 staple fiber the bone dry fiber quality 0.8%; The concrete steps that are shaped of manufacturing paper with pulp are: with the net part forming of pulp suspension at oblique net paper machine, online concentration is 0.4%, then squeezes 4min under the pressure of 4MPa, is 100 ℃ of dry 8min in temperature; Hot pressing pressure is controlled at 14MPa, and hot pressing temperature is at 200 ℃, hot pressing number of times 3 times,
5) under the environment under room temperature, normal pressure, Fanglun l414 paper substrate body paper is flooded in mass concentration is 12% polyimide resin glue, and pickup is 15%, then drying at room temperature to remove volatile solvent, obtains the Fanglun l414 paper base material.
Embodiment 3:
1) the Fanglun l414 staple fiber being immersed in concentration is 1.2 * 10
-3Agitator treating 30min in the sodium dodecyl benzenylsulfonate solution of mol/L to remove the impurity on Fanglun l414 staple fiber surface, then cleans the sodium dodecyl benzenylsulfonate solution in the Fanglun l414 staple fiber; The recycling trough-style pulp beater is discongested, and discongests concentration and is controlled at 1.2%, namely gets Fanglun l414 staple fiber slurry; Wherein, the compound method of sodium dodecyl benzenylsulfonate solution is: in the hot water of 60 ℃, being mixed with concentration is 1.2 * 10 with the sodium dodecyl benzenylsulfonate powder dissolution
-3The sodium dodecyl benzenylsulfonate solution of mol/L;
2) polyester fiber being immersed in temperature is that 60 ℃, mass concentration are to process 20min in 12% hot ethanol, to wash away surperficial oil stain, then utilizes trough-style pulp beater to discongest, and discongests concentration and is controlled at 1.8%, namely gets the polyester fiber slurry;
3) with the Fanglun l414 pulp with the trough-style pulp beater processing of pulling an oar, beating degree is controlled at 55 ° of SR, then discongests, and discongests concentration and is controlled at 1.5%, namely gets Fanglun l414 pulp fibers slurry;
4) press mass fraction, after being mixed, the Fanglun l414 pulp fibers slurry of the Fanglun l414 staple fiber slurries of 40 parts, the polyester fiber slurry of 20 parts and 40 parts discongests, discongest concentration and be controlled at 1.6%, then adding copolymer of maleic anhydride and acrylic acid to mix slurry disperses, adding water adjustment pulp quality concentration is 0.12% again, obtains pulp suspension; With the pulp suspension shaping of manufacturing paper with pulp, then carry out hot pressing on hot press, namely get and quantitatively be 55g/m
2Fanglun l414 paper substrate body paper;
Wherein, the addition of copolymer of maleic anhydride and acrylic acid be the Fanglun l414 staple fiber the bone dry fiber quality 1.0%; The concrete steps that are shaped of manufacturing paper with pulp are: with the net part forming of pulp suspension at oblique net paper machine, online concentration is 0.6%, then squeezes 5min under the pressure of 5MPa, is 120 ℃ of dry 10min in temperature; Hot pressing pressure is controlled at 16MPa, and hot pressing temperature is at 240 ℃, hot pressing number of times 4 times;
5) under the environment of room temperature, normal pressure, Fanglun l414 paper substrate body paper is flooded in mass concentration is 14% polyimide resin glue, and pickup is 20%, then drying at room temperature to remove volatile solvent, obtains the Fanglun l414 paper base material.
Embodiment 4:
1) the Fanglun l414 staple fiber being immersed in concentration is 1.2 * 10
-3Agitator treating 30min in the neopelex solution of mol/L to remove the impurity on Fanglun l414 staple fiber surface, then cleans the sodium dodecyl benzenylsulfonate solution in the Fanglun l414 staple fiber; The recycling trough-style pulp beater is discongested, and discongests concentration and is controlled at 2.0%, namely gets Fanglun l414 staple fiber slurry; Wherein, the compound method of sodium dodecyl benzenylsulfonate solution is: in the hot water of 60 ℃, being mixed with concentration is 1.2 * 10 with the sodium dodecyl benzenylsulfonate powder dissolution
-3The sodium dodecyl benzenylsulfonate solution of mol/L;
2) polyester fiber being immersed in temperature is that 50 ℃, mass concentration are to process 20min in 12% hot ethanol, to wash away surperficial oil stain, then utilizes trough-style pulp beater to discongest, and discongests concentration and is controlled at 0.5%, namely gets the polyester fiber slurry;
3) with the Fanglun l414 pulp with the trough-style pulp beater processing of pulling an oar, beating degree is controlled at 30 ° of SR, then discongests, and discongests concentration and is controlled at 2.0%, namely gets Fanglun l414 pulp fibers slurry;
4) press mass fraction, after being mixed, the Fanglun l414 pulp fibers slurry of the Fanglun l414 staple fiber slurries of 40 parts, the polyester fiber slurry of 5 parts and 55 parts discongests, discongest concentration and be controlled at 0.6%, then adding copolymer of maleic anhydride and acrylic acid to mix slurry disperses, adding water adjustment pulp quality concentration is 0.02% again, obtains pulp suspension; With the pulp suspension shaping of manufacturing paper with pulp, then carry out hot pressing on hot press, namely get and quantitatively be 40g/m
2Fanglun l414 paper substrate body paper;
Wherein, the addition of copolymer of maleic anhydride and acrylic acid be the Fanglun l414 staple fiber the bone dry fiber quality 0.4%; The concrete steps that are shaped of manufacturing paper with pulp are: with the net part forming of pulp suspension at oblique net paper machine, online concentration is 0.8%, then squeezes 3min under the pressure of 2MPa, is 90 ℃ of dry 7min in temperature; Hot pressing pressure is controlled at 10MPa, and hot pressing temperature is at 240 ℃, hot pressing number of times 1 time,
5) under the environment under room temperature, normal pressure, Fanglun l414 paper substrate body paper is flooded in mass concentration is 15% polyimide resin glue, and pickup is 17%, then drying at room temperature to remove volatile solvent, obtains the Fanglun l414 paper base material.
Embodiment 5:
1) the Fanglun l414 staple fiber being immersed in concentration is 1.2 * 10
-3Agitator treating 30min in the sodium dodecyl benzenylsulfonate solution of mol/L to remove the impurity on Fanglun l414 staple fiber surface, then cleans the sodium dodecyl benzenylsulfonate solution in the Fanglun l414 staple fiber; The recycling trough-style pulp beater is discongested, and discongests concentration and is controlled at 0.4%, namely gets Fanglun l414 staple fiber slurry; Wherein, the compound method of sodium dodecyl benzenylsulfonate solution is: in the hot water of 60 ℃, being mixed with concentration is 1.2 * 10 with the sodium dodecyl benzenylsulfonate powder dissolution
-3The sodium dodecyl benzenylsulfonate solution of mol/L;
2) be that 30 ℃, mass concentration are to process 20min in 12% hot ethanol with resinous fiber-impregnated in temperature, to wash away surperficial oil stain, then utilize trough-style pulp beater to discongest, discongest concentration and be controlled at 2.0%, namely get the resin fibre slurry;
3) with the Fanglun l414 pulp with the trough-style pulp beater processing of pulling an oar, beating degree is controlled at 60 ° of SR, then discongests, and discongests concentration and is controlled at 0.5%, namely gets Fanglun l414 pulp fibers slurry;
4) press mass fraction, after being mixed, the Fanglun l414 pulp fibers slurry of the Fanglun l414 staple fiber slurries of 30 parts, the resin fibre slurry of 10 parts and 60 parts discongests, discongest concentration and be controlled at 1.8%, then adding copolymer of maleic anhydride and acrylic acid to mix slurry disperses, adding water adjustment pulp quality concentration is 0.10% again, obtains pulp suspension; With the pulp suspension shaping of manufacturing paper with pulp, then carry out hot pressing on hot press, namely get and quantitatively be 120g/m
2Fanglun l414 paper substrate body paper;
Wherein, the addition of copolymer of maleic anhydride and acrylic acid be the Fanglun l414 staple fiber the bone dry fiber quality 0.6%; The concrete steps that are shaped of manufacturing paper with pulp are: with the net part forming of pulp suspension at oblique net paper machine, online concentration is 0.2%, then squeezes 3min under the pressure of 3MPa, is 80 ℃ of dry 5min in temperature; Hot pressing pressure is controlled at 16MPa, and hot pressing temperature is at 100 ℃, hot pressing number of times 4 times;
5) under the environment of room temperature, normal pressure, Fanglun l414 paper substrate body paper is flooded in mass concentration is 10% polyimide resin glue, and pickup is 10%, then drying at room temperature to remove volatile solvent, obtains the Fanglun l414 paper base material.
Embodiment 6:
1) the Fanglun l414 staple fiber being immersed in concentration is 1.2 * 10
-3Agitator treating 30min in the sodium dodecyl benzenylsulfonate solution of mol/L to remove the impurity on Fanglun l414 staple fiber surface, then cleans the sodium dodecyl benzenylsulfonate solution in the Fanglun l414 staple fiber; The recycling trough-style pulp beater is discongested, and discongests concentration and is controlled at 0.4%, namely gets Fanglun l414 staple fiber slurry; Wherein, the compound method of sodium dodecyl benzenylsulfonate solution is: in the hot water of 60 ℃, being mixed with concentration is 1.2 * 10 with the sodium dodecyl benzenylsulfonate powder dissolution
-3The sodium dodecyl benzenylsulfonate solution of mol/L;
2) be that 30 ℃, mass concentration are to process 20min in 12% hot ethanol with resinous fiber-impregnated in temperature, to wash away surperficial oil stain, then utilize trough-style pulp beater to discongest, discongest concentration and be controlled at 2.0%, namely get the resin fibre slurry;
3) with the Fanglun l414 pulp with the trough-style pulp beater processing of pulling an oar, beating degree is controlled at 60 ° of SR, then discongests, and discongests concentration and is controlled at 0.5%, namely gets Fanglun l414 pulp fibers slurry;
4) press mass fraction, after being mixed, the Fanglun l414 pulp fibers slurry of the Fanglun l414 staple fiber slurries of 30 parts, the resin fibre slurry of 10 parts and 60 parts discongests, discongest concentration and be controlled at 1.8%, then adding copolymer of maleic anhydride and acrylic acid to mix slurry disperses, adding water adjustment pulp quality concentration is 0.10% again, obtains pulp suspension; With the pulp suspension shaping of manufacturing paper with pulp, then carry out hot pressing on hot press, namely get and quantitatively be 78g/m
2Fanglun l414 paper substrate body paper;
Wherein, the addition of copolymer of maleic anhydride and acrylic acid be the Fanglun l414 staple fiber the bone dry fiber quality 0.6%; The concrete steps that are shaped of manufacturing paper with pulp are: with the net part forming of pulp suspension at oblique net paper machine, online concentration is 0.2%, then squeezes 3min under the pressure of 3MPa, is 80 ℃ of dry 5min in temperature; Hot pressing pressure is controlled at 16MPa, and hot pressing temperature is at 100 ℃, hot pressing number of times 4 times;
5) under the environment of room temperature, normal pressure, Fanglun l414 paper substrate body paper is flooded in mass concentration is 10% polyimide resin glue, and pickup is 10%, then drying at room temperature to remove volatile solvent, obtains the Fanglun l414 paper base material.
Fanglun l414 paper base material to production of the present invention adopts the method for systematic sampling to carry out sampling Detection, all satisfies instructions for use.Its indices is: 1, record quantitatively according to GB/T451.2-2002: 55g/m
2, 2, record tensile index according to GB/T12914-2008: 77.13Nm/g, 3, record tear index according to GB/T455-2002: 26.51mNm
2/ g, 4, record compressive resistance according to GB/T1695-2005: 16.33Kv/mm, 5, record percentage elongation according to GB/T12914: 1.75%, 6, recording 300 ℃ of lower paper thermal weight losses according to GB/T6425-2008 is 9.01%.
Claims (10)
1. the production method of a Fanglun l414 paper base material, is characterized in that, comprises the following steps:
1) the Fanglun l414 staple fiber is immersed in agitator treating in sodium dodecyl benzenylsulfonate solution, until remove the impurity on Fanglun l414 staple fiber surface, then clean the sodium dodecyl benzenylsulfonate solution in the Fanglun l414 staple fiber, then discongest, namely get Fanglun l414 staple fiber slurry;
2) with the modified thermoplastic fiber impregnation in hot ethanol to wash away surperficial oil stain, then discongest, namely get the modified thermoplastic fibre stuff;
3) then the Fanglun l414 pulp is pulled an oar processing discongests, and namely gets Fanglun l414 pulp fibers slurry;
4) after being mixed, Fanglun l414 staple fiber slurry, modified thermoplastic fibre stuff and Fanglun l414 pulp fibers slurry discongest, then adding copolymer of maleic anhydride and acrylic acid to mix slurry disperses, adding water adjustment pulp quality concentration is 0.02～0.12% again, obtains pulp suspension; Pulp suspension is through shaping, the hot pressing of manufacturing paper with pulp, and getting is quantitatively 40～120g/m
2Fanglun l414 paper substrate body paper; Wherein, the addition of copolymer of maleic anhydride and acrylic acid be the Fanglun l414 staple fiber the bone dry fiber quality 0.4～1.0%;
5) under environment under room temperature, normal pressure, Fanglun l414 paper substrate body paper is flooded in the polyimide resin glue, and pickup is 10～20%, then dry to remove after dipping volatile solvent in Fanglun l414 paper substrate body paper, namely get the Fanglun l414 paper base material.
2. the production method of Fanglun l414 paper base material according to claim 1, it is characterized in that: in described step 1), the concentration of sodium dodecyl benzenylsulfonate solution is 1.2 * 10
-3Mol/L discongests and adopts trough-style pulp beater to realize, and discongests concentration and be controlled at 0.4～2%.
3. the production method of Fanglun l414 paper base material according to claim 1, it is characterized in that: the temperature of the hot ethanol described step 2) is 30～60 ℃, the mass concentration of hot ethanol is 12%, discongests and adopts trough-style pulp beater to realize, and discongest concentration and be controlled at 0.5～2%.
4. the production method of Fanglun l414 paper base material according to claim 1 is characterized in that: described step 2), the modified thermoplastic fiber is polyester fiber or resin fibre.
5. the production method of Fanglun l414 paper base material according to claim 1 is characterized in that: described step 3) adopts the trough-style pulp beater processing of pulling an oar, and beating degree is controlled at 30～60 ° of SR, discongests concentration and is controlled at 0.5～2%.
6. the production method of Fanglun l414 paper base material according to claim 1, it is characterized in that: in described step 4), the mass ratio of Fanglun l414 staple fiber slurry, modified thermoplastic fibre stuff and Fanglun l414 pulp fibers slurry is for (30～40): (5～20): (40～60), and discongest concentration and be controlled at 0.6～1.8%.
7. the production method of Fanglun l414 paper base material according to claim 1, it is characterized in that, the described step 4) concrete steps that are shaped of manufacturing paper with pulp are: with the net part forming of pulp suspension at oblique net paper machine, then press dewatering 3～5min under the squeeze force of 2～5MPa, then under 80～120 ℃ dry 5～10min.
8. the production method of Fanglun l414 paper base material according to claim 7, it is characterized in that: in described step 4), pulp suspension is 0.2～0.8% in the online concentration of oblique net paper machine wet end.
9. the production method of Fanglun l414 paper base material according to claim 1, it is characterized in that: in described step 4), hot pressing pressure is controlled at 10～16MPa, and hot pressing temperature is 100～240 ℃, hot pressing number of times 1～4 time.
10. the production method of Fanglun l414 paper base material according to claim 1, it is characterized in that: in described step 5), the mass concentration of polyimide resin glue is controlled at 10～15%.
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| CN104818647A (en) * | 2015-04-01 | 2015-08-05 | 圣欧芳纶（淮安）有限公司 | Method for producing aramid fiber insulation paper from m-aramid fibers and m-aramid pulp |
| CN105924962A (en) * | 2016-06-08 | 2016-09-07 | 铜陵方正塑业科技有限公司 | High-toughness aviation garbage bag and preparation method thereof |
| CN106283833A (en) * | 2016-10-21 | 2017-01-04 | 江南大学 | A kind of preparation method of superhigh molecular weight polyethylene fibers paper |
| CN107910477A (en) * | 2017-11-14 | 2018-04-13 | 宁波日新恒力科技有限公司 | A kind of preparation method of cellulose and polyarylate fiber base battery membrane |
| CN110331617A (en) * | 2019-08-09 | 2019-10-15 | 浙江华邦特种纸业有限公司 | Aramid Paper copy paper moulding process and equipment |
| CN110396855A (en) * | 2019-08-09 | 2019-11-01 | 浙江华邦特种纸业有限公司 | Aramid Paper hot press forming technology and equipment |
| CN111304955A (en) * | 2020-02-20 | 2020-06-19 | 陕西科技大学 | Method for in-situ reinforcement of paper base material performance by aramid nano-fiber |
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| CN104818647A (en) * | 2015-04-01 | 2015-08-05 | 圣欧芳纶（淮安）有限公司 | Method for producing aramid fiber insulation paper from m-aramid fibers and m-aramid pulp |
| CN105924962A (en) * | 2016-06-08 | 2016-09-07 | 铜陵方正塑业科技有限公司 | High-toughness aviation garbage bag and preparation method thereof |
| CN106283833A (en) * | 2016-10-21 | 2017-01-04 | 江南大学 | A kind of preparation method of superhigh molecular weight polyethylene fibers paper |
| CN106283833B (en) * | 2016-10-21 | 2018-03-02 | 江南大学 | A kind of preparation method of superhigh molecular weight polyethylene fibers paper |
| CN107910477A (en) * | 2017-11-14 | 2018-04-13 | 宁波日新恒力科技有限公司 | A kind of preparation method of cellulose and polyarylate fiber base battery membrane |
| CN107910477B (en) * | 2017-11-14 | 2021-02-09 | 宁波日新恒力科技有限公司 | Preparation method of cellulose and polyarylate fiber-based battery diaphragm |
| CN110331617A (en) * | 2019-08-09 | 2019-10-15 | 浙江华邦特种纸业有限公司 | Aramid Paper copy paper moulding process and equipment |
| CN110396855A (en) * | 2019-08-09 | 2019-11-01 | 浙江华邦特种纸业有限公司 | Aramid Paper hot press forming technology and equipment |
| CN110331617B (en) * | 2019-08-09 | 2021-10-01 | 浙江华邦特种纸业有限公司 | Paper making and forming process and equipment for aramid paper-based composite material |
| CN110396855B (en) * | 2019-08-09 | 2021-10-01 | 浙江华邦特种纸业有限公司 | Hot-press forming process and equipment for aramid paper-based composite material |
| CN111304955A (en) * | 2020-02-20 | 2020-06-19 | 陕西科技大学 | Method for in-situ reinforcement of paper base material performance by aramid nano-fiber |
| CN111304955B (en) * | 2020-02-20 | 2022-02-25 | 陕西科技大学 | Method for in-situ reinforcement of paper base material performance by aramid nano-fiber |
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