CN103981770A - Filter paper for gasoline filter and preparation method thereof - Google Patents
Filter paper for gasoline filter and preparation method thereof Download PDFInfo
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- CN103981770A CN103981770A CN201410138688.XA CN201410138688A CN103981770A CN 103981770 A CN103981770 A CN 103981770A CN 201410138688 A CN201410138688 A CN 201410138688A CN 103981770 A CN103981770 A CN 103981770A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 230000004048 modification Effects 0.000 claims abstract description 26
- 238000012986 modification Methods 0.000 claims abstract description 26
- 239000010902 straw Substances 0.000 claims abstract description 26
- 239000000835 fiber Substances 0.000 claims abstract description 21
- 239000000843 powder Substances 0.000 claims abstract description 18
- 239000007822 coupling agent Substances 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 13
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 9
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 9
- 240000000491 Corchorus aestuans Species 0.000 claims abstract description 9
- 235000011777 Corchorus aestuans Nutrition 0.000 claims abstract description 9
- 235000010862 Corchorus capsularis Nutrition 0.000 claims abstract description 9
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 9
- 239000011425 bamboo Substances 0.000 claims abstract description 9
- 239000003610 charcoal Substances 0.000 claims abstract description 9
- 239000005011 phenolic resin Substances 0.000 claims abstract description 9
- 229920001568 phenolic resin Polymers 0.000 claims abstract description 9
- 229920000728 polyester Polymers 0.000 claims abstract description 9
- SRAWNDFHGTVUNZ-UHFFFAOYSA-M sodium;3,6-dibutylnaphthalene-1-sulfonate Chemical compound [Na+].[O-]S(=O)(=O)C1=CC(CCCC)=CC2=CC(CCCC)=CC=C21 SRAWNDFHGTVUNZ-UHFFFAOYSA-M 0.000 claims abstract description 9
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 6
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims abstract description 6
- 235000019270 ammonium chloride Nutrition 0.000 claims abstract description 6
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000012188 paraffin wax Substances 0.000 claims abstract description 6
- 229920000193 polymethacrylate Polymers 0.000 claims abstract description 6
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 6
- 239000011734 sodium Substances 0.000 claims abstract description 6
- 238000006243 chemical reaction Methods 0.000 claims description 12
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 9
- 241001330002 Bambuseae Species 0.000 claims description 8
- 239000002002 slurry Substances 0.000 claims description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 125000003368 amide group Chemical group 0.000 claims description 6
- 230000015556 catabolic process Effects 0.000 claims description 6
- 238000006731 degradation reaction Methods 0.000 claims description 6
- 229920000587 hyperbranched polymer Polymers 0.000 claims description 6
- 239000011268 mixed slurry Substances 0.000 claims description 6
- 239000000376 reactant Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- MOTZDAYCYVMXPC-UHFFFAOYSA-N dodecyl hydrogen sulfate Chemical compound CCCCCCCCCCCCOS(O)(=O)=O MOTZDAYCYVMXPC-UHFFFAOYSA-N 0.000 claims description 5
- 229940043264 dodecyl sulfate Drugs 0.000 claims description 5
- JGFZNNIVVJXRND-UHFFFAOYSA-N N,N-diisopropylethylamine Substances CCN(C(C)C)C(C)C JGFZNNIVVJXRND-UHFFFAOYSA-N 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- DJEQZVQFEPKLOY-UHFFFAOYSA-N N,N-dimethylbutylamine Chemical compound CCCCN(C)C DJEQZVQFEPKLOY-UHFFFAOYSA-N 0.000 claims description 3
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 3
- 239000003054 catalyst Substances 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 3
- DDXLVDQZPFLQMZ-UHFFFAOYSA-M dodecyl(trimethyl)azanium;chloride Chemical compound [Cl-].CCCCCCCCCCCC[N+](C)(C)C DDXLVDQZPFLQMZ-UHFFFAOYSA-M 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 238000004108 freeze drying Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000002386 leaching Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 229920002401 polyacrylamide Polymers 0.000 claims description 3
- 239000012286 potassium permanganate Substances 0.000 claims description 3
- 239000002994 raw material Substances 0.000 abstract description 3
- 239000003463 adsorbent Substances 0.000 abstract description 2
- 239000005416 organic matter Substances 0.000 abstract description 2
- 238000001179 sorption measurement Methods 0.000 abstract description 2
- 238000001228 spectrum Methods 0.000 abstract description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 abstract 1
- 244000082204 Phyllostachys viridis Species 0.000 abstract 1
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 abstract 1
- 229910021538 borax Inorganic materials 0.000 abstract 1
- 235000019333 sodium laurylsulphate Nutrition 0.000 abstract 1
- 235000010339 sodium tetraborate Nutrition 0.000 abstract 1
- BSVBQGMMJUBVOD-UHFFFAOYSA-N trisodium borate Chemical compound [Na+].[Na+].[Na+].[O-]B([O-])[O-] BSVBQGMMJUBVOD-UHFFFAOYSA-N 0.000 abstract 1
- 238000001914 filtration Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 229920002522 Wood fibre Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- ZIUHHBKFKCYYJD-UHFFFAOYSA-N n,n'-methylenebisacrylamide Chemical compound C=CC(=O)NCNC(=O)C=C ZIUHHBKFKCYYJD-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Abstract
The invention discloses a filter paper for a gasoline filter and a preparation method thereof. The filter paper comprises the following raw materials by weight: 60 to 70 parts of jute pulp, 35 to 45 parts of a bamboo pulp fiber, 20 to 25 parts of a polyester fiber, 10 to 15 parts of a phenolic resin, 12 to 15 parts of charcoal powder, 13 to 15 parts of modified crop straw, 10 to 12 parts of talcum powder, 4 to 6 parts of a modification coupling agent, 1 to 3 parts of sodium polymethacrylate, 0.2 to 0.4 part of an anti-oxidant 1010, 2 to 4 parts of nekal BX-78, 1 to 3 parts of ammonium chloride, 0.5 to 1.5 parts of sodium borate, 0.8 to 1.5 parts of sodium laurylsulfate and 2 to 4 parts of chlorinated paraffin. The filter paper provided by the invention is environment friendly and scientific and has a reasonable raw material formula and good component compatibility; a prepared modified crop straw adsorbent has stable performance and wider-spectrum organic matter adsorption capability; the employed modification coupling agent enables pulp to be tightly bonded together, so the filter paper has improved material performance, reduced viscosity, better mechanical properties and good tensile strength, elongation at break, impact resistance, etc.
Description
Technical field
The present invention relates to a kind of gasoline filter filter paper and preparation method thereof, belong to automobile filter field.
Background technology
Cleaner is the important spare part of engine, it act as the particulate such as dust and mechanical admixture in air that filtering enters engine, diesel oil, machine oil, to reduce the wearing and tearing of Cylinder Liner Piston Ring in Engine, crankshaft link rod motion pair and high-pressure oil pump plunger matching parts, optimize the combustion process of engine, reduce the discharge of the organic pollutions such as carbon monoxide; Along with filtering improving constantly of requiring, any by singly plant fibrous filter paper be all more and more difficult to meet use on requirement, so the filter paper being formed by multiple fiber combinations arises at the historic moment, in filter paper production, conventional fiber has wood fibre, chemical fibre, glass fibre etc.
Summary of the invention
The object of the present invention is to provide a kind of gasoline filter filter paper and preparation method thereof,
The present invention adopts following technical scheme:
Gasoline filter filter paper, the weight portion of its constitutive material is: jute pulp 60-70, bamboo pulp fiber 35-45, polyester fiber 20-25, phenolic resins 10-15, charcoal powder 12-15, modification agricultural crop straw 13-15, talcum powder 10-12, modification coupling agent 4-6, sodium polymethacrylate 1-3, antioxidant 1010 0.2-0.4, Nekal BX-78 2-4, ammonium chloride 1-3, Boratex 0.5-1.5, sldium lauryl sulfate 0.8-1.5 and chlorinated paraffin wax 2-4.
Gasoline filter filter paper, the weight portion of its constitutive material is: jute pulp 65, bamboo pulp fiber 40, polyester fiber 22, phenolic resins 12, charcoal powder 14, modification agricultural crop straw 14, talcum powder 11, modification coupling agent 5, sodium polymethacrylate 2, antioxidant 1010 0.3, Nekal BX-78 3, ammonium chloride 2, Boratex 1, sldium lauryl sulfate 1.2 and chlorinated paraffin wax 3.
The preparation method of filter paper for gasoline filter, comprises the following steps:
(1) preparation of modification coupling agent: MTMS is added in absolute ethyl alcohol, described MTMS and absolute ethyl alcohol are according to quality and volume ratio 1:3-5, then add the polyacrylamide of the 1.0-2.0% of MTMS quality, the N of 1.5-2.0%, the N of N '-methylene-bisacrylamide and 0.2-0.3%, N-diisopropylethylamine; The temperature of reaction is 40-60 DEG C, and the time of described reaction is 10-12h, obtains reactant liquor; After reaction, reactant liquor is first disperseed to 2-3 hour under ultrasonic electric power 350W condition, and then disperse 3-5 hour under ultrasonic electric power 250W condition, can obtain;
(2) preparation of modification agricultural crop straw:
(a) take agricultural crop straw by constitutive material formula, grind, adding the mass fraction that 10-15 doubly measures is 5～10%NaOH solution, under the temperature conditions of 60～80 DEG C, activates 3～5h, crosses leaching filter residue;
(b) pure water that adds 5-10 doubly to measure in the filter residue of step (a), and then add 0.6-0.7% Dodecyl trimethyl ammonium chloride, 1.2-1.5% Silane coupling agent KH550 and the 3-5% potassium permanganate of agricultural crop straw powder quality; Stir and react 2-3h, filter, dry;
(c) it is in the Hyperbranched Polymer with Terminal Amido solution of 40-50g/L that the agricultural crop straw powder of step (b) being dried adds concentration; Described agricultural crop straw powder and the quality of Hyperbranched Polymer with Terminal Amido solution and volume ratio are 1:40-50, then add 0.1-0.2% catalyst n, N-dimethyl butylamine, is uniformly mixed reaction 10-12h, filter and use washed with de-ionized water 3-5 time, after freeze drying, obtain;
(3) mix first by weight bamboo pulp fiber, polyester fiber, phenolic resins and charcoal powder, then put into pulper size degradation, obtain the slurry that solid content is 4-6%, then add Nekal BX-78, stir and continue size degradation and obtain mixed slurry;
(4) mixed slurry of the modification agricultural crop straw of the modification coupling agent of step (1), step (2) and step (3) is added in jute pulp, heating stirs, and controls temperature 50-70 DEG C;
(5) in the compound of step (4), add other residue constitutive materials, after fluffer is discongested, then defibrination, after defibrination, gained slurry is sized mixing through adding water, to after solid content 3-5% according to conventional paper technology copy paper, moulding squeezing, be drying to obtain.
Beneficial effect of the present invention:
Filter paper environmental protection science of the present invention, composition of raw materials is reasonable, each group partition inter-capacitive is good, the modification agricultural crop straw performance of the adsorbent of preparation is stable, organic matter is had to the adsorption capacity of wide spectrum, and the modification coupling agent adopting can make to form and combine closely between slurry, filter paper material performance is improved, make reduced viscosity, every mechanical property is better, has and draws high preferably intensity, elongation at break, shock strength texts.
Detailed description of the invention
Embodiment 1: gasoline filter filter paper, the weight portion (jin) of its constitutive material is: jute pulp 65, bamboo pulp fiber 40, polyester fiber 22, phenolic resins 12, charcoal powder 14, modification agricultural crop straw 14, talcum powder 11, modification coupling agent 5, sodium polymethacrylate 2, antioxidant 1010 0.3, Nekal BX-78 3, ammonium chloride 2, Boratex 1, sldium lauryl sulfate 1.2 and chlorinated paraffin wax 3.
The preparation method of filter paper for gasoline filter, comprises the following steps:
(1) preparation of modification coupling agent: MTMS is added in absolute ethyl alcohol, described MTMS and absolute ethyl alcohol are according to quality and volume ratio 1:4, then add 1.5% polyacrylamide of MTMS quality, 1.8% N, N '-methylene-bisacrylamide and 0.25% N, N-diisopropylethylamine; The temperature of reaction is 50 DEG C, and the time of described reaction is 10-12h, obtains reactant liquor; After reaction, reactant liquor is first disperseed to 2-3 hour under ultrasonic electric power 350W condition, and then disperse 3-5 hour under ultrasonic electric power 250W condition, can obtain;
(2) preparation of modification agricultural crop straw:
(a) take agricultural crop straw by constitutive material formula, grind, the mass fraction that adds 12 times of amounts is 10%NaOH solution, under the temperature conditions of 70 DEG C, activates 4h, crosses leaching filter residue;
(b) pure water that adds 5-10 doubly to measure in the filter residue of step (a), and then add 0.65% Dodecyl trimethyl ammonium chloride, 1.3% Silane coupling agent KH550 and 4% potassium permanganate of agricultural crop straw powder quality; Stir and react 2-3h, filter, dry;
(c) it is in the Hyperbranched Polymer with Terminal Amido solution of 45g/L that the agricultural crop straw powder of step (b) being dried adds concentration; Described agricultural crop straw powder and the quality of Hyperbranched Polymer with Terminal Amido solution and volume ratio are 1:45, then add 0.15% catalyst n, N-dimethyl butylamine, is uniformly mixed reaction 10-12h, filter and use washed with de-ionized water 3-5 time, after freeze drying, obtain;
(3) mix first by weight bamboo pulp fiber, polyester fiber, phenolic resins and charcoal powder, then put into pulper size degradation, obtain solid content and be 5% slurry, then add Nekal BX-78, stir and continue size degradation and obtain mixed slurry;
(4) mixed slurry of the modification agricultural crop straw of the modification coupling agent of step (1), step (2) and step (3) is added in jute pulp, heating stirs, and controls temperature 60 C;
(5) in the compound of step (4), add other residue constitutive materials, after fluffer is discongested, then defibrination, after defibrination, gained slurry is sized mixing through adding water, to after solid content 4% according to conventional paper technology copy paper, moulding squeezing, be drying to obtain.
The performance of filter paper that above-described embodiment makes: grammes per square metre: 125g/cm
2; Bursting strength: 310Kpa; Air permeability: 488ml/10cm
2min; Its maximum diameter of hole 48-54 μ m, average pore size 34-38 μ m, becomes paper air permeability at 80-85L/m
2.S between.
Claims (3)
1. a gasoline filter filter paper, is characterized in that the weight portion of its constitutive material is: jute pulp 60-70, bamboo pulp fiber 35-45, polyester fiber 20-25, phenolic resins 10-15, charcoal powder 12-15, modification agricultural crop straw 13-15, talcum powder 10-12, modification coupling agent 4-6, sodium polymethacrylate 1-3, antioxidant 1010 0.2-0.4, Nekal BX-78 2-4, ammonium chloride 1-3, Boratex 0.5-1.5, sldium lauryl sulfate 0.8-1.5 and chlorinated paraffin wax 2-4.
2. gasoline filter filter paper according to claim 1, is characterized in that the weight portion of its constitutive material is: jute pulp 65, bamboo pulp fiber 40, polyester fiber 22, phenolic resins 12, charcoal powder 14, modification agricultural crop straw 14, talcum powder 11, modification coupling agent 5, sodium polymethacrylate 2, antioxidant 1010 0.3, Nekal BX-78 3, ammonium chloride 2, Boratex 1, sldium lauryl sulfate 1.2 and chlorinated paraffin wax 3.
3. a preparation method for filter paper for gasoline filter as claimed in claim 1, is characterized in that comprising the following steps:
(1) preparation of modification coupling agent: MTMS is added in absolute ethyl alcohol, described MTMS and absolute ethyl alcohol are according to quality and volume ratio 1:3-5, then add the polyacrylamide of the 1.0-2.0% of MTMS quality, the N of 1.5-2.0%, the N of N '-methylene-bisacrylamide and 0.2-0.3%, N-diisopropylethylamine; The temperature of reaction is 40-60 DEG C, and the time of described reaction is 10-12h, obtains reactant liquor; After reaction, reactant liquor is first disperseed to 2-3 hour under ultrasonic electric power 350W condition, and then disperse 3-5 hour under ultrasonic electric power 250W condition, can obtain;
(2) preparation of modification agricultural crop straw:
(a) take agricultural crop straw by constitutive material formula, grind, adding the mass fraction that 10-15 doubly measures is 5～10%NaOH solution, under the temperature conditions of 60～80 DEG C, activates 3～5h, crosses leaching filter residue;
(b) pure water that adds 5-10 doubly to measure in the filter residue of step (a), and then add 0.6-0.7% Dodecyl trimethyl ammonium chloride, 1.2-1.5% Silane coupling agent KH550 and the 3-5% potassium permanganate of agricultural crop straw powder quality; Stir and react 2-3h, filter, dry;
(c) it is in the Hyperbranched Polymer with Terminal Amido solution of 40-50g/L that the agricultural crop straw powder of step (b) being dried adds concentration; Described agricultural crop straw powder and the quality of Hyperbranched Polymer with Terminal Amido solution and volume ratio are 1:40-50, then add 0.1-0.2% catalyst n, N-dimethyl butylamine, is uniformly mixed reaction 10-12h, filter and use washed with de-ionized water 3-5 time, after freeze drying, obtain;
(3) mix first by weight bamboo pulp fiber, polyester fiber, phenolic resins and charcoal powder, then put into pulper size degradation, obtain the slurry that solid content is 4-6%, then add Nekal BX-78, stir and continue size degradation and obtain mixed slurry;
(4) mixed slurry of the modification agricultural crop straw of the modification coupling agent of step (1), step (2) and step (3) is added in jute pulp, heating stirs, and controls temperature 50-70 DEG C;
(5) in the compound of step (4), add other residue constitutive materials, after fluffer is discongested, then defibrination, after defibrination, gained slurry is sized mixing through adding water, to after solid content 3-5% according to conventional paper technology copy paper, moulding squeezing, be drying to obtain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410138688.XA CN103981770B (en) | 2014-04-09 | 2014-04-09 | A kind of gasoline filter filter paper and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410138688.XA CN103981770B (en) | 2014-04-09 | 2014-04-09 | A kind of gasoline filter filter paper and preparation method thereof |
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| Publication Number | Publication Date |
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| CN103981770A true CN103981770A (en) | 2014-08-13 |
| CN103981770B CN103981770B (en) | 2016-08-17 |
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| CN105568769A (en) * | 2016-02-25 | 2016-05-11 | 杭州特种纸业有限公司 | Diesel filter paper and preparation method thereof |
| CN105735037A (en) * | 2016-02-25 | 2016-07-06 | 杭州特种纸业有限公司 | Thermosetting air filter paper and preparation method thereof |
| CN105780595A (en) * | 2016-04-26 | 2016-07-20 | 杭州特种纸业有限公司 | Nanometer air filter paper and preparation method thereof |
| CN105926344A (en) * | 2016-04-26 | 2016-09-07 | 杭州特种纸业有限公司 | Nanometer quantitative filter paper and production method thereof |
| CN105937193A (en) * | 2016-04-26 | 2016-09-14 | 杭州特种纸业有限公司 | Nano engine and air filter paper and preparation method thereof |
| CN105951524A (en) * | 2016-04-26 | 2016-09-21 | 杭州特种纸业有限公司 | Nano machine oil filter paper and preparation method thereof |
| CN109295797A (en) * | 2018-09-26 | 2019-02-01 | 扬州市祥华新材料科技有限公司 | A kind of preparation method for punching high tenacity paper |
| CN115300985A (en) * | 2022-06-17 | 2022-11-08 | 华电电力科学研究院有限公司 | Efficient deacidification regeneration treatment method for oil used for power equipment |
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| CN105937193A (en) * | 2016-04-26 | 2016-09-14 | 杭州特种纸业有限公司 | Nano engine and air filter paper and preparation method thereof |
| CN105951524A (en) * | 2016-04-26 | 2016-09-21 | 杭州特种纸业有限公司 | Nano machine oil filter paper and preparation method thereof |
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| CN115300985B (en) * | 2022-06-17 | 2023-11-24 | 华电电力科学研究院有限公司 | Efficient acid removal regeneration treatment method for oil for power equipment |
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