CN103938491A - Water and oil resistant oil filter paper added with nano-titanium dioxide and preparation method thereof - Google Patents
Water and oil resistant oil filter paper added with nano-titanium dioxide and preparation method thereof Download PDFInfo
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- CN103938491A CN103938491A CN201410099682.6A CN201410099682A CN103938491A CN 103938491 A CN103938491 A CN 103938491A CN 201410099682 A CN201410099682 A CN 201410099682A CN 103938491 A CN103938491 A CN 103938491A
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- oil
- filter paper
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- oil filter
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 238000002360 preparation method Methods 0.000 title claims description 7
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 title abstract 4
- 239000003921 oil Substances 0.000 claims abstract description 24
- 239000000843 powder Substances 0.000 claims abstract description 21
- KBPLFHHGFOOTCA-UHFFFAOYSA-N 1-Octanol Chemical compound CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 claims abstract description 14
- 244000025254 Cannabis sativa Species 0.000 claims abstract description 7
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 claims abstract description 7
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 claims abstract description 7
- 229910021536 Zeolite Inorganic materials 0.000 claims abstract description 7
- 235000009120 camo Nutrition 0.000 claims abstract description 7
- 239000004359 castor oil Substances 0.000 claims abstract description 7
- 235000019438 castor oil Nutrition 0.000 claims abstract description 7
- 235000005607 chanvre indien Nutrition 0.000 claims abstract description 7
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000003365 glass fiber Substances 0.000 claims abstract description 7
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims abstract description 7
- 239000011487 hemp Substances 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 239000010457 zeolite Substances 0.000 claims abstract description 7
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims abstract description 4
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229920002907 Guar gum Polymers 0.000 claims abstract description 4
- 244000275012 Sesbania cannabina Species 0.000 claims abstract description 4
- 239000001768 carboxy methyl cellulose Substances 0.000 claims abstract description 4
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims abstract description 4
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims abstract description 4
- 239000000665 guar gum Substances 0.000 claims abstract description 4
- 229960002154 guar gum Drugs 0.000 claims abstract description 4
- 235000010417 guar gum Nutrition 0.000 claims abstract description 4
- 239000011347 resin Substances 0.000 claims abstract description 4
- 229920005989 resin Polymers 0.000 claims abstract description 4
- 239000007787 solid Substances 0.000 claims abstract description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 16
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 16
- 239000002002 slurry Substances 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 12
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 9
- 239000002939 oilproofing Substances 0.000 claims description 9
- 238000004078 waterproofing Methods 0.000 claims description 9
- 241000276489 Merlangius merlangus Species 0.000 claims description 7
- 239000012752 auxiliary agent Substances 0.000 claims description 7
- 238000007598 dipping method Methods 0.000 claims description 7
- 239000000839 emulsion Substances 0.000 claims description 7
- 239000005995 Aluminium silicate Substances 0.000 claims description 6
- JHWNWJKBPDFINM-UHFFFAOYSA-N Laurolactam Chemical compound O=C1CCCCCCCCCCCN1 JHWNWJKBPDFINM-UHFFFAOYSA-N 0.000 claims description 6
- 229920000299 Nylon 12 Polymers 0.000 claims description 6
- 241000124033 Salix Species 0.000 claims description 6
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 6
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 6
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 6
- 229910021502 aluminium hydroxide Inorganic materials 0.000 claims description 6
- 235000012211 aluminium silicate Nutrition 0.000 claims description 6
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Inorganic materials [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 claims description 6
- CSSYLTMKCUORDA-UHFFFAOYSA-N barium(2+);oxygen(2-) Chemical compound [O-2].[Ba+2] CSSYLTMKCUORDA-UHFFFAOYSA-N 0.000 claims description 6
- 239000004927 clay Substances 0.000 claims description 6
- 230000018044 dehydration Effects 0.000 claims description 6
- 238000006297 dehydration reaction Methods 0.000 claims description 6
- 239000012467 final product Substances 0.000 claims description 6
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 6
- 239000004816 latex Substances 0.000 claims description 6
- 229920000126 latex Polymers 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 6
- 239000011236 particulate material Substances 0.000 claims description 6
- 229910000077 silane Inorganic materials 0.000 claims description 6
- 229910052726 zirconium Inorganic materials 0.000 claims description 6
- DOOTYTYQINUNNV-UHFFFAOYSA-N Triethyl citrate Chemical compound CCOC(=O)CC(O)(C(=O)OCC)CC(=O)OCC DOOTYTYQINUNNV-UHFFFAOYSA-N 0.000 claims description 3
- 238000010009 beating Methods 0.000 claims description 3
- 230000015556 catabolic process Effects 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 238000006731 degradation reaction Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 235000013312 flour Nutrition 0.000 claims description 3
- 238000005469 granulation Methods 0.000 claims description 3
- 230000003179 granulation Effects 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 239000011812 mixed powder Substances 0.000 claims description 3
- 229920000768 polyamine Polymers 0.000 claims description 3
- 239000001069 triethyl citrate Substances 0.000 claims description 3
- VMYFZRTXGLUXMZ-UHFFFAOYSA-N triethyl citrate Natural products CCOC(=O)C(O)(C(=O)OCC)C(=O)OCC VMYFZRTXGLUXMZ-UHFFFAOYSA-N 0.000 claims description 3
- 235000013769 triethyl citrate Nutrition 0.000 claims description 3
- 238000010792 warming Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 238000001179 sorption measurement Methods 0.000 abstract description 4
- 239000012535 impurity Substances 0.000 abstract description 3
- 229910010293 ceramic material Inorganic materials 0.000 abstract description 2
- 238000002485 combustion reaction Methods 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract 2
- 239000004952 Polyamide Substances 0.000 abstract 1
- 241000219000 Populus Species 0.000 abstract 1
- 239000006087 Silane Coupling Agent Substances 0.000 abstract 1
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 239000010705 motor oil Substances 0.000 abstract 1
- 229920002647 polyamide Polymers 0.000 abstract 1
- 239000002699 waste material Substances 0.000 abstract 1
- 229920001131 Pulp (paper) Polymers 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000010721 machine oil Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000013528 metallic particle Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
Landscapes
- Paper (AREA)
- Filtering Materials (AREA)
Abstract
The invention discloses a water and oil resistant oil filter paper added with nano-titanium dioxide. The oil filter paper is characterized by being prepared from the following raw materials by weight part: 36-41 of poplar bark pulp, 60-63 of waste hemp rope pulp, 2-3 of nano-titanium dioxide, 2-3 of heavy calcium carbonate, 2-4 of zeolite, 1-2 of magnet powder, 1-2 of chopped glass fiber, 0.5-1 of a silane coupling agent WD-10, 0.3-0.5 of sesbania gum, 0.4-0.5 of guar gum, 5-7 of polyamide epichlorohydrin resin, 2-4 of carboxymethyl cellulose, 0.3-0.5 of octanol, 0.2-0.4 of castor oil, and 1-2 of an assistant. According to the invention, the added nano-titanium dioxide and the like can enhance the adsorption effect, the magnet powder can adsorb metal impurities blended into engine oil during engine combustion; by adding the assistant, the oil filter paper is safe and environment-friendly, and has good water resistance and oil resistance; and through organic combination of a ceramic material and a filter paper, the water and oil resistant oil filter paper is solid and durable, and has good filtration adsorption effect.
Description
Technical field
The present invention relates to automobile filter field, particularly a kind of Waterproofing/oilproofing oil filter filter paper that adds nano titanium oxide and preparation method thereof.
Background technology
Oil filter is the one of cleaner, can remove the impurity such as dust, metallic particles, carbon precipitates and coal soot in machine oil, protection engine.Oil filter paper is the crucial building block in oil filter, determining the performance of oil strainer, oil filter paper he generally include with common wood pulp be a kind of papery filter course that main component is made, because normal wood pulp fibres is thin, hold the shortcomings such as ash amount is low, the life-span is short, and oil filter paper made of paper also ubiquity resistance to water and oil resistivity is poor, the characteristics such as not environmental protection of non-refractory, soak easily distortion when fuel oil is long-time, and then affect filter effect.
Summary of the invention
The object of this invention is to provide a kind of Waterproofing/oilproofing oil filter filter paper that adds nano titanium oxide and preparation method thereof.
In order to realize object of the present invention, the present invention passes through following scheme implementation:
Add a Waterproofing/oilproofing oil filter filter paper for nano titanium oxide, made by the raw material of following weight portion: willow latex 36-41, the useless rope made of hemp slurry 60-63, nano titanium oxide 2-3, powdered whiting 2-3, zeolite 2-4, magnet powder 1-2, short glass fiber 1-2, silane coupler WD-10 0.5-1, sesbania gum 0.3-0.5, guar gum 0.4-0.5, polyamine epichlorohydrin resin 5-7, carboxymethyl cellulose 2-4, octanol 0.3-0.5, castor oil 0.2-0.4, auxiliary agent 1-2;
Described auxiliary agent is made up of the raw material of following weight portion: kaolin 7-9, clay 5-8, zirconium English powder 4-6, barium monoxide 2-3, aluminium hydroxide 2-3, nylon 12 14-16, triethyl citrate 2-3, acetic acid 1-2; First preparation method puts into ball mill by kaolin, clay, zirconium English powder, barium monoxide, aluminium hydroxide, wears into 100-140 object powder, mixes; Then nylon 12 is heated to soften, adds all the other residual componentss to stir after 15-25 minute and add mixed-powder, send into double screw extruder granulation, obtain particulate material; Finally particulate material is put into flour mill and pulverize, to obtain final product.
A kind of Waterproofing/oilproofing oil filter filter paper that adds nano titanium oxide of the present invention, made by following concrete steps:
(1) nano titanium oxide, powdered whiting, zeolite, magnet powder, short glass fiber are mixed, grind to form 50-100 object powder, add silane coupler WD-10, with the speed of 850-950 rev/min, stir 25-30 minute, then 110-120 DEG C dry 1.5-2.5 hour stand-by;
(2) willow latex, useless rope made of hemp slurry are put into hydrabrusher size degradation, then through beater, beating consistency is controlled at 5.8-6.5%, makes slurry;
(3) compound of step (1) is added in slurry, add octanol, castor oil, be heated to 65-75 DEG C, stir, add appropriate water size mixing to solid content be 2.5-3.5%, the slurry mixing up, after forming web moulding, aspirates dehydration to the l Water Paper after moulding under the vacuum condition of 0.05-0.08Mpa;
(4) all the other residual componentss are mixed, dilute with water, then heating, temperature is controlled at 60-70 DEG C, boils 50-60 minute, and insulation 25-30 minute, is warming up to 70-75 DEG C, stirs and makes dipping emulsion; (5) make the even dipping emulsion of paper after step (3) dehydration with spreader, then will in paper electric drying oven with forced convection flood, dry 4-5min, finally on polisher, be dried 6-9min, after taking-up and get final product.
The invention has the beneficial effects as follows: the present invention adds nano titanium oxide, powdered whiting etc. and increases adsorption effect, when magnet powder can adsorb engine combustion, sneak into the metal impurities of machine oil; Add auxiliary agent, safety and environmental protection, has good resistance to water and oil resistivity; By the combination of ceramic material and filter paper, durable, filter effective, advantages of good adsorption effect.
Specific embodiments
Below by instantiation, the present invention is described in detail.
Add a Waterproofing/oilproofing oil filter filter paper for nano titanium oxide, by following weight portion (kilogram) raw material make: willow latex 36, useless rope made of hemp slurry 60, nano titanium oxide 2, powdered whiting 2, zeolite 2, magnet powder 1, short glass fiber 1, silane coupler WD-10 0.5, sesbania gum 0.3, guar gum 0.4, polyamine epichlorohydrin resin 5, carboxymethyl cellulose 2, octanol 0.3, castor oil 0.2, auxiliary agent 1;
Described auxiliary agent by following weight portion (kilogram) raw material make: kaolin 7, clay 5, zirconium English powder 4, barium monoxide 2, aluminium hydroxide 2, nylon 12 14, triethyl citrate 2, acetic acid 1; First preparation method puts into ball mill by kaolin, clay, zirconium English powder, barium monoxide, aluminium hydroxide, wears into 100-140 object powder, mixes; Then nylon 12 is heated to soften, adds all the other residual componentss to stir after 15-25 minute and add mixed-powder, send into double screw extruder granulation, obtain particulate material; Finally particulate material is put into flour mill and pulverize, to obtain final product.
A kind of Waterproofing/oilproofing oil filter filter paper that adds nano titanium oxide of the present invention, made by following concrete steps:
(1) nano titanium oxide, powdered whiting, zeolite, magnet powder, short glass fiber are mixed, grind to form 50-100 object powder, add silane coupler WD-10, with the speed of 850-950 rev/min, stir 25-30 minute, then 110-120 DEG C dry 1.5-2.5 hour stand-by;
(2) willow latex, useless rope made of hemp slurry are put into hydrabrusher size degradation, then through beater, beating consistency is controlled at 5.8-6.5%, makes slurry;
(3) compound of step (1) is added in slurry, add octanol, castor oil, be heated to 65-75 DEG C, stir, add appropriate water size mixing to solid content be 2.5-3.5%, the slurry mixing up, after forming web moulding, aspirates dehydration to the l Water Paper after moulding under the vacuum condition of 0.05-0.08Mpa;
(4) all the other residual componentss are mixed, dilute with water, then heating, temperature is controlled at 60-70 DEG C, boils 50-60 minute, and insulation 25-30 minute, is warming up to 70-75 DEG C, stirs and makes dipping emulsion; (5) make the even dipping emulsion of paper after step (3) dehydration with spreader, repeated multiple times, use up to dipping emulsion, then will in paper electric drying oven with forced convection flood, dry 4-5min, finally on polisher, be dried 6-9min, after taking-up and get final product.
After testing, bursting strength 350 KPa of the filter paper that the present invention makes, Air permenbility 85-89 L/m
2between s, maximum diameter of hole is 75 μ m, and average pore size is 55 μ m, filter efficiency 92.0%.
Claims (2)
1. one kind is added the Waterproofing/oilproofing oil filter filter paper of nano titanium oxide, it is characterized in that, made by the raw material of following weight portion: willow latex 36-41, the useless rope made of hemp slurry 60-63, nano titanium oxide 2-3, powdered whiting 2-3, zeolite 2-4, magnet powder 1-2, short glass fiber 1-2, silane coupler WD-10 0.5-1, sesbania gum 0.3-0.5, guar gum 0.4-0.5, polyamine epichlorohydrin resin 5-7, carboxymethyl cellulose 2-4, octanol 0.3-0.5, castor oil 0.2-0.4, auxiliary agent 1-2;
Described auxiliary agent is made up of the raw material of following weight portion: kaolin 7-9, clay 5-8, zirconium English powder 4-6, barium monoxide 2-3, aluminium hydroxide 2-3, nylon 12 14-16, triethyl citrate 2-3, acetic acid 1-2; First preparation method puts into ball mill by kaolin, clay, zirconium English powder, barium monoxide, aluminium hydroxide, wears into 100-140 object powder, mixes; Then nylon 12 is heated to soften, adds all the other residual componentss to stir after 15-25 minute and add mixed-powder, send into double screw extruder granulation, obtain particulate material; Finally particulate material is put into flour mill and pulverize, to obtain final product.
2. a kind of Waterproofing/oilproofing oil filter filter paper that adds nano titanium oxide according to claim 1, is characterized in that, is made up of following concrete steps:
(1) nano titanium oxide, powdered whiting, zeolite, magnet powder, short glass fiber are mixed, grind to form 50-100 object powder, add silane coupler WD-10, with the speed of 850-950 rev/min, stir 25-30 minute, then 110-120 DEG C dry 1.5-2.5 hour stand-by;
(2) willow latex, useless rope made of hemp slurry are put into hydrabrusher size degradation, then through beater, beating consistency is controlled at 5.8-6.5%, makes slurry;
(3) compound of step (1) is added in slurry, add octanol, castor oil, be heated to 65-75 DEG C, stir, add appropriate water size mixing to solid content be 2.5-3.5%, the slurry mixing up, after forming web moulding, aspirates dehydration to the l Water Paper after moulding under the vacuum condition of 0.05-0.08Mpa;
(4) all the other residual componentss are mixed, dilute with water, then heating, temperature is controlled at 60-70 DEG C, boils 50-60 minute, and insulation 25-30 minute, is warming up to 70-75 DEG C, stirs and makes dipping emulsion; (5) make the even dipping emulsion of paper after step (3) dehydration with spreader, then will in paper electric drying oven with forced convection flood, dry 4-5min, finally on polisher, be dried 6-9min, after taking-up and get final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410099682.6A CN103938491B (en) | 2014-03-18 | 2014-03-18 | A kind of Waterproofing/oilproofing oil filter filter paper adding nano titanium oxide and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410099682.6A CN103938491B (en) | 2014-03-18 | 2014-03-18 | A kind of Waterproofing/oilproofing oil filter filter paper adding nano titanium oxide and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103938491A true CN103938491A (en) | 2014-07-23 |
| CN103938491B CN103938491B (en) | 2015-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410099682.6A Active CN103938491B (en) | 2014-03-18 | 2014-03-18 | A kind of Waterproofing/oilproofing oil filter filter paper adding nano titanium oxide and preparation method thereof |
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| Country | Link |
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| CN (1) | CN103938491B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106245417A (en) * | 2016-08-05 | 2016-12-21 | 蚌埠威尔特滤清器有限公司 | A kind of high-stiffness filter paper for gasoline filter |
| CN106283832A (en) * | 2016-08-05 | 2017-01-04 | 蚌埠威尔特滤清器有限公司 | A kind of high intensity filter paper for gasoline filter |
| CN108103849A (en) * | 2017-12-18 | 2018-06-01 | 安徽新立滤清器有限公司 | A kind of high-strength water-resistance oil filter filter paper |
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| GB911995A (en) * | 1959-06-09 | 1962-12-05 | Shell Int Research | Paper substitutes |
| JP2007007586A (en) * | 2005-06-30 | 2007-01-18 | Nippon Muki Co Ltd | Filter medium for air filter, and air filter |
| CN102872651A (en) * | 2012-09-25 | 2013-01-16 | 蚌埠凤凰滤清器有限责任公司 | High-filtering precision filter paper of filter for hemp pulp |
| CN102912680A (en) * | 2012-09-20 | 2013-02-06 | 蚌埠凤凰滤清器有限责任公司 | High-temperature resistant fiber filter paper for engine oil filter and preparation method of high-temperature resistant fiber filter paper |
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| GB911995A (en) * | 1959-06-09 | 1962-12-05 | Shell Int Research | Paper substitutes |
| JP2007007586A (en) * | 2005-06-30 | 2007-01-18 | Nippon Muki Co Ltd | Filter medium for air filter, and air filter |
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| CN106283832A (en) * | 2016-08-05 | 2017-01-04 | 蚌埠威尔特滤清器有限公司 | A kind of high intensity filter paper for gasoline filter |
| CN108103849A (en) * | 2017-12-18 | 2018-06-01 | 安徽新立滤清器有限公司 | A kind of high-strength water-resistance oil filter filter paper |
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| Publication number | Publication date |
|---|---|
| CN103938491B (en) | 2015-10-28 |
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