CN115646065A - Fuel composite filter material and preparation method thereof - Google Patents
Fuel composite filter material and preparation method thereof Download PDFInfo
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- CN115646065A CN115646065A CN202211311957.9A CN202211311957A CN115646065A CN 115646065 A CN115646065 A CN 115646065A CN 202211311957 A CN202211311957 A CN 202211311957A CN 115646065 A CN115646065 A CN 115646065A
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- 239000000463 material Substances 0.000 title claims abstract description 51
- 239000002131 composite material Substances 0.000 title claims abstract description 50
- 239000000446 fuel Substances 0.000 title claims abstract description 34
- 238000002360 preparation method Methods 0.000 title claims abstract description 22
- 238000013329 compounding Methods 0.000 claims abstract description 24
- 229920002635 polyurethane Polymers 0.000 claims abstract description 16
- 239000004814 polyurethane Substances 0.000 claims abstract description 16
- 239000004744 fabric Substances 0.000 claims abstract description 15
- 239000004750 melt-blown nonwoven Substances 0.000 claims abstract description 15
- 229920000297 Rayon Polymers 0.000 claims abstract description 13
- 239000004831 Hot glue Substances 0.000 claims abstract description 12
- 238000013008 moisture curing Methods 0.000 claims abstract description 9
- 239000000835 fiber Substances 0.000 claims description 24
- 238000004026 adhesive bonding Methods 0.000 claims description 18
- 239000011248 coating agent Substances 0.000 claims description 18
- 238000000576 coating method Methods 0.000 claims description 18
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- 238000000034 method Methods 0.000 claims description 16
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- 229920001296 polysiloxane Polymers 0.000 claims description 15
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 14
- 229920001568 phenolic resin Polymers 0.000 claims description 14
- 239000000126 substance Substances 0.000 claims description 12
- 239000003292 glue Substances 0.000 claims description 11
- 238000012216 screening Methods 0.000 claims description 11
- 239000002994 raw material Substances 0.000 claims description 10
- 150000001875 compounds Chemical class 0.000 claims description 8
- 239000000295 fuel oil Substances 0.000 claims description 8
- 239000011121 hardwood Substances 0.000 claims description 8
- 239000011122 softwood Substances 0.000 claims description 8
- 238000002844 melting Methods 0.000 claims description 6
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- 238000010438 heat treatment Methods 0.000 claims description 5
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- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
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Abstract
The invention belongs to the technical field of preparation of filter materials for automobiles, and particularly relates to a fuel composite filter material and a preparation method thereof. The fuel composite filter material is prepared by compounding corrugated base paper and melt-blown non-woven fabric in a viscose compounding mode; the viscose is compounded by adopting a moisture curing type polyurethane hot melt adhesive. The fuel composite filter material provided by the invention has the advantages of high filtering precision, high dust holding capacity, high oil-water separation efficiency, good high temperature resistance and good solvent resistance, and meets the requirement of fuel filtering materials discharged by the country VI; the invention also provides a preparation method of the composition.
Description
Technical Field
The invention belongs to the technical field of preparation of filter materials for automobiles, and particularly relates to a fuel composite filter material and a preparation method thereof.
Background
In recent years, the pollutant emission standard of Chinese motor vehicles is gradually improved, the pollutant emission of single vehicles is reduced by more than 90%, and the technical upgrading of the automobile industry is effectively promoted. In order to further strengthen the pollution prevention and control work of the motor vehicle, the motor vehicle industry provides the requirements of reducing emission from the source and implementing the national VI emission standard and the corresponding oil product standard.
The method can prevent and control the pollution of automobile exhaust gas of compression ignition type and gas fuel ignition type engines to the environment, and becomes an important measure for protecting the ecological environment and guaranteeing the human health. The limit values of nitrogen oxides and particulate matters in the exhaust gas of the sixth national heavy-duty vehicle country are respectively reduced by 77 percent and 67 percent. Therefore, higher requirements are put on the fuel filtering material, the filtering precision is required to be more than 99% of the filtering efficiency of 4-micron particles, and higher requirements are also put on the service life (the service life cannot be reduced compared with the prior filtering efficiency of 10 microns) and the oil-water separation efficiency (more than 90%). The common ultrasonic fuel composite filter material is difficult to meet the requirements, and a novel high-performance composite filter material needs to be prepared to meet the requirements of downstream customers.
CN110158362A discloses an oil-water separation composite filter paper, which is formed by sequentially superposing a spunbonded non-woven fabric layer, a first hot melt adhesive net film, a melt-blown non-woven fabric layer and a filter paper layer together to form a superposed composite layer; the spunbonded non-woven fabric layer is made of polyethylene terephthalate (PET), the melt-blown non-woven fabric layer is made of polybutylene terephthalate (PBT), and a first hot melt adhesive net film included in the superposed composite layer is softened by ultrasonic spot welding, so that the oil-water separation composite filter paper is manufactured. The first hot melt adhesive net film is prepared by melt-blowing one or more of copolyamide, polyurethane, copolyester and ethylene-vinyl acetate copolymer in any proportion; the second hot melt adhesive net film is made of one or more of copolyamide, polyurethane, copolyester and ethylene-vinyl acetate copolymer through melt-blowing in any proportion, and corrugated paper is compounded to perform high-frequency vibration extrusion of ultrasonic waves, so that the corrugated paper is damaged, and meanwhile, the dust holding capacity and the filtering efficiency are reduced.
CN111495036B discloses a glass fiber composite filter material, which is prepared by coating a glass fiber filter material (prepared from microfiber glass wool and reinforcing fibers) and an organic filter material (such as polypropylene, polyethylene, polyvinylpyrrolidone, and the like) with an aqueous adhesive (aqueous polyurethane emulsion can be adopted), compounding at room temperature, drying, and compounding by using a compounding roller, wherein the melting points of the polyethylene and polypropylene filter materials are within 120, so that the 190 ℃ high-temperature preparation process is difficult to complete.
CN113085274A discloses a honeycomb filter element corrugated composite filter paper and a novel sealing method for the air outlet end thereof, including that the corrugated composite filter paper includes corrugated paper and plain paper, this honeycomb filter element corrugated composite filter paper is because it forms folds by applying pressure to the uphill section and downhill section respectively, this kind of bilateral flattening mode can make the stroke length of glue dripping shorten half, the deformation accumulation degree of the corrugated paper when pressing and fixing is small, the folds are distributed uniformly, thereby the wind resistance capability of the flattened end is greatly improved, that is to say, the burst strength is increased, the sealing leakage risk is reduced, but only limited to filtered air.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art, and provide a fuel composite filter material which has high filtering precision, high dust holding capacity, high oil-water separation efficiency, good high temperature resistance and good solvent resistance, and meets the requirement of fuel filtering materials discharged by the country VI; the invention also provides a preparation method of the composition.
The fuel composite filter material is prepared by compounding corrugated base paper and melt-blown non-woven fabrics in a viscose compounding mode;
the viscose is compounded by adopting moisture curing type polyurethane hot melt adhesive.
The preparation of the corrugated base paper is prepared by adopting a raw paper making mode according to the following raw materials by mass ratio: 20-35% of softwood pulp, 35-45% of hardwood pulp, 10-20% of glass fiber and 20-30% of chemical fiber.
The diameter of the glass fiber is 0.3-0.5 μm.
The chemical fiber is PET fiber.
The manufacturing step of the base paper comprises the steps of preparing pulp → purifying and screening pulp of a flow system → manufacturing the base paper.
The specific steps of the paper making of the base paper comprise the following steps:
the method comprises the following steps: weighing 0.3-0.5 mu m of glass fiber according to the process proportion, adding into a hydrapulper, disintegrating for 5-10min according to the mass concentration of 1-1.5%, adding softwood pulp and hardwood pulp after the glass fiber cotton is fully dispersed, disintegrating for 10-20min, adding PET chemical fiber after the wood pulp is disintegrated, and disintegrating for 3-5 min;
after the disintegration is finished, the pulp is pumped to a pulp storage tank by a high-frequency fluffer, the concentration is adjusted to be 2.5 percent, the pulp is pumped to a pulp distribution tank, the concentration is adjusted to be 1.5 percent, and then the pulp is pumped to a papermaking working section by a pre-papermaking tank.
Step two: slurry purification and screening of an approach system: feeding the material from a forebay, diluting the material to 0.5-1.0% by a primary fan pump, and removing impurities such as glass slag balls in the slurry by a three-section heavy sand remover; because the proportion difference of various raw materials in the slurry proportion is large, three sections of desanders are selected, and the tail-section desanding and deslagging port is provided with a slurry saver, thereby being more beneficial to reducing discharge of good slurry and reducing loss;
diluting the good pulp treated by the sand remover to 0.05-0.1% by a secondary fan pump, uniformly dispersing and mixing various fibers in a low-concentration state, and then manufacturing by a pulp flowing box on a pressure screen; the pressure screen is arranged in front of the head box, and is mainly used for screening out impurities such as 'doubling' fiber blocks in chemical fibers, enabling the fibers with different specific gravities to be fully and turbulently mixed before net-laying forming, and preventing the quality from being unstable due to uneven fiber mixing.
Step three: manufacturing base paper: and (3) screening the purified pulp, dehydrating and forming the pulp by an inclined wire pulp flowing box to form a uniform wet paper web, drying the wet paper web by a drying cylinder, and evaporating the water to form the raw paper roll. The inclined-wire pulp flow box is a low-concentration former, the net-feeding concentration can be as low as five ten-thousandths, different fibers are dispersed and mixed more uniformly in a low-concentration state, and the formed paper is good in uniformity. The net-feeding concentration of the common head box can only be about 1%.
The preparation of the corrugated base paper comprises the step of gluing the manufactured base paper to prepare the corrugated base paper.
The corrugation depth of the corrugated base paper is 0.2mm-0.45mm.
The glue is a compound of phenolic resin and waterproof silicone, the addition amount of the waterproof silicone is 1-3% of the phenolic resin, the glue coating amount is 20-25%, and the single-side coating amount is 20-30g/m for paper 2 . The gluing mode adopts film transfer gluing and double-sided gluing, and is mainly characterized by more accurate measurement (the glue coating amount can be controlled to be 0.5g/m 2 Within), the difference of the horizontal width is small (the difference of the horizontal width is 1.0 g/m) 2 In the method), the glue spreading rollers are controlled by a hard limiting gap in the glue spreading process, and the gap between the two glue spreading rollers is usually 0.75 time of the thickness of the base paper, so that the pressure on the base paper is small, and the protection of the space structure of the base paper is facilitated. In the common soaking type sizing machine, no gap is formed between the glue spreading rollers, the pressure between the two rollers is generally 0.2-0.4Mpa, and the excessive pressure easily damages the spatial structure of the base paper, so that the resistance of the paper is increased, and the service life is shortened.
The preparation method of the fuel composite filter material comprises the following steps:
(1) Preparing base paper by using papermaking raw materials, gluing the papermaking paper, gluing according to a compound of phenolic resin and waterproof silicone, and preparing the base paper into corrugated base paper;
(2) Heating and melting moisture-curing polyurethane hot melt adhesive into fluid by adopting an adhesive compounding mode, coating the fluid on corrugated base paper and melt-blown non-woven fabric, and compounding the fluid and the corrugated base paper and the melt-blown non-woven fabric together at normal temperature, wherein the coating weight is 5-10g/m 2 And obtaining the fuel composite filter material. Heating and melting the adhesive into a fluid, coating the fluid on the surface of a substrate to be adhered, adhering two adherends,the colloid is rapidly cooled to generate initial adhesion force to generate a positioning effect (physical curing), meanwhile, the colloid can continuously act with moisture in the air or trace moisture in a bonded substrate to generate a chemical crosslinking reaction and a chain extension reaction (chemical curing), a high polymer with high cohesion is generated after the crosslinking reaction, and once the high polymer is cured, the high polymer shows remarkable waterproofness, chemical corrosion resistance and extremely high weather resistance.
The fuel composite filter material provided by the invention adopts a combination mode of softwood pulp, hardwood pulp + (0.3-0.5 mu m) glass fiber and 1.5D PET fiber to prepare high-precision base paper according to a certain mass ratio, utilizes the characteristic of small diameter of the glass fiber to enable the gaps formed in the paper to become smaller, and further achieves high filtering efficiency, but along with the increase of the normal filtering efficiency, the dust holding capacity of the paper can be reduced, and in order to reduce the reduction of the dust holding capacity of the base paper, the invention adopts the addition of chemical fiber (PET fiber) with the dust holding capacity larger than that of the wood pulp. In order to improve the dust holding capacity of the base paper, the base paper is made into a corrugated shape, the depth of the corrugated shape is more than 0.2mm, the dust holding capacity of the base paper is improved by about 10 percent, and a subsequent composite non-woven fabric process adopts a viscose composite mode and does not adopt a traditional ultrasonic composite mode; meanwhile, the composite glue coating of the composite phenolic resin and the waterproof silicone is adopted, so that the high waterproof performance is achieved. The invention adopts corrugated base paper, combines a viscose compounding mode and adopts moisture curing type (reaction type) Polyurethane (PUR) for compounding.
Compared with the prior art, the invention has the following beneficial effects:
(1) The fuel composite filter material provided by the invention has the advantages of high filtering precision, high dust holding capacity and high oil-water separation efficiency, and meets higher requirements of national VI discharge standards on fuel filter materials.
(2) The fuel composite filter material prepared by the method adopts corrugated base paper with corrugated depth, so that the dust holding capacity of the base paper is improved.
(3) The fuel composite filter material prepared by the method has the advantages of good waterproofness, good solvent resistance and prolonged service life.
Detailed Description
The present invention will be further described with reference to the following specific examples.
All raw materials are from commercial products.
Example 1
The preparation method of the fuel composite filter material comprises the following steps:
(1) Manufacturing base paper:
the method comprises the following steps: weighing 10% of glass fiber with the particle size of 0.3-0.5 μm, adding into a hydrapulper, disintegrating for 5min according to the mass concentration of 1%, after the glass fiber cotton is fully dispersed, adding 25% of softwood pulp and 40% of hardwood pulp, disintegrating for 10min, after the wood pulp is disintegrated, adding 25% PET chemical fiber, and disintegrating for 3min;
after the disintegration is finished, the pulp is pumped to a pulp storage tank by a high-frequency fluffer, the concentration is adjusted to be 2.5 percent, the pulp is pumped to a pulp distribution tank, the concentration is adjusted to be 1.5 percent, and then the pulp is pumped to a papermaking working section by a pre-papermaking tank.
Step two: slurry purification and screening of an approach system: feeding the pulp from a front pond, diluting the pulp to 0.5% by a primary fan pump, and removing impurities such as glass slag balls in the pulp by a three-section heavy sand remover;
the good pulp treated by the sand remover is diluted to 0.05 percent by a secondary fan pump, so that various fibers are uniformly dispersed and mixed in a low concentration state, and then the good pulp is manufactured by a headbox on a pressure screen.
Step three: manufacturing base paper: and (3) screening the purified pulp, dehydrating and forming the pulp by an inclined wire pulp flowing box to form a uniform wet paper web, drying the wet paper web by a drying cylinder, and evaporating the water to form the raw paper roll.
(2) Preparing base paper by using papermaking raw materials, gluing the papermaking paper, gluing according to a compound of phenolic resin and waterproof silicone, and preparing the base paper into corrugated base paper; the adding mass of the waterproof silicone is 1 percent of that of the phenolic resin, the gluing amount is 20 percent, and the corrugation depth of the corrugated base paper is 0.2mm.
(3) Adopting a viscose compounding mode to heat and melt a compound of moisture-cured polyurethane hot melt adhesive and a waterproof agent into fluid, coating the fluid on corrugated base paper and melt-blown non-woven fabric, and compounding the fluid and the corrugated base paper and the melt-blown non-woven fabric together at normal temperature, wherein the coating weight is 5g/m 2 And obtaining the fuel composite filter material.
Example 2
The preparation method of the fuel composite filter material comprises the following steps:
(1) Manufacturing base paper:
the method comprises the following steps: weighing 15% of 0.3-0.5 mu m glass fiber, adding the glass fiber into a hydrapulper, disintegrating for 10min according to the mass concentration of 1.5%, adding 20% of softwood pulp and 45% hardwood pulp after the glass fiber cotton is fully dispersed, disintegrating for 20min, adding 20% PET chemical fiber after the wood pulp is disintegrated, and disintegrating for 5min;
after the disintegrating is finished, the pulp is pumped to a pulp storage tank through a high-frequency fluffer, the concentration is adjusted to be 2.5%, the pulp is pumped to a pulp distribution tank, the concentration is adjusted to be 1.5%, and then the pulp is pumped to a papermaking working section through a pre-papermaking tank.
Step two: slurry purification and screening of an approach system: feeding in a forebay, diluting to 1.0% by a primary fan pump, and removing impurities such as glass slag balls in the slurry by a three-section heavy sand remover;
the good pulp treated by the sand remover is diluted to 0.1 percent by a secondary fan pump, so that various fibers are uniformly dispersed and mixed in a low concentration state, and then the good pulp is manufactured by a headbox on a pressure screen.
Step three: manufacturing base paper: and (3) screening the purified pulp, dehydrating and forming the pulp by an inclined wire pulp flowing box to form a uniform wet paper web, drying the wet paper web by a drying cylinder, and evaporating the water to form the raw paper roll.
(2) Preparing base paper by adopting papermaking raw materials, gluing the papermaking paper, gluing according to a compound of phenolic resin and waterproof silicone, and preparing the base paper into corrugated base paper; the adding mass of the waterproof silicone is 3 percent of that of the phenolic resin, the gluing amount is 25 percent, and the corrugation depth of the corrugated base paper is 0.3mm.
(3) Heating and melting the complex of the moisture curing type polyurethane hot melt adhesive and the waterproof agent into fluid by adopting a viscose compounding mode, coating the fluid on corrugated base paper and melt-blown non-woven fabric, and compounding the fluid and the corrugated base paper and the melt-blown non-woven fabric together at normal temperature, wherein the coating weight is 8g/m 2 And obtaining the fuel composite filter material.
Example 3
The preparation method of the fuel composite filter material comprises the following steps:
(1) Manufacturing base paper:
the method comprises the following steps: weighing 15% of 0.3-0.5 mu m glass fiber, adding the glass fiber into a hydrapulper, disintegrating for 8min according to the mass concentration of 1.2%, adding 20% of softwood pulp and 35% of hardwood pulp after the glass fiber cotton is fully dispersed, disintegrating for 15min, adding 30% of PET chemical fiber after the wood pulp is disintegrated, and disintegrating for 4min;
after the disintegration is finished, the pulp is pumped to a pulp storage tank by a high-frequency fluffer, the concentration is adjusted to be 2.5 percent, the pulp is pumped to a pulp distribution tank, the concentration is adjusted to be 1.5 percent, and then the pulp is pumped to a papermaking working section by a pre-papermaking tank.
Step two: purifying and screening slurry of an approach system: feeding in a forebay, diluting to 0.8% by a primary fan pump, and removing impurities such as glass slag balls in the slurry by a three-section heavy sand remover;
the good pulp treated by the sand remover is diluted to 0.08 percent by a secondary fan pump, so that various fibers are uniformly dispersed and mixed in a low concentration state, and then the good pulp is manufactured by a headbox on a pressure screen.
Step three: manufacturing base paper: and (3) screening the purified pulp, dehydrating and forming the pulp by an inclined wire pulp flowing box to form a uniform wet paper web, drying the wet paper web by a drying cylinder, and evaporating the water to form the raw paper roll.
(2) Preparing base paper by using papermaking raw materials, gluing the papermaking paper, gluing according to a compound of phenolic resin and waterproof silicone, and preparing the base paper into corrugated base paper; the adding mass of the waterproof silicone is 2 percent of that of the phenolic resin, the gluing amount is 25 percent, and the corrugation depth of the corrugated base paper is 0.45mm.
(3) Heating and melting the complex of the moisture curing type polyurethane hot melt adhesive and the waterproof agent into fluid by adopting a viscose compounding mode, coating the fluid on corrugated base paper and melt-blown non-woven fabric, and compounding the fluid and the corrugated base paper and the melt-blown non-woven fabric together at normal temperature, wherein the coating weight is 10g/m 2 And obtaining the fuel composite filter material.
Comparative example 1
Preparation of a fuel composite filter material:
the base paper of step (2) in example 1 was prepared into a flat paper sheet, and compounded with a nonwoven fabric, and the operation was the same as that of example 1 except for the above.
Comparative example 2
Preparation of a fuel composite filter material:
the base paper of step (2) of example 1 was coated with only a phenol resin, and the procedure of example 1 was otherwise the same.
Comparative example 3
Preparation of a fuel composite filter material:
the raw materials for manufacturing the base paper in the step (1) in the example 1 are mixed according to the following mass ratio: softwood pulp (50%) and hardwood pulp (50%) were prepared, all other things being the same as in example 1.
Comparative example 4
Preparation of a fuel composite filter material:
the adhesive in step (3) in example 1 was replaced with high density polyethylene, and the procedure was otherwise the same as in example 1.
The fuel oil composite filter materials prepared in the above examples 1-3 and comparative examples 1-4 were subjected to performance testing, and the test results are shown in table 1. Wherein the dust holding capacity and the filtration precision standard are ISO-4548; the detection standard of the oil-water separation efficiency is as follows: ISO16332-2008; the filtration precision was 4 μm particle filtration efficiency. Wherein the high temperature resistance is tested at 190 ℃ for 10 minutes, and whether the high temperature resistance is separated or not is determined.
TABLE 1 test results
From the comparison of the above experimental data, example 2 is the best embodiment of the present invention. Other embodiments of the invention demonstrate that after the corrugated base paper is adopted, the viscose compounding mode is matched, and the moisture curing type (reaction type) Polyurethane (PUR) is adopted for compounding, the filtering material has high filtering precision, high dust holding capacity and high oil-water separation efficiency, and meets the higher requirements of national VI discharge standards on fuel filtering materials. In comparative example 1, the filtration efficiency was not significantly changed and the standard was achieved when the paper was made into a flat sheet, but the dust holding amount was reduced by about 15% and the service life was also reduced (test time was reduced from 168 minutes to 123 minutes). In comparative example 2, only the phenolic resin was coated, and the waterproof silicone was not added, and the filtration efficiency, the dust holding amount, and the test time were not significantly changed, but the oil-water separation efficiency was significantly reduced to only 78.3%, and the standard of not less than 95% could not be satisfied. In comparative example 3, only use wood pulp fiber to produce the base stock, the filtration efficiency of paper obviously reduces, holds the dirt volume, and oil water analysis efficiency is also low, this is because pure wood pulp fiber, the base stock aperture of making is very big, and filtration efficiency is low, even has added waterproof silicone, can not block the water droplet that the diameter is little and pass through the filter media yet, leads to the separation of water inefficiency. In comparative example 4, the PUR gum was replaced with high density polyethylene, the filtration accuracy was not significantly changed, the dust holding capacity was low, and the test time was also reduced, mainly because high density polyethylene had poor oil resistance, and the dust holding capacity was reduced because the filter passage of the paper was easily clogged during the compounding process.
Of course, the foregoing is only a preferred embodiment of the invention and should not be taken as limiting the scope of the embodiments of the invention. The present invention is not limited to the above examples, and equivalent changes and modifications made by those skilled in the art within the spirit and scope of the present invention should be construed as being included in the scope of the present invention.
Claims (9)
1. The fuel composite filter material is characterized in that: the paper is prepared by compounding corrugated base paper and melt-blown non-woven fabric in a viscose compounding way;
the viscose is compounded by adopting moisture curing type polyurethane hot melt adhesive.
2. The fuel oil composite filter material of claim 1, which is characterized in that: the preparation of the corrugated base paper is prepared by adopting a raw paper manufacturing mode according to the mass ratio of the following raw materials: 20-35% of softwood pulp, 35-45% of hardwood pulp, 10-20% of glass fiber and 20-30% of chemical fiber.
3. The fuel oil composite filter material of claim 2, which is characterized in that: the diameter of the glass fiber is 0.3-0.5 μm.
4. The fuel oil composite filter material of claim 3, characterized in that: the chemical fiber is PET fiber.
5. The fuel oil composite filter material of claim 2, which is characterized in that: the manufacturing step of the base paper comprises the steps of preparing pulp → purifying and screening pulp of a flow system → manufacturing the base paper.
6. The fuel oil composite filter material of claim 2, which is characterized in that: the preparation of the corrugated base paper comprises the step of gluing the manufactured base paper to obtain the corrugated base paper.
7. The fuel oil composite filter material of claim 6, which is characterized in that: the corrugation depth of the corrugated base paper is 0.2mm-0.45mm.
8. The fuel oil composite filter material according to claim 6, characterized in that: the glue coating type is a compound of phenolic resin and waterproof silicone, the adding mass of the waterproof silicone is 1-3% of the phenolic resin, and the glue coating amount is 20-25%.
9. The preparation method of the fuel composite filter material of any one of claims 1 to 8, which is characterized by comprising the following steps: the method comprises the following steps:
(1) Preparing base paper by using papermaking raw materials, gluing the papermaking paper, gluing according to a compound of phenolic resin and waterproof silicone, and preparing the base paper into corrugated base paper;
(2) Heating and melting moisture-curing polyurethane hot melt adhesive into fluid by adopting a viscose compounding mode, coating the fluid on corrugated base paper and melt-blown non-woven fabric, and compounding the fluid and the corrugated base paper and the melt-blown non-woven fabric together at normal temperature, wherein the coating weight is 5-10g/m 2 And obtaining the fuel composite filter material.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201420212Y (en) * | 2009-05-14 | 2010-03-10 | 杭州特种纸业有限公司 | High-precision oil-water separation fuel filter paper |
| CN107921344A (en) * | 2015-08-22 | 2018-04-17 | 奥斯龙明士克公司 | Self-cleaning filter |
| CN110158362A (en) * | 2018-03-01 | 2019-08-23 | 山东仁丰特种材料股份有限公司 | A kind of water-oil separating composite filter paper and preparation method thereof |
| CN115058224A (en) * | 2022-06-27 | 2022-09-16 | 浙江华峰合成树脂有限公司 | Reactive polyurethane hot melt adhesive |
-
2022
- 2022-10-25 CN CN202211311957.9A patent/CN115646065B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201420212Y (en) * | 2009-05-14 | 2010-03-10 | 杭州特种纸业有限公司 | High-precision oil-water separation fuel filter paper |
| CN107921344A (en) * | 2015-08-22 | 2018-04-17 | 奥斯龙明士克公司 | Self-cleaning filter |
| CN108136302A (en) * | 2015-08-22 | 2018-06-08 | 奥斯龙明士克公司 | With carry it is efficient for from water-hydrocarbon emulsion remove water fuel moisture from filter medium |
| CN110158362A (en) * | 2018-03-01 | 2019-08-23 | 山东仁丰特种材料股份有限公司 | A kind of water-oil separating composite filter paper and preparation method thereof |
| CN115058224A (en) * | 2022-06-27 | 2022-09-16 | 浙江华峰合成树脂有限公司 | Reactive polyurethane hot melt adhesive |
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