CN115646065B - Fuel composite filter material and preparation method thereof - Google Patents
Fuel composite filter material and preparation method thereof Download PDFInfo
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- CN115646065B CN115646065B CN202211311957.9A CN202211311957A CN115646065B CN 115646065 B CN115646065 B CN 115646065B CN 202211311957 A CN202211311957 A CN 202211311957A CN 115646065 B CN115646065 B CN 115646065B
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- 239000002131 composite material Substances 0.000 title claims abstract description 47
- 239000000463 material Substances 0.000 title claims abstract description 41
- 239000000446 fuel Substances 0.000 title claims abstract description 40
- 238000002360 preparation method Methods 0.000 title claims abstract description 22
- 238000013329 compounding Methods 0.000 claims abstract description 18
- 239000000853 adhesive Substances 0.000 claims abstract description 17
- 230000001070 adhesive effect Effects 0.000 claims abstract description 17
- 229920002635 polyurethane Polymers 0.000 claims abstract description 16
- 239000004814 polyurethane Substances 0.000 claims abstract description 16
- 239000004831 Hot glue Substances 0.000 claims abstract description 12
- 239000004744 fabric Substances 0.000 claims abstract description 10
- 239000004750 melt-blown nonwoven Substances 0.000 claims abstract description 10
- 229920000297 Rayon Polymers 0.000 claims abstract description 6
- 239000000835 fiber Substances 0.000 claims description 24
- 239000011248 coating agent Substances 0.000 claims description 17
- 238000000576 coating method Methods 0.000 claims description 17
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- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 15
- 239000003365 glass fiber Substances 0.000 claims description 15
- 239000005011 phenolic resin Substances 0.000 claims description 15
- 229920001568 phenolic resin Polymers 0.000 claims description 15
- 229920001296 polysiloxane Polymers 0.000 claims description 15
- 239000002994 raw material Substances 0.000 claims description 15
- 238000004026 adhesive bonding Methods 0.000 claims description 13
- 239000000126 substance Substances 0.000 claims description 12
- 238000012216 screening Methods 0.000 claims description 11
- 150000001875 compounds Chemical class 0.000 claims description 10
- 239000012530 fluid Substances 0.000 claims description 10
- 239000002002 slurry Substances 0.000 claims description 10
- 239000011121 hardwood Substances 0.000 claims description 8
- 239000011122 softwood Substances 0.000 claims description 8
- 238000013008 moisture curing Methods 0.000 claims description 3
- 238000000746 purification Methods 0.000 claims description 2
- 239000000428 dust Substances 0.000 abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 12
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- 238000005303 weighing Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
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- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
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- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
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- Filtering Materials (AREA)
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 fabrics in a viscose compounding mode; the adhesive is a moisture-cured polyurethane hot melt adhesive. The fuel composite filter material provided by the invention has the advantages of high filter precision, high dust holding capacity, high oil-water separation efficiency, good high temperature resistance and good solvent resistance, and meets the requirements of the fuel filter material discharged by state VI; the invention also provides a preparation method of the composite.
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 China motor vehicles is gradually improved, and the pollutant emission of a bicycle is reduced by more than 90%, so that the technical upgrading of the automobile industry is effectively promoted. In order to further strengthen the pollution control work of the motor vehicle, the motor vehicle industry proposes to reduce the emission from the source and meet the requirements of the implementation national VI emission standard and the corresponding oil standard.
The pollution of the automobile exhaust of the compression ignition type engine and the gas fuel ignition type engine to the environment is prevented, and the method becomes an important measure for protecting the ecological environment and guaranteeing the health of human bodies. The limit values of nitrogen oxides and particulate matters in the exhaust gas of China's heavy duty car state six are respectively reduced by 77% and 67%. Therefore, the fuel filter material has higher requirements, the filtering precision is required to be higher than 99% of the 4-micron particle filtering efficiency, and the service life (the service life cannot be reduced compared with the prior filtering efficiency of 10 microns) and the oil-water separation efficiency (higher than 90%) are also required to be higher. The common ultrasonic fuel composite filter material is difficult to meet the requirement, 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 spun-bonded 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 spun-bonded non-woven fabric layer is made of polyethylene terephthalate (PET), the melt-blown non-woven fabric layer is made of polybutylene terephthalate (PBT), and the first hot melt adhesive net film included in the stacked composite layer is softened by ultrasonic spot welding, so that the oil-water separation composite filter paper is prepared. 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 prepared by melt-blowing one or more of copolyamide, polyurethane, copolyester and ethylene-vinyl acetate copolymer in any proportion, and the corrugated paper is compounded to the high-frequency vibration extrusion of ultrasonic waves, so that the corrugated waves are damaged, and meanwhile, the dust holding capacity and the filtering efficiency are reduced.
CN111495036B discloses a glass fiber composite filter material, which is prepared from glass wool microfiber and reinforcing fiber, and an organic filter material (polypropylene, polyethylene, polyvinylpyrrolidone, etc.), which are coated with an aqueous adhesive (aqueous polyurethane emulsion is adopted), compounded at room temperature, and then dried and compounded by a compounding roller, wherein the melting point of the polyethylene and the polypropylene filter material is within 120, and the high-temperature preparation process at 190 ℃ is difficult to complete.
CN113085274a discloses a novel sealing method for corrugated composite filter paper of honeycomb filter core and its air outlet end, which comprises corrugated composite filter paper comprising corrugated paper and plain paper, wherein the corrugated composite filter paper of honeycomb filter core forms folds by applying pressure to the uphill section and the downhill section respectively, the double-sided flattening mode can shorten the stroke length of glue dropping, the deformation accumulation degree of the corrugated paper during pressing fixation is small, and the folds are distributed uniformly, so that the wind resistance of the flattened end is greatly improved, namely the bursting strength is increased, the risk of sealing leakage is reduced, but the sealing leakage is limited to filtered air.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides the fuel composite filter material which has high filtering precision, high dust holding capacity, high oil-water separation efficiency, good high temperature resistance and solvent resistance, and meets the requirements of the fuel filter material discharged by state VI; the invention also provides a preparation method of the composite.
The fuel composite filter material is prepared by compounding corrugated base paper and melt-blown non-woven fabrics in a viscose compounding mode;
the adhesive is a moisture-cured polyurethane hot melt adhesive.
The corrugated base paper is prepared by adopting a base paper making mode according to the following raw materials in mass ratio: 20-35% of softwood pulp, 35-45% of hardwood pulp, 10-20% of glass fibers and 20-30% of chemical fibers.
The diameter of the glass fiber is 0.3-0.5 mu m.
The chemical fiber is PET fiber.
The steps of raw paper making comprise the steps of pulp preparation, slurry purification and screening of a flow system and raw paper making.
The specific steps of the base paper making comprise the following steps:
step one: weighing 0.3-0.5 μm glass fiber according to the process proportion, adding into a hydropulper, disintegrating for 5-10min according to the mass concentration of 1-1.5%, adding softwood pulp and hardwood pulp after glass fiber cotton is fully dispersed, disintegrating for 10-20min, adding PET chemical fiber after wood pulp disintegrating is finished, 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 mixing tank, the concentration is adjusted to be 1.5 percent, and the pulp is pumped to a papermaking working section by a pre-papermaking tank.
Step two: and (3) purifying and screening slurry of a flow system: before the pulp is made up, chi Lailiao, the pulp is diluted to 0.5 to 1.0 percent by a primary pulp pump, and then the pulp is subjected to a three-stage heavy sand remover to remove impurities such as glass slag balls and the like in the pulp; because the proportion difference of various raw materials in the slurry proportion is large, three sections of sand removers are selected, and the last section sand removal and slag discharge port is provided with a slurry saver, the slurry removal device is more beneficial to reducing the discharge of good slurry and reducing the loss;
diluting the good pulp treated by the sand remover to 0.05-0.1% by a secondary pulp flushing pump, uniformly dispersing and mixing various fibers in a low concentration state, and making paper by a headbox on a pressure screen; the pressure screen is arranged in front of the headbox, and the pressure screen is mainly used for screening out impurities such as 'doubling' fiber blocks in chemical fibers, and meanwhile, fibers with different specific gravities are fully turbulent and mixed before being formed on a net, so that unstable quality caused by uneven fiber mixing is prevented.
Step three: making base paper: and (3) screening the purified pulp, dehydrating and forming the pulp by using an inclined wire headbox to form a uniform wet paper web, drying the uniform wet paper web by using a drying cylinder, evaporating the uniform wet paper web to moisture, and finally forming a base paper roll. The purpose of adopting the inclined wire headbox is that the inclined wire headbox is a low-concentration former, the net concentration can be as low as five parts per million, different fibers are dispersed and mixed more uniformly in a low-concentration state, and the formed paper has good uniformity. The net-surfing concentration of a common headbox 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 corrugated depth of the corrugated base paper is 0.2mm-0.45mm.
The glue coating type is a compound of phenolic resin and waterproof silicone, the addition mass of the waterproof silicone is 1-3% of the phenolic resin, the glue coating amount is 20-25%, and the single-sided coating step amount for paper is 20-30g/m 2 . The glue coating mode adopts film transfer glue coating, is double-sided glue coating, and is mainly characterized by more accurate metering (glue coatingThe measurement accuracy can be controlled to 0.5g/m 2 Within), small banner gap (banner gap is 1.0g/m 2 In the process of gluing, the gap between the two glue rollers is generally 0.75 times of the thickness of the base paper, so that the pressure on the base paper is small, and the space structure of the base paper is protected. The common soaking type sizing machine has no gap between the sizing rollers, the pressure between the two rollers is generally 0.2-0.4Mpa, and the excessive pressure easily damages the space structure of the base paper, so that the paper resistance 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 paper making raw materials, gluing the paper making raw materials, gluing according to a compound of phenolic resin and waterproof silicone, and preparing the base paper into corrugated base paper;
(2) The moisture-curable polyurethane hot melt adhesive is heated and melted into fluid by adopting an adhesive compounding mode, and is coated on corrugated base paper and melt-blown non-woven fabrics, and the adhesive is compounded together at normal temperature, wherein the coating amount is 5-10g/m 2 Obtaining the fuel composite filter material. The adhesive is heated and melted into fluid, the fluid is coated on the surface of a substrate to be adhered, two objects to be adhered are adhered, the colloid is rapidly cooled to generate initial adhesion to generate positioning effect (physical solidification), and simultaneously the colloid continuously acts with moisture in the air or trace moisture in the substrate to be adhered to generate chemical crosslinking reaction and chain extension reaction (chemical solidification), and a high-molecular polymer with high cohesive force is generated after the crosslinking reaction, and once solidified, the adhesive shows extraordinary waterproofness, chemical corrosion resistance and extremely high weather resistance.
The fuel composite filter material 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, and utilizes the characteristic of small diameter of the glass fiber to enable gaps formed in the paper to be smaller so as to achieve high filtering efficiency, but the dust holding capacity of the paper is reduced along with the increase of normal filtering efficiency, and the invention adopts chemical fiber (PET fiber) with the dust holding capacity larger than wood pulp to reduce the web with the reduced dust holding capacity of the base paper. In order to improve the dust holding capacity of the base paper, the base paper is corrugated, the corrugated depth is more than 0.2mm, the dust holding capacity of the base paper is improved by about 10%, and the subsequent non-woven fabric compounding process adopts a viscose compounding mode, so that the traditional ultrasonic compounding mode is not adopted any more; meanwhile, the composite glue coating of the composite phenolic resin and the waterproof silicone is adopted, so that the higher waterproof performance is achieved. The invention adopts corrugated base paper and combines with viscose glue, and adopts moisture curing Polyurethane (PUR).
Compared with the prior art, the invention has the following beneficial effects:
(1) The fuel composite filter material has high filter precision, high dust holding capacity and high oil-water separation efficiency, and meets the higher requirements of the national VI emission standard on the fuel filter material.
(2) The fuel composite filter material prepared by the method of the invention adopts corrugated base paper with corrugated depth, and improves dust holding capacity of the base paper.
(3) The fuel composite filter material prepared by the method has good water resistance and solvent resistance and prolonged service life.
Detailed Description
The invention will be further illustrated with reference to specific examples.
The raw materials used were all from commercial products.
Example 1
The preparation method of the fuel composite filter material comprises the following steps:
(1) Making base paper:
step one: weighing 10% of 0.3-0.5 mu m glass fiber, adding into a hydropulper, crushing for 5min according to the mass concentration of 1%, adding 25% of softwood pulp and 40% of hardwood pulp after glass fiber cotton is fully dispersed, crushing for 10min, adding 25% of PET chemical fiber after wood pulp crushing is finished, and crushing 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 mixing tank, the concentration is adjusted to be 1.5 percent, and the pulp is pumped to a papermaking working section by a pre-papermaking tank.
Step two: and (3) purifying and screening slurry of a flow system: before the pulp is made up, chi Lailiao, the pulp is diluted to 0.5 percent by a primary pulp pump and then is subjected to a three-stage heavy sand remover to remove impurities such as glass slag balls and the like in the pulp;
the good pulp treated by the sand remover is diluted to 0.05% by a secondary pulp flushing pump, so that various fibers are uniformly dispersed and mixed in a low concentration state, and then the pulp is manufactured by a headbox on a pressure screen.
Step three: making base paper: and (3) screening the purified pulp, dehydrating and forming the pulp by using an inclined wire headbox to form a uniform wet paper web, drying the uniform wet paper web by using a drying cylinder, evaporating the uniform wet paper web to moisture, and finally forming a base paper roll.
(2) Preparing base paper by using paper making raw materials, gluing the paper making raw materials, gluing according to a compound of phenolic resin and waterproof silicone, and preparing the base paper into corrugated base paper; the addition mass of the waterproof silicone is 1% of that of the phenolic resin, the glue coating amount is 20%, and the corrugated depth of the corrugated base paper is 0.2mm.
(3) The compound of the moisture-curable polyurethane hot melt adhesive and the waterproof agent is heated and melted into fluid by adopting an adhesive compounding mode, the fluid is coated on corrugated base paper and melt-blown non-woven fabric, and the adhesive is compounded at normal temperature, wherein the coating amount is 5g/m 2 Obtaining the fuel composite filter material.
Example 2
The preparation method of the fuel composite filter material comprises the following steps:
(1) Making base paper:
step one: weighing 15% of 0.3-0.5 mu m glass fiber, adding into a hydropulper, crushing for 10min according to the mass concentration of 1.5%, adding 20% of softwood pulp and 45% of hardwood pulp after glass fiber cotton is fully dispersed, crushing for 20min, adding 20% of PET chemical fiber after wood pulp crushing is finished, and crushing for 5min;
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 mixing tank, the concentration is adjusted to be 1.5 percent, and the pulp is pumped to a papermaking working section by a pre-papermaking tank.
Step two: and (3) purifying and screening slurry of a flow system: before the pulp is made up, chi Lailiao, the pulp is diluted to 1.0% by a primary pulp pump, and then the pulp is subjected to a three-stage heavy sand remover to remove impurities such as glass slag balls and the like in the pulp;
the good pulp treated by the sand remover is diluted to 0.1% by a secondary pulp flushing pump, so that various fibers are uniformly dispersed and mixed in a low concentration state, and then the pulp is manufactured by a headbox on a pressure screen.
Step three: making base paper: and (3) screening the purified pulp, dehydrating and forming the pulp by using an inclined wire headbox to form a uniform wet paper web, drying the uniform wet paper web by using a drying cylinder, evaporating the uniform wet paper web to moisture, and finally forming a base paper roll.
(2) Preparing base paper by using paper making raw materials, gluing the paper making raw materials, gluing according to a compound of phenolic resin and waterproof silicone, and preparing the base paper into corrugated base paper; the addition mass of the waterproof silicone is 3% of that of the phenolic resin, the glue coating amount is 25%, and the corrugated depth of the corrugated base paper is 0.3mm.
(3) The compound of the moisture-curable polyurethane hot melt adhesive and the waterproof agent is heated and melted into fluid by adopting an adhesive compounding mode, the fluid is coated on corrugated base paper and melt-blown non-woven fabric, and the adhesive is compounded at normal temperature, wherein the coating amount is 8g/m 2 Obtaining the fuel composite filter material.
Example 3
The preparation method of the fuel composite filter material comprises the following steps:
(1) Making base paper:
step one: weighing 15% of 0.3-0.5 mu m glass fiber, adding into a hydropulper, crushing for 8min according to the mass concentration of 1.2%, adding 20% of softwood pulp and 35% of hardwood pulp after glass fiber cotton is fully dispersed, crushing for 15min, adding 30% of PET chemical fiber after wood pulp crushing is completed, and crushing 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 mixing tank, the concentration is adjusted to be 1.5 percent, and the pulp is pumped to a papermaking working section by a pre-papermaking tank.
Step two: and (3) purifying and screening slurry of a flow system: before the pulp is made up, chi Lailiao, the pulp is diluted to 0.8 percent by a primary pulp pump and then is subjected to a three-stage heavy sand remover to remove impurities such as glass slag balls and the like in the pulp;
the good pulp treated by the sand remover is diluted to 0.08% by a secondary pulp flushing pump, so that various fibers are uniformly dispersed and mixed in a low concentration state, and then the pulp is manufactured by a headbox on a pressure screen.
Step three: making base paper: and (3) screening the purified pulp, dehydrating and forming the pulp by using an inclined wire headbox to form a uniform wet paper web, drying the uniform wet paper web by using a drying cylinder, evaporating the uniform wet paper web to moisture, and finally forming a base paper roll.
(2) Preparing base paper by using paper making raw materials, gluing the paper making raw materials, gluing according to a compound of phenolic resin and waterproof silicone, and preparing the base paper into corrugated base paper; the addition mass of the waterproof silicone is 2% of that of the phenolic resin, the glue coating amount is 25%, and the corrugated depth of the corrugated base paper is 0.45mm.
(3) The compound of the moisture-curable polyurethane hot melt adhesive and the waterproof agent is heated and melted into fluid by adopting an adhesive compounding mode, the fluid is coated on corrugated base paper and melt-blown non-woven fabric, and the adhesive is compounded at normal temperature, wherein the coating amount is 10g/m 2 Obtaining the fuel composite filter material.
Comparative example 1
The preparation of the fuel composite filter material comprises the following steps:
the base paper of step (2) of example 1 was laminated with a nonwoven fabric, and the procedure was the same as in example 1.
Comparative example 2
The preparation of the fuel composite filter material comprises the following steps:
the base paper of step (2) of example 1 was sized with phenolic resin alone, and the procedure was otherwise identical to that of example 1.
Comparative example 3
The preparation of the fuel composite filter material comprises the following steps:
the raw materials for manufacturing the base paper in the step (1) in the embodiment 1 are prepared according to the following mass ratio: softwood pulp (50%), hardwood pulp (50%) were prepared, and the procedure of example 1 was followed.
Comparative example 4
The preparation of the fuel composite filter material comprises the following steps:
the adhesive in step (3) of example 1 was replaced with high density polyethylene, and the procedure was the same as in example 1.
The fuel composite filters prepared in examples 1 to 3 and comparative examples 1 to 4 were subjected to performance test, and the test results are shown in Table 1. Wherein, the dust holding capacity and the filtering precision standard are ISO-4548; the detection standard of the oil-water separation efficiency is as follows: ISO16332-2008; the filtration accuracy 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.
TABLE 1 detection results
From the comparison of the above experimental data, example 2 is the best embodiment of the present invention. Other embodiments of the invention adopt corrugated base paper and a viscose compounding mode, and after the moisture curing Polyurethane (PUR) is adopted for compounding, the filter material has high filter precision, high dust holding capacity and high oil-water separation efficiency, and meets the higher requirements of national VI emission standards on fuel filter materials. In comparative example 1, the filter efficiency was not significantly changed and the standard was achieved, but the dust holding capacity was reduced by about 15%, and the service life was also lowered (test time was reduced from 168 minutes to 123 minutes). In comparative example 2, only phenolic resin was coated, no waterproof silicone was added, and the filtration efficiency, dust holding capacity and test time were not significantly changed, but the oil-water separation efficiency was significantly reduced by 78.3%, and the standard of 95% or more could not be satisfied. In comparative example 3, the filtration efficiency of the paper was remarkably reduced and the dust holding capacity and the oil-water analysis efficiency were also low only by using the wood pulp fiber, because the mere wood pulp fiber produced the base paper with a large pore size had a low filtration efficiency, and even if the waterproof silicone was added, the water having a small diameter could not be blocked from passing through the filter material, resulting in a low water separation efficiency. In comparative example 4, the high-density polyethylene was used instead of PUR glue, the filtration accuracy was not significantly changed, the dust holding amount was low, and the test time was also reduced, mainly because the high-density polyethylene had poor oil resistance, and the filtration passage of the paper was easily blocked during the compounding process, so that the dust holding amount was reduced.
Of course, the foregoing is merely preferred embodiments of the present invention and is not to be construed as limiting the scope of the embodiments of the present invention. The present invention is not limited to the above examples, and those skilled in the art will appreciate that the present invention is capable of equally varying and improving within the spirit and scope of the present invention.
Claims (6)
1. The utility model provides a fuel composite filter material which characterized in that: is prepared by compounding corrugated base paper and melt-blown non-woven fabrics in a viscose compounding mode;
the adhesive is compounded by moisture curing polyurethane hot melt adhesive;
the corrugated base paper is prepared by adopting a base paper making mode according to the following raw materials in mass ratio: 20-35% of softwood pulp, 35-45% of hardwood pulp, 10-20% of glass fibers and 20-30% of chemical fibers;
the glue coating type is a compound of phenolic resin and waterproof silicone, the addition mass of the waterproof silicone is 1-3% of the phenolic resin, and the glue coating amount is 20-25%;
the preparation method of the fuel composite filter material comprises the following steps:
(1) Preparing base paper by using paper making raw materials, gluing the paper making raw materials, gluing according to a compound of phenolic resin and waterproof silicone, and preparing the base paper into corrugated base paper;
(2) The moisture-curable polyurethane hot melt adhesive is heated and melted into fluid by adopting an adhesive compounding mode, and is coated on corrugated base paper and melt-blown non-woven fabrics, and the adhesive is compounded together at normal temperature, wherein the coating amount is 5-10g/m 2 Obtaining the fuel composite filter material.
2. The fuel composite filter according to claim 1, wherein: the diameter of the glass fiber is 0.3-0.5 μm.
3. The fuel composite filter according to claim 1, wherein: the chemical fiber is PET fiber.
4. The fuel composite filter according to claim 1, wherein: the steps of raw paper making comprise the steps of pulp preparation, slurry purification and screening of a flow system and raw paper making.
5. The fuel composite filter according to claim 1, wherein: the preparation of the corrugated base paper comprises the step of gluing the manufactured base paper to prepare the corrugated base paper.
6. The fuel composite filter according to claim 5, wherein: the corrugated depth of the corrugated base paper is 0.2mm-0.45mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211311957.9A CN115646065B (en) | 2022-10-25 | 2022-10-25 | Fuel composite filter material and preparation method thereof |
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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 |
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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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