CN103599664A - Preparation method of ultrafine oxygen-containing inorganic fiber bundles reinforced by aldehyde resin - Google Patents
Preparation method of ultrafine oxygen-containing inorganic fiber bundles reinforced by aldehyde resin Download PDFInfo
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- CN103599664A CN103599664A CN201310522909.9A CN201310522909A CN103599664A CN 103599664 A CN103599664 A CN 103599664A CN 201310522909 A CN201310522909 A CN 201310522909A CN 103599664 A CN103599664 A CN 103599664A
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Abstract
The invention relates to a preparation method of ultrafine oxygen-containing inorganic fiber bundles reinforced by aldehyde resin. The preparation method is characterized by comprising the following specific steps: after mixing and stirring to dissolve a liquid composed of 5 to 10 parts by mass of a thermosetting resin, 85 to 94 parts by mass of a solvent and 1 to 5 parts by mass of a complaisant agent at the room temperature, immersing superfine inorganic heat-resistant fiber bundles into the liquid for soaking, (10 to 30 seconds) then blowing the surface of the fiber bundles with 100 kPa compressed air, removing the redundant adhesive liquid, at the room temperature of 20 to 30 DEG C, naturally drying for 5 to 8 h, and thus completing curing and reinforcement treatment. Strength requirements of fibers during a carrier preparation process are met, fracture of wires is prevented, the tensile strength is allowed to be slightly increased, at the same time, the flexural and bending resistance performance indexes are increased by 2 to 4 times or more, and the fibers are employed to be used for preparing a particle processed carrier material. The method has the characteristics of ingenious idea, simple process, low cost, easy implementation and the like.
Description
Technical field
The present invention relates to the ultra-fine preparation method containing oxygen inorfil bundle of a kind of air aldehyde resin strengthening, for the preparation of DOC, POC, the carrier material of the particle preprocessor of CSF and similar DPF, also can be applied to the carrier material of SCR preprocessor.
Background technology
For automobile industry, energy-conserving and environment-protective are common issue that Present Global faces; Although the fuel economy of diesel engine is higher than gasoline engine,, because the discharge capacity of the particulate of diesel engine is 20 ~ 70 times of gasoline engine, therefore, the application of diesel engine is subject to certain restrictions;
In the pollutant of automobile, mainly comprise NOX and PM; All discharge quantity of particulate matter in atmosphere, the discharge capacity of motor vehicle occupies the 3rd of total amount, approaches every year 600000 tons;
In motor vehicle granular material discharged, be mainly distributed in the scope that particle size is 2.5 ~ 10 μ m, referred to as PM2.5 ~ PM10, this class particle to greatly, becomes the emphasis of current motor vehicle exhaust emission purified treatment to the mankind's harm; Beijing state 5 standards that come into effect recently, the discharge quantity of stricter restriction PM2.5 ~ PM10 not only, and stipulated the restriction to all particle number PN; Visible, the following post-processing technology for the treatment of PM2.5 ~ PM10 and equipment are more general;
At present, for the treatment of PM2.5 ~ PM10, be all to adopt DPF preprocessor both at home and abroad, this technology is monopolized by CORNING HeNGK company, and expensive price is the factor that becomes restriction and promote the use of at home, followingly also can face the problem of more market and use;
DPF is a kind of diesel particulates preprocessor of making filter core with foamed ceramics, has not through hole that filter area is increased, the micropore that has distributed on wall and differed in size in filter core, micropore diameter 8 ~ 16 μ m, porosity 40% ~ 50%, channel width 2 ~ 3mm, wall thickness 0.30 ~ 0.45mm; Fresh DPF exemplar can reach 95% to PM treatment effect; After DPF particulate accumulation in use is a certain amount of, rear spray diesel combustion heating, burns the particulate being deposited on filter core, realizes and regenerating, and theoretically, DPF can be permanently effective;
The mechanism of particle filtering is the combination that compresses effect, fuel factor and electrical effect; Utilize carrier to the holding back and colliding of particle, and the diffusion of particle self and the acting in conjunction of gravitational settling realize purifying and remove; Wherein, compress effect and refer to the slightly subflexuose micropore on matrix, be equivalent to the effect of filter cake and filter bed, when PM particle is forced through these micropores, is dammed and collect, reach filter effect,, form certain thickness filter bed most critical here; Fuel factor refers to and can be understood as isochoric heat effect, and when the particulate of a nanoparticle size is under higher temperature conditions, thermal vibration frequency is accelerated, and the track of Brownian movement is more tortuous, thereby, increased the possibility being trapped; And electrical effect refers in motion that the friction between thing and between particle and wall makes it surface with electric charge, even if may having passed through macropore above, it also likely by means of electrostatic interaction, by the next one, is slightly held back and elimination in large-sized hole;
How to select new material and technique, the macrostructure of the design filter of science and microstructure are important problems;
To the basic demand of particulate filter, be to possess compared with filtration efficiency and lower exhaust resistance; The performance of particulate filter is affected by the many factors such as filter structure parameter and flow parameter, and filter efficiency and exhaust resistance often exist again the trade-off relation of conflicting and mutual restriction; In particular filter structure parameter, particulate filter length, port number, channel width and wall thickness have determined length and the area of section of filter, and they not only can have influence on the overall performance of particulate filter; Increase particulate filter length and area of section and can effectively improve the filter efficiency of particulate filter and reduce gas-flow resistance, but be subject to the restriction of the installing space of vehicle; The maximum airflow resistance of the particulate filter of standard code vehicle generally will be controlled at below 10kPa, and in addition, particulate filter also must meet the features such as mechanical strength, thermal stress impact and manufacturing process are easy; The carrier new material that must rely on of above-mentioned characteristic is realized;
The patent No. is the diesel motor exhaust carbon soot particles catcher/filter patent of CN201020287676.0, in drum housing, to be provided with the stainless (steel) wire of tight winding, on described stainless (steel) wire, be provided with backfin and belling, still, the perforation duct possessing is unfavorable for the trapping of molecule; The patent No. is the tail gas emission filter patent of CN200920053958.1, it is a concentric tube outsourcing glass, tail gas enters from the side, from center afterbody, overflow, what play a role in filtering is glass, and this structure exists the problem of air-flow skewness, in addition, the cycle pulse exhaust airstream of automobile engine will dispel glass to tear, and the life-span is short, lose efficacy very fast; The patent No. is the diesel particulate filter patent of CN200480026612.2, is the DPF ceramic monolith of the wall-flow type of traditional structure; The patent No. is the diesel particulate filter patent of CN200410055292.5, is the DPF Carboround of the auxiliary wall-flow type of a kind of FBC of employing additive, and oxide and the metal palladium catalyst of the oxide that has comprised vanadium, tungsten finally become CDPF; The patent No. is the honeycomb particulate filters patent of CN01816995.3, be a kind of along flow to axle have different wall as cellular multi-unit structure, be specifically applicable to diesel particulate filter, but it is also applicable to the honeycomb of part stream.Honeycomb thermal capacity gradually changes from arrival end to the port of export; The patent No. is the exhaust gas particle filter of CN200810215253.5 and the process patent of manufacturing exhaust gas particle filter, is a kind of exhaust gas particle filter that adopts metallic foam support completely; The patent No. is the diesel engine soot particulates filter cartridge patent of CN201080028039.4, the diesel engine soot particulates filter that a kind of woven wire of the wall-flow type of many of arranging according to certain way is reeled and formed; The patent No. is the diesel exhaust gas purifying filter patent of CN03804171.5, that filling has the graininess ceramic porous article of tridimensional network and forms in filter container, the average grain diameter of described granular ceramic porous article is 4.0 ~ 20mm, described graininess ceramic porous article within it portion have a large amount of artificial pores that form and with adjacent pore logical intercommunicating pore connected with each other, described in some, pore is partly exposed to the surface of described porous body.
The technical scheme adopting for realization processing particulate matter is not unique, and therefore, the automobile-used particle filter that exploitation is different from DPF is a technology that has very much challenge;
For the PM2.5 ~ PM10 particle disposal standard-required that faces the future stricter, some traditional filtering materials, for example, woven wire and metal sintering felt cannot be competent at.
Summary of the invention
The object of the present invention is to provide a kind of ultra-fine preparation method containing oxygen inorfil bundle of air aldehyde resin strengthening, it adopts the mixing material of heat reactive resin and industrial solvent, to being applied to the ultra-fine inorganic heat resistance fiber of particulate filter, carry out immersion treatment, then solidify, meet the requirement of strength of fiber in preparing carrier process, prevent fracture of wire, tensile strength is improved slightly, but anti-crawl agentdefiection and fracture resistance index improve more than 2 ~ 4 times, the carrier material that adopts this fiber to process for the preparation of particle; Have thinking ingenious, technique is simple, with low cost, is easy to the features such as realization.
Technical scheme of the present invention is achieved in that a kind of ultra-fine preparation method containing oxygen inorfil bundle of air aldehyde resin strengthening, it is characterized in that concrete steps are as follows: by mass fraction by 5 ~ 10 parts of thermosetting resins, the liquid that the softener of the solvent of 85 ~ 94 parts and 1 ~ 5 part forms is after at room temperature mix and blend dissolves, ultra-fine inorganic heat resistance fiber bundle is immersed in liquid and soaked, 10 ~ 30 seconds time, then adopt the surface of the compressed air purging fibre bundle of 100Kpa, remove unnecessary binding agent liquid, under 20 ~ 30 ℃ of room temperatures, natural drying 5 ~ 8h, complete and solidify and intensive treatment.
Described ultra-fine inorganic heat resistance fiber bundle is basalt fibre bundle or the rope of diameter 0.1 ~ 2mm of preparing of the fiber of filament diameter 3 ~ 20 μ m.
Described thermosetting resin be phenolic resins as binding agent, solvent is industrial alcohol, softener is a kind of in ethylene glycol or glycerine.
Good effect of the present invention is ingenious anti-folding and the Bending property that has solved fibre bundle, solved and woven wire ' shuffling ' process in fracture of wire problem, prepared muddy silk netting, the carrier material that is suitable for particle disposal, meet more harsh automobile emissions standards requirement, be conducive to automobile industry and reduce discharging; There is very high practical value.
Accompanying drawing explanation
Fig. 1 is the pictorial diagram before the present invention strengthens.
Fig. 2 is the pictorial diagram after the present invention strengthens.
The specific embodiment
Below in conjunction with drawings and Examples, the invention will be further described; embodiment is for further illustrating feature of the present invention; be not equal to restriction the present invention, the change of carrying out according to the present invention for those skilled in the art, within all should being included in protection scope of the present invention.
embodiment 1
As shown in Figure 2, choose 5 parts of phenolic resins of industry, add 94 parts of industrial alcohol as solvent, add the glycerine of 1 part as submissive softener, stirring and dissolving, forms binding agent liquid; The basalt fiber rope that adopts the prepared diameter 1mm of the fiber of commercially available filament diameter 20 μ m, soaks this as binding agent, then, adopts the compressed air of 100Kpa to purge, and removes unnecessary binding agent; At room temperature approximately 25 ℃, place 5h, fibre bundle completes curing.
embodiment 2
7 parts of phenolic resins choosing industry, add 90 parts of industrial alcohol as solvent, add the glycerine of 3 parts as submissive softener, and stirring and dissolving forms binding agent liquid; The basalt fiber rope that adopts the prepared diameter 1mm of the fiber of commercially available filament diameter 20 μ m, soaks this as binding agent, then, adopts the compressed air of 100Kpa to purge, and removes unnecessary binding agent; At room temperature approximately 25 ℃, place 7h, fibre bundle completes curing.
embodiment 3
10 parts of phenolic resins choosing industry, add 85 parts of industrial alcohol as solvent, add the glycerine of 5 parts as submissive softener, and stirring and dissolving forms binding agent liquid; The basalt fiber rope that adopts the prepared diameter 1mm of the fiber of commercially available filament diameter 20 μ m, soaks this as binding agent, then, adopts the compressed air of 100Kpa to purge, and removes unnecessary binding agent; At room temperature approximately 25 ℃, place 8h, fibre bundle completes curing.
embodiment 4
As shown in Figure 1, the stainless steel tube that the diameter of getting a length 500mm is 20mm, erect at two ends, and fixing; Get the basalt fiber rope of diameter 1mm prepared by the fiber of the filament diameter 20 μ m that do not process through adhesive cures, length 1000mm, the counterweight of one section of fixing upper 100g, the other end is hand-held, ride on stainless steel tube, along stainless steel tube radially 90 degree directions pull/slide, even if counterweight naturally droops, and then along stainless steel tube 90, spend directions and pull/slide; Move in circles; For the basalt fiber rope of not processing through adhesive cures, 12 bouts are just found the obvious plucking of basalt fiber rope, and part fiber is disconnected; Upper and lower 26 bouts, basalt fiber rope thoroughly ruptures.
embodiment 5
Get the basalt fiber rope after processing in embodiment 1, repeat the test of embodiment 4,40 bouts, find fibre bundle plucking, and 70 bout fibre bundles are disconnected.
embodiment 6
Get the basalt fiber rope after processing in embodiment 2, repeat the test of embodiment 4,56 bouts, find fibre bundle plucking, and 82 bout fibre bundles are disconnected.
embodiment 7
Get the basalt fiber rope after processing in embodiment 3, repeat the test of embodiment 4,121 bouts, find fibre bundle plucking, and 178 bout fibre bundles are disconnected.
Embodiment 8
Adopt the phenolic resins of 10 parts, the industrial alcohol solvent of 94 parts, and the ethylene glycol of 5 parts, wherein phenolic resins and industrial alcohol solvent can well dissolve mutually, be made into binding agent liquid, soak basalt fibre bundle or rope, or fibre bundle is passed from the liquid of above-mentioned binding agent, then, adopt the surface of the compressed air purging fibre bundle of 100Kpa, remove unnecessary binding agent liquid, under 20 ~ 30 ℃ of room temperatures, natural drying 8h, make spirit solvent volatilization wherein clean, ethylene glycol is wherein residual, micro-phenol urea formaldehyde just can be bonding together between the filament of fiber and filament, complete and solidify and intensive treatment, in theory, the thoroughly curing of phenolic resins need to slough the moisture in molecule at the temperature higher than 120 ℃, therefore, if being cured, the above high temperature that adopts 120 ℃ is also suitable for this patent, but the present invention utilizes the part adhesive solidification effect of remaining phenolic resins after the volatilization of alcohol in the solution of phenolic resins can meet the performance requirement of the anti-folding anti-crawl agentdefiection in technical process, for energy-conservation, without high-temperature baking curing process, under room temperature, allow alcohol naturally volatilize, fibre bundle solidify and intensive treatment after, what pay close attention to is not that the raising of tensile strength is how many, but the improvement of the tolerance of anti-folding in braiding and anti-crawl agentdefiection,
In the present invention, phenolic resins used is cheap industrial products, and for example, the trade mark is C5 and C9, and hard block body under normal temperature, usually used as the composition of industrial binding agent, wide material sources; Adopt in the present invention the ethylene glycol of 10 parts of phenolic resins and 94 parts of spirit solvents and 5 parts, at room temperature stir to cause and dissolve each other, the dosage of phenolic resins is very few, and bond effect is poor, same, the dosage of phenolic resins is too much, wire harness is processed rear ' really up to the mark ', or ' having fragility ', has pliability deficiency and the problem of appearance broken string in braiding, in fact basalt fibre is all to sell with ' cord after sth. made by twisting ', and the binding agent liquid of overrich there is no need; The object that adopts industrial alcohol is that it and phenolic resins can fully dissolve, and can fully dilute the glue of the thickness of phenolic resins, the coating of being more convenient for, and nontoxic, price is low; In addition, the present invention has specially added again the ethylene glycol of 5 parts, this alcohols can be with ethanol and the abundant phased soln of phenolic resins, boiling point is respectively 197 ℃ and 291 ℃, non-volatile in solidification process, remain in the inside of fibre bundle, make handled fibre bundle keep certain compliance, so that meet the continuously quick bending cabling that hooks 180 degree in volume process, the addition of ethylene glycol is very few, cannot improve compliance, for example, but addition is too much,, add 10 parts, the bond effect of fibre bundle obviously reduces.
Claims (3)
1. the ultra-fine preparation method containing oxygen inorfil bundle of air aldehyde resin strengthening, it is characterized in that concrete steps are as follows: the liquid being comprised of the softener of 5 ~ 10 parts of thermosetting resins, the solvent of 85 ~ 94 parts and 1 ~ 5 part by mass fraction is after at room temperature mix and blend dissolves, ultra-fine inorganic heat resistance fiber bundle is immersed in liquid and soaked, 10 ~ 30 seconds time, then adopt the surface of the compressed air purging fibre bundle of 100Kpa, remove unnecessary binding agent liquid, under 20 ~ 30 ℃ of room temperatures, natural drying 5 ~ 8h, completes and solidifies and intensive treatment.
2. the method for the ultra-fine preparation containing oxygen inorfil bundle of air aldehyde resin according to claim 1 strengthening, is characterized in that described ultra-fine inorganic heat resistance fiber bundle is basalt fibre bundle or the rope of diameter 0.1 ~ 2mm of preparing of the fiber of filament diameter 3 ~ 20 μ m.
3. the method for the ultra-fine preparation containing oxygen inorfil bundle that air aldehyde resin according to claim 1 is strengthened, it is characterized in that described thermosetting resin is that phenolic resins is as binding agent, solvent is industrial alcohol, and softener is a kind of in ethylene glycol or glycerine.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310522909.9A CN103599664A (en) | 2013-10-30 | 2013-10-30 | Preparation method of ultrafine oxygen-containing inorganic fiber bundles reinforced by aldehyde resin |
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| CN201310522909.9A CN103599664A (en) | 2013-10-30 | 2013-10-30 | Preparation method of ultrafine oxygen-containing inorganic fiber bundles reinforced by aldehyde resin |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1531453A (en) * | 2001-02-27 | 2004-09-22 | ���˹���Ѷ��� | Improved resin impregnated filter media |
| CN102300614A (en) * | 2009-01-29 | 2011-12-28 | 尼纳盖斯纳有限公司 | Single-layer or multi-layer filter material and method for the production thereof |
| CN103100264A (en) * | 2013-02-06 | 2013-05-15 | 吕凯 | Battery and capacitor diaphragm filter material formed by wet nonwoven fabrics and preparation method of filter material |
| CN103160230A (en) * | 2013-03-01 | 2013-06-19 | 北京中铁润海科技有限公司 | Composite dipping glue used for preparing high temperature filter material and usage method |
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2013
- 2013-10-30 CN CN201310522909.9A patent/CN103599664A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1531453A (en) * | 2001-02-27 | 2004-09-22 | ���˹���Ѷ��� | Improved resin impregnated filter media |
| CN102300614A (en) * | 2009-01-29 | 2011-12-28 | 尼纳盖斯纳有限公司 | Single-layer or multi-layer filter material and method for the production thereof |
| CN103100264A (en) * | 2013-02-06 | 2013-05-15 | 吕凯 | Battery and capacitor diaphragm filter material formed by wet nonwoven fabrics and preparation method of filter material |
| CN103160230A (en) * | 2013-03-01 | 2013-06-19 | 北京中铁润海科技有限公司 | Composite dipping glue used for preparing high temperature filter material and usage method |
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Application publication date: 20140226 |