CN103603198A

CN103603198A - Preparation method of hydrocarbon resin reinforced ultrafine oxygen-containing inorganic fiber bundles

Info

Publication number: CN103603198A
Application number: CN201310523409.7A
Authority: CN
Inventors: 张克金; 崔龙; 王金兴; 韩金磊; 许德超; 安宇鹏; 郑晓旭
Original assignee: FAW Group Corp
Current assignee: FAW Group Corp
Priority date: 2013-10-30
Filing date: 2013-10-30
Publication date: 2014-02-26
Anticipated expiration: 2033-10-30
Also published as: CN103603198B

Abstract

The invention relates to a preparation method of hydrocarbon resin reinforced ultrafine oxygen-containing inorganic fiber bundles. The preparation method is characterized by comprising the following specific steps: adopting 5 to 10 parts by mass of petroleum resin, 75 to 85 parts by mass of a solvent and 10 to 15 parts by mass of a complaisant agent to form a liquid, employing the mixed liquid of the heat-curing resin and the industrial solvent, carrying out soaking treatment of ultrafine inorganic heat-resistant fibers which can be applied to particle filters, and then curing. Strength requirements of the 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; and the method has the characteristics of ingenious idea, simple process, low cost, easy implementation and the like.

Description

The ultra-fine preparation method containing oxygen inorfil bundle of hydrocarbon resins strengthening

Technical field

The present invention relates to the ultra-fine preparation method containing oxygen inorfil bundle of a kind of hydrocarbon resins 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 technique 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 present invention adopts a kind of ultra-fine preparation method containing oxygen inorfil bundle of hydrocarbon resins strengthening, it is ultimate attainment that it compresses effect, fuel factor and three kinds of effect performances of electrical effect, the new material of preparing particle processor carrier, after the catalyst of coating oxidized form, maximizes the removal effect of PM; It improves more than 2 ~ 4 times anti-crawl agentdefiection and fracture resistance index, the carrier material that adopts this fiber to process for the preparation of particle; It is ingenious that the method has thinking, and 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 hydrocarbon resins strengthening, it is characterized in that concrete steps are as follows: by ratio of quality and the number of copies by 5 ~ 10 parts of Petropols, the liquid that the softener of the solvent of 75 ~ 85 parts and 10 ~ 15 parts forms, after mix and blend, dissolve completely, ultra-fine inorganic heat resistance fiber bundle is immersed in liquid and soaked, adopt the compressed air of 100Kpa to purge, then through under 20 ~ 30 ℃ of room temperatures, then 6 ~ 10h of process solidifies processing.

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.

The resin that adopts is industrial C5 or C9 Petropols, and solvent is benzinum, and softener is industrial-35# diesel oil.

Good effect of the present invention is 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 schematic diagram before the present invention strengthens.

Fig. 2 is the schematic diagram after the present invention strengthens.

The specific embodiment

Below by drawings and Examples, the present invention is 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 C5 Petropols of industry, add 85 parts of industrial benzinums as solvent, and 10 parts-35# diesel oil, stirring and dissolving, forms binding agent liquid; The basalt fiber rope that adopts the prepared diameter 1mm of the fiber of 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 6h, complete the curing processing of fibre bundle.

embodiment 2

The C5 Petropols of 8 parts of choosing industry, add 80 parts of industrial benzinums as solvent, and 12 parts-35# diesel oil, stirring and dissolving, forms binding agent liquid; The basalt fiber rope that adopts the prepared diameter 1mm of the fiber of 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, complete the curing processing of fibre bundle.

embodiment 3

The C9 Petropols of 10 parts of choosing industry, add 75 parts of industrial benzinums as solvent, and 15 parts-35# diesel oil, stirring and dissolving, forms binding agent liquid; The basalt fiber rope that adopts the prepared diameter 1mm of the fiber of 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 10h, complete the curing processing of fibre bundle.

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 4,33 bouts, find fibre bundle plucking, and 61 bout fibre bundles are disconnected.

embodiment 6

Get the basalt fiber rope after processing in embodiment 2, repeat the test of embodiment 4,40 bouts, find fibre bundle plucking, and 67 bout fibre bundles are disconnected.

embodiment 7

Get the basalt fiber rope after processing in embodiment 3, repeat the test of embodiment 4,111 bouts, find fibre bundle plucking, and 154 bout fibre bundles are disconnected.

Claims

1. the ultra-fine preparation method containing oxygen inorfil bundle of hydrocarbon resins strengthening, it is characterized in that concrete steps are as follows: by ratio of quality and the number of copies by 5 ~ 10 parts of Petropols, the liquid that the softener of the solvent of 75 ~ 85 parts and 10 ~ 15 parts forms, after mix and blend, dissolve completely, ultra-fine inorganic heat resistance fiber bundle is immersed in liquid and soaked, adopt the compressed air of 100Kpa to purge, then through under 20 ~ 30 ℃ of room temperatures, then 6 ~ 10h of process solidifies processing.

2. the method for the ultra-fine preparation containing oxygen inorfil bundle of hydrocarbon resins 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 of hydrocarbon resins strengthening according to claim 1, is characterized in that adopted resin is industrial C5 or C9 Petropols, and solvent is benzinum, and softener is industrial-35# diesel oil.