CN103160230B - Composite dipping glue used for preparing high temperature filter material and usage method - Google Patents
Composite dipping glue used for preparing high temperature filter material and usage method Download PDFInfo
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Abstract
The invention relates to a composite dipping glue used for preparing a high temperature filter material, which comprises the following components: phenolic resin, a catalyst, a flexibilizer, a cosolvent, an inorganic bonding agent, a coupling agent, a waterproof oil-proofing agent, an anti-grinding agent, a chelating agent, a carbonization agent, a flame retardant agent and a stabilizing agent. According to the invention, a normal temperature mixing stirring method is employed to prepare an aqueous dipping glue, the water-soluble performance of the prepared dipping glue is excellent, the dilution ratio enables wide adjustable degree, the adhesiveness is good, the impregnation is easy, no unfriendly component on environment such as heavy metal ions can be contained, the usage is convenient, the production process control is simple, the pollutant discharge capacity is low, and the cost is low. Compared with other resin-based dipping glue, the modification effect of the composite dipping glue on a filtering base material surface is obvious, The filter material prepared by the dipping glue has excellent high temperature resistance and aging resistance performances and good acid and alkali resistance and corrosivity resistance performances, the conservation rate of toughness under high temperature is high, and the waterproof and oil-proof performances are prominent. The dipping glue can treat various organic and inorganic fiber such as glass fiber, rock wool, basalt fiber, carbon fiber, stainless steel fiber, aramid fiber, polyphenylene sulfide (PPS), terylene and polypropylene.
Description
Technical field
The present invention relates to a kind of impregnated resin, especially a kind of compound impregnated resin and using method thereof preparing high-temperature filter material.
Background technology
The core of high temperature gas medium dust removal by filtration technology is high-temperature filter material, and filtrate is the critical material of sack cleaner, and its quality is directly connected to performance of precipitator, generally should meet the following conditions: rational in infrastructure, and dust catching rate is high; Stripping performance is good, and easy-to-clean ash is less scaling; Ventilation property is suitable for, and resistance is low; There is enough intensity and snappiness, good stability of the dimension, life-time service be indeformable, come unstuck, fiber fractionation, stripping; There is the performances such as good heatproof, resistance to chemical attack, resistance to oxidation, resistant to hydrolysis and wide adaptability; Raw material sources are extensive, stable and reliable for performance; Price is low, and the life-span is long.
At present, what the base-material of domestic high-temperature filter material generally adopted is glass fibre or aramid fiber, superfine stainless steel fibre Nomex.The application tool of resol in high-temperature filter material impregnated resin has great advantage.Its resistance to elevated temperatures is good, at high temperature can keep the globality of its structure and the stability of size preferably, which ensure that the fiberglass needled mat filtrate through phenolic surface modification can long-term operation in the environment of about 260 DEG C.It and multiple organic and consistency that is mineral filler are good.Design correct resol, wetting speed is fast especially, and after cross-linking, can provide required physical strength and wear resisting property for fiberglass needled mat, not easily aging, to meet mechanical mechanics property and the life requirement of filtrate.In addition, the characteristic such as low-smoke low-toxicity, resist chemical that the resol after being cross-linked possesses also makes it be especially suitable for use as the impregnated resin of glass high-temperature filter material.
But, simply by virtue of resol and various properties-correcting agent composite, surface treatment is carried out to fiberglass needled mat and remain far from being enough, we also need to consider the characteristic of glass fibre itself, filtrate storing state at normal temperatures, the various mal-condition that may suffer from hot environment and " after work " design, adjust the formula of impregnated resin targetedly to the different manner of cleaning up that it is taked.In the application of sack cleaner, often run into the occasion of process high-temperature flue gas, as the blast furnace gas in Cement industry kiln hood kiln exit gas, Iron And Steel Industry, coal fired boiler of power plant flue gas, flue gas of refuse burning etc.Along with the continuous quickening of process of industrialization, high-temperature flue gas is carried out high-effective dust-removing and become extremely urgent, meaning that is energy-saving and cost-reducing, protection of the environment is increasingly great.Therefore, the performance of high-temperature filter material is had higher requirement.Such as, the rigid structure of the inherent excellence of (1) resol is exactly a double-edged sword.No matter high-temperature filter material is in daily storage, high-temperature service or the process of pulse dust cleaning, all needs often to bear folding and double direction impulse, especially can life-span of serious curtailment glass fiber filter material at high filtration wind speed, pulse dust cleaning or when shaking violent.This just requires that high temperature filter material has excellent resistance to deflection, meaning also must by other approach for filtrate provides toughness while relying on the larger resol of fragility to provide physical strength, certainly, this also overcomes glass fiber filter material shortcoming in essence to a certain extent; (2) along with the demand that glass fiber filter material is long-term, stablize processing temperature improves constantly, the heat decomposition temperature and the heat resistant performance that improve resin is further needed.In addition the objectionable impurities suppressing phenolic resin at high temperature to discharge is needed to produce or control its burst size; (3) although the chemical stability of glass fiber filter material is all fine, can tolerate the corrosion of most of sour (except hydrofluoric acid), the middle strong basicity under the highly basic under room temperature and high temperature still can attack glass, needs to carry out alkali corrosion resistance process to glass; (4) same, slickness through the glass surface of phenolic resin modified front and back, moistureproofness are not good yet, be difficult to process high humidity, high-temperature flue gas that viscosity is larger, the in use easy fouling of dust is even partially formed small ash cake, filter bag air penetrability is reduced, pressurized increases, and long-term operation like this can destroy the reasonable microstructure of filtrate gradually, is also caused very large difficulty with rear deashing.Allow glass fiber filter material possesses excellent hydrophobic nature, oil repellency is also improve the important method that it is suitable for ability.
Summary of the invention
The technical issues that need to address of the present invention be to provide one can at 400 DEG C long-term operation, heat resistant excellent performance, acid-alkali-corrosive-resisting is good, and under high temperature, toughness conservation rate is high, and water and oil-resistant is exsertile for the preparation of the compound impregnated resin of high-temperature filter material and the using method of this impregnated resin.
For solving the problem, the technical solution used in the present invention is: a kind of compound impregnated resin preparing high-temperature filter material, it comprises following composition: resol, catalyzer, toughner, solubility promoter, inorganic adhesive, coupling agent, water and oil repellent agent, anti-wear agent, sequestrant, carbonized agent, press down flame agent, stablizer, wherein resol is primary binder.
The present invention is further: it comprises component A for joining glue and B component, and wherein component A comprises: the solubility promoter being less than the resol of 20 weight parts, being less than the water of 40 weight parts, being less than the toughner of 10 weight parts, being less than the stablizer of 10 weight parts, being less than 50 weight parts.B component comprises: the water of 30 ~ 85 weight parts, the catalyzer being less than 10 weight parts, the inorganic adhesive being less than 15 weight parts, the coupling agent being less than 5 weight parts, the sequestrant being less than 5 weight parts and carbonized agent, be less than pressing down flame agent, being less than the anti-wear agent of 10 weight parts, being less than the water and oil repellent agent of 10 weight parts of 5 weight parts.
Compound impregnated resin of the present invention is as follows for the preparation of the using method of high-temperature filter material:
(1) glue is joined:
A, B component glue and water are added in reactor in proportion, stirs;
(2) impregnation:
Poured into by the impregnated resin stirred in impregnation pond, fiber needled felt enters impregnation pond impregnation under the drive of roller, and the liquid level in impregnation pond automatically can supplement impregnated resin lower than during designated water level line, with ensure impregnation operation continue carry out;
(3) planeness process:
Under the hot pressing rolling and stretching two-way function of roller, make fiber needled felt surfacing, this effect runs through drying subsequently, thermoforming, overlay film, defeathering technique are omnidistance;
(4) dry, thermoforming:
First low temperature removes moisture residual in fiber needled felt, controls residual silkgum content by adjustment bake out temperature and time; Subsequently, dried by high-temperature hot and make impregnated resin curing molding, in this operation, impregnated resin is under composite catalyst system effect, utilizes the quick modification of this procedure technology condition realization to resol.
(5) overlay film, reinforcing:
The porous membrane that fiber needled felt surface coverage one deck is after shaping smooth, increase the slickness of filter material surface on the one hand, improve air penetrability and scale-inhibiting properties, improve waterproof and oilproof performance further on the one hand, between two-layer filtrate, additional one deck fibrous mesh cloth strengthens as structure.
(6) defeathering:
Dispose and affect the smooth fiber of filter material surface.
(7) cutting:
Pruned according to different demands, be sewn into filtrate miscellaneous.
Composite catalyst system in above-mentioned steps (4) refers to: the reactive behavior of being rolled into a ball by catalyzer increase resol phenolic hydroxyl group and its adjacency pair position place methoxy functional, impel impregnated resin can solidify as early as possible in drying and dewatering process, be attached to filter material surface greatly, change the solidification path of resol, improve the toughness after its solidification, not easily because stripping effect is run off, meanwhile, this catalyst system significantly reduces solidification value.
This impregnated resin is except process fiber needled felt, and it is also suitable for process rock wool, basalt fibre, carbon fiber, Stainless Steel Fibre, aramid fiber, polyphenylene sulfide (PPS), terylene, polypropylene.
The beneficial effect adopting technique scheme to produce is: the present invention take resol as primary binder, normal temperature mix and blend method is adopted to be prepared into water-based impregnated resin, impregnated resin prepared by the present invention is water-soluble fabulous, extension rate elasticity is wide in range, good, the easy impregnation of tack, not containing unfriendly compositions of environment such as heavy metal ion, easy to use, production process manipulates simply, pollutant discharge amount is low, with low cost.Compare with other resin base impregnated resin, the present invention is remarkable to filtering substrate surface modification effect, adopts the filter material heat resistant excellent performance that this impregnated resin is obtained, acid-alkali-corrosive-resisting is good, under high temperature, toughness conservation rate is high, and waterproof and oilproof performance is given prominence to, and its characteristic is as follows:
(1) good toughness: it tolerates bidirectional pulse number of times repeatedly and exceedes national standard;
(2) under the prerequisite ensureing toughness, there is good physical strength;
(3) breaking tenacity of warp-wise and broadwise, elongation at break, radial continuous rating elongation rate are all up to state standards;
(4) can at 400 DEG C long-term operation, its mass loss rate is minimum, and toughness conservation rate is higher;
(5) good hydrophobic and oil repellent effect: water droplet or oil droplet can remain rolling smoothly at filter material surface and do not absorbed, and water regain is less after 24h soaks;
(6) good dust peeling property, easy-to-clean ash, less scaling, ventilation property is good, and resistance is little.
embodiment
Below the present invention is described in further detail: the invention provides a kind of compound impregnated resin preparing high-temperature filter material, it comprises following composition: resol, catalyzer, toughner, solubility promoter, inorganic adhesive, coupling agent, water and oil repellent agent, anti-wear agent, sequestrant, carbonized agent, press down flame agent, stablizer, wherein resol is primary binder.
The present invention said components is deployed into component A further and B component carries out packing and transporting and configure, and wherein component A comprises: the solubility promoter being less than the resol of 20 weight parts, being less than the water of 40 weight parts, being less than the toughner of 10 weight parts, being less than the stablizer of 10 weight parts, being less than 50 weight parts.B component comprises: the water of 30 ~ 85 weight parts, the catalyzer being less than 10 weight parts, the inorganic adhesive being less than 15 weight parts, the coupling agent being less than 5 weight parts, the sequestrant being less than 5 weight parts and carbonized agent, be less than pressing down flame agent, being less than the anti-wear agent of 10 weight parts, being less than the water and oil repellent agent of 10 weight parts of 5 weight parts.
Each component principle of work in the present invention:
Composite catalyst system:
The catalyzer of larger dose can not only increase the reactive behavior of the functional group such as resol phenolic hydroxyl group and its adjacency pair position place, methoxyl group, impel impregnated resin can solidify as early as possible in drying and dewatering process, be attached to filter material surface greatly, not easily because stripping effect is run off, the more important thing is the solidification path changing resol, improve the toughness after its solidification, simultaneously, greatly reduce solidification value, reduce energy consumption and tooling cost.
Toughner:
Resol has stronger sticking power to filamentary material, mixes soft segment polymkeric substance and makes it to be uniformly dispersed, can improve the resistance to deflection of glass fiber filter material in resol.
Inorganic adhesive:
Alkalimetal silicate, phosphoric acid salt, silico-aluminate etc. are easy to dispersion, shaping, once have very strong bonding force after solidification, and high temperature resistant, anti-vibration, antistripping, high temperature resistant airflow scouring, and there is good infrared absorbance and insulativity.
Coupling agent:
Silane coupling agent is a kind of excellent finishing agent for glass fibre, can improve physical strength and the ageing resistance of filtrate.In addition, it or a kind of adhesive accelerant of excellence, improve epoxy, modified phenolic adhesive dispersed the binding property improved glass fibre.
Water and oil repellent agent, anti-wear agent:
Macromolecule emulsion and organosilicon, organic fluorine waterproof agent are easy to disperse, bonding force is strong, is used with, can improve the slickness on glass fiber filter material surface, not easily dust stratification, play good hydrophobic and oil repellent effect, even if the moist dust under high temperature is also difficult to adhere to, thus make it have excellent dust peeling property energy, easy-to-clean ash, less scaling, it is especially convenient to use, and greatly improves the dust catching diversity of glass fiber filter material.In addition, kindliness and the wear resistance of filtrate can also be improved.
Sequestrant, carbonized agent:
Organic acid salt and inorganic acid salt are also used, on the one hand, organic acid salt possesses better chemical stability, not facile hydrolysis, energy higher temperature resistant, there is excellent sequestering power to many metal ions as calcium, magnesium, copper, zinc, greatly improve dispersiveness and the cementability of some ceramic phase metal oxides, become the high temperature resistant aggregate of glass fiber filter material; On the one hand, inorganic acid salt often has stronger fire retardation, the effusion that it at high temperature can form vitreous state inorganic expansive coating, promote into charcoal, hinders volatile fuel, especially when temperature is higher than 300 DEG C, inorganic acid salt decomposes, discharge crystal water, play the effect of oxygen in foaming, heat absorption, cooling and diluent air.Meanwhile, the by product decomposing generation is attached to glass fiber filter material and forms tectum on the surface, and inflammable gas can be suppressed to produce, and also can stop oxidation and pyrolysis.
Press down flame agent:
Phosphoric acid salt, poly-phosphate, borate have very strong fire retardation, the effusion that they at high temperature can form vitreous state inorganic expansive coating, promote into charcoal, hinder volatile fuel, also discharge crystal water by thermolysis, play the effect of oxygen in foaming, heat absorption, cooling and diluent air.
Stablizer:
The strong polarity of phenolic hydroxyl group and oxidizable be absorb water after causing phenolic resin curing, major cause that physical strength declines, therefore, eliminate or block it as much as possible and the superiority of resol can be allowed better to be embodied.
After common phenolic resin curing, matter is hard and crisp, and again owing to having more oxidizable phenolic hydroxyl group and methylene radical in molecular structure, high thermal resistance is poor.Just be obviously oxidized when use temperature is more than 200 DEG C, start aging, 340 ~ 360 DEG C time, enter the thermolysis stage, resin generation carbonization reaction, discharges CH
4, H
2, CO, CO
2deng small molecules, after molecule effusion, resin inside forms many holes not of uniform size.
Glass fiber high-temperature filtrate through the modification of phenolic resin dipping is difficult to have both enough underlying strengths and excellent snappiness, the working temperature upper limit is no more than 260 DEG C, at high temperature seriously aging, easily hardeningly to become fragile, mechanical property declines to a great extent, waterproof and oilproof function significantly weakens, and alkaline matter is corrosion failure filter structure especially easily.
Based on resin base caking agent platform, this impregnated resin forms the complete coating of one deck to carry out surface modification in fiberglass surfacing in production process, the resistance to elevated temperatures of its excellence after coating curing, bend resistance performance, hydrophobic and oil repellent performance can make up the performance deficiency of glass filtrate, such as, the working temperature of filtrate is increased to 300 ~ 400 DEG C, close to the high temperature resistant limit of glass fibre, coating heat resistant performance is given prominence to, can ensure filtrate at high temperature long-term operation still keep high tenacity and high water and oil-resistant, improve the alkali corrosion resistance ability of filtrate.The various aspects of performance of the high-temperature filter material using impregnated resin process glass fibre of the present invention to obtain all is greatly improved, and the effect that in formula, composite catalyst system plays is particularly important.On the one hand, it can significantly improve the reactive behavior of common phenolic aldehyde phenolic hydroxyl group, methoxyl group and its adjacency pair Wei Chudeng functional group, rapid catalysis they with formula in active group be reacted into key, make it to be carried out to the various heat resist modifications such as amine, phosphorus, boron, molybdenum, zirconium all more easily to complete, can also hydrophilic and heat labile free phenolic hydroxyl group in minimizing system further by activating reaction between each functional group, thus the high thermal resistance further increased after impregnated resin coating curing and water and oil-resistant, strengthen the bonding force with high temperature filtration base material, ensure filtrate toughness;
On the other hand, the heat resist modification that composite catalyst system can shorten resol is greatly time-consuming, the more important thing is, its remarkable catalytic modification effect can match with the processing condition of producing high-temperature filter material each stage, utilize the existing technique of producing high-temperature filter material to greatest extent, synchronous realization is carried out heat resist modification to resol and is carried out surface modification to high temperature filtration base material, makes the production of high-temperature filter material have both high-quality and high-level efficiency.
Review the method for conventional synthesis heat resist modification resol, invariably need to carry out in special reactor, complex steps, by product is many, time consumption and energy consumption, with high costs, and synthetic product product are verified the temperature of reaction in each stage, time, presser sensor, cause quality product discreteness large, production technique is difficult to control, Pollutant Treatment workload strengthens, and cost rises sharply.And it is water-soluble fabulous with the impregnated resin of formula preparation of the present invention, extension rate elasticity is wide in range, good, the easy impregnation of tack, not containing unfriendly compositions of environment such as heavy metal ion, easy to use, production process manipulates simply, pollutant discharge amount is low, with low cost.Compare with other resin base impregnated resin, the present invention is remarkable to filtering substrate surface modification effect, obtained filter material heat resistant excellent performance, and acid-alkali-corrosive-resisting is good, and under high temperature, toughness conservation rate is high, and waterproof and oilproof performance is given prominence to.
Compound impregnated resin of the present invention is as follows for the preparation of the using method of high-temperature filter material:
(1) glue is joined:
A, B component glue and water are added in reactor in proportion, stirs;
(2) impregnation:
Poured into by the impregnated resin stirred in impregnation pond, fiber needled felt enters impregnation pond impregnation under the drive of roller, and the liquid level in impregnation pond automatically can supplement impregnated resin lower than during designated water level line, with ensure impregnation operation continue carry out;
(3) planeness process:
Under the hot pressing rolling and stretching two-way function of roller, make fiber needled felt surfacing, this effect runs through drying subsequently, thermoforming, overlay film, defeathering technique are omnidistance;
(4) dry, thermoforming:
First low temperature removes moisture residual in fiber needled felt, controls residual silkgum content by adjustment bake out temperature and time; Subsequently, dried by high-temperature hot and make impregnated resin curing molding, in this operation, impregnated resin is under composite catalyst system effect, utilizes the quick modification of this procedure technology condition realization to resol.
(5) overlay film, reinforcing:
The porous membrane that fiber needled felt surface coverage one deck is after shaping smooth, increase the slickness of filter material surface on the one hand, improve air penetrability and scale-inhibiting properties, improve waterproof and oilproof performance further on the one hand, if desired, can strengthen as structure by additional one deck fibrous mesh cloth between two-layer filtrate.
(6) defeathering:
Dispose and affect the smooth fiber of filter material surface.
(7) cutting:
Pruned according to different demands, be sewn into filtrate miscellaneous.
Below the embodiment of all kinds of formula of the present invention, for determining optimum formula of the present invention:
Embodiment 1
Preparation 100kg is for the treatment of the diluent of high-temperature filter material: add component A 2kg (part by weight is 2%), water 94kg (part by weight is 94%), B component 4kg (part by weight is 4%) successively.Wherein component A comprises resol, the water of 36 weight parts, the solubility promoter of 49 weight parts of 15 weight parts; B component comprise the water of 83 weight parts, the catalyzer of 9 weight parts, the sequestrant of 4 weight parts and carbonized agent, 4 weight parts press down flame agent.
Using method is:
1 joins glue:
A, B component glue and water are added in reactor in proportion, stirs;
2 impregnations:
Poured into by the impregnated resin stirred in impregnation pond, fiber needled felt enters impregnation pond impregnation under the drive of roller, and the liquid level in impregnation pond automatically can supplement impregnated resin lower than during designated water level line, with ensure impregnation operation continue carry out;
3 planeness process:
Under the hot pressing rolling and stretching two-way function of roller, make fiber needled felt surfacing, this effect runs through drying subsequently, thermoforming, overlay film, defeathering technique are omnidistance;
4 dry, thermoformings:
First low temperature removes moisture residual in fiber needled felt, controls residual silkgum content by adjustment bake out temperature and time; Subsequently, dried by high-temperature hot and make impregnated resin curing molding, in this operation, impregnated resin is under composite catalyst system effect, utilizes the quick modification of this procedure technology condition realization to resol.
5 overlay films, reinforcing:
The porous membrane that fiber needled felt surface coverage one deck is after shaping smooth, increase the slickness of filter material surface on the one hand, improve air penetrability and scale-inhibiting properties, improve waterproof and oilproof performance further on the one hand, if desired, can strengthen as structure by additional one deck fibrous mesh cloth between two-layer filtrate.
6 defeatherings:
Dispose and affect the smooth fiber of filter material surface.
7 cuttings:
Pruned according to different demands, be sewn into filtrate miscellaneous.
The intensity of the high-temperature filter material that the present embodiment obtains is better, and bend resistance number of times is lower than national standard, and the globule easily leaves washmarking at filter material surface and even absorbed, and soaking the mean water absorption amount after 24 hours is 3.4kg/m
2, through 250 DEG C of high temperature ripenings after 8 hours, the mean water absorption amount of soaking for 24 hours is 3.7kg/m
2, treatment solution leaves standstill and separates out a large amount of resin after 24 hours, and the stability after not having the treatment solution of stablizer to dilute as seen is very poor.
Embodiment 2:
Preparation 100kg is for the treatment of the diluent of high-temperature filter material: add component A 2kg (part by weight is 2%), water 94kg (part by weight is 94%), B component 4kg (part by weight is 4%) successively.Wherein component A comprises resol, the water of 35 weight parts, the toughner of 8 weight parts, the solubility promoter of 42 weight parts of 15 weight parts; B component comprise the water of 49 weight parts, the catalyzer of 9 weight parts, the inorganic adhesive of 13 weight parts, the coupling agent of 4 weight parts, the sequestrant of 4 weight parts and carbonized agent, 4 weight parts press down flame agent, the anti-wear agent of 8 weight parts, the water and oil repellent agent of 9 weight parts.
Using method is with embodiment 1.
The present embodiment increases toughner, inorganic adhesive, coupling agent anti-wear agent, water and oil repellent agent on embodiment basis, the intensity of obtained high-temperature filter material is better, bend resistance number of times exceedes national standard, the globule can keep smooth at filter material surface and roll, remain without washmarking, soaking the mean water absorption amount after 24 hours is 0.3kg/m
2, through 250 DEG C of high temperature ripenings after 8 hours, the mean water absorption amount of soaking for 24 hours is 0.5kg/m
2, leave standstill and can separate out a large amount of resin after 24 hours from diluent.Visible do not have the treatment solution of stablizer dilute after stability still very poor.
Embodiment 3:
Preparation 100kg is for the treatment of the diluent of high-temperature filter material: add component A 2kg (part by weight is 2%), water 94kg (part by weight is 94%), B component 4kg (part by weight is 4%) successively.Wherein component A comprises resol, the water of 35 weight parts, the toughner of 8 weight parts, the stablizer of 5 weight parts, the solubility promoter of 37 weight parts of 15 weight parts; B component comprise the water of 49 weight parts, the catalyzer of 9 weight parts, the inorganic adhesive of 13 weight parts, the coupling agent of 4 weight parts, the sequestrant of 4 weight parts and carbonized agent, 4 weight parts press down flame agent, the anti-wear agent of 8 weight parts, the water and oil repellent agent of 9 weight parts.
Using method is with embodiment 1.
The present embodiment adds stablizer on the basis of embodiment 2, and the intensity of obtained high-temperature filter material is better, and bend resistance number of times exceedes national standard, and the globule can keep smooth at filter material surface and roll, and remain without washmarking, soaking the mean water absorption amount after 24 hours is 0.3kg/m
2, through 250 DEG C of high temperature ripenings after 8 hours, the mean water absorption amount of soaking for 24 hours is 0.5kg/m
2, diluent Absorbable organic halogens is separated out without resin for 24 hours, and visible stablizer Be very effective, meets manufacturing technique requirent.
Below performance synopsis of the present invention:
Performance synopsis
This impregnated resin is except process glass fibre, and it is also suitable for the various organic and inorganic fibers such as process rock wool, basalt fibre, carbon fiber, Stainless Steel Fibre, aramid fiber, polyphenylene sulfide (PPS), terylene, polypropylene.
The filtrate using impregnated resin of the present invention to prepare has:
(1) good toughness: it tolerates bidirectional pulse number of times repeatedly and exceedes national standard;
(2) under the prerequisite ensureing toughness, there is good physical strength;
(3) breaking tenacity of warp-wise and broadwise, elongation at break, radial continuous rating elongation rate are all up to state standards;
(4) can at 400 DEG C long-term operation, its mass loss rate is minimum, and toughness conservation rate is higher;
(5) good hydrophobic and oil repellent effect: water droplet or oil droplet can remain rolling smoothly at filter material surface and do not absorbed, and water regain is less after 24h soaks;
(6) good dust peeling property, easy-to-clean ash, less scaling, ventilation property is good, and resistance is little.
Claims (3)
1. prepare a using method for the compound impregnated resin of high-temperature filter material, as follows:
(1) glue is joined:
By A, B component glue and water add in reactor in proportion, stir, described component A comprises: the resol being less than 20 weight parts, be less than the water of 40 weight parts, be less than the toughner of 10 weight parts, be less than the stablizer of 10 weight parts, be less than the solubility promoter of 50 weight parts, described B component comprises: the water of 30 ~ 85 weight parts, be less than the catalyzer of 10 weight parts, be less than the inorganic adhesive of 15 weight parts, be less than the coupling agent of 5 weight parts, be less than sequestrant and the carbonized agent of 5 weight parts, what be less than 5 weight parts presses down flame agent, be less than the anti-wear agent of 10 weight parts, be less than the water and oil repellent agent of 10 weight parts,
(2) impregnation:
Poured into by the impregnated resin stirred in impregnation pond, fiber needled felt enters impregnation pond impregnation under the drive of roller, and the liquid level in impregnation pond automatically can supplement impregnated resin lower than during designated water level line, with ensure impregnation operation continue carry out;
(3) planeness process:
Under the hot pressing rolling and stretching two-way function of roller, make fiber needled felt surfacing, this effect runs through drying subsequently, thermoforming, overlay film, defeathering technique are omnidistance;
(4) dry, thermoforming:
First low temperature removes moisture residual in fiber needled felt, controls residual silkgum content by adjustment bake out temperature and time; Subsequently, dried by high-temperature hot and make impregnated resin curing molding, in this operation, impregnated resin is under composite catalyst system effect, utilizes the quick modification of this procedure technology condition realization to resol;
(5) overlay film, reinforcing:
The porous membrane that fiber needled felt surface coverage one deck is after shaping smooth, increase the slickness of filter material surface on the one hand, improve air penetrability and scale-inhibiting properties, improve waterproof and oilproof performance further on the one hand, between two-layer filtrate, additional one deck fibrous mesh cloth strengthens as structure;
(6) defeathering:
Dispose and affect the smooth fiber of filter material surface;
(7) cutting:
Pruned according to different demands, be sewn into filtrate miscellaneous.
2. a kind of using method preparing the compound impregnated resin of high-temperature filter material according to claim 1, composite catalyst system in step (4) refers to: the reactive behavior of being rolled into a ball by catalyzer increase resol phenolic hydroxyl group and its adjacency pair position place methoxy functional, impel impregnated resin can solidify as early as possible in drying and dewatering process, be attached to filter material surface greatly, change the solidification path of resol, improve the toughness after its solidification, not easily because stripping effect is run off, meanwhile, this catalyst system significantly reduces solidification value.
3. a kind of using method preparing the compound impregnated resin of high-temperature filter material according to claim 1, this impregnated resin is except process fiber needled felt, and it is also suitable for process rock wool, basalt fibre, carbon fiber, Stainless Steel Fibre, aramid fiber, polyphenylene sulfide (PPS), terylene, polypropylene.
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| CN103599665B (en) * | 2013-10-30 | 2015-04-22 | 中国第一汽车股份有限公司 | Preparation method of hydrocarbon resin reinforced ultrafine carbon fiber bundles |
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