CN102151435B - Glass fiber filter material and preparation method thereof - Google Patents
Glass fiber filter material and preparation method thereof Download PDFInfo
- Publication number
- CN102151435B CN102151435B CN 201110028398 CN201110028398A CN102151435B CN 102151435 B CN102151435 B CN 102151435B CN 201110028398 CN201110028398 CN 201110028398 CN 201110028398 A CN201110028398 A CN 201110028398A CN 102151435 B CN102151435 B CN 102151435B
- Authority
- CN
- China
- Prior art keywords
- filter material
- glass fiber
- agent
- fiber filter
- foam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Filtering Materials (AREA)
- Nonwoven Fabrics (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention discloses a glass fiber filter material and a preparation method thereof. The filter material comprises a base fabric, wherein the upper surface and the lower surface of the base fabric are respectively provided with a non-woven layer, and at least one of the non-woven layers is internally and externally provided with a foam coating layer respectively. The preparation method of the glass fiber filter material comprises the following steps of: manufacturing the glass fiber filter material, preparing finishing agent, generating foam, coating, and drying. The glass fiber filter material is subject to foaming layer arrangement, and the concentration of the finishing agent is increased, so that the finishing agent is distributed in the filter material more evenly, the migration phenomenon is reduced, and a mass of water resource, electric energy and heat energy are saved; after the glass fiber filter material is finished, and the gluing quantity of the filter material is decreased to 7-15% from 12-25% during finishing in a leaching way, so that the glass fiber filter material is even in distribution of the gluing quantity, good in flexibility, stable in quality, chemical corrosion-resistant, good in water resistance and oil resistance, easy to dedust, easy for industrial production, free of the existing water and energy-wasting step of finishing in a padding way, good in folding endurance, and long in service life at about 15 months.
Description
Technical field
Involved in the present invention is the glass filtering material aftertreatment technology in a kind of high temperature fume dust removal field, a kind of glass fiber filter material and preparation method thereof specifically.
Background technology
Not only temperature is high for the flue dust that steel and iron industry, metallurgical industry and cement industry produce, concentration is large, and composition is very complicated, the severe contamination air ambient.Along with rapid economic development and people's environmental consciousness constantly strengthen, country in flue dust heavily contaminated field, has formulated strict discharge standard especially to the environmental issue pay attention to day by day, and the soot dust granule emission request of its a lot of industries is lower than 50mg/m
3
Glass fibre is high temperature resistant owing to having, high-tenacity, excellent dimensional stability and good acid-alkali-corrosive-resisting, more and more is subject to the favor of environmental protection industry (epi).Glass fiber filter material is can be under 260 ℃ of high temperature steady in a long-term to be used, and more than brute force often can reach 2000N, dimensional stability was greater than 99%, and resistance to acids and bases is good, and its filter bag of making is widely used in the gas cleaning at high temperature such as steel industry field.But glass fibre is crisp, and folding quality is poor, and the glass filter bag anti-wear performance of making is relatively poor, frangible pouch and can't using, and average life span is about 1 year, far below 3 years of chemical fibre filter bag.
In order to improve the wearability of glass fiber filter material, improve the service life of filter bag, most of producers also carry out post processing to glass fiber filter material except selecting superfine glass fiber as processing raw material.Each company in the market mostly adopts " dipping-pressure rolling-preliminary drying-bake " mode to carry out rear arrangement to filter material surface.Patent CN 201578934U has introduced a kind of for the woven coating filter felt of glass varicosity, and it adopts the Collator Mode of conventional face coat, and the polytetrafluoroethylene film coating is carried out on the levels surface of glass fiber weaving cloth; Patent CN 101564620A has announced a kind of glass fiber filter material for the ceramics filtrating smoke dust, it is to adopt the components such as ptfe emulsion, polyacrylate, waterproofing agent, employing is soaked-is rolled mode glass fiber filter material is carried out post processing, brings up to service life more than 10 months; Patent CN 2825066Y has addressed the glass fiber filter material that a kind of overlay film and post processing combine, it specifically is coated with the expanding microporous polytetrafluoroethylene (PTFE) film of one deck on glass filter cloth surface, and be provided with one deck thermostable fluorine polymers post processing layer between glass fiber filter cloth and polytetrafluoroethylene film, employing is padded method and is applied fluoropolymer post processing layer, its efficiency of dust collection can reach more than 99%, can extend 2-3 service life doubly.
Mostly adopt padding finishing in the existing post-processing technology of glass fiber filter material, the gluing rate accounts for the 12-25% of filtrate cloth grammes per square metre, this Collator Mode is not only wasted great lot of water resources, drying energy and electric energy aborning, require baking oven length longer, speed of production is slower, yields poorly, and the migration of the active ingredients such as polytetrafluoroethylene (PTFE) can occur, cause the filtrate gluing irregular, thereby cause the separation strength of filtrate irregular; The active ingredient concentration such as polytetrafluoroethylene (PTFE) in existing post processing formula are lower, are unfavorable for evenly being coated on glass fibre; Existing glass fiber filter material is after post processing, and filtrate is more stiffening, and softness is very poor, and folding resistance is very poor, directly affects the final service life of filtrate; Though adopt the mode of polytetrafluoroethylene film overlay film can extend glass fiber filter material service life, cost is too high, is unfavorable for marketing.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the first purpose of the present invention is to provide a kind of flexibility good, steady quality, chemical resistance, the glass fiber filter material that the water and oil repellant performance is good.
The second purpose of the present invention be to provide a kind of can save great lot of water resources, significantly reduce energy consumption, reduce the preparation method that spread is irregular, be conducive to speed the speed of a motor vehicle, improve the glass fiber filter material of output.
Technical scheme: in order to solve above-mentioned the first purpose, the technical solution adopted in the present invention is: a kind of glass fiber filter material, comprise base cloth, and be respectively equipped with nonwoven layers at upper surface and the lower surface of base cloth, at the inside and outside foam coating that is provided with of at least one nonwoven layers.
In order to solve above-mentioned the second purpose, the technical solution adopted in the present invention is: a kind of preparation method of glass fiber filter material, the method comprises the steps:
1) making of glass fiber filter material: select ultra-fine fibre glass as the raw material of preparation glass fiber filter material, make respectively nonwoven layers and woven fabric, woven fabric is as the base cloth of glass fiber filter material, then carries out compoundly with nonwoven layers-base cloth-nonwoven layers structure, then becomes glass fiber filter material through pinprick reinforcement;
2) preparation finishing agent: every liter of finishing agent comprises following component: polytetrafluoroethylene (PTFE) dispersion emulsion 320-650ml/L, high temperature resistant fluorine-contaninig polyacrylate class softening agent 100-480ml/L, silicone based water repellent 80-180ml/L, siloxanes coupling agent 2-10ml/L, emulsifying agent 0.3-2ml/L, catalyst 0.05-1.55g/L, anionic blowing agent 1-20g/L, bleeding agent 0.5-40g/L, stabilizing agent 5-20g/L, each raw material in formula is assigned to 1 liter through the Hou Jiashui that stirs, namely obtain finishing agent stoste, the former fluid viscosity of finishing agent is controlled at 35-100mPas;
3) foam generates: adopt dynamic foam to generate equipment above-mentioned finishing agent is foamed, spinner velocity is 1000-5000rpm, and blowing ratio is controlled at 3-10 doubly;
4) coating process: adopt single or double scraper clamping coating, with step 3) in the foam that produces arrive the scraper place after conveyance conduit, and exert pressure in the conveyance conduit process and make the portal foam at place of scraper can arrive glass fiber filter material internal layer base cloth place, the coating layer thickness on glass fiber filter material single face top layer is 0.1-1.3mm; Spread is controlled at 30-120g/m
2The speed of a motor vehicle is at 3-20m/min;
5) drying technique: the glass fiber filter material after the process coating is carried out preliminary drying and bakes, and the preliminary drying temperature is at 100-160 ℃, and baking temperature is 140-220 ℃, and criteria thus the drying time is 1-5min, namely obtains described glass fiber filter material.
Owing to adding high temperature resistant type fluorine-contaninig polyacrylate class softening agent, siloxanes base class coupling agent in above-mentioned finishing agent formula, solved the shortcoming of polytetrafluoroethylparticle particle and glass fibre poor connectivity; Silicone based water repellent add the water and oil repellant effect that has improved glass fiber filter material, water contact angle reaches 120 °; Blowing agent adopts anionic surfactant, in order to improve foam stability, add stabilizing agent to improve foam wall thickness and viscosity, reinforced foam toughness in finishing agent, adding appropriate bleeding agent is in order to improve the penetrating power of finishing agent, makes foam enter better filtrate inside.
Coating process described in the preparation method of above-mentioned glass fiber filter material is different from conventional coating, and it needs foam of uniform size that certain pressure will generate to compress into filtrate inside, and arranges all that in filtrate both sides scraper carries out the clamping coating.
Drying technique of the present invention is mainly to make lather collapse, the finishing agent composition is cross-linked with each other, and finally forms uniform coated film at fiber surface.
The present invention is when the dynamic foam generator foam generated of selecting, and the foam that rotor speed generates when 1000-3000r/min is tiny, and spinner velocity is little and even, generates evenly tiny foam; If the excessive lather collapse that can make on the contrary generation.During foam, select suitable blowing ratio in preparation, blowing ratio is not only relevant with the dressing liquid permeance property, and also relevant to foam viscosity, blowing ratio is little, and the contained dressing liquid of unit foam is many, be conducive to dressing liquid wetting, permeate and be diffused in material surface and go; Otherwise foam viscosity is unfavorable for greatly osmosis; Show by lot of experiments, blowing ratio selects 3-10 doubly better.The foaming capacity of composite finishing agent, lather collapse speed, the too high too low generation that all is unfavorable for foam and stable.Arranging after the foam of this glass fiber filter material is that relative humidity is at 45-75%RH at 15-35 ℃.
In step 2) in preparation during finishing agent, first add emulsifying agent, catalyst, siloxanes coupling agent and part water to carry out emulsification, and then add polytetrafluoroethylene (PTFE) dispersion emulsion, high temperature resistant fluorine-contaninig polyacrylate class softening agent, silicone based water repellent, bleeding agent, stabilizing agent, water and stir, add again at last the foaming of anionic blowing agent.This is mainly a large amount of foams to occur in order to prevent from stirring to be unfavorable for finishing agent emulsification.
Step 1) in, the fibre fineness of described ultra-fine fibre glass is 4.5-7 μ m, and length is 48-70mm.
Step 2) in, the preferred version of each component in described finishing agent is as follows:
The solid content of described polytetrafluoroethylene (PTFE) dispersion emulsion is 40-75%, and pH value is at 7-8.
Described high temperature resistant fluorine-contaninig polyacrylate class softening agent acrylic ester monomer and fluorine copolymerized grafting form, and its active ingredient is at 45-70%, and molecular weight is at 5000-50000.
Described emulsifying agent is O/W anionic emulsifier or O/W type nonionic emulsifier.Wherein, described O/W anionic emulsifier comprises triethanolamine soap, polyoxyethylated alkyl phenol sulfate, alkylsulfonate; Described O/W type nonionic emulsifier comprises polyoxyethylene sorbitan monooleate, polyoxyethylene carboxylate phosphate, polyoxyethylene aliphatic alcohol ether, polyoxyethylene polyoxypropylene benzylbiphenyl phenolic ether.
Described catalyst is to comprise a kind of in the acetate of the metals such as inorganic salts such as zinc, lead, barium and metal soap such as soap.
Described bleeding agent anionic bleeding agent and nonionic penetrant, described anionic bleeding agent comprise succinate sodium 2-ethylhexyl, benzyl naphthalene sodium sulfonate, Negel, castor oil succinic acid vinegar sodium sulfonate, fatty acid amide N methyl taurine sodium salt; Described nonionic penetrant comprises polyoxyethylene sorbitan monostearate.
Described stabilizing agent is cellulose family or synthetic high polymer class, specifically a kind of in ammonium stearate, lauryl alcohol, N-octadecyl succinamide sulfonate, hydroxyethylcellulose, sodium alginate, Sodium Polyacrylate.
Beneficial effect: compared with prior art, advantage of the present invention is: it is comparatively even that coating way of the present invention not only makes finishing agent distribute in filtrate, reduced the migration phenomenon, and saved a large amount of water resources, electric energy and heat energy; When industrialization is produced, adopt the glass class filtrate that preparation method of the present invention makes to compare with padding method, every production 10,000 m
2Filtrate can be saved 5-10 ton water, 3000-6000 degree electricity and 1000-1300m
3Natural gas.Glass fiber filter material is after arranging, the 12-25% of filter material spread during by dip finishing drops to 7-15%, spread evenly distributes, flexibility is good, steady quality, chemical resistance, water and oil repellant performance are good, easy-to-clean ash, easily carry out suitability for industrialized production, can substitute the padding finishing of the serious water consumption power consumption of present use, and folding resistance improves, and its glass life-span can extend to about 15 months.
Description of drawings
Fig. 1 is the glass fiber filter material single face coating structure that the present invention prepares;
Fig. 2 is the glass fiber filter material coated on both sides structure that the present invention prepares.
The specific embodiment
The present invention is further described below by specific embodiment; should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from the principle of the invention; can also make some modification and improvement, these also should be considered as belonging to protection scope of the present invention.
The glass fiber filter material that the method for utilizing the finishing agent described in the present invention and adopting this finishing agent to process makes has improved the wearability of felt material after the coated on both sides finishing agent arranges, extended service life.For glass fiber filter material of the same race, adopt respectively the mode of padding general on market and foam coating mode of the present invention that glass fiber filter material is arranged, after testing, its main performance index is as shown in table 1.
Table 1 and existing glass fiber filter material performance indications contrast
Annotate: bending length can be estimated flexibility intuitively, and bending length is greatly more stiffening, otherwise soft, adopts 5cm wide during test; Folding resistance directly affects the life-span of glass fiber filter material.
Can find out from These parameters, the glass fiber filter material that utilizes preparation method involved in the present invention to make, have separation strength, tensile strength preferably, softness and feel have some improvement, wherein folding resistance is than the raising 18.9% of padding after processing, also extended three months its service life, can satisfy actual requirement fully.And saved in process of production water, electricity and petroleum resources, reduced cost.
Specifically set forth the present invention below by embodiment.
Embodiment 1:
1) filtrate production: using fineness is that 5.5 μ m, length 51mm glass fibre prepare filtrate, and two-layer is nonwoven layers, and middle one deck woven fabric is composited, grammes per square metre 708g/m
2, thickness 2.0mm.
2) preparation finishing agent: polytetrafluoroethylene (PTFE) dispersion emulsion 350ml/L, high temperature resistant fluorine-contaninig polyacrylate class softening agent 455ml/L, silicone based water repellent 85ml/L, siloxanes coupling agent 4.2ml/L, emulsifying agent 0.6ml/L, catalyst 0.10g/L, anionic blowing agent 3.0g/L, bleeding agent 2.8g/L, stabilizing agent 12.2g/L, each raw material in filling a prescription are assigned to 1 liter through the Hou Jiashui that stirs, make dressing liquid even through mechanical agitation, dressing liquid viscosity is 68mPas.
Wherein, the solid content 40% of polytetrafluoroethylene (PTFE) dispersion emulsion, pH value are 7; Emulsifying agent is triethanolamine soap; The inorganic salts catalyst is zinc acetate; Bleeding agent is succinate sodium 2-ethylhexyl; The stabilizing agent hydroxyethylcellulose; High temperature resistant fluorine-contaninig polyacrylate class softening agent is that acrylic ester monomer and fluorine copolymerized grafting form, and its active ingredient is at 45-70%, and molecular weight is at 5000-50000.
3) foam generates: the spinner velocity in foam generator equipment is 2000rpm, and blowing ratio is 4 times.
4) coating process: to the two-sided scraper foam coating that carries out of filtrate, the place applies 0.15KPa air pressure at the foam pipeline, and the coating layer thickness of single face is about 0.9mm, and the glue rate is 14.2%, and the speed of a motor vehicle is at 5m/min.
5) drying technique: need material is carried out preliminary drying and bakes after coating, the preliminary drying temperature is at 120 ℃, and baking temperature is 185 ℃, and criteria thus the drying time is 3min, namely obtains described glass fiber filter material.
Made glass fiber filter material as shown in Figure 2, middle one deck is base cloth 2,, be nonwoven layers 1 at upper surface and the lower surface of base cloth 2, each nonwoven layers 1 inside and outside, foam coating 3 is arranged all, wherein base cloth 2 is woven fabric.
The glass fiber filter material of this structure through performance test results is:
Grammes per square metre is 808.54g/m
2, thickness 2.1mm, separation strength 38.62N, the powerful 3215N of warp direction stretching, broadwise tensile strength 3178N, Air permenbility 17.8L/m
2.s, 123 ° of water contact angles, bending length are 25.4cm, and folding number is 2675 times/15mm1.5kg.
Embodiment 2:
1) filtrate production: using fineness is that 4.5 μ m, length 60mm glass fibre prepare filtrate, and two-layer is nonwoven layers, and middle one deck woven fabric is composited, grammes per square metre 685g/m
2, thickness 1.9mm.
2) preparation finishing agent: polytetrafluoroethylene (PTFE) dispersion emulsion 400ml/L, high temperature resistant fluorine-contaninig polyacrylate class softening agent 400ml/L, silicone based water repellent 110ml/L, siloxanes coupling agent 4.7ml/L, emulsifying agent 0.69ml/L, catalyst 0.22g/L, anionic blowing agent 9.8g/L, bleeding agent 16.6g/L, stabilizing agent 18.5g/L, each raw material in filling a prescription are assigned to 1 liter through the Hou Jiashui that stirs, make dressing liquid even through mechanical agitation, dressing liquid viscosity is 82mPas.
Wherein, the solid content 75% of polytetrafluoroethylene (PTFE) dispersion emulsion, pH value are 8; Emulsifying agent is polyoxyethylated alkyl phenol sulfate; The inorganic salts catalyst is lead acetate; Bleeding agent is the benzyl naphthalene sodium sulfonate; Stabilizing agent is lauryl alcohol;
3) foam generates: the spinner velocity in foam generator equipment is 4200rpm, and blowing ratio is 10 times.
4) coating process: to the two-sided scraper foam coating that carries out of filtrate, the place applies 0.10KPa air pressure at the foam pipeline, and the coating layer thickness of single face is about 0.8mm, and gluing is than 8.2%, and the speed of a motor vehicle is at 7m/min.
5) drying technique: need material is carried out preliminary drying and bakes after coating, the preliminary drying temperature is at 120 ℃, and baking temperature is 185 ℃, and criteria thus the drying time is 2.5min, namely obtains described glass fiber filter material.
Made glass fiber filter material as shown in Figure 2, middle one deck is base cloth 2,, be nonwoven layers 1 at upper surface and the lower surface of base cloth 2, each nonwoven layers 1 inside and outside, foam coating 3 is arranged all, wherein base cloth 2 is woven fabric.
The glass fiber filter material of this structure through performance test results is:
Grammes per square metre is 741.2g/m
2, thickness 1.9mm, separation strength 29.21N, the powerful 3375N of warp direction stretching, broadwise tensile strength 3394N, Air permenbility 25.8L/m
2.s, 115 ° of water contact angles, bending length are 19.4cm, and folding number is 3148 times/15mm1.5kg.
Embodiment 3:
1) filtrate production: using fineness is that 5.5 μ m, length 51mm glass fibre prepare filtrate, and two-layer is nonwoven layers, and middle one deck woven fabric is composited, grammes per square metre 740g/m
2, thickness 1.8mm.
2) preparation finishing agent: polytetrafluoroethylene (PTFE) dispersion emulsion 620ml/L, high temperature resistant fluorine-contaninig polyacrylate class softening agent 100ml/L, silicone based water repellent 170ml/L, siloxanes coupling agent 8.7ml/L, emulsifying agent 1.92ml/L, inorganic salts catalyst 1.55g/L, anionic blowing agent 20g/L, bleeding agent 38g/L, stabilizing agent 20g/L, each raw material in formula is assigned to 1 liter through the Hou Jiashui that stirs, make dressing liquid even through mechanical agitation, dressing liquid viscosity is 82mPas.
Wherein, the solid content 55% of polytetrafluoroethylene (PTFE) dispersion emulsion, pH value are 7.5; Emulsifying agent is alkylsulfonate; Catalyst is metal soap catalyst aliphatic acid barium; Bleeding agent is polyoxyethylene sorbitan monostearate; Stabilizing agent is Sodium Polyacrylate.
3) foam generates: the spinner velocity in foam generator equipment is 3800rpm, and blowing ratio is 6.5 times.
4) coating process: two-sided scraper coating, the place applies 0.05KPa pressure at the foam delivery pipeline, and the single face coating layer thickness is 0.9mm, and glue is than 11.67%, and the speed of a motor vehicle is at 8m/min.
5) drying technique: need material is carried out preliminary drying and bakes after coating, the preliminary drying temperature is at 125 ℃, and baking temperature is 195 ℃, and criteria thus the drying time is 2.5min, namely obtains described glass fiber filter material.
Made glass fiber filter material through performance test results is:
Grammes per square metre is 826.36g/m
2, thickness 1.9mm, separation strength 34.08N, the powerful 3102N of warp direction stretching, broadwise tensile strength 3037N, Air permenbility 21.8L/m
2.s, 112 ° of water contact angles, bending length are 28.6cm, and folding number is 2983 times/15mm1.5kg.
Embodiment 4:
1) filtrate production: using fineness is that 7 μ m, length 60mm glass fibre prepare filtrate, and two-layer is nonwoven layers, and middle one deck woven fabric is composited, grammes per square metre 760g/m
2, thickness 2.2mm.
2) preparation finishing agent: polytetrafluoroethylene (PTFE) dispersion emulsion 320ml/L, high temperature resistant fluorine-contaninig polyacrylate class softening agent 280ml/L, silicone based water repellent 80ml/L, siloxanes coupling agent 5.7ml/L, emulsifying agent 1.06ml/L, inorganic salts catalyst 0.78g/L, anionic blowing agent 10.2g/L, bleeding agent 9.7g/L, stabilizing agent 14.6g/L, each raw material in formula is assigned to 1 liter through the Hou Jiashui that stirs, make dressing liquid even through mechanical agitation, dressing liquid viscosity is 52mPas.
Wherein, the solid content 65% of polytetrafluoroethylene (PTFE) dispersion emulsion, pH value are 7; Emulsifying agent is triethanolamine soap; Inorganic salts catalyst acetic acid barium; Bleeding agent is the benzyl naphthalene sodium sulfonate; Stabilizing agent is sodium alginate.
3) foam generates: the spinner velocity in foam generator equipment is 2500rpm, and blowing ratio is 6 times.
4) coating process: adopt single face scraper coating, the place applies 0.25KPa pressure at the foam delivery pipeline, and coating layer thickness is 1.4mm, and glue is than 12.67%, and the speed of a motor vehicle is at 15.5m/min.
5) drying technique: need material is carried out preliminary drying and bakes after coating, the preliminary drying temperature is at 130 ℃, and baking temperature is 200 ℃, and criteria thus the drying time is 3min, namely obtains described glass fiber filter material.
Made glass fiber filter material structure as shown in Figure 1, middle one deck is base cloth 2,, be nonwoven layers 1 at upper surface and the lower surface of base cloth 2, a nonwoven layers 1 inside and outside all has foam coating 3 therein, wherein base cloth 2 is woven fabric.
The glass fiber filter material of this structure through performance test results is:
Grammes per square metre is 856.29g/m
2, thickness 2.3mm, separation strength 29.57N, the powerful 3142N of warp direction stretching, broadwise tensile strength 3103N, Air permenbility 22.3L/m
2.s, 112 ° of water contact angles, bending length are 19.7cm, and folding number is 3021 times/15mm1.5kg.
Embodiment 5:
1) making of glass fiber filter material: selecting fineness is that the 70mm ultra-fine fibre glass is raw material in 5.5 μ m, length, make respectively nonwoven layers and woven fabric, woven fabric is as the filtrate base cloth, then the structure of " nonwoven layers-base cloth-nonwoven layers " is carried out pinprick reinforcement, make between glass fibre in upper and lower nonwoven layers and base cloth fully by needling process that hook twines, the product of making is glass fiber filter material;
2) preparation finishing agent: the 1L of described finishing agent comprises: polytetrafluoroethylene (PTFE) dispersion emulsion 650ml/L, high temperature resistant fluorine-contaninig polyacrylate class softening agent 100ml/L, silicone based water repellent 80ml/L, siloxanes coupling agent 10ml/L, emulsifying agent 0.3ml/L, catalyst 0.05g/L, anionic blowing agent 1g/L, bleeding agent 0.5g/L, stabilizing agent 5g/L are assigned to 1 liter with each raw material in formula through the Hou Jiashui that stirs; Charging sequence is: first add emulsifying agent, inorganic salts catalyst, siloxanes coupling agent and part water to carry out emulsification, and then add polytetrafluoroethylene (PTFE) dispersion emulsion, high temperature resistant fluorine-contaninig polyacrylate class softening agent, silicone based water repellent, bleeding agent, stabilizing agent, water and stir, add again at last the foaming of anionic blowing agent; Namely obtain described arrangement stoste, viscosity is controlled at 100mPas;
Wherein, the solid content 70% of polytetrafluoroethylene (PTFE) dispersion emulsion, pH value are 7.6; Emulsifying agent is polyoxyethylene sorbitan monooleate; The inorganic salts catalyst is fatty acid zinc; Bleeding agent is fatty acid amide N methyl taurine sodium salt; Stabilizing agent is ammonium stearate.
3) foam generates: adopt dynamic foam to generate equipment above-mentioned finishing agent is foamed, spinner velocity is 1000rpm, and air supply and die head feed liquor amount depend on the size of blowing ratio, and the blowing ratio of glass fiber filter material involved in the present invention is controlled at 3 times;
4) coating process: to the two-sided scraper foam coating that carries out of filtrate, the place applies 0.15KPa air pressure at the foam pipeline, and the coating layer thickness of single face is about 1.3mm, and spread is controlled at 30-50g/m
2The speed of a motor vehicle is at 3.6m/min..
5) drying technique: need material is carried out preliminary drying and bakes after coating, the preliminary drying temperature is at 100 ℃, and baking temperature is 220 ℃, and criteria thus the drying time is 5min, namely obtains described glass fiber filter material.
Embodiment 6:
1) making of glass fiber filter material: selecting fineness is that the 48mm ultra-fine fibre glass is raw material in 5.5 μ m, length, make respectively nonwoven layers and woven fabric, woven fabric is as the filtrate base cloth, then the structure of " nonwoven layers-base cloth-nonwoven layers " is carried out pinprick reinforcement, make between glass fibre in upper and lower nonwoven layers and base cloth fully by needling process that hook twines, the product of making is glass fiber filter material;
2) preparation finishing agent: the 1L of described finishing agent comprises: polytetrafluoroethylene (PTFE) dispersion emulsion 330ml/L, high temperature resistant fluorine-contaninig polyacrylate class softening agent 300ml/L, silicone based water repellent 180ml/L, siloxanes coupling agent 2ml/L, emulsifying agent 2ml/L, inorganic salts catalyst 1.55g/L, anionic blowing agent 15g/L, bleeding agent 28g/L, stabilizing agent 10g/L are assigned to 1 liter with each raw material in formula through the Hou Jiashui that stirs; Charging sequence is: first add emulsifying agent, inorganic salts catalyst, siloxanes coupling agent and part water to carry out emulsification, and then add polytetrafluoroethylene (PTFE) dispersion emulsion, high temperature resistant fluorine-contaninig polyacrylate class softening agent, silicone based water repellent, bleeding agent, stabilizing agent, water and stir, add again at last the foaming of anionic blowing agent; Namely obtain described arrangement stoste;
Wherein, the solid content 60% of polytetrafluoroethylene (PTFE) dispersion emulsion, pH value are 7.2; Emulsifying agent is polyoxyethylene polyoxypropylene benzylbiphenyl phenolic ether; The inorganic salts catalyst is zinc acetate; Bleeding agent is Negel; Stabilizing agent is Sodium Polyacrylate.
3) foam generates: adopt dynamic foam to generate equipment above-mentioned finishing agent is foamed, spinner velocity is 5000rpm, and air supply and die head feed liquor amount depend on the size of blowing ratio, and the blowing ratio of glass fiber filter material involved in the present invention is controlled at 8 times;
4) coating process: to the two-sided scraper foam coating that carries out of filtrate, the place applies 0.15KPa air pressure at the foam pipeline, and the coating layer thickness of single face is about 0.1mm, and spread is controlled at 104g/m
2The speed of a motor vehicle is at 12.5m/min..
5) drying technique: need material is carried out preliminary drying and bakes after coating, the preliminary drying temperature is at 160 ℃, and baking temperature is 140 ℃, and criteria thus the drying time is 5min, namely obtains described glass fiber filter material.
Claims (6)
1. glass fiber filter material, it is characterized in that: comprise base cloth (2), upper surface and lower surface at base cloth (2) are respectively equipped with nonwoven layers (1), and at the inside and outside foam coating (3) that is provided with of at least one nonwoven layers (1), the preparation method of above-mentioned glass fiber filter material is as follows:
1) making of glass fiber filter material: select ultra-fine fibre glass as the raw material of preparation glass fiber filter material, make respectively nonwoven layers and woven fabric, woven fabric is as the base cloth of glass fiber filter material, then carries out compoundly with nonwoven layers-base cloth-nonwoven layers structure, then becomes glass fiber filter material through pinprick reinforcement;
2) preparation finishing agent: every liter of finishing agent comprises following component: polytetrafluoroethylene (PTFE) dispersion emulsion 320-650ml/L, high temperature resistant fluorine-contaninig polyacrylate class softening agent 100-480ml/L, silicone based water repellent 80-180 ml/L, siloxanes coupling agent 2-10 ml/L, emulsifying agent 0.3-2 ml/L, catalyst 0.05-1.55 g/L, anionic blowing agent 1-20g/L, bleeding agent 0.5-40 g/L, stabilizing agent 5-20 g/L, each raw material in formula is assigned to 1 liter through the Hou Jiashui that stirs, namely obtain finishing agent stoste, the former fluid viscosity of finishing agent is controlled at 35-100mPas, described emulsifying agent is O/W anionic emulsifier or O/W type nonionic emulsifier, described catalyst is inorganic salts catalyst or metal soap catalyst, described bleeding agent is anionic bleeding agent or nonionic penetrant, described stabilizing agent is cellulose family stabilizing agent or synthetic high polymer class stabilizing agent,
3) foam generates: adopt dynamic foam to generate equipment above-mentioned finishing agent is foamed, spinner velocity is 1000-5000rpm, and blowing ratio is controlled at 3-10 doubly;
4) coating process: adopt single or double scraper clamping coating, the foam that produces in step 3) is arrived the scraper place after conveyance conduit, and exert pressure in the conveyance conduit process and make the portal foam at place of scraper can arrive glass fiber filter material internal layer base cloth place, the coating layer thickness on glass fiber filter material single face top layer is 0.1-1.3mm; Spread is controlled at 30-120g/m
2The speed of a motor vehicle is at 3-20m/min;
5) drying technique: the glass fiber filter material after the process coating is carried out preliminary drying and bakes, and the preliminary drying temperature is at 100-160 ℃, and baking temperature is 140-220 ℃, and criteria thus the drying time is 1-5min, namely obtains described glass fiber filter material.
2. a kind of glass fiber filter material according to claim 1 is characterized in that: two nonwoven layers (1) inside and outside, foam coating (3) is arranged all.
3. the preparation method of glass fiber filter material according to claim 1, is characterized in that, the method comprises the steps:
1) making of glass fiber filter material: select ultra-fine fibre glass as the raw material of preparation glass fiber filter material, make respectively nonwoven layers and woven fabric, woven fabric is as the base cloth of glass fiber filter material, then carries out compoundly with nonwoven layers-base cloth-nonwoven layers structure, then becomes glass fiber filter material through pinprick reinforcement;
2) preparation finishing agent: every liter of finishing agent comprises following component: polytetrafluoroethylene (PTFE) dispersion emulsion 320-650ml/L, high temperature resistant fluorine-contaninig polyacrylate class softening agent 100-480ml/L, silicone based water repellent 80-180 ml/L, siloxanes coupling agent 2-10 ml/L, emulsifying agent 0.3-2 ml/L, catalyst 0.05-1.55 g/L, anionic blowing agent 1-20g/L, bleeding agent 0.5-40 g/L, stabilizing agent 5-20 g/L, each raw material in formula is assigned to 1 liter through the Hou Jiashui that stirs, namely obtain finishing agent stoste, the former fluid viscosity of finishing agent is controlled at 35-100mPas, described emulsifying agent is O/W anionic emulsifier or O/W type nonionic emulsifier, described catalyst is inorganic salts catalyst or metal soap catalyst, described bleeding agent is anionic bleeding agent or nonionic penetrant, described stabilizing agent is cellulose family stabilizing agent or synthetic high polymer class stabilizing agent,
3) foam generates: adopt dynamic foam to generate equipment above-mentioned finishing agent is foamed, spinner velocity is 1000-5000rpm, and blowing ratio is controlled at 3-10 doubly;
4) coating process: adopt single or double scraper clamping coating, the foam that produces in step 3) is arrived the scraper place after conveyance conduit, and exert pressure in the conveyance conduit process and make the portal foam at place of scraper can arrive glass fiber filter material internal layer base cloth place, the coating layer thickness on glass fiber filter material single face top layer is 0.1-1.3mm; Spread is controlled at 30-120g/m
2The speed of a motor vehicle is at 3-20m/min;
5) drying technique: the glass fiber filter material after the process coating is carried out preliminary drying and bakes, and the preliminary drying temperature is at 100-160 ℃, and baking temperature is 140-220 ℃, and criteria thus the drying time is 1-5min, namely obtains described glass fiber filter material.
4. the preparation method of glass fiber filter material according to claim 3, it is characterized in that, in step 2) in preparation during finishing agent, first add emulsifying agent, catalyst, siloxanes coupling agent and water to carry out emulsification, and then add polytetrafluoroethylene (PTFE) dispersion emulsion, high temperature resistant fluorine-contaninig polyacrylate class softening agent, silicone based water repellent, bleeding agent, stabilizing agent, water and stir, add again at last the foaming of anionic blowing agent.
5. the preparation method of glass fiber filter material according to claim 3, is characterized in that, the fibre fineness of described ultra-fine fibre glass is 4.5-7 μ m, and length is 48-70mm.
6. the preparation method of according to claim 3 or 4 described glass fiber filter materials, is characterized in that, described high temperature resistant fluorine-contaninig polyacrylate class softening agent is that acrylic ester monomer and fluorine copolymerized grafting form, and its molecular weight ranges is at 5000-50000.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110028398 CN102151435B (en) | 2011-01-27 | 2011-01-27 | Glass fiber filter material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110028398 CN102151435B (en) | 2011-01-27 | 2011-01-27 | Glass fiber filter material and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102151435A CN102151435A (en) | 2011-08-17 |
| CN102151435B true CN102151435B (en) | 2013-05-15 |
Family
ID=44433308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110028398 Active CN102151435B (en) | 2011-01-27 | 2011-01-27 | Glass fiber filter material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102151435B (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102776777B (en) * | 2012-08-06 | 2014-05-07 | 四川省玻纤集团有限公司 | Surface treating agent and surface treating process of glass fiber filter cloth |
| CN102817245B (en) * | 2012-08-13 | 2014-11-26 | 中材科技股份有限公司 | Treatment method for glass fiber cloth |
| CN102808326B (en) * | 2012-08-13 | 2014-11-26 | 中材科技股份有限公司 | Preparation method for modified inorganic fiber cloth |
| CN104151755A (en) * | 2014-08-15 | 2014-11-19 | 安徽省元琛环保科技有限公司 | PTFE composite emulsion for filter material post-treatment |
| CN104941331B (en) * | 2015-06-02 | 2017-01-11 | 江苏华强新能源科技有限公司 | High efficiency air filter element for gas turbine and production process thereof |
| CN106351019A (en) * | 2016-08-31 | 2017-01-25 | 江苏理文造纸有限公司 | High-efficiency boiler dust collecting bag |
| CN106811974A (en) * | 2016-12-27 | 2017-06-09 | 科林环保技术有限责任公司 | A kind of technique for improving netted glass fiber filter material skeleton |
| CN107261643B (en) * | 2017-06-22 | 2019-08-02 | 江苏华跃纺织新材料科技股份有限公司 | A kind of foam coating complex fire resistant filtrate and preparation method thereof |
| CN107385936B (en) * | 2017-07-12 | 2019-12-17 | 广东生益科技股份有限公司 | method for preparing PTFE (Polytetrafluoroethylene) varnished cloth, PTFE varnished cloth prepared by method and metal foil-clad laminated board |
| CN108261838B (en) * | 2018-02-05 | 2020-08-14 | 安徽元琛环保科技股份有限公司 | Special filter material for waste incineration and preparation method and application thereof |
| CN110760145A (en) * | 2019-10-23 | 2020-02-07 | 东华大学 | Fluorine-containing polymer foaming emulsion and preparation method thereof |
| CN111282344A (en) * | 2020-03-31 | 2020-06-16 | 辽宁新洪源环保材料有限公司 | Double-side coating permeable membrane filter material and preparation method thereof |
| CN116173621B (en) * | 2023-02-16 | 2023-09-29 | 江苏奥凯环境技术有限公司 | Aramid fiber filter material for ultralow emission and production process thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2003220910A1 (en) * | 2002-03-13 | 2003-09-22 | Mitsubishi Chemical Corporation | Process for production of fullerenes and method for separation thereof |
| CN201304296Y (en) * | 2008-09-04 | 2009-09-09 | 上海博格工业用布有限公司 | High-temperature resistant composite fiber needled filter felt with nano-particle compact layer on surface |
| CN101530698B (en) * | 2009-03-10 | 2011-04-20 | 上海博格工业用布有限公司 | Non-woven filter felt combining air-laid web with pinprick reinforcement |
-
2011
- 2011-01-27 CN CN 201110028398 patent/CN102151435B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN102151435A (en) | 2011-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102151435B (en) | Glass fiber filter material and preparation method thereof | |
| CN103864982B (en) | Preparation method of fluorinated acrylate emulsion | |
| CN102776786B (en) | Non-emulsion type pure oiling agent for high speed spinning of polyamide-6 filaments | |
| CN104963098A (en) | Method for preparing electrostatic spinning perfluocarbon polymer nanofiber membrane | |
| CN107557894A (en) | A kind of efficiently two-dimension netted superfine nanofiber water-oil separating material of high flux and preparation method thereof | |
| CN102702437B (en) | Styrene-acrylic emulsion as well as preparation method and application thereof | |
| CN101367898B (en) | PVDC copolymerization emulsion, preparation and uses thereof | |
| CN104031204B (en) | The preparation method of cationic fluorochemical polyacrylic acid ester soap-free emulsion | |
| CN102179106B (en) | Finishing agent for aftertreatment of glass fiber filter material | |
| CN104878592A (en) | Arranging method of single-faced super-hydrophobic cotton fabrics | |
| CN101805995A (en) | Fabric finishing agent and fabric finishing method | |
| CN108252098A (en) | A kind of polyester fiber spinning oil and preparation method thereof | |
| WO2023232098A1 (en) | Preparation method for ultra-thin and ultra-breathable microporous membrane | |
| CN104562708B (en) | A kind of preparation method of the anti-electrostatic polyester tablecloth | |
| CN108252104A (en) | A kind of preparation method for smooth agent of weaving | |
| CN101984154B (en) | Method for preparing water-repellent polyester fibers | |
| CN103966676B (en) | Nano thin-film device for spinning | |
| CN103866567A (en) | Pilling resistant liquid, and method for improving pilling of woven cotton fabric | |
| CN105970628A (en) | Water-based hollow fluorine-silicon composite water-repellent and breathable textile finishing agent and preparation method | |
| CN109056338A (en) | A kind of polysiloxane type antistatic finishing agent and preparation method thereof | |
| CN106637952A (en) | Protein amino acid added textile size and preparation method thereof | |
| CN115572348B (en) | Preparation method of polydopamine methacrylamide lavender nanocapsules and application of polydopamine methacrylamide lavender nanocapsules in washing fastness | |
| CN105220245A (en) | A kind of spinning solution of suitable electrospinning polytetrafluoroethylsuperfine superfine fiber film | |
| CN115262235B (en) | Microcapsule aroma type sanitary spunlaced nonwoven material and preparation method thereof | |
| CN106637978A (en) | Sizing agent specially used for textile sizing, and preparation method of sizing agent |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NANJING JIHUA 3521 ENVIRONMENTAL TECHNOLOGY CO., L Free format text: FORMER OWNER: NANJING JIHUA 3521 SPECIAL EQUIPMENT CO., LTD. Effective date: 20150212 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 210007 NANJING, JIANGSU PROVINCE TO: 210000 NANJING, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150212 Address after: Jiangsu province Nanjing City Road 210000, Jiangning Binjiang Development Zone Patentee after: Nanjing Jihua 3521 Environmental Protection Science & Technology Co., Ltd. Address before: 210007 Jiangsu city of Nanjing Province in Baixia District No. 1 East Road Patentee before: Nanjing Jihua 3521 Special Equipment Co., Ltd. |