CN101422672B - Preparation method of anti-flaming washable filter material - Google Patents
Preparation method of anti-flaming washable filter material Download PDFInfo
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- CN101422672B CN101422672B CN2008102309885A CN200810230988A CN101422672B CN 101422672 B CN101422672 B CN 101422672B CN 2008102309885 A CN2008102309885 A CN 2008102309885A CN 200810230988 A CN200810230988 A CN 200810230988A CN 101422672 B CN101422672 B CN 101422672B
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Abstract
The invention discloses a preparation method of a flame-retardant and washable filter material. The flame-retardant and washable filter material is the filter material which is prepared by the following steps: a basic material is acupunctured and compounded by a polyester or a polypropylene fiber fine filter layer with a polyester or a polypropylene rough fine filter layer, then is emerged into a flame-retardant solution which is prepared by waterborne polyurethane, an acyclic phosphate flame retardant and sodium dihydrogen phosphate according to a certain proportion and then compacted by a twin-roll and dried and ironed out after being sprayed with the flame-retardant solution; and the formed fiber crossing points are fixed by gel points with the filter material with the fiber surface being covered by a smooth glue layer. The filter material is flame-retardant and washable.
Description
Technical field:
The present invention relates to a kind of anti-flaming washable filter material and preparation method thereof, relate to the filtering material of systems such as a kind of concentrated ventilation, central air-conditioning and fluid purification specifically.
Background technology:
China is the maximum developing country of world population, since phase late 1970s, along with China's economic development continuously and healthily, the environmental problem that occurs stage by stage in the century-old course of industrialization in the developed country is concentrated in China and is occurred, and the contradiction order benefit of environment and development is outstanding.The resource relative shortage, ecological environment frailty, the environmental carrying capacity deficiency becomes the significant problem in the Chinese development gradually.The Eleventh Five-Year Plan of China is had higher requirement to environmental protection, and aspects such as water, gas, sound, slag all arrive filtering material, filtering material industry market promise well with more applications.Along with the pay attention to day by day of people to atmospheric environment and IAQ, the issuing and implementation of a series of environmental regulations make air filting material take on the role who becomes more and more important in environmental improvement, and have obtained significant progress.Air filting material has occupied the 3rd in six big markets of international filtering material, become fastest-rising part in the international filtering material market.Air environmental pollution is the emphasis of China's environmental pollution control, air filting material is the important technical that atmospheric environment is administered, along with country's perfect day by day to the increasing of environmental protection investment and environmental regulation, the application prospect of air filting material in atmospheric environment is administered will be more wide.
At present, our used fire-retardant filtering material is because water-fast washing not, promptly needs after saturated more to renew when dust containing capacity reaches, and this had both increased the spending of enterprise, again environment had been caused pollution simultaneously.And the anti-flaming washable filter material of my company's development, removing water after dust containing capacity reaches capacity rinses well and can reuse, this greatly reduces the cost of enterprise, reduced simultaneously pollution again to environment, and this product has anti-flammability again, so can improve the fireproof security greatly.
Summary of the invention:
The technical issues that need to address of the present invention are the preparation methods that disclose a kind of anti-flaming washable filter material, to satisfy the problem of contemporary society to the resource energy-conserving and environment-protective, the said anti-flaming washable filter material of the present invention is to be combined into basic material by terylene or the thin filter course of polypropylene fiber and terylene or the acupuncture of polypropylene fiber coarse filtration layer, and then be soaked in aqueous polyurethane, the cyclic phosphate fire retardant, in the flame-retardant glue solution that sodium dihydrogen phosphate is made into by a certain percentage, yet roll through two roll-ins again, oven dry, spray fire retardant glue solution again, oven dry is plated again, and form fiber intersection points by the fixing filtering material that covers by smooth glue-line with fiber surface of glue point
The preparation method of anti-flaming washable filter material of the present invention comprises the steps:
(1) preparation of thin filter course:
Terylene or polypropylene short fiber fineness are 2-6dtex, and length is 50-80mm, evenly mix, by shredding, combing, lapping, acupuncture, needing machine speed is 1000-1500 times/minutes, and bestock is 2000-4000 pieces/meters, terylene or polypropylene fiber are intertwined mutually and make;
(2) the thickness filter course is combined into the preparation of trapezium structure filtering substrate:
The fineness of terylene or polypropylene short fiber is 8-20dtex in the coarse filtration layer, length is 51-80mm, the fineness of three-dimensional crimp polyester staple is 6-18dtex, length is 40-60mm, evenly mix, by shredding, combing, lapping on (1), acupuncture, needing machine speed is 900-1400 times/minutes, bestock is 1800-3000 pieces/meters, makes two-layer fiber twine the trapezium structure filtering substrate that is composited mutually.Wherein, thin filter course terylene or polypropylene short fiber: coarse filtration layer terylene or polypropylene short fiber: coarse filtration layer three-dimensional crimp polyester staple=25:65:10, weight ratio, thickness is 3-20mm;
(3) preparation of fire retardant glue:
With aqueous polyurethane or acrylate polymer: the cyclic phosphate fire retardant: sodium dihydrogen phosphate is in the even proportioning of ratio of 35-55:38-63:2-7, and weight ratio mixes;
(4) with the needle-punched composite of making in the step (2), impregnated in the mixture of (3) and water, with 1.5-8.5 meters/minutes speed operation, roll through two roll-ins, moisture content is removed, under 120 ℃-260 ℃ temperature, dry;
(5) again with the two-sided uniform sprinkling (3) of the material made in (4) and the mixture of water, under 100 ℃-230 ℃ temperature, dry, the press that enters 130 ℃-180 ℃ flattens, the rolling of cutting edge then, fix and the filtering material of fiber surface by glue point and form fiber intersection points, promptly obtain trapezium structure filtering material of the present invention by smooth glue-line covering.
Because this filtering material is not only fire-retardant but also water-fast to be washed, so can be widely used in relevant use field both at home and abroad, reduced use cost, reduce the discharging of pollutant, thereby reached the effect of protection environment and energy-saving and emission-reduction.
The specific embodiment:
Embodiment 1
(1) preparation of thin filter course:
Terylene or polypropylene fiber fineness are 2dtex, and length is the short fiber of 50mm, evenly mix, by shredding combing, lapping, acupuncture, needing machine speed is 1500 times/minute, and bestock is 4000 pieces/meter, terylene or polypropylene fiber are intertwined mutually and make.Thickness is 0.5mm.
(2) the thickness filter course is combined into the preparation of trapezium structure filtering substrate:
The fineness of the short fiber of terylene or polypropylene fibre is 8dtex in the coarse filtration layer, length is 51mm, the fineness of three-dimensional crimp polyester staple is 6dtex, length is 40mm, evenly mix, by shredding, combing, lapping is on (1), acupuncture, needing machine speed is 1400 times/minute, bestock is 3000 pieces/meter, make two-layer fiber twine the trapezium structure filtering substrate that is composited mutually, wherein, thin filter course terylene or polypropylene short fiber: coarse filtration layer terylene or polypropylene short fiber: coarse filtration layer three-dimensional crimp polyester staple=25:65:10, weight ratio, thickness are 3mm.
(3) preparation of fire retardant glue:.
With melmac or aqueous polyurethane or acrylate polymer: cyclic phosphate or phosphate or ammonium polyphosphate flame retardant: diester or sodium dihydrogen phosphate are in the even proportioning of ratio of 35:63:2 for poly terephthalic acid, and weight ratio mixes.
(4) the acupuncture base material is soaked in the mixture of (2) and water,, rolls, moisture content is removed, under 260 ℃ temperature, dry through two roll-ins with 1.5 meters/minute speed operation.
(5) again with the two-sided uniform sprinkling (3) of the material made in (4) and the mixture of water, under 100 ℃ temperature, dry, the press that enters 130 ℃ flattens, the rolling of cutting edge then, fix and the filtering material of fiber surface by glue point and form fiber intersection points, promptly obtain trapezium structure filtering material of the present invention by smooth glue-line covering.
Material of the present invention adopts TB/T3138-2006 " rolling stock fire proofing technical conditions "; GB/T5454-1997 " textile combustion performance test oxygen index method "; GB/T8323-1987 " plastics combustibility test method smoke density method "; GB8624-2006 standards such as " construction material and the classifications of goods combustibility " detects, and the result is as follows:
Thickness: 3.0mm
Wind speed: 1.0m/s
Resistance: 30pa
Dust containing capacity 〉=100g/m
2
Face proportion: 200g/m
2
Numeration efficient: 50 (〉=5 μ m)
Oxygen index (OI): 27.5
Miter angle burning: difficult combustion
Smoke density D4:321
Resistance to water: wash 20 times, its flame retarding efficiency still can reach the E level
Embodiment 2
(1) preparation of thin filter course:
Terylene or polypropylene fiber fineness are 4dtex, and length is the short fiber of 65mm, evenly mix, by shredding combing, lapping, acupuncture, needing machine speed is 1250 times/minute, and bestock is 3000 pieces/meter, terylene or polypropylene fiber are intertwined mutually and make.Thickness is 1mm.
(2) the thickness filter course is combined into the preparation of trapezium structure filtering substrate:
The fineness of the short fiber of terylene or polypropylene fibre is 14dtex in the coarse filtration layer, length is 65mm, the fineness of three-dimensional crimp polyester staple is 12dtex, length is 50mm, evenly mix, by shredding, combing, lapping is on (1), acupuncture, needing machine speed is 1200 times/minute, bestock is 2400 pieces/meter, make two-layer fiber twine the trapezium structure filtering substrate that is composited mutually, wherein, thin filter course terylene or polypropylene short fiber: coarse filtration layer terylene or polypropylene short fiber: coarse filtration layer three-dimensional crimp polyester staple=25:65:10, weight ratio, thickness are 9mm.
(3) preparation of fire retardant glue:
With melmac or aqueous polyurethane or acrylate polymer: cyclic phosphate or phosphate or ammonium polyphosphate flame retardant: diester or sodium dihydrogen phosphate are in the even proportioning of ratio of 45:50:5 for poly terephthalic acid, and weight ratio mixes.
(4) the acupuncture base material is soaked in the mixture of (2) and water,, rolls, moisture content is removed, under 190 ℃ temperature, dry through two roll-ins with 5 meters/minute speed operation.
(5) again with the two-sided uniform sprinkling (3) of the material made in (4) and the mixture of water, under 160 ℃ temperature, dry, the press that enters 160 ℃ flattens, the rolling of cutting edge then, fix and the filtering material of fiber surface by glue point and form fiber intersection points, promptly obtain trapezium structure filtering material of the present invention by smooth glue-line covering.
Material of the present invention adopts TB/T 3138-2006 " rolling stock fire proofing technical conditions "; GB/T5454-1997 " textile combustion performance test oxygen index method "; GB/T 8323-1987 " plastics combustibility test method smoke density method "; GB 8624-2006 standards such as " construction material and the classifications of goods combustibility " detects, and the result is as follows:
Thickness: 9.0mm
Wind speed: 2.0m/s
Resistance: 50pa
Dust containing capacity 〉=200g/m
2
Face proportion: 360g/m
2
Numeration efficient: 80 (〉=5 μ m)
Oxygen index (OI): 27.5
Miter angle burning: difficult combustion
Smoke density D4:321
Resistance to water: wash 20 times, its flame retarding efficiency still can reach the E level
Embodiment 3
(1) preparation of thin filter course:
Terylene or polypropylene fiber fineness are 6dtex, and length is the short fiber of 80mm, evenly mix, by shredding combing, lapping, acupuncture, needing machine speed is 1000 times/minute, and bestock is 2000 pieces/meter, terylene or polypropylene fiber are intertwined mutually and make.Thickness is 1mm.
(2) the thickness filter course is combined into the preparation of trapezium structure filtering substrate:
The fineness of the short fiber of terylene or polypropylene fibre is 20dtex in the coarse filtration layer, length is 80mm, the fineness of three-dimensional crimp polyester staple is 18dtex, length is 60mm, evenly mix, by shredding, combing, lapping is on (1), acupuncture, needing machine speed is 900 times/minute, bestock is 1800 pieces/meter, make two-layer fiber twine the trapezium structure filtering substrate that is composited mutually, wherein, thin filter course terylene or polypropylene short fiber: coarse filtration layer terylene or polypropylene short fiber: coarse filtration layer three-dimensional crimp polyester staple=25:65:10, weight ratio, thickness are 15mm.
(3) preparation of fire retardant glue:
With melmac or aqueous polyurethane or acrylate polymer: cyclic phosphate or phosphate or ammonium polyphosphate flame retardant: diester or sodium dihydrogen phosphate are in the even proportioning of ratio of 55:38:7 for poly terephthalic acid, and weight ratio mixes.
(4) the acupuncture base material is soaked in the mixture of (2) and water,, rolls, moisture content is removed, under 120 ℃ temperature, dry through two roll-ins with 8.5 meters/minute speed operation.
(5) again with the two-sided uniform sprinkling (3) of the material made in (4) and the mixture of water, under 230 ℃ temperature, dry, the press that enters 180 ℃ flattens, the rolling of cutting edge then, fix and the filtering material of fiber surface by glue point and form fiber intersection points, promptly obtain trapezium structure filtering material of the present invention by smooth glue-line covering.
Material of the present invention adopts TB/T3138-2006 " rolling stock fire proofing technical conditions "; GB/T5454-1997 " textile combustion performance test oxygen index method "; GB/T 8323-1987 " plastics combustibility test method smoke density method "; GB8624-2006 standards such as " construction material and the classifications of goods combustibility " detects, and the result is as follows:
Thickness: 15.0mm
Wind speed: 3.0m/s
Resistance: 70pa
Dust containing capacity 〉=300g/m
2
Face proportion: 550g/m
2
Numeration efficient: 99 (〉=5 μ m)
Oxygen index (OI): 27.5
Miter angle burning: difficult combustion
Smoke density D4:321
Resistance to water: wash 20 times, its flame retarding efficiency still can reach the E level.
Claims (3)
1. the preparation method of anti-flaming washable filter material, it is characterized in that, this filtering material is not only fire-retardant but also water-fast to be washed, it is to be combined into the trapezoidal-structure filtering substrate by terylene or the thin filter course of polypropylene fiber and terylene or the acupuncture of polypropylene fiber coarse filtration layer, be soaked in again in the fire retardant glue solution of proportioning by a certain percentage, oven dry, spray the fire retardant glue solution of proportioning by a certain percentage again, dry and form, comprise the steps: the preparation of (1) thin filter course: terylene or polypropylene fiber fineness are 2-6dtex, length is the short fiber of 50-80mm, evenly mixes, by shredding, combing, lapping, acupuncture, needing machine speed is 1000-1500 time/minute, bestock is 2000-4000 piece/meter, fiber is intertwined mutually and makes, and thickness is 0.5-2mm; (2) the thickness filter course is combined into the preparation of trapezium structure filtering substrate: the fineness of terylene or polypropylene short fiber is 8-20dtex in the coarse filtration layer, length is 51-80mm, the fineness of three-dimensional crimp polyester staple is 6-18dtex, length is 40-60mm, evenly mix, by shredding, combing, lapping is on the thin filter course of step (1) preparation, acupuncture, needing machine speed is 900-1400 time/minute, bestock is 1800-3000 piece/meter, make two-layer fiber twine the trapezium structure filtering substrate that is composited mutually, wherein, thin filter course terylene or polypropylene short fiber: coarse filtration layer terylene or polypropylene short fiber: coarse filtration layer three-dimensional crimp polyester staple=25: 65: 10, weight ratio, thickness is 3-15mm; (3) preparation of fire retardant glue: with aqueous polyurethane: the cyclic phosphate fire retardant: sodium dihydrogen phosphate evenly mixes in the ratio of 35-55: 38-63: 2-7, weight ratio; (4) with the needle-punched composite of making in the step (2), impregnated in the mixed solution of (3) and water, with 1.5-8.5 rice/minute the speed operation, roll through two roll-ins, moisture content is removed, under 120 ℃-260 ℃ temperature, dry; (5) again the material two-side of making in (4) is sprayed uniformly the fire retardant glue of step (3) preparation and the mixed solution of water, under 100 ℃-230 ℃ temperature, dry, the press that enters 130 ℃-180 ℃ flattens, the rolling of cutting edge then, fix and the filtering material of fiber surface by glue point and form fiber intersection points, promptly obtain trapezium structure filtering material of the present invention by smooth glue-line covering.
2. the preparation method of anti-flaming washable filter material according to claim 1 is characterized in that, the performance of filtering material reaches fire-retardant, water-fast easy cleaning, and water cleans more than 20 times, and its flame retardant effect still can reach more than the E level.
3. the preparation method of anti-flaming washable filter material according to claim 1 is characterized in that, the initial resistance of this filtering material :≤30-70pa, dust containing capacity: 〉=100-300g/m
2, face proportion: 200-550g/m
2, thickness: 3-15mm, rated wind speed: 1-3m/s, numeration efficient: 50-99% (〉=5 μ m), the water-fast number of times of washing wash back flame retardant effect E level more than 20 times.
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| CN2008102309885A CN101422672B (en) | 2008-11-12 | 2008-11-12 | Preparation method of anti-flaming washable filter material |
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| CN2008102309885A CN101422672B (en) | 2008-11-12 | 2008-11-12 | Preparation method of anti-flaming washable filter material |
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| CN101422672B true CN101422672B (en) | 2011-02-09 |
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|---|---|---|---|---|
| CN105536350A (en) * | 2016-01-21 | 2016-05-04 | 河南省安克林滤业有限公司 | Preparation process of flame-resistant washable filter material |
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