CN102517977A - Glass fiber air filter paper with excellent electrical addition property and its preparation method - Google Patents
Glass fiber air filter paper with excellent electrical addition property and its preparation method Download PDFInfo
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- CN102517977A CN102517977A CN2011104302007A CN201110430200A CN102517977A CN 102517977 A CN102517977 A CN 102517977A CN 2011104302007 A CN2011104302007 A CN 2011104302007A CN 201110430200 A CN201110430200 A CN 201110430200A CN 102517977 A CN102517977 A CN 102517977A
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Abstract
The invention relates to a glass fiber air filter paper with excellent electrical addition property and its preparation method, the obtained glass fiber air filter paper enables small leakage current by adding high voltage electrostatic. The preparation method of the glass fiber air filter paper with excellent electrical addition property is prepared by uniformly mixing alkali-free microfiber glass wool with14-34 degree SR, polyester fiber with fineness of 0.7-6.7dtex and length of 3-12mm, and alkali-free glass fiber with diameter of 7-11 mum and length of 6-12mm through a wet method. The mass ratio of alkali-free microfiber glass wool to polyester fiber to alkali-free glass fiber chopped strands is (12-18): (1-2): (5-10). The filtering efficiency of the glass fiber air filter paper with excellent electrical addition property belongs to the intermediate efficiency filter paper (F6-F9), the electric discharge (electric leakage) rate is small under the high voltage electrostatic environment, and the filtering efficiency of the filter paper is substantially enhanced, but the resistance change is little.
Description
Technical field
The present invention relates to a kind of glass fibre air paper that powers up excellent performance and preparation method thereof.
Background technology
The main raw material(s) of making air filter paper has string, organic fiber, microfibrous glass cotton (glass fibre) etc.Two important indicators weighing air filter paper are filter efficiency and resistance.
After filter efficiency is meant that air passes through air filter paper with certain face speed (speed), the ability of the various particle diameter solia particles that filter paper can be intercepted.Generally speaking, the efficient of air filter paper is high, and the various particle diameter solia particles of intercepting are just many, and then corresponding air drag is just big; The efficient of filter paper is low, and then resistance is with regard to little (as the efficient of filter paper is low and resistance is big, then belong to bad filtering material).So filter efficiency height and the little filter paper of resistance are to filter the target that industry is pursued always.
Along with the change of growth in the living standard and life style, people are more and more longer in the time of indoor life, and the quality of IAQ directly has influence on people's work and life.The breathing, the flue gas that contain 1. human bodies in the indoor air; 2. the formaldehyde that goes out of finishing material, articles for daily use slowly-releasing, ammonia, benzene etc.; 3. microorganism, virus, bacterium; 4. kitchen fume etc.The inferior air quality power that can warn is disperseed, and operating efficiency descends, and also can make the people produce symptoms such as headache, nauseating, fatigue, red swelling of the skin when serious, is referred to as " Cure of Sick Building Syndrome ".People are anxious for the abominable day by day room of improvement, working environment, improve life quality, and the most simple and easy to do way is exactly that indoor air is filtered, and this just needs the filter paper of efficient low-resistance, under the prerequisite of assurance filter efficiency enough ventilations are arranged.
Make the efficient low-resistance air paper at present under the situation that is difficult to break through on raw material and the technology,, just can realize the efficient low-resistance purpose if on the low material of filter efficiency, add high-pressure electrostatic.When on filter, adding the 6000V high-pressure electrostatic, form the high-voltage electrostatic field around the filter.The gas that has a grit will pass through the high-voltage electrostatic field during through filter.The high-pressure electrostatic field energy makes gas ionization, thereby makes dust particles, and charged grit is very easy to be adsorbed onto on the filter core.Like F6 rank (China Association of Refrigeration & Air-Conditioning Industry's standard; CRAA 430.3-2008) (filter efficiency 15%; Resistance 8Pa) filter paper adds high-pressure electrostatic after being made into filter; Filter efficiency can reach 99.9% and the resistance of air is constant basically, exceeds 6-10 doubly than the filter efficiency of the filter paper that does not add static, and can reduce the energy consumption of fan operation in the filtration system.Can also moment when adding the 6000V high-pressure electrostatic on the filter kill bacteria, virus and pollen, little micronic dust and bacterium to 0.1 μ m also can't escape.The common air filter paper made from glass fibre is difficult to the effect that reaches satisfied because of discharge current big (greater than 20 μ A) is difficult to add high-pressure electrostatic.
Summary of the invention
The present invention provides a kind of preparation method who powers up the glass fibre air paper of excellent performance, and leakage current was little after gained glass fibre air paper added high-pressure electrostatic.
The glass fibre air paper that the present invention also provides above-mentioned preparation method to obtain.
The said preparation method who powers up the glass fibre air paper of excellent performance does; Homogeneous mixture by the short chopping of alkali-free glass fibre of the polyester fiber of the alkali-free microfibrous glass cotton of 14～34 ° of SR, fineness 0.7～6.7dtex, long 3～12mm and diameter 7～11 μ m, length 6～12mm makes through wet processing, and said alkali-free microfibrous glass is cotton, the mass ratio of polyester fiber and the short chopping of alkali-free glass fibre is (12～18): (1～2): (5～10).
Wet processing is made glass fiber filter paper and is prior art, and is concrete, can adopt following steps: the microfibrous glass cotton is put in the water pulled an oar, add polyester fiber, glass chopped silk continuation making beating then, form uniform underflow material; With forming the uniform l Water Paper page or leaf of quality after the dilution of underflow material, moulding, the dehydration; After applying binding agent on the l Water Paper page or leaf, get into oven for drying, obtain air paper.The mass percent concentration of preferred said underflow material is 1.8-3.0%, and it is 1.8-3.0 ‰ that the underflow material is diluted with water to mass percent concentration.2～3 kinds of being preferably in cinnamic acrylic ester analog copolymer emulsion (abbreviation benzene emulsion), acrylic acid esters co-polymer emulsion (abbreviation pure-acrylic emulsion), the vinyl acetate-acrylic acid esters co-polymer emulsion (abbreviation acrylate and vinyl acetate emulsion) of said binding agent carry out the composite mixture that obtains; The molecular weight 18-21 ten thousand of said cinnamic acrylic ester analog copolymer emulsion; Vitrification point is 30～35 ℃, the molecular weight 21-22 ten thousand of acrylic acid esters co-polymer emulsion; Vitrification point is-2～-8 ℃, the molecular weight 16-17 ten thousand of vinyl acetate-acrylic acid esters co-polymer emulsion; Vitrification point is 15～20 ℃; The compound proportion of binding agent (mass ratio) is a cinnamic acrylic ester analog copolymer emulsion: the acrylic acid esters co-polymer emulsion: vinyl acetate-acrylic acid esters co-polymer emulsion=(0-1): (0-1): (0-1); The quality of binding agent is the 6-12% of glass fibre air paper in the gained glass fibre air paper, and said molecular weight is weight average molecular weight.
Slurries for the ease of fiber dispersion obtains mixing all contain the dispersing agent for fibre that mass percent is 0.3-0.7% in making beating and the thinned water.Said dispersing agent for fibre is preferably alkylamine guanidine ethoxy for the ethanol cationic surfactant, can use the commercially available prod of this area, like the dispersing agent for fibre Aerosol C-61 of the special company of U.S.'s cyanogen.
Electrical conductivity of water≤the 0.5mS/m that adopts in the said wet processing (25 ℃) is promptly than resistance>=0.2M Ω cm.Adopt the low water of electrical conductivity, can further reduce discharge (electric leakage) rate of gained filter paper under the high-pressure electrostatic environment.
The filter efficiency that gained of the present invention powers up the glass fibre air paper of excellent performance belongs to medium air filtration paper (F6-F9); Discharge (electric leakage) rate is little under the high-pressure electrostatic environment; The filter efficiency of filter paper improves greatly but change in resistance is little (for adding the enough little air paper of leakage current behind the high-pressure electrostatic; Filter efficiency is low before powering up, and resistance is also low; Powering up the back filter efficiency improves but change in resistance is little greatly).Filter efficiency and filter paper according to filter paper before the static that adds high pressure use time static that adds high pressure and leakage rate, and filter efficiency can reach 95%-99.99%.
The specific embodiment
Electrical conductivity of water≤0.5mS/m (25 ℃) that following examples adopt is promptly than resistance>=0.2M Ω cm; Dispersing agent for fibre is Aerosol C-61 (the special company of U.S.'s cyanogen); The vitrification point of benzene emulsion is 32 ℃, molecular weight 200,000 (Huzhou Tian Ge adhesive Co., Ltd, WD96 emulsion); The vitrification point of pure-acrylic emulsion is-8 ℃, molecular weight 220,000 (Jiangsu Richu Chemical Industry Co., Ltd, TRC-02 emulsion); The vitrification point of acrylate and vinyl acetate emulsion is 18 ℃, molecular weight 160,000 (Qingzhou shellfish specialization worker Co., Ltd, GK-09A acrylate and vinyl acetate emulsion), and said molecular weight is weight average molecular weight.
Embodiment 1
12kg microfibrous glass cotton (beating degree is 14 ° of SR) put in the hydrabrusher that adds water (added 0.3% dispersing agent for fibre in the water in advance); Pulled an oar 7 minutes; Add the organic fiber of 1kg 0.7dtex * 3mm specification, the glass chopped silk of 5kg7 μ m * 6mm specification etc. then and continue making beating 2 minutes, form uniform underflow material (concentration 1.8%); The underflow material is extracted into pump and has the joining in the stock tank of stirring, and being diluted to concentration is 1.8 ‰ uniform moulding slurries; The moulding slurry is pumped on the forming web, and the dehydration back forms the uniform l Water Paper page or leaf of quality on forming web; On the l Water Paper page or leaf, apply binding agent (benzene emulsion 1kg, pure-acrylic emulsion 1kg), get into oven for drying then, obtain air filter paper.Through detecting filter efficiency is 17.2%, resistance 9.5Pa, leakage current 2.9 μ A.
Embodiment 2
12kg microfibrous glass cotton (beating degree is 34 ° of SR) put in the hydrabrusher that adds water (added 0.7% dispersing agent for fibre in the water in advance); Pulled an oar 10 minutes; Add the organic fiber of 2kg 6.7dtex * 12mm specification, the glass chopped silk of 10kg7 μ m * 6mm specification etc. then and continue making beating 5 minutes, form uniform underflow material (concentration 2.4%); The underflow material is extracted into pump and has the joining in the stock tank of stirring, and being diluted to concentration is 2.4 ‰ uniform moulding slurries; The moulding slurry is pumped on the forming web, and the dehydration back forms the uniform l Water Paper page or leaf of quality on forming web; On the l Water Paper page or leaf, apply binding agent (benzene emulsion 1kg, pure-acrylic emulsion 0.5kg, acrylate and vinyl acetate emulsion 1kg), get into oven for drying then, obtain air filter paper.Through detecting filter efficiency is 85%, resistance 82Pa, leakage current 3.5 μ A.
Embodiment 3
18kg microfibrous glass cotton (beating degree is 14 ° of SR) put in the hydrabrusher that adds water (added 0.5% dispersing agent for fibre in the water in advance); Pulled an oar 8 minutes; Add the organic fiber of 2kg 0.7dtex * 3mm specification, the glass chopped silk of 10kg11 μ m * 12mm specification etc. then and continue making beating 4 minutes, form uniform underflow material (concentration 3.0%); The underflow material is extracted into pump and has the joining in the stock tank of stirring, and being diluted to concentration is 3.0 ‰ uniform moulding slurries; The moulding slurry is pumped on the forming web, and the dehydration back forms the uniform l Water Paper page or leaf of quality on forming web; On the l Water Paper page or leaf, apply binding agent (benzene emulsion 0.5kg, pure-acrylic emulsion 1kg, acrylate and vinyl acetate emulsion 1kg), get into oven for drying then, obtain air filter paper.Through detecting filter efficiency is 15.5%, resistance 7Pa, leakage current 3.1 μ A.
The various material rates of embodiment 4-8 are table as follows, and operating procedure and embodiment 1-3 are together.
Data unit in the table: kg
Claims (8)
1. preparation method who powers up the glass fibre air paper of excellent performance; It is characterized in that; Homogeneous mixture by the short chopping of alkali-free glass fibre of the polyester fiber of the alkali-free microfibrous glass cotton of 14～34 ° of SR, fineness 0.7～6.7dtex, long 3～12mm and diameter 7～11 μ m, length 6～12mm makes through wet processing, and said alkali-free microfibrous glass is cotton, the mass ratio of polyester fiber and the short chopping of alkali-free glass fibre is (12～18): (1～2): (5～10).
2. the preparation method who powers up the glass fibre air paper of excellent performance as claimed in claim 1 is characterized in that, the microfibrous glass cotton is put in the water pulled an oar, and adds polyester fiber, glass chopped silk continuation making beating then, forms uniform underflow material; With forming the uniform l Water Paper page or leaf of quality after the dilution of underflow material, moulding, the dehydration; After applying binding agent on the l Water Paper page or leaf, get into oven for drying, obtain the glass fibre air paper.
3. the preparation method who powers up the glass fibre air paper of excellent performance as claimed in claim 2 is characterized in that, all contains the dispersing agent for fibre that mass percent is 0.3-0.7% in making beating and the thinned water.
4. like claim 2 or the 3 described preparation methods that power up the glass fibre air paper of excellent performance; It is characterized in that; Said binding agent is that 2～3 kinds in cinnamic acrylic ester analog copolymer emulsion, acrylic acid esters co-polymer emulsion, the vinyl acetate-acrylic acid esters co-polymer emulsion carry out the composite mixture that obtains; The molecular weight 18-21 ten thousand of said cinnamic acrylic ester analog copolymer emulsion; Vitrification point is 30～35 ℃, the molecular weight 21-22 ten thousand of acrylic acid esters co-polymer emulsion; Vitrification point is-2～-8 ℃, the molecular weight 16-17 ten thousand of vinyl acetate-acrylic acid esters co-polymer emulsion; Vitrification point is 15～20 ℃; The compound proportion of binding agent (mass ratio) is a cinnamic acrylic ester analog copolymer emulsion: the acrylic acid esters co-polymer emulsion: vinyl acetate-acrylic acid esters co-polymer emulsion=(0-1): (0-1): (0-1), the quality of binding agent is the 6-12% of glass fibre air paper in the gained glass fibre air paper, and said molecular weight is weight average molecular weight.
5. like each described preparation method who powers up the glass fibre air paper of excellent performance among the claim 2-4; It is characterized in that; The mass percent concentration of said underflow material is 1.8-3.0%, and it is 1.8-3.0 ‰ that the underflow material is diluted with water to mass percent concentration.
6. like each described preparation method who powers up the glass fibre air paper of excellent performance among the claim 2-4, it is characterized in that said dispersing agent for fibre is that alkylamine guanidine ethoxy is for the ethanol cationic surfactant.
7. like each described preparation method who powers up the glass fibre air paper of excellent performance among the claim 1-6, it is characterized in that the electrical conductivity of water≤0.5mS/m that adopts in the said wet processing (25 ℃).
8. each preparation method's gained powers up the glass fibre air paper of excellent performance among the claim 1-7.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103332922A (en) * | 2013-07-17 | 2013-10-02 | 江苏常科新材料有限公司 | Heat preservation core material for insulation and method for preparing core material |
| CN103556544A (en) * | 2013-11-11 | 2014-02-05 | 重庆再升科技股份有限公司 | High flame retardancy glass fiber air filtering paper and preparation method thereof |
| CN106245422A (en) * | 2016-08-30 | 2016-12-21 | 苏州华泰空气过滤器有限公司 | A kind of preparation method of ceramic fibre filter paper |
| CN107653736A (en) * | 2017-09-26 | 2018-02-02 | 成都新柯力化工科技有限公司 | A kind of high strength glass fiber air purification filter paper and preparation method thereof |
| CN109594421A (en) * | 2018-12-05 | 2019-04-09 | 中国制浆造纸研究院有限公司 | A kind of Novel flue gas conventional chemical detection filter paper and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101349031A (en) * | 2008-08-28 | 2009-01-21 | 中材科技股份有限公司 | Antibiotic air filter paper and preparation method thereof |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101349031A (en) * | 2008-08-28 | 2009-01-21 | 中材科技股份有限公司 | Antibiotic air filter paper and preparation method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103332922A (en) * | 2013-07-17 | 2013-10-02 | 江苏常科新材料有限公司 | Heat preservation core material for insulation and method for preparing core material |
| CN103556544A (en) * | 2013-11-11 | 2014-02-05 | 重庆再升科技股份有限公司 | High flame retardancy glass fiber air filtering paper and preparation method thereof |
| CN103556544B (en) * | 2013-11-11 | 2016-03-30 | 重庆再升科技股份有限公司 | A kind of high flame retardant glass fibre air filter paper and preparation method thereof |
| CN106245422A (en) * | 2016-08-30 | 2016-12-21 | 苏州华泰空气过滤器有限公司 | A kind of preparation method of ceramic fibre filter paper |
| CN107653736A (en) * | 2017-09-26 | 2018-02-02 | 成都新柯力化工科技有限公司 | A kind of high strength glass fiber air purification filter paper and preparation method thereof |
| CN107653736B (en) * | 2017-09-26 | 2020-10-13 | 枣庄市东昌玻纤实业有限公司 | High-strength glass fiber air purification filter paper and preparation method thereof |
| CN109594421A (en) * | 2018-12-05 | 2019-04-09 | 中国制浆造纸研究院有限公司 | A kind of Novel flue gas conventional chemical detection filter paper and preparation method thereof |
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| CN102517977B (en) | 2014-01-29 |
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Effective date of registration: 20200220 Address after: 210000 No.30, Andri, Yuhua West Road, Nanjing, Jiangsu Province Patentee after: NANJING FIBERGLASS RESEARCH & DESIGN INSTITUTE Co.,Ltd. Address before: Jiangning District of Nanjing City, Jiangsu province 211100 Jiangning Science Park Tong Road No. 99 Patentee before: Sinoma Science & Technology Co.,Ltd. |
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Effective date of registration: 20221021 Address after: No. 103, Longjin Road, Economic Development Zone, Sucheng District, Suqian City, Jiangsu Province, 223814 Patentee after: CSGC (Suqian) New Materials Co.,Ltd. Address before: No.30, anhli, Yuhua West Road, Nanjing, Jiangsu Province, 210000 Patentee before: NANJING FIBERGLASS RESEARCH & DESIGN INSTITUTE Co.,Ltd. |