CN104645716B - Novel antistatic filtering material of a kind of base cloth plating and preparation method thereof - Google Patents
Novel antistatic filtering material of a kind of base cloth plating and preparation method thereof Download PDFInfo
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- CN104645716B CN104645716B CN201510060478.8A CN201510060478A CN104645716B CN 104645716 B CN104645716 B CN 104645716B CN 201510060478 A CN201510060478 A CN 201510060478A CN 104645716 B CN104645716 B CN 104645716B
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- filtering material
- base cloth
- vacuum
- calendering
- antistatic
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Abstract
The invention discloses novel antistatic filtering material of a kind of base cloth plating and preparation method thereof, this novel antistatic filtering material is by being deposited on the filtering material base cloth for preparing under vacuum with atomic form by metal, then base cloth is sandwiched in complete up and down between two layer web, through acupuncture, singe, thermal finalization and calendering preparation and obtain.Novel antistatic filtering material antioxygenic property and the antistatic property of the base cloth plating that the present invention obtains are superior, and the filtering accuracy of filtrate improves, and service life increases.
Description
Technical field
The present invention relates to a kind of novel antistatic filtering material and preparation method thereof, belong to fabrics for industrial use field.
Background technology
In filtering material use procedure, a large amount of dusts of discharging impact the dust-collecting face of filtering material and produce friction, because they are different to the attraction of electronics, make to there occurs electro transfer between object, raw material fiber due to filtering material is all the good insulator of insulating properties, therefore the electric charge produced cannot leak thus rests on the dust-collecting face of filtering material and form electrostatic in inactive state.Although electrostatic electricity is little, easily there is discharge spark because its voltage is very high, when the concentration of mist, dust in filter bag is comparatively large, when discharge spark energy is also large, just may be set off an explosion or fire by electrostatic spark.
General filtering material does not possess anti-static function, so anlistatig most effectual way is exactly by all means by derivation that electrostatic charge is very fast.The antistatic processing method that current filtering material is conventional has following several:
Adding conductive filament when preparing non-woven filter material at a certain distance at Ji Bunei, as in publication CN102337622.A, adding the carbon black at 26-1500 dawn at interval of 2.7-3.5cm or electrostatic eliminated by graphite fibre by filtrate base cloth is radial.
In raw material, a certain amount of conductive fiber or stainless steel fibre is mixed into, as in publication CN94225873.8, by being mixed into NACF in raw material or metallic conduction silk fiber eliminates electrostatic when preparing non-woven filter material.
Antistatic treatment is carried out at filtering material dust-collecting face layer overlay conducting fibrous web or employing surfactant, as in publication CN102995294.A, the ultra fine conductive fibers net obtained by electrostatic spinning spinning head being extruded stretching is superimposed upon fibre web surface and acupuncture obtains antistatic filtering material; In publication in CN103276532.A, by a kind of glue being furnished with nanoscale graphite powder of filtrate element felt dipping is prepared into antistatic filtering material.
Although it is simple to add conductive filament processing technology at Ji Bunei, because filtering material surface fiber is the good insulator of insulating properties and conductive filament is only mixed between weft yams, thus cause the antistatic property impact of conductive base cloth on filtering material less; Although add conductive fiber or stainless steel fibre can make filtering material possess good antistatic property in raw material, but holding difference when conductive fiber or stainless steel fibre and general fibre blending and acupuncture time easily damage is caused to pricker because performance is more crisp, add technology difficulty and processing cost; Although it is superior that filtering material dust-collecting face layer overlay conducting fibrous web or employing surfactant carry out antistatic treatment antistatic property, but after permanent dust impacts, surface layer ultra fine conducting fibrous web easily comes off, antistatic surface agent conductive effect also can sharply reduce thereupon, and the life-span of antistatic filtering material also reduces thereupon.
Summary of the invention
In order to solve above-mentioned deficiency, the invention provides novel antistatic filtering material of a kind of base cloth plating and preparation method thereof, one deck conductive metal film is formed by under vacuum metal being deposited on atomic form the filtering material base cloth tow sides prepared, then base cloth is sandwiched in complete up and down between two layer web, through acupuncture, singe, thermal finalization and calendering preparation and obtain.Fiber base cloth optional PET base cloth, PPS base cloth, P84 base cloth, PI base cloth, acrylic base cloth or PTFE base cloth etc. that above-mentioned antistatic filtering material is used, the present invention's preferred PET base cloth.
In one deck conductive metal film described in novel antistatic filtering material of a kind of base cloth plating of the present invention, metal is non-oxidizability and the good metal of electric conductivity.
Above-mentioned non-oxidizability and the optional nickel of the good metal of electric conductivity, tungsten, gold, silver, copper, palladium etc., preferable alloy nickel of the present invention.
One deck conducting metal film thickness described in novel antistatic filtering material of a kind of base cloth plating of the present invention is 0.03-0.05mm.The preparation method of the novel antistatic filtering material of a kind of base cloth plating of the present invention is for carrying out bombardment processing to filtering material base cloth tow sides under vacuum and metallic atom deposition processes is prepared into antistatic base cloth, then base cloth is sandwiched between the fleece completed, through acupuncture, singe, thermal finalization and calendering prepare antistatic filtering material.
When the preparation method of the novel antistatic filtering material of a kind of base cloth plating of the present invention carries out bombardment processing to base cloth, vacuum is 120-150Pa, and treatment temperature is 60-80 DEG C, and the speed of service of filtering material is 2.5-3m/min.
When the preparation method of the novel antistatic filtering material of a kind of base cloth plating of the present invention carries out metallic atom deposition processes to base cloth, vacuum is 0.8-1Pa, and treatment temperature is 120-150 DEG C, and the speed of service of filtering material is 2.5-3m/min.
The thermal finalization of the preparation method of the novel antistatic filtering material of a kind of base cloth plating of the present invention, to singe and calen-dering process is: thermal finalization speed 4-6m/min, heat setting temperature 215-280 DEG C; Singe flame air pressure 5.5-13mbar, and singe speed 30-40m/min; Calendering speed 6-7m/min, pressure nip 1.6-2.0mm, roll temperature 180-250 DEG C in calendering, calendering lower roll temperatures 200-270 DEG C.
Above-mentioned thermal finalization, to singe and calendering postfinishing process improves the dimensional stability of filtering material, wrinkle resistance and profile pattern.The novel antistatic filtering material of a kind of base cloth plating of the present invention possesses good antistatic property, and processing technology is simple, processing cost is low.
The novel antistatic filtering material of a kind of base cloth plating of the present invention, measure according to GB/T12703.4-2010, its sheet resistance is lower than 10
7Ω, the surface resistivity technical requirement according to filtrate is assessed as A grade.
Accompanying drawing explanation
Fig. 1 is preparation technology's flow chart of the present invention.
Fig. 2 is structural representation of the present invention.
In accompanying drawing, 1-fibrage; 2-base cloth; 3-conductive metal film.
Detailed description of the invention
The performance test methods described in embodiment with following in this description is as follows.
Testing standard according to GB/T12703.4-2010 sheet resistance is tested.Concrete grammar is, resists the DC voltage that electro static filtering material applies regulation, the resistance between two measurement electrode measuring filter material surface after the electrochemical time of 1min under constant temperature and pressure constant humidity condition, respectively vertical cross measure 5 times, then averages.
Below in conjunction with embodiment, the present invention will be further described, but protection scope of the present invention is not limited only to this.
Embodiment 1
Being run with the speed of 2.5m/min by PET base cloth enters in vacuum chamber, carrying out temperature in indoor, initial vacuum to dust-collecting face is 60 DEG C, vacuum is the bombardment processing of 110Pa, then in final vacuum indoor, the nickel metallic atom deposition processes that temperature is 130 DEG C, vacuum is 0.8Pa is carried out to the PET base cloth through bombardment processing, be prepared into antistatic PET base cloth.Be sandwiched in by PET base cloth between the upper and lower two-layer PET net completed and be prepared into Nomex through pinprick reinforcement, carry out thermal finalization to PET Nomex, singe and the process of calendering postfinishing process, technological parameter is: thermal finalization speed 6m/min, heat setting temperature 215 DEG C; Singe flame air pressure 7.0mbar, and singe speed 30m/min; Calendering speed 6m/min, pressure nip 1.6mm, roll temperature 190 DEG C in calendering, calendering lower roll temperatures 210 DEG C.Recording antistatic filtering material sheet resistance is 1.38 × 10
6Ω.
Embodiment 2
Being run with the speed of 2.8m/min by PET base cloth enters in vacuum chamber, indoorly in initial vacuum dust-collecting face is carried out to temperature is 70 DEG C, vacuum is the bombardment processing of 130Pa, then in final vacuum indoor, the nickel metallic atom deposition processes that temperature is 140 DEG C, vacuum is 0.9Pa is carried out to the PET base cloth through bombardment processing, be prepared into antistatic PET base cloth.Be sandwiched in by PET base cloth between the upper and lower two-layer PET net completed and be prepared into Nomex through pinprick reinforcement, carry out thermal finalization to PET Nomex, singe and the process of calendering postfinishing process, technological parameter is: thermal finalization speed 6m/min, heat setting temperature 215 DEG C; Singe flame air pressure 7.3mbar, and singe speed 35m/min; Calendering speed 6m/min, pressure nip 1.65mm, roll temperature 200 DEG C in calendering, calendering lower roll temperatures 220 DEG C.Recording antistatic filtering material sheet resistance is 4.73 × 10
6Ω.
Embodiment 3
Being run with the speed of 3m/min by PET base cloth enters in vacuum chamber, indoorly in initial vacuum dust-collecting face is carried out to temperature is 80 DEG C, vacuum is the bombardment processing of 150Pa, then in final vacuum indoor, the nickel metallic atom deposition processes that temperature is 150 DEG C, vacuum is 1Pa is carried out to the PET base cloth through bombardment processing, be prepared into antistatic PET base cloth.Be sandwiched in by PET base cloth between the upper and lower two-layer PET net completed and be prepared into Nomex through pinprick reinforcement, carry out thermal finalization to PET Nomex, singe and the process of calendering postfinishing process, technological parameter is: thermal finalization speed 6m/min, heat setting temperature 215 DEG C; Singe flame air pressure 7.5mbar, and singe speed 40m/min; Calendering speed 6m/min, pressure nip 1.7mm, roll temperature 210 DEG C in calendering, calendering lower roll temperatures 230 DEG C.Recording antistatic filtering material sheet resistance is 6.32 × 10
6Ω.
Claims (2)
1. the preparation method of the novel antistatic filtering material of a base cloth plating, it is characterized in that: the method comprises carries out bombardment processing to filtering material base cloth tow sides and metallic atom deposition processes is prepared into antistatic base cloth under vacuum, then base cloth is sandwiched between the fleece completed, through acupuncture, singe, thermal finalization and calendering prepare antistatic filtering material;
When carrying out bombardment processing to filtering material base cloth tow sides, vacuum is 120-150Pa, and treatment temperature is 60-80 DEG C, and the speed of service of filtering material is 2.5-3m/min;
When carrying out metallic atom deposition processes to filtering material base cloth tow sides, vacuum is 0.8-1Pa, and treatment temperature is 120-150 DEG C, and the speed of service of filtering material is 2.5-3m/min;
Described vacuum condition is provided with room, initial vacuum and final vacuum room, carries out tow sides and carries out bombardment processing, carry out metallic atom deposition processes in final vacuum room in room, initial vacuum.
2. the preparation method of the novel antistatic filtering material of a kind of base cloth plating according to claim 1, is characterized in that: thermal finalization is carried out to filtering material, singe and calendering Final finishing time, thermal finalization speed 4-6m/min, heat setting temperature 215-280 DEG C; Singe flame air pressure 5.5-13mbar, and singe speed 30-40m/min; Calendering speed 6-7m/min, pressure nip 1.6-2.0mm, roll temperature 180-250 DEG C in calendering, calendering lower roll temperatures 200-270 DEG C.
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| CN201510060478.8A CN104645716B (en) | 2015-02-05 | 2015-02-05 | Novel antistatic filtering material of a kind of base cloth plating and preparation method thereof |
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| CN104645716B true CN104645716B (en) | 2016-03-23 |
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| CN106541592A (en) * | 2016-11-03 | 2017-03-29 | 安徽省利特环保技术有限公司 | A kind of preparation technology of haze window screening with polymer compound film material |
| CN110446765A (en) * | 2017-07-25 | 2019-11-12 | 积水化学工业株式会社 | Semiconductor protection adhesive tape and processing method for semiconductor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE2826953A1 (en) * | 1978-06-20 | 1980-01-10 | Bayer Ag | Stable antistatic air filter - comprises needled felt made of acrylonitrile! polymer fibres with metal conducting coating |
| JP3300529B2 (en) * | 1994-03-31 | 2002-07-08 | 日鉄鉱業株式会社 | Antistatic filtering material and method for producing the same |
| DE10059050C2 (en) * | 2000-11-28 | 2003-02-27 | Freudenberg Carl Kg | Process for producing a triboelectrically charged nonwoven |
| CN102505463A (en) * | 2011-11-09 | 2012-06-20 | 天诺光电材料股份有限公司 | Method for preparing silver-plated fiber fabric |
| CN103191602A (en) * | 2013-04-08 | 2013-07-10 | 南京际华三五二一环保科技有限公司 | Anti-static polytetrafluoroethylene filter bag and preparation method thereof |
| CN103272435A (en) * | 2013-06-24 | 2013-09-04 | 南京际华三五二一环保科技有限公司 | Method for preparing antistatic filter material with graphite powder |
| CN103405965B (en) * | 2013-08-19 | 2015-08-12 | 东华大学 | Woven wire strengthens the preparation method of polyphenylene sulfide high-temperature resistant water thorn filtrate |
| CN104289038B (en) * | 2014-09-15 | 2016-02-10 | 天诺光电材料股份有限公司 | A kind of normal temperature filtering material of non-woven fabricbase cloth metalized and preparation |
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