CN104289039A - Filtering material for metallization of non-woven base fabrics for medium/high temperature and preparation method of filtering material - Google Patents
Filtering material for metallization of non-woven base fabrics for medium/high temperature and preparation method of filtering material Download PDFInfo
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- CN104289039A CN104289039A CN201410468584.5A CN201410468584A CN104289039A CN 104289039 A CN104289039 A CN 104289039A CN 201410468584 A CN201410468584 A CN 201410468584A CN 104289039 A CN104289039 A CN 104289039A
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- filtering material
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Abstract
The invention provides a filtering material for the metallization of non-woven base fabrics for medium/high temperature and a preparation method of the filtering material. The filtering material comprises a non-woven fabric, namely a base fabric, and a surface layer, wherein the non-woven base fabric and the surface layer are fixed through needling, and both surfaces of the non-woven base fabric are coated with two or more layers of metal. The preparation method of the filtering material comprises the procedures of carrying out baking, physical deoiling, pretreatment and metal layer coating on the non-woven base fabric, needling with a non-woven surface layer raw material and typing. The anti-electrostatic filtering material prepared by the preparation method has the advantages of good static electricity preventing property, good uniformity, high-temperature resistance, good binding force and the like, and can be applied to the medium-/high-temperature dust removal of the fields of garbage incineration, thermal power generation, cement, iron and steel, chemical industry, metallurgy and the like.
Description
Technical field
The invention belongs to fabrics for industrial use field, particularly relate to filtering material and the preparation method of the non-woven fabricbase cloth metalized of a kind of middle high temperature.
Background technology
In the industrial circles such as petrochemical industry, smelting iron and steel, coal-burning power plant, waste incineration, cement, the flue dust that process portion produces has the features such as flammable, explosive, high temperature, use process in due to dust and dust, rubbing between dust and filtrate easily produces a large amount of electrostatic, as can not be in time electric charge eliminated, fire or explosion accident will be produced.The flue dust of high temperature is then had higher requirement to the use of filtering material.Along with science and technology and the development of modern crafts, people also more and more pay attention to the aspect such as air quality, personal protection, therefore, need to use high-temperature-resistant antistatic filtering material to process flue dust.Existing antistatic filtering material generally adopts following 3 kinds of methods, (1) chemical fibre and stainless steel fibre mixing acupuncture, and (2) chemical fibre and conductive fiber mixing acupuncture, (3) add antistatic agent in filtering material.Wherein, (1) there is the shortcomings such as production procedure length, complex process, lack of homogeneity in method; (2), (3) there is the shortcomings such as antistatic performance instability, decay is fast, sheet resistance is bigger than normal in method.
The domestic and international research about antistatic filtering material is less at present, patent of invention (201310119167.5) provides a kind of Anti-static polytetrafluoroethylfilter filter bag and preparation method thereof, the method base cloth twists Split Down by polytetrafluoroethylfilament filament and stainless steel fibre, weave mutually form by warp, latitude, be coated with nonwoven layers at the upper and lower surface of Ji Bu, its electrostatic-proof function layer is different from the present invention.Utility model patent (201120341764.9) provides a kind of antistatic blending filter felt, what this filter felt comprised conductive fiber and the blending of polyacrylonitrile fibre cross lapping meets knoisphere, the base cloth layer of polyacrylonitrile fibre long filament braiding and the bottom of polyacrylonitrile fibre cross lapping, and its electrostatic-proof function layer is different from the present invention.
Summary of the invention
The present invention is intended to overcome the deficiencies in the prior art, object is to provide filtering material and the preparation method of the non-woven fabricbase cloth metalized of middle high temperature that a kind of static electricity resistance is good, uniformity is good, adhesion is good, simple, easy to operate, the economic environmental protection of the method technique.
In order to reach one of above-mentioned purpose, the present invention realizes by following technical measures:
A kind of middle high temperature filtering material of non-woven fabricbase cloth metalized, comprise non-woven fabricbase cloth and top layer, non-woven fabricbase cloth and top layer are by pinprick reinforcement, and high-temperature fibre non-weaving cloth selected by described non-weaving cloth, the two-layer or multiple layer metal of the two-sided plating of described non-woven fabricbase cloth.
One of the object of the invention also realizes by following technical measures:
Described metal level be nickel, silver, titanium, chromium one or more.
Described metal level thickness in monolayer is 0.05 ~ 1 μm.
Described non-woven fabricbase cloth and top layer be aramid fiber, polytetrafluoroethylene fibre, polyimide fiber, polyphenylene sulfide fibre, glass fibre, basalt fibre one or more.
Two of the object of the invention realizes by following technical measures:
A middle high temperature preparation method for the filtering material of non-woven fabricbase cloth metalized, carries out as follows:
(1) non-woven for high-temperature fibre fabricbase is distributed in drying and processing 24 ~ 48h under 80 ~ 120 DEG C of conditions, to reduce its water content;
(2) by described for step (1) non-woven fabricbase cloth physical oil-removing 30 ~ 60min under the ultrasound field effect of 20 ~ 90kHz, to remove the impurity such as the oil stain on its surface;
(3) by described for step (2) non-woven fabricbase cloth pre-treatment 20 ~ 60min, to improve the adhesion of itself and plating metal;
(4) by two-layer for the two-sided plating of described for step (3) non-woven fabricbase cloth or multiple layer metal;
(5) non-weaving cloth top layer raw material is added through step Ji Bu (4), acupuncture, sizing through mixing, shredding, combing, one-tenth net, centre, be prepared into the antistatic filtering material of middle high temperature by non-woven fabricbase cloth metalized.
Two of the object of the invention also realizes by following technical measures:
Step (3) described pre-treatment is plasma treatment, ion gun process or sided corona treatment.
Step (4) described plating is vacuum evaporation or physical vapor deposition.
The resistance of described antistatic filtering material base cloth is 1 × 10
2~ 10
3Ω.
The present invention compared with prior art tool has the following advantages:
(1) the antistatic filtering material of prior art generally adopts chemical fibre to form with stainless steel fibre, conductive fiber mixing acupuncture, the method production procedure length, complex process, operability is poor, sheet resistance is bigger than normal, lack of homogeneity, the present invention is two-layer or multiple layer metal in the two-sided plating of non-woven fabricbase cloth, accurately can control the thickness of metal level, when reaching like product resistivity, required metal is less, improves the uniformity of antistatic filtering material functional layer.
(2) the antistatic filtering material of prior art plays anti-static electrification by the conductive fiber of mixing, complex process and have damage to acupuncture apparatus, the present invention passes through pretreatment technology, improve the adhesion of non-woven fabricbase cloth and plating metal, improve the service life of antistatic filtering material functional layer.
(3) the present invention selects high-temperature fibre non-weaving cloth, and at non-woven fabricbase cloth plating metal level, meets the instructions for use of antistatic filtering material under middle hot conditions, widened the application of antistatic filtering material.
The filtering material of the non-woven fabricbase cloth metalized of middle high temperature prepared by the inventive method, there is the advantages such as static electricity resistance is good, uniformity is good, high temperature resistant, adhesion is good, can be used for the middle high-temperature bag dust removal in the fields such as waste incineration, thermal power generation, cement, iron and steel, chemical industry, metallurgy.Simple, safe and reliable, easy to operate, the economic environmental protection of the inventive method technique, is easy to scale batch production.
Detailed description of the invention
Following examples are that middle high temperature antistatic filtering material is preferably filled a prescription; these non-limiting implementation of filling a prescription; just for illustrating the present invention, the formula that those skilled in the art can filter out according to thinking of the present invention and proportioning of selecting materials completely is protection scope of the present invention.
Embodiment 1
(1) fiberglass non-woven fabricbase is distributed in drying and processing 24h under 80 DEG C of conditions;
(2) under the fiberglass non-woven fabricbase of oven dry being distributed in the ultrasound field effect of 90kHz, carry out physical oil-removing 30min;
(3) carry out plasma pre-treatment 20min by through step fiberglass non-woven fabricbase cloth (2);
(4) adopt vacuum deposition method, by through step fiberglass non-woven fabricbase cloth (3), two-sided plating double layer of metal nickel, individual layer plating layer thickness 0.05 μm.After testing, the resistance of this antistatic filtering material base cloth is 1 × 10
3Ω;
(5) fiberglass non-woven cloth top layer raw material is added through operations such as step Ji Bu (4), acupuncture, sizings through mixing, shredding, combing, one-tenth net, centre, be prepared into antistatic filtering material.
Embodiment 2:
(1) non-woven for aramid fiber fabricbase is distributed in drying and processing 36h under 120 DEG C of conditions;
(2) under non-woven for the aramid fiber of oven dry fabricbase being distributed in the ultrasound field effect of 40kHz, carry out physical oil-removing 50min;
(3) carry out corona pre-treatment 60min by through the non-woven fabricbase cloth of step aramid fiber (2);
(4) adopt vacuum deposition method, by through the non-woven fabricbase cloth of step aramid fiber (3), two-sided plating layer of metal silver, layer of metal titanium, layer of metal nickel, individual layer plating layer thickness 1 μm.After testing, the resistance of this antistatic filtering material base cloth is 1.2 × 10
2Ω.
(5) polytetrafluoroethylfiber fiber non-woven cloth top layer raw material is added through operations such as step Ji Bu (4), acupuncture, sizings through mixing, shredding, combing, one-tenth net, centre, be prepared into antistatic filtering material.
Embodiment 3:
(1) polyimide fiber is mixed non-woven fabricbase with polyphenylene sulfide fibre and be distributed in drying and processing 48h under 100 DEG C of conditions;
(2) the polyimide fiber of oven dry is mixed with polyphenylene sulfide fibre under non-woven fabricbase is distributed in the ultrasound field effect of 20kHz and carry out physical oil-removing 60min;
(3) carry out ion gun pre-treatment 30min by mixing non-woven fabricbase cloth through step polyimide fiber (2) with polyphenylene sulfide fibre;
(4) adopt physical gas-phase deposite method, mix the two-sided plating layer of metal silver of non-woven fabricbase cloth with polyphenylene sulfide fibre, layer of metal nickel, individual layer plating layer thickness 0.1 μm by through step polyimide fiber (3).After testing, the resistance of this antistatic filtering material base cloth is 0.3 × 10
3Ω.
(5) fiberglass non-woven cloth top layer raw material is added through mixing, shredding, combing, one-tenth net, centre the operation such as Ji Bu, acupuncture, sizing (4) processed through step, be prepared into antistatic filtering material.
Embodiment 4:
(1) non-woven for basalt fibre fabricbase is distributed in 90 DEG C of drying and processing 24h;
(2) under non-woven for the basalt fibre of oven dry fabricbase being distributed in the ultrasound field effect of 70kHz, carry out physical oil-removing 30min;
(3) carry out plasma pre-treatment 20min by through the non-woven fabricbase cloth of step basalt fibre (2);
(4) adopt vacuum deposition method, by through the non-woven fabricbase cloth of step basalt fibre (3), two-sided plating layer of metal titanium, individual layer plating layer thickness 0.05 μm.After testing, the resistance of this antistatic filtering material base cloth is 0.8 × 10
3Ω.
(5) polyimide fiber non-weaving cloth top layer raw material is added through mixing, shredding, combing, one-tenth net, centre the operation such as Ji Bu, acupuncture, sizing (4) processed through step, be prepared into antistatic filtering material.
Embodiment 5:
(1) drying and processing 48h is carried out in polytetrafluoroethylfiber fiber non-woven cloth top layer under 100 DEG C of conditions;
(2) physical oil-removing 60min is carried out in the polytetrafluoroethylfiber fiber non-woven cloth top layer of oven dry under the ultrasound field effect of 20kHz;
(3) carry out corona pre-treatment 60min by through step polytetrafluoroethylfiber fiber non-woven cloth top layer (2);
(4) adopt vacuum deposition method, by through step polytetrafluoroethylfiber fiber non-woven fabricbase cloth (3), two-sided plating layer of metal chromium, layer of metal titanium and layer of metal silver, individual layer plating layer thickness 1 μm.After testing, the resistance of this antistatic filtering material base cloth is 1.1 × 10
2Ω.
(5) aramid fiber non-weaving cloth top layer raw material is added through mixing, shredding, combing, one-tenth net, centre the operation such as Ji Bu, acupuncture, sizing (4) processed through step, be prepared into antistatic filtering material.
Claims (8)
1. the high temperature filtering material of non-woven fabricbase cloth metalized in a kind, comprise non-woven fabricbase cloth and top layer, pinprick reinforcement is passed through on non-woven fabricbase cloth and top layer, it is characterized in that, high-temperature fibre non-weaving cloth selected by described non-weaving cloth, the two-layer or multiple layer metal of the two-sided plating of described non-woven fabricbase cloth.
2. a kind of middle high temperature as claimed in claim 1 filtering material of non-woven fabricbase cloth metalized, is characterized in that, described metal level be nickel, silver, titanium, chromium one or more.
3. a kind of middle high temperature as claimed in claim 1 or 2 filtering material of non-woven fabricbase cloth metalized, it is characterized in that, described metal level thickness in monolayer is 0.05 ~ 1 μm.
4. a kind of middle high temperature as claimed in claim 1 filtering material of non-woven fabricbase cloth metalized, it is characterized in that, described non-woven fabricbase cloth and top layer be aramid fiber, polytetrafluoroethylene fibre, polyimide fiber, polyphenylene sulfide fibre, glass fibre, basalt fibre one or more.
5. prepare as arbitrary in claim 1-4 as described in a high temperature method for the filtering material of non-woven fabricbase cloth metalized, it is characterized in that, carry out as follows:
(1) non-woven for high-temperature fibre fabricbase is distributed in drying and processing 24 ~ 48h under 80 ~ 120 DEG C of conditions;
(2) by described for step (1) non-woven fabricbase cloth physical oil-removing 30 ~ 60min under the ultrasound field effect of 20 ~ 90kHz;
(3) by described for step (2) non-woven fabricbase cloth pre-treatment 20 ~ 60min;
(4) by two-layer for the two-sided plating of described for step (3) non-woven fabricbase cloth or multiple layer metal;
(5) non-weaving cloth top layer raw material adds through step through mixing, shredding, combing, one-tenth net, centre
ji Bu, acupuncture, sizing, be prepared into the antistatic filtering material of middle high temperature by non-woven fabricbase cloth metalized.
6. the high temperature method of the filtering material of non-woven fabricbase cloth metalized in preparing as claimed in claim 5, it is characterized in that, step (3) described pre-treatment is plasma treatment, ion gun process or sided corona treatment.
7. the high temperature method of the filtering material of non-woven fabricbase cloth metalized in preparing as claimed in claim 5, it is characterized in that, step (4) described plating is vacuum evaporation or physical vapor deposition.
8. the high temperature method of the filtering material of non-woven fabricbase cloth metalized in preparing as claimed in claim 5, it is characterized in that, the resistance of described antistatic filtering material base cloth is 1 × 10
2~ 10
3Ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410468584.5A CN104289039B (en) | 2014-09-15 | 2014-09-15 | A kind of middle high temperature filtering material of non-woven fabricbase cloth metalized and preparation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410468584.5A CN104289039B (en) | 2014-09-15 | 2014-09-15 | A kind of middle high temperature filtering material of non-woven fabricbase cloth metalized and preparation |
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| CN104289039A true CN104289039A (en) | 2015-01-21 |
| CN104289039B CN104289039B (en) | 2016-02-10 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63303726A (en) * | 1987-06-05 | 1988-12-12 | Asahi Kasei Porifuretsukusu Kk | Laminated film |
| CN1170370A (en) * | 1995-10-23 | 1998-01-14 | W·L·戈尔及同仁股份有限公司 | Conductive filter laminate |
| US20070028767A1 (en) * | 2005-08-03 | 2007-02-08 | Hollingsworth & Vose Company | Filter media with improved conductivity |
| CN101349007A (en) * | 2008-09-05 | 2009-01-21 | 山东天诺光电材料有限公司 | Conducting fiber and preparation method thereof |
| CN202387308U (en) * | 2011-12-14 | 2012-08-22 | 厦门三维丝环保股份有限公司 | Antistatic aramid fiber filter material |
-
2014
- 2014-09-15 CN CN201410468584.5A patent/CN104289039B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63303726A (en) * | 1987-06-05 | 1988-12-12 | Asahi Kasei Porifuretsukusu Kk | Laminated film |
| CN1170370A (en) * | 1995-10-23 | 1998-01-14 | W·L·戈尔及同仁股份有限公司 | Conductive filter laminate |
| US20070028767A1 (en) * | 2005-08-03 | 2007-02-08 | Hollingsworth & Vose Company | Filter media with improved conductivity |
| CN101349007A (en) * | 2008-09-05 | 2009-01-21 | 山东天诺光电材料有限公司 | Conducting fiber and preparation method thereof |
| CN202387308U (en) * | 2011-12-14 | 2012-08-22 | 厦门三维丝环保股份有限公司 | Antistatic aramid fiber filter material |
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