CN106362483A - Polypropylene electret air filtering material with flame retardant performance and preparation method thereof - Google Patents
Polypropylene electret air filtering material with flame retardant performance and preparation method thereof Download PDFInfo
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- CN106362483A CN106362483A CN201610803164.7A CN201610803164A CN106362483A CN 106362483 A CN106362483 A CN 106362483A CN 201610803164 A CN201610803164 A CN 201610803164A CN 106362483 A CN106362483 A CN 106362483A
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- polypropylene
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- silicon nanowires
- activated carbon
- electret
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/02—Loose filtering material, e.g. loose fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0028—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions provided with antibacterial or antifungal means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/04—Additives and treatments of the filtering material
- B01D2239/0407—Additives and treatments of the filtering material comprising particulate additives, e.g. adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/04—Additives and treatments of the filtering material
- B01D2239/0435—Electret
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/04—Additives and treatments of the filtering material
- B01D2239/0442—Antimicrobial, antibacterial, antifungal additives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/04—Additives and treatments of the filtering material
- B01D2239/0457—Specific fire retardant or heat resistant properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/06—Polluted air
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Nanotechnology (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Crystallography & Structural Chemistry (AREA)
- Filtering Materials (AREA)
Abstract
The invention discloses a polypropylene electret air filtering material with flame retardant performance. The material is prepared from, by weight, 50-60 parts of polypropylene, 9-15 parts of silicon monoxide, 12-18 parts of powdered activated carbon, 1-4 parts of 3-aminopropyl triethoxy silane coupling agent, 0.8-1.6 parts of glacial acetic acid, a proper amount of deionized water, 1-3 parts of low-density polyethylene wax, 0.5-1.8 parts of antioxidant, 0.8-1.5 parts of titanate coupling agent, 1-3 parts of antimonous oxide, 0.8-2 parts of zinc borate and 2-4 parts of decabrominated dipheny ethane. Prepared silicon nanowires containing alpha-quartz are added to the melt-blowing polypropylene electret material, and outstanding filtering efficiency is achieved; according to the silicon nanowires loaded by the activated carbon and processed through the silane coupling agent, the loading amount of the silicon nanowires by the activated carbon is improved, and the adsorption of the filtering material to harmful substances in air is effectively improved.
Description
Technical field
The invention belongs to field of air filtration is and in particular to a kind of polypropylene electret air filtration with fire resistance
Material and preparation method thereof.
Technical background
With the progress in epoch, the requirement more and more higher to environmental quality for the people.But the fast development of economy exacerbates ring
The pollution in border, the dust of in the air, chemical substance, harmful microorganism etc. create harmful effect to the health of people.Therefore, have
It is to have significant problem to be solved that effect controls the harmful substance of in the air.The application of air filter and filtering material is to purify sky
The important means of gas.Normal air filtering material is not thorough for the removal of fine particles, and easily grows on filtering material
, there is the possibility of secondary pollution in raw harmful microorganism.Electret air filtering material is to solve this difficult problem to provide possibility.
Electret air filtering material have the advantages that efficiently, low-resistance, energy-conservation, antibacterial, be that a class has application prospect very much
Novel air filtering material.The number of electret carried charge and charge decay speed are largely affected product
Performance and used life, inorganic or organic additive are added the chargeability that can improve electret in electret filter material,
Improve the strainability of electret filter material.
Fault Rong Hui, Shao Mingwang et al. have studied in " silicon-carbon nano material is in the applied research in nano generator " literary composition
Application in nano generator for the silicon nanowires, because in silicon nanowires containing this good piezoelectric of alpha-quartz so that silicon
Nano wire carries electrostatic charge and shows fabulous electret effect so as to be applied to the exploitation of nano generator.
Therefore, using this characteristic of silicon nanowires, the present invention is applied to electret air filtering field, silicon is received
Rice noodle adds the electret performance improving electret air filtering material in filtering material, improves the chargeability of electret, improves
The strainability of electret filter material.
Content of the invention
Not enough for prior art, the present invention provides a kind of polypropylene electret air filting material with fire resistance
And preparation method thereof.
A kind of polypropylene electret air filting material with fire resistance, by the raw material components of following weight portion: poly-
Propylene 50-60 part, silicon monoxide 9-15 part, Powdered Activated Carbon 12-18 part, 3- aminopropyl triethoxysilane coupling agent 1-4 part,
Glacial acetic acid 0.8-1.6 part, appropriate deionized water, low-density polyethylene wax 1-3 part, antioxidant 1010 0.5-1.8 part, titanate esters
Coupling agent 0.8-1.5 part, antimony oxide 1-3 part, Firebrake ZB 0.8-2 part, TDE 2-4 part.
Specifically comprise the following steps that
(1) preparation of silicon nanowires:
1. the little porcelain boat that, will be equipped with silicon monoxide powder is placed horizontally in the middle of alumina tube, then this pipe is placed on high temperature pipe
In formula stove, temperature, in 80-100pa, is then increased to 100-200,800-1100 DEG C and is incubated 50-70 respectively by evacuation respectively
Minute, it is warmed up to 1300-1400 DEG C of insulation 3-5 hour afterwards；
2., cool to 550-650 DEG C with the speed of 1-3 DEG C/min afterwards and be incubated 20-40 minute, sky is blasted with 50sccm simultaneously
Gas, to furnace chamber, naturally cools to room temperature, obtains silicon nanowires, standby；
(2) preparation of activated carbon supported silicon nanowires:
1., 3- aminopropyl triethoxysilane coupling agent is added to deionized water, and adjusts ph to 4 with a small amount of glacial acetic acid,
Stir 20-40 minute under room temperature, add the silicon nanowires that step (1) obtains afterwards, little in 80-100 DEG C of back flow reaction 11-13
When, sucking filtration, washing, drying, obtain silicon amide nanowire composite；
2., the silicon amide obtaining nanowire composite, Powdered Activated Carbon are added to deionized water, with ultrasound wave 40 DEG C,
20-40 minute is mixed, static aging 24 hours under room temperature, during deionized water cleaning to effluent is in repeatedly under conditions of 150w
Property, dry 10-14 hour to constant weight for 110-120 DEG C, then be placed in 380-420 DEG C of roasting 3-5 hour in Muffle furnace, cool down, be dried,
Activated carbon supported silicon nanowires is obtained；
(3) polypropylene fire retardant master batch preparation:
1., the activated carbon supported silicon nanowires preparing step (2) is put in super mixer, addition low-density polyethylene wax,
Antioxidant 1010 and titanate coupling agent, take out after being sufficiently stirred for, under the conditions of 100-110 DEG C, freeze-day with constant temperature 1-3 hour, obtains
To the good silicon nanowires of surface treated；
2., afterwards by the polypropylene of the silicon nanowires being surface-treated and 1/2 part, antimony oxide, Firebrake ZB and ten bromines two
Vinylbenzene adds twin screw compounding extruder to melt extrude, and through water-bath cooling, cuts granulating, obtains polypropylene fire retardant master batch；
(4) melt-blown preparation technology:
1., polypropylene composite materials master batch is mixed homogeneously with remaining polypropylene, feeds spinneret with dosing pump in the molten state,
, at 200-260 DEG C, at 230-290 DEG C, the FREQUENCY CONTROL of dosing pump is in 20- for the temperature of spinneret for the temperature controlling extruder
30hz, above-mentioned solution is extruded from spinneret orifice；
2., with high velocity, hot air, the melt extruding spinneret orifice is blown out ultra-fine fiber so as to flying to solidifying lace curtaining and cooling down bonding
Form fibre web；
(5) electrode by corona discharge assembly for the fibre web obtaining step (4), electrode discharge makes fibre web electret, obtains final product one kind
There is the polypropylene electret air filting material of fire resistance.
Wherein, described electret positive polarity selects 20-50kv, cathode voltage selection -10-30kv, and electret distance is 5-
20cm.
Compared with prior art, the invention has the advantages that
(1) present invention prepares the silicon nanowires containing alpha-quartz, because the volumetric expansion in alpha-quartz forming process is by outer layer
Amorphous silica limit and make alpha-quartz create piezoelectric effect, simultaneously by the electric charge of generation be stored in outer layer have good
In the amorphous silica layer of good electric charge storge quality, thus showing good electret behavior, by the silicon nanometer of preparation
Line is added in melt-blown polypropylene electret material, has both characteristics concurrently, greatly improves electret air filtering material
Charge stability, reduce the filtration resistance of filtering material, have brilliance filter efficiency, meanwhile, electret is formed
Highfield also there is the function of obvious its breeding of suppression to all kinds of antibacterials.
(2) activated carbon has abundant pore structure and unique chemical functional group, is environmentally friendly superior adsorbent,
The present invention, using the silicon nanowires after the activated carbon supported process through silane coupler, improves the load to silicon nanowires for the activated carbon
Amount, both compounding uses can effectively improve the absorption in the air harmful substance for the filtering material, make product have excellent mistake
Filter performance.
(3) filtering material of the present invention can not only filter the solid of in the air, liquid particle, good purification, pass through simultaneously
Antimony oxide, Firebrake ZB and TDE compounding so that filtering material has good anti-flammability, using safety
Performance is good.
Specific embodiment
A kind of polypropylene electret air filting material with fire resistance, by the raw material components of following weight portion: poly-
Propylene 55, silicon monoxide 11, Powdered Activated Carbon 14,3- aminopropyl triethoxysilane coupling agent 3, glacial acetic acid 1.2, deionized water
In right amount, low-density polyethylene wax 2, antioxidant 1010 1.6, titanate coupling agent 1, antimony oxide 2, Firebrake ZB 1, ten bromines two
Vinylbenzene 3.
Specifically comprise the following steps that
(1) preparation of silicon nanowires:
1. the little porcelain boat that, will be equipped with silicon monoxide powder is placed horizontally in the middle of alumina tube, then this pipe is placed on high temperature pipe
In formula stove, temperature, in 100pa, is then increased to 200,900 DEG C and is incubated 60 minutes respectively, be warmed up to afterwards by evacuation respectively
1200 DEG C are incubated 4 hours；
2., cool to 600 DEG C with the speed of 2 DEG C/min afterwards and be incubated 30 minutes, air is blasted to furnace chamber with 50sccm simultaneously,
Naturally cool to room temperature, obtain silicon nanowires, standby；
(2) preparation of activated carbon supported silicon nanowires:
1., 3- aminopropyl triethoxysilane coupling agent is added to deionized water, and adjusts ph to 4 with a small amount of glacial acetic acid,
Stir under room temperature 30 minutes, add step (1) silicon nanowires that obtains afterwards, in 90 DEG C of back flow reaction 12 hours, sucking filtration, wash
Wash, be dried, obtain silicon amide nanowire composite；
2., the silicon amide obtaining nanowire composite, Powdered Activated Carbon are added to deionized water, with ultrasound wave 40 DEG C,
Mix 30 minutes under conditions of 150w, static aging 24 hours under room temperature, deionized water is cleaned repeatedly to effluent in neutrality,
Dry 12 hours to constant weight for 110 DEG C, then be placed in Muffle furnace 400 DEG C of roastings 4 hours, cooling, be dried, activated carbon supported silicon is obtained
Nano wire；
(3) polypropylene fire retardant master batch preparation:
1., the activated carbon supported silicon nanowires preparing step (2) is put in super mixer, addition low-density polyethylene wax,
Antioxidant 1010 and titanate coupling agent, take out after being sufficiently stirred for, under the conditions of 105 DEG C, freeze-day with constant temperature 2 hours, obtain through table
The silicon nanowires that face is handled well；
2., afterwards by the polypropylene of the silicon nanowires being surface-treated and 1/2 part, antimony oxide, Firebrake ZB and ten bromines two
Vinylbenzene adds twin screw compounding extruder to melt extrude, and through water-bath cooling, cuts granulating, obtains polypropylene fire retardant master batch；
(4) melt-blown preparation technology:
1., polypropylene composite materials master batch is mixed homogeneously with remaining polypropylene, feeds spinneret with dosing pump in the molten state,
Control extruder temperature at 240 DEG C, the temperature of spinneret at 280 DEG C, the FREQUENCY CONTROL of dosing pump in 30hz, by above-mentioned solution
From spinneret orifice extrusion；
2., with high velocity, hot air, the melt extruding spinneret orifice is blown out ultra-fine fiber so as to flying to solidifying lace curtaining and cooling down bonding
Form fibre web；
(5) electrode by corona discharge assembly for the fibre web obtaining step (4), electrode discharge makes fibre web electret, obtains final product one kind
There is the polypropylene electret air filting material of fire resistance.
Wherein, described electret positive polarity selects 40kv, cathode voltage selection -20kv, and electret distance is 10cm.
Properties of product test result: air penetrability: 108.5l/m2.s ；Strength 27.4cd；The pressure loss: 88.75pa；Cross
Filter efficiency: 99.98%(filter efficiency is directed to the particle that particle diameter is more than 0.3 μm).
Claims (3)
1. a kind of polypropylene electret air filting material with fire resistance is it is characterised in that former by following weight portion
Material component: polypropylene 50-60 part, silicon monoxide 9-15 part, Powdered Activated Carbon 12-18 part, 3- aminopropyl triethoxysilane is even
Connection agent 1-4 part, glacial acetic acid 0.8-1.6 part, appropriate deionized water, low-density polyethylene wax 1-3 part, antioxidant 1010 0.5-1.8
Part, titanate coupling agent 0.8-1.5 part, antimony oxide 1-3 part, Firebrake ZB 0.8-2 part, TDE 2-4 part.
2. the preparation side of a kind of polypropylene electret air filting material with fire resistance according to claim 1
Method is it is characterised in that specifically comprise the following steps that
(1) preparation of silicon nanowires:
1. the little porcelain boat that, will be equipped with silicon monoxide powder is placed horizontally in the middle of alumina tube, then this pipe is placed on high temperature pipe
In formula stove, temperature, in 80-100pa, is then increased to 100-200,800-1100 DEG C and is incubated 50-70 respectively by evacuation respectively
Minute, it is warmed up to 1300-1400 DEG C of insulation 3-5 hour afterwards；
2., cool to 550-650 DEG C with the speed of 1-3 DEG C/min afterwards and be incubated 20-40 minute, sky is blasted with 50sccm simultaneously
Gas, to furnace chamber, naturally cools to room temperature, obtains silicon nanowires, standby；
(2) preparation of activated carbon supported silicon nanowires:
1., 3- aminopropyl triethoxysilane coupling agent is added to deionized water, and adjusts ph to 4 with a small amount of glacial acetic acid,
Stir 20-40 minute under room temperature, add the silicon nanowires that step (1) obtains afterwards, little in 80-100 DEG C of back flow reaction 11-13
When, sucking filtration, washing, drying, obtain silicon amide nanowire composite；
2., the silicon amide obtaining nanowire composite, Powdered Activated Carbon are added to deionized water, with ultrasound wave 40 DEG C,
20-40 minute is mixed, static aging 24 hours under room temperature, during deionized water cleaning to effluent is in repeatedly under conditions of 150w
Property, dry 10-14 hour to constant weight for 110-120 DEG C, then be placed in 380-420 DEG C of roasting 3-5 hour in Muffle furnace, cool down, be dried,
Activated carbon supported silicon nanowires is obtained；
(3) polypropylene fire retardant master batch preparation:
1., the activated carbon supported silicon nanowires preparing step (2) is put in super mixer, addition low-density polyethylene wax,
Antioxidant 1010 and titanate coupling agent, take out after being sufficiently stirred for, under the conditions of 100-110 DEG C, freeze-day with constant temperature 1-3 hour, obtains
To the good silicon nanowires of surface treated；
2., afterwards by the polypropylene of the silicon nanowires being surface-treated and 1/2 part, antimony oxide, Firebrake ZB and ten bromines two
Vinylbenzene adds twin screw compounding extruder to melt extrude, and through water-bath cooling, cuts granulating, obtains polypropylene fire retardant master batch；
(4) melt-blown preparation technology:
1., polypropylene composite materials master batch is mixed homogeneously with remaining polypropylene, feeds spinneret with dosing pump in the molten state,
, at 200-260 DEG C, at 230-290 DEG C, the FREQUENCY CONTROL of dosing pump is in 20- for the temperature of spinneret for the temperature controlling extruder
30hz, above-mentioned solution is extruded from spinneret orifice；
2., with high velocity, hot air, the melt extruding spinneret orifice is blown out ultra-fine fiber so as to flying to solidifying lace curtaining and cooling down bonding
Form fibre web；
(5) electrode by corona discharge assembly for the fibre web obtaining step (4), electrode discharge makes fibre web electret, obtains final product one kind
There is the polypropylene electret air filting material of fire resistance.
3. the preparation side of a kind of polypropylene electret air filting material with fire resistance according to claim 2
It is characterised in that electret positive polarity selects 20-50kv, cathode voltage selection -10-30kv, electret distance is 5-20cm to method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610803164.7A CN106362483A (en) | 2016-09-06 | 2016-09-06 | Polypropylene electret air filtering material with flame retardant performance and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610803164.7A CN106362483A (en) | 2016-09-06 | 2016-09-06 | Polypropylene electret air filtering material with flame retardant performance and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107050997A (en) * | 2017-05-10 | 2017-08-18 | 江苏环宇汽车零部件有限公司 | A kind of automobile-used high-performance air filting material and preparation method thereof |
| CN111249812A (en) * | 2020-01-19 | 2020-06-09 | 上海材料研究所 | High-molecular electret material for air purification and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1718910A (en) * | 2005-07-18 | 2006-01-11 | 天津工业大学 | Modified polypropylene mother particle for melt spray, its preparation method and use |
-
2016
- 2016-09-06 CN CN201610803164.7A patent/CN106362483A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1718910A (en) * | 2005-07-18 | 2006-01-11 | 天津工业大学 | Modified polypropylene mother particle for melt spray, its preparation method and use |
Non-Patent Citations (1)
| Title |
|---|
| 阙荣辉: "硅碳纳米材料在纳米发电机中的应用研究", 《中国博士学位论文全文数据库工程科技II辑（月刊）》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107050997A (en) * | 2017-05-10 | 2017-08-18 | 江苏环宇汽车零部件有限公司 | A kind of automobile-used high-performance air filting material and preparation method thereof |
| CN111249812A (en) * | 2020-01-19 | 2020-06-09 | 上海材料研究所 | High-molecular electret material for air purification and preparation method thereof |
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Application publication date: 20170201 |