CN101787620B - High temperature resistant melt-blown non-woven material and preparation method thereof - Google Patents
High temperature resistant melt-blown non-woven material and preparation method thereof Download PDFInfo
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- CN101787620B CN101787620B CN201010103719XA CN201010103719A CN101787620B CN 101787620 B CN101787620 B CN 101787620B CN 201010103719X A CN201010103719X A CN 201010103719XA CN 201010103719 A CN201010103719 A CN 201010103719A CN 101787620 B CN101787620 B CN 101787620B
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- woven material
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- 239000000463 material Substances 0.000 title claims abstract description 45
- 239000004750 melt-blown nonwoven Substances 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title claims abstract description 7
- 239000000835 fiber Substances 0.000 claims abstract description 40
- 239000004743 Polypropylene Substances 0.000 claims abstract description 35
- 229910052902 vermiculite Inorganic materials 0.000 claims abstract description 35
- 239000010455 vermiculite Substances 0.000 claims abstract description 35
- 235000019354 vermiculite Nutrition 0.000 claims abstract description 35
- -1 polypropylene Polymers 0.000 claims abstract description 34
- 229920001155 polypropylene Polymers 0.000 claims abstract description 32
- 239000000843 powder Substances 0.000 claims abstract description 28
- 238000000034 method Methods 0.000 claims description 13
- 239000002245 particle Substances 0.000 claims description 6
- 238000009987 spinning Methods 0.000 claims description 6
- 238000001914 filtration Methods 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 239000004744 fabric Substances 0.000 description 10
- 238000001816 cooling Methods 0.000 description 9
- 238000002425 crystallisation Methods 0.000 description 8
- 230000008025 crystallization Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- 239000007921 spray Substances 0.000 description 7
- 238000009941 weaving Methods 0.000 description 6
- 238000009413 insulation Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000009834 vaporization Methods 0.000 description 4
- 230000008016 vaporization Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 230000001788 irregular Effects 0.000 description 3
- 239000011777 magnesium Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000010445 mica Substances 0.000 description 2
- 229910052618 mica group Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 229910017121 AlSiO Inorganic materials 0.000 description 1
- 206010069767 H1N1 influenza Diseases 0.000 description 1
- 241000545744 Hirudinea Species 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 239000004594 Masterbatch (MB) Substances 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005341 cation exchange Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 230000005686 electrostatic field Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000010413 gardening Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 201000010740 swine influenza Diseases 0.000 description 1
Abstract
The invention discloses a high temperature resistant melt-blown non-woven material; the material contains polypropylene fiber; and the fiber contains vermiculite powder. The invention also discloses a preparation method of the material. The melt-blown non-woven material of the invention has excellent high temperature resistant performance and high-efficiency filtration performance.
Description
Technical field
The present invention relates to the nonwoven material field, particularly relate to a kind of resistant to elevated temperatures melt-blown non-woven material and this preparation methods.
Background technology
Polypropylene melt-blown method nonwoven material is because fibre diameter is thin, specific area is big, hole is little, voidage is high, extremely is fit to be used as liquid or gas high efficiency filter material, and is that people accept widely and are familiar with along with the popular of SARS, H1N1 influenza.
Polypropylene melt-blown method nonwoven material processes through melt blown technology.The meltblown nonwoven techniques is that polymer directly becomes to net a kind of in the non-weaving cloth technology, and its adopts high velocity, hot air that filament is stretched, and is directly processed a kind of non-weaving cloth processing technology of superfine fibre or product by polymer or resin one-step method.Its concrete technological process is following:
Section feeds → melt extrudes → fiber formation → static electret → fiber cooling → one-tenth net → bonding (reinforcing) → ballingup
The section feeding: polypropylene chip is introduced into hopper, mixes with other additives (cooling masterbatch), is delivered into extruder;
Melt extrude: at the feed end of extruder; Necessary raw materials mix such as polypropylene chip and other additives is even; Get into Luo bar extruder through fully stirring the back; Be heated as melt and through filter melt sent into spinnerets by measuring pump at last, in melt-blown process, general extruder also borrows its shear action and thermal degradation to reduce polymer molecular weight;
Fiber forms: the cleaning melt through filtering will pass through distribution system; Send into every group of spinnerets more equably; Make the extrusion capacity of each spinneret orifice consistent, plate design and general chemical spinning are torn in the spray of melt-blown non-woven material, the filature fleece formation non-weaving cloth is different, and its spinneret orifice must be arranged in line; Both sides then have the spray groove of high velocity air up and down, and being used for the drawing-off melt becomes fiber;
Static electret: under molten condition, apply certain electrostatic field, make fiber have static;
The fiber cooling: the air at room temperature a large amount of in the spinnerets both sides are inhaled into simultaneously, mix with the thermal air current that contains superfine fibre, make the polypropylene fibre cooling, the superfine fibre of molten state thereby cooling curing;
Become net: under the state of net bottom negative pressure, thermal current sprays to into lace curtaining with the superfine fibre that the working air current band that the room temperature air-flow mixes mutually wherein, is condensed into net; By the mixed airflow band to the superfine fibre that becomes lace curtaining basically with mixed and disorderly distributions in air-flow, wherein some fiber has a spot of entanglement each other, under proper technical conditions; Fibre deposition still has Yu Wen on the net the time, and is very soft; Toughness, so the part fiber produces cohesive action in the fibre web;
Bonding (reinforcing): self cohering of fibre web has more fluffy structure, good air retention or voidage.
Ballingup: before coiling, the burr on fusion spray cloth both sides are cut.
Generally below 120 degree, when being higher than this temperature applications, its heat resistance can't reach requirement for the polypropylene melt-blown method nonwoven material that routine obtains, its application of temperature.
Vermiculite is a kind of natural, nontoxic mineral matter, and dilatable mineral belong to silicate under high temperature action.The chemical formula of vermiculite is Mg
x(H
2O) { Mg
3-x[AlSiO
3O
10] (OH)
2, be a kind of secondary metamorphic mineral of water aluminosilicate that contains magnesium, be similar to mica outward, form through hydrothermal alteration effect or weathering by black (gold) mica usually, be the deflection shape when expanding because of its dehydration of being heated, form exactly likes leech, so claim vermiculite.Vermiculite has high temperature dilatancy, cation exchange property, adsorptivity, water imbibition, sound insulation property, thermal insulation, fire resistance.Vermiculite has been widely applied to fields such as building, metallurgy, oil, shipbuilding, environmental protection, insulation, heat insulation, insulation, energy-conservation, gardening.The animal husbandry aspect: expanded vermiculite has unique structural property and surface nature, and nontoxic, aseptic and chemical inertness, can be used as carrier, adsorbent, sticking agent, and feed addictive.
Summary of the invention
The objective of the invention is deficiency, a kind of melt-blown non-woven material with resistance to elevated temperatures and filtration efficiency is provided to prior art.
Another object of the present invention is to provide the preparation method of above-mentioned melt-blown non-woven material.
For realizing above-mentioned purpose, the present invention has adopted following technical scheme:
The invention discloses a kind of high temperature resistant melt-blown non-woven material, said material contains polypropylene fibre, contains the vermiculite powder in the said polypropylene fibre.
The particle diameter of said vermiculite powder is a nano-micro level.
In the preferred embodiment of the present invention, the particle diameter of said vermiculite powder is 10%～30% of a polypropylene superfine fiber fineness.
The fineness of said polypropylene fibre is generally 300nm～5 μ m.
Preferably, the mass percentage content of said vermiculite powder in said material is 3%～15%.
The grammes per square metre of said melt-blown non-woven material is 20～50g/m
2
Said polypropylene melt index is 800g/10min～1800g/10min.
The present invention further discloses the preparation method of said high temperature resistant melt-blown non-woven material, said method is fully mixed polypropylene with the vermiculite powder before being included in fiber formation, and common spinning.
Owing to adopted above technical scheme, the beneficial effect that the present invention is possessed is:
The present invention is added in the polypropylene melt-blown high efficiency filter material through vermiculite being received micro-powder, can obtain the resistant to elevated temperatures high efficiency filter material that melts and sprays.The polypropylene melt-blown high efficiency filter material that adopts this technical scheme to make, its filter efficiency reaches more than 95%, and the projection of similar bubble is arranged on this melts and sprays the superfine fibre of high efficiency filter material; When high temperature used, vaporization had reduced polyacrylic temperature thereby the crystallization water in the bubble absorbs heat, and because the effect of bubble; Increased specific area; Improved filter efficiency, also improved heat resistance, heat resisting temperature is above 140 ℃.
The specific embodiment
The present invention aims to provide a kind of containing and receives the polypropylene melt-blown high efficiency filter material of micron vermiculite powder; This material is in spinning process, to sneak into a certain proportion of micron vermiculite powder of receiving, in the melt-out spinning process, and the vaporization of the crystallization water of vermiculite powder; On the superfine fibre of polypropylene melt blown non-woven fabric, form the projection of similar bubble one by one; After the cooling, form the crystallization water again, in the high temperature use afterwards; External heat at first will make the crystallization water vaporization in the filtering material, and this has improved the heat resistance of polypropylene melt-blown high efficiency filter material.Polypropylene melt-blown nonwoven fabric material grammes per square metre 20-50g/m of the present invention
2, its filter efficiency reaches more than 95%.
In order to guarantee effective mechanical strength, the mass percentage content of vermiculite powder should be in the scope of 3%-15%, according to serviceability temperature adjustment content; In above-mentioned scope; The vermiculite power body burden is high more, and heat-resisting quantity is good more, but along with the increase of content; The physical property of product can great changes have taken place, powerful can the reduction.
In concrete embodiment of the present invention; Be with melt index be 800g/10min～1800g/10min isotactic polypropylene section with receive micron vermiculite powder and be (85-97) with ratio: mass ratio (15-3) mixes, and carries out production and processing according to the technology of melt blown non-woven.In the screw rod squeezer,, do not produce bubble because internal pressure is big; But one goes out spinnerets, because ambient pressure diminishes rapidly, the pressure of the water vapour around the vermiculite powder is high; Cause having the local of vermiculite powder to bubble rapidly, along with the cooling of fiber, steam becomes the crystallization water again then; Bubble can dwindle, and forms more minute bubbles of irregular status, and producing grammes per square metre is 20-50g/m
2Polypropylene melt-blown method non-weaving cloth.Above-mentioned used melt index is the above isotactic polypropylene section of 800g/10min～1800g/10min, is the raw material specification commonly used of polypropylene melt-blown nonwoven fabric, for other conventional raw materials, equally also is applicable to the present invention.The used micron vermiculite powder of receiving, its particle diameter can both reach the effect of expectation usually as long as in the nano-micro level scope.But preferable particle size is 10～30% of a fibre fineness, more preferably about 1/5.And the superfine fibre fineness of common polypropylene melt blown non-woven material is about 300 nanometers to 5 micron.
The above-mentioned polypropylene melt-blown high efficiency filter material for preparing, its filter efficiency reaches more than 95%, and the projection of similar bubble is arranged on this melts and sprays the superfine fibre of high efficiency filter material; When high temperature uses; Vaporization has reduced polyacrylic temperature thereby the crystallization water in the bubble absorbs heat, and because the effect of bubble has increased specific area; Improve filter efficiency, improved the heat resistance of material simultaneously.
Through specific embodiment the present invention is described in further detail below.
Embodiment 1:
Before spinning, be that isotactic polypropylene section more than the 1200g/10min is that 90: 10 mass ratio mixes with receiving micron vermiculite powder with ratio with melt index, carry out production and processing according to the technology of melt blown non-woven then; In the screw rod squeezer,, do not produce bubble because internal pressure is big; But one goes out spinnerets, because ambient pressure diminishes rapidly, the pressure of the water vapour around the vermiculite powder is high; Cause having the local of vermiculite powder to bubble rapidly, along with the cooling of fiber, steam becomes the crystallization water again then; Bubble can dwindle, and forms more minute bubbles of irregular status, and producing grammes per square metre is 35g/m
2Polypropylene melt-blown method non-weaving cloth.Fibre fineness is about 1 μ m, and the average grain diameter of used vermiculite powder is about 200nm.
Through detecting, the filter efficiency of this material reaches 99.99%, and the heatproof temperature is 140 degree, can be used for automobile danger gas and filter.
Embodiment 2:
With melt index is that isotactic polypropylene section more than the 1000g/10min is that 85: 15 mass ratio mixes with receiving micron vermiculite powder with ratio, carries out production and processing according to the technology of melt blown non-woven, in the screw rod squeezer; Because internal pressure is big, do not produce bubble, but one goes out spinnerets; Because ambient pressure diminishes rapidly, the pressure of the water vapour around the vermiculite powder is high, causes having the local of vermiculite powder to bubble rapidly; Along with the cooling of fiber, steam becomes the crystallization water again then, and bubble can dwindle; Form more minute bubbles of irregular status, producing grammes per square metre is 40g/m
2Polypropylene melt-blown method non-weaving cloth.Fibre fineness is about 3 μ m, and the average grain diameter of used vermiculite powder is about 0.6 μ m.
The filter efficiency of this material reaches more than 99.99%, and the heatproof temperature is 150 degree, and being combined with each other with other materials is used as bag filter.
Above content is to combine concrete embodiment to the further explain that the present invention did, and can not assert that practical implementation of the present invention is confined to these explanations.For the those of ordinary skill of technical field under the present invention, under the prerequisite that does not break away from the present invention's design, can also make some simple deduction or replace, all should be regarded as belonging to protection scope of the present invention.
Claims (6)
1. high temperature resistant melt-blown non-woven material; Said material contains polypropylene fibre; It is characterized in that: contain the vermiculite powder in the said polypropylene fibre, the particle diameter of said vermiculite powder is a nano-micro level, and the mass percentage content of said vermiculite powder in said material is 3%～15%.
2. a kind of high temperature resistant melt-blown non-woven material according to claim 1 is characterized in that: the particle diameter of said vermiculite powder is 10%～30% of a polypropylene superfine fiber fineness.
3. a kind of high temperature resistant melt-blown non-woven material according to claim 2 is characterized in that: the fineness of said polypropylene fibre is 300nm～5 μ m.
4. according to any described a kind of high temperature resistant melt-blown non-woven material of claim 1～3, it is characterized in that: the grammes per square metre of said melt-blown non-woven material is 20～50g/m
2
5. a kind of high temperature resistant melt-blown non-woven material according to claim 4 is characterized in that: said polypropylene melt index is 800g/10min～1800g/10min.
6. the preparation method of any described high temperature resistant melt-blown non-woven material of claim 1～5, said method are included in fiber and polypropylene are fully mixed with the vermiculite powder before forming, and spinning jointly.
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| CN201010103719XA CN101787620B (en) | 2010-01-25 | 2010-01-25 | High temperature resistant melt-blown non-woven material and preparation method thereof |
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| CN101787620A CN101787620A (en) | 2010-07-28 |
| CN101787620B true CN101787620B (en) | 2012-05-02 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104759157A (en) * | 2015-03-19 | 2015-07-08 | 蚌埠首创滤清器有限公司 | High-hydrophobic composite filter material prepared by blending melt-blown polypropylene with modified vermiculite and used for sewage treatment and preparation method thereof |
| CN104963092A (en) * | 2015-07-31 | 2015-10-07 | 武汉蓝普医品有限公司 | Preparation device and method for non-woven high polymer material optilene mesh |
| CN105133062A (en) * | 2015-09-22 | 2015-12-09 | 深圳市东城绿色投资有限公司 | Preparation method of modified polypropylene nano fiber and oil absorption felt made from modified polypropylene nano fiber |
| CN111910274B (en) * | 2020-09-02 | 2023-03-31 | 江科 | Device and method for jet fiber electrostatic electret and fiber drawing of non-woven fabric by melt-blowing method |
| CN112430337A (en) * | 2020-11-17 | 2021-03-02 | 黑龙江康禄新材料科技有限公司 | Electret master batch capable of naturally releasing negative oxygen ions, application and process |
| CN116454483A (en) * | 2023-03-29 | 2023-07-18 | 江苏阿诗特能源科技股份有限公司 | Thermal runaway inhibition thin material and lithium battery module |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1318657A (en) * | 2000-04-04 | 2001-10-24 | 石美秀 | Manufacture of fibre containing functional mineral powder and fibre prepared by the same |
| CN1544724A (en) * | 2003-11-27 | 2004-11-10 | 天津工业大学 | Electret polypropylene melt-blown nonwovens and method for preparation |
| CN101407629A (en) * | 2008-11-25 | 2009-04-15 | 张鼎周 | High flame-retardant vermiculite polyurethane composite material and preparation thereof |
-
2010
- 2010-01-25 CN CN201010103719XA patent/CN101787620B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1318657A (en) * | 2000-04-04 | 2001-10-24 | 石美秀 | Manufacture of fibre containing functional mineral powder and fibre prepared by the same |
| CN1544724A (en) * | 2003-11-27 | 2004-11-10 | 天津工业大学 | Electret polypropylene melt-blown nonwovens and method for preparation |
| CN101407629A (en) * | 2008-11-25 | 2009-04-15 | 张鼎周 | High flame-retardant vermiculite polyurethane composite material and preparation thereof |
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| CN101787620A (en) | 2010-07-28 |
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Effective date of registration: 20170906 Address after: 257000 Shandong city of Dongying province Dongying District Office Building No. 59 new street before hatching (B building) room 236 Patentee after: DONGYING JUNFU PURIFICATION TECHNOLOGY CO.,LTD. Address before: 257091 No. 1278, South Road, Shandong, Dongying Patentee before: SHANDONG JOFO NONWOVEN Co.,Ltd. |
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Denomination of invention: A high-temperature resistant melt blown nonwoven material and its preparation method Granted publication date: 20120502 Pledgee: Industrial and Commercial Bank of China Limited Dongying Dongcheng Branch Pledgor: DONGYING JUNFU PURIFICATION TECHNOLOGY CO.,LTD. Registration number: Y2024980007466 |
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