WO2016099306A1 - Procédé pour la fabrication d'un matériau filtrant plat et matériau filtrant plat formé à partir de mélanges de polymères - Google Patents

Procédé pour la fabrication d'un matériau filtrant plat et matériau filtrant plat formé à partir de mélanges de polymères Download PDF

Info

Publication number
WO2016099306A1
WO2016099306A1 PCT/PL2014/000154 PL2014000154W WO2016099306A1 WO 2016099306 A1 WO2016099306 A1 WO 2016099306A1 PL 2014000154 W PL2014000154 W PL 2014000154W WO 2016099306 A1 WO2016099306 A1 WO 2016099306A1
Authority
WO
WIPO (PCT)
Prior art keywords
polymer
filter material
flat filter
mixture
polymers
Prior art date
Application number
PCT/PL2014/000154
Other languages
English (en)
Inventor
Urszula BORKOWSKA
Monika MALESA
Jan MICHALAK
Włodzimierz PIŁACIŃSKI
Janusz ROSLON
Original Assignee
Secura B.C. Sp. Z O.O.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Secura B.C. Sp. Z O.O. filed Critical Secura B.C. Sp. Z O.O.
Publication of WO2016099306A1 publication Critical patent/WO2016099306A1/fr

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • D01D5/098—Melt spinning methods with simultaneous stretching
    • D01D5/0985—Melt spinning methods with simultaneous stretching by means of a flowing gas (e.g. melt-blowing)
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
    • B01D39/1623—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
    • 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
    • B01D2239/10—Filtering material manufacturing

Definitions

  • a method for the manufacture of a flat filter material, flat filter material from polymer blends is provided.
  • the present invention relates to a method for the manufacture of a flat filter material, flat filter material from polymer blends, in particular a flat filter material obtained as in described process and a filter comprising a flat filter material.
  • Flat non-woven filter fabrics are a basic material for the production of various types of air filters. Such fabrics are formed from the natural fibers and present primarily from various types of plastics. The choice of material for the construction of the filter beside the price of crucial importance are other properties, such as filtration efficiency, pressure drop, temperature range of application etc.
  • the PL277835 semi-mask which comprises a fine filter which is a mixture of uniformly distributed in the space of the fibers of at least two materials with different dielectric constants and the structure limit of the filter porosity is less than 30%.
  • US2012097035 discloses a filter material comprising a blend of polypropylene and acrylic fibers in the shape of a rounded, flat, a dog bone, oval or bean-like size from 0.08 to 3.3 dtex.
  • a preferred blend comprises about 50 weight percent polypropylene fibers and about 50 percent by weight of acrylic fibers.
  • the fibers may be mixed in the range of from 90:10 to 10:90 for acrylic polypropylene.
  • the shape contains 25 percent by weight of a rounded shape, a flat, dog bone, oval or bean-like.
  • the mixture of fibers comprises about 25 weight percent of at least one size of between 0.08 and 3.3 dtex.
  • the electret fibers added to these mixtures comprise from 0.02 to 33 percent by weight of the charge control agent. These fibers may be used in the manufacture of the electret material with corona methods, or triboelectric methods for entering the charge.
  • the mixture is dried to a moisture content ⁇ 1% by weight.
  • US2004177758 presents triboelectric air filter medium formed as a mixture of polyolefin fibers and polyamide fibers.
  • a blend of polyolefin fibers and polyamide fibers is carded to charge the polyamide and polyolefin fibers with the electrical charges.
  • the ratio by weight of polyamide fibers to polyolefin fibers is in the range from 10:90 to 90:10.
  • US5368734 discloses an electrically charged air filter which comprises a blend of clean expanded fibers of elongated porous polytetrafluoroethylene and polyamide fibers.
  • Electrostatic layers preferably comprises a blend of polypropylene and modacrylic fibers, with the ratio of their masses being preferably of 2: 1 , and may include a thin woven fabric made of polypropylene, which is intended to strengthen and protect these layers.
  • the second layer may for example be obtained by means of polypropylene meltblown layer of lower weight than electricity.
  • US4965034 discloses an extrusion linear ethylene polymers such as low density polyethylene (LLDPE) with minor amounts (less than 5 weight percent), thermoplastic polyurethane. These polymers are used to extrude film having improved surface structure.
  • LLDPE low density polyethylene
  • thermoplastic polyurethane thermoplastic polyurethane
  • DE 10022889 describe a method wherein a stream of molten polyester, which is divided into second and third stream of polyester. To the second stream is introduced additional polyester polymer melt to obtain a polymer blend of a second polymer containing from 3 to 50% by weight. The first polymer mixture is fed to the third stream of the polyester, wherein the first and third stream of the polyester blend into a second polymer blend. This blend is formed into fibers, which can create non-woven fabrics.
  • US4518744 concerns a process for melt spinning fiber-forming thermoplastic polymer, more particularly polyethylene terephthalate, adipic acid, hexamethylene or polypropylene.
  • the fiber-forming polymer is added in the range of from 0.1 % to 10% by weight of another polymer which is immiscible in a melt of the fiber- forming polymer.
  • This other polymer has a particle size of 0.5 to 3 microns in the melt with the fiber-forming polymer immediately prior to spinning.
  • Also described are new the melt spun fibers produced in the process, in which another polymer is in the form of microfibrils.
  • US4945125 describes a method for preparing partially interpenetrating polymer network of polytetrafluoroethylene and silicone elastomers.
  • the articles produced by this method have improved physical properties as compared to extruded fibers as polytetrafluoroethylene only dispersing resin.
  • the prior art also considered providing additives to the nonwoven fabrics such as resin particles or the formation of nonwovens composed of two types of polymers to triboelectric phenomenon generated by the electric charges in the nonwoven fabric.
  • additives to the nonwoven fabrics such as resin particles or the formation of nonwovens composed of two types of polymers to triboelectric phenomenon generated by the electric charges in the nonwoven fabric.
  • the first attempts to produce non-woven filter of a mixture of two different polymers fed into an extruder did not give the expected results.
  • the method for obtaining a flat filter material that is characterized by high efficiency filtration through continuous triboelectric charging of fibril at the point of their contact was obtained.
  • This material has highly improved filtration efficiency in comparison with the conventional planar non-woven polypropylene fibers.
  • triboelectric effect persisted for a long time and provide long-term effect to improve filtration efficiency, especially in the critical research aimed at the acquisition of new knowledge and skills for developing new products, in this case, an innovative method for obtaining a flat filter material with polymer blend was provided.
  • the present invention relates to a method for the manufacture of a flat filter material, characterized in forming the fibers from a mixture of granulates from at least two polymers wherein one polymer is selected from the group consisting of polymers having negative tribolectric charge and another polymer selected from the group consisting of polymers having a positive tribolectric charge, melting and mixing a mixture of granulates in an extruder, then hot forming polymer fibers, which are fed to the receiver system to form thereon a layer fleece.
  • the temperature of the molten polymer blend in the range of 220 to 255°C.
  • the temperature of the air in the head for forming fiber is in the range: 350-420/°C, preferably at temp: 380°C.
  • the ratio of used air streams directed to the polymer fibers in the forming head zakresie2,0 to 3.0 kg/kg of polymer.
  • the first polymer is selected from the group consisting of: polyacrylonitrile, polyethylene, polypropylene, polyvinyl chloride and another polymer selected from the group consisting of: polyformaldehyde, polyester, polyamides, poly(methyl methacryiate) and polystyrene, poly (methyl methacrylate).
  • Preferred is a mixture of polypropylene and polyester or polypropylene, and Nylon 66, Preferred is a mixture of two polymers used in a ratio of 80:20 to 20:80.
  • a mixture of polypropylene having a high melt index, nylon 66, polystyrene and methyl methacrylate, or a mixture of polypropylene having a high melt index, nylon 66, polystyrene and methyl methacrylate, preferably polymethyl methacrylate content in blends is less than 30%.
  • the present invention also relates to a flat filter material obtained by the method according to the invention.
  • a flat filter material consists of fibers comprising a mixture of at least two polymers, one polymer selected from the group consisting of polymers having negative tribolectric charge and another polymer selected from the group consisting of polymers having a positive tribolectric charge.
  • the first polymer is selected from the group consisting of: polyacrylonitrile, polyethylene, polypropylene, polyvinyl chloride and the other polymer is selected from the group consisting of: poliformaldehyde, polyester, polyamides, poly (methyl methacrylate).
  • More preferably flat filter material consists of a mixture of polypropylene and polyester or polypropylene and Nylon 66, wherein the mixture of two polymers is used in a ratio of 80:20 to 20:80.
  • the flat filter material comprises a mixture of
  • polypropylene having a high melt index nylon 66, polystyrene and methyl
  • the flat filter material comprises a mixture of polypropylene having a high melt index, nylon 66, polystyrene and methyl methacrylate.
  • the content of polymethyl methacrylate in blende is less than 30%.
  • the present invention also provides a filter comprising a flat filter material according to the invention.
  • Fig. 1 shows schematically the connection of the polymer fibers (polymer blends) of the prior art
  • Fig. 2 shows schematically a possible connection of polymers (polymer blends) of the invention.
  • Fig. 3 shows a comparison of filtration efficiency for materials produced according to the Examples.
  • the graph clearly shows that the polymer blends of the invention permit the production of filter material of substantially higher filtration efficiency.
  • the invention was illustrated in the examples which are intended to merely a detailed explanation of certain preferred embodiments of the invention.
  • the air used to form the polymeric fibers of the spray head was administered in an amount of 2.6 kg/kg of polymer.
  • the resulting nonwoven fabric was subjected to filtration tests using a test aerosol. The test results are shown in Table 1. The tests were subjected obtained nonwovens flat sample area of 50.2 cm2 at air flow of 30 l/min.
  • the granulate of fresh Nylon 66 was introduced.
  • the polymer was melted and mixed.
  • the melted polymer was further pushed to the spray head where the hot polymer fibers were formed with the melt blown process.
  • These fibers were placed on the receiver system, formed in the layer of fleece and while cooling down, stuck together in result of the contact of the fibers. In result a stable and compact cylindrical nonwoven fabric composed of fibers was obtained.
  • the thickness of the nonwoven fabric was controlled by the rate of receiving a pile formed at the outlet of the spray nozzle.
  • Control of the size of the fibers was achieved by appropriately selecting the temperature of the molten polymer blend, the temperature of the air stream used in forming the head and the ratio of fibers and air streams directed to the head of the polymer forming the fibers.
  • the resulting nonwoven fabric was subjected to filtration tests using a test aerosol. The test results are shown in Table 2. The tests were conducted with the obtained nonwovens flat sample area of 50.2 cm 2 at air flow of 30 l/min.
  • the granulates of a mixture of polypropylene and polyester (PET) in a suitable weight ratio were introduced.
  • PET polypropylene and polyester
  • the molten, liquid mixture was further pumped to the spray head where the melt blown formed into a hot polymer fibers. These fibers were placed on the receiver system, formed into a fleece layer and while cooling down the fibrils were sticking together. The result is a stable non-woven polymer.
  • the thickness of the nonwoven fabric was controlled by the rate of receiving a pile forming at the outlet of the spray nozzle. Control of the size of the fibers was achieved by appropriately selecting the temperature of the molten polymer blend, the temperature of the air stream used in forming the fiber head and the proportion of air flow directed to the polymer fibers forming head.
  • the resulting nonwoven fabric was subjected to filtration tests using a test aerosol. The test results averaged from the measurements of five samples are shown in Table 3. The tests were subjected obtained nonwovens flat sample area of 50.2 cm 2 at air flow of 30 l/min.
  • the granulates of a mixture ofnbpolypropylene and Nylon 66 in a suitable weight ratio were introduced.
  • the two polymers were melted and mixed. No studies were done whether the system was a homogeneous or heterogeneous mixture.
  • the molten, liquid mixture was further pumped to the spray head where the melt blown formed into a hot polymer fibers. These fibers were placed on the receiver system, formed into a fleece layer and while cooling down the fibrils were sticking together. The result is a stable non-woven polymer.
  • the thickness of the nonwoven fabric was controlled by the rate of receiving a pile forming at the outlet of the spray nozzle. Control of the size of the fibers was achieved by appropriately selecting the temperature of the molten polymer blend, the temperature of the air stream used in forming the fiber head and the proportion of air flow directed to the polymer fibers forming head.
  • the resulting nonwoven fabric was subjected to filtration tests using a test aerosol. The test results averaged from the measurements of five samples are shown in Table 4. The tests were subjected obtained nonwovens flat sample area of 50.2 cm 2 at air flow of 30 l/min.
  • the thickness of the nonwoven fabric was controlled by the rate of receiving a pile forming at the outlet of the spray nozzle. Control of the size of the fibers was achieved by appropriately selecting the temperature of the molten polymer blend, the temperature of the air stream used in forming the fiber head and the proportion of air flow directed to the polymer fibers forming head.
  • the resulting nonwoven fabric was subjected to filtration tests using a test aerosol. The test results averaged from the measurements of five samples are shown in Table 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Textile Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Filtering Materials (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

La présente invention se rapporte à un procédé pour la fabrication d'un matériau filtrant plat, à un matériau filtrant plat formé à partir de mélanges de polymères, en particulier un matériau filtrant plat obtenu suivant le procédé selon l'invention, et à un filtre comprenant un matériau filtrant plat. Par la sélection appropriée du système de polymères de départ, le procédé pour l'obtention d'un matériau filtrant plat, qui est caractérisé par une haute efficacité de filtration grâce à la production de charges triboélectriques en continu sur des fibrilles au niveau de leur point de contact, a été obtenu. Ce matériau a une efficacité de filtration améliorée par comparaison avec les fibres de polypropylène non tissées planes classiques.
PCT/PL2014/000154 2014-12-19 2014-12-23 Procédé pour la fabrication d'un matériau filtrant plat et matériau filtrant plat formé à partir de mélanges de polymères WO2016099306A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PLP.410672 2014-12-19
PL410672A PL410672A1 (pl) 2014-12-19 2014-12-19 Płaski materiał filtracyjny z blend polimerowych

Publications (1)

Publication Number Publication Date
WO2016099306A1 true WO2016099306A1 (fr) 2016-06-23

Family

ID=52347380

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/PL2014/000154 WO2016099306A1 (fr) 2014-12-19 2014-12-23 Procédé pour la fabrication d'un matériau filtrant plat et matériau filtrant plat formé à partir de mélanges de polymères

Country Status (2)

Country Link
PL (1) PL410672A1 (fr)
WO (1) WO2016099306A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023285211A1 (fr) * 2021-07-14 2023-01-19 Neenah Gessner Gmbh Matériau filtrant comprenant un non-tissé de fusion-soufflage et son utilisation

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3801400A (en) * 1972-03-24 1974-04-02 Celanese Corp Varying density cartridge filters
EP0080274A2 (fr) * 1981-11-23 1983-06-01 Imperial Chemical Industries Plc Procédé pour le filage au fondu d'un mélange d'un polymère constituant la fibre et un polymère incompatible et fibres filés par ce procédé
US6573205B1 (en) * 1999-01-30 2003-06-03 Kimberly-Clark Worldwide, Inc. Stable electret polymeric articles
US6759356B1 (en) * 1998-06-30 2004-07-06 Kimberly-Clark Worldwide, Inc. Fibrous electret polymeric articles
US20040245171A1 (en) * 2003-06-05 2004-12-09 Mark Schimmel Fabrication of filter elements using polyolefins having certain rheological properties
US20070131235A1 (en) * 2005-11-14 2007-06-14 Janikowski Eric A Method and apparatus for making filter element, including multi-characteristic filter element
WO2011133394A1 (fr) * 2010-04-22 2011-10-27 3M Innovative Properties Company Voiles de nanofibres non tissés contenant des matières particulaires chimiquement actives et leurs procédés de fabrication et d'utilisation

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3801400A (en) * 1972-03-24 1974-04-02 Celanese Corp Varying density cartridge filters
EP0080274A2 (fr) * 1981-11-23 1983-06-01 Imperial Chemical Industries Plc Procédé pour le filage au fondu d'un mélange d'un polymère constituant la fibre et un polymère incompatible et fibres filés par ce procédé
US6759356B1 (en) * 1998-06-30 2004-07-06 Kimberly-Clark Worldwide, Inc. Fibrous electret polymeric articles
US6573205B1 (en) * 1999-01-30 2003-06-03 Kimberly-Clark Worldwide, Inc. Stable electret polymeric articles
US20040245171A1 (en) * 2003-06-05 2004-12-09 Mark Schimmel Fabrication of filter elements using polyolefins having certain rheological properties
US20070131235A1 (en) * 2005-11-14 2007-06-14 Janikowski Eric A Method and apparatus for making filter element, including multi-characteristic filter element
WO2011133394A1 (fr) * 2010-04-22 2011-10-27 3M Innovative Properties Company Voiles de nanofibres non tissés contenant des matières particulaires chimiquement actives et leurs procédés de fabrication et d'utilisation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023285211A1 (fr) * 2021-07-14 2023-01-19 Neenah Gessner Gmbh Matériau filtrant comprenant un non-tissé de fusion-soufflage et son utilisation

Also Published As

Publication number Publication date
PL410672A1 (pl) 2016-06-20

Similar Documents

Publication Publication Date Title
AU2011301355B8 (en) Highly functional spunbonded fabric made from particle-containing fibres and method for producing same
JP5819832B2 (ja) ナノ繊維ウェブを形成するためのノズル、装置、システム及び方法、並びにこの方法によって作製される物品
US4547420A (en) Bicomponent fibers and webs made therefrom
US4795668A (en) Bicomponent fibers and webs made therefrom
US6057256A (en) Web of biocomponent blown fibers
JP6011526B2 (ja) 混繊不織布とこれを用いてなる濾材
CN103717796B (zh) 混纤长纤维无纺布、使用其的过滤器以及空气过滤器
CN104755665B (zh) 无纺布结构体及其制造方法
JP2015007303A (ja) 複合不織布ウェブ並びにこれの製造及び使用方法
EP3157650A1 (fr) Toiles d'électret comportant des additifs d'optimisation de charge
CN112239920B (zh) 一种功能性熔喷材料的制备方法
CN102505347A (zh) 应用超临界流体熔喷纺丝制备微孔纤维非织造布的方法
KR101549498B1 (ko) 선풍기용 공기정화커버
EP1471176B1 (fr) Procede de production d'electret
US10501876B2 (en) Highly functional spunbonded fabric made from particle-containing fibres and method for producing same
WO2016099306A1 (fr) Procédé pour la fabrication d'un matériau filtrant plat et matériau filtrant plat formé à partir de mélanges de polymères
JP6779718B2 (ja) 機能性粉体を保持した不織布及びその製造方法
KR101350817B1 (ko) 높은 벌키성을 갖는 멜트블로운 부직포 및 그의 제조방법
CN111334935A (zh) 一种纺粘长丝静电骨架过滤材料及其制备方法和用途
CN117569012A (zh) 一种原位纳米成纤持久驻极增韧熔喷材料及其制备方法
CN111206293A (zh) 一种可打折的双组分滤材及其制备方法和用途
CN116371084A (zh) 一种可降解的纺黏过滤材料及其制备方法
CN115819931A (zh) 一种可生物降解熔喷非织造布材料及其制备方法和应用
JP2024024459A (ja) 珪藻土粒子含有繊維からなるバスマット
JP2015161041A (ja) 混繊不織布

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14827285

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14827285

Country of ref document: EP

Kind code of ref document: A1