EP1771614A1 - Pieces fibreuses moulees a liaison duroplastique et procede de realisation - Google Patents

Pieces fibreuses moulees a liaison duroplastique et procede de realisation

Info

Publication number
EP1771614A1
EP1771614A1 EP05772899A EP05772899A EP1771614A1 EP 1771614 A1 EP1771614 A1 EP 1771614A1 EP 05772899 A EP05772899 A EP 05772899A EP 05772899 A EP05772899 A EP 05772899A EP 1771614 A1 EP1771614 A1 EP 1771614A1
Authority
EP
European Patent Office
Prior art keywords
fiber
binder
adsorbent
molded
duroplastgebundene
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP05772899A
Other languages
German (de)
English (en)
Inventor
Franz Joseph MÜLLER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hexion GmbH
Original Assignee
Hexion Speciality Chemicals GmbH
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 Hexion Speciality Chemicals GmbH filed Critical Hexion Speciality Chemicals GmbH
Publication of EP1771614A1 publication Critical patent/EP1771614A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/407—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties containing absorbing substances, e.g. activated carbon
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/60—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in dry state, e.g. thermo-activatable agents in solid or molten state, and heat being applied subsequently
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249924—Noninterengaged fiber-containing paper-free web or sheet which is not of specified porosity
    • Y10T428/24994—Fiber embedded in or on the surface of a polymeric matrix
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249924—Noninterengaged fiber-containing paper-free web or sheet which is not of specified porosity
    • Y10T428/24994—Fiber embedded in or on the surface of a polymeric matrix
    • Y10T428/24995—Two or more layers
    • Y10T428/249952—At least one thermosetting synthetic polymeric material layer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y10T428/2964—Artificial fiber or filament
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y10T428/2971—Impregnation

Definitions

  • the invention relates to thermoset bonded fiber molded parts made of fiber material based on natural and / or synthetic fibers, which is bound by means of a thermosetting binder.
  • Moldings made of fibers are e.g. as climate-regulating sound absorption parts and moldings with high surface and splinter resistance u.a. used in automotive engineering. Usually, such moldings are produced by compression molding and simultaneous curing of phenolic resin bonded fiber layers (nonwovens).
  • thermoset-bonded fiber moldings where on the one hand the good mechanical, sound absorption and fire properties the phenolic resin-bonded fiber moldings are retained, but where possible any phenol resin-related odor is eliminated.
  • thermoset-bonded fiber molded parts in which at least one adsorbent has been embedded on the surface and / or inside the fiber molding during the process of pre- and / or curing of the thermosetting binder.
  • thermoset bonded fiber molding under pressure and temperature
  • the capacity of the adsorbent is still sufficient to subsequently in the use of the Fiber molded part to absorb odor-forming products.
  • thermosetting binder it is particularly preferred if the adsorbent in a concentration of 1 to 30 parts by weight, preferably 15 to 20 parts by weight, based on the thermosetting binder is included.
  • the particle size of the adsorbent is adapted to that of the binder, which means that the particle size deviation from the binder should not exceed ⁇ 20%.
  • adsorbent various known from the prior art materials may be used, such as. As silica gel, zeolites or aluminosilicates. However, it is particularly preferred if the adsorbent is activated carbon. The specific properties of the activated carbon cause almost no changes in the flow behavior, in the reactivity or in the melting behavior during the production of the thermoset-bonded fiber molding.
  • thermosetting binders it is possible to use all self-curing resins or resins provided with hardener or curing catalyst, which harden above a certain temperature to give a high-polymer product.
  • Useful resins include diallyl phthalate, epoxy, urea, melamine, melamine-urea, melamine-phenolic, phenolic and unsaturated polyester resins, and combinations thereof.
  • Preferred binders are those based on phenolic resin and / or epoxy resin and / or epoxy-polyester resin mixtures, wherein different compositions may be present. Also residues from the paint industry, so-called powder coating residues can be used.
  • binders based on phenolic resin it is possible to use all condensation products of phenolic compounds and aldehydes, in particular phenol, cresol or xylenol and formaldehyde, both resols and customary novolak-hardener mixtures, in particular novolak-hexamethylenetetramine mixtures.
  • the phenolic resins used are usually in powder form.
  • Binder based on epoxy resin are usually powdery mixtures of epoxy compounds having at least two epoxide groups per molecule and a curing agent.
  • Preferred hardeners are latent hardeners or at least those which allow sufficient working time between the time of mixing and hardening. Examples of these are acid anhydrides, imidazole derivatives, but preferably Novo lake or metal complex compounds as described e.g. from EP-B 0 518 908 are known.
  • the adsorbent is preferably used in combination, i. introduced in or on the fiber material in admixture with the thermosetting binder.
  • no additional process step is required to equip the fiber molding with the adsorbent.
  • inorganic fibers such as. "Glass fibers are used as well as organic fibrous materials or any fiber mixtures.
  • organic fibers such as wool, cotton, viscose staple, jute, flax, hemp,
  • Polyester or acrylic fibers and mixtures thereof are examples thereof.
  • a large part of the fiber material used is obtained by a ripping process from textile waste.
  • These fibers are mixed with the respective binders by processes known per se (eg aerodynamic process, carding process) and are laid to form individual fiber layers (nonwovens, for example carded webs).
  • the ratio of binder to fibrous material can vary depending on the application and is between 10 to 40 to 90 - 60.
  • the individual fiber layers or so produced scrims are cut in a conventional manner and can be either pre-cured and only at a later date are cured under molding, or the scrims are immediately cured as planed at temperatures above the curing temperatures of the thermosetting binder.
  • thermoset bonded fiber molding is preferably carried out in the aerodynamic process.
  • the prefoamed fiber material is further divided, detected by an air flow, transported and placed on a perforated screen continuously to the fleece.
  • the binder and the adsorbent are simultaneously and / or separately from each other in powder form via rollers, vibrating troughs or similar dosing fed into the nonwoven.
  • turbulence ensures intensive and uniform distribution of the binder in the nonwoven material.
  • the now binder-containing fiber material under suction is again brought together on the cross section of the fiber web in a gap formed between suction rolls and deposited again to the fleece.
  • This nonwoven web is briefly heated so that the thermosetting binders melt and fix on the fiber but do not harden. Thereafter, the nonwoven web is cooled and made up. Finally, the semifinished products thus produced, optionally under molding, are pressed and hardened in a manner known per se, it also being possible for a plurality of these semifinished products to be superimposed on one another and pressed together and hardened.
  • the curing of the binder and thus the final solidification of the fiber webs to the nonwoven fabric can also be carried out by various techniques (hot-press method or preferably the hot pressing method).
  • hot pressing method the nonwoven is pre-dried in the hardening channel at lower temperatures / precured and deformed accordingly in subsequent hot pressing.
  • the binder Bakelite® PF 7077 TP (product of Bakelite AG, Germany) was admixed with the stated amounts of activated carbon (based on the binder), this mixture was applied to the fiber material, distributed in the nonwoven fabric and then pressed at 190 ° C. for 5 min ., So that the curing of the binder takes place.
  • the component was then tempered for 5 h at 80 ° C or 100 ° C and analyzed by gas chromatography. The values given represent the area average among the curves from 3 measurements:
  • thermosetting fiber molded parts produced by conventional processes will not release odor-causing substances under extreme conditions (hot, humid air) during use. It was not possible to record losses in other properties such as mechanical, sound absorption and fire properties.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Reinforced Plastic Materials (AREA)
  • Laminated Bodies (AREA)
  • Nonwoven Fabrics (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

La présente invention concerne des pièces fibreuses moulées à liaison duroplastique réalisées à partir d'une matière fibreuse à base de fibres naturelles et/ou de fibres synthétiques, qui est liée par un liant duroplastique. Pour permettre la réalisation de pièces fibreuses moulées à liaison duroplastique qui d'une part conservent les bonnes propriétés mécaniques, propriétés d'absorption sonore et d'ignifugation, des pièces fibreuses moulées à liaison par résine phénolique, et qui d'autre part sont débarrassées au maximum de toute formation d'odeur liée à la résine phénolique, au moins un agent d'absorption est noyé à la surface et/ou à l'intérieur de la pièce fibreuse moulée au cours du processus de prédurcissement et/ou de durcissement du liant duroplastique.
EP05772899A 2004-07-15 2005-07-14 Pieces fibreuses moulees a liaison duroplastique et procede de realisation Withdrawn EP1771614A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200410034323 DE102004034323A1 (de) 2004-07-15 2004-07-15 Duroplastgebundene Faserformteile und Verfahren zu ihrer Herstellung
PCT/EP2005/007659 WO2006008062A1 (fr) 2004-07-15 2005-07-14 Pieces fibreuses moulees a liaison duroplastique et procede de realisation

Publications (1)

Publication Number Publication Date
EP1771614A1 true EP1771614A1 (fr) 2007-04-11

Family

ID=35160044

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05772899A Withdrawn EP1771614A1 (fr) 2004-07-15 2005-07-14 Pieces fibreuses moulees a liaison duroplastique et procede de realisation

Country Status (10)

Country Link
US (1) US8012575B2 (fr)
EP (1) EP1771614A1 (fr)
KR (1) KR101221731B1 (fr)
CN (1) CN101068965B (fr)
CA (1) CA2584298C (fr)
DE (1) DE102004034323A1 (fr)
MX (1) MX2007000220A (fr)
RU (1) RU2379392C2 (fr)
WO (1) WO2006008062A1 (fr)
ZA (1) ZA200609309B (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102418239A (zh) * 2011-09-13 2012-04-18 张陆贤 一种隔热隔音减震纤维毡的制备方法
JP6609898B2 (ja) * 2013-10-01 2019-11-27 セイコーエプソン株式会社 シート製造装置、シート製造方法、及びこれらにより製造されるシート、並びに、これらに用いる複合体、その収容容器、及び複合体の製造方法
JP6127901B2 (ja) * 2013-10-21 2017-05-17 セイコーエプソン株式会社 シート製造装置、シート製造方法
DE102016224296A1 (de) * 2016-12-06 2018-06-07 Eberspächer Catem Gmbh & Co. Kg Elektrische heizvorrichtung
KR102500567B1 (ko) 2016-12-16 2023-02-20 플로우 드라이 테크놀로지, 인코포레이티드 고체 형태 흡착제
CN110302755B (zh) * 2019-07-02 2022-09-27 江苏申杰活性炭纤维应用科技有限公司 一种干法改性活性炭纤维gacf复合材料及其制备方法

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Also Published As

Publication number Publication date
US20100285314A1 (en) 2010-11-11
US8012575B2 (en) 2011-09-06
WO2006008062A1 (fr) 2006-01-26
KR20070058450A (ko) 2007-06-08
CN101068965B (zh) 2012-12-05
CA2584298A1 (fr) 2006-01-26
RU2379392C2 (ru) 2010-01-20
RU2007105556A (ru) 2008-08-20
ZA200609309B (en) 2008-06-25
CN101068965A (zh) 2007-11-07
DE102004034323A1 (de) 2006-02-16
CA2584298C (fr) 2013-01-29
KR101221731B1 (ko) 2013-01-11
MX2007000220A (es) 2007-12-06

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