DE19528365A1 - Shock-absorbing material used in e.g. seating - Google Patents

Shock-absorbing material used in e.g. seating

Info

Publication number
DE19528365A1
DE19528365A1 DE19528365A DE19528365A DE19528365A1 DE 19528365 A1 DE19528365 A1 DE 19528365A1 DE 19528365 A DE19528365 A DE 19528365A DE 19528365 A DE19528365 A DE 19528365A DE 19528365 A1 DE19528365 A1 DE 19528365A1
Authority
DE
Germany
Prior art keywords
shock
fibers
absorbing material
solvent
layered silicate
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.)
Ceased
Application number
DE19528365A
Other languages
German (de)
Inventor
Diethelm Dipl Chem Dr R Bitzer
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19528365A priority Critical patent/DE19528365A1/en
Publication of DE19528365A1 publication Critical patent/DE19528365A1/en
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
    • B60R19/20—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact containing mainly gas or liquid, e.g. inflatable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/02—Internal Trim mouldings ; Internal Ledges; Wall liners for passenger compartments; Roof liners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
    • B60R19/22—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact containing mainly cellular material, e.g. solid foam
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/22—Expanded, porous or hollow particles
    • C08K7/24—Expanded, porous or hollow particles inorganic
    • C08K7/26—Silicon- containing compounds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/006—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium characterised by the nature of the damping medium, e.g. biodegradable

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Artificial Filaments (AREA)

Abstract

Shock-absorbing material is produced by extruding thermoplastic synthetic resin together with commercial organically modified dry layered silicate (smectite, bentonite, hectorite, and/or montmorillonite) swelling with organic solvent, treating and subjecting to a shock

Description

In Sitzen, tragenden Metallstrukturen, in Vertiefungen der Karosserie, in Anbauteilen aus Kunststoffen, in Verkleidungen im Innenraum, in Integralsitzen, Stoßfängern, Sturzhelmen usw. lassen sich stoßabmildernde Materialien verwenden.In seats, supporting metal structures, in depressions of the Body, in add-on parts made of plastics, in cladding in the interior, in integral seats, bumpers, crash helmets, etc. shock-absorbing materials can be used.

Thermoplastische Kunststoffe, wie z. B. Zelluloseacetat, Poly­ styrol, Acrylnitril-Butadien-Styrol-Mischpolymerisat, Polyethy­ len oder -propylen, Polyvinylchlorid , Polyamid usw. werden ge­ meinsam mit trockenen organisch modifiziertem Schichtsilicat extrudiert. Vorzugsweise werden die organisch modifizierten Schichtsilicate mit den Thermoplasten als Fasern gewonnen. Der Anteil der organisch modifizierten Schichtsilicate an den Thermo­ plasten beträgt mindestens 2 Gew.%. Die Thermoplaste werden nach dem Extrudieren mit den organisch modifizierten Schichtsilicaten mit einem aliphatischen oder niedrig bis hochpolaren Lösemittel der Zähigkeit 0,2-15,0 mPa·s bei 20°C behandelt (vgl. Taschen­ buch für Chemiker und Pysiker, von J.D′Ans und E. Lux, Springer Verlag, 1943, Seite 1094-1097) und gequollen. Zur Erhöhung der Zähigkeit organischer Flüssigkeiten wird Ethylencellulose ver­ wendet, die auch das freiwerdende organische Lösemittel auf­ nimmt. Als organische Flüssigkeit wird z. B. Heptan, Octan, Nonan, iso-Amylalkohol, Propionsäureester, Olivenöl, Paraffinum liquid, sog. "Neutralöle" (der Fa. Dynamit Nobel, D-53842 Troisdorf- Oberlar) benutzt. Thermoplastic plastics, such as. B. cellulose acetate, poly styrene, acrylonitrile-butadiene-styrene copolymer, polyethylene len or propylene, polyvinyl chloride, polyamide, etc. are ge together with dry organically modified layered silicate extruded. Preferably the organically modified Layered silicates obtained with the thermoplastics as fibers. Of the Share of organically modified layered silicates in the thermo plastic is at least 2% by weight. The thermoplastics are after extrusion with the organically modified layered silicates with an aliphatic or low to highly polar solvent the toughness is treated at 0.2-15.0 mPa · s at 20 ° C (see pockets book for chemists and physicists, by J.D′Ans and E. Lux, Springer Verlag, 1943, page 1094-1097) and swollen. To increase the Viscosity of organic liquids is ver ethylene cellulose that also releases the released organic solvent takes. As an organic liquid z. B. heptane, octane, nonane, iso-amyl alcohol, propionic acid ester, olive oil, paraffin liquid, so-called "neutral oils" (from Dynamit Nobel, D-53842 Troisdorf- Oberlar) used.  

Bei der Stoßeinwirkung wird organisches Lösemittel freigesetzt, dadurch wird der Stoß durch das gelierte Schichtsilicat und das darin verteilte Lösemittel abgemildert. Dieser Stoßverlauf kann für die Sicherheit der Materialbenutzer ganz entscheidend sein.Organic solvent is released on impact, this eliminates the impact of the gelled layered silicate and the distributed solvents softened. This bump course can be crucial for the safety of material users be.

Der Anteil der organisch modifizierten Schichtsilicate beträgt vorzugsweise 2-45%, bezogen auf den verwendeten Thermoplast.The proportion of organically modified phyllosilicates is preferably 2-45%, based on the thermoplastic used.

Organisch modifizierte Schichtsilicate sind im Handel als Ben­ tonite 27, 34, 38, SD-1, SD-2, SD-3 der Kronos Titan GmbH, D-51373 Leverkusen oder Tixogel der Süd-Chemie AG, D-80333 München.Organically modified layered silicates are commercially available as Ben tonite 27, 34, 38, SD-1, SD-2, SD-3 from Kronos Titan GmbH, D-51373 Leverkusen or Tixogel from Süd-Chemie AG, D-80333 Munich.

In Anwesenheit organischer Flüssigkeiten zusammen mit den Ther­ moplasten wird beim Extrudieren ein Entgasungsextruder verwendet.In the presence of organic liquids together with the Ther a degassing extruder is used for extrusion.

BeispieleExamples Beispiel 1example 1

3 kg Zelluloseacetat, 600 g Zellulosepulver und 280 g Bentone SD-1 der Kronos Titan GmbH in D-51373 Leverkusen werden gründlich vermischt und gemeinsam extrudiert. Das Granulat wird mit 800 ml Ethylalkohol, dem 150 ml Wasser zugegeben wurden, vermischt und während 10 min im Hochleistungsscheibenrührgerät dispergiert. Dann werden 500 ml Nonan eingerührt. Die Mischung bleibt über Nacht stehen, in Kautschuk- oder Kunststoffhülsen von je 1/10 g gefüllt, in Stoßfängern angebracht und einem Stoß ausgesetzt.3 kg of cellulose acetate, 600 g of cellulose powder and 280 g of Bentone SD-1 from Kronos Titan GmbH in D-51373 Leverkusen will be thorough mixed and extruded together. The granules are filled with 800 ml Ethyl alcohol, to which 150 ml of water was added, mixed and dispersed in a high-performance disk mixer for 10 min. Then 500 ml of nonane are stirred in. The mixture remains Stand at night, in rubber or plastic sleeves of 1/10 g each filled, installed in bumpers and subjected to a shock.

Beispiel 2Example 2

500 g Polyamidfasern, die mit einem Zusatz von 42 g trockenem Bentonit SD-1 gemeinsam versponnen wurden, werden in eine Mischung aus 30 ml Ethanol, 400 ml iso-Amylalkohol, 15 ml Wasser getaucht, über Nacht stehen gelassen, zur Aufquellung des Bentonit SD-1 und mit 150 g Zellulosegarn verwirkt. Das Material, zu Überzügen verarbeitet, wird danach einem Stoß ausgesetzt.500 g of polyamide fibers with the addition of 42 g of dry Bentonite SD-1 spun together are mixed from 30 ml ethanol, 400 ml iso-amyl alcohol, 15 ml water immersed,  Let stand overnight to swell the bentonite SD-1 and forfeited with 150 g of cellulose yarn. The material to cover processed, is then subjected to a shock.

Claims (4)

1. Stoßabmilderndes Material, dadurch gekennzeich­ net, daß thermoplastische Kunststoffe gemeinsam mit handels­ üblichen, organisch modifizierten, trockenen Schichtsilicaten (Smectit, Bentonit, Hectorit und/oder Montmorillonit) extrudiert, mit organischem Lösemittel gequollen und behandelt und einem Stoß ausgesetzt werden.1. Shock-mitigating material, characterized in that thermoplastics are extruded together with commercially available, organically modified, dry sheet silicates (smectite, bentonite, hectorite and / or montmorillonite), swollen with organic solvent and treated and subjected to a shock. 2. Stoßabmilderndes Material, nach Anspruch 1, dadurch gekenn­ zeichnet, daß thermoplastischer Kunststoff mit mindestens 2 Gew.% (bezogen auf das Gewicht des Thermoplast) eines organisch modifizierten Schichtsilicats gemeinsam extrudiert und anschließ­ end das Granulat oder Fasern mit in einem aliphatischen oder niedrig bis hochpolaren Lösemittel der Zähigkeit 0,2-15,0 mPa·s (Millipascalsekunde) bei 20°C sowie einem Anteil von etwa 2-10% eines niederen aliphatischen Alkohols oder Ethylencarbonats und 1-2% Wasser, bezogen auf die Gesamtmenge des Lösemittels, disper­ giert oder verteilt wird und dann diese gelierte Mischung mit dem Lösemittel in eine Umhüllung abgefüllt und einem Stoß ausgesetzt wird. 2. shock-absorbing material, according to claim 1, characterized records that thermoplastic with at least 2% by weight (based on the weight of the thermoplastic) of an organic modified layered silicate extruded together and then end the granules or fibers in an aliphatic or low to highly polar solvents with a toughness of 0.2-15.0 mPa · s (Millipascal second) at 20 ° C and a share of about 2-10% a lower aliphatic alcohol or ethylene carbonate and 1-2% water, based on the total amount of solvent, disper is gated or distributed and then this gelled mixture with the Filled with solvent in an envelope and subjected to an impact becomes.   3. Stoßabmilderndes Material nach Anspruch 1 und 2, dadurch gekennzeichnet, daß Fasern aus Polyamid, Polystyrol , Polypropylen, Polyethylen, Zelluloseacetat mit einem Zusatz von 2-45% eines organisch modifizierten Schichtsilicats ver­ sponnen und anschließend die Fasern, enthaltend die organisch modifizierten Schichtsilicate, durch aliphatische oder niedrig bis hochpolare Lösemittel der Zähigkeit 0,2-15,0 mPa·s bei 20°C , einen Wasseranteil von etwa 2%, gequollen werden.3. shock-absorbing material according to claim 1 and 2, characterized characterized in that fibers made of polyamide, polystyrene, Polypropylene, polyethylene, cellulose acetate with an addition of 2-45% of an organically modified layered silicate ver spun and then the fibers containing the organic modified layered silicates, by aliphatic or low to highly polar solvents with a toughness of 0.2-15.0 mPa · s 20 ° C, a water content of about 2%. 4. Stoßabmilderndes Material, nach Anspruch 1-3, dadurch ge­ kennzeichnet, daß Zellulosefasern, Polyamid- und/oder ABS-Fasern, die einen Zusatz von 2-45% eines durch Lösemittel und 2% Wasser gequollenen organisch modifizierten Schichtsilicats (die 2-45% des Schichtsilicats sind auf trockenes Schicht­ silicat bezogen) enthalten, gemeinsam mit thermoplastischen Fasern versponnen werden.4. shock-absorbing material, according to claims 1-3, characterized ge indicates that cellulose fibers, polyamide and / or ABS fibers that add 2-45% of one by solvent and 2% water swollen organically modified layered silicate (The 2-45% of the layered silicate is on a dry layer contain silicate), together with thermoplastic Fibers are spun.
DE19528365A 1995-06-09 1995-08-02 Shock-absorbing material used in e.g. seating Ceased DE19528365A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19528365A DE19528365A1 (en) 1995-06-09 1995-08-02 Shock-absorbing material used in e.g. seating

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1995121154 DE19521154A1 (en) 1995-06-09 1995-06-09 Impact softening material used, e.g., in cars, aeroplanes
DE19528365A DE19528365A1 (en) 1995-06-09 1995-08-02 Shock-absorbing material used in e.g. seating

Publications (1)

Publication Number Publication Date
DE19528365A1 true DE19528365A1 (en) 1997-02-27

Family

ID=7764063

Family Applications (2)

Application Number Title Priority Date Filing Date
DE1995121154 Withdrawn DE19521154A1 (en) 1995-06-09 1995-06-09 Impact softening material used, e.g., in cars, aeroplanes
DE19528365A Ceased DE19528365A1 (en) 1995-06-09 1995-08-02 Shock-absorbing material used in e.g. seating

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE1995121154 Withdrawn DE19521154A1 (en) 1995-06-09 1995-06-09 Impact softening material used, e.g., in cars, aeroplanes

Country Status (1)

Country Link
DE (2) DE19521154A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10046298B4 (en) * 2000-09-19 2008-11-20 Technum Gmbh Use of a lightweight material for crash protection

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10046298B4 (en) * 2000-09-19 2008-11-20 Technum Gmbh Use of a lightweight material for crash protection

Also Published As

Publication number Publication date
DE19521154A1 (en) 1996-12-12

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