ES2197393T3 - Composicion de correa de modulo elevado y correas fabricadas a partir de esta. - Google Patents

Composicion de correa de modulo elevado y correas fabricadas a partir de esta.

Info

Publication number
ES2197393T3
ES2197393T3 ES98104155T ES98104155T ES2197393T3 ES 2197393 T3 ES2197393 T3 ES 2197393T3 ES 98104155 T ES98104155 T ES 98104155T ES 98104155 T ES98104155 T ES 98104155T ES 2197393 T3 ES2197393 T3 ES 2197393T3
Authority
ES
Spain
Prior art keywords
parts
rubber
weight per
composition
hnbr
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.)
Expired - Lifetime
Application number
ES98104155T
Other languages
English (en)
Inventor
Daniel Stanley Granatowicz
Matthew Thomas Morris
Mervin Victor Pilkington
Gary Richard Tompkin
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.)
Goodyear Tire and Rubber Co
Original Assignee
Goodyear Tire and Rubber Co
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 Goodyear Tire and Rubber Co filed Critical Goodyear Tire and Rubber Co
Application granted granted Critical
Publication of ES2197393T3 publication Critical patent/ES2197393T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/02Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
    • F16F9/04Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall
    • F16F9/05Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall the flexible wall being of the rolling diaphragm type
    • F16F9/057Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall the flexible wall being of the rolling diaphragm type characterised by the piston
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L9/00Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
    • C08L9/02Copolymers with acrylonitrile
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G15/00Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
    • B65G15/30Belts or like endless load-carriers
    • B65G15/32Belts or like endless load-carriers made of rubber or plastics
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/02Elements
    • C08K3/04Carbon
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00Use of organic ingredients
    • C08K5/04Oxygen-containing compounds
    • C08K5/09Carboxylic acids; Metal salts thereof; Anhydrides thereof
    • C08K5/092Polycarboxylic acids
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00Use of organic ingredients
    • C08K5/04Oxygen-containing compounds
    • C08K5/09Carboxylic acids; Metal salts thereof; Anhydrides thereof
    • C08K5/098Metal salts of carboxylic acids
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00Use of organic ingredients
    • C08K5/04Oxygen-containing compounds
    • C08K5/14Peroxides
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L15/00Compositions of rubber derivatives
    • C08L15/005Hydrogenated nitrile rubber
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L61/00Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
    • C08L61/04Condensation polymers of aldehydes or ketones with phenols only
    • C08L61/06Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16GBELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G1/00Driving-belts
    • F16G1/28Driving-belts with a contact surface of special shape, e.g. toothed
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/02Flame or fire retardant/resistant

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Fluid-Damping Devices (AREA)
  • Belt Conveyors (AREA)
  • Laminated Bodies (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)

Abstract

UNA COMPOSICION DE ALTO MODULO BASADA EN UNA MEZCLA DE UNA GOMA DE ACRILONITRILO BUTADIENO HIDROGENADA QUE HA SIDO MODIFICADA BIEN CON METACRILATO DE ZINC O CON UNA COMBINACION DE OXIDO DE ZINC Y ACIDO METACRILICO, Y UNA GOMA DE ACRILONITRILO BUTADIENO HIDROGENADA SIN MODIFICAR, PARA SU USO EN CORREAS DE TRANSICION SINCRONA SOMETIDAS A ALTAS CARGAS, Y CORREAS HECHAS CON LA MISMA.

Description

Composición de correa de módulo elevado y correas fabricadas a partir de ésta.
Campo de la invención
Esta invención se refiere a una composición elastomérica de módulo elevado particularmente adecuada para su uso en correas de transmisión sincrónica con soporte de carga elevada.
Antecedentes
El uso de caucho de acrilonitrilo-butadieno hidrogenado (HNBR) en correas, particularmente para su uso en la automoción, ha sido sugerido con anterioridad. Ver p. ej. artículos de Trevor A. Brown: "Compounding for Maximum Heat Resistance and Load Bearing Capacity in HNBR Belts", Rubber World magazine, octubre 1993, página 53, y "Using HNBR to Improve Belt Compounds",
\def\x{Rubber {\textamp} Plastics
News}\ul\x
, 7 de junio de 1993, página 45. Ver también la patente US-A-5,405,690. No obstante, no existen sugerencias sobre cómo debería ser la composición.
Fujiwara, en la patente US-A-5,599,246 (y EP-A-674 121), expone el uso de un HNBR modificado, concretamente el uso de ZSC-2295, en la composición de una correa. El HNBR modificado se mezcla con HNBR no modificado, mezclando 10-40 partes en peso del HNBR modificado con 90-60 partes en peso del HNBR no modificado, de modo que la cantidad de metacrilato de zinc se encuentre entre del 4 al 20 por ciento del compuesto de caucho. Fujiwara explica que si la cantidad de metacrilato de zinc es superior a 20 partes en peso de la composición total de caucho, se produce la fatiga del cuerpo de tracción.
Resumen de la invención
Según la práctica de la presente invención, se proporciona una composición elastomérica y una correa de transmisión de energía producidas según se define en las reivindicaciones.
Un ejemplo típico de un HNBR modificado con óxido de zinc y ácido metacrílico está comercialmente disponible como Zetpol ZSC2295 por Nippon Zeon Co. Un HNBR no modificado se encuentra disponible como Zetpol 2020, también por Nippon Zeon Co.
Los co-agentes vulcanizantes de peróxido típicos son trimetacrilato de trimetilolpropano, organosiloxanos trifuncionales, triallil cianurato y triallil isocianurato. Aunque puede emplearse de 0.5 a 10 phr de un co-agente, se prefiere el uso de 3 a 6 phr.
Los peróxidos orgánicos típicos que pueden emplearse con la invención son 1,3-bis(t-butilperoxi-1-propil) benceno, peróxido de dicumilo y \alpha,\alpha-bis(t-butilperoxi) valerato. Aunque puede emplearse de 0.25 a 20 phr de un peróxido, se prefiere el uso de 1.5 a 4.5 phr.
Las resinas fenólicas típicas que pueden emplearse son resinas de fenol formaldehído. Se prefiere una resina de fenol formaldehído termoendurecible modificada con aceite. Aunque puede emplearse de 1 a 20 phr de una resina fenólica, se prefiere el uso de 6 a 12 phr. Se cree que la resina fenólica proporciona un nivel elevado de adhesión al refuerzo en las correas vulcanizadas y que además permite que las correas se construyan con un equipamiento de tratamiento elastomérico convencional sin utilizar disolventes.
Además de los ingredientes arriba catalogados, la composición puede contener otros materiales usados normalmente en la composición del caucho, como productos de relleno, antioxidantes, antiozonantes, ayudantes para el procesamiento, etc. Particularmente, se prefiere de 5 a 50 phr de un negro carbón N330.
Se ha descubierto que la composición de la invención proporciona correas de transmisión sincrónica dentadas que tienen una rigidez suficiente sin el uso de refuerzos de fibra. Como medida de esta característica, se prefiere que el módulo con un alargamiento del 10% sea de 5.2 a 7.25 MPa.
Aunque que se han mostrado ciertas formas de realización y ciertos detalles representativos para ilustrar la invención, para los expertos en esta técnica será evidente que pueden realizarse varios cambios y modificaciones sin alejarse del objetivo de las reivindicaciones.

Claims (5)

1. Composición elastomérica que comprende:
(a)
de 50 a 95 partes en peso por 100 partes de caucho de un HNBR modificado con metacrilato de zinc o con una combinación de óxido de zinc y ácido metacrílico;
b)
de 5 a 50 partes en peso por 100 partes de caucho de un HNBR no modificado;
c)
de 0.5 a 10 partes en peso por 100 partes de caucho de un co-agente vulcanizante de peróxido;
d)
de 0.25 a 20 partes en peso por 100 partes de caucho de un peróxido orgánico; y
e)
de 5 a 50 partes en peso por 100 partes de caucho de negro carbón,
donde la composición está caracterizada por la adición de 1 a 20 partes en peso por 100 partes de caucho de una resina fenólica.
2. Composición según la reivindicación 1, donde el co-agente vulcanizante de peróxido es trimetacrilato de trimetilolpropano.
3. Composición según la reivindicación 1, donde el peróxido es \alpha,\alpha-bis(t-butilperoxi) valerato.
4. Composición según la reivindicación 1 que tiene un módulo con un alargamiento del 10% de 5.2 a 7.25 M Pa.
5. Correa de transmisión de energía producida a partir de una composición elastomérica que comprende:
(a)
de 50 a 95 partes en peso por 100 partes de caucho de un HNBR modificado con metacrilato de zinc o con una combinación de óxido de zinc y ácido metacrílico;
b)
de 5 a 50 partes en peso por 100 partes de caucho de un HNBR no modificado;
c)
de 0.5 a 10 partes en peso por 100 partes de caucho de un co-agente vulcanizante de peróxido;
d)
de 0.25 a 20 partes en peso por 100 partes de caucho de un peróxido orgánico; y
e)
de 5 a 50 partes en peso por 100 partes de caucho de negro carbón;
donde la composición está caracterizada por la adición de 1 a 20 phr de una resina fenólica.
ES98104155T 1997-03-13 1998-03-09 Composicion de correa de modulo elevado y correas fabricadas a partir de esta. Expired - Lifetime ES2197393T3 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US81697397A 1997-03-13 1997-03-13
US08/816973 1997-03-13

Publications (1)

Publication Number Publication Date
ES2197393T3 true ES2197393T3 (es) 2004-01-01

Family

ID=25222061

Family Applications (1)

Application Number Title Priority Date Filing Date
ES98104155T Expired - Lifetime ES2197393T3 (es) 1997-03-13 1998-03-09 Composicion de correa de modulo elevado y correas fabricadas a partir de esta.

Country Status (16)

Country Link
US (2) US6460836B1 (es)
EP (1) EP0864607B1 (es)
JP (1) JPH10251451A (es)
KR (1) KR19980079921A (es)
CN (1) CN1153807C (es)
AR (1) AR011977A1 (es)
BR (1) BR9800846A (es)
CA (1) CA2229629C (es)
CZ (1) CZ294598B6 (es)
DE (1) DE69814222T2 (es)
DK (1) DK0864607T3 (es)
ES (1) ES2197393T3 (es)
HU (1) HU218029B (es)
ID (1) ID20047A (es)
PL (1) PL193038B1 (es)
TW (1) TW591074B (es)

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Publication number Publication date
PL325267A1 (en) 1998-09-14
DE69814222T2 (de) 2004-03-18
US6460836B1 (en) 2002-10-08
BR9800846A (pt) 2000-03-28
HUP9800544A2 (hu) 1998-10-28
DE69814222D1 (de) 2003-06-12
KR19980079921A (ko) 1998-11-25
US6153686A (en) 2000-11-28
CZ294598B6 (cs) 2005-02-16
JPH10251451A (ja) 1998-09-22
HUP9800544A3 (en) 1998-12-28
ID20047A (id) 1998-09-17
CA2229629A1 (en) 1998-09-13
DK0864607T3 (da) 2003-09-01
TW591074B (en) 2004-06-11
CN1153807C (zh) 2004-06-16
EP0864607A1 (en) 1998-09-16
HU9800544D0 (en) 1998-05-28
CA2229629C (en) 2007-08-14
CN1197087A (zh) 1998-10-28
CZ77098A3 (cs) 1998-09-16
HU218029B (hu) 2000-05-28
PL193038B1 (pl) 2007-01-31
AR011977A1 (es) 2000-09-13
EP0864607B1 (en) 2003-05-07

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