WO2009090955A1 - Matériau pour garnitures automobiles intérieures - Google Patents

Matériau pour garnitures automobiles intérieures Download PDF

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Publication number
WO2009090955A1
WO2009090955A1 PCT/JP2009/050377 JP2009050377W WO2009090955A1 WO 2009090955 A1 WO2009090955 A1 WO 2009090955A1 JP 2009050377 W JP2009050377 W JP 2009050377W WO 2009090955 A1 WO2009090955 A1 WO 2009090955A1
Authority
WO
WIPO (PCT)
Prior art keywords
volatile organic
skin material
organic substance
skin
scavenger
Prior art date
Application number
PCT/JP2009/050377
Other languages
English (en)
Japanese (ja)
Inventor
Atsunori Adachi
Masafumi Yamaguchi
Laddawan Lakanaporn
Arnut Rattanapathimakorn
Original Assignee
Toyota Jidosha Kabushiki Kaisha
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 Toyota Jidosha Kabushiki Kaisha filed Critical Toyota Jidosha Kabushiki Kaisha
Publication of WO2009090955A1 publication Critical patent/WO2009090955A1/fr

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Classifications

    • 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
    • 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
    • B60R2013/0287—Internal Trim mouldings ; Internal Ledges; Wall liners for passenger compartments; Roof liners integrating other functions or accessories

Definitions

  • the present invention relates to an automotive interior material that is excellent in trapping performance of volatile organic substances such as aldehydes, does not impair the design of the skin material, and has no toxicity to the human body.
  • water-based acrylic copolymer emulsions and water-based latexes are often used as binders for non-woven fibers used in automobile interior materials such as sheets, floors and trunks.
  • a heat-crosslinkable binder obtained by copolymerizing a functional copolymerization monomer such as N-methylolacrylamide is often used as a method for crosslinking the binder resin in order to increase the hardness, heat resistance and durability of the molded body.
  • Nonwoven fabrics using this heat-crosslinkable binder have improved mechanical properties such as tensile strength, elongation, tear strength, and hardness, as well as improved practical durability such as dimensional stability, water resistance, chemical resistance, and heat resistance.
  • the condensation reaction of the methylol group proceeds when the sheet coated on the fiber is dried and when the polyethylene laminated process is performed on the coated nonwoven fabric surface in the next step.
  • formaldehyde is generated due to the reaction mechanism, and most of the formaldehyde generated during such processing is volatilized out of the system during the drying and heating process, but it is difficult to completely remove it from the non-woven fiber material. It remains and evaporates in the car compartment over time, deteriorating the environment for the human body.
  • non-woven fabric is bonded as a skin material to a base material such as PP / glass mat, cotton felt, corrugated cardboard, urethane cured foam, etc., and used as a laminated molded body.
  • the roof material is a part that is most susceptible to the temperature in summer as a material in a part of an automobile, and heat-resistant deformation is required as a required performance of the laminate.
  • a thermosetting resin type binder is often used from the viewpoint of heat resistance, high rigidity, moldability, and the like.
  • thermosetting powder or thermosetting aqueous solution is mixed in an aqueous dispersion of a thermoplastic resin such as an aqueous solution type such as phenol resin or melamine resin, powder type, acrylic resin emulsion or latex.
  • a thermoplastic resin such as an aqueous solution type such as phenol resin or melamine resin, powder type, acrylic resin emulsion or latex.
  • thermosetting resin binders The molding of the roof material using these thermosetting resin binders is the same as the interior material described above, by impregnating and applying each binder to each structure and drying, or in the case of a powder form binder, it is uniformly applied to the fiber. After the dispersion, a fiber molded body is obtained by thermoforming.
  • the non-woven fabric of the skin material is laminated at the same time with a hot melt resin powder, a hot melt film, a hot melt web, or the like at the time of thermoforming the sheet, or is laminated with an adhesive after molding to form a laminate.
  • Formalin-based polycondensates are used in many of these thermosetting resin binder phenolic resin compositions and melamine resin compositions. Although these resins cause a condensation reaction by heating to produce a three-dimensional cross-linking between molecules to obtain a strong molded body, the generation of formaldehyde is not small. In recent years, various companies have taken measures to reduce formaldehyde emission from molded parts by reducing the generation amount as a low formaldehyde type or using various formalin catchers, but they have not been completely removed.
  • binder resins that are currently used for automobile fiber interior materials can volatilize formaldehyde, which is toxic to the human body. For this reason, studies are being made to eliminate the volatilization of organic substances such as formaldehyde in the binder resin.
  • Patent Document 1 discloses a decorative sheet having a formaldehyde scavenging function, in which a formaldehyde scavenger is contained in one or both of a base sheet and a decorative layer in a decorative sheet composed of a base sheet and a decorative layer. It is disclosed.
  • amides such as dicyandiamide and urea, ethylene urea, propylene urea, 5-hydroxypropylene urea, 5-methoxypropylene urea, 5-methylpropylene urea, parabanic acid (glyoxal monourein) are disclosed.
  • Organic amino compounds such as cyclic alkylene ureas such as 4,5-dimethoxyethylene urea, acid imides and amines are specifically exemplified.
  • Patent Document 2 listed below is a sheet-like material for the purpose of capturing and removing formaldehyde released from building materials into indoor air such as buildings, and preventing unpleasant odors and adverse health effects.
  • the substrate is provided with a pattern printing layer and one or more resin layers, and at least one of the one or two or more resin layers, particularly at least the uppermost layer.
  • a decorative sheet is disclosed in which a formaldehyde scavenger is contained in a resin layer.
  • Patent Document 2 discloses, as formaldehyde scavengers, amino compounds such as dicyandiamide and melamine, amides such as urea, barbituric acid and semicarbazide hydrochloride, and nitrogen-containing compounds such as amino acids such as glutamate, glycine and alanine. Is specifically illustrated.
  • Patent Document 1 and Patent Document 2 react with formaldehyde and the product does not dissociate formaldehyde, it has a certain effect as a formaldehyde scavenger.
  • the skin material When used as a skin material, the skin material may be colored or discolored, and the design of the original skin material may be impaired.
  • adsorbents of aldehydes have been imparted to fiber products and plastic products by kneading, coating, dipping, etc., but since each adsorbent has a large particle size and is opaque, It can be applied only to a portion of the back side of the skin material that does not impair the appearance quality, and it can be used only in a limited color.
  • the unavoidable application on the back side means that unidirectional volatile organic substances that can be generated and diffused can be adsorbed, but volatile organic substances that diffuse in the room cannot be captured. Indicates that there is.
  • an object of the present invention is to provide an automotive interior material that is excellent in capturing performance of volatile organic substances such as aldehydes, does not impair the design of the skin material, and does not have toxicity to the human body.
  • VOC catcher volatile organic substance scavenger
  • the present invention is an invention of an automobile interior material comprising at least a base material and a skin material, and includes a volatile organic substance scavenger on the surface and / or the back surface of the skin material, and the volatile organic material.
  • the scavenger is an aminosilane reaction product of silicon dioxide having an average particle diameter of 1 to 200 nm.
  • aminosilane is a general formula: Y n SiX (4-n) (wherein X is an alkoxy group, acetyl group or halogen, and Y is an amino group or an alkyl group substituted by at least one amino group And n is an integer from 1 to 3.
  • X is an alkoxy group
  • X is particularly preferably a methoxy group, an ethoxy group, a propoxy group, or a butoxy group.
  • Y is an alkyl group substituted with at least one amino group
  • Y is particularly preferably an aminomethyl group, an aminoethyl group, an aminopropyl group, or an aminobutyl group.
  • the volatile organic substance scavenger used in the present invention has an extremely small average particle size of nano-order and ensures transparency. In this respect, the conventional volatile organic substance scavenger having a large average particle diameter is superior to the emulsion.
  • the volatile organic substance scavenger used in the present invention supplements volatile organic substances such as aldehydes such as formaldehyde and acetaldehyde, and volatile organic compounds (VOC) such as trichloroethylene, tetrachloroethylene, toluene, benzene and xylene. Can do.
  • aldehydes such as formaldehyde and acetaldehyde
  • VOC volatile organic compounds
  • the automotive interior material of the present invention is basically a laminated structure comprising a base material and a skin material, and, if desired, a spacer, a non-woven fabric on the back surface, a ventilation prevention film, a glass mat and the like.
  • a skin material a well-known nonwoven fabric is preferably illustrated as a skin material of the conventional interior material for motor vehicles.
  • a volatile organic substance scavenger is applied, spread and impregnated on the surface and / or back surface of the skin material by various methods.
  • a resin emulsion containing a volatile organic substance scavenger is attached to the skin material by foam coating
  • the volatile organic substance scavenger is attached to the surface and / or back surface of the nonwoven fabric without crushing the mesh of the nonwoven fabric. It is preferable because the design properties such as the original color, texture, and touch of the nonwoven fabric are not impaired.
  • the automobile part to which the automobile interior material of the present invention is applied is not limited, it is particularly preferable that the automobile part is mounted as a roof material on a ceiling part that is exposed to high temperatures and is likely to volatilize volatile organic substances.
  • Transparency of the skin material is ensured by including an aminosilane reaction product of silicon dioxide having an average particle diameter of 1 to 200 nm as a volatile organic substance scavenger on the surface and / or back surface of the skin material of automobile interior materials.
  • the design properties are not impaired, and volatile organic substances such as aldehydes can be efficiently removed and reduced.
  • the interior of the automobile interior material In addition to capturing volatile organic substances emitted from the vehicle, volatile organic substances emitted from other parts in the automobile interior can be captured.
  • the ceiling skin has a relatively large area even in a car.
  • the aminosilane reaction product of silicon dioxide having an average particle diameter of 1 to 200 nm used as a volatile organic substance scavenger in the present invention has been confirmed to have low oral toxicity and skin irritation, and can come into contact with humans. Even if it exists on the inner surface of a car, it has excellent safety.
  • the product part of the automobile interior material of the present invention is not particularly limited, and examples thereof include pillar trim, door trim, instrument panel, meter hood, console, ceiling material, and the like.
  • the interior material for motor vehicles functions also as a buffer material for motor vehicles by using a buffering raw material for a base material or a skin material.
  • FIG. 1 shows an example of a cross-sectional structure of a roof material (ceiling material) among automotive interior materials.
  • a non-woven fabric 3 From the outside of the vehicle to the inside of the room, a non-woven fabric 3, a ventilation prevention film 4, a glass mat 5, a base material 6 such as a hard urethane layer, a glass mat 7, and a skin material 9 such as a non-woven fabric through a spacer 2 on a car roof 1 are stacked.
  • the surface material 10 and / or the back surface 8 of the skin material 9 contains a volatile organic substance scavenger.
  • the skin material 9, the skin material surface 10, and the skin material back surface 8 are combined to form the entire skin material 11.
  • aldehydes generated from the inside of the roof are captured by the skin material before diffusing from the inside of the roof to the indoor side.
  • volatile organic substances such as aldehydes generated from other parts in the room are efficiently captured by the skin material.
  • Volatile organic substance scavenger used in the present invention is an aminosilane reaction product of silicon dioxide having an average particle diameter of 1 to 200 nm and has a slightly white transparent appearance.
  • Base material As the base material of the interior material for automobiles, a material formed of a synthetic resin in a shape corresponding to a product part is used.
  • the type of synthetic resin is not particularly limited. Preferred examples include polyethylene, polypropylene, polyester, polystyrene, polyethylene terephthalate (PET), polyvinyl chloride, nylon, polyurethane and the like.
  • the synthetic resin may be close to a rigid body or may have a buffering property. Examples of the synthetic resin having a buffering property include foamed synthetic resins and solid synthetic resins having rubbery elasticity.
  • the substrate may be a single layer structure or a multi-layer (laminated) structure. Although it does not specifically limit as a formation method of a base material, Injection molding, injection press molding, RIM molding, blow molding, stamping molding, slush molding, vacuum molding, etc. can be illustrated preferably.
  • the flexible material used for the skin material of the automobile interior material is not particularly limited. Preferred examples include woven fabric, non-woven fabric, brushed fabric, flocked fabric, synthetic resin sheet, rubber sheet, leather, paper and the like. Further, the skin material may have a single layer structure or a multi-layer (laminated) structure. In the latter case, the same kind of materials may be laminated or different kinds of materials may be laminated. Moreover, you may use a buffering material and a soundproof material for the layer if it is a single layer structure, and for any layer if it is a plurality of layers.
  • gum which is solid but has rubber-like elasticity are illustrated.
  • seat illustrated as the said buffering material functions also as a soundproof material, and a nonwoven fabric etc. are illustrated other than that.
  • the application process of the automotive interior material of the present invention is roughly as follows.
  • roofing skin material Coating, drying and fixing of volatile organic substance scavenger on the surface of roofing skin material (3) Roof base material such as thermoplastic base material and thermosetting base material Molding and bonding together with the above roofing skin material (4) Assembly to the body
  • a coating agent was prepared according to the following composition.
  • Acrylic emulsion (Mitsui Special Chemical Co., Ltd., TTC07, solid content 50%): 50 parts Volatile organic substance scavenger (Nikka Chemical Co., Ltd., KIRAKURU AL-00GT, solid content 20%): 7.5 parts Water: 42.5 parts
  • foaming was performed by blowing air, and the surface side (inside the room) of the roofing skin material was uniformly foam-coated so that the solid content was 20 g / m 2 .
  • This sample was pre-dried on a hot cylinder at 40 ° C. and then heated in a drying furnace at 150 ° C. for 55 seconds.
  • the volatile organic substance scavenger used in the present invention is an aminosilane reaction product of silicon dioxide having an average particle diameter of 1 to 200 nm, is transparent, has oral toxicity of LD50> 200 mg / kg, and skin irritation has P .
  • a cut sample to which no volatile organic substance scavenger is added a cut sample in which volatile organic substance scavenger is 1.9% foam-coated on the surface of the skin material, and a volatile organic substance scavenger to the skin material.
  • a cut sample with 0.7% foam coating on the surface and a cut sample with 2.5% foam coating on the surface of the skin material with a volatile organic substance scavenger were prepared, and the aldehyde adsorption performance was evaluated by the following test procedure.
  • volatile organic substances in automobiles are efficiently reduced, which is useful for health.

Abstract

L'invention concerne un matériau pour garnitures automobiles intérieures qui présente une excellente capacité à capturer les substances organiques volatiles comme les aldéhydes sans altérer la conception d'une couche superficielle et qui est non toxique pour le corps humain. Ledit matériau pour garnitures automobiles intérieures comprend en tant que composants principaux un substrat (6) et une couche superficielle (9), et est caractérisé en ce qu'un agent pouvant capturer des substances organiques volatiles est présent à l'avant (10) et/ou à l'arrière (8) de la couche superficielle (9) et en ce que l'agent est un produit de réaction de dioxyde de silicium présentant un diamètre moyen de particules compris entre 1 et 200nm avec un aminosilane.
PCT/JP2009/050377 2008-01-15 2009-01-14 Matériau pour garnitures automobiles intérieures WO2009090955A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2008005980A JP2009166614A (ja) 2008-01-15 2008-01-15 自動車用内装材
JP2008-005980 2008-01-15

Publications (1)

Publication Number Publication Date
WO2009090955A1 true WO2009090955A1 (fr) 2009-07-23

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PCT/JP2009/050377 WO2009090955A1 (fr) 2008-01-15 2009-01-14 Matériau pour garnitures automobiles intérieures

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JP (1) JP2009166614A (fr)
MY (1) MY159376A (fr)
WO (1) WO2009090955A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115746387A (zh) * 2021-09-03 2023-03-07 欧拓管理股份有限公司 用于车辆的模制内部装饰部件的voc处理
EP4252903A1 (fr) * 2022-03-31 2023-10-04 Autoneum Management AG Patch de réduction des composés volatiles organiques (cov) pour le traitement des pièces automobiles

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10310984A (ja) * 1997-05-12 1998-11-24 Dynic Corp 壁 紙
JP2002191967A (ja) * 2000-12-28 2002-07-10 Toagosei Co Ltd アルデヒドガス吸収体
JP2004285485A (ja) * 2003-03-19 2004-10-14 Kao Corp 粒子状吸着剤を含有する消臭加工用繊維製品処理剤
JP2007290438A (ja) * 2006-04-21 2007-11-08 Yachiyo Industry Co Ltd サンシェード板

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004024330A (ja) * 2002-06-21 2004-01-29 Toagosei Co Ltd 消臭剤

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10310984A (ja) * 1997-05-12 1998-11-24 Dynic Corp 壁 紙
JP2002191967A (ja) * 2000-12-28 2002-07-10 Toagosei Co Ltd アルデヒドガス吸収体
JP2004285485A (ja) * 2003-03-19 2004-10-14 Kao Corp 粒子状吸着剤を含有する消臭加工用繊維製品処理剤
JP2007290438A (ja) * 2006-04-21 2007-11-08 Yachiyo Industry Co Ltd サンシェード板

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115746387A (zh) * 2021-09-03 2023-03-07 欧拓管理股份有限公司 用于车辆的模制内部装饰部件的voc处理
WO2023031327A1 (fr) * 2021-09-03 2023-03-09 Autoneum Management Ag Traitement de cov de pièces de garniture intérieure moulées pour un véhicule
EP4252903A1 (fr) * 2022-03-31 2023-10-04 Autoneum Management AG Patch de réduction des composés volatiles organiques (cov) pour le traitement des pièces automobiles

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JP2009166614A (ja) 2009-07-30
MY159376A (en) 2016-12-30

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