WO2023276151A1 - Matériau absorbant acoustique et élément de véhicule - Google Patents

Matériau absorbant acoustique et élément de véhicule Download PDF

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Publication number
WO2023276151A1
WO2023276151A1 PCT/JP2021/025173 JP2021025173W WO2023276151A1 WO 2023276151 A1 WO2023276151 A1 WO 2023276151A1 JP 2021025173 W JP2021025173 W JP 2021025173W WO 2023276151 A1 WO2023276151 A1 WO 2023276151A1
Authority
WO
WIPO (PCT)
Prior art keywords
inorganic particles
sound absorbing
absorbing material
base material
containing inorganic
Prior art date
Application number
PCT/JP2021/025173
Other languages
English (en)
Japanese (ja)
Inventor
太希 枝元
光朗 海野
Original Assignee
昭和電工マテリアルズ株式会社
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 昭和電工マテリアルズ株式会社 filed Critical 昭和電工マテリアルズ株式会社
Priority to PCT/JP2021/025173 priority Critical patent/WO2023276151A1/fr
Publication of WO2023276151A1 publication Critical patent/WO2023276151A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
    • D06M23/08—Processes in which the treating agent is applied in powder or granular form
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/162—Selection of materials
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/162—Selection of materials
    • G10K11/168—Plural layers of different materials, e.g. sandwiches

Definitions

  • Components for vehicles such as automobiles are sometimes equipped with sound absorbing materials to improve soundproofing.
  • a vehicle floor spacer provided with a sound absorbing material is known (for example, Patent Document 1).
  • Both the region containing inorganic particles and the region not containing inorganic particles may be layered, and can be referred to as a layered region containing inorganic particles and a layered region not containing inorganic particles, respectively.
  • the thickness of the region containing inorganic particles is equal to the thickness of the fiber base material. 10 to 70% of.
  • the thickness ratio may be 20% or more, or 30% or more. Also, the thickness ratio may be 50% or less, or 40% or less.
  • a fibrous substrate is a substrate composed of fibers, and in particular the fibrous substrate may be a woven fabric or a non-woven fabric. From the viewpoint of obtaining better sound absorbing properties, the fiber base material may be a nonwoven fabric.
  • the amount of the binder resin can be 1 to 100 parts by mass with respect to 100 parts by mass of the inorganic particles from the viewpoint of exhibiting the function as the binder resin and maintaining good sound absorption characteristics, even if it is 10 to 50 parts by mass. good.
  • the region containing inorganic particles may further contain a thickening agent. This makes it easier to fix the inorganic particles to the fiber base material.
  • thickeners include polymers such as carboxymethylcellulose, hydroxyethylcellulose, polyacrylamide, sodium polyacrylate, polyvinylpyrrolidone, polyvinyl alcohol and xanthan gum.
  • sodium polyacrylate can be used from the viewpoint of being easily soluble in water at room temperature and being compatible with other thermoplastic binder resins.
  • the thickness of the adhesive layer is not particularly limited, it can be 0.01 to 500 ⁇ m, and may be 1 to 250 ⁇ m.
  • the liquid medium can be selected from the viewpoint of low reactivity with the fiber base material, dispersibility of inorganic particles, solubility of binder resin, etc.
  • Liquid media include, for example, water and organic solvents.
  • organic solvents include alcohols such as methanol, ethanol, isopropanol, butanol, ethylene glycol and propylene glycol. These can be used alone or in combination of two or more.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Textile Engineering (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)

Abstract

L'invention concerne un matériau absorbant acoustique comprenant un substrat fibreux ayant une région comprenant des particules inorganiques, le diamètre moyen des particules inorganiques étant de 0,1 à 5,0 fois supérieur au diamètre moyen des fibres formant le substrat fibreux.
PCT/JP2021/025173 2021-07-02 2021-07-02 Matériau absorbant acoustique et élément de véhicule WO2023276151A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2021/025173 WO2023276151A1 (fr) 2021-07-02 2021-07-02 Matériau absorbant acoustique et élément de véhicule

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2021/025173 WO2023276151A1 (fr) 2021-07-02 2021-07-02 Matériau absorbant acoustique et élément de véhicule

Publications (1)

Publication Number Publication Date
WO2023276151A1 true WO2023276151A1 (fr) 2023-01-05

Family

ID=84690980

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2021/025173 WO2023276151A1 (fr) 2021-07-02 2021-07-02 Matériau absorbant acoustique et élément de véhicule

Country Status (1)

Country Link
WO (1) WO2023276151A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116163146A (zh) * 2023-02-20 2023-05-26 瑞声科技（南京）有限公司 复合导热吸声材料及其制备方法以及扬声器

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06308968A (ja) * 1991-06-13 1994-11-04 Matsushita Electric Works Ltd 吸音材
JPH11219187A (ja) * 1997-05-27 1999-08-10 Matsushita Electric Works Ltd 吸音材及びその製造方法、並びに防音構造
JP2005338129A (ja) * 2004-05-24 2005-12-08 Nissan Motor Co Ltd 防音材
JP2013163875A (ja) * 2012-02-10 2013-08-22 Japan Vilene Co Ltd 不織布
JP2017160548A (ja) * 2016-03-07 2017-09-14 株式会社クラレ メルトブロー不織布及び吸音材
JP2018161778A (ja) * 2017-03-24 2018-10-18 イビデン株式会社 吸音材及び車両部品

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06308968A (ja) * 1991-06-13 1994-11-04 Matsushita Electric Works Ltd 吸音材
JPH11219187A (ja) * 1997-05-27 1999-08-10 Matsushita Electric Works Ltd 吸音材及びその製造方法、並びに防音構造
JP2005338129A (ja) * 2004-05-24 2005-12-08 Nissan Motor Co Ltd 防音材
JP2013163875A (ja) * 2012-02-10 2013-08-22 Japan Vilene Co Ltd 不織布
JP2017160548A (ja) * 2016-03-07 2017-09-14 株式会社クラレ メルトブロー不織布及び吸音材
JP2018161778A (ja) * 2017-03-24 2018-10-18 イビデン株式会社 吸音材及び車両部品

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116163146A (zh) * 2023-02-20 2023-05-26 瑞声科技（南京）有限公司 复合导热吸声材料及其制备方法以及扬声器
WO2024174363A1 (fr) * 2023-02-20 2024-08-29 瑞声科技（南京）有限公司 Matériau composite absorbant le son thermoconducteur et son procédé de préparation, et haut-parleur

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