CN106566063A - Foaming material for sound absorbing of automobile trim plate - Google Patents
Foaming material for sound absorbing of automobile trim plate Download PDFInfo
- Publication number
- CN106566063A CN106566063A CN201610928202.1A CN201610928202A CN106566063A CN 106566063 A CN106566063 A CN 106566063A CN 201610928202 A CN201610928202 A CN 201610928202A CN 106566063 A CN106566063 A CN 106566063A
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- China
- Prior art keywords
- parts
- trim panel
- automotive trim
- panel sound
- expanded material
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C08L23/0853—Vinylacetate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/102—Azo-compounds
- C08J9/103—Azodicarbonamide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/08—Copolymers of ethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2461/00—Characterised by the use of condensation polymers of aldehydes or ketones; Derivatives of such polymers
- C08J2461/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08J2461/26—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
- C08J2461/28—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds with melamine
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/14—Applications used for foams
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
Abstract
The invention discloses a foaming material for sound absorbing of an automobile trim plate. The foaming material for sound absorbing of the automobile trim plate comprise the raw materials, by weight, 55-75 parts of ethylene-vinyl acetate copolymer, 25-35 parts of polyester fibers, 10-20 parts of nitrile butadiene rubber, 5-15 parts of polyvinyl chloride, 25-45 parts of melamine foam, 25-65 parts of distilled water, 50-18 parts of a foaming agent and 1.2-1.6 parts of a stabilizing agent. Due to the above manner, lots of micro communicated pores exist in the foaming material for sound absorbing of the automobile trim plate, sound waves can go deep into the material along the pores, an efficient and reliable sound absorbing effect is achieved, and quietness of the indoor environment of an automobile is guaranteed.
Description
Technical field
The present invention relates to technical field of automotive upholstery, more particularly to a kind of automotive trim panel sound-absorbing expanded material.
Background technology
Automotive upholstery generally refers to dividing plate, door panel, panel assembly, handrail, carpet of automobile bodies etc. zero
Part and material.
The quality of automotive upholstery depends on material, in the past the multiplex metal of car enterprises, timber and fiber textile etc.
Material, outward appearance and texture it is all not satisfactory.As environmental protection consciousness is increasingly dense, find some can recycle, material
High, the easy to process material of security performance has become the research and development of auto manufacturing of various countries replacing traditional material
Content.
Current automotive trim panel acoustically effective this aspect also show not substantially, this may result in car room
It is noisy, indoor environment is affected, affect drive safety.
The content of the invention
The invention mainly solves the technical problem of providing a kind of automotive trim panel sound-absorbing expanded material, inside has in a large number
Small interconnected pore, sound wave can go deep into material internal along these holes, reach the acoustically effective of high efficient and reliable, it is ensured that vapour
The peace and quiet of car indoor environment.
To solve above-mentioned technical problem, one aspect of the present invention is：A kind of automotive trim panel sound-absorbing is provided
With expanded material, in terms of parts by weight, including the raw material of following component：55 ~ 75 parts of ethylene-vinyl acetate copolymer, polyester
25 ~ 35 parts of fiber, 10 ~ 20 parts of nitrile rubber, 5 ~ 15 parts of polyvinyl chloride, 25 ~ 45 parts of melamine foam, distilled water 25 ~ 65
1.2 ~ 1.6 parts of part, 5 ~ 18 parts of foaming agent and stabilizer.
In a preferred embodiment of the present invention, the polyester fiber also can use centrifugally glass-wool, rock wool, mineral wool or plant
Fiber is replaced.
In a preferred embodiment of the present invention, the foaming agent is phenylene diisocyanate, diphenylmethane diisocyanate
Ester, azodicarbonamide, dinitrosopentamethlyene tetramine or to aoxidize two benzene sulfonyl hydrazides in one or more.
In a preferred embodiment of the present invention, the stabilizer is carboxymethylcellulose calcium, methylcellulose, aliphatic acid two
One kind in monoethanolamine or polyacrylamide.
In a preferred embodiment of the present invention, in terms of parts by weight, including the raw material of following component：Ethyl vinyl acetate
55 parts of ethylene copolymer, 25 parts of centrifugally glass-wool, 10 parts of nitrile rubber, 5 parts of polyvinyl chloride, 25 parts of melamine foam, distillation
1.2 parts of 25 parts of water, 5 parts of phenylene diisocyanate and methylcellulose.
In a preferred embodiment of the present invention, in terms of parts by weight, including the raw material of following component：Ethyl vinyl acetate
65 parts of ethylene copolymer, 30 parts of polyester fiber, 15 parts of nitrile rubber, 10 parts of polyvinyl chloride, 35 parts of melamine foam, distillation
1.4 parts of 45 parts of water, 12 parts of phenylene diisocyanate and polyacrylamide.
In a preferred embodiment of the present invention, in terms of parts by weight, including the raw material of following component：Ethyl vinyl acetate
75 parts of ethylene copolymer, 35 parts of string, 20 parts of nitrile rubber, 15 parts of polyvinyl chloride, 45 parts of melamine foam, distillation
1.6 parts of 65 parts of water, 18 parts of azodicarbonamide and fatty acid diethanolamine.
The invention has the beneficial effects as follows：There are a large amount of small connections inside automotive trim panel sound-absorbing expanded material of the present invention
Hole, sound wave can go deep into material internal along these holes, reach the acoustically effective of high efficient and reliable, it is ensured that car room environment
Peace and quiet.
Specific embodiment
The technical scheme in the embodiment of the present invention will be clearly and completely described below, it is clear that described enforcement
Example is only a part of embodiment of the present invention, rather than the embodiment of whole.Based on the embodiment in the present invention, this area is common
All other embodiment that technical staff is obtained under the premise of creative work is not made, belongs to the model of present invention protection
Enclose.
The embodiment of the present invention includes：
A kind of automotive trim panel sound-absorbing expanded material, in terms of parts by weight, including the raw material of following component：Ethyl vinyl acetate
55 ~ 75 parts of ethylene copolymer, 25 ~ 35 parts of polyester fiber, 10 ~ 20 parts of nitrile rubber, 5 ~ 15 parts of polyvinyl chloride, melamine bubble
1.2 ~ 1.6 parts of 25 ~ 45 parts of cotton, 25 ~ 65 parts of distilled water, 5 ~ 18 parts of foaming agent and stabilizer.
The polyester fiber also can use centrifugally glass-wool, rock wool, mineral wool or string to be replaced.
The foaming agent is phenylene diisocyanate, methyl diphenylene diisocyanate, azodicarbonamide, dinitroso five
Methine tetramine or to aoxidize two benzene sulfonyl hydrazides in one or more.
The stabilizer is in carboxymethylcellulose calcium, methylcellulose, fatty acid diethanolamine or polyacrylamide
Kind.
Embodiment one
A kind of automotive trim panel sound-absorbing expanded material, in terms of parts by weight, including the raw material of following component：Ethyl vinyl acetate
55 parts of ethylene copolymer, 25 parts of centrifugally glass-wool, 10 parts of nitrile rubber, 5 parts of polyvinyl chloride, 25 parts of melamine foam, distillation
1.2 parts of 25 parts of water, 5 parts of phenylene diisocyanate and methylcellulose.
Embodiment two
A kind of automotive trim panel sound-absorbing expanded material, in terms of parts by weight, including the raw material of following component：Ethyl vinyl acetate
65 parts of ethylene copolymer, 30 parts of polyester fiber, 15 parts of nitrile rubber, 10 parts of polyvinyl chloride, 35 parts of melamine foam, distillation
1.4 parts of 45 parts of water, 12 parts of phenylene diisocyanate and polyacrylamide.
Embodiment three
A kind of automotive trim panel sound-absorbing expanded material, in terms of parts by weight, including the raw material of following component：Ethyl vinyl acetate
75 parts of ethylene copolymer, 35 parts of string, 20 parts of nitrile rubber, 15 parts of polyvinyl chloride, 45 parts of melamine foam, distillation
1.6 parts of 65 parts of water, 18 parts of azodicarbonamide and fatty acid diethanolamine.
The beneficial effect of automotive trim panel sound-absorbing expanded material of the present invention is：
There are a large amount of small interconnected pores inside, and sound wave can go deep into material internal, reach high efficient and reliable along these holes
Acoustically effective, it is ensured that the peace and quiet of car room environment.
Embodiments of the invention are the foregoing is only, the scope of the claims of the present invention is not thereby limited, it is every using this
Equivalent structure or equivalent flow conversion that bright description is made, or directly or indirectly it is used in other related technology necks
Domain, is included within the scope of the present invention.
Claims (7)
1. a kind of automotive trim panel sound-absorbing expanded material, it is characterised in that in terms of parts by weight, including the former material of following component
Material：55 ~ 75 parts of ethylene-vinyl acetate copolymer, 25 ~ 35 parts of polyester fiber, 10 ~ 20 parts of nitrile rubber, 5 ~ 15 parts of polyvinyl chloride,
1.2 ~ 1.6 parts of 25 ~ 45 parts of melamine foam, 25 ~ 65 parts of distilled water, 5 ~ 18 parts of foaming agent and stabilizer.
2. automotive trim panel sound-absorbing expanded material according to claim 1, it is characterised in that the polyester fiber may be used also
Replaced with centrifugally glass-wool, rock wool, mineral wool or string.
3. automotive trim panel sound-absorbing expanded material according to claim 1, it is characterised in that the foaming agent is benzene two
Isocyanates, methyl diphenylene diisocyanate, azodicarbonamide, dinitrosopentamethlyene tetramine or to aoxidize hexichol sulphur
One or more in hydrazides.
4. automotive trim panel sound-absorbing expanded material according to claim 1, it is characterised in that the stabilizer is carboxylic first
One kind in base cellulose, methylcellulose, fatty acid diethanolamine or polyacrylamide.
5. the automotive trim panel sound-absorbing expanded material according to claim 1 ~ 4, it is characterised in that in terms of parts by weight,
Including the raw material of following component：55 parts of ethylene-vinyl acetate copolymer, 25 parts of centrifugally glass-wool, 10 parts of nitrile rubber, polychlorostyrene
1.2 parts of 5 parts of ethene, 25 parts of melamine foam, 25 parts of distilled water, 5 parts of phenylene diisocyanate and methylcellulose.
6. the automotive trim panel sound-absorbing expanded material according to claim 1 ~ 4, it is characterised in that in terms of parts by weight,
Including the raw material of following component：65 parts of ethylene-vinyl acetate copolymer, 30 parts of polyester fiber, 15 parts of nitrile rubber, polychlorostyrene second
1.4 parts of 10 parts of alkene, 35 parts of melamine foam, 45 parts of distilled water, 12 parts of phenylene diisocyanate and polyacrylamide.
7. the automotive trim panel sound-absorbing expanded material according to claim 1 ~ 4, it is characterised in that in terms of parts by weight,
Including the raw material of following component：75 parts of ethylene-vinyl acetate copolymer, 35 parts of string, 20 parts of nitrile rubber, polychlorostyrene second
1.6 parts of 15 parts of alkene, 45 parts of melamine foam, 65 parts of distilled water, 18 parts of azodicarbonamide and fatty acid diethanolamine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610928202.1A CN106566063A (en) | 2016-10-31 | 2016-10-31 | Foaming material for sound absorbing of automobile trim plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610928202.1A CN106566063A (en) | 2016-10-31 | 2016-10-31 | Foaming material for sound absorbing of automobile trim plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106566063A true CN106566063A (en) | 2017-04-19 |
Family
ID=60414464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610928202.1A Pending CN106566063A (en) | 2016-10-31 | 2016-10-31 | Foaming material for sound absorbing of automobile trim plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106566063A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882257A (en) * | 2017-10-29 | 2018-04-06 | 贵州铜仁华毅新型材料科技有限公司 | A kind of high strength sound honeycomb paper wallboard and preparation method thereof |
| CN108003405A (en) * | 2017-11-29 | 2018-05-08 | 国网湖南省电力有限公司 | Flexible sound-absorbing material and its preparation method and application |
| CN108003483A (en) * | 2017-11-29 | 2018-05-08 | 国网湖南省电力有限公司 | Flame retardant flexible sound insulating material and its preparation method and application |
| CN108117700A (en) * | 2017-11-29 | 2018-06-05 | 国网湖南省电力有限公司 | Flame retardant flexible sound-absorbing material and its preparation method and application |
| CN108129715A (en) * | 2017-11-29 | 2018-06-08 | 国网湖南省电力有限公司 | Flexible sound-proof materials and its preparation method and application |
| CN109068229A (en) * | 2018-08-07 | 2018-12-21 | 湖北欣荣康盛机械科技有限公司 | A kind of engine silencing case |
| CN113968055A (en) * | 2021-09-09 | 2022-01-25 | 宏岳塑胶集团股份有限公司 | Special flame-retardant sound-insulation composite material for pipeline and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102532675A (en) * | 2011-12-16 | 2012-07-04 | 蔡龙源 | Foaming material for shoes |
| CN102702642A (en) * | 2012-05-29 | 2012-10-03 | 晋江市诚长鞋材有限公司 | EVA (Ethylene-Vinyl Acetate Copolymer) foaming and damping material and preparation method thereof |
| CN103052676A (en) * | 2010-08-03 | 2013-04-17 | 费罗公司 | Polymer composite foams |
-
2016
- 2016-10-31 CN CN201610928202.1A patent/CN106566063A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103052676A (en) * | 2010-08-03 | 2013-04-17 | 费罗公司 | Polymer composite foams |
| CN102532675A (en) * | 2011-12-16 | 2012-07-04 | 蔡龙源 | Foaming material for shoes |
| CN102702642A (en) * | 2012-05-29 | 2012-10-03 | 晋江市诚长鞋材有限公司 | EVA (Ethylene-Vinyl Acetate Copolymer) foaming and damping material and preparation method thereof |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882257A (en) * | 2017-10-29 | 2018-04-06 | 贵州铜仁华毅新型材料科技有限公司 | A kind of high strength sound honeycomb paper wallboard and preparation method thereof |
| CN107882257B (en) * | 2017-10-29 | 2020-06-09 | 贵州筑信达创科技有限公司 | High-strength sound-insulation honeycomb paper wallboard and preparation method thereof |
| CN108003405A (en) * | 2017-11-29 | 2018-05-08 | 国网湖南省电力有限公司 | Flexible sound-absorbing material and its preparation method and application |
| CN108003483A (en) * | 2017-11-29 | 2018-05-08 | 国网湖南省电力有限公司 | Flame retardant flexible sound insulating material and its preparation method and application |
| CN108117700A (en) * | 2017-11-29 | 2018-06-05 | 国网湖南省电力有限公司 | Flame retardant flexible sound-absorbing material and its preparation method and application |
| CN108129715A (en) * | 2017-11-29 | 2018-06-08 | 国网湖南省电力有限公司 | Flexible sound-proof materials and its preparation method and application |
| CN108117700B (en) * | 2017-11-29 | 2020-10-30 | 国网湖南省电力有限公司 | Flame-retardant flexible sound-absorbing material and preparation method and application thereof |
| CN108003405B (en) * | 2017-11-29 | 2020-11-10 | 国网湖南省电力有限公司 | Flexible sound absorption material and preparation method and application thereof |
| CN109068229A (en) * | 2018-08-07 | 2018-12-21 | 湖北欣荣康盛机械科技有限公司 | A kind of engine silencing case |
| CN113968055A (en) * | 2021-09-09 | 2022-01-25 | 宏岳塑胶集团股份有限公司 | Special flame-retardant sound-insulation composite material for pipeline and preparation method and application thereof |
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Application publication date: 20170419 |