CN105733086A - Automobile soundproof material and preparing method thereof - Google Patents
Automobile soundproof material and preparing method thereof Download PDFInfo
- Publication number
- CN105733086A CN105733086A CN201610267096.7A CN201610267096A CN105733086A CN 105733086 A CN105733086 A CN 105733086A CN 201610267096 A CN201610267096 A CN 201610267096A CN 105733086 A CN105733086 A CN 105733086A
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- sound material
- vinyl acetate
- auto sound
- ethylene
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Classifications
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- 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
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/26—Component parts, details or accessories; Auxiliary operations
- B29C51/46—Measuring, controlling or regulating
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/006—Additives being defined by their surface area
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
Abstract
The invention relates to an automobile soundproof material, in particular to an automobile soundproof material and a preparing method thereof. The soundproof material is prepared from 90-100 parts of ethylene vinyl acetate copolymers, 3-10 parts of nanosilicon dioxide, 1-2 parts of coupling agent, 1-2 parts of cross-linking agent and 0.5-1 part of antioxidant. According to the soundproof materials, as the ethylene vinyl acetate copolymers are adopted, and the nanosilicon dioxide servers as filler, the amount of added filler is small, and the prepared material is good in soundproof effect; meanwhile, the soundproof sheet prepared with the preparing method is small in density and small in weight, and conforms to the lightweight trend of automobiles.
Description
Technical field
The present invention relates to vapour Soundproof material for vehicle.
Background technology
Along with the progress of the mankind, the prosperity of science, noise pollution has become as very important problem.Absorb noise, reduce noise pollution and be related to the important topic of human society coordinated development.Along with going deep into of research, the material of various absorption sound waves produces therewith.Its sound insulation principle is all to utilize when sound wave is by certain object, and this object can absorb, reflect weakening so that the continuation cutting off sound wave is propagated, thus reaches the effect of sound insulation.Along with the development of auto industry, to the sound insulation value of deadener, thermostability, mechanical property requirement more and more higher, conventional material is also increasingly difficult to meet requirement.
Defective tightness is combined between various thermoplastic resin molecules in the puigging of the auto sound material of conventional formulation, and interface cohesion is poor between thermoplastic resin and filler, the most closely knit, it is difficult to reach preferable soundproof effect, and owing to the addition of high amount of inorganic filler, increase material weight, deviate from mutually with the trend of automotive light weight technology.
Summary of the invention
For above-mentioned technical problem, the present invention provides a kind of filler to add less, soundproof effect preferable auto sound material.
The technical solution used in the present invention is: auto sound material, and it is made up of following mass fraction:
90 100 parts of ethylene-vinyl acetate copolymers, 3 10 parts of nano silicons, 12 parts of coupling agents, 12 parts of cross-linking agent, 0.5 1 parts of antioxidant.
As preferably, in described ethylene-vinyl acetate copolymer, the content of vinylacetate is 30 40wt%.
As preferably, the particle diameter of described nano silicon is 40 80nm, and specific surface area is 150 200m2/g。
As preferably, described coupling agent uses aminopropyl triethoxysilane, VTES or ethylenediamine hydroxypropyl methyl dimethoxysilane.
As preferably, described cross-linking agent uses stearoyl, chloro benzoyl peroxide or cumyl peroxide.
As preferably, described antioxidant uses 2, tri-grades of butyl-4-methylphenols of 6-.
The present invention also provides for the preparation method of a kind of auto sound material, and it comprises the following steps:
(1) by above-mentioned mass ratio coupling agent, nano silicon is carried out surface process, to improve the performance of nano silicon；
(2) press mass fraction again and add ethylene-vinyl acetate copolymer, cross-linking agent and antioxidant, and mix homogeneously；
(3) then with screw extruder carry out extruding, pelletize；
(4) then above-mentioned pellet mould is placed on vulcanizer and makes diaphragm；
(5) finally diaphragm is carried out vacuum hotpressing, obtain sound insulation sheet material.
As preferably, the operating temperature of described extruder keeps 80 100 DEG C.
As preferably, during hot pressing, temperature is 130 150 DEG C, and vacuum is-0.1MPa, and hot pressing time is 15 25min.
As can be known from the above technical solutions, the deadener of the present invention uses ethylene-vinyl acetate copolymer, and with nano silicon as filler, not only filler addition is less, and the material soundproof effect prepared is preferable；Meanwhile, sound insulation sheet material prepared by the preparation method of the present invention not only density is less, and lighter weight, meet the trend of automotive light weight technology.
Detailed description of the invention
The present invention is described more detail below, and illustrative examples and explanation in this present invention are used for explaining the present invention, but not as a limitation of the invention.
Auto sound material, it is made up of following mass fraction:
90 100 parts of ethylene-vinyl acetate copolymers, in ethylene-vinyl acetate copolymer, the content of vinylacetate is 30 40wt% so that the quick adhesive property of copolymer is preferable；And copolymer is without solvent, free from environmental pollution, safety is higher.
3 10 parts of nano silicons, nano silicon has porous, polymolecularity, light weight, and chemical stability is preferable, and it has the good compatibility and interface bond strength with ethylene-vinyl acetate copolymer.The present invention uses the particle diameter of nano silicon to be 40 80nm, and specific surface area is 150 200m2/ g, can reach optimal soundproof effect.
12 parts of coupling agents, it can reduce the viscosity of ethylene-vinyl acetate copolymer, improves the dispersion of nano silicon to improve processing characteristics, and then makes the material of preparation obtain good surface quality and mechanical performance etc.；The coupling agent of the present invention uses aminopropyl triethoxysilane, VTES or ethylenediamine hydroxypropyl methyl dimethoxysilane；12 parts of cross-linking agent, the content of cross-linking agent, without too high, only need it that thermoplastic resin can be made fully to solidify and cross-links, and the present invention uses stearoyl, chloro benzoyl peroxide or cumyl peroxide, can obtain more preferable effect；0.5 1 parts of antioxidant, antioxidant uses 2, and tri-grades of butyl-4-methylphenols of 6-, it has high oxidation resistance, and the compatibility with ethylene-vinyl acetate copolymer is good, does not separates out, will not polluted product.
Embodiment 1
With 1 part of aminopropyl triethoxysilane, 3 parts of nano silicons being carried out surface process by mass fraction, wherein the particle diameter of nano silicon is 40nm, and specific surface area is 150m2/g；Add 90 parts of ethylene-vinyl acetate copolymers, 1 part of stearoyl and 0.5 part 2, tri-grades of butyl-4-methylphenols of 6-, and mix homogeneously；Then with screw extruder carry out extruding, pelletize, the operating temperature of extruder keeps 80 DEG C；Then above-mentioned pellet mould is placed on vulcanizer and makes diaphragm；Finally by diaphragm temperature be 130 DEG C, vacuum for-0.1MPa under conditions of vacuum hotpressing 25min, make the thick sound insulation sheet material of 2mm.After testing, the density of this sheet material is 1630kg/m3, frequency be 100,500,1000,3000,5000Hz time oise insulation factor be respectively 14,29.5,35.3,42,48.3dB.
Embodiment 2
With 2 parts of VTESs, 6 parts of nano silicons being carried out surface process by mass fraction, wherein the particle diameter of nano silicon is 60nm, and specific surface area is 180m2/g；Add 95 parts of ethylene-vinyl acetate copolymers, 1 part of mistake chloro benzoyl peroxide and 0.5 part 2, tri-grades of butyl-4-methylphenols of 6-, and mix homogeneously；Then with screw extruder carry out extruding, pelletize, the operating temperature of extruder keeps 90 DEG C；Then above-mentioned pellet mould is placed on vulcanizer and makes diaphragm；Finally by diaphragm temperature be 140 DEG C, vacuum for-0.1MPa under conditions of vacuum hotpressing 20min, make the thick sound insulation sheet material of 2mm.After testing, the density of this sheet material is 1750kg/m3, frequency be 100,500,1000,3000,5000Hz time oise insulation factor be respectively 14.5,31.6,38.7,45,49.2dB.
Embodiment 3
With 2 parts of ethylenediamine hydroxypropyl methyl dimethoxysilane, 10 parts of nano silicons being carried out surface process by mass fraction, wherein the particle diameter of nano silicon is 80nm, and specific surface area is 200m2/g；Add 100 parts of ethylene-vinyl acetate copolymers, 2 parts of cumyl peroxides and 1 part 2, tri-grades of butyl-4-methylphenols of 6-, and mix homogeneously；Then with screw extruder carry out extruding, pelletize, the operating temperature of extruder keeps 100 DEG C；Then above-mentioned pellet mould is placed on vulcanizer and makes diaphragm；Finally by diaphragm temperature be 150 DEG C, vacuum for-0.1MPa under conditions of vacuum hotpressing 15min, make the thick sound insulation sheet material of 2mm.After testing, the density of this sheet material is 1680kg/m3, frequency be 100,500,1000,3000,5000Hz time oise insulation factor be respectively 14.2,29.8,36.2,42.8,48.8dB.
The technical scheme provided the embodiment of the present invention above is described in detail, principle and the embodiment of the embodiment of the present invention are set forth by specific case used herein, and the explanation of above example is only applicable to help to understand the principle of the embodiment of the present invention；Simultaneously for one of ordinary skill in the art, according to the embodiment of the present invention, all will change in detailed description of the invention and range of application, in sum, this specification content should not be construed as limitation of the present invention.
Claims (9)
1. auto sound material, it is made up of following mass fraction:
90 100 parts of ethylene-vinyl acetate copolymers, 3 10 parts of nano silicons, 12 parts of coupling agents, 12 parts of cross-linking agent, 0.5 1 parts of antioxidant.
Auto sound material the most according to claim 1, it is characterised in that: in described ethylene-vinyl acetate copolymer, the content of vinylacetate is 30 40wt%.
Auto sound material the most according to claim 1, it is characterised in that: the particle diameter of described nano silicon is 40 80nm, and specific surface area is 150 200m2/g。
Auto sound material the most according to claim 1, it is characterised in that: described coupling agent uses aminopropyl triethoxysilane, VTES or ethylenediamine hydroxypropyl methyl dimethoxysilane.
Auto sound material the most according to claim 1, it is characterised in that: described cross-linking agent uses stearoyl, chloro benzoyl peroxide or cumyl peroxide.
Auto sound material the most according to claim 1, it is characterised in that: described antioxidant uses 2, tri-grades of butyl-4-methylphenols of 6-.
7., according to a preparation method for auto sound material described in any one in claim 1-6, it comprises the following steps:
(1) by above-mentioned mass ratio coupling agent, nano silicon is carried out surface process；
(2) press mass fraction again and add ethylene-vinyl acetate copolymer, cross-linking agent and antioxidant, and mix homogeneously；
(3) then with screw extruder carry out extruding, pelletize；
(4) then above-mentioned pellet mould is placed on vulcanizer and makes diaphragm；
(5) finally diaphragm is carried out vacuum hotpressing, obtain sound insulation sheet material.
Preparation method the most according to claim 7, it is characterised in that: the operating temperature of described extruder keeps 80 100 DEG C.
Preparation method the most according to claim 7, it is characterised in that: during hot pressing, temperature is 130 150 DEG C, and vacuum is-0.1MPa, and hot pressing time is 15 25min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610267096.7A CN105733086A (en) | 2016-04-27 | 2016-04-27 | Automobile soundproof material and preparing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610267096.7A CN105733086A (en) | 2016-04-27 | 2016-04-27 | Automobile soundproof material and preparing method thereof |
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| Publication Number | Publication Date |
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| CN105733086A true CN105733086A (en) | 2016-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610267096.7A Pending CN105733086A (en) | 2016-04-27 | 2016-04-27 | Automobile soundproof material and preparing method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106633353A (en) * | 2016-12-19 | 2017-05-10 | 钦州市科学技术开发中心 | Automobile sound insulation material and preparation method thereof |
| CN110016173A (en) * | 2018-01-10 | 2019-07-16 | 上海凝兰新材料科技有限公司 | A kind of new-energy automobile acoustic material and preparation method thereof |
| CN110283378A (en) * | 2019-06-03 | 2019-09-27 | 神龙汽车有限公司 | A kind of automobile acoustic material and preparation method thereof with formaldehyde adsorption function |
| CN110684269A (en) * | 2019-10-30 | 2020-01-14 | 马鞍山市谷庆门业有限公司 | Preparation method of light sound insulation material applied to solid wood composite door |
| CN112745561A (en) * | 2020-12-21 | 2021-05-04 | 金发科技股份有限公司 | Automobile sound insulation pad material with excellent sound insulation effect and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106633353A (en) * | 2016-12-19 | 2017-05-10 | 钦州市科学技术开发中心 | Automobile sound insulation material and preparation method thereof |
| CN110016173A (en) * | 2018-01-10 | 2019-07-16 | 上海凝兰新材料科技有限公司 | A kind of new-energy automobile acoustic material and preparation method thereof |
| CN110283378A (en) * | 2019-06-03 | 2019-09-27 | 神龙汽车有限公司 | A kind of automobile acoustic material and preparation method thereof with formaldehyde adsorption function |
| CN110684269A (en) * | 2019-10-30 | 2020-01-14 | 马鞍山市谷庆门业有限公司 | Preparation method of light sound insulation material applied to solid wood composite door |
| CN112745561A (en) * | 2020-12-21 | 2021-05-04 | 金发科技股份有限公司 | Automobile sound insulation pad material with excellent sound insulation effect and preparation method thereof |
| CN112745561B (en) * | 2020-12-21 | 2023-02-03 | 金发科技股份有限公司 | Automobile sound insulation pad material with excellent sound insulation effect and preparation method thereof |
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Application publication date: 20160706 |