CN110819016A - Butyl damping fin - Google Patents

Butyl damping fin Download PDF

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Publication number
CN110819016A
CN110819016A CN201911274364.8A CN201911274364A CN110819016A CN 110819016 A CN110819016 A CN 110819016A CN 201911274364 A CN201911274364 A CN 201911274364A CN 110819016 A CN110819016 A CN 110819016A
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Prior art keywords
butyl
rubber
damping fin
content
damping
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CN110819016B (en
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王星
魏飞
陈鑫鑫
牛方方
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Zhangjiagang Ecoseal Automobile Part Co Ltd
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Zhangjiagang Ecoseal Automobile Part Co Ltd
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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
    • C08L23/18—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
    • C08L23/20—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms having four to nine carbon atoms
    • C08L23/22—Copolymers of isobutene; Butyl rubber ; Homo- or copolymers of other iso-olefins
    • 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
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • C08L33/04—Homopolymers or copolymers of esters
    • 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
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C08K2003/265—Calcium, strontium or barium carbonate
    • 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
    • C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
    • C08K2003/3045—Sulfates
    • 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
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • 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

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  • 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)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The invention discloses a butyl damping fin which comprises the following raw materials in percentage by mass: 10-20% of butyl rubber, 10-20% of acrylic resin, 5-10% of polyisobutylene rubber, 5-10% of liquid polyisobutylene, 1-5% of plasticizer, 15-25% of barium sulfate, 15-25% of flaky mica, 2-5% of calcium carbonate, 5-10% of hydrocarbon resin and 0.5-1% of carbon black. The butyl damping fin disclosed by the invention can keep a good damping effect under different temperature environments.

Description

Butyl damping fin
Technical Field
The invention relates to the technical field of rubber damping products, in particular to a butyl damping fin.
Background
Butyl damping fin is a bilayer structure's rubber damping goods, be applied to the automobile manufacturing process, the upper strata is restraint layer (generally for glass fiber cloth or aluminium foil), the lower floor is the damping layer (uses butyl rubber and acryl resin as the damping sizing material of substrate), spread and paste at the plane of great area or close planar panel beating position, can increase the damping effect of spreading the position, reduce the panel beating and arouse and the vibrations that produce, thereby the emergence of noise reduction, improve the NVH performance of whole car, promote passenger's travelling comfort.
The butyl damping fin mainly used at present is an asphalt damping fin or a butyl rubber damping fin, and asphalt used as a main material of the asphalt damping fin has great harm to the environment, so that gas harmful to human bodies is volatilized when the asphalt damping fin is used in an automobile, the health of passengers is influenced, and the asphalt damping fin is widely used in the market all the time due to low price.
The butyl rubber damping sheet adopts solid butyl rubber as a base material, and solves the problems that the prior asphalt damping cushion product has large smell, more harmful gas to human body and air pollution in the use process. For example, the application No. 201710804836.0 (a butyl damping material) is prepared from butyl rubber, polyisobutylene, a filler, calcium carbonate and tackifying resin, the prepared damping material is less in volatile toxic gas, good in damping and noise reduction effects, and capable of improving NVH (noise, vibration and harshness) performance of the whole vehicle and improving comfort of passengers, but because a single polymer is used, the damping effect difference displayed under different temperature conditions is large, an ideal damping effect cannot be achieved under high-temperature and low-temperature conditions, and the application of the damping material is limited to a certain extent.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a butyl damping fin which has better damping performance under different temperature conditions.
In order to achieve the purpose, the invention adopts the technical scheme that: a butyl damping fin comprises the following raw materials in percentage by mass: 10-20% of butyl rubber, 10-20% of acrylic resin, 5-10% of polyisobutylene rubber, 5-10% of liquid polyisobutylene, 1-5% of plasticizer, 15-25% of barium sulfate, 15-25% of flaky mica, 2-5% of calcium carbonate, 5-10% of hydrocarbon resin and 0.5-1% of carbon black.
The butyl rubber, the acrylic resin and the polyisobutylene rubber are used as base materials of products, the butyl rubber and the acrylic resin can achieve good damping effects, the damping effects of the products can be improved within the content range, and the state of the products can be adjusted within the content range of the polyisobutylene rubber, so that the final products can be extruded and molded.
The damping performance of the o-product at 20 ℃ and 40 ℃ can be provided by adding the acrylic resin.
The addition of the liquid polyisobutylene can increase the viscosity of the product and reduce the hardness of the product. The content of the compound is controlled to be between 5 and 10 percent, and if the content is too high, the product is too soft, and if the content is too low, the product is too hard.
Here, the plasticizer can reduce the hardness of the product, facilitating the mixing of the components. The content is controlled to be 1% -5%, and too high can cause the product to be too soft and too low, can cause the product to be too hard and has poor mixing effect.
Barium sulfate is used as a filler, and the specific gravity of the product can be obviously improved. The content is controlled to be 15% -25%, and if the content is too high, the specific gravity of the product is high; too low results in a lower specific gravity of the product.
The flaky mica is used as a filler, and can improve the damping effect of the product to a certain extent. The content is controlled to be 15-25%, and the damping effect of the product is poor when the content is too high or too low.
Calcium carbonate acts as a filler and increases the specific gravity of the product. The content is controlled to be 2% -5%, and if the content is too high, the specific gravity of the product is higher; too low results in a lower specific gravity of the product.
The hydrocarbon resin can increase the viscosity of the product, the content of the hydrocarbon resin is controlled to be 5% -10%, and the viscosity of the product is poor due to too high or too low content of the hydrocarbon resin.
The carbon black is used as a coloring agent, so that the product is black, the content of the carbon black is controlled to be 0.5-1%, and the product is too dark due to too high content of the carbon black; too low, results in a lighter product.
As a specific embodiment, diisononyl phthalate is used as the plasticizer.
As a specific embodiment, the content ratio of the butyl rubber to the acrylic resin is controlled to be between 0.5 and 2: 1.
As a specific embodiment, the ratio of the content of the butyl rubber to the content of the acrylic resin in the raw materials is controlled to be 0.8-2: 1.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: according to the butyl damping fin, the raw materials are matched with the butyl rubber, the acrylic resin and the polyisobutylene rubber, and the flaky mica is introduced as the main filler, so that the prepared butyl damping fin has a good damping effect in a wide temperature range.
Detailed Description
The technical solution of the present invention is further illustrated below with reference to specific examples.
A butyl damping fin comprises the following raw materials in percentage by mass: 10-20% of butyl rubber, 10-20% of acrylic resin, 5-10% of polyisobutylene rubber, 5-10% of liquid polyisobutylene, 1-5% of plasticizer, 15-25% of barium sulfate, 15-25% of flaky mica, 2-5% of calcium carbonate, 5-10% of hydrocarbon resin and 0.5-1% of carbon black.
Here, diisononyl phthalate was used as the plasticizer. In the raw materials, the content of the butyl rubber is not less than that of the acrylic resin.
Example 1
A butyl damping fin comprises the following raw materials in percentage by mass: 20% of butyl rubber, 10% of acrylic resin, 5% of polyisobutylene rubber, 5% of liquid polyisobutylene, 5% of plasticizer, 20% of barium sulfate, 19% of flake mica, 5% of calcium carbonate, 10% of hydrocarbon resin and 1% of carbon black.
Example 2
A butyl damping fin comprises the following raw materials in percentage by mass: 15% of butyl rubber, 15% of acrylic resin, 5% of polyisobutylene rubber, 5% of liquid polyisobutylene, 5% of plasticizer, 20% of barium sulfate, 19% of flake mica, 5% of calcium carbonate, 10% of hydrocarbon resin and 1% of carbon black.
Example 3
A butyl damping fin comprises the following raw materials in percentage by mass: 10% of butyl rubber, 20% of acrylic resin, 5% of polyisobutylene rubber, 5% of liquid polyisobutylene, 5% of plasticizer, 20% of barium sulfate, 19% of flake mica, 5% of calcium carbonate, 10% of hydrocarbon resin and 1% of carbon black.
Example 4
A butyl damping fin comprises the following raw materials in percentage by mass: 12% of butyl rubber, 12% of acrylic resin, 7% of polyisobutylene rubber, 8% of liquid polyisobutylene, 1% of plasticizer, 25% of barium sulfate, 25% of flake mica, 4% of calcium carbonate, 8.5% of hydrocarbon resin and 0.5% of carbon black.
Example 5
A butyl damping fin comprises the following raw materials in percentage by mass: 12% of butyl rubber, 12% of acrylic resin, 7% of polyisobutylene rubber, 8% of liquid polyisobutylene, 1% of plasticizer, 25% of barium sulfate, 25% of flake mica, 4% of calcium carbonate, 5.2% of hydrocarbon resin and 0.8% of carbon black.
Example 6
A butyl damping fin comprises the following raw materials in percentage by mass: 18% of butyl rubber, 15% of acrylic resin, 8% of polyisobutylene rubber, 8% of liquid polyisobutylene, 5% of plasticizer, 15% of barium sulfate, 15% of flake mica, 5% of calcium carbonate, 10% of hydrocarbon resin and 1% of carbon black.
Comparative example
A butyl damping fin comprises the following raw materials in percentage by mass: 20% of butyl rubber, 20% of liquid polyisobutylene, 30% of barium sulfate, 19% of calcium carbonate, 10% of hydrocarbon resin and 1% of carbon black.
The following table 1 compares the specific components of each raw material in the above examples 1 to 6 and comparative example:
TABLE 1
Figure BDA0002315132400000041
The performance index results of the butyl damping sheets corresponding to the components of examples 1 to 6 and comparative example are shown in Table 2.
TABLE 2
From table 2, it is seen that the butyl damping fin of the present embodiment adopts the matching of butyl rubber, acrylic resin and polyisobutylene rubber, and introduces the flaky mica as the main filler, so that the good damping effect can be maintained in a wider temperature range. From table 2, it can be seen that, compared with the comparative example, the butyl damping fin in the example has greatly improved composite loss factor under different temperature conditions, and is suitable for different temperature environments. From examples 1, 2 and 3, it is known that the peel strength of the product is relatively high when the content ratio of the butyl rubber to the acrylic resin is controlled to be 0.8 to 2: 1.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims (4)

1. The butyl damping fin is characterized by comprising the following raw materials in percentage by mass: 10-20% of butyl rubber, 10-20% of acrylic resin, 5-10% of polyisobutylene rubber, 5-10% of liquid polyisobutylene, 1-5% of plasticizer, 15-25% of barium sulfate, 15-25% of flaky mica, 2-5% of calcium carbonate, 5-10% of hydrocarbon resin and 0.5-1% of carbon black.
2. The butyl damping sheet of claim 1, wherein the plasticizer is diisononyl phthalate.
3. The butyl damping fin according to claim 1, wherein the ratio of the content of the butyl rubber to the content of the acrylic resin in the raw material is controlled to be 0.5-2: 1.
4. The butyl damping fin according to claim 3, wherein the ratio of the content of the butyl rubber to the content of the acrylic resin in the raw material is controlled to be 0.8-2: 1.
CN201911274364.8A 2019-12-12 2019-12-12 Butyl damping fin Active CN110819016B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115651323A (en) * 2022-12-14 2023-01-31 艾华(浙江)新材料有限公司 High-density damping fin and preparation method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101497768A (en) * 2009-03-04 2009-08-05 三友（天津）高分子技术有限公司 Silencing film for automobile
CN101691119A (en) * 2009-09-18 2010-04-07 广州市延昌新型塑胶制品有限公司 High speed train damping sound insulation sheet material and manufacturing method thereof
JP2010100794A (en) * 2007-12-27 2010-05-06 Tokai Rubber Ind Ltd High-damping rubber composition
CN107722474A (en) * 2017-09-08 2018-02-23 张家港爱科思汽车配件有限公司 A kind of butyl damping material
CN108531101A (en) * 2018-04-18 2018-09-14 杭州之江有机硅化工有限公司 A kind of self-adhering-type butyl damping fin and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010100794A (en) * 2007-12-27 2010-05-06 Tokai Rubber Ind Ltd High-damping rubber composition
CN101497768A (en) * 2009-03-04 2009-08-05 三友（天津）高分子技术有限公司 Silencing film for automobile
CN101691119A (en) * 2009-09-18 2010-04-07 广州市延昌新型塑胶制品有限公司 High speed train damping sound insulation sheet material and manufacturing method thereof
CN107722474A (en) * 2017-09-08 2018-02-23 张家港爱科思汽车配件有限公司 A kind of butyl damping material
CN108531101A (en) * 2018-04-18 2018-09-14 杭州之江有机硅化工有限公司 A kind of self-adhering-type butyl damping fin and preparation method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115651323A (en) * 2022-12-14 2023-01-31 艾华(浙江)新材料有限公司 High-density damping fin and preparation method thereof

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