KR20150133556A - Composite of butyl rubber and sheet for vibration and sound proof using the same thing and construction method thereof - Google Patents

Abstract

Disclosed in the present invention are a butyl rubber composition characterized by comprising 10-30 wt% of butyl rubber, 30-70 wt% of an inorganic filler, 8-28 wt% of a tackfier, 3-15 wt% of a modifier, 0.1-5 wt% of a pigment, 0.1-5 wt% of an additive; a vibration resistant sheet using the same; and a construction method of the same. The butyl rubber composition effectively reduces noise and vibration to have an excellent vibration resistant effect, and has excellent adhesion, heat resistance, weather resistance, electric insulation, and corrosion resistance. The butyl rubber composition is self-adhesive, thereby enabling easy construction.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a butyl rubber composition and a dustproof sheet using the same,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technical field of construction, automobiles, ships, and the like. More particularly, the present invention relates to a butyl rubber composition, a dustproof sheet using the same, and a construction method thereof.

The use of household appliances such as washing machines, refrigerators, air conditioners, vacuum cleaners, acoustics appliances, and water supply and hot water systems, whirlpool baths, etc. used in apartment houses cause noise and vibration in the floor.

This interferes with a comfortable living environment and creates a conflict between the neighbors, so that the interlayer noise and vibration are becoming social problems.

Conventionally, in order to block such interlayer noise and vibration, there is provided a method of installing a sound absorbing pad forming each layer between layers.

However, since the conventional sound absorbing pad has a limited performance to block noise and vibration, it is difficult to effectively exhibit the function, and the manufacturing cost is disadvantageously disadvantageous because it is economically disadvantageous.

On the other hand, the inconvenience caused by the above noise and vibration occurs in various industrial fields such as automobiles, structures, ships, trains, elevators, and other machinery.

Particularly, conventionally, a method of installing a soundproofing and dustproofing material on a door trim portion of a vehicle, a bonnet ceiling, and the like is performed. In order to enhance the effect of such a conventional soundproofing and dustproofing material, And a laminated structure.

However, such soundproofing and dustproofing materials have a problem in that the adhesive strength is lowered due to heat fusion between dissimilar materials, so that they can not be attached to the body parts for a long time and are easily peeled off.

Disclosure of the Invention The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a vibration damping material which is effective in reducing noise and vibration to exhibit excellent vibration damping effect, excellent in adhesion, heat resistance, weather resistance, It is an object of the present invention to provide a butyl rubber composition which is easy to apply, a vibration proof sheet using the composition and a method of construction.

In order to solve the above problems, the present invention provides a rubber composition comprising 10 to 30% by weight of butyl rubber; 30 to 70% by weight of an inorganic filler; Tackifier 8 to 28 weight; 3 to 15% by weight of a modifier; 0.1 to 5% by weight of pigment; 0.1 to 5% by weight of an additive.

The inorganic filler is preferably any one or a mixture of two or more of calcium carbonate, talc, silica, mica, clay, fly ash and bentonite.

It is preferable that the tackifier is any one or a mixture of two or more of petroleum resin, polybutene, rosin (rosin) and rosin ester.

It is preferable that the petroleum resin is any one of a C5 series, a C9 series, a copolymer resin, and a hydrogenated resin or a mixture of two or more thereof.

The modifying material may be at least one selected from the group consisting of natural rubber (NR), SBS rubber, chloroprene rubber (CR), EPDM rubber, SBR, ethylene vinyl acetate (EVA) ), Amorphous polyol (APAP), polyethylene (PE), and polypropylene (PP) or a mixture of two or more thereof.

It is preferable that the pigment is any one or a mixture of two or more of carbon black, titanium dioxide (white), red iron oxide, yellow iron oxide, inorganic pigment containing iron oxide or organic pigment.

It is preferable that the additive is any one of a heat stabilizer, a UV stabilizer, a flame retardant, a brightener and a lubricant or a mixture of two or more thereof.

A vibration damping sheet (100) using the butyl rubber composition, comprising: a top sheet (120) formed of a soundproof sheet composition; A rubber sheet 110 laminated on the lower surface of the topsheet 120 and formed of the butyl rubber composition; And a releasing paper 130 attached to the lower portion of the rubber sheet 110. The dust-proof sheet 100 shown in FIG.

Wherein the sound insulation sheet composition comprises 20 to 50% by weight of a synthetic resin; 20 to 70% by weight of an inorganic filler; 4 to 15% by weight of a modifier; 0.1 to 8% by weight of pigment; 0.1 to 8% by weight of an additive.

It is preferable that the synthetic resin is any one or a mixture of two or more of ethylene vinyl acetate (EVA), polyethylene (PE), polypropylene (PP), and polyvinyl chloride (PVC).

The inorganic filler is preferably any one or a mixture of two or more of calcium carbonate, talc, silica, mica, clay, fly ash and bentonite.

The modifying material may be at least one selected from the group consisting of natural rubber (NR), SBS rubber, chloroprene rubber (CR), EPDM rubber, SBR, ethylene vinyl acetate (EVA) ), Amorphous polyol (APAP), polyethylene (PE), and polypropylene (PP) or a mixture of two or more thereof.

It is preferable that the pigment is any one or a mixture of two or more of carbon black, titanium dioxide (white), red iron oxide, yellow iron oxide, inorganic pigment containing iron oxide or organic pigment.

It is preferable that the additive is any one of a heat stabilizer, a UV stabilizer, a flame retardant, a brightener and a lubricant or a mixture of two or more thereof.

The topsheet 120 preferably has a thickness of 0.5 to 6 mm.

The thickness of the rubber sheet 110 is preferably 0.5 to 6 mm.

The present invention provides a method of constructing an anti-vibration sheet for constructing the anti-vibration sheet (100), comprising the steps of: removing contaminants on an adherend surface; Attaching the dustproof sheet (100) to the adherend surface after separating the release paper (130); And pressing the outer surface of the dustproof sheet 100 to remove air.

The present invention relates to a butyl rubber composition which exhibits excellent vibration damping effect by effectively reducing noise and vibration, excellent adhesive force, heat resistance, weather resistance, electrical insulation, excellent anticorrosion property, self- And its construction method.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side sectional view and a plan view of a dustproof sheet according to the present invention; FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings and the accompanying drawings.

As shown in FIG. 1 and Table 1 below, the butyl rubber composition of the present invention comprises 10 to 30% by weight of butyl rubber; 30 to 70% by weight of an inorganic filler; Tackifier 8 to 28 weight; 3 to 15% by weight of a modifier; 0.1 to 5% by weight of pigment; 0.1 to 5% by weight of an additive.

The butyl rubber composition is used as a structure of the rubber sheet 110. The rubber sheet 110 is bonded to the topsheet 120 and the release sheet 130 bonded to the topsheet 120, (100).

The vibration-proof sheet 110 thus formed has the following advantages.

First, since the butyl rubber composition, which is a polymer compound having excellent adhesion and durability, is used as a main component, it has an advantage of exhibiting excellent adhesion to metal surfaces such as various types of steel and painted surfaces.

Second, the vibration energy generated from the noise and vibration source, which is a main function of the soundproof and vibration proof sheet, is effectively reduced to improve the loss coefficient, thereby exhibiting excellent vibration damping effect and sound insulation effect.

Third, there is an advantage that the heat resistance is excellent by supplementing the flowability and temperature dependency at high temperature which is a disadvantage of the conventional vibration damping material.

Fourth, there is an advantage that it is excellent in durability, weather resistance, electrical insulation, water tightness and crack filling ability.

Fifth, since the metal surface is shielded from water and air, it has a merit that it can obtain a corrosion effect.

Sixth, since there is a characteristic of self-adhesive type, there is an advantage that construction is easy.

Therefore, the vibration-damping sheet 100 using the butyl rubber composition of the present invention is not limited to the use range such as building, civil engineering structures, machinery, automobiles, ships, trains, It can be effectively used as dustproof, soundproofing, and damping material.

Each of the components forming the butyl rubber composition of the present invention will be described in more detail as follows.

Table 1 shows the compounding ratio of the components forming the butyl rubber composition.

First, butyl rubber is a kind of synthetic rubber produced in a factory in general use, and is excellent in viscosity and adhesion, and is excellent in heat resistance and cold resistance.

There are various grades of butyl rubber, but the grade of butyl rubber is not limited in the present invention.

In the butyl rubber composition of the present invention, 10 to 30 wt% of butyl rubber is incorporated.

When the butyl rubber is incorporated in an amount of less than 10% by weight, the amount of the butyl rubber to be used is too small to reduce physical properties such as elasticity and elongation, and the filling property peculiar to butyl rubber is not sufficiently exhibited.

On the other hand, when the butyl rubber is incorporated in an amount exceeding 30% by weight, the amount of the butyl rubber is more than necessary, which is economically disadvantageous.

The inorganic filler incorporated in the butyl rubber composition of the present invention in an amount of 30 to 70 wt% is one selected from the group consisting of calcium carbonate, talc, silica, mica, clay, fly ash and bentonite or a mixture of two or more thereof.

When the mixing amount of the inorganic filler is less than 30% by weight, the compressive strength of the vibration insulating sheet 100 of the product is lowered. On the other hand, when the mixing amount of the inorganic filler is more than 70% by weight, It is a factor that hinders physical properties such as adhesive strength.

The tackifier which is incorporated in the butyl rubber composition of the present invention in an amount of 8 to 28% by weight may be any one of a petroleum resin, polybutene, rosin (rosin) and rosin ester or a mixture of two or more thereof.

The petroleum resin may be any one of a C5 series, a C9 series, a copolymer resin, and a hydrogenated resin, or a mixture of two or more thereof.

Polybutene has various grades, but the grades of the polybutene are not limited in the present invention.

When the content of the tackifier is less than 8% by weight, the function as a pressure-sensitive adhesive is deteriorated. When the content of the tackifier is more than 28% by weight, the tackifier is economically disadvantageous.

The modifying material incorporated in the butyl rubber composition of the present invention in an amount of 3 to 15 wt% may be at least one selected from the group consisting of natural rubber (NR), SBS rubber, chloroprene rubber (CR), EPDM rubber, SBR, At least one of ethylene vinyl acetate (EVA), atati polypropylene (APP), atypical polyol (APAP), polyethylene (PE) and polypropylene (PP)

If the amount of the modifier is less than 3 wt%, there is a problem that the modifying effect is lowered because the amount of the modifier is reduced. If the modifier is used in an amount exceeding 15 wt%, the amount of the modifier becomes excessive,

The pigment incorporated in the butyl rubber composition of the present invention in an amount of 0.1 to 5 wt% is preferably any one or a mixture of two or more of carbon black, titanium dioxide (white), red iron oxide, yellow iron oxide, Do.

When the mixing amount of the pigment is less than 0.1 wt%, it is difficult to form a desired color product because the amount of the pigment to be used is small, and when it exceeds 5 wt%, the price competitiveness becomes low due to excessive use.

It is preferable that the additive incorporated in the butyl rubber composition of the present invention at 0.1 to 5 wt% is any one or a mixture of two or more of a heat stabilizer, a UV stabilizer, a flame retardant, a brightener and a lubricant.

The butyl rubber composition of the present invention, which is formed by incorporating such components, has excellent durability, damping, soundproofing and anti-vibration performance by improving the water-tightness and crack-filling properties, There is an advantage that it can be further improved.

1 is a side sectional view and a plan view of an anti-vibration sheet 100 formed using the butyl rubber composition of the present invention.

1, the vibration damping sheet 100 of the present invention comprises a topsheet 120 formed of a sound insulation sheet composition and a rubber sheet 110 laminated on the bottom of the topsheet 120 and formed of a butyl rubber composition, And a release paper 130 attached to the lower portion of the rubber sheet 110.

The topsheet 120 and the rubber sheet 110 are preferably formed to have a thickness of 0.5 to 6 mm.

The topsheet 120 coupled to the top of the rubber sheet 110 functions to maximize the performance of the rubber sheet 110 due to the sound-insulating sheet composition.

With this structure, it is possible to improve tensile strength and elongation of the vibration insulating sheet 100, and to exhibit soundproofing, dustproofing, sound insulation, and damping functions more effectively.

The sound insulating sheet composition forming the topsheet 120 comprises 20 to 50% by weight of a synthetic resin; 20 to 70% by weight of an inorganic filler; 4 to 15% by weight of a modifier; 0.1 to 8% by weight of pigment; 0.1 to 8% by weight of an additive.

Table 2 shows the composition ratio of the above sound insulation sheet composition.

Among the constituents of the sound insulation sheet composition, the synthetic resin is one kind of a synthetic resin produced in a factory as a general purpose, and is one of ethylene vinyl acetate (EVA), polyethylene (PE), polypropylene (PP), and polyvinyl chloride Or a mixture of two or more is used.

When the mixing ratio of the synthetic resin is less than 20% by weight, the strength of the vibration-proof sheet 100 is lowered. On the other hand, when the mixing ratio exceeds 50% by weight, the vibration-damping sheet 100 becomes economically disadvantageous as it becomes excessively used.

It is preferable that the inorganic filler incorporated in the sound insulating sheet composition in an amount of 20 to 70% by weight is at least one of calcium carbonate, talc, silica, mica, clay, fly ash and bentonite or a mixture of two or more thereof.

When the incorporation rate of the inorganic filler is less than 20% by weight, the compressive strength of the vibration-proof sheet 100 is lowered. On the other hand, when the incorporation rate exceeds 70% by weight, the amount of use becomes excessive and the elasticity, elongation, And the like.

Modifiers which are incorporated in the noise insulating sheet composition in an amount of 4 to 15 wt% include natural rubber (NR), esbese rubber (SBS), cloroprene rubber (CR), epidymium rubber (EPDM), sbearimu (SBR), ethylene vinyl acetate (EVA), atty polypropylene (APP), atypical polyoletine (APAP), polyethylene (PE) and polypropylene (PP) or a mixture of two or more thereof.

If the amount of the modifier is less than 4% by weight, the amount of modifier may be too small to reduce the modifying effect. If the amount of the modifier is more than 15% by weight, the amount of the modifier may become excessive and economically disadvantageous.

It is preferable that the pigment incorporated in the soundproof sheet composition in an amount of 0.1 to 8 wt% is any one or a mixture of two or more of carbon black, titanium dioxide (white), red iron oxide, yellow iron oxide, inorganic pigment containing iron oxide or organic pigment.

If the amount of the pigment incorporated is less than 0.5% by weight, it is difficult to achieve a desired color. If the amount of the pigment is more than 8% by weight, the cost competitiveness is lowered.

It is preferable that the additive incorporated in the noise insulating sheet composition in an amount of 0.1 to 8 wt% is any one or a mixture of two or more of a heat stabilizer, a UV stabilizer, a flame retardant, a brightener and a lubricant.

The dustproof sheet 100 of the present invention is applied by the following construction method.

First, a step of removing contaminants on the adherend surface is performed.

Next, after separating the release paper 130, a step of attaching the vibration insulating sheet 100 to the adherend surface is performed.

For complete adhesion, a step of removing air by pressing the outer surface of the vibration insulating sheet 100 by using a tool such as a roller.

Hereinafter, experimental examples for explaining the effects of the present invention will be described.

First, an experiment was conducted to verify the performance of the butyl rubber composition of the present invention.

Table 3 shows the composition ratio of the butyl rubber composition of the present invention used in the performance verification test.

Table 4 shows the results of measurement of physical properties for Examples 1 to 3 shown in Table 3. < tb > < TABLE >

As shown in Table 4, the butyl rubber compositions of the present invention, i.e., Examples 1 to 3, are superior in heat resistance and cold resistance, and have excellent specific gravity and adhesive strength.

Next, an experiment was conducted to verify the performance of the sound insulation sheet composition of the present invention.

Table 5 shows the compounding ratio of the sound insulating sheet composition of the present invention used in the performance verification test.

Table 6 shows the results of measurement of physical properties for Examples 1 to 3 shown in Table 5. < tb > < TABLE >

As shown in Table 6, as compared with the comparative example, it can be confirmed that the sound insulating sheet composition of the present invention, that is, Examples 1 to 3 is excellent in tensile strength and elongation, and excellent in specific gravity and tensile performance.

Table 7 shows the results of measuring the physical properties of the sound insulating sheet composition of the present invention and the butyl rubber composition.

Table 8 shows the color, dimensions, and components of the vibration-damping sheet 100 used in the measurement of physical properties.

As described above, the topsheet 120 formed of the sound insulation sheet composition of the present invention is disposed on the upper side, and the rubber sheet 110 (110) having the adhesive rubbery composition having sound insulation, damping, So that various soundproofing and dustproofing performance can be effectively exhibited.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. It is to be understood that both the technical idea and the technical spirit of the invention are included in the scope of the present invention.

100: dustproof sheet 110: rubber sheet
120: top sheet 130: release sheet

Claims (17)

10 to 30% by weight of butyl rubber;
30 to 70% by weight of an inorganic filler;
Tackifier 8 to 28 weight;
3 to 15% by weight of a modifier;
0.1 to 5% by weight of pigment;
0.1 to 5% by weight of an additive;
≪ / RTI > The method according to claim 1,
The inorganic filler
Wherein the composition is one or a mixture of two or more of calcium carbonate, talc, silica, mica, clay, fly ash and bentonite. The method according to claim 1,
The tackifier
Petroleum resin, polybutene, rosin (rosin) and rosin ester, or a mixture of two or more thereof. The method of claim 3,
The petroleum resin
C5-based, C9-based, copolymerized resin, and hydrogenated resin, or a mixture of two or more thereof. The method according to claim 1,
The modifying material
(NR), SBS rubber, chloroprene rubber (CR), EPDM rubber, SBR, ethylene vinyl acetate (EVA), atati polypropylene (APP) Wherein the rubber composition is one of polyoletine (APAP), polyethylene (PE), and polypropylene (PP) or a mixture of two or more thereof. The method according to claim 1,
The pigment
Wherein the composition is any one or a mixture of two or more of carbon black, titanium dioxide (white), red iron oxide, yellow iron oxide, iron oxide or an organic pigment. The method according to claim 1,
The additive
A heat stabilizer, a UV stabilizer, a flame retardant, a brightener, and a lubricant, or a mixture of two or more thereof. An anti-vibration sheet (100) using the butyl rubber composition according to any one of claims 1 to 7,
A topsheet 120 formed of a sound insulation sheet composition;
A rubber sheet 110 laminated on the lower surface of the topsheet 120 and formed of the butyl rubber composition;
A release paper 130 attached to a lower portion of the rubber sheet 110;
(100). ≪ / RTI > 9. The method of claim 8,
The sound insulating sheet composition
20 to 50% by weight of a synthetic resin;
20 to 70% by weight of an inorganic filler;
4 to 15% by weight of a modifier;
0.1 to 8% by weight of pigment;
0.1 to 8% by weight of an additive;
(100). ≪ / RTI > 9. The method of claim 8,
The synthetic resin
A vibration damping sheet (100) characterized by being a mixture of any one of ethylene vinyl acetate (EVA), polyethylene (PE), polypropylene (PP) and polyvinyl chloride (PVC) 9. The method of claim 8,
The inorganic filler
(100) characterized in that it is a mixture of any one or more of calcium carbonate, talc, silica, mica, clay, fly ash and bentonite. 9. The method of claim 8,
The modifying material
(NR), SBS rubber, chloroprene rubber (CR), EPDM rubber, SBR, ethylene vinyl acetate (EVA), atati polypropylene (APP) Wherein the vibration damping sheet (100) is made of one or more of polyoletine (APAP), polyethylene (PE) and polypropylene (PP). 9. The method of claim 8,
The pigment
(100), characterized in that it is any one or a mixture of two or more of carbon black, titanium dioxide (white), red iron oxide, yellow iron oxide, iron oxide or an organic pigment. 9. The method of claim 8,
The additive
An antioxidant, a heat stabilizer, a UV stabilizer, a flame retardant, a brightener, and a lubricant, or a mixture of two or more thereof. 9. The method of claim 8,
The topsheet 120 is
(100) having a thickness of 0.5 to 6 mm. 9. The method of claim 8,
The rubber sheet (110)
(100) having a thickness of 0.5 to 6 mm. A method of constructing a dustproof sheet for installing the dustproof sheet (100) of claim 8,
Removing contaminants on the adherend surface;
Attaching the dustproof sheet (100) to the adherend surface after separating the release paper (130);
Pressing the outer surface of the dustproof sheet 100 to remove air;
Wherein the vibration-damping sheet is made of a metal.

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