JPH1192675A - Highly attenuating material composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a highly attenuating material composition having excellent attenuating characteristics and capable of controlling a peak temperature of tan δ and easily processing. SOLUTION: This highly attenuating material composition is obtained by blending 100 wt.% of a chlorinated polyethylene and 50 wt.% of N,N- dicyclohexylbenzothiazoyl-2-sulfenamide and further respectively blending 30 wt.%, 50 wt.% 70 wt.% and 100 wt.% TCP in the resultant blend and kneading the mixtures to form samples, which are heat molded in a predetermined mold at 100-200 deg.C for about 10 minutes by a hot press.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-attenuation material composition, and more particularly, to a vibration-absorbing or sound-absorbing material applied to a sound insulation wall of an acoustic room, a sound insulation partition of a building structure, a sound insulation wall of a vehicle, and the like. The present invention relates to a high damping material composition as a vibration material and a soundproofing material.

[0002]

2. Description of the Related Art A polymer material as a high damping material composition of this type exhibits a typical viscoelastic behavior.
When the material minute portion vibrates for some reason, a complex sinusoidal strain (ε ^* ) is generated in each material minute portion, thereby generating a complex sinusoidal stress (σ ^* ). Complex modulus of elasticity (E
^* ) Is the ratio of these, as shown in the following equation. Complex elastic modulus (E ^* ) = complex sinusoidal stress (σ ^* )
/ Complex sine distortion (ε ^* )

The real part of the complex elastic modulus (E ^* ) is defined as the storage elastic modulus (E ') relating to the elastic properties of the material, and the imaginary part thereof is the loss elasticity relating to the viscous properties of the material. The loss tangent is the ratio of these, as shown in the following equation: loss tangent (tan δ) = loss elastic modulus (E ″) / storage elastic modulus ( E ')

The loss tangent (hereinafter simply referred to as “tan δ”) is one of the factors that determine the soundproofing / damping characteristics. The higher this value is, the more the mechanical energy is absorbed or released as electric or thermal energy. Thus, it is known to exhibit mechanical properties such as excellent sound absorbing properties and vibration damping properties. The value determined as tan δ of the high damping material composition is 0.5 or more, preferably 1.0 or more.

Therefore, the applicant of the present application has proposed the required characteristic (ta).
As a high attenuation material composition exhibiting a high tan δ satisfying nδ ≧ 1), in Japanese Patent Application No. 9-12387, an additive is dispersed in a base polymer material at a predetermined volume ratio, and a heat treatment step and a molding step are performed. Proposed material is proposed. This high damping material composition comprises N, N-dicyclohexylbenzothiazyl-2- as a vulcanization accelerator as an additive.
Using sulfenamide (manufactured by Sanshin Chemical Industry Co., Ltd .: trade name “Suncellar DZ”), as a base polymer material,
It is made of chlorinated polyethylene (manufactured by Showa Denko KK: trade name "Eraslen 401A"), and its tan δ
Is increased as the amount of the vulcanization accelerator is increased.

[0006]

However, a vulcanization accelerator (N, N-dicyclohexylbenzothiazyl-2-sulphate) disclosed in Japanese Patent Application Nos. 9-12387 and 9-137665 is used as an additive. High attenuation material composition using phenamide) and chlorinated polyethylene as the base polymer material increases tan δ as the amount of the additive is increased, but processing increases when the amount is too large. The above problem comes up. That is, the amount of the additive is limited. Therefore, there is a limit to the value of tan δ that can be expressed, and the desired high attenuation performance cannot be obtained. On the other hand, since additives are relatively expensive, there is also a problem in that if they are used in large amounts, production costs will increase.

In general, the temperature characteristic of tan δ of a high attenuation material is not constant, and the value of tan δ that can be expressed differs depending on the temperature environment to which it is applied. Therefore, even if the peak value of tan δ of the high attenuation material is high, if the peak temperature is far from the temperature at which the soundproofing / damping control is required, the value of tan δ may decrease,
The desired high attenuation performance cannot be obtained.

An object of the present invention is to provide a high-damping material composition which has excellent damping performance, can control the peak temperature of tan δ, and is easy to process, and is inexpensive. .

[0009]

Means for Solving the Problems In order to solve this problem, the high attenuation material composition of the present invention is obtained by mixing an additive with a base polymer material having a polar side chain and further mixing an ester plasticizer. The gist is that.

In this case, the "base polymer material" having a polar side chain includes natural rubber, modified natural rubber, grafted natural rubber, cyclized natural rubber, chlorinated natural rubber, styrene-butadiene rubber, chloroprene rubber, acrylonitrile -Butadiene rubber, carboxylated nitrile rubber,
Nitrile rubber / vinyl chloride resin blend, nitrile rubber / EPDM rubber blend, butyl rubber, brominated butyl rubber, chlorinated butyl rubber, ethylene-vinyl acetate rubber,
Rubber materials such as acrylic rubber, ethylene-acryl rubber, chlorosulfonated polyethylene, chlorinated polyethylene, epichlorohydrin rubber, epichlorohydrin-ethylene oxide rubber, methyl silicone rubber, vinyl-methyl silicone rubber, phenyl-methyl silicone rubber, and fluorosilicon rubber; Polystyrene-based thermoplastic elastomer, polyvinyl chloride-based thermoplastic elastomer, polyolefin-based thermoplastic elastomer, polyurethane-based thermoplastic elastomer, polyester-based thermoplastic elastomer, polyamide-based thermoplastic elastomer, vinyl chloride-based thermoplastic elastomer, fluororubber-based thermoplastic Elastomers, thermoplastic elastomer materials such as chlorinated polyethylene elastomers, polyvinyl chloride, chlorinated polypropylene, polyvinyl chloride , Polyvinyl acetate, polyvinyl alcohol, polyvinyl fluoride, polyvinylidene fluoride, polyacrylonitrile, polymethyl methacrylate, styrene-acrylonitrile copolymer, acrylonitrile-butadiene-styrene terpolymer, vinyl chloride At least one or two or more selected from polymer resin materials such as vinyl acetate copolymer, acrylic / vinyl chloride graft copolymer, ethylene / vinyl chloride copolymer, ethylene / vinyl alcohol, and chlorinated vinyl chloride; Base polymer materials are mentioned as suitable.

[0011] Further, as the "additive", the second
It is desirable to have two or three amine compounds selected from tertiary amines or tertiary amines. Because it is possible to give Such “additives” include N-cyclohexylbenzothiazyl-2-sulfenamide, N-tert-butylbenzothiazyl-2-sulfenamide, N-oxydiethylenebenzothiazyl-2-sulfenamide Amides, N, N
-Sulfenamide-based additives such as -dicyclohexylbenzothiazyl-2-sulfenamide, 2- (2'-hydroxy-3 '-(3 ", 4", 5 ", 6" -tetra-hydrophthalimide-methyl) ) -5'-Methylphenyl)
-UV absorbers such as benzotriazole, 2- (N, N
-Diethylthiocarbamoylthio) benzothiazole,
Thiazole additives such as 2- (4'-morpholinodithio) benzothiazole, thiurams such as tetraethylthiuram disulfide and tetrabutylthiuram disulfide, 1- [N, N-bis (2-ethyl-hexyl)
Rust inhibitors such as [aminomethyl] benzotriazole,
Epoxy resin curing accelerator such as 4,6-tri (dimethylaminomethyl) phenol, unsaturated resin crosslinking agent such as triallyl isocyanurate, special amine, N, N ', N "-
Tris (dimethylaminopropyl) hexahydro-S-
Urethane catalysts such as triazine, N, N, N-tris (3-dimethylaminopropyl) amine, N-methyl-N, N-bis (3-dimethylaminopropyl) amine; lubricating oils such as methylenebis (dibutyldithiocarbamate) One or more additives selected from additives (antioxidants) are preferred.

Further, the "ester-based plasticizer" includes phosphate-based plasticizers such as tricresyl phosphate and trixylenyl phosphate, and dioctyl phthalate, dicyclohexyl phthalate, dimethylcyclohexyl phthalate and diphenyl phthalate. At least one or two or more ester plasticizers selected from phthalate plasticizers are preferred.

The amount of the additive is preferably 30 to 150% by weight based on 100% by weight of the base polymer material. The amount of the ester plasticizer is preferably 100% by weight of the base polymer material. 30 to 1
It is desirably 00% by weight. Additive amount of additive is 3
0% by weight or less than 30% by weight of the plasticizer.
If the amount is less than 15% by weight, high damping performance is not exhibited. On the other hand, if the amount of the additive is more than 150% by weight or the amount of the plasticizer is more than 100% by weight, the resulting material substrate is processed. Worse.

When the amounts of the additives and the plasticizer are within the above ranges, the interaction between the base polymer material and the additive and the interaction between the base polymer material and the plasticizer maintain the material properties such as processability. High t
It is presumed that it effectively contributes to the expression of anδ.

According to the high damping material composition having the above structure, the interaction between the chain molecules of the base polymer material is blocked by the addition of the plasticizer. A reversible interaction works between. Therefore, in the high attenuation material composition, when the amount of the plasticizer added is increased or decreased, the peak temperature of tan δ shifts while exhibiting excellent attenuation performance. Therefore, the temperature characteristic of tan δ of the high attenuation material composition is controlled by increasing or decreasing the amount of the plasticizer.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail. In the following description, “% by weight” means the percentage by weight of the compounding component with respect to 100% by weight of the base polymer material.

First, Table 1 shows that chlorinated polyethylene was used as a base polymer material, and N, N
-Dicyclohexylbenzothiazyl-2-sulfenamide was added, and tricresyl phosphate was further added as an ester plasticizer. The material composition and loss factor of the present invention (Examples 1 to 6) (hereinafter simply referred to as “tanδ”) "), Chlorinated polyethylene as the base polymer material, N, N-dicyclohexylbenzothiazyl-2-sulfenamide as an additive, and an ester plasticizer. FIG. 3 shows the comparison of the results of measurement of the material composition and tan δ of the products of the present invention (Examples 7 to 9) in which dioctyl phthalate was blended.

[0018]

[Table 1]

The product of the present invention (Examples 1 to 6) was prepared by adding “Eraslen 401” manufactured by Showa Denko KK to chlorinated polyethylene.
A "(trade name)," Suncellar DZ "(trade name) manufactured by Sanshin Chemical Industry Co., Ltd. for N, N-dicyclohexylbenzothiazyl-2-sulfenamide, and phosphorus as a plasticizer "TCP" (trade name) manufactured by Daihachi Chemical Industry Co., Ltd. is used for tricresyl acid. The product of the present invention (Examples 1 to 6)
A 100% by weight of A and Suncerar DZ, 30% by weight for Example 1, 50% by weight for Examples 2 to 5, 100% by weight for Example 6, and
TCP was 50% by weight for Examples 1, 3 and 6, 30% by weight for Example 2, and 100% for Example 5.
% By weight and kneaded, and the kneaded material is heated in a predetermined mold by a hot press at a temperature of 100 to 200 ° C. for 10 minutes.
Heat molded for about a minute. As the temperature conditions,
170 ° C is selected.

In the products of the present invention (Examples 7 to 9), "DOP" (trade name) manufactured by Mitsubishi Monsanto Kasei Vinyl Co., Ltd. was used for dioctyl phthalate as a plasticizer. And the same ones as in Examples 1 to 6 are used. This product of the present invention (samples 7 to 9) is obtained by blending 50% by weight of Sunceler DZ with 100% by weight of Eraslen 401A, and further adding 30% of DOP.
%, 50% by weight, and 70% by weight were mixed and kneaded, and were subjected to heat molding in the same steps as in Examples 1 to 6.

Table 2 shows that chlorinated polyethylene was used as a base polymer material, and N, N
3 is a comparison of the results of measurement of the material composition, tan δ, and the like of comparative products (Comparative Examples 1 to 3) in which -dicyclohexylbenzothiazyl-2-sulfenamide was blended. Incidentally, the comparative product does not contain a plasticizer.

[0022]

[Table 2]

Comparative products (Comparative Examples 1 to 3) were chlorinated polyethylene and N, N-dicyclohexylbenzothiazyl-
The same product as the product of the present invention (Examples 1 to 9) is used for 2-sulfenamide, and Suncellor DZ is blended with 100% by weight of Eraslen 401A and 30% by weight, 50% by weight, and 100% by weight, respectively. The mixture was kneaded and heat-formed by the same steps as in Examples 1 to 9.

Next, using a spectrometer manufactured by Rheology Co., Ltd., the distortion was 10 μm (constant) and the frequency was 15 μm.
Hz (constant), while changing the environmental temperature, the peak value of tan δ immediately after molding of the product of the present invention (Samples 1 to 9) and the comparative product (Comparative Samples 1 to 3) was measured. It was measured. Hereinafter, this result will be described.

As shown in Tables 1 and 2, the products of the present invention (samples 1 to 6) and comparative products (comparative samples 1 to 3) having the same amount of Suncellor DZ, for example, sample 1 and comparative sample 1
Comparing Samples 2 to 5 with Comparative Sample 2 and Sample 6 with Comparative Sample 3 respectively, tan δ of the product of the present invention shows a relatively higher value than tan δ of the comparative product. From this, it can be seen that tan δ is higher when TCP is added than when no plasticizer is added.

On the other hand, regarding the relationship between the amount of TCP and the peak temperature, the peak temperature of the product of the present invention (samples 2 to 5)
As the amount of TCP added increases, the temperature shifts to the lower temperature side. Therefore, the relationship between the addition of TCP and the peak temperature was determined for Sample 1 and Comparative Sample 1 (or Samples 2 to 5 and Comparative Sample 2, and Sample 6 and Comparative Sample 3) in which the amount of Suncellor DZ was the same. In comparison, the peak temperature of the product of the present invention is shifted to a lower temperature side than the peak temperature of the comparative product. From this, if TCP is added, the peak temperature can be shifted to the low temperature side. If the amount of addition is increased, the peak temperature is shifted to the lower temperature side, while if the addition amount is small, the TCP is decreased. It can be seen that the peak temperature can be brought close to the peak temperature without the addition.

As described above, it is effective to newly add TCP, which is an ester plasticizer, to increase tan δ, and to increase or decrease the amount of tan δ to provide high attenuation. Further, it can be seen that the peak temperature can be controlled. Product of the present invention (Samples 1 to
According to 6), the interaction between the chain molecules of the base polymer material is blocked by the blended TCP, and the elaslen 40
Interaction between the chain molecules of 1A and Suncellar DZ and interaction with TCP also act, so that the loss elastic modulus E ″ increases, and tan
δ will be higher.

Next, as shown in Tables 1 and 2, the products of the present invention (samples 7 to 10) having the same amount of Suncellar DZ were used.
9) and the comparative product (Comparative Sample 2), tan δ of the product of the present invention is still relatively higher than tan δ of the comparative product. This indicates that tan δ is higher even when DOP is added than when no plasticizer is added. According to the measurement results of the product of the present invention (samples 7 to 9), the relationship between the compounding amount of DOP and tan δ is as follows.
The value of tan δ is almost flat, although tan δ is slightly lower when the amount of DOP added is 50% by weight. The relationship between the peak temperature of the product of the present invention (samples 7 to 9) and the amount of DOP added is such that the peak temperature shifts to a lower temperature as the amount of DOP added increases.

As described above, the addition of a new ester plasticizer, DOP, is effective in increasing tan δ, and by increasing or decreasing the amount of addition, a high damping property is obtained. In addition, it can be seen that the peak temperature can be shifted. The product of the present invention (sample 1
To 9) exhibited relatively high tan δ, and were all evaluated as very good (marked with ◎).

Next, Table 3 shows that chlorinated polyethylene was used as the base polymer material,
(2'-hydroxy-3 '-(3 ", 4", 5 ", 6"
-Tetra-hydrophthalimidomethyl) -5'-methylphenyl) -benzotriazole, and furthermore, tricresyl phosphate was further compounded (Examples 10 to 1).
4) The measurement results of the material composition and tan δ, etc., and chlorinated polyethylene was also used as the base polymer material, and 2- (2′-hydroxy-3′-) was used as an additive.
Measurement results of material composition and tan δ of comparative products (Comparative Examples 4 and 5) containing (3 ″, 4 ″, 5 ″, 6 ″ -tetra-hydrophthalimidomethyl) -5′-methylphenyl) -benzotriazole Are shown in comparison.

[0031]

[Table 3]

The product of the present invention (Examples 10 to 14)
-(2′-hydroxy-3 ′-(3 ″, 4 ″, 5 ″,
For 6 "-tetra-hydrophthalimidomethyl) -5'-methylphenyl) -benzotriazole," Sumisorb 250 "(trade name) manufactured by Sumitomo Chemical Co., Ltd. was used. Is the same as The product of the present invention (Examples 10 to 14)
Example 10 Sumisorb 250 was added to 100% by weight of 1A.
In addition, 50% by weight for Example 12, 100% by weight for Examples 13 and 14, and 30% by weight of TCP for Examples 10 and 13, 50% by weight for Examples 11 and 14, and Example. 70% by weight for 12
The mixture is kneaded and kneaded, and this kneaded material is heated and molded in a predetermined mold at a temperature of 100 to 200 ° C. for about 10 minutes by a hot press machine. As the temperature condition, 17
0 ° C is selected.

The comparative product (Comparative Examples 4 and 5) was Eraslen 4
Sumisorb 250 was added to 100% by weight of 01A, respectively.
50% by weight and 100% by weight were mixed and kneaded.
This was heat-formed by the same process as in Nos. 1 to 14. Incidentally, in Comparative Examples 4 and 5, no ester plasticizer was blended.

Next, using a spectrometer manufactured by Rheology Co., Ltd., under the same conditions and method as above, the tan δ immediately after molding of the product of the present invention (samples 10 to 14) and the comparative products (comparative samples 4 and 5) were obtained. Was measured, and the environmental temperature at that time was measured. Hereinafter, this result will be described.

As shown in Table 3, the products of the present invention (samples 10 to 14) and the comparative products (comparative samples 4 and 5), for example, samples 10 to 12 in which the amount of Smithop 250 was the same, were compared. Comparing Sample 4 (or Samples 13 and 14 with Comparative Sample 5), the tan δ of the product of the present invention was found to be ta of the comparative product.
It shows a value relatively higher than nδ. From this, even when Sumisorb 250 was used as an additive, the addition of TCP resulted in a higher tan δ than that without the addition of a plasticizer.
It turns out that becomes high. The amount of this TCP and tan
Although it is related to δ, according to the measurement results of the product of the present invention (Samples 10 to 12 or Samples 13 to 14), tan δ
Increases as the amount of TCP added increases.

On the other hand, the peak temperature of the product of the present invention (samples 10 to 12 or samples 13 to 14) shifts to a lower temperature as the amount of TCP added increases. Therefore, the relationship between the addition of TCP and the peak temperature is compared between Samples 10 to 12 and Comparative Sample 4 (or Samples 13 to 14 and Comparative Sample 5) having the same amount of Smithsorb 250. The peak temperature of the product of the present invention is shifted to a lower temperature than the peak temperature of the comparative product.
From this, if TCP is added, the peak temperature can be shifted to the low temperature side. If the amount of addition is increased, the peak temperature is shifted to the lower temperature side, while if the addition amount is small, the TCP is decreased. It can be seen that the peak temperature can be brought close to the peak temperature without the addition.

Next, Sample 2 was compared with the case where Suncellar DZ was used as an additive and the case where Sumisorb 250 was used as an additive.
4 to Samples 10 to 12, Samples 2 to 4
Is similar to the tan δ of Samples 10 to 12, but the peak temperatures of Samples 2 to 4 are lower than the peak temperatures of Samples 10 to 12 as a whole. From this, tanδ depends on the additive to be added.
It can be seen that the peak value and its peak temperature can be controlled.

As described above, when a benzotriazole-based additive, which is an ultraviolet absorber, is used as an additive, it is effective to increase tan δ by newly adding a TCP, which is an ester-based plasticizer. Also, it can be seen that by increasing or decreasing the amount of addition, the peak temperature can be shifted while providing high attenuation. In addition, the product of the present invention (samples 10 to 14) has a relatively high tan.
Since they exhibited δ, they were all evaluated as very good (marked with ◎).

The present invention is not limited to the embodiment described above, and various modifications are possible. For example, in place of chlorinated polyethylene used in the above examples, natural rubber, modified natural rubber, grafted natural rubber, cyclized natural rubber, chlorinated natural rubber, styrene-butadiene rubber, chloroprene rubber, acrylonitrile-butadiene rubber, Carboxylated nitrile rubber, nitrile rubber / vinyl chloride resin blend, nitrile rubber / EPDM rubber blend, butyl rubber, brominated butyl rubber, chlorinated butyl rubber, ethylene-vinyl acetate rubber, acrylic rubber, ethylene-acryl rubber, chlorosulfonated polyethylene, epichlorohydrin Rubber materials such as rubber, epichlorohydrin-ethylene oxide rubber, methyl silicone rubber, vinyl-methyl silicone rubber, phenyl-methyl silicone rubber, silicon fluoride rubber, polystyrene-based thermoplastic elastomer, Vinyl chloride thermoplastic elastomer, polyolefin thermoplastic elastomer, polyurethane thermoplastic elastomer, polyester thermoplastic elastomer, polyamide thermoplastic elastomer, vinyl chloride thermoplastic elastomer, fluoro rubber thermoplastic elastomer, chlorinated polyethylene elastomer Thermoplastic elastomer materials such as polyvinyl chloride, chlorinated polypropylene, polyvinylidene chloride, polyvinyl acetate, polyvinyl alcohol, polyvinyl fluoride, polyvinylidene fluoride, polyacrylonitrile, polymethyl methacrylate, and styrene / acrylonitrile Polymer, acrylonitrile / butadiene / styrene terpolymer, vinyl chloride / vinyl acetate copolymer, acrylic / vinyl chloride graft copolymer, ethylene / salt Vinyl copolymer, ethylene-vinyl alcohol, at least one selected from the polymeric resin material such as chlorinated vinyl chloride or 2
More than one base polymer material can be used.

Further, N, N-dicyclohexylbenzothiazyl-2-sulfenamide and 2- (2′-hydroxy-3 ′-(3 ″, 4 ″, 5 ″, 6 ″ -tetra-hydrophthalimido-methyl) ) -5'-Methylphenyl) -benzotriazole, instead of N-cyclohexylbenzothiazyl-2-sulfenamide, N-tert-butylbenzothiazyl-2-sulfenamide, N-oxydiethylenebenzothiazyl -2-sulfenamide and other sulfenamide-based additives, 2- (N, N-diethylthiocarbamoylthio) benzothiazole, 2- (4′-
Thiolin-based additives such as morpholinodithio) benzothiazole, thiuram-based additives such as tetraethylthiuram disulfide and tetrabutylthiuram disulfide, 1-
Rust inhibitors such as [N, N-bis (2-ethyl-hexyl) aminomethyl] benzotriazole, epoxy resin curing accelerators such as 2,4,6-tri (dimethylaminomethyl) phenol, triallyl isocyanurate and the like Unsaturated resin crosslinking agent, special amine, N, N ′, N ″ -tris (dimethylaminopropyl) hexahydro-S-triazine,
Urethane catalysts such as N, N, N-tris (3-dimethylaminopropyl) amine and N-methyl-N, N-bis (3-dimethylaminopropyl) amine; lubricating oil additives such as methylenebis (dibutyldithiocarbamate) One or two or more additives selected from (antioxidants) can be applied.

Further, instead of tricresyl phosphate or dioctyl phthalate used as an ester plasticizer, a phosphate ester plasticizer such as trixylenyl phosphate or dicyclohexyl phthalate phthalate, dimethylcyclohexyl phthalate, diphenyl phthalate, etc. At least one or two selected from phthalate ester plasticizers
More than one ester plasticizer can also be used.

[0042]

According to the high attenuation material composition of the present invention, an additive is blended with a base polymer material having a polar side chain,
Furthermore, since it contains an ester-based plasticizer, reversible interaction acts between the chain molecules of the base polymer material and the additive, and between the chain molecules and the plasticizer. Since reversible interaction works, excellent high attenuation can be provided. Also,
By changing the amount of the plasticizer to be added, the peak temperature can be controlled while providing such excellent high damping properties.

Furthermore, by adding a plasticizer,
The obtained high damping material can be easily processed, and the amount of the relatively expensive additive can be reduced, so that the high damping material composition can be provided at low cost.
Further, by laminating a plurality of high-damping material compositions having the same blending components but different temperature characteristics, desired damping performance can be exhibited even in an environment where temperature changes are large. Therefore, widespread dissemination to the general public is desired.

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI C08L 7/00 C08L 7/00 9/00 9/00 11/00 11/00 13/00 13/00 19/00 19/00 23/08 23/08 C09K 3/00 C09K 3/00 P F16F 7/00 F16F 7/00 B 15/08 15/08 D

Claims (6)

[Claims] 1. A high-damping material composition comprising a base polymer material having a polar side chain, an additive, and an ester plasticizer. 2. The base polymer material is a natural rubber,
Modified natural rubber, grafted natural rubber, cyclized natural rubber, chlorinated natural rubber, styrene-butadiene rubber, chloroprene rubber, acrylonitrile-butadiene rubber, carboxylated nitrile rubber, nitrile rubber / vinyl chloride resin blend, nitrile rubber / EPDM rubber Blend, butyl rubber, brominated butyl rubber, chlorinated butyl rubber, ethylene-vinyl acetate rubber, acrylic rubber, ethylene-acryl rubber, chlorosulfonated polyethylene, chlorinated polyethylene, epichlorohydrin rubber, epichlorohydrin-
Ethylene oxide rubber, methyl silicone rubber, vinyl-
Methyl silicone rubber, phenyl-methyl silicone rubber,
Rubber materials such as fluorinated silicon rubber, polystyrene-based thermoplastic elastomer, polyvinyl chloride-based thermoplastic elastomer, polyolefin-based thermoplastic elastomer, polyurethane-based thermoplastic elastomer, polyester-based thermoplastic elastomer, polyamide-based thermoplastic elastomer,
Thermoplastic elastomer materials such as vinyl chloride thermoplastic elastomer, fluoro rubber thermoplastic elastomer, chlorinated polyethylene elastomer, polyvinyl chloride, chlorinated polypropylene, polyvinylidene chloride, polyvinyl acetate, polyvinyl alcohol, polyvinyl fluoride, Polyvinylidene fluoride, polyacrylonitrile, polymethyl methacrylate, styrene / acrylonitrile copolymer, acrylonitrile / butadiene / styrene terpolymer, vinyl chloride / vinyl acetate copolymer, acrylic / vinyl chloride graft copolymer At least one or two selected from polymer resin materials such as coalesce, ethylene-vinyl chloride copolymer, ethylene-vinyl alcohol, and chlorinated vinyl chloride.
The high damping material composition according to claim 1, wherein the composition comprises at least one base polymer material. 3. The additive may be N-cyclohexylbenzothiazyl-2-sulfenamide, N-tert-butylbenzothiazyl-2-sulfenamide, N-oxydiethylenebenzothiazyl-2-sulfen. Amide,
Sulfenamide-based additives such as N, N-dicyclohexylbenzothiazyl-2-sulfenamide, 2- (2 ′
Ultraviolet absorbers such as -hydroxy-3 '-(3 ", 4", 5 ", 6" -tetra-hydrophthalimido-methyl) -5'-methylphenyl) -benzotriazole;
Thiazole additives such as (N, N-diethylthiocarbamoylthio) benzothiazole and 2- (4′-morpholinodithio) benzothiazole, thiurams such as tetraethylthiuram disulfide and tetrabutylthiuram disulfide, 1- [N , N-bis (2-ethyl-hexyl) aminomethyl] benzotriazole, etc., epoxy resin curing accelerators such as 2,4,6-tri (dimethylaminomethyl) phenol, non-rust agents such as triallyl isocyanurate, etc. Saturated resin crosslinking agent, special amine, N,
N ', N "-tris (dimethylaminopropyl) hexahydro-S-triazine, N, N, N-tris (3-dimethylaminopropyl) amine, N-methyl-N, N-
Urethane catalysts such as bis (3-dimethylaminopropyl) amine, methylene bis (dibutyldithiocarbamate)
The high-damping material composition according to claim 1, comprising one or more additives selected from lubricating oil additives (antioxidants). 4. The high attenuation material composition according to claim 3, wherein the amount of the additive is 30 to 150% by weight based on 100% by weight of the base polymer material. 5. The ester plasticizer is a phosphate plasticizer such as tricresyl phosphate or trixylenyl phosphate, or a phthalate ester such as dioctyl phthalate, dicyclohexyl phthalate, dimethylcyclohexyl phthalate or diphenyl phthalate. The high-attenuation material composition according to claim 1, 2, 3, or 4, comprising at least one or more ester-based plasticizers selected from plasticizers. 6. The amount of the ester-based plasticizer added is 30 to 100 with respect to 100% by weight of the base polymer material.
The high-damping material composition according to claim 5, wherein the composition is by weight.