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JP2002105321A - Vibration-damping material and resin composition used for producing the same - Google Patents

Vibration-damping material and resin composition used for producing the same

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Publication number
JP2002105321A
JP2002105321A JP2000303716A JP2000303716A JP2002105321A JP 2002105321 A JP2002105321 A JP 2002105321A JP 2000303716 A JP2000303716 A JP 2000303716A JP 2000303716 A JP2000303716 A JP 2000303716A JP 2002105321 A JP2002105321 A JP 2002105321A
Authority
JP
Japan
Prior art keywords
weight
damping material
vibration
vibration damping
resin composition
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2000303716A
Other languages
Japanese (ja)
Other versions
JP3452545B2 (en
Inventor
Hiroyuki Abe
裕幸 安部
Akihisa Miura
明久 三浦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sekisui Chemical Co Ltd
Original Assignee
Sekisui Chemical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sekisui Chemical Co Ltd filed Critical Sekisui Chemical Co Ltd
Priority to JP2000303716A priority Critical patent/JP3452545B2/en
Publication of JP2002105321A publication Critical patent/JP2002105321A/en
Application granted granted Critical
Publication of JP3452545B2 publication Critical patent/JP3452545B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Compositions Of Macromolecular Compounds (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a vibration-damping material exhibiting such excellent vibration-absorbing characteristics that a tangent of the loss angle is above 3, when the material is measured immediately after produced, and to provide a resin composition for the vibration-damping material. SOLUTION: This resin composition for the vibration-damping material is, for example, obtained by kneading 100 pts.wt. of a chlorinated polyethylene (having a chlorine content of 40 wt.%) and 250 pts.wt. of a chlorinated paraffin (having a chlorine content of 43 wt.% and an average number of carbon atoms of 25) with a roll mill. The vibration-damping material in a sheet form having a thickness of 1000 μm is, for example, produced by pressing the resin composition at 120 deg.C.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、住宅、マンショ
ン、オフィスビル等の住宅建造物、高速道路、高架橋、
鉄道軌道等の各種構造物や、自動車、鉄道車両、船舶等
の各種車両、さらには家庭電気機器、OA機器等におい
て発生する振動や騒音を低減するために使用される制振
材料、およびこれを製造するための樹脂組成物に関す
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a housing structure such as a house, an apartment, an office building, an expressway, a viaduct,
Various types of structures such as railroad tracks, various types of vehicles such as automobiles, railway vehicles and ships, as well as vibration damping materials used to reduce vibration and noise generated in home electric appliances, OA appliances, etc. It relates to a resin composition for production.

【0002】[0002]

【従来の技術】制振性の指標として、一般に損失正接
(tanδ)が使用されており、損失正接が大きいほど
材料は振動吸収性に優れている。この値が1を越えると
優れた制振材料と言われているが、更なる制振性の向上
が望まれており、損失正接が3を越える材料が望まれて
いる。優れた制振材料としては、例えば特開平11−8
0562号公報に塩素含有熱可塑性樹脂100重量部
と、平均炭素数20〜50の塩素化パラフィン100重
量部からなる樹脂組成物が開示されている。
2. Description of the Related Art Generally, a loss tangent (tan δ) is used as an index of a vibration damping property, and the larger the loss tangent is, the more excellent a material is in vibration absorption. When this value exceeds 1, it is said to be an excellent damping material, but further improvement in damping properties is desired, and a material having a loss tangent exceeding 3 is desired. As an excellent vibration damping material, for example, JP-A-11-8
No. 0562 discloses a resin composition comprising 100 parts by weight of a chlorine-containing thermoplastic resin and 100 parts by weight of chlorinated paraffin having an average carbon number of 20 to 50.

【0003】[0003]

【発明が解決しようとする課題】しかし、塩素含有熱可
塑性樹脂と平均炭素数12〜16の塩素化パラフィンか
らなる組成物は、作製直後の損失正接の値が1.6と小
さくて3を越えるようなことのないものであった。
However, the composition comprising a chlorine-containing thermoplastic resin and a chlorinated paraffin having an average of 12 to 16 carbon atoms has a loss tangent value of 1.6, which is as short as 1.6, immediately after preparation. There was no such thing.

【0004】本発明の課題は、上記の点に鑑み、作製直
後の損失正接の値が3を越えるような優れた制振吸収性
を示す制振材料、およびこれを得るための樹脂組成物を
提供することにある。
[0004] In view of the above, an object of the present invention is to provide a vibration damping material exhibiting excellent vibration damping and absorbing properties such that the loss tangent immediately after fabrication exceeds 3, and a resin composition for obtaining the same. To provide.

【0005】[0005]

【課題を解決するための手段】本発明は、塩素含量20
〜65重量%の塩素含有熱可塑性樹脂100重量部と、
平均炭素数10〜50で且つ塩素化量30〜65重量%
の塩素化パラフィン130〜300重量部とからなる制
振材料用樹脂組成物である。
According to the present invention, a chlorine content of 20 is provided.
100 parts by weight of a chlorine-containing thermoplastic resin of ~ 65% by weight;
Average carbon number 10-50 and chlorination amount 30-65% by weight
Of a chlorinated paraffin of 130 to 300 parts by weight.

【0006】本発明で用いられる塩素含有熱可塑性樹脂
は、塩素を20〜65重量%、好ましくは35〜50重
量%含有する熱可塑性樹脂であれば特に限定されない。
また、塩素含有熱可塑性樹脂には、塩素以外の置換基、
例えば、シアノ基、水酸基、アセチル基、メチル基、エ
チル基、臭素、フッ素等が5重量%以下の範囲で含まれ
ていてもよい。このような塩素以外の置換基の割合が5
重量%を越えると、制振性能が低下してしまう。好まし
い塩素含有熱可塑性樹脂は、貯蔵弾性率が低くくしたが
って損失正接の値が大きい非晶性のものである。
The chlorine-containing thermoplastic resin used in the present invention is not particularly limited as long as it contains 20 to 65% by weight, preferably 35 to 50% by weight of chlorine.
Further, the chlorine-containing thermoplastic resin has a substituent other than chlorine,
For example, a cyano group, a hydroxyl group, an acetyl group, a methyl group, an ethyl group, bromine, fluorine and the like may be contained in a range of 5% by weight or less. When the ratio of such substituents other than chlorine is 5
If the content exceeds the weight percentage, the vibration damping performance will be reduced. Preferred chlorine-containing thermoplastic resins are amorphous ones that have a low storage modulus and therefore a large loss tangent value.

【0007】塩素含有熱可塑性樹脂の具体例としては、
塩素化ポリエチレン、ポリ塩化ビニル、塩化ビニル−酢
酸ビニル共重合体等が挙げられる。
[0007] Specific examples of the chlorine-containing thermoplastic resin include:
Examples include chlorinated polyethylene, polyvinyl chloride, and vinyl chloride-vinyl acetate copolymer.

【0008】塩素含有熱可塑性樹脂の塩素含量が20重
量%未満であると、同樹脂の結晶が成長し易くなるた
め、貯蔵弾性率が高くなって損失正接の値が小さくな
り、制振性能が低下する。塩素含量が65重量%を越え
ると、分子間力が強くなりすぎるため、貯蔵弾性率が高
くなって損失正接の値が小さくなり、制振性能が低下す
る。
[0008] When the chlorine content of the chlorine-containing thermoplastic resin is less than 20% by weight, crystals of the resin are liable to grow, so that the storage elastic modulus is increased, the value of loss tangent is reduced, and the vibration damping performance is reduced. descend. If the chlorine content exceeds 65% by weight, the intermolecular force becomes too strong, so that the storage elastic modulus increases, the value of the loss tangent decreases, and the vibration damping performance decreases.

【0009】本発明で用いられる塩素化パラフィンとし
ては、平均炭素数が10〜50、好ましくは12〜14
であり、塩素化量が30〜65重量%、好ましくは40
〜65重量%であるものが好適である。特に、平均炭素
数が12〜14で且つ塩素化量が40〜65重量%であ
る塩素化パラフィンが最も好ましい。
The chlorinated paraffin used in the present invention has an average carbon number of 10 to 50, preferably 12 to 14 carbon atoms.
And the chlorination amount is 30 to 65% by weight, preferably 40% by weight.
Those which are about 65% by weight are preferred. Particularly, chlorinated paraffin having an average carbon number of 12 to 14 and a chlorination amount of 40 to 65% by weight is most preferable.

【0010】平均炭素数が12〜14であるのが好まし
い理由を以下に示す。組成物中の塩素化パラフィンの割
合が一定である場合、平均炭素数が少なくなるほど塩素
化パラフィンのモル量が多くなり、その結果、熱可塑性
樹脂の結晶が成長しにくくなり、制振性能(損失正接の
ピーク値)は高くなる。しかし、平均炭素数が12未満
になると塩素化パラフィンがブリードアウトし易くな
り、制振性能が低下する。従って、平均炭素数は12〜
14であるのが好ましい。
The reason why the average carbon number is preferably 12 to 14 is as follows. When the proportion of the chlorinated paraffin in the composition is constant, the molar amount of the chlorinated paraffin increases as the average carbon number decreases, and as a result, the thermoplastic resin crystal becomes difficult to grow, and the vibration damping performance (loss) Tangent peak value) becomes higher. However, when the average carbon number is less than 12, chlorinated paraffin easily bleeds out, and the vibration damping performance is reduced. Therefore, the average carbon number is 12 to
Preferably it is 14.

【0011】本発明で使用される塩素化パラフィンの割
合は、塩素含有熱可塑性樹脂100重量部に対し130
〜300重量部である。その理由は、組成物中の塩素化
パラフィンの割合が大きいほど、制振性能(損失正接の
ピーク値)は高くなるが、300重量部を越えると制振
材料の機械的強度が弱くなり形状保持が困難となってし
まうからである。塩素化パラフィンの好ましくは割合
は、取り扱い性と制振性の高さから、塩素含有熱可塑性
樹脂100重量部に対し150〜250重量部である。
The proportion of the chlorinated paraffin used in the present invention is 130 parts by weight to 100 parts by weight of the chlorine-containing thermoplastic resin.
300300 parts by weight. The reason is that the greater the proportion of chlorinated paraffins in the composition, the higher the damping performance (peak value of loss tangent), but if it exceeds 300 parts by weight, the mechanical strength of the damping material becomes weak and the shape is maintained. This becomes difficult. The preferable ratio of the chlorinated paraffin is 150 to 250 parts by weight with respect to 100 parts by weight of the chlorine-containing thermoplastic resin from the viewpoint of high handleability and vibration damping property.

【0012】本発明の制振材料は、上記本発明の樹脂組
成物を賦形することにより得られる。上記制振材料の形
状は特に限定されず、シート状、板状、棒状、ブロック
状であってもよい。本発明の樹脂組成物から制振材料を
得る賦形方法は特に限定されるものではなく、例えば押
出成形法、プレス成形法、カレンダー成形法、インフレ
ーション成形、ブロー成形、溶剤キャスト法などの一般
的な方法が適用できる。
The vibration damping material of the present invention can be obtained by shaping the above resin composition of the present invention. The shape of the vibration damping material is not particularly limited, and may be a sheet shape, a plate shape, a rod shape, or a block shape. The shaping method for obtaining the vibration damping material from the resin composition of the present invention is not particularly limited, and examples thereof include general methods such as an extrusion molding method, a press molding method, a calendar molding method, an inflation molding, a blow molding, and a solvent casting method. Methods can be applied.

【0013】[0013]

【作用】本発明による制振材料は、特定の平均炭素数と
特定の塩素化量を有する塩素化パラフィンを塩素含有熱
可塑性樹脂に特定の割合で配合してなる樹脂組成物から
得られるものであるので、作製直後の損失正接の値が3
を越えるような優れた制振吸収性を示す。
The vibration damping material according to the present invention is obtained from a resin composition obtained by blending a chlorinated paraffin having a specific average carbon number and a specific chlorination amount with a chlorine-containing thermoplastic resin in a specific ratio. The loss tangent value immediately after fabrication is 3
It shows excellent vibration damping and absorbing properties exceeding.

【0014】[0014]

【発明の実施の形態】本発明の実施例及び比較例を示
す。
DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples of the present invention and comparative examples will be described.

【0015】実施例1 塩素化ポリエチレン(昭和電工社製「エラスレン402
NA」、塩素含量40重量%)100重量部と、塩素化
パラフィン(旭電化社製「A430」、塩素含量43重
量%、平均炭素数25)250重量部をロール練り機で
混練し、得られた樹脂組成物を120℃でプレスして厚
さ1000μmのシート状制振材料を作製した。
Example 1 Chlorinated polyethylene (Eraslen 402 manufactured by Showa Denko KK)
NA ", 100 parts by weight of chlorine content, 40 parts by weight of chlorine, and 250 parts by weight of chlorinated paraffin (" A430 "manufactured by Asahi Denka Co., Ltd., 43% by weight of chlorine, average carbon number 25) are kneaded with a roll mill. The resulting resin composition was pressed at 120 ° C. to produce a sheet-shaped vibration damping material having a thickness of 1000 μm.

【0016】実施例2 塩素化ポリエチレン(昭和電工社製「エラスレン402
NA」、塩素含量40重量%)100重量部と、塩素化
パラフィン(東ソー社製「トヨパラックス265」、塩
素化量65重量%、平均炭素数=12)200重量部を
ロール練り機で混練した。それ以降は、実施例1と同様
な方法でシート状制振材料を作製した。
Example 2 Chlorinated polyethylene (Eraslen 402 manufactured by Showa Denko KK)
100 parts by weight of “NA”, chlorine content of 40% by weight) and 200 parts by weight of chlorinated paraffin (“Toyoparax 265” manufactured by Tosoh Corporation, chlorination amount 65% by weight, average carbon number = 12) were kneaded with a roll kneader. Thereafter, a sheet-shaped vibration damping material was produced in the same manner as in Example 1.

【0017】実施例3 塩素化ポリエチレン(昭和電工社製「エラスレン402
NA」、塩素含量40重量%)100重量部と、塩素化
パラフィン(旭電化社製「E500」、塩素化量50重
量%、平均炭素数=14)200重量部をロール練り機
で混練した。それ以降は、実施例1と同様な方法でシー
ト状制振材料を作製した。
Example 3 Chlorinated polyethylene (Eraslen 402 manufactured by Showa Denko KK)
NA ", 100 parts by weight of chlorine content 40% by weight) and 200 parts by weight of chlorinated paraffin (" E500 "manufactured by Asahi Denka Co., Ltd., chlorination amount 50% by weight, average carbon number = 14) were kneaded with a roll kneader. Thereafter, a sheet-shaped vibration damping material was produced in the same manner as in Example 1.

【0018】比較例1 塩素化パラフィン(旭電化社製「A430」、塩素含量
43重量%、平均炭素数25)の割合を塩素化ポリエチ
レン100重量部に対し100重量部に変えた。それ以
外は、実施例1と同様な方法でシート状制振材料を作製
した。
Comparative Example 1 The proportion of chlorinated paraffin ("A430" manufactured by Asahi Denka Co., Ltd., chlorine content 43% by weight, average carbon number 25) was changed to 100 parts by weight with respect to 100 parts by weight of chlorinated polyethylene. Otherwise, a sheet-shaped vibration damping material was produced in the same manner as in Example 1.

【0019】比較例2 塩素化パラフィンの代わりに、塩素を全く含有しない樹
脂であるパラフィン系プロセスオイル(出光興産社製
「PW−90」)100重量部を用いた。それ以外は、
実施例1と同様な方法でシート状制振材料を作製した。
Comparative Example 2 Instead of chlorinated paraffin, 100 parts by weight of a paraffinic process oil ("PW-90" manufactured by Idemitsu Kosan Co., Ltd.), which is a resin containing no chlorine, was used. Other than that,
A sheet-like vibration damping material was produced in the same manner as in Example 1.

【0020】比較例3 塩素化ポリエチレンの代わりに、塩素を全く含有しない
樹脂であるエチレン−酢酸ビニル共重合体(三井ポリケ
ミカル社製「P−1905」)100重量部を用いた。
それ以外は、実施例1と同様な方法でシート状制振材料
を作製した。
Comparative Example 3 Instead of chlorinated polyethylene, 100 parts by weight of an ethylene-vinyl acetate copolymer ("P-1905" manufactured by Mitsui Polychemicals Co., Ltd.), which is a resin containing no chlorine, was used.
Otherwise, a sheet-shaped vibration damping material was produced in the same manner as in Example 1.

【0021】制振材料の評価 実施例及び比較例で得られた制振材料の性能を下記の方
法で評価した。この結果を表1にまとめて示す。
Evaluation of Damping Material The performance of the damping materials obtained in Examples and Comparative Examples was evaluated by the following methods. The results are summarized in Table 1.

【0022】作製直後のシート状制振材料の損失正接を
粘弾性測定器(東洋精機製作所社製「レオログラフ」)
を用いて、温度−60〜60℃、周波数100Hzの条
件で測定した。尚、損失正接は常法により縦弾性係数
(E' ,E'')より算出し、得られた損失正接のピーク
値を表1に示す。
The loss tangent of the sheet-shaped vibration damping material immediately after fabrication is measured by a viscoelasticity meter (“Rheograph” manufactured by Toyo Seiki Seisaku-sho, Ltd.).
The temperature was measured at −60 to 60 ° C. and the frequency was 100 Hz. The loss tangent was calculated from the modulus of longitudinal elasticity (E ′, E ″) by a conventional method, and the resulting peak value of the loss tangent is shown in Table 1.

【0023】[0023]

【表1】 [Table 1]

【0024】[0024]

【発明の効果】本発明により、作製直後の損失正接の値
が3を越えるような優れた制振吸収性を示す制振材料を
提供することができる。
According to the present invention, it is possible to provide a vibration damping material exhibiting excellent vibration damping and absorbing properties such that the loss tangent immediately after fabrication exceeds 3.

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 FI テーマコート゛(参考) (C08L 91/08 (C08L 91/08 23:28) 23:28) ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI theme coat ゛ (Reference) (C08L 91/08 (C08L 91/08 23:28) 23:28)

Claims (5)

【特許請求の範囲】[Claims] 【請求項1】 塩素含量20〜65重量%の塩素含有熱
可塑性樹脂100重量部と、平均炭素数10〜50で且
つ塩素化量30〜65重量%の塩素化パラフィン130
〜300重量部とからなる制振材料用樹脂組成物。
1. 100 parts by weight of a chlorine-containing thermoplastic resin having a chlorine content of 20 to 65% by weight, and chlorinated paraffin 130 having an average carbon number of 10 to 50 and a chlorination amount of 30 to 65% by weight.
A resin composition for a vibration damping material, which comprises 300 parts by weight.
【請求項2】 熱可塑性樹脂の塩素含量が35〜50重
量%である請求項1記載の制振材料。
2. The vibration damping material according to claim 1, wherein the chlorine content of the thermoplastic resin is 35 to 50% by weight.
【請求項3】 塩素化パラフィンの平均炭素数が12〜
14で且つ塩素化量が40〜65重量%である請求項1
または2記載の制振材料。
3. The chlorinated paraffin having an average carbon number of 12 to
And a chlorination amount of 40 to 65% by weight.
Or the damping material according to 2.
【請求項4】 塩素化パラフィンの割合が、塩素含有熱
可塑性樹脂100重量部に対し150〜250重量部で
ある請求項1〜3のいずれかに記載の制振材料。
4. The vibration damping material according to claim 1, wherein the proportion of the chlorinated paraffin is 150 to 250 parts by weight based on 100 parts by weight of the chlorine-containing thermoplastic resin.
【請求項5】 請求項1〜4のいずれかに記載の樹脂組
成物から成形されてなる制振材料。
5. A vibration damping material formed from the resin composition according to claim 1. Description:
JP2000303716A 2000-10-03 2000-10-03 Damping material and resin composition for producing the same Expired - Lifetime JP3452545B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000303716A JP3452545B2 (en) 2000-10-03 2000-10-03 Damping material and resin composition for producing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000303716A JP3452545B2 (en) 2000-10-03 2000-10-03 Damping material and resin composition for producing the same

Publications (2)

Publication Number Publication Date
JP2002105321A true JP2002105321A (en) 2002-04-10
JP3452545B2 JP3452545B2 (en) 2003-09-29

Family

ID=18784878

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
JP (1) JP3452545B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7041377B2 (en) * 2000-04-14 2006-05-09 Sekisui Chemical Co., Ltd. Resin composition for vibration-damping material, vibration-damping material, and sound-insulating member

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7041377B2 (en) * 2000-04-14 2006-05-09 Sekisui Chemical Co., Ltd. Resin composition for vibration-damping material, vibration-damping material, and sound-insulating member

Also Published As

Publication number Publication date
JP3452545B2 (en) 2003-09-29

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