JP2014095036A - 制振性材料 - Google Patents
制振性材料 Download PDFInfo
- Publication number
- JP2014095036A JP2014095036A JP2012247481A JP2012247481A JP2014095036A JP 2014095036 A JP2014095036 A JP 2014095036A JP 2012247481 A JP2012247481 A JP 2012247481A JP 2012247481 A JP2012247481 A JP 2012247481A JP 2014095036 A JP2014095036 A JP 2014095036A
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- Prior art keywords
- weight
- parts
- damping material
- carbon black
- vibration damping
- Prior art date
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- Granted
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- 238000013016 damping Methods 0.000 title claims abstract description 66
- 239000000463 material Substances 0.000 title claims abstract description 58
- 239000011347 resin Substances 0.000 claims abstract description 58
- 229920005989 resin Polymers 0.000 claims abstract description 58
- 239000006229 carbon black Substances 0.000 claims abstract description 38
- -1 acryl Chemical group 0.000 claims abstract description 32
- 238000004132 cross linking Methods 0.000 claims abstract description 24
- 239000004014 plasticizer Substances 0.000 claims abstract description 22
- 150000001451 organic peroxides Chemical class 0.000 claims abstract description 15
- 239000000178 monomer Substances 0.000 claims abstract description 14
- 239000004593 Epoxy Substances 0.000 claims abstract description 11
- 239000000203 mixture Substances 0.000 claims abstract description 10
- 125000005250 alkyl acrylate group Chemical group 0.000 claims abstract description 7
- 229920000642 polymer Polymers 0.000 claims abstract description 7
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- 229920000800 acrylic rubber Polymers 0.000 claims description 15
- 229920000728 polyester Polymers 0.000 claims description 8
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 abstract description 16
- 241000872198 Serjania polyphylla Species 0.000 abstract description 3
- 125000004183 alkoxy alkyl group Chemical group 0.000 abstract 1
- 235000019241 carbon black Nutrition 0.000 description 34
- 238000012360 testing method Methods 0.000 description 17
- 125000004432 carbon atom Chemical group C* 0.000 description 12
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- 238000013329 compounding Methods 0.000 description 10
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- PYGXAGIECVVIOZ-UHFFFAOYSA-N Dibutyl decanedioate Chemical compound CCCCOC(=O)CCCCCCCCC(=O)OCCCC PYGXAGIECVVIOZ-UHFFFAOYSA-N 0.000 description 2
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- 125000001931 aliphatic group Chemical group 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 125000002947 alkylene group Chemical group 0.000 description 2
- 239000012964 benzotriazole Substances 0.000 description 2
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 2
- ZFMQKOWCDKKBIF-UHFFFAOYSA-N bis(3,5-difluorophenyl)phosphane Chemical compound FC1=CC(F)=CC(PC=2C=C(F)C=C(F)C=2)=C1 ZFMQKOWCDKKBIF-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- MIMDHDXOBDPUQW-UHFFFAOYSA-N dioctyl decanedioate Chemical compound CCCCCCCCOC(=O)CCCCCCCCC(=O)OCCCCCCCC MIMDHDXOBDPUQW-UHFFFAOYSA-N 0.000 description 2
- 238000002845 discoloration Methods 0.000 description 2
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 2
- 238000010556 emulsion polymerization method Methods 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- LVQPBIMCRZQQBC-UHFFFAOYSA-N methoxymethyl 2-methylprop-2-enoate Chemical compound COCOC(=O)C(C)=C LVQPBIMCRZQQBC-UHFFFAOYSA-N 0.000 description 2
- SINFYWWJOCXYFD-UHFFFAOYSA-N methoxymethyl prop-2-enoate Chemical compound COCOC(=O)C=C SINFYWWJOCXYFD-UHFFFAOYSA-N 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
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- MYOQALXKVOJACM-UHFFFAOYSA-N (2-methylpropan-2-yl)oxy pentaneperoxoate Chemical compound CCCCC(=O)OOOC(C)(C)C MYOQALXKVOJACM-UHFFFAOYSA-N 0.000 description 1
- NALFRYPTRXKZPN-UHFFFAOYSA-N 1,1-bis(tert-butylperoxy)-3,3,5-trimethylcyclohexane Chemical compound CC1CC(C)(C)CC(OOC(C)(C)C)(OOC(C)(C)C)C1 NALFRYPTRXKZPN-UHFFFAOYSA-N 0.000 description 1
- KOMNUTZXSVSERR-UHFFFAOYSA-N 1,3,5-tris(prop-2-enyl)-1,3,5-triazinane-2,4,6-trione Chemical compound C=CCN1C(=O)N(CC=C)C(=O)N(CC=C)C1=O KOMNUTZXSVSERR-UHFFFAOYSA-N 0.000 description 1
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- BJELTSYBAHKXRW-UHFFFAOYSA-N 2,4,6-triallyloxy-1,3,5-triazine Chemical compound C=CCOC1=NC(OCC=C)=NC(OCC=C)=N1 BJELTSYBAHKXRW-UHFFFAOYSA-N 0.000 description 1
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- 125000003055 glycidyl group Chemical group C(C1CO1)* 0.000 description 1
- MDNFYIAABKQDML-UHFFFAOYSA-N heptyl 2-methylprop-2-enoate Chemical compound CCCCCCCOC(=O)C(C)=C MDNFYIAABKQDML-UHFFFAOYSA-N 0.000 description 1
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- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
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- NZIDBRBFGPQCRY-UHFFFAOYSA-N octyl 2-methylprop-2-enoate Chemical compound CCCCCCCCOC(=O)C(C)=C NZIDBRBFGPQCRY-UHFFFAOYSA-N 0.000 description 1
- 229940065472 octyl acrylate Drugs 0.000 description 1
- ANISOHQJBAQUQP-UHFFFAOYSA-N octyl prop-2-enoate Chemical compound CCCCCCCCOC(=O)C=C ANISOHQJBAQUQP-UHFFFAOYSA-N 0.000 description 1
- JFHBKKGEVRVZPE-UHFFFAOYSA-N oxiran-2-ylmethyl 4-ethenylbenzoate Chemical compound C1=CC(C=C)=CC=C1C(=O)OCC1OC1 JFHBKKGEVRVZPE-UHFFFAOYSA-N 0.000 description 1
- 239000002540 palm oil Substances 0.000 description 1
- 239000000312 peanut oil Substances 0.000 description 1
- GYDSPAVLTMAXHT-UHFFFAOYSA-N pentyl 2-methylprop-2-enoate Chemical compound CCCCCOC(=O)C(C)=C GYDSPAVLTMAXHT-UHFFFAOYSA-N 0.000 description 1
- ULDDEWDFUNBUCM-UHFFFAOYSA-N pentyl prop-2-enoate Chemical compound CCCCCOC(=O)C=C ULDDEWDFUNBUCM-UHFFFAOYSA-N 0.000 description 1
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
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- 239000010665 pine oil Substances 0.000 description 1
- 239000001794 pinus palustris tar oil Substances 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- BOQSSGDQNWEFSX-UHFFFAOYSA-N propan-2-yl 2-methylprop-2-enoate Chemical compound CC(C)OC(=O)C(C)=C BOQSSGDQNWEFSX-UHFFFAOYSA-N 0.000 description 1
- LYBIZMNPXTXVMV-UHFFFAOYSA-N propan-2-yl prop-2-enoate Chemical compound CC(C)OC(=O)C=C LYBIZMNPXTXVMV-UHFFFAOYSA-N 0.000 description 1
- NHARPDSAXCBDDR-UHFFFAOYSA-N propyl 2-methylprop-2-enoate Chemical compound CCCOC(=O)C(C)=C NHARPDSAXCBDDR-UHFFFAOYSA-N 0.000 description 1
- PNXMTCDJUBJHQJ-UHFFFAOYSA-N propyl prop-2-enoate Chemical compound CCCOC(=O)C=C PNXMTCDJUBJHQJ-UHFFFAOYSA-N 0.000 description 1
- GRWFGVWFFZKLTI-UHFFFAOYSA-N rac-alpha-Pinene Natural products CC1=CCC2C(C)(C)C1C2 GRWFGVWFFZKLTI-UHFFFAOYSA-N 0.000 description 1
- 239000007870 radical polymerization initiator Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- WBHHMMIMDMUBKC-XLNAKTSKSA-N ricinelaidic acid Chemical compound CCCCCC[C@@H](O)C\C=C\CCCCCCCC(O)=O WBHHMMIMDMUBKC-XLNAKTSKSA-N 0.000 description 1
- 229960003656 ricinoleic acid Drugs 0.000 description 1
- FEUQNCSVHBHROZ-UHFFFAOYSA-N ricinoleic acid Natural products CCCCCCC(O[Si](C)(C)C)CC=CCCCCCCCC(=O)OC FEUQNCSVHBHROZ-UHFFFAOYSA-N 0.000 description 1
- 238000010058 rubber compounding Methods 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 238000001256 steam distillation Methods 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 150000003440 styrenes Chemical class 0.000 description 1
- 238000010558 suspension polymerization method Methods 0.000 description 1
- 125000002889 tridecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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- 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
- C08L33/14—Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur, or oxygen atoms in addition to the carboxy oxygen
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- 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
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/14—Peroxides
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- 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
- C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
- C08L33/062—Copolymers with monomers not covered by C08L33/06
- C08L33/068—Copolymers with monomers not covered by C08L33/06 containing glycidyl groups
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- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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Abstract
【解決手段】本発明の制振性材料は、アルキルアクリレート、アルコキシアルキルアクリレート、アルキルメタクリレート、及びアルコキシアルキルメタクリレートの中から選ばれる少なくとも一種の単量体と、エポキシ系の架橋点となる単量体との重合体であるアクリルゴム100重量部に対し、外比で、前記エポキシ系の架橋点間を架橋可能な有機過酸化物0.01〜15重量部、粘着付与樹脂1〜100重量部、可塑剤1〜20重量部、平均粒子径22〜45nmのカーボンブラック25〜50重量部、及び平均粒子径70〜85nmのカーボンブラック15〜35重量部が配合されて、前記アクリルゴムの前記架橋点間が前記有機過酸化物で架橋されてなる組成物を主成分として含むものである。
【選択図】なし
Description
本発明の制振性材料は、アルキルアクリレート、アルコキシアルキルアクリレート、アルキルメタクリレート、及びアルコキシアルキルメタクリレートの中から選ばれる少なくとも一種の単量体と、エポキシ系の架橋点となる単量体との重合体であるアクリルゴム100重量部に対し、外比で、前記エポキシ系の架橋点間を架橋可能な有機過酸化物0.01〜15重量部、粘着付与樹脂1〜100重量部、可塑剤1〜20重量部、平均粒子径22〜45nmのカーボンブラック25〜50重量部、及び平均粒子径70〜85nmのカーボンブラック15〜35重量部が配合されて、前記アクリルゴムの前記架橋点間が前記有機過酸化物で架橋されてなる組成物を主成分として含む材料である。
これら粘着付与樹脂(ロジン樹脂、テルペン樹脂、石油樹脂、石炭樹脂、フェノール樹脂、及びキシレン樹脂)も、いずれか一種を単独で用いてもよいし、二種以上をブレンドして用いてもよい。
〔1〕第一実施形態
[制振性材料の製造例]
アクリルゴム(アルコキシアルキルアクリレート/グリシジルアクリレート重合体)100重量部と、芳香族系石油樹脂(C8〜C10芳香族系炭化水素留分重合物)20重量部と、ポリエステル系可塑剤(アジピン酸系ポリエステル)5重量部と、平均粒子径45nmのカーボンブラック38重量部と、平均粒子径78nmのカーボンブラック25重量部と、その他の成分(少量の酸化防止剤、滑剤、離型剤、老化防止剤等)を加圧ニーダーに仕込み、110℃で5分間混練した。
[硬さ試験]
上記製造例で製造したゴムシートについて、タイプAデュロメータを使用して、JIS K 6253で規定される試験方法に従って硬さ試験を実施した。測定に当たっては、厚み3mmのゴムシートを2枚積層し、ゴムシートの端から12mm以上離れた平滑な表面から測定点を選定した。測定点の数は5点、測定時間は瞬間値とし、押針の接触点が6mm以上離れた位置で5回の測定を行って、その中央値を硬さとした。以上のような測定の結果、上記ゴムシートの硬さはA53±5であった。
上記製造例で製造したゴムシートについて、リュプケ式反発弾性試験機を使用して、JIS K 6255で規定される試験方法に従って反発弾性率を測定した。測定に当たっては、直径29mm×厚さ12.5mmの試験片を用意し、3回の試験結果の中央値を反発高さとし、計算によって反発弾性率を算出した。なお、上記試験規格の標準的な規定としては、試験片保持力を200N±20Nに設定する旨が規定されているが、本発明の制振性材料は変形しやすく、上記保持力では試験片が変形するため、試験片保持力を29N〜39Nに設定した。以上のような測定の結果、反発弾性率は7%であった。
比較のため、上記製造例において、カーボンブラックを平均粒子径78nmのものだけに変更して、その他は全く同条件でゴムシートを試作し、上記同様の硬さ試験及び反発弾性率試験を実施した。測定の結果、硬さはA32程度、反発弾性率は7%であった。
上記第一実施形態では、平均粒子径45nmのカーボンブラック38重量部を配合していたが、その平均粒子径及び配合量について、いずれか一方又は両方を下記表1のように変更した。なお、平均粒子径78nmのカーボンブラック25重量部を配合する点については変更せず、その他の条件も全く同条件としてゴムシートを試作し、上記同様の硬さ試験及び反発弾性率試験を実施した。下記表1に測定の結果を併記する。
上記第二実施形態で例示した平均粒子径が22nm,28nm,45nmのカーボンブラックが配合された事例を対象にして、併せて配合されていた平均粒子径78nmのカーボンブラック25重量部について、その平均粒子径を78nmから70nmに変更して、その配合比を15重量部、25重量部、35重量部としたものを試作した。(その他の条件は変更無し。)。また、同様に、平均粒子径を78nmから85nmに変更して、その配合比を15重量部、25重量部、35重量部としたものを試作した。(その他の条件は変更無し。)。
以上、本発明の実施形態について説明したが、本発明は上記の具体的な一実施形態に限定されず、この他にも種々の形態で実施することができる。
Claims (4)
- アルキルアクリレート、アルコキシアルキルアクリレート、アルキルメタクリレート、及びアルコキシアルキルメタクリレートの中から選ばれる少なくとも一種の単量体と、エポキシ系の架橋点となる単量体との重合体であるアクリルゴム100重量部に対し、外比で、前記エポキシ系の架橋点間を架橋可能な有機過酸化物0.01〜15重量部、粘着付与樹脂1〜100重量部、可塑剤1〜20重量部、平均粒子径22〜45nmのカーボンブラック25〜50重量部、及び平均粒子径70〜85nmのカーボンブラック15〜35重量部が配合されて、前記アクリルゴムの前記架橋点間が前記有機過酸化物で架橋されてなる組成物
を主成分として含む制振性材料。 - 前記有機過酸化物は、α,α−ビス(t−ブチルパーオキシイソプロピル)ベンゼンである
請求項1に記載の制振性材料。 - 前記粘着付与樹脂は、C8〜C10芳香族系炭化水素留分重合物である
請求項1又は請求項2に記載の制振性材料。 - 前記可塑剤は、ポリエステル系可塑剤である
請求項1〜請求項3のいずれか一項に記載の制振性材料。
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US14/441,269 US9273205B2 (en) | 2012-11-09 | 2013-10-11 | Vibration damping material |
EP13852797.3A EP2918651B1 (en) | 2012-11-09 | 2013-10-11 | Vibration damping material |
PCT/JP2013/077797 WO2014073327A1 (ja) | 2012-11-09 | 2013-10-11 | 制振性材料 |
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JP2005187772A (ja) * | 2003-12-26 | 2005-07-14 | Kitagawa Ind Co Ltd | 制振性材料 |
JP2008120928A (ja) * | 2006-11-13 | 2008-05-29 | Kitagawa Ind Co Ltd | 制振性材料及び制振具 |
JP4503579B2 (ja) * | 2006-11-17 | 2010-07-14 | 北川工業株式会社 | 制振性材料 |
JP2011006509A (ja) * | 2009-06-23 | 2011-01-13 | Denki Kagaku Kogyo Kk | アクリルゴム組成物 |
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EP2918651A1 (en) | 2015-09-16 |
WO2014073327A1 (ja) | 2014-05-15 |
US9273205B2 (en) | 2016-03-01 |
EP2918651B1 (en) | 2017-08-30 |
JP6060453B2 (ja) | 2017-01-18 |
US20150299452A1 (en) | 2015-10-22 |
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