JP4262128B2 - 制振材用エマルション - Google Patents
制振材用エマルション Download PDFInfo
- Publication number
- JP4262128B2 JP4262128B2 JP2004099306A JP2004099306A JP4262128B2 JP 4262128 B2 JP4262128 B2 JP 4262128B2 JP 2004099306 A JP2004099306 A JP 2004099306A JP 2004099306 A JP2004099306 A JP 2004099306A JP 4262128 B2 JP4262128 B2 JP 4262128B2
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- JP
- Japan
- Prior art keywords
- mass
- monomer
- damping material
- vibration damping
- copolymer emulsion
- 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.)
- Expired - Lifetime
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- 238000013016 damping Methods 0.000 title claims description 142
- 239000000839 emulsion Substances 0.000 title claims description 79
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- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 9
- 125000003118 aryl group Chemical group 0.000 claims description 6
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Natural products C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 4
- 150000002148 esters Chemical group 0.000 claims description 4
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims description 3
- 125000004432 carbon atom Chemical group C* 0.000 claims description 3
- GOXQRTZXKQZDDN-UHFFFAOYSA-N 2-Ethylhexyl acrylate Chemical compound CCCCC(CC)COC(=O)C=C GOXQRTZXKQZDDN-UHFFFAOYSA-N 0.000 claims description 2
- 125000003011 styrenyl group Chemical group [H]\C(*)=C(/[H])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 claims description 2
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- 238000001035 drying Methods 0.000 description 15
- 125000000524 functional group Chemical group 0.000 description 15
- 238000000034 method Methods 0.000 description 15
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- 238000012360 testing method Methods 0.000 description 6
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- YAJYJWXEWKRTPO-UHFFFAOYSA-N 2,3,3,4,4,5-hexamethylhexane-2-thiol Chemical compound CC(C)C(C)(C)C(C)(C)C(C)(C)S YAJYJWXEWKRTPO-UHFFFAOYSA-N 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 2
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- XXROGKLTLUQVRX-UHFFFAOYSA-N allyl alcohol Chemical compound OCC=C XXROGKLTLUQVRX-UHFFFAOYSA-N 0.000 description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 description 2
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 2
- RDOXTESZEPMUJZ-UHFFFAOYSA-N anisole Chemical compound COC1=CC=CC=C1 RDOXTESZEPMUJZ-UHFFFAOYSA-N 0.000 description 2
- 239000012736 aqueous medium Substances 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
- 239000010960 cold rolled steel Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
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- 229960002887 deanol Drugs 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
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- 239000012972 dimethylethanolamine Substances 0.000 description 2
- WNAHIZMDSQCWRP-UHFFFAOYSA-N dodecane-1-thiol Chemical compound CCCCCCCCCCCCS WNAHIZMDSQCWRP-UHFFFAOYSA-N 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
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- 125000003055 glycidyl group Chemical group C(C1CO1)* 0.000 description 2
- ORTRWBYBJVGVQC-UHFFFAOYSA-N hexadecane-1-thiol Chemical compound CCCCCCCCCCCCCCCCS ORTRWBYBJVGVQC-UHFFFAOYSA-N 0.000 description 2
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- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 239000012046 mixed solvent Substances 0.000 description 2
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- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 2
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- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 2
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Description
(a)エチレン性不飽和カルボン酸0.1〜10質量%、
(b)メチルメタクリレート25〜90質量%、および
(c)その他の共重合可能なエチレン性不飽和単量体5〜74.9質量%(ただし、前記各単量体の合計は100質量%である)であり、かつ該共重合可能なエチレン性不飽和単量体(c)は、エステル残基の炭素数が4〜8のアクリル系単量体を必須成分として20質量%以上含有することを特徴とする制振材用共重合エマルション。
(4) 前記単量体混合物は、
(a)エチレン性不飽和カルボン酸0.5〜10質量%、
(b)メチルメタクリレート25〜80質量%、および
(c)その他の共重合可能なエチレン性不飽和単量体20〜70質量%(ただし、前記各単量体の合計は100質量%である)である前記(1)〜(3)のいずれか一つに記載の制振材用共重合エマルション。
(5) 前記エチレン性不飽和カルボン酸(a)がアクリル酸である前記(1)〜(4)のいずれか一つに記載の制振材用共重合エマルション。
(6) 前記芳香族不飽和単量体がスチレンである前記(3)〜(5)のいずれか一つに記載の制振材用共重合体エマルション。
(a)エチレン性不飽和カルボン酸0.1〜10質量%、
(b)メチルメタクリレート25〜90質量%、および
(c)その他の共重合可能なエチレン性不飽和単量体5〜74.9質量%(ただし、前記各単量体の合計は100質量%である)であり、かつ該共重合可能なエチレン性不飽和単量体(c)は、エステル残基の炭素数が4〜8のアクリル系単量体を必須成分として20質量%以上含有することを特徴とする制振材用共重合エマルションである。
制振材用共重合エマルション100質量部、炭酸カルシウム:NN♯200(商品名、日東粉化工業株式会社製)250質量部、分散剤:デモールEP(商品名、花王株式会社製)1質量部、増粘剤:アクリセットAT−2(商品名、株式会社日本触媒製)2質量部、消泡剤:ノプコ8034L(商品名、サンノプコ株式会社製)0.3質量部。
上記制振材配合物をカチオン電着塗装鋼板(15幅×250長さ×厚み1.5mm)上で、3mm厚の型枠中に流し込み、150℃×30分乾燥し、試験片とした。この試験片について小野測器社製の損失係数測定システム・片持ち梁法を用いて各温度の測定環境の損失係数を測定する。
実施例1
撹拌機、還流冷却管、温度計、窒素導入管およ滴下ロートを取り付けた重合器に脱イオン水210.4部を仕込んだ。その後、窒素ガス気流下で撹拌しながら内温を70℃まで昇温した。一方、上記滴下ロートにメチルメタアクリレート236部、ブチルアクリレート251部、アクリル酸5.0部、予め20%水溶液に調整したハイテノールN−08(商品名、ポリオキシエチレンアルキルエーテルの硫酸エステル塩:第一工業製薬株式会社製)37.5部および脱イオン水57.5部からなる単量体乳化物を仕込んだ。次に、重合器の内温を70℃に維持しながら上記単量体乳化物を2時間かけて均一に滴下し、さらに、同時に5%過硫酸カリウム水溶液54部および2%亜硫酸水素ナトリウム水溶液40部を2時間かけて均一に滴下することにより、エマルションを形成した。滴下終了後、75℃で1時間熟成を続け、各単量体を完全に消費させた。その後、冷却して25%のアンモニア水を5.1部添加し、100メッシュのステンレス金網でろ過を行い、取り出した。これにより、水性樹脂を得た。得られた水性樹脂の不揮発分は、表2に示すように、55.2%、pHは8.8、粘度は500mPa・sであった。上記単量体組成物の組成を表1にまとめた。
実施例1における水性樹脂の組成を、表1に示す組成にした以外は、実施例1と同様にして制振材用エマルションを得た。その物性は、表2のとおりであった。
実施例1〜4および比較例1〜5で得られたアクリル系樹脂エマルションを下記のとおり配合し、制振性水性塗料組成物として制振性を確認した。
・炭酸カルシウム NN#200*1 250部
・分散剤デモールEP*2 1部
・増粘剤アクリセットAT−2*3 2部
・消泡剤 ノプコ8034L*4 0.3部
*1:日東粉化工業株式会社製 充填剤
*2:花王株式会社製 特殊ポリカルボン酸型高分子界面活性剤
*3:株式会社日本触媒製 アルカリ可溶性のアクリル系増粘剤
*4:サンノプコ株式会社製 消泡剤(主成分:疎水性シリコーン+鉱物油)
Claims (3)
- アクリル系単量体を必須とする単量体混合物を共重合してなる制振材用共重合エマルションであって、該単量体混合物は、
(a)エチレン性不飽和カルボン酸0.1〜10質量%、
(b)メチルメタクリレート25〜90質量%、および
(c)その他の共重合可能なエチレン性不飽和単量体および芳香族不飽和単量体5〜74.9質量%(ただし、前記各単量体の合計は100質量%である)であり、かつ該共重合可能なエチレン性不飽和単量体(c)は、エステル残基の炭素数が4〜8のアクリル系単量体を必須成分として20質量%以上含有するともに、さらに芳香族不飽和単量体を含有することを特徴とする制振材用共重合エマルション。 - 前記芳香族不飽和単量体以外の前記共重合可能なエチレン性不飽和単量体(c)がブチルアクリレートおよび/または2−エチルヘキシルアクリレートを必須成分とすることを特徴とする請求項1に記載の制振材用共重合エマルション。
- 前記芳香族不飽和単量体がスチレンである請求項1または2に記載の制振材用共重合体エマルション。
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JP2008133394A (ja) * | 2006-11-29 | 2008-06-12 | Dic Corp | 発泡性制振材用水性塗料及び制振材 |
EP2650315A1 (en) | 2007-03-30 | 2013-10-16 | Nippon Shokubai Co., Ltd. | Emulsion for damping member |
JP2010106168A (ja) * | 2008-10-30 | 2010-05-13 | Nippon Shokubai Co Ltd | 制振材用エマルション及び制振材配合物 |
JP5420939B2 (ja) * | 2009-03-13 | 2014-02-19 | 株式会社日本触媒 | エマルション樹脂組成物及びそれを用いた制振材配合物 |
JP6247347B2 (ja) * | 2016-06-27 | 2017-12-13 | 株式会社日本触媒 | 制振材用エマルション及び制振材配合物 |
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