JP5997827B1 - 無機繊維断熱吸音材用水性バインダー及び無機繊維断熱吸音材 - Google Patents
無機繊維断熱吸音材用水性バインダー及び無機繊維断熱吸音材 Download PDFInfo
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- JP5997827B1 JP5997827B1 JP2015240042A JP2015240042A JP5997827B1 JP 5997827 B1 JP5997827 B1 JP 5997827B1 JP 2015240042 A JP2015240042 A JP 2015240042A JP 2015240042 A JP2015240042 A JP 2015240042A JP 5997827 B1 JP5997827 B1 JP 5997827B1
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- aqueous binder
- group
- inorganic fiber
- polycarboxylic acid
- absorbing material
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- 239000011230 binding agent Substances 0.000 title claims abstract description 127
- 239000012784 inorganic fiber Substances 0.000 title claims abstract description 84
- 239000011358 absorbing material Substances 0.000 title claims abstract description 56
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- 125000003277 amino group Chemical group 0.000 claims abstract description 46
- 125000001841 imino group Chemical group [H]N=* 0.000 claims abstract description 46
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 35
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 33
- 229920000768 polyamine Polymers 0.000 claims abstract description 33
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims abstract description 29
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- 239000000178 monomer Substances 0.000 claims description 21
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- 150000005846 sugar alcohols Chemical class 0.000 claims description 7
- 125000001931 aliphatic group Chemical group 0.000 claims description 6
- 125000004432 carbon atom Chemical group C* 0.000 claims description 4
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- MTHSVFCYNBDYFN-UHFFFAOYSA-N anhydrous diethylene glycol Natural products OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 2
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Abstract
Description
次亜リン酸ナトリウムを連鎖移動剤としてラジカル重合させたポリアクリル酸(重量平均分子量12000、酸価716mgKOH/g)を水で溶解させ、樹脂溶液(固形分46%)を得た。樹脂溶液を固形分換算で100質量部と、トリエチレンテトラミン(アミン価1450mgKOH/g)を固形分換算で0.50質量部と、エリスリトールを固形分換算で38.06質量部と、硬化促進剤である次亜リン酸ナトリウムを4.0質量部と、を混合し、25%アンモニア水でpH6.5に調整した水溶性組成物を得た。さらに、γ−アミノプロピルトリエトキシシラン0.3質量部を添加して攪拌した後、固形分が15%となるように水で希釈し、固形分40%の重質オイル水分散体を5.0質量部、硫酸アンモニウム8.0質量部を添加して、水性バインダーを得た。カルボキシ基の総モル数に対する、水酸基、アミノ基及びイミノ基の総モル数の比は0.99であり、水酸基、アミノ基及びイミノ基の総モルに対する、アミノ基及びイミノ基の総モル数の比は0.01であった。
ヘプタエチレンオクタミン(アミン価1200mgKOH/g)を固形分換算で2.27質量部、グリセロールを固形分換算で12.27質量部に変更した以外は、実施例1と同様にして水性バインダーを得た。カルボキシ基の総モル数に対する、水酸基、アミノ基及びイミノ基の総モル数の比は0.35であり、水酸基、アミノ基及びイミノ基の総モルに対する、アミノ基及びイミノ基の総モル数の比は0.10であった。
次亜リン酸ナトリウムを連鎖移動剤としてラジカル重合させたポリアクリル酸(酸価660mgKOH/g、重量平均分子量7000)を水で溶解させ、樹脂溶液(固形分50%)を得た。樹脂溶液を固形分換算で100質量部と、ヘプタエチレンオクタミン(アミン価1200mgKOH/g)を固形分換算で1.38質量部と、キシリトールを固形分換算で17.17質量部と、硬化促進剤として次亜リン酸ナトリウムを2.0質量部と、を混合し、25%アンモニア水でpH6.5に調整した水溶性組成物を得た。さらに、γ−アミノプロピルトリエトキシシラン0.3質量部を添加して攪拌した後、固形分が15%となるように水で希釈し、固形分40%の重質オイル水分散体を5.0質量部、硫酸アンモニウム8.0質量部を添加して、水性バインダーを得た。カルボキシ基の総モル数に対する、水酸基、アミノ基及びイミノ基の総モル数の比は0.50であり、水酸基、アミノ基及びイミノ基の総モルに対する、アミノ基及びイミノ基の総モル数の比は0.05であった。
トリエチレンテトラミン(アミン価1450mgKOH/g)を固形分換算で5.68質量部、ソルビトールを固形分換算で37.50質量部に変更した以外は、実施例3と同様にして水性バインダーを得た。カルボキシ基の総モル数に対する、水酸基、アミノ基及びイミノ基の総モル数の比は1.00であり、水酸基、アミノ基及びイミノ基の総モルに対する、アミノ基及びイミノ基の総モル数の比は0.125であった。
実施例1において、トリエチレンテトラミンを添加せず、エリスリトールを固形分換算で38.80質量部に変更した以外は同様にして、バインダーを得た。カルボキシ基の総モル数に対する、水酸基のモル数の比は1.00であった。
1,6−ヘキサンジアミン(アミン価966mgKOH/g)を固形分換算で0.72質量部、グリセロールを固形分換算で39.13質量部に変更した以外は、実施例1と同様にして、バインダーを得た。カルボキシ基の総モル数に対する、水酸基、アミノ基及びイミノ基の総モル数の比は1.01であり、水酸基、アミノ基及びイミノ基の総モルに対する、アミノ基及びイミノ基の総モル数の比は0.01であった。
トリエチレンテトラミンを固形分換算で0.65質量部、エリスリトールを固形分換算で49.95質量部に変更した以外は、実施例1と同様にして、バインダーを得た。カルボキシ基の総モル数に対する、水酸基、アミノ基及びイミノ基の総モル数の比は1.30であり、水酸基、アミノ基及びイミノ基の総モルに対する、アミノ基及びイミノ基の総モル数の比は0.01であった。
トリエチレンテトラミンを固形分換算で13.64質量部、エリスリトールを固形分換算で31.22質量部に変更した以外は、実施例1と同様にして、バインダーを得た。カルボキシ基の総モル数に対する、水酸基、アミノ基及びイミノ基の総モル数の比は1.08であり、水酸基、アミノ基及びイミノ基の総モルに対する、アミノ基及びイミノ基の総モル数の比は0.26であった。
遠心法により繊維化したガラス繊維に、実施例及び比較例のバインダーを所定の付着量になるようにそれぞれスプレーで塗布した後、吸引装置で吸引しながら有孔コンベア上に堆積して、無機繊維断熱吸音材の中間体を形成させた。上記中間体を260℃の熱風中で5分間加熱して、バインダーを硬化させ、密度24Kg/m3、長さ1350mm、幅430mm、厚み80mm、バインダー付着量8.0%の無機繊維断熱吸音材(グラスウールボード)を得た。得られたグラスウールボードの厚み方向に、1m/分の速度で10%圧縮荷重を測定した。結果を表1及び表2に示す。なお、比較例2のバインダーを使用したグラスウールボードでは、無機繊維断熱吸音材の中間体を形成する有孔コンベア上に、バインダーの粘着による汚れと、無機繊維の付着が多く観察された。
上記のように作製したグラスウールボードから、厚さ80mm、300mm角の試験片を切り出した。試験片を、温度105℃、圧力35kPaの高温高圧の蒸気下で1時間静置させた後の厚さの変化を測定し、初期の厚さに対する変化率を求めた。結果を表1及び表2に示す。
上記のように作製したグラスウールボードから、厚さ80mm、100mm角の試験片を切り出した。アルミニウム製で、厚さ2mmの100mm角の板の片面の中央部に長さ30mmの突起物がある剥離強度測定用治具を2枚用意し、試験片の両面に剥離強度測定用治具の突起物のない面を接着剤で張り付けた。2枚の剥離強度測定用治具を試験片の厚み方向に沿って、1m/分の速度(剥離速度)で互いに逆向きに引っ張り、試験片が破壊される時の荷重を測定し、剥離強度(Kg/m2)を求めた。結果を表1及び表2に示す。
Claims (6)
- ポリカルボン酸と該ポリカルボン酸の架橋剤とを含有する無機繊維断熱吸音材用水性バインダーであって、
前記ポリカルボン酸は、重量平均分子量1000〜20000且つ酸価500〜900mgKOH/gのポリカルボン酸を含んでおり、
前記架橋剤は、
アミノ基及びイミノ基の少なくとも一つを有し水酸基を有さない、重量平均分子量100〜500且つアミン価1150〜1650mgKOH/gのポリアミンと、
水酸基を有しアミノ基及びイミノ基を有さない、重量平均分子量90〜250且つアルコール価数3以上のポリオールと、を少なくとも含んでおり、
前記ポリカルボン酸中のカルボキシ基のモル数に対する、前記架橋剤中の水酸基、アミノ基及びイミノ基の合計モル数の比が、0.3〜1.2であり、
前記架橋剤中の水酸基、アミノ基及びイミノ基の合計モル数に対する、前記架橋剤中のアミノ基及びイミノ基の合計モル数の比が0.01〜0.2である、水性バインダー。 - 前記ポリカルボン酸は、カルボキシ基を有するエチレン性不飽和単量体をモノマー単位として有する、請求項1記載の水性バインダー。
- 前記ポリオールは、炭素数3〜8の糖アルコールである、請求項1又は2に記載の水性バインダー。
- 前記ポリアミンは、アルキレンポリアミン骨格を有する脂肪族ポリアミンである、請求項1〜3のいずれか一項に記載の水性バインダー。
- 硬化促進剤、シランカップリング剤、防塵剤、中和剤及び着色剤からなる群より選ばれる少なくとも1種を更に含有する、請求項1〜4のいずれか一項に記載の水性バインダー。
- 無機繊維と、該無機繊維を固着する請求項1〜5のいずれか一項に記載の水性バインダーの硬化物と、を備える無機繊維断熱吸音材。
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US9963384B1 (en) | 2017-05-19 | 2018-05-08 | Asahi Fiber Glass Co., Ltd. | Aqueous binder for inorganic-fiber heat-insulating sound-absorbing member, and inorganic-fiber heat-insulating sound-absorbing member |
US9963385B1 (en) | 2017-05-19 | 2018-05-08 | Asahi Fiber Glass Co., Ltd. | Aqueous binder for inorganic-fiber heat-insulating sound-absorbing member, and inorganic-fiber heat-insulating sound-absorbing member |
JP6892566B1 (ja) * | 2021-03-02 | 2021-06-23 | 旭ファイバーグラス株式会社 | 無機繊維断熱吸音材用水性バインダー及び無機繊維断熱吸音材 |
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JP6936628B2 (ja) * | 2016-06-15 | 2021-09-15 | 三洋化成工業株式会社 | 水性バインダー |
MX2020003075A (es) | 2017-10-09 | 2020-07-28 | Owens Corning Intellectual Capital Llc | Composiciones acuosas de aglutinantes. |
AU2018348020B2 (en) | 2017-10-09 | 2024-08-15 | Owens Corning Intellectual Capital, Llc | Aqueous binder compositions |
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US9963384B1 (en) | 2017-05-19 | 2018-05-08 | Asahi Fiber Glass Co., Ltd. | Aqueous binder for inorganic-fiber heat-insulating sound-absorbing member, and inorganic-fiber heat-insulating sound-absorbing member |
US9963385B1 (en) | 2017-05-19 | 2018-05-08 | Asahi Fiber Glass Co., Ltd. | Aqueous binder for inorganic-fiber heat-insulating sound-absorbing member, and inorganic-fiber heat-insulating sound-absorbing member |
JP6892566B1 (ja) * | 2021-03-02 | 2021-06-23 | 旭ファイバーグラス株式会社 | 無機繊維断熱吸音材用水性バインダー及び無機繊維断熱吸音材 |
JP2022133580A (ja) * | 2021-03-02 | 2022-09-14 | 旭ファイバーグラス株式会社 | 無機繊維断熱吸音材用水性バインダー及び無機繊維断熱吸音材 |
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