JP7074434B2 - ポンプ移送可能な熱発泡性充填組成物 - Google Patents
ポンプ移送可能な熱発泡性充填組成物 Download PDFInfo
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- JP7074434B2 JP7074434B2 JP2017152416A JP2017152416A JP7074434B2 JP 7074434 B2 JP7074434 B2 JP 7074434B2 JP 2017152416 A JP2017152416 A JP 2017152416A JP 2017152416 A JP2017152416 A JP 2017152416A JP 7074434 B2 JP7074434 B2 JP 7074434B2
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Description
- 上述したポンプ移送可能な熱発泡性充填組成物を閉空間の中に施工する工程、及び
- 発泡剤の活性化温度より高い温度までポンプ移送可能な熱発泡性充填組成物が入った閉空間を加熱して充填材を発泡させる工程、
を含む閉空間の充填方法に関する。
半径8mm×長さ100mmの寸法を有する、試験すべき半円状の材料を、100×150×0.8mmの寸法を有する試験金属基材(溶融亜鉛めっき鋼材)の上に付着させた。もう1枚の同じサイズの金属を材料に付着させて15mmの間隔を有するサンドイッチを形成した。引き続きサンドイッチ状の組立体をクリップで留める。その後作製した組立体を指定の焼成条件で焼成する。24時間後、試験組立体を引き剥がし、材料の接着不良の割合を検査して接着性を評価する。凝集破壊(CF)は接着剤のバルク層の破壊を示す一方で、接着破壊は接着剤と被着体との界面、又は接着される材料で生じる。
膨張率は、おおよそ半径5mm長さ50mmの試験材料のビーズの膨張前後の密度を測定することによって各試料について数値化する。密度は、脱イオン水中での水浸漬法(アルキメデスの原理)及び質量を測定するための精密天秤を使用して、DIN EN ISO 1183に従って決定した。試験材料は、180℃で15分、155℃で15分、及び200℃で30分それぞれ膨張させた。
本発明の態様として、以下の態様を挙げることができる:
《態様1》
以下を含有する、ポンプ移送可能な熱発泡性充填組成物:
- 液体エポキシ樹脂、
- ポリ塩化ビニル樹脂及び/又はアクリル樹脂粉末、並びに
- 発泡剤。
《態様2》
合成ゴム、好ましくは部分的に架橋した合成ゴム、より好ましくは部分的に架橋したスチレン-ブタジエン-ゴムを更に含有する、態様1に記載のポンプ移送可能な熱発泡性充填組成物。
《態様3》
1種以上の可塑剤を更に含有する、態様1又は2に記載のポンプ移送可能な熱発泡性充填組成物。
《態様4》
前記液体エポキシ樹脂用の硬化剤を更に含有する、態様1~3のいずれか一項に記載のポンプ移送可能な熱発泡性充填組成物。
《態様5》
1種以上の充填材を更に含有する、態様1~4のいずれか一項に記載のポンプ移送可能な熱発泡性充填組成物。
《態様6》
10~20重量%の液体エポキシ樹脂と、10~20重量%のポリ塩化ビニル樹脂及び/又はアクリル樹脂粉末と、5~10重量%の合成ゴムと、3~6重量%の発泡剤と、10~20重量%の可塑剤と、1重量%未満の液体エポキシ樹脂用の硬化剤と、25~35重量%の充填材とを含有する、態様1~5のいずれか一項に記載のポンプ移送可能な熱発泡性充填組成物。
《態様7》
態様1~6のいずれか一項に記載のポンプ移送可能な熱発泡性充填組成物を、前記発泡剤の活性化温度より高い温度まで加熱することによって得ることができる、発泡した充填材。
《態様8》
その未発泡体積の300%超、好ましくは500%~900%の膨張率を有する、態様7に記載の充填材。
《態様9》
態様1~6のいずれか一項に記載のポンプ移送可能な熱発泡性充填組成物の、閉空間用の充填材としての、特には車両部品中の閉空間用の充填材としての、使用。
《態様10》
以下を含む閉空間の充填方法:
- 態様1~6のいずれか一項に記載のポンプ移送可能な熱発泡性充填組成物を閉空間に挿入する工程、及び
- 前記発泡剤の活性化温度より高い温度まで、前記ポンプ移送可能な熱発泡性充填組成物が入った前記閉空間を加熱して、前記充填材を発泡させる工程。
《態様11》
前記閉空間が車両部品中の閉空間である、態様10に記載の方法。
《態様12》
態様10又は11に記載の方法によって得られる車両部品。
Claims (10)
- 以下を含有する、ポンプ移送可能な熱発泡性充填組成物:
- 液体エポキシ樹脂、
- ポリ塩化ビニル樹脂及び/又はアクリル樹脂粉末、
- 発泡剤、
- 合成ゴム、並びに
- 1種以上の可塑剤、
ここで、前記組成物は、前記組成物の総重量に対して、10~20重量%の液体エポキシ樹脂と、1~20重量%の合成ゴムと、8~30重量%の可塑剤とを含有する。 - 前記液体エポキシ樹脂用の硬化剤を更に含有する、請求項1に記載のポンプ移送可能な熱発泡性充填組成物。
- 1種以上の充填材を更に含有する、請求項1又は2に記載のポンプ移送可能な熱発泡性充填組成物。
- 10~20重量%の液体エポキシ樹脂と、10~20重量%のポリ塩化ビニル樹脂及び/又はアクリル樹脂粉末と、5~10重量%の合成ゴムと、3~6重量%の発泡剤と、10~20重量%の可塑剤と、1重量%未満の液体エポキシ樹脂用の硬化剤と、25~35重量%の充填材とを含有する、請求項1~3のいずれか一項に記載の熱発泡性充填組成物。
- 請求項1~4のいずれか一項に記載のポンプ移送可能な熱発泡性充填組成物を、前記発泡剤の活性化温度より高い温度まで加熱することによって得ることができる、発泡した充填組成物。
- その未発泡体積の300%超の膨張率を有する、請求項5に記載の発泡した充填組成物。
- 請求項1~4のいずれか一項に記載のポンプ移送可能な熱発泡性充填組成物の、閉空間用の充填材料としての使用。
- 以下を含む閉空間の充填方法:
- 請求項1~4のいずれか一項に記載のポンプ移送可能な熱発泡性充填組成物を閉空間に挿入する工程、及び
- 前記発泡剤の活性化温度より高い温度まで、前記ポンプ移送可能な熱発泡性充填組成物が入った前記閉空間を加熱して、前記組成物を発泡させる工程。 - 前記閉空間が車両部品中の閉空間である、請求項8に記載の方法。
- 請求項8又は9に記載の方法を含む、車両部品の製造方法。
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