JP6460298B1 - 多孔体の製造方法 - Google Patents
多孔体の製造方法 Download PDFInfo
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- JP6460298B1 JP6460298B1 JP2018557954A JP2018557954A JP6460298B1 JP 6460298 B1 JP6460298 B1 JP 6460298B1 JP 2018557954 A JP2018557954 A JP 2018557954A JP 2018557954 A JP2018557954 A JP 2018557954A JP 6460298 B1 JP6460298 B1 JP 6460298B1
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- urethane resin
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Abstract
Description
攪拌機、還流器、温度計を有する反応装置に、ポリエステルポリオール(DIC株式会社製「CMA−244」、数平均分子量;2,000)を100質量部、エチレングリコールを8質量部、N,N,2−トリメチルプロピオンアミドを250質量部、及び、4,4’−ジフェニルメタンジイソシアネートを45質量部投入し、撹拌下85℃で粘度が600dPa・sに達するまで反応させた後、メタノール0.22質量部を加えて反応させることによってウレタン樹脂(A−1)を含有するウレタン樹脂組成物を得た。
攪拌機、還流器、温度計を有する反応装置に、ポリエステルポリオール(DIC株式会社製「CMA−244」、数平均分子量;2,000)を100質量部、エチレングリコールを8質量部、N,N−ジメチルアクリルアミドを250質量部、及び、4,4’−ジフェニルメタンジイソシアネートを45質量部投入し、撹拌下85℃で粘度が600dPa・sに達するまで反応させた後、メタノール0.22質量部を加えて反応させることによってウレタン樹脂(A−2)を含有するウレタン樹脂組成物を得た。
攪拌機、還流器、温度計を有する反応装置に、ポリテトラメチレングリコール(数平均分子量;2,000)を100質量部、エチレングリコールを8質量部、N,N,2−トリメチルプロピオンアミドを250質量部、及び、4,4’−ジフェニルメタンジイソシアネートを45質量部投入し、撹拌下85℃で粘度が600dPa・sに達するまで反応させた後、メタノール0.22質量部を加えて反応させることによってウレタン樹脂(A−3)を含有するウレタン樹脂組成物を得た。
攪拌機、還流器、温度計を有する反応装置に、ポリテトラメチレングリコール(数平均分子量;2,000)を100質量部、エチレングリコールを8質量部、N,N−ジメチルアクリルアミドを250質量部、及び、4,4’−ジフェニルメタンジイソシアネートを45質量部投入し、撹拌下85℃で粘度が600dPa・sに達するまで反応させた後、メタノール0.22質量部を加えて反応させることによってウレタン樹脂(A−4)を含有するウレタン樹脂組成物を得た。
合成例で用いたポリオールの数平均分子量は、ゲル・パーミエーション・クロマトグラフィー(GPC)法により、下記の条件で測定した値を示す。
カラム:東ソー株式会社製の下記のカラムを直列に接続して使用した。
「TSKgel G5000」(7.8mmI.D.×30cm)×1本
「TSKgel G4000」(7.8mmI.D.×30cm)×1本
「TSKgel G3000」(7.8mmI.D.×30cm)×1本
「TSKgel G2000」(7.8mmI.D.×30cm)×1本
検出器:RI(示差屈折計)
カラム温度:40℃
溶離液:テトラヒドロフラン(THF)
流速:1.0mL/分
注入量:100μL(試料濃度0.4質量%のテトラヒドロフラン溶液)
標準試料:下記の標準ポリスチレンを用いて検量線を作成した。
東ソー株式会社製「TSKgel 標準ポリスチレン A−500」
東ソー株式会社製「TSKgel 標準ポリスチレン A−1000」
東ソー株式会社製「TSKgel 標準ポリスチレン A−2500」
東ソー株式会社製「TSKgel 標準ポリスチレン A−5000」
東ソー株式会社製「TSKgel 標準ポリスチレン F−1」
東ソー株式会社製「TSKgel 標準ポリスチレン F−2」
東ソー株式会社製「TSKgel 標準ポリスチレン F−4」
東ソー株式会社製「TSKgel 標準ポリスチレン F−10」
東ソー株式会社製「TSKgel 標準ポリスチレン F−20」
東ソー株式会社製「TSKgel 標準ポリスチレン F−40」
東ソー株式会社製「TSKgel 標準ポリスチレン F−80」
東ソー株式会社製「TSKgel 標準ポリスチレン F−128」
東ソー株式会社製「TSKgel 標準ポリスチレン F−288」
東ソー株式会社製「TSKgel 標準ポリスチレン F−550」
合成例1で得られたウレタン樹脂組成物100質量部を、N,N,2−トリメチルプロピオンアミド30質量部で更に希釈し、厚さ(Wet)1mmとなるようにポリエチレンテレフタレート(PET)フィルムに塗布した。次いで、凝固浴(25℃の水)へ塗布基材を10分間浸漬させ、ウレタン樹脂(A−1)を凝固させた。その後、この基材を50℃の水に60分間浸漬させて溶剤を洗浄した。洗浄後、基材を120℃で30分間熱風乾燥させ、多孔体を得た。
合成例2で得られたウレタン樹脂組成物100質量部を、N,N−ジメチルアクリルアミド30質量部で更に希釈し、厚さ(Wet)1mmとなるようにポリエチレンテレフタレート(PET)フィルムに塗布した。次いで、凝固浴(25℃の水)へ塗布基材を10分間浸漬させ、ウレタン樹脂(A−2)を凝固させた。その後、この基材を50℃の水に60分間浸漬させて溶剤を洗浄した。洗浄後、基材を120℃で30分間熱風乾燥させ、多孔体を得た。
合成例3で得られたウレタン樹脂組成物100質量部を、N,N,2−トリメチルプロピオンアミド30質量部で更に希釈し、厚さ(Wet)1mmとなるようにポリエチレンテレフタレート(PET)フィルムに塗布した。次いで、凝固浴(25℃の水)へ塗布基材を10分間浸漬させ、ウレタン樹脂(A−3)を凝固させた。その後、この基材を50℃の水に60分間浸漬させて溶剤を洗浄した。洗浄後、基材を120℃で30分間熱風乾燥させ、多孔体を得た。
合成例4で得られたウレタン樹脂組成物100質量部を、N,N−ジメチルアクリルアミド30質量部で更に希釈し、厚さ(Wet)1mmとなるようにポリエチレンテレフタレート(PET)フィルムに塗布した。次いで、凝固浴(25℃の水)へ塗布基材を10分間浸漬させ、ウレタン樹脂(A−4)を凝固させた。その後、この基材を50℃の水に60分間浸漬させて溶剤を洗浄した。洗浄後、基材を120℃で30分間熱風乾燥させ、多孔体を得た。
攪拌機、還流器、温度計を有する反応装置に、ポリエステルポリオール(DIC株式会社製「CMA−244」、数平均分子量;2,000)を100質量部、エチレングリコールを8質量部、γ−ブチロラクトンを250質量部、及び、4,4’−ジフェニルメタンジイソシアネートを45質量部投入し、撹拌下85℃で反応させようとしたが、途中でゲル化した。
実施例で得られた多孔体を、日立ハイテクテクノロジー株式会社製走査型電子顕微鏡「SU3500」(倍率500倍)を使用して観察し、多孔体を形成しているか確認した。多孔体が確認できたものは「T」、確認できなかったものは「F」と評価した。
・「DMIB」:N,N,2−トリメチルプロピオンアミド
・「DMAA」:N,N−ジメチルアクリルアミド
・「GBL」:γ−ブチロラクトン
Claims (1)
- ウレタン樹脂(A)及び溶剤(B)を含有するウレタン樹脂組成物を湿式製膜法により加工する多孔体の製造方法であって、
前記ウレタン樹脂組成物が、気孔形成剤を含まないものであり、
前記溶剤(B)が、N,N,2−トリメチルプロピオンアミド、及び/又は、N,N−ジメチルアクリルアミドであることを特徴とする多孔体の製造方法。
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