JP2003210954A5 - - Google Patents

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JP2003210954A5
JP2003210954A5 JP2002015563A JP2002015563A JP2003210954A5 JP 2003210954 A5 JP2003210954 A5 JP 2003210954A5 JP 2002015563 A JP2002015563 A JP 2002015563A JP 2002015563 A JP2002015563 A JP 2002015563A JP 2003210954 A5 JP2003210954 A5 JP 2003210954A5
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Japan
Prior art keywords
hollow fiber
fiber membrane
producing
solution containing
polyvinylidene fluoride
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JP2002015563A
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JP4599787B2 (en
JP2003210954A (en
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Priority to JP2002015563A priority Critical patent/JP4599787B2/en
Priority claimed from JP2002015563A external-priority patent/JP4599787B2/en
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Publication of JP2003210954A5 publication Critical patent/JP2003210954A5/ja
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Claims (10)

少なくともポリビニリデンフルオライド系樹脂を含む溶液を凝固させて中空糸を得、該中空糸を１．１〜４倍の範囲で延伸し、さらに延伸後の中空糸を弛緩率０．１〜１０％の範囲で弛緩させる中空糸膜の製造方法。  A solution containing at least polyvinylidene fluoride resin is coagulated to obtain a hollow fiber, the hollow fiber is stretched in a range of 1.1 to 4 times, and the hollow fiber after stretching is further relaxed by 0.1 to 10%. A method for producing a hollow fiber membrane that is relaxed within the range of 中空糸の延伸を５０〜１６５℃の温度範囲の熱媒中に２〜３０ｍ／分の範囲の供給速度で供給して行なう請求項１記載の中空糸膜の製造方法。  The method for producing a hollow fiber membrane according to claim 1, wherein the drawing of the hollow fiber is performed by supplying the hollow fiber into a heating medium having a temperature range of 50 to 165 ° C at a supply rate of 2 to 30 m / min. 熱媒として、水、ポリエチレングルコール、グリセリン、蒸気、空気および窒素から選ばれた１つ以上を用いる請求項２記載の中空糸膜の製造方法。  The method for producing a hollow fiber membrane according to claim 2, wherein at least one selected from water, polyethylene glycol, glycerin, steam, air and nitrogen is used as the heat medium. 凝固に際して、ポリビニリデンフルオライド系樹脂を含む溶液を熱誘起相分離させる請求項１〜３の何れかに記載の中空糸膜の製造方法。  The method for producing a hollow fiber membrane according to any one of claims 1 to 3, wherein a solution containing a polyvinylidene fluoride-based resin is subjected to thermally induced phase separation during solidification. ポリビニリデンフルオライド系樹脂を含む溶液を溶媒、あるいは６０重量％以上の溶媒を含む水系液からなる、温度５０℃以下の凝固浴に吐出することにより、凝固させる請求項１〜４の何れかに記載の中空糸膜の製造方法。  The solution containing a polyvinylidene fluoride resin is coagulated by being discharged into a coagulation bath having a temperature of 50 ° C. or less, comprising a solvent or an aqueous solution containing 60% by weight or more of a solvent. The manufacturing method of the hollow fiber membrane of description. 弛緩を５０〜１６５℃の温度範囲の熱媒中において緊張下で行なう請求項１〜５の何れかに記載の中空糸膜の製造方法。  The method for producing a hollow fiber membrane according to any one of claims 1 to 5, wherein the relaxation is performed under tension in a heat medium having a temperature range of 50 to 165 ° C. ポリビニリデンフルオライド系樹脂が８５重量％以上のビニリデンフルオライドホモポリマーを有するものである請求項１〜６の何れかに記載の中空糸膜の製造方法。  The method for producing a hollow fiber membrane according to any one of claims 1 to 6, wherein the polyvinylidene fluoride-based resin has a vinylidene fluoride homopolymer of 85% by weight or more. 少なくともポリビニリデンフルオライド系樹脂を含む溶液を凝固させて中空糸を得、該中空糸を１．１〜４倍の範囲で延伸し、さらに延伸後の中空糸を弛緩率０．１〜１０％の範囲で弛緩させることにより、純水透過量が１．６ｍA solution containing at least polyvinylidene fluoride resin is coagulated to obtain a hollow fiber, the hollow fiber is stretched in a range of 1.1 to 4 times, and the hollow fiber after stretching is further relaxed by 0.1 to 10%. The amount of pure water permeation is 1.6m by relaxing in the range of 3Three ／（ｍ/ (M 22 ・ｈ・１００ｋＰａ）以上、引張り強度３．２ＭＮ／ｍ・ H · 100kPa) or more, tensile strength 3.2MN / m 22 以上、かつ伸度が５０％以上である中空糸膜を製造する中空糸膜の製造方法であって、前記凝固に際して、ポリビニリデンフルオライド系樹脂を含む溶液を熱誘起相分離させる中空糸膜の製造方法。A hollow fiber membrane production method for producing a hollow fiber membrane having an elongation of 50% or more, wherein the solution containing polyvinylidene fluoride resin is thermally induced phase-separated during the solidification. Production method. 請求項１〜７の何れかに記載の製造方法で製造された中空糸膜であって、純水透過量が１．６ｍ3／（ｍ2・ｈ・１００ｋＰａ）以上、引張り強度３．２ＭＮ／ｍ2以上、かつ伸度が５０％以上である中空糸膜。It is a hollow fiber membrane manufactured with the manufacturing method in any one of Claims 1-7, Comprising: Pure water permeation amount is 1.6 m < 3 > / (m < 2 > * h * 100 kPa) or more, and tensile strength 3.2MN / A hollow fiber membrane having an m 2 or more and an elongation of 50% or more. 請求項１〜８の何れかに記載の製造方法で製造された中空糸膜を有してなる浄水用中空糸膜エレメント。A hollow fiber membrane element for water purification comprising the hollow fiber membrane produced by the production method according to claim 1.
JP2002015563A 2002-01-24 2002-01-24 Method for producing hollow fiber membrane and hollow fiber membrane Expired - Lifetime JP4599787B2 (en)

Priority Applications (1)

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JP2002015563A JP4599787B2 (en) 2002-01-24 2002-01-24 Method for producing hollow fiber membrane and hollow fiber membrane

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JP2002015563A JP4599787B2 (en) 2002-01-24 2002-01-24 Method for producing hollow fiber membrane and hollow fiber membrane

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JP2003210954A JP2003210954A (en) 2003-07-29
JP2003210954A5 true JP2003210954A5 (en) 2005-07-14
JP4599787B2 JP4599787B2 (en) 2010-12-15

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KR20060089226A (en) 2003-10-03 2006-08-08 가부시끼가이샤 구레하 Vinylidene fluoride based resin porous hollow yarn and method for production thereof
JP4832739B2 (en) * 2004-08-24 2011-12-07 株式会社クレハ Method for producing vinylidene fluoride resin porous membrane
US20090261034A1 (en) * 2005-09-14 2009-10-22 Takeo Takahashi Vinylidene Fluoride Resin Hollow Fiber Porous Membrane and Method for Production Thereof
JP5076320B2 (en) 2006-01-11 2012-11-21 東洋紡績株式会社 Method for producing polyvinylidene fluoride hollow fiber type microporous membrane
WO2008018181A1 (en) * 2006-08-10 2008-02-14 Kuraray Co., Ltd. Porous membrane of vinylidene fluoride resin and process for producing the same
JP2008062229A (en) * 2006-08-10 2008-03-21 Kuraray Co Ltd Porous polyvinylidene fluoride membrane and method for preparing the same
JP5641553B2 (en) * 2006-09-26 2014-12-17 東レ株式会社 Method for producing hollow fiber membrane
EP2145675A1 (en) 2007-03-23 2010-01-20 Kureha Corporation Vinylidene fluoride resin hollow-fiber porous membrane and process for production of the same
CN101590374B (en) * 2008-05-27 2012-09-19 广州美能材料科技有限公司 Polyvinylidene fluoride hollow fiber film and preparation method thereof
CN102348495A (en) * 2009-01-15 2012-02-08 株式会社吴羽 Vinylidene fluoride resin hollow fiber porous membrane and process for producing same
CN101920173B (en) * 2010-04-23 2011-11-23 苏州膜华材料科技有限公司 Ultrafiltration membrane using ethylene glycol carbonic ester and diethylene glycol as diluent and manufacturing method thereof
CN101890303B (en) * 2010-04-23 2011-11-23 苏州膜华材料科技有限公司 Hollow fibrous membrane with asymmetrical structure and preparation method thereof
CN101879417B (en) * 2010-04-23 2011-11-23 苏州膜华材料科技有限公司 Hollow fiber membrane containing PMMA (Polymethyl Methacrylate) and preparation method thereof
CN101890304B (en) * 2010-04-23 2011-11-23 苏州膜华材料科技有限公司 Porous membrane with three-dimensional interpenetrating polymer network and preparation method
CN101890308B (en) * 2010-04-23 2011-11-23 苏州膜华材料科技有限公司 External compression type hollow fiber ultrafiltration membrane and preparation method
CN101890307B (en) * 2010-04-23 2011-11-23 苏州膜华材料科技有限公司 Hollow-fiber membrane with density gradient pores and preparation method
CN101890310B (en) * 2010-04-23 2013-11-06 苏州膜华材料科技有限公司 Porous membrane using acetic acid-2-ethoxyl ethyl ester and polyethylene glycol as diluents and preparation method
CN102350231B (en) * 2011-06-27 2014-01-22 张会艳 Method for manufacturing polyvinylidene fluoride separation membrane
CN103191655A (en) * 2013-04-01 2013-07-10 杭州求是膜技术有限公司 Composite hollow fiber film and preparation method thereof
CN104984669A (en) * 2015-05-30 2015-10-21 桐乡市健民过滤材料有限公司 Ultralow pressure polysulfone hollow spongy membrane and preparation method thereof
KR102382287B1 (en) * 2015-08-31 2022-04-05 도레이 카부시키가이샤 porous hollow fiber membrane
KR102524285B1 (en) * 2016-02-25 2023-04-24 도레이 카부시키가이샤 porous hollow fiber membrane
CN112877795B (en) * 2021-01-13 2022-07-29 中国水产科学研究院东海水产研究所 Preparation method of fishing polyvinylidene fluoride monofilament

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JPS5891732A (en) * 1981-11-27 1983-05-31 Teijin Ltd Porous polyvinylidene fluoride resin membrane and preparation thereof
JPS60216804A (en) * 1984-04-13 1985-10-30 Teijin Ltd Porous hollow yarn membrane comprising polyvinylidene fluoride and preparation thereof
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