JP6953462B2 - 成形材料およびチューブ - Google Patents
成形材料およびチューブ Download PDFInfo
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
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- B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
- B29K2027/12—Use of polyvinylhalogenides or derivatives thereof as moulding material containing fluorine
- B29K2027/18—PTFE, i.e. polytetrafluorethene, e.g. ePTFE, i.e. expanded polytetrafluorethene
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Description
したがって、本開示における金属含有量には、成形材料の表面に存在する金属成分の量に加えて、成形材料の内部に含有される金属成分の量も含まれる。
CH2=CX5Rf3、CF2=CFRf3、CF2=CFORf3、CH2=C(Rf3)2
(式中、X5はHまたはF、Rf3はエーテル結合を含んでいてもよいフルオロアルキル基を表す。)で表される単量体が挙げられ、なかでも、CF2=CFRf3、CF2=CFORf3およびCH2=CX5Rf3で表される含フッ素ビニルモノマーが好ましく、HFP、CF2=CF−ORf4(式中、Rf4は炭素数1〜5のパーフルオロアルキル基を表す。)で表されるパーフルオロ(アルキルビニルエーテル)およびRf3が炭素数1〜8のフルオロアルキル基であるCH2=CX5Rf3で表される含フッ素ビニルモノマーがより好ましい。また、TFEおよびエチレンと共重合可能な単量体としては、イタコン酸、無水イタコン酸等の脂肪族不飽和カルボン酸であってもよい。上記ETFEは、TFEおよびエチレンと共重合可能な単量体単位が、0.1〜10モル%であることが好ましく、0.1〜5モル%であることがより好ましく、0.2〜4モル%であることが特に好ましい。
ダイヤフラムポンプの隔膜部、ベローズ成形品、電線被覆品、半導体用部品、パッキン・シール、コピーロール用薄肉チューブ、モノフィラメント、ベルト、ガスケット、光学レンズ部品、石油発掘用チューブ、地熱発電用チューブ、石油発掘用電線、サテライト用電線、原子力発電用電線、航空機用電線、太陽電池パネルフィルム、二次電池や電気二重層コンデンサーなどのガスケット、OAロール等。
成形材料の灰化分析は、国際公開第94/28394号に記載されている灰化法を用いて行った。すなわち、実施例および比較例で得られたペレットから、試料を2〜6mgの範囲で精秤し、グラファイト製のキュベット内にて、1100℃で180秒間加熱することにより灰化させて、原子吸光分光光度計(偏光ゼーマン原子吸光分光光度計(Z−8100)、日立製作所社製)にて分析した。
重合槽として、ガラスライニングされたオートクレーブを準備した。また、洗浄槽として、ガラスライニングされた洗浄槽を用いた。さらに、貯槽、配管などの、原料およびフッ素樹脂と接するその他の設備についても、PFAでライニングされた設備を用いた。
ガラスライニングされた重合槽および洗浄槽に代えて、PFAライニングされた重合槽および洗浄槽を用いた以外は、実施例1と同様にして、乾燥パウダーを得た。得られた乾燥パウダーを用いて、PFAの物性を測定したところ、実施例1と同様の物性を有するPFAであることが確認された。
熱風乾燥および移送に用いる空気として、エアドライヤーおよびULPAフィルター(捕集率:150nmの粒子に対して99.999%以上)を通過させた空気(露点が−15℃の乾燥空気)を用いた以外は、実施例2と同様にして、ペレットを得て、同様に評価した。結果を表1に示す。
熱風乾燥および移送に用いる空気として、エアドライヤーおよびULPAフィルター(捕集率:100nmの粒子に対して99.999%以上)を通過させた空気(露点が−15℃の乾燥空気)を用いた以外は、実施例2と同様にして、ペレットを得て、同様に評価した。結果を表1に示す。
重合槽および洗浄槽として、SUS317製の重合槽および洗浄槽を用い、また、貯槽、配管などの、原料およびフッ素樹脂と接するその他の設備についても、SUS317製の設備を用いた以外は、実施例1と同様にして、湿潤パウダーを得た。得られた湿潤パウダーを、実施例1と同様の方法により乾燥させて、乾燥パウダーを得た。
SUSの材質を、SUS317からSUS316に変更した以外は、比較例1と同様にして、乾燥パウダーおよびペレットを得て、同様に評価した。結果を表1に示す。
実施例1、比較例1および2で得られたペレットを、PFA製容器に入れた50質量%フッ酸に、25℃で24時間浸漬させた。
また、比較例3として、金属成分を比較的多く含有するが、その他の構成は比較例1および2で得られたペレットと同様であるペレットを準備して、フッ酸に同様に浸漬させた。
同時に、ペレットを浸漬させていないフッ酸も、25℃で24時間放置して、参照水溶液を調製した。
Claims (4)
- 溶融加工性を有するフッ素樹脂を含有し、灰化法により測定される金属含有量が40ng/1g以下であり、
前記フッ素樹脂が、テトラフルオロエチレン/パーフルオロ(アルキルビニルエーテル)共重合体およびテトラフルオロエチレン/ヘキサフルオロプロピレン共重合体からなる群より選択される少なくとも1種であり、前記フッ素樹脂のメルトフローレートが、1〜6g/10分であるチューブ用成形材料。 - ペレットである請求項1に記載のチューブ用成形材料。
- 前記フッ素樹脂が、フッ素化処理されたフッ素樹脂である請求項1または2に記載のチューブ用成形材料。
- 請求項1〜3のいずれかに記載のチューブ用成形材料からなるチューブ。
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TW108107579A TWI809050B (zh) | 2018-03-27 | 2019-03-07 | 成形材料及管 |
JP2020017898A JP6950763B2 (ja) | 2018-03-27 | 2020-02-05 | 成形材料の製造方法および成形品の製造方法 |
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US (1) | US12036714B2 (ja) |
EP (1) | EP3778760A4 (ja) |
JP (2) | JP6953462B2 (ja) |
KR (1) | KR102389549B1 (ja) |
CN (1) | CN111936572A (ja) |
TW (1) | TWI809050B (ja) |
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JP2021160856A (ja) * | 2020-03-31 | 2021-10-11 | Agc株式会社 | フッ素樹脂フィルム及びその製法 |
KR20230130736A (ko) | 2021-02-26 | 2023-09-12 | 다이킨 고교 가부시키가이샤 | 사출 성형체 및 그 제조 방법 |
WO2022181244A1 (ja) | 2021-02-26 | 2022-09-01 | ダイキン工業株式会社 | 射出成形体およびその製造方法 |
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US5399643A (en) * | 1992-04-22 | 1995-03-21 | Diakin Industries Ltd. | Method for preparation of tetrafluoroethylene/hexafluoropropylene copolymer |
US5546182A (en) * | 1993-05-21 | 1996-08-13 | Daikin Industries Ltd. | Method for determination of trace metal impurity in fluorine-containing polymer and process for production of fluorine-containing polymer using the method |
EP1840142B1 (en) | 1998-03-25 | 2009-12-02 | Daikin Industries, Ltd. | Method of reducing metal content in fluorine-containing polymer |
CN1165386C (zh) * | 1998-03-25 | 2004-09-08 | 大金工业株式会社 | 半导体制造装置用氟橡胶类成型制品的洗涤方法和被洗涤的成型制品 |
JP4001418B2 (ja) | 1998-06-15 | 2007-10-31 | 旭硝子株式会社 | 含フッ素共重合体成形材料 |
JP2000159948A (ja) * | 1998-12-01 | 2000-06-13 | Asahi Glass Co Ltd | Etfe成形体 |
ATE312870T1 (de) | 1999-01-12 | 2005-12-15 | Daikin Ind Ltd | Geformtes elastomer |
DE19903657A1 (de) * | 1999-01-29 | 2000-08-03 | Dyneon Gmbh | Tetrafluorethylen/Hexafluorpropylen-Copolymere mit besserer Aufziehbarkeit |
US6541588B1 (en) | 1999-01-29 | 2003-04-01 | 3M Innovative Properties Company | Tetrafluoroethylene/hexafluoropropylene copolymers with higher drawability |
AU2001268086A1 (en) * | 2000-06-01 | 2001-12-11 | 3M Innovative Properties Company | High purity fluoropolymers |
JP2002127137A (ja) | 2000-10-19 | 2002-05-08 | Akaishi Kinzoku Kogyo Kk | 除湿乾燥装置 |
JP2004285264A (ja) * | 2003-03-24 | 2004-10-14 | Yunimatekku Kk | 含フッ素共重合体の製造方法 |
US20040232584A1 (en) * | 2003-05-20 | 2004-11-25 | Johnson David William | Testing of fabricated fluoropolymer articles for metal contamination |
EP1887040B1 (en) * | 2005-05-18 | 2013-05-15 | Daikin Industries, Ltd. | Fluororesin composition and electric wire |
US7488781B2 (en) * | 2005-05-25 | 2009-02-10 | Gore Enterprise Holdings, Inc. | High purity transparent perfluoroelastomer parts and a process to produce the same |
JP4756691B2 (ja) | 2005-09-22 | 2011-08-24 | 株式会社スター精機 | 樹脂ペレット乾燥装置 |
JP2007160581A (ja) | 2005-12-12 | 2007-06-28 | Star Seiki Co Ltd | 樹脂ペレットの除湿乾燥装置及びその方法 |
JP5704881B2 (ja) | 2010-10-15 | 2015-04-22 | 中村科学工業株式会社 | 粒状プラスチック材料の乾燥装置用のホッパドライヤ |
JP5695479B2 (ja) | 2011-04-21 | 2015-04-08 | 東京インキ株式会社 | 樹脂ペレットの製造方法 |
WO2014088820A1 (en) * | 2012-12-04 | 2014-06-12 | 3M Innovative Properties Company | Highly fluorinated polymers |
JP7202082B2 (ja) * | 2017-06-23 | 2023-01-11 | 三井・ケマーズ フロロプロダクツ株式会社 | 熱溶融性フッ素樹脂成形品 |
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US12036714B2 (en) | 2024-07-16 |
TWI809050B (zh) | 2023-07-21 |
US20210008775A1 (en) | 2021-01-14 |
JP2020097750A (ja) | 2020-06-25 |
EP3778760A1 (en) | 2021-02-17 |
JP6950763B2 (ja) | 2021-10-13 |
EP3778760A4 (en) | 2021-12-29 |
TW201942148A (zh) | 2019-11-01 |
JP2019172967A (ja) | 2019-10-10 |
CN111936572A (zh) | 2020-11-13 |
KR102389549B1 (ko) | 2022-04-22 |
KR20200125674A (ko) | 2020-11-04 |
WO2019187859A1 (ja) | 2019-10-03 |
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