JP6718235B2 - 炭素繊維強化熱可塑性樹脂複合体 - Google Patents
炭素繊維強化熱可塑性樹脂複合体 Download PDFInfo
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- JP6718235B2 JP6718235B2 JP2016000321A JP2016000321A JP6718235B2 JP 6718235 B2 JP6718235 B2 JP 6718235B2 JP 2016000321 A JP2016000321 A JP 2016000321A JP 2016000321 A JP2016000321 A JP 2016000321A JP 6718235 B2 JP6718235 B2 JP 6718235B2
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Landscapes
- Nonwoven Fabrics (AREA)
Description
リンターパルプ(質量平均繊維長1.2mm)を、増幸産業社製マスコロイダー(登録商標、装置名:MKZA12)を用いて、磨砕処理を行い、フィブリル化セルロースを作製した。フィブリル化セルロースの分散液(濃度0.5質量%)での粘度をB型粘度計(ローターNo.2、ローター回転数60rpm、温度23〜25℃)で測定したところ、80cpであった。
炭素短繊維:繊維径7μm、繊維長6mm
熱可塑性樹脂繊維:繊維径4.5μm、繊維長3mm、未延伸PET繊維
表1の繊維配合率で、分散濃度0.2質量%で5分間、繊維を水に分散して、90メッシュの金属ワイヤーで、25cm×25cmサイズの湿紙を形成し、その後、表面温度140℃のヤンキードライヤーにて乾燥し、坪量27g/m2の炭素短繊維不織布を得た。
実施例及び比較例で製造した炭素短繊維不織布の表裏を、熱可塑性樹脂(PEEK)フィルムで挟み、熱プレス機で、温度360℃、10MPa、5分間加熱加圧加工した後、室温に冷却した。なお、実施例6〜8では、炭素短繊維不織布を熱可塑性樹脂フィルムで挟む前に、炭素短繊維不織布に予熱処理(熊谷理機工業製ロータリードライヤー「DR2000」、温度150℃、片面2分で、不織布の両面を交互に乾燥)を施した。
炭素短繊維不織布の水分率は、JIS P8127:2010「紙及び板紙−ロットの水分試験方法−乾燥器による方法」に準じて測定し、結果を表1に示した。
金属ワイヤー面上で、炭素短繊維の分散性を確認し、金属ワイヤーで形成した湿紙をヤンキードライヤーで乾燥させるまでのシートの破断及び炭素短繊維の脱離の有無を観察した(乾燥前)。また、ヤンキードライヤーで乾燥した後の炭素短繊維の脱離の有無も確認した(乾燥後)。
熱プレス機で複合体を形成した後に、炭素短不織布の周辺において、炭素短繊維の流れ(流動)が発生しているか、また、複合体のそりの有無やボイドの発生状態を観察した。
Claims (1)
- 炭素短繊維と熱可塑性樹脂繊維とフィブリル化セルロース繊維とを含有してなり、フィブリル化セルロース繊維の含有量が、不織布中の全繊維に対して、2〜20質量%であり、不織布の水分率が3.5質量%以下である炭素短繊維不織布と熱可塑性樹脂フィルムとを積層してなる炭素繊維強化熱可塑性樹脂複合体。
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JP7005223B2 (ja) * | 2017-08-18 | 2022-02-04 | ダイセルポリマー株式会社 | 繊維複合体 |
JP7077292B2 (ja) * | 2019-11-22 | 2022-05-30 | 三菱製紙株式会社 | 炭素短繊維不織布 |
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JPH03167390A (ja) * | 1989-11-27 | 1991-07-19 | Mitsubishi Paper Mills Ltd | 活性炭素繊維シート及びフィルター |
JP3067080B2 (ja) * | 1994-07-13 | 2000-07-17 | 東邦レーヨン株式会社 | 吸着材 |
JPH08257360A (ja) * | 1995-03-24 | 1996-10-08 | Mitsubishi Paper Mills Ltd | 光反応性有害物質除去材 |
JP2002212311A (ja) * | 2001-01-15 | 2002-07-31 | Japan Vilene Co Ltd | 炭素繊維強化スタンパブルシート、その製造方法、及びその成形品 |
JP4098160B2 (ja) * | 2003-05-29 | 2008-06-11 | 三菱製紙株式会社 | ガス透過性及び導電性に優れる炭素繊維不織布及びその製造方法 |
JP2007059789A (ja) * | 2005-08-26 | 2007-03-08 | Mitsubishi Paper Mills Ltd | 固体電解コンデンサ用セパレータ |
TWI414543B (zh) * | 2006-02-24 | 2013-11-11 | Toray Industries | 纖維強化熱可塑性樹脂成形體、成形材料及其製法 |
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