JP6149123B2 - 連続炭素繊維強化熱可塑性プリプレグの製造方法 - Google Patents
連続炭素繊維強化熱可塑性プリプレグの製造方法 Download PDFInfo
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- 239000004952 Polyamide Substances 0.000 claims description 6
- 239000004743 Polypropylene Substances 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 229920002647 polyamide Polymers 0.000 claims description 6
- 229920002530 polyetherether ketone Polymers 0.000 claims description 6
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Description
1.CFRTP板材の製造
広幅化/コーティングCF(24K)と熱可塑性樹脂フィルムを積層、溶融、含浸して連続炭素繊維テープ(CF tape)を製造し、これを積層して100mm×180mmサイズの鋼鉄(Steel)材質の金型に挿入した後、270℃の温度において熱を加えて樹脂を溶かし、連続炭素繊維テープ(CF tape)間の接合力が生じたら、〜10MPaの圧力を加え、その後、冷却させる熱間圧縮成形方式でUD(Uni−Directional、一方向)型のCFRTP板材の試片を製作した。
上記1.によって製造されたCFRTP板材から図8(b)に示されているように、12.7mm(w)及び127mm(d)サイズの試片を製作して図8(a)に示されているような屈曲性能測定装置(Instron UTM 5569A)を用いてASTM D790の標準化された測定方法で屈曲性能を測定した。
図10は本発明の例示的な板材の断面を異なる倍率で示したSEMの分析結果である。
Claims (12)
- 広幅化された複数個の炭素繊維を提供する段階と、
前記広幅化された炭素繊維の上部及び下部の少なくとも一部に熱可塑性フィルムを配置して積層体を製造する段階と、
前記積層体にマイクロウエーブを照射して熱可塑性フィルムと炭素繊維の界面を融着して接合体を製造する段階と、を含み、
前記炭素繊維は前記熱可塑性フィルムより溶融温度が低い接合用樹脂でコーティングされる、連続炭素繊維強化熱可塑性プリプレグの製造方法。 - 前記接合体を製造する段階は、100〜450℃のハロゲンランプ及び赤外線ランプからなるグループより選択される少なくとも一つの熱源によって行われる、請求項1に記載の連続炭素繊維強化熱可塑性プリプレグの製造方法。
- 前記広幅化された複数個の炭素繊維は一定の間隔で配置される、請求項1に記載の連続炭素繊維強化熱可塑性プリプレグの製造方法。
- 前記熱可塑性フィルムは、ポリプロピレン(PP)、ポリアミド(PA)、ポリエーテルエーテルケトン(PEEK)、及びポリエチレンテレフタレート(PET)からなるグループより選択される、請求項1に記載の連続炭素繊維強化熱可塑性プリプレグの製造方法。
- 前記熱可塑性フィルムの厚さは10〜100μmである、請求項1に記載の連続炭素繊維強化熱可塑性プリプレグの製造方法。
- 一対のローラによる真空または常圧圧着によって圧着する段階をさらに含む、請求項1に記載の連続炭素繊維強化熱可塑性プリプレグの製造方法。
- 前記圧着する段階は100〜450℃の温度で行われる、請求項6に記載の連続炭素繊維強化熱可塑性プリプレグの製造方法。
- 加熱する段階と、
追加の一対のローラによって真空または常圧圧着する段階と、をさらに含む、請求項6に記載の連続炭素繊維強化熱可塑性プリプレグの製造方法。 - 前記加熱する段階は100〜450℃の温度で行われる、請求項8に記載の連続炭素繊維強化熱可塑性プリプレグの製造方法。
- 追加の圧着する段階は100〜450℃の温度で行われる、請求項8に記載の連続炭素繊維強化熱可塑性プリプレグの製造方法。
- 前記加熱する段階は、ハロゲンランプ及び赤外線ランプからなるグループより選択される少なくとも一つの熱源によって行われる、請求項8に記載の連続炭素繊維強化熱可塑性プリプレグの製造方法。
- 前記積層体は、積層された熱可塑性フィルム、及び熱可塑性フィルムの間に配置された炭素繊維を含んで製造される、請求項1に記載の連続炭素繊維強化熱可塑性プリプレグの製造方法。
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