JP6148281B2 - 繊維強化成形品の成形方法 - Google Patents
繊維強化成形品の成形方法 Download PDFInfo
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- JP6148281B2 JP6148281B2 JP2015091677A JP2015091677A JP6148281B2 JP 6148281 B2 JP6148281 B2 JP 6148281B2 JP 2015091677 A JP2015091677 A JP 2015091677A JP 2015091677 A JP2015091677 A JP 2015091677A JP 6148281 B2 JP6148281 B2 JP 6148281B2
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- 239000000835 fiber Substances 0.000 title claims description 72
- 238000000465 moulding Methods 0.000 title claims description 30
- 238000000034 method Methods 0.000 title claims description 21
- 239000012783 reinforcing fiber Substances 0.000 claims description 121
- 229920005992 thermoplastic resin Polymers 0.000 claims description 49
- 239000000463 material Substances 0.000 claims description 45
- 229920005989 resin Polymers 0.000 claims description 29
- 239000011347 resin Substances 0.000 claims description 29
- 239000000758 substrate Substances 0.000 claims description 18
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 14
- 239000004917 carbon fiber Substances 0.000 claims description 14
- 230000007704 transition Effects 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 4
- 239000002759 woven fabric Substances 0.000 claims description 2
- 229920006122 polyamide resin Polymers 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 10
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 10
- 238000005470 impregnation Methods 0.000 description 8
- 239000011800 void material Substances 0.000 description 8
- 238000005452 bending Methods 0.000 description 7
- -1 polyethylene Polymers 0.000 description 7
- 239000002131 composite material Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000004744 fabric Substances 0.000 description 5
- 238000002844 melting Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- 239000012779 reinforcing material Substances 0.000 description 5
- 230000037303 wrinkles Effects 0.000 description 5
- 239000004743 Polypropylene Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 229920001155 polypropylene Polymers 0.000 description 4
- 238000010008 shearing Methods 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 239000002243 precursor Substances 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 239000004696 Poly ether ether ketone Substances 0.000 description 2
- 239000004697 Polyetherimide Substances 0.000 description 2
- 239000004734 Polyphenylene sulfide Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920001652 poly(etherketoneketone) Polymers 0.000 description 2
- 229920002492 poly(sulfone) Polymers 0.000 description 2
- 229920001707 polybutylene terephthalate Polymers 0.000 description 2
- 229920002530 polyetherether ketone Polymers 0.000 description 2
- 229920001601 polyetherimide Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920000069 polyphenylene sulfide Polymers 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229920012266 Poly(ether sulfone) PES Polymers 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
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- 238000009826 distribution Methods 0.000 description 1
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- 230000009477 glass transition Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 239000000088 plastic resin Substances 0.000 description 1
- 229920002312 polyamide-imide Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
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Description
であるから、所定の熱可塑性樹脂を有する混合物を調整するのが容易でなく、取扱性に問題がある。特許文献2に記載の切込プリプレグ基材は、プリプレグに設ける切り込みの形状や分布を繊維強化樹脂成形品の形状や加工程度に応じて試行錯誤で求める必要があるという問題がある。
2 緯糸
3 熱可塑性樹脂
10 下金型
20 上金型
30 強化繊維基材
Claims (4)
- 熱可塑性樹脂を強化繊維に半含浸させた強化繊維基材を金型に載置し、加圧して成形加工する工程と、
前記金型を閉じた加圧状態で前記熱可塑性樹脂の転移温度以上に昇温し、前記成形加工された強化繊維基材に前記熱可塑性樹脂を含浸させてその見かけ密度ρが目標見かけ密度ρcの95%以上に完全含浸させる工程と、
前記完全含浸させた強化繊維基材を冷却し、離型する工程と、を有してなる繊維強化成形品の成形方法。
ここで、目標見かけ密度ρcは、強化繊維の繊維体積含有率Vf及び密度ρf、樹脂の樹脂体積含有率Vr及び密度ρrとするとき、ρc=Vr×ρr+Vf×ρfである。転移温度は、JIS K7121に規定する温度である。半含浸させた強化繊維基材とは、その見かけ密度ρが目標見かけ密度ρcの50%〜2%である。 - 半含浸させた強化繊維基材は、その強化繊維基材が外面に開口した空隙を有するように熱可塑性樹脂が含浸してなる請求項1に記載の繊維強化成形品の成形方法。
- 強化繊維基材は、繊条状若しくは織物状の強化繊維からなるもの、または、二次元若しくは三次元的にランダムに配向した不連続状の強化繊維からなるものであることを特徴とする請求項1〜3の何れか一項に記載の繊維強化成形品の成形方法。
- 強化繊維基材は、強化繊維を炭素繊維とする目付が20g/m2〜1000g/m2である請求項1〜4の何れか一項に記載の繊維強化成形品の成形方法。
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JP2016203585A JP2016203585A (ja) | 2016-12-08 |
JP6148281B2 true JP6148281B2 (ja) | 2017-06-14 |
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JP5650559B2 (ja) * | 2011-02-23 | 2015-01-07 | 帝人株式会社 | 複合成形体の製造方法 |
RU2553299C1 (ru) * | 2011-05-31 | 2015-06-10 | Тейдзин Лимитед | Способ изготовления профилированного изделия с сохраняющейся изотропией |
CN103797051B (zh) * | 2011-09-06 | 2017-05-17 | 帝人株式会社 | 由纤维增强复合材料制成并具有优异的表面外观的成形制品 |
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