JP7084322B2 - プリフォーム、その製造方法及びその使用 - Google Patents
プリフォーム、その製造方法及びその使用 Download PDFInfo
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- JP7084322B2 JP7084322B2 JP2018567298A JP2018567298A JP7084322B2 JP 7084322 B2 JP7084322 B2 JP 7084322B2 JP 2018567298 A JP2018567298 A JP 2018567298A JP 2018567298 A JP2018567298 A JP 2018567298A JP 7084322 B2 JP7084322 B2 JP 7084322B2
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Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
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Description
使用中、高い応力に耐えなければならない機械的部品は、複合材料から広く製造される。複合材料は、2以上の非混和性の材料の巨視的な組み合わせである。複合材料は、マトリックスを形成する少なくとも1つの材料、すなわち構造体の結合を確実にする連続相と、補強材料とから成る。
文献 EP第1312453号は、プリプレグ、プリフォーム、ラミネート及びサンドイッチ成形品を含む複合品並びにそれらの製造方法を開示している。特に、平均粒径5μm未満のポリマー粒子でコーティングされた複数の繊維のストランドが開示されている。ポリマー粒子は、熱可塑性ポリマー又は架橋熱可塑性ポリマーである。少なくとも10000g/molの高分子量を有する0.1μmから0.25μmの間の小粒径ポリマー粒子について記載されている。
a) 繊維質基材と
b) 多段ポリマー
とを含むプリフォームであって、
プリフォーム中の多段ポリマーの量が3重量%から50重量%の間であるプリフォームが、その形状を維持することが見出された。
a) 繊維質基材と
b) 多段ポリマー
とを含むプリフォームであって、
プリフォーム中の多段ポリマーの量が3重量%から50重量%の間であるプリフォームが、高分子複合材料又は高分子複合材料を含む機械的若しくは構造化部品又は物品を製造するために使用されうることが見出された。
a)繊維質基材と多段ポリマーの水性分散体とを接触させる工程
b) 工程a)の生成物を乾燥させる工程
c) b)の乾燥生成物を加熱する工程
を含むプリフォームであって、
プリフォーム中の多段ポリマーの量が3重量%から50重量%の間であるプリフォームが、その形状を維持するプリフォームを生じさせることも見出された。
a) 繊維質基材と
b) 多段ポリマー
とを含むプリフォームであって、
プリフォーム中の多段ポリマーの量が3重量%から50重量%の間であるプリフォームに関する。
a) 繊維質基材と多段ポリマーの水性分散体とを接触させる工程
b) 工程a)の生成物を乾燥させる工程
c) b)の乾燥生成物を加熱する工程
を含むプリフォームであって、
プリフォーム中の多段ポリマーの量が3重量%から50重量%の間であるプリフォームを製造するための方法に関する。
a) 繊維質基材と
b) 多段ポリマー
とを含むプリフォームの使用であって、
プリフォオーム中の多段ポリマーの量が高分子複合材料又は高分子複合材料を含む機械的若しくは構造化部品又は物品を製造するために3重量%から50重量%の間である、プリフォームの使用に関する。
a) モノマー又はモノマー混合物(Am)を乳化重合により重合し、0℃未満のガラス転移温度を有するポリマー(A1)を含む1つの層(A)を得る工程
b) モノマー又はモノマー混合物(Bm)の乳化重合により重合し、少なくとも30℃のガラス転移温度を有するポリマー(B1)を含む層(B)を得る工程
を含み、
モノマー又はモノマー混合物(Am)及びモノマー又はモノマー混合物(Bm)はそれぞれ、ポリマー(A1)及びポリマー(B1)の組成に従って前述のモノマーから選択される。
a) モノマー又はモノマー混合物(Am)を乳化重合により重合し、0℃未満のガラス転移温度を有するポリマー(A1)を含む1つの層(A)を得る工程
b) モノマー又はモノマー混合物(Bm)の乳化重合により重合し、少なくとも30℃のガラス転移温度を有するポリマー(B1)を含む層(B)を得る工程
を順に含む。
a) 繊維質基材と、多段ポリマーの水性分散体とを接触させる工程
b) 工程a)の生成物を乾燥させる工程
c) b)の乾燥生成物を加熱する工程
を含み、
プリフォーム中の多段ポリマーの量が3重量%から50重量%の間である。
多段重合後の一次粒子の粒径は、MALVERN社のZetasizer Nano S90で測定される。ポリマー粉末の粒径は、MALVERN社のMalvern Mastersizer 3000で測定される。体積メジアン粒径D50の推定のため、0,5~880μmの範囲を測定する、300mmレンズを備えたMalvern Mastersizer 3000装置が使用される。
多段ポリマーのガラス転移点(Tg)は、熱機械分析を実行することができる機器で測定される。Rheometrics社により提案されたRDAII 「RHEOMETRICS DYNAMIC ANALYSER」が使用されている。この熱機械分析は、適用される温度、ひずみ又は変形の関数として試料の粘弾性変化を正確に測定する。この装置は、温度変化の制御プログラムの間中、ひずみを固定したまま、試料の変形を継続的に記録する。結果は、温度、弾性率(G’)、損失弾性率、及びタン・デルタの関数として、図面により得られる。Tgは、タン・デルタの導関数がゼロに等しい場合、タン・デルタ曲線で読み取られる、比較的高い温度値である。
Claims (15)
- a) 繊維質基材と
b) 多段ポリマー
とを含むプリフォームであって、
多段ポリマーの量が、2つの化合物a)及びb)の合計に基づいて、プリフォームの6重量%から25重量%の間である、プリフォーム。 - 多段ポリマーの量が、2つの化合物a)及びb)の合計に基づいて、7重量%から25重量%の間であることを特徴とする、請求項1に記載のプリフォーム。
- 多段ポリマーが、20nmから800nmの間の重量平均粒径を有する球状ポリマー粒子の形態であることを特徴とする、請求項1又は2に記載のプリフォーム。
- 多段ポリマーが、
a) 0℃未満のガラス転移温度を有するポリマー(A1)を含む1つの段(A)
b) 少なくとも30℃のガラス転移温度を有するポリマー(B1)を含む1つの段(B)
を含むことを特徴とする、請求項1から3のいずれか一項に記載のプリフォーム。 - ポリマー(A1)及び(B1)がアクリル又はメタクリルポリマーであることを特徴とする、請求項4に記載のプリフォーム。
- ポリマー(A1)がシリコーンゴム系ポリマーであることを特徴とする、請求項4に記載のプリフォーム。
- ポリマー(A1)が、イソプレン又はブタジエンに由来する高分子単位を少なくとも50重量%含むことを特徴とする、請求項4に記載のプリフォーム。
- 段(A)が第1の段であり、ポリマー(B1)を含む段(B)が、ポリマー(A1)を含む段(A)にグラフトされていることを特徴とする、請求項4から7のいずれか一項に記載のプリフォーム。
- 繊維質基材が少なくとも1000のアスペクト比を有する繊維を含むことを特徴とする、請求項1から8のいずれか一項に記載のプリフォーム。
- 繊維質基材が積み重ねられた若しくは折り畳まれた繊維質マット又は不織補強材又は繊維束又はこれらの混合物から選択されることを特徴とする、請求項1から9のいずれか一項に記載のプリフォーム。
- a) 繊維質基材と、多段ポリマーの水性分散体とを接触させる工程
b) 工程a)の生成物を乾燥させる工程
c) 工程b)の乾燥生成物を加熱する工程
を含む、請求項1から10のいずれか一項に記載のプリフォームを製造するための方法。 - 工程b)が少なくとも45℃に加熱することによって行われることを特徴とする、請求項11に記載の方法。
- 工程c)が100℃から250℃の間の温度の金型の中で行われることを特徴とする、請求項11に記載の方法。
- 高分子複合材料又は高分子複合材料を含む機械的若しくは構造化部品又は物品を製造するための、請求項1から10のいずれか一項に記載のプリフォームの使用。
- 高分子複合材料又は高分子複合材料を含む機械的若しくは構造化部品又は物品を製造するための、請求項11から13のいずれか一項に記載の方法によって製造されるプリフォームの使用。
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FR1655833A FR3053045B1 (fr) | 2016-06-23 | 2016-06-23 | Preforme, son procede de preparation, son utilisation et composite comprenant celle-ci |
PCT/EP2017/065569 WO2017220793A1 (en) | 2016-06-23 | 2017-06-23 | Preform, its method of preparation and its use |
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BR112018076371A2 (pt) | 2019-03-26 |
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