JP5030576B2 - ナノスケールセラミック複合材及び製造方法 - Google Patents
ナノスケールセラミック複合材及び製造方法 Download PDFInfo
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Description
本実施例では、ポリマーセラミック前駆体としてポリシラザン(PSZ)を使用し、ブロック共重合体としてポリブタジエン−ブロック−ポリエチレンオキシド(PB−b−PEO)を使用してC/SiCN(−O)の規則性セラミック複合材を製造した。
本実施例では、ポリカルボシランをポリブタジエンと非相溶性のものからポリブタジエンと相溶性のものへと変えるため、ポリカルボシランの極性を変化させた。
本実施例では、ポリマーセラミック前駆体としてポリシラザン(PSZ)及び実施例2で製造した改質ポリカルボシラン(m−PCS)を使用し、ブロック共重合体としてポリブタジエン−ブロック−ポリエチレンオキシド(PB−b−PEO)を使用して、2種類のセラミック組成物を含む規則複合材を製造した。
本実施例では、ポリマーセラミック前駆体としてポリシラザン(PSZ)及びポリ(ジペンチルアミノボラジレン)(DPBZ)を使用し、ブロック共重合体としてポリブタジエン−ブロック−ポリエチレンオキシド(PB−b−PEO)を使用して、2種類のセラミック組成物を含む複合形態の規則複合材を製造した。複合構造体は、マクロ相分離領域に2つの長さスケールが異なる規則構造を含んでいた。
本実施例では、ポリマーセラミック前駆体としてポリシラザン(PSZ)及びポリ(ジペンチルアミノボラジレン)(DPBZ)を使用し、ブロック共重合体としてポリブタジエン−ブロック−ポリエチレンオキシド(PB−b−PEO)を使用して、2種類のセラミック組成物を含む規則複合材を製造した。本実施例では、PSZとDPBZとの反応を軽減することため、トリエチルアミン(TEA)を添加してDPBZを錯化して一様なドメインサイズを有する規則構造を得た。
本実施例では、ポリマーセラミック前駆体としてポリシラザン(PSZ)及びアルキルアミノボラジン(AABZ)を使用し、ブロック共重合体としてポリブタジエン−ブロック−ポリエチレンオキシド(PB−b−PEO)を使用して、2種類のセラミック組成物を含む規則複合材を製造した。この実施例で使用したポリマーAABZは、分子前駆体を不活性雰囲気下で130℃で24時間加熱した後180℃で36時間加熱することによって得た。
110 セラミック組成物
120 規則性領域
Claims (14)
- ナノスケールセラミック複合材(100)の製造方法であって、
ポリマーセラミック前駆体が、極性の異なる2種類以上のブロックを有するブロック共重合体の特定のブロックと混和性となって選択的に会合して、それらの混合物が自己集合して規則構造を形成できるように、上記ポリマーセラミック前駆体の極性を化学的に改質する段階であって、化学的に改質したポリマーセラミック前駆体が、その改質前は相溶性であった上記ブロック共重合体のブロックと非相溶性となる段階、
上記改質ポリマーセラミック前駆体をブロック共重合体と混合して混合物を形成する段階、
混合物から規則構造を形成させる段階、及び
ナノスケールセラミック複合材の形成に有効な時間及び温度で規則構造を加熱する段階
を含んでなる方法。 - 混合物から規則構造を形成させる段階が、
改質ポリマーセラミック前駆体の少なくとも一部を架橋させる
ことを含む、請求項1記載の方法。 - ポリマーセラミック前駆体を改質する段階が、ポリマーセラミック前駆体に官能基を付加すること、ポリマーセラミック前駆体を他のモノマー又はポリマーと共重合してポリマーセラミック前駆体を含む共重合体を形成すること、或いは分解してラジカル開始剤を生じる原子団でポリマーセラミック前駆体を官能化することを含む、請求項1又は請求項2記載の方法。
- 規則構造を加熱する段階が、
ブロック共重合体を分解し、
ポリマーセラミック前駆体をセラミック化する
ことを含む、請求項1乃至請求項3のいずれか1項記載の方法。 - 規則構造を加熱する温度が500〜1500℃である、請求項1乃至請求項4のいずれか1項記載の方法。
- 規則構造を加熱する段階がガスの存在下で実施される、請求項1乃至請求項5のいずれか1項記載の方法。
- 改質前のポリマーセラミック前駆体が、ポリシラザン、ポリカルボシラン、ポリボロカルボシラン、ポリボロカルボシラザン、ポリボラジレン、デカボランで官能化した開環ポリノルボルネン、ポリ(ジペンチルアミノボラジレン)、アルキルアミノボラジン又はこれらの1種以上の組合せである、請求項1乃至請求項6のいずれか1項記載の方法。
- ブロック共重合体が、ブタジエン、ポリイソプレン、ポリジメチルシロキサン、ポリスチレン、ポリビニルピリジン、ポリエチレン、ポリプロピレン、ポリイソブチレン、ポリプロピレンオキシド、ポリエチレンオキシド、ポリフェニレンオキシド、ポリエチレンプロピレン、ポリエーテルイミド、ポリイミド、ポリカーボネート、ポリアクリレート、ポリメタクリレート、ポリラクチド、ポリアクリロニトリル及びポリメタクリル酸からなる群から選択される2種類以上の成分を含む、請求項1乃至請求項7のいずれか1項記載の方法。
- ナノスケールセラミック複合材(100)が、酸化物(110)、炭化物(110)、窒化物(110)、ホウ化物(110)、オキシ炭化物(110)、オキシ窒化物(110)、炭窒化物(110)又はこれらの1種以上を含む組合せを含む、請求項1乃至請求項8のいずれか1項記載の方法。
- ナノスケールセラミック複合材(100)が、酸化ケイ素、炭化ケイ素、窒化ケイ素、炭窒化ケイ素、オキシ窒化ケイ素、オキシ炭窒化ケイ素、オキシ炭化ケイ素、炭窒化ホウ素ケイ素、窒化ホウ素、炭化ホウ素、炭窒化ホウ素、ホウ化ハフニウム、炭化ジルコニウム、ホウ化ジルコニウム又はこれらの1種以上を含む組合せを含む、請求項1乃至請求項8のいずれか1項記載の方法。
- ポリマーセラミック前駆体がポリカルボシランであって、その化学的改質が、トリス(ペンタフルオロフェニル)ボラン触媒の存在下でポリカルボシランをアルコール又はエーテルと反応させてシリル基の少なくとも一部を官能化することによって実施される、請求項1記載の方法。
- 反応前のポリカルボシランが次式の構造を有する、請求項11記載の方法。
- 反応によって、次式の改質ポリマーセラミック前駆体が得られる、請求項11又は請求項12記載の方法。
- ナノスケールセラミック複合材(100)の製造方法であって、
2種類のポリマーセラミック前駆体を準備する段階、
極性の異なる2種類以上のブロックを有するブロック共重合体を準備する段階、
ポリマーセラミック前駆体が上記ブロック共重合体の特定のブロックと混和性となって選択的に会合して、それらの混合物が自己集合して規則構造を形成できるように、上記ポリマーセラミック前駆体の少なくとも一方の極性を化学的に改質する段階であって、化学的に改質したポリマーセラミック前駆体が、その改質前は相溶性であった上記ブロック共重合体のブロックと非相溶性となる段階、
上記2種類のポリマーセラミック前駆体をブロック共重合体と混合して混合物を形成する段階であって、上記2種類のポリマーセラミック前駆体が上記ブロック共重合体の異なる種類のブロックと選択的に会合して混合物が自己集合する、段階、
化学的に改質した少なくとも一方のポリマーセラミック前駆体の少なくとも一部を架橋して、規則構造を形成する段階、及び
ナノスケールセラミック複合材の形成に有効な時間及び温度で規則構造を加熱する段階
を含んでなる方法。
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US11/316,091 US7749425B2 (en) | 2005-12-21 | 2005-12-21 | Nanoscale ceramic composites and methods of making |
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JP5207344B2 (ja) * | 2007-07-24 | 2013-06-12 | 独立行政法人産業技術総合研究所 | ダイレクトライティング用コロイドゲル材料 |
JP2009138014A (ja) * | 2007-12-03 | 2009-06-25 | Toyota Central R&D Labs Inc | ナノ構造材料の製造方法 |
KR100968803B1 (ko) * | 2008-06-24 | 2010-07-08 | 주식회사 티씨케이 | 폴리카르보실란 및 그 제조방법 |
US7910082B2 (en) * | 2008-08-13 | 2011-03-22 | Corning Incorporated | Synthesis of ordered mesoporous carbon-silicon nanocomposites |
JP5472446B2 (ja) * | 2010-03-18 | 2014-04-16 | 株式会社豊田中央研究所 | ナノヘテロ構造体およびその製造方法 |
DE102010050900A1 (de) * | 2010-11-10 | 2012-05-10 | Esk Ceramics Gmbh & Co. Kg | Bornitrid-Agglomerate, Verfahren zu deren Herstellung und deren Verwendung |
US8822360B2 (en) | 2012-01-18 | 2014-09-02 | United Technologies Corporation | Article including ceramic structure |
US9012823B2 (en) * | 2012-07-31 | 2015-04-21 | Raytheon Company | Vehicle having a nanocomposite optical ceramic dome |
CN103204481B (zh) * | 2013-04-17 | 2015-02-04 | 河北工业大学 | 一种用于水处理的活性氮化硼的合成方法 |
US10093584B2 (en) | 2014-07-08 | 2018-10-09 | Kansas State University Research Foundation | Silicon-based polymer-derived ceramic composites comprising H-BN nanosheets |
US11097986B2 (en) | 2015-05-29 | 2021-08-24 | Raytheon Technologies Corporation | Preceramic ionic systems |
US20160347670A1 (en) * | 2015-05-29 | 2016-12-01 | United Technologies Corporation | Preceramic ionic systems |
JPWO2018079744A1 (ja) * | 2016-10-27 | 2019-06-24 | 東亞合成株式会社 | 酸窒化ケイ素系材料及びその製造方法 |
CN106866976B (zh) * | 2017-03-08 | 2019-10-18 | 袁钦 | 一种对聚碳硅烷合成中液态副产物回收利用的方法 |
CN107244917A (zh) * | 2017-05-25 | 2017-10-13 | 中国科学院上海硅酸盐研究所 | 一种低粘度液态ZrC‑SiC前驱体及其制备方法和应用 |
CN108358656A (zh) * | 2018-02-02 | 2018-08-03 | 响水华夏特材科技发展有限公司 | 一种高孔隙率纳米孔SiCN陶瓷材料及其制备方法 |
EP3647298A1 (en) * | 2018-10-29 | 2020-05-06 | United Technologies Corporation | Preceramic ionic systems |
JP2020102525A (ja) * | 2018-12-21 | 2020-07-02 | メルク、パテント、ゲゼルシャフト、ミット、ベシュレンクテル、ハフツングMerck Patent GmbH | ブロックコポリマーを含んでなるシリカ質膜形成組成物、およびそれを用いたシリカ質膜の製造方法 |
WO2021050632A2 (en) * | 2019-09-13 | 2021-03-18 | Kansas State University Research Foundation | Polymer-derived ceramic fibers and methods of preparing the same |
CN115806435B (zh) * | 2023-02-09 | 2023-06-16 | 山东工业陶瓷研究设计院有限公司 | 一种氮化硼粉体制备方法 |
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