JP6493642B1 - 蓄熱粒子、恒温デバイス用組成物および恒温デバイス - Google Patents
蓄熱粒子、恒温デバイス用組成物および恒温デバイス Download PDFInfo
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Abstract
Description
図1に、実施形態にかかる蓄熱粒子100の模式図を示す。ただし、図1は、蓄熱粒子100の断面を示している。
(a)0.70≦y≦0.98、かつ、z=0
(b)0.70≦y≦1.1、かつ、0.005≦z≦0.15
本実施形態の恒温デバイス用組成物(冷却デバイス用組成物)は、樹脂に、蓄熱粒子100を含有させたものからなる。
本実施形態の恒温デバイス(冷却デバイス)は、上述した本実施形態の恒温デバイス用組成物(冷却デバイス用組成物)を使用して作製されたものからなる。
セラミック原料として、三酸化バナジウム(V2O3)、五酸化バナジウム(V2 O5)、酸化タングステンを用い、これらをV:W:O=0.985:0.015:2(モル比)となるように秤量し、乾式混合した。次に、窒素/水素/水雰囲気下で、950℃、4時間熱処理し、V0.985W0.015O2のセラミック粒子を得た。得られたセラミック粒子の粒径を、レーザー 回折測定 装置(マイクロトラック法・散乱法)で測定したところ、D50が40μmであった。
得られたセラミック粒子を、チャンバー圧力が0.5Pa〜1.0PaになるようにArガスが満たされたチャンバー内に投入し、所定の電力による放電でガスをプラズマ化することでスパッタリング成膜を行った。その際、セラミック粒子をバレルの駆動機構により攪拌し、スパッタ粒子に対して常に新しいセラミック粒子表面を出すように運動させてバレルスパッタリングを行うことにより、厚さ20nm前後の金属または酸化物で被覆し、実施例または比較例の試料とした。ただし、比較例1-3については、被膜を形成せず、上述したセラミック粒子を、そのまま比較例の試料とした。
実施例の蓄熱粒子および比較例の蓄熱粒子、それぞれについて、DSC(示差走査熱量測定)法により、初期の蓄熱量を測定した。具体的には、窒素雰囲気中において、10K/分の昇温速度で、0℃から100℃に加熱し、そして0℃へと掃引して、昇温時の吸熱量を蓄熱量とした。
Claims (9)
- バナジウム酸化物を主成分とするセラミック粒子と、前記セラミック粒子を被覆する金属被膜と、を備えた蓄熱粒子。
- 前記金属被膜の主成分がNiである、請求項1に記載された蓄熱粒子。
- 前記金属被膜の厚みが、5nm以上、5μm以下である、請求項1または2に記載された蓄熱粒子。
- 前記バナジウム酸化物が、式:V1−xMxO2で表される1種またはそれ以上のバナジウム酸化物であり、式中、
Mは、W、Ta、MoまたはNbであり、
Xは、0以上、0.05以下である、請求項1ないし3のいずれか1項に記載された蓄熱粒子。 - Xが、0以上、0.03以下である、請求項4に記載された蓄熱粒子。
- 樹脂と、前記樹脂に含有された請求項1ないし5のいずれか1項に記載された蓄熱粒子と、を備えた恒温デバイス用組成物。
- 前記蓄熱粒子の含有量が、2体積%以上、60体積%以下である、請求項6に記載された恒温デバイス用組成物。
- 請求項6または7に記載された恒温デバイス用組成物を使用して作製された、恒温デバイス。
- シート状に成形された、請求項8に記載された恒温デバイス。
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JP2017147268 | 2017-07-29 | ||
JP2017147268 | 2017-07-29 | ||
PCT/JP2018/028160 WO2019026773A1 (ja) | 2017-07-29 | 2018-07-26 | 蓄熱粒子、恒温デバイス用組成物および恒温デバイス |
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JP6493642B1 true JP6493642B1 (ja) | 2019-04-03 |
JPWO2019026773A1 JPWO2019026773A1 (ja) | 2019-08-08 |
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US (1) | US20200002590A1 (ja) |
JP (1) | JP6493642B1 (ja) |
CN (1) | CN110382657A (ja) |
WO (1) | WO2019026773A1 (ja) |
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WO2020195956A1 (ja) * | 2019-03-27 | 2020-10-01 | パナソニックIpマネジメント株式会社 | 断熱部材、及び電子機器 |
WO2021230357A1 (ja) | 2020-05-14 | 2021-11-18 | 国立研究開発法人産業技術総合研究所 | 熱伝導率を調整した固体蓄熱材料および複合体 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH1123172A (ja) * | 1997-06-30 | 1999-01-26 | Kedeika:Kk | 潜熱蓄熱カプセル |
JP2002162182A (ja) * | 2000-11-27 | 2002-06-07 | National Institute Of Advanced Industrial & Technology | 蓄熱体およびその製造方法 |
US20080272331A1 (en) * | 2006-08-21 | 2008-11-06 | Mohapatra Satish C | Hybrid nanoparticles |
JP2010163510A (ja) * | 2009-01-14 | 2010-07-29 | Institute Of Physical & Chemical Research | 蓄熱材 |
WO2015087620A1 (ja) * | 2013-12-11 | 2015-06-18 | 富士高分子工業株式会社 | 蓄熱性組成物 |
JP2017065984A (ja) * | 2015-09-30 | 2017-04-06 | 株式会社村田製作所 | セラミック粒子 |
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IT567854A (ja) * | 1956-04-11 | |||
US3920410A (en) * | 1971-04-28 | 1975-11-18 | Sherritt Gordon Mines Ltd | Cobalt coated composite powder |
CN103978203B (zh) * | 2014-04-30 | 2016-06-08 | 中国科学院广州能源研究所 | 一种光谱局域修饰的热色纳米复合粉体及其制备方法 |
WO2016009760A1 (ja) * | 2014-07-17 | 2016-01-21 | 株式会社村田製作所 | セラミック材料 |
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2018
- 2018-07-26 CN CN201880015895.2A patent/CN110382657A/zh not_active Withdrawn
- 2018-07-26 JP JP2018560926A patent/JP6493642B1/ja active Active
- 2018-07-26 WO PCT/JP2018/028160 patent/WO2019026773A1/ja active Application Filing
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- 2019-08-07 US US16/534,278 patent/US20200002590A1/en not_active Abandoned
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1123172A (ja) * | 1997-06-30 | 1999-01-26 | Kedeika:Kk | 潜熱蓄熱カプセル |
JP2002162182A (ja) * | 2000-11-27 | 2002-06-07 | National Institute Of Advanced Industrial & Technology | 蓄熱体およびその製造方法 |
US20080272331A1 (en) * | 2006-08-21 | 2008-11-06 | Mohapatra Satish C | Hybrid nanoparticles |
JP2010163510A (ja) * | 2009-01-14 | 2010-07-29 | Institute Of Physical & Chemical Research | 蓄熱材 |
WO2015087620A1 (ja) * | 2013-12-11 | 2015-06-18 | 富士高分子工業株式会社 | 蓄熱性組成物 |
JP2017065984A (ja) * | 2015-09-30 | 2017-04-06 | 株式会社村田製作所 | セラミック粒子 |
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US20200002590A1 (en) | 2020-01-02 |
JPWO2019026773A1 (ja) | 2019-08-08 |
CN110382657A (zh) | 2019-10-25 |
WO2019026773A1 (ja) | 2019-02-07 |
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