TWI414572B - 奈米材料於次電子絕緣塗料之用途 - Google Patents
奈米材料於次電子絕緣塗料之用途 Download PDFInfo
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Description
本發明係關於電磁裝置,且更特別係關於奈米材料在用於此等裝置之絕緣塗料中的用途。
有機樹脂組合物因能賦予電磁裝置機械阻力、電阻及環境阻力而被用作塗料。該等塗料可為裝置之經改良長期耐久性提供機械強度、電絕緣及環境保護,且提高最終產品之品質。此等有益性質之一些可藉由添加諸如氧化矽、碳酸鈣、氧化鋁等無機填充劑來改良。然而,此項技術之當前狀態存在的問題為用於塗料之無機材料無法一直保持懸浮於塗料中,因而導致非均勻混合物。當將塗料塗覆於裝置時,會形成薄弱區域,此從而會導致裝置故障。
此項技術之此當前狀態引起若干與塗覆處理、其攪拌(以便在塗覆前產生均勻性)及其泵抽相關的各項問題及對塗覆之液體及所得之固化膜之均勻性的顧慮。用於解決此等問題之先前方法乃集中於使用烟薫氧化矽(fumed silica)及作為該無機材料之懸浮劑之其他材料。但在某些情況下,由於發生流變學變化且導致所塗覆塗料之不一致性,因此使用此等試劑會產生不良結果。
本發明係關於利用奈米材料之障壁特性效應來改良電磁裝置之絕緣電阻及腐蝕保護的塗料,此塗料不會有上述不均勻性問題。此等有益效應乃以在塗料樹脂中裝載1-20%重量份及較佳1-5%重量份的奈米材料而實現。所用材料包括(但不限於):氧化矽、氧化鋁、氧化鋯及五氧化銻。此等材料直接分散於塗料中或預分散於適於欲改質之樹脂系統之溶劑的載劑中。所得調配物受益於下列事實:不需將防沉劑併入混合物中以使無機材料於塗料中保持懸浮。另一益處為樹脂系統之流變學並不顯著改變(否則此將影響樹脂在其預定應用中之處理)。
其他目的及特徵有一部分可在下文中自然明白而有一部分將予以特別指出。
下列詳細描述以實例說明本發明而不限制本發明。此描述將清楚地使熟習此項技術者能製造且使用本發明,且描述本發明之若干實施例、調整、變化、替代及用途,包括目前吾人咸信為進行本發明之最佳模式。由於可對以上構造進行各種改變而不偏離本發明之範疇,因此希望以上描述中所含或隨附圖式中所示之所有內容應以例示性解釋而不以限制性意義解釋。
根據本發明,利用奈米材料之障壁特性效應來改良經併有該等奈米材料之塗料樹脂所塗覆之電磁裝置的絕緣電阻及腐蝕保護性質,而同時避免先前所討論之均勻性問題。為達成此等所要結果,使用1-150奈米範圍內之無機材料調配塗覆於裝置之塗料樹脂。比較而言,此項技術當前狀態填充系統中之無機微粒的尺寸為3000-4500奈米級。合適之化學通常為環氧樹脂及環氧樹脂與聚酯的共聚物。其他合適之化學包括(但不限於):不飽和聚酯、環氧樹脂、胺基甲酸酯、水基聚酯、環氧樹脂乳液、有機溶劑基醇酸樹脂、丙烯酸酯化胺基甲酸酯、丙烯酸酯化環氧樹脂、丙烯酸酯化多元醇及丙烯酸酯化植物油。該等環氧樹脂包括基於雙酚A、雙酚F、酚醛清漆及環脂族環氧樹脂之環氧樹脂。使用樹脂之1-20%重量份之間及較佳1-5%重量份之間的奈米材料之奈米材料裝載達成所要效應。奈米材料包括(但不限於):氧化矽、氧化鋁、氧化鋯及五氧化銻。熟習此項技術者應瞭解所得塗料可藉由包括適當量之奈米材料或奈米材料組合經特製以滿足裝置之特定效能要求。本發明塗料之一重要優點為樹脂系統之流變學不顯著改變;儘管在某種情況下,所得混合物之黏度有所增加。但總體而言,樹脂之預定應用之處理未受重大影響。
就奈米材料之用途而言,奈米材料之小粒度意謂給定量之材料於樹脂中的分佈越平均,製造出的路徑越曲折,腐蝕劑越難以滲透該路徑。另外,相互緊鄰之微粒促進任何電荷之耗散,藉此獲得裝置之經改良電性質。
自使用奈米材料所得之障壁效應在根據本發明製造之塗料中產生顯著結果。舉例而言,即使使用較少量之無機奈米材料製造使用其他無機填充材料之塗料,上述經改良電阻及耐腐蝕性仍出現。又,即使於塗料中使用較少量之無機奈米材料,該等塗料亦具有經改良之耐磨性。第三,某些新型塗料之黏度可低於當前塗料。所有此等特徵均用於為塗料之處理選擇提供更大的靈活性,同時得到完成裝置之所要效能特徵。
在製備期間,將奈米材料直接分散於塗料中。或,另外地,將奈米材料預分散於適於欲改質之樹脂系統之溶劑的載劑中。所得調配物之顯著優點為不需將諸如煙霧狀氧化矽等防沉劑或懸浮劑添加至所得溶液中以使奈米材料於其中保持懸浮。第二個優點為獲得塗料混合物之均勻性,且該均勻性以相較於具有無機填充劑之習知塗層所需攪拌之最小量的攪拌來維持。
經奈米材料改質之有機塗料使用與當前此行業中所用之方法相同的方法來塗覆。此等方法包括(但不限於):浸漬及烘烤、噴淋、真空/壓力浸漬、滾塗、噴塗及真空浸漬。此外,使用當前可用之方法固化根據本發明製造之塗料,該等方法諸如燃氣爐、電阻加熱、紅外輻射加熱、化學催化及紫外(UV)輻射固化。不管塗覆方法,由於無機奈米材料具有比習知塗料中所用無機填充材料小的粒度,因此併入奈米材料之塗料更容易流入所塗覆之電磁裝置區域中。此外,就UV固化方法而言,已發現根據本發明製造之塗料顯示出經改良之光學透明度。此有利於現因當前塗料中有機填充劑的存在而無法使用的UV誘導固化法的使用。
下列討論參看表1及表2。
參看表1,標準填充不飽和聚酯(UPE)塗料藉由使用高速分散法將30重量份(pbw)氧化矽分散於70 pbw UPE樹脂中直至所得混合物均勻來製備。此外,製備兩個奈米改質之UPE樣本。表1中稱作系統I之第一樣本藉由將1 pbw奈米材料添加至99 pbw UPE樹脂中接著混合直至分散來製備。表1中稱作系統II之第二樣本藉由將3 pbw奈米材料添加至97 pbw UPE樹脂中且亦混合直至充分分散來製備。
參看表2,表中稱作系統III之奈米改質之水基聚酯(WBPE)藉由將3 pbw奈米材料添加至97 pbw WBPE中且混合直至充分分散來製備。該系統之WBPE組份包含預分散於水中之氧化鋁。
代表性調配物之物理性質列於表3中。
調配物實例之測試結果列於表4及表5中,其中對於腐蝕而言,1-10之腐蝕及沉澱等級係基於1為最差且10為最佳。
鑒於上文可見,已實現本發明之若干目的及優點且已獲得其他有利結果。
Claims (13)
- 一種製造儲存安定性液態塗料組成物之方法,該儲存安定液體塗料組成物係用於電磁裝置以改良該裝置之絕緣電阻及腐蝕保護性質,該方法包含:使用液態、熱固性樹脂材料調配塗料樹脂;藉由下列步驟形成懸浮於該液態樹脂材料中之奈米材料懸浮液:(1)將以具有介於1至150奈米間粒徑之無機材料重量計之1至20%重量份之該奈米材料添加至該樹脂材料中;及(2)藉由混合該液態樹脂材料及該無機材料,以將該無機材料機械式分散於該液態樹脂材料中,從而獲得均勻液態塗料混合物;該液態塗料混合物不具有抗沉降劑;及以液態及實質均勻懸浮液形式儲存該液態塗料組成物,直至將其施用於基材上以於該基材上形成塗料。
- 如請求項1之方法,其中將1-5%重量份之間的無機材料分散至該樹脂材料中。
- 如請求項2之方法,其中該無機材料包含氧化矽、氧化鋁、氧化鋯或五氧化銻中之一者。
- 如請求項3之方法,其中該樹脂材料為填充不飽和聚酯(UPE)塗料材料。
- 如請求項4之方法,其中該樹脂材料為水基聚酯(WBPE)塗料材料。
- 如請求項1之方法,其中將該無機材料直接分散於該樹脂材料中。
- 如請求項1之方法,其中將該無機材料預分散於適於該樹脂材料之載劑中,其中該樹脂材料與該無機材料混合。
- 一種製造儲存安定性液態塗料組成物之方法,該組成物係用於電磁裝置以改良該裝置之絕緣電阻及腐蝕保護性質,該方法包含:於液態熱固性樹脂組成物中形成無機材料懸浮液;該無機材料具有在1至150奈米之範圍間之粒徑;將該無機材料添加至該液態熱固性樹脂中,並將該無機材料機械式分散於該液態熱固性樹脂組成物中,直至該無機材料均勻的分散於該液態熱固性樹脂組成物中;該無機材料具有以該液態熱固性樹脂組成物重量計之1至20%重量份;該無機材料係選自氧化矽、氧化鋁、氧化鋯或五氧化銻中之一者;該液態塗料混合物不具有抗沉降劑;藉此方法所形成之塗料具有大於3000vpm之介電強度;及以液態及實質均勻懸浮液形式儲存該液態塗料組成物,直至將其施用於基材上以於該基材上形成塗料層前。
- 如請求項8之方法,其中將1-5%重量份之間的無機材料分散至該樹脂材料中。
- 如請求項8之方法,其中該樹脂組成物為聚酯材料。
- 如請求項10之方法,其中該聚酯材料係自於由水基聚酯 (WBPE)塗料材料及填充不飽和聚酯(UPE)塗料材料所組成之群組。
- 一種增加樹脂基底之塗料組成物之電阻之方法,該方法包含:於液態熱固性樹脂組成物中形成奈米材料懸浮液,其藉由添加無機材料至該液態熱固性樹脂組成物中並將該無機材料機械式分散於該液態熱固性樹脂組成物中,直至該無機材料均勻的分散於該樹脂組成物中;該無機材料具有以該樹脂組成物重量計之1至20%重量份;該無機材料具有1至150奈米範圍間之粒徑,並係選自由氧化矽、氧化鋁、氧化鋯或五氧化銻中組成之群組;該懸浮液不具有抗沉降劑;藉此方法所形成之塗料混合物具有大於3000vpm之介電強度;及以液態及實質均勻懸浮液形式儲存該液態塗料組成物,直至將其施用於基材上以於該基材上形成塗料層。
- 如請求項12之方法,其中該儲存安定性液態塗料組成物具有小於500cP之黏度。
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EP (1) | EP1940933A1 (zh) |
CN (1) | CN101305039B (zh) |
AU (1) | AU2006303341B2 (zh) |
BR (1) | BRPI0617623A2 (zh) |
CA (1) | CA2626038C (zh) |
TW (1) | TWI414572B (zh) |
WO (1) | WO2007045633A1 (zh) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
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US7964236B2 (en) * | 2005-10-18 | 2011-06-21 | Elantas Pdg, Inc. | Use of nanomaterials in secondary electrical insulation coatings |
EP2283089B1 (en) * | 2008-05-27 | 2013-11-20 | Philips Intellectual Property & Standards GmbH | High-voltage generator with a rigid foam material |
DE102008048874A1 (de) * | 2008-09-25 | 2010-04-08 | Siemens Aktiengesellschaft | Beschichtungen für elektronische Schaltungen |
DE102009039457A1 (de) * | 2009-08-31 | 2011-03-03 | Siemens Aktiengesellschaft | Leitereinrichtung, elektrische Maschine sowie Traktionsmaschine |
DE102009053253A1 (de) * | 2009-11-09 | 2011-05-12 | Siemens Aktiengesellschaft | Tränkharz für Verbundisolatoren |
EP2521247A1 (de) * | 2011-05-06 | 2012-11-07 | Siemens Aktiengesellschaft | Elektrisches Glimmschutzsystem für eine Hochspannungsmaschine |
DE102011079489A1 (de) * | 2011-07-20 | 2013-01-24 | Siemens Aktiengesellschaft | Verfahren zum Herstellen eines Bandes für ein elektrisches Isolationssystem |
JP6271164B2 (ja) * | 2013-06-17 | 2018-01-31 | 日立オートモティブシステムズ株式会社 | 箱型車載制御装置 |
CN110183935A (zh) * | 2019-06-04 | 2019-08-30 | 上海电气输配电试验中心有限公司 | 环保气体中新型棒电极表面涂覆层制备工艺 |
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CN1437512A (zh) * | 1999-12-28 | 2003-08-20 | 阿尔斯托姆(瑞士)有限公司 | 通过粉末涂覆法制造导线绝缘的方法 |
US20040063813A1 (en) * | 2001-12-10 | 2004-04-01 | Bin Wu | Powder coating compositions containing reactive nanoparticles |
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US3697467A (en) * | 1969-11-03 | 1972-10-10 | Sherwin Williams Co | Aqueous dispersion of polycarboxylic acid resin with silica |
US3978018A (en) * | 1974-06-17 | 1976-08-31 | H. H. Robertson Company | Polymerizable compositions containing unsaturated polyester resins and aqueous alkali stabilized colloidal silica, method of preparing shaped articles from such compositions and thermoset products thereof |
DE2638047A1 (de) * | 1976-08-24 | 1978-03-02 | Robertson Co H H | Ungesaettigte plyesterharzmassen und ihre verwendung |
US4102851A (en) * | 1977-03-22 | 1978-07-25 | Westinghouse Electric Corp. | Alumina-thickened cycloaliphatic epoxy materials for use in atmospheres of arced sulfur hexafluoride and articles thereof |
US4760296A (en) * | 1979-07-30 | 1988-07-26 | General Electric Company | Corona-resistant insulation, electrical conductors covered therewith and dynamoelectric machines and transformers incorporating components of such insulated conductors |
DE4037972A1 (de) * | 1989-12-20 | 1991-06-27 | Asea Brown Boveri | Bauteil hoher elektrischer feldbelastbarkeit und langzeitstabilitaet fuer verwendung als isolierkoerper |
US6350493B1 (en) * | 1994-03-01 | 2002-02-26 | Lockheed Martin Corporation | Method of dispersing fibers in electromagnetic-attenuating coating materials |
HU224392B1 (hu) * | 1995-06-08 | 2005-08-29 | Phelps Dodge Industries, Inc. | Lökőfeszültséggel szemben ellenálló huzal |
US6265466B1 (en) * | 1999-02-12 | 2001-07-24 | Eikos, Inc. | Electromagnetic shielding composite comprising nanotubes |
DE19909954A1 (de) * | 1999-03-06 | 2000-09-28 | Herberts Gmbh & Co Kg | Beschichtungszusammensetzung für metallische Leiter und Beschichtungsverfahren unter deren Verwendung |
EP1387367B1 (en) * | 2001-01-29 | 2007-01-10 | JSR Corporation | Composite particle for dielectrics, ultramicroparticulate composite resin particle, composition for forming dielectrics and use thereof |
US6617377B2 (en) * | 2001-10-25 | 2003-09-09 | Cts Corporation | Resistive nanocomposite compositions |
US7381359B2 (en) * | 2004-10-14 | 2008-06-03 | Yazaki Corporation | Method for making filled epoxy resin compositions |
US7297370B2 (en) * | 2004-12-22 | 2007-11-20 | General Electric Company | Curable encapsulant composition, device including same, and associated method |
US7579397B2 (en) * | 2005-01-27 | 2009-08-25 | Rensselaer Polytechnic Institute | Nanostructured dielectric composite materials |
US7964236B2 (en) * | 2005-10-18 | 2011-06-21 | Elantas Pdg, Inc. | Use of nanomaterials in secondary electrical insulation coatings |
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2005
- 2005-10-18 US US11/252,921 patent/US7964236B2/en active Active
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2006
- 2006-10-16 BR BRPI0617623-2A patent/BRPI0617623A2/pt not_active Application Discontinuation
- 2006-10-16 CA CA2626038A patent/CA2626038C/en active Active
- 2006-10-16 WO PCT/EP2006/067451 patent/WO2007045633A1/en active Application Filing
- 2006-10-16 CN CN2006800414941A patent/CN101305039B/zh active Active
- 2006-10-16 EP EP06807306A patent/EP1940933A1/en not_active Ceased
- 2006-10-16 AU AU2006303341A patent/AU2006303341B2/en active Active
- 2006-10-18 TW TW095138465A patent/TWI414572B/zh active
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2007
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Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN1437512A (zh) * | 1999-12-28 | 2003-08-20 | 阿尔斯托姆(瑞士)有限公司 | 通过粉末涂覆法制造导线绝缘的方法 |
US20040063813A1 (en) * | 2001-12-10 | 2004-04-01 | Bin Wu | Powder coating compositions containing reactive nanoparticles |
Also Published As
Publication number | Publication date |
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US20070142526A1 (en) | 2007-06-21 |
AU2006303341A1 (en) | 2007-04-26 |
CA2626038A1 (en) | 2007-04-26 |
BRPI0617623A2 (pt) | 2011-08-02 |
US20070087116A1 (en) | 2007-04-19 |
TW200724622A (en) | 2007-07-01 |
CN101305039A (zh) | 2008-11-12 |
AU2006303341B2 (en) | 2011-12-01 |
EP1940933A1 (en) | 2008-07-09 |
CN101305039B (zh) | 2011-11-09 |
CA2626038C (en) | 2014-05-06 |
US7964236B2 (en) | 2011-06-21 |
WO2007045633A1 (en) | 2007-04-26 |
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