电子元件与材料
電子元件與材料
전자원건여재료
Electronic Components & Materials
2015年
11期
19-22
,共4页
曹冰%傅仁利%汤晔%张鹏飞%刘超
曹冰%傅仁利%湯曄%張鵬飛%劉超
조빙%부인리%탕엽%장붕비%류초
水热法%Al2O3ZnO%填充%pH%环氧树脂%热导率
水熱法%Al2O3ZnO%填充%pH%環氧樹脂%熱導率
수열법%Al2O3ZnO%전충%pH%배양수지%열도솔
hydrothermal method%Al2O3ZnO%fill%pH%epoxy resin%thermal conductivity
采用水热法在Al2O3颗粒表面包覆ZnO制备Al2O3@ZnO颗粒，并通过控制合成条件在Al2O3颗粒表面制备出了具有不同微观形貌的ZnO包覆层。还探讨了水热合成中生长液的pH值对ZnO的包覆层生长过程以及对ZnO包覆层生长形貌的影响，研究了Al2O3@ZnO颗粒填充环氧树脂对环氧基复合材料导热性能的影响。研究结果表明：随着pH的升高，ZnO包覆层的均匀性和致密性越好，即包覆的效果越好。Al2O3@ZnO颗粒表面ZnO的形态从颗粒状到星状最后到刺球状转变，随之填充 Al2O3@ZnO 颗粒的环氧基复合材料的热导率也逐渐提高。采用pH=10时所制备的Al2O3@ZnO颗粒填充环氧树脂，其热导率相对于未处理Al2O3填充的环氧树脂提高了10.3%。
採用水熱法在Al2O3顆粒錶麵包覆ZnO製備Al2O3@ZnO顆粒，併通過控製閤成條件在Al2O3顆粒錶麵製備齣瞭具有不同微觀形貌的ZnO包覆層。還探討瞭水熱閤成中生長液的pH值對ZnO的包覆層生長過程以及對ZnO包覆層生長形貌的影響，研究瞭Al2O3@ZnO顆粒填充環氧樹脂對環氧基複閤材料導熱性能的影響。研究結果錶明：隨著pH的升高，ZnO包覆層的均勻性和緻密性越好，即包覆的效果越好。Al2O3@ZnO顆粒錶麵ZnO的形態從顆粒狀到星狀最後到刺毬狀轉變，隨之填充 Al2O3@ZnO 顆粒的環氧基複閤材料的熱導率也逐漸提高。採用pH=10時所製備的Al2O3@ZnO顆粒填充環氧樹脂，其熱導率相對于未處理Al2O3填充的環氧樹脂提高瞭10.3%。
채용수열법재Al2O3과립표면포복ZnO제비Al2O3@ZnO과립，병통과공제합성조건재Al2O3과립표면제비출료구유불동미관형모적ZnO포복층。환탐토료수열합성중생장액적pH치대ZnO적포복층생장과정이급대ZnO포복층생장형모적영향，연구료Al2O3@ZnO과립전충배양수지대배양기복합재료도열성능적영향。연구결과표명：수착pH적승고，ZnO포복층적균균성화치밀성월호，즉포복적효과월호。Al2O3@ZnO과립표면ZnO적형태종과립상도성상최후도자구상전변，수지전충 Al2O3@ZnO 과립적배양기복합재료적열도솔야축점제고。채용pH=10시소제비적Al2O3@ZnO과립전충배양수지，기열도솔상대우미처리Al2O3전충적배양수지제고료10.3%。
ZnO was coated on the surface of Al2O3 by hydrothermal method to prepare Al2O3@ZnO while different microstructures of ZnO coating layer grew on it by controlling the synthesis conditions. This paper focused on the pH in the growth solution which had a great influence on the coating results and microstructure of ZnO coating layer, then the thermal conductivity of epoxy resin filled with Al2O3@ZnO was studied. The research results show that with the increase of pH, the homogeneity and compactness of the coating layer is better which mean the coating effects of ZnO on Al2O3 are better. The microstructure of ZnO on the surface of Al2O3@ZnO changes from globular to starlike and then hedgehog-like, meanwhile, the thermal conductivity of epoxy resin filled with Al2O3@ZnO is also improved and the result is best when the pH is 10, which is 10.3% better than that of the epoxy resin filled with untreated Al2O3.
