本文選題：納米AlN + 環(huán)氧樹脂��； 參考：《電工技術(shù)學報》2017年07期

【摘要】：聚合物納米復合材料因其優(yōu)良的電氣絕緣性能在電介質(zhì)絕緣領(lǐng)域得到了廣泛應用。為了獲得性能優(yōu)良的環(huán)氧樹脂絕緣材料,將采用硅烷偶聯(lián)劑進行表面處理后的納米Al N顆粒加入環(huán)氧樹脂絕緣材料中,采用溶液共混法制備了Al N質(zhì)量分數(shù)分別為0%、0.5%、1%、3%、5%、7%的Al N/環(huán)氧樹脂復合材料,研究了不同Al N質(zhì)量分數(shù)對Al N/環(huán)氧樹脂復合材料絕緣性能的影響。結(jié)果表明,樹脂基體和Al N填料之間實現(xiàn)了有效的結(jié)合,提高了環(huán)氧樹脂的熱穩(wěn)定性;Al N的加入一定程度上減小了復合材料的體積電阻率,并且增大了復合材料的介質(zhì)損耗因數(shù),但對復合材料電氣絕緣性能的影響較小;當納米Al N顆粒質(zhì)量分數(shù)為3%時,Al N/環(huán)氧樹脂復合材料的交流擊穿電場強度最大。因此,添加適量納米Al N顆粒能夠提高干式變壓器環(huán)氧樹脂的電氣絕緣性能。
[Abstract]:Polymer nanocomposites have been widely used in dielectric insulation due to their excellent electrical insulation properties. In order to obtain epoxy resin insulation material with excellent properties, nano-Al N particles after surface treatment with silane coupling agent were added to epoxy resin insulation material. The Al N / epoxy resin composites with a mass fraction of 0 0. 5% Al N and 5% Al N / epoxy resin were prepared by solution blending method. The effects of different Al N mass fraction on the insulation properties of Al N / epoxy resin composites were studied. The results show that the effective bonding between resin matrix and Al N filler can be realized, and the thermal stability of epoxy resin and the addition of Al N can decrease the volume resistivity of the composite to a certain extent. The dielectric loss factor of the composite is increased, but the influence on the electrical insulation of the composite is small, and when the mass fraction of nano-Al N particles is 3, the AC breakdown electric field strength of the composite is the largest. Therefore, the electrical insulation properties of epoxy resin of dry transformer can be improved by adding proper amount of nano Al N particles.
【作者單位】： 輸配電裝備及系統(tǒng)安全與新技術(shù)國家重點實驗室(重慶大學);廣州供電局電力試驗研究院;
【基金】：國家創(chuàng)新研究群體基金(51321063) 廣州供電局科技項目(K-GZM2014-028)資助
【分類號】：TM215.1

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本文編號：1861836