表層氟化環(huán)氧樹脂的表面電導(dǎo)率和吸水性
發(fā)布時間:2018-09-11 15:02
【摘要】:為了抑制環(huán)氧樹脂的表面電荷積累,采用氟/氮混合氣對環(huán)氧樹脂試樣進行不同時間(10 min、30 min和60 min)的表面氟化處理,然后對樹脂進行全反射紅外分析,對電學(xué)性能、表面電位衰減特性、吸水性、接觸角和濕熱老化性能進行測試。結(jié)果表明:氟化導(dǎo)致環(huán)氧試樣表層的化學(xué)組成和結(jié)構(gòu)發(fā)生了變化,氟化的環(huán)氧樹脂試樣的表面電導(dǎo)率提高了3~4個數(shù)量級;隨著氟化時間的延長,表面電導(dǎo)率呈先增后降的趨勢,并于室溫下分別約在419 s,986 s和1 296 s內(nèi)衰減為零;氟化試樣的吸水率顯著降低,氟化層明顯發(fā)生了水解。
[Abstract]:In order to restrain the surface charge accumulation of epoxy resin, fluorine / nitrogen mixture was used to treat the surface of epoxy resin samples for different time (10 min,30 min and 60 min). Surface potential attenuation, water absorption, contact angle and hygrothermal aging performance were tested. The results showed that the chemical composition and structure of the surface layer of epoxy resin samples were changed due to fluorination, and the surface conductivity of fluorinated epoxy resin samples increased by 3 ~ 4 orders of magnitude, and the surface conductivity increased first and then decreased with the prolongation of fluorination time. At room temperature, the water absorption of fluorinated samples decreased to zero in 419 s ~ 986s and 1 296 s, respectively, and the hydrolysis of fluorinated layer took place obviously.
【作者單位】: 商丘師范學(xué)院物理與電氣信息學(xué)院;同濟大學(xué)電氣工程系;
【基金】:國家自然科學(xué)基金項目(51277132)
【分類號】:TM215.1
本文編號:2237036
[Abstract]:In order to restrain the surface charge accumulation of epoxy resin, fluorine / nitrogen mixture was used to treat the surface of epoxy resin samples for different time (10 min,30 min and 60 min). Surface potential attenuation, water absorption, contact angle and hygrothermal aging performance were tested. The results showed that the chemical composition and structure of the surface layer of epoxy resin samples were changed due to fluorination, and the surface conductivity of fluorinated epoxy resin samples increased by 3 ~ 4 orders of magnitude, and the surface conductivity increased first and then decreased with the prolongation of fluorination time. At room temperature, the water absorption of fluorinated samples decreased to zero in 419 s ~ 986s and 1 296 s, respectively, and the hydrolysis of fluorinated layer took place obviously.
【作者單位】: 商丘師范學(xué)院物理與電氣信息學(xué)院;同濟大學(xué)電氣工程系;
【基金】:國家自然科學(xué)基金項目(51277132)
【分類號】:TM215.1
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