【摘要】：本文以雙酚A型環(huán)氧樹脂(EP)為基體,利用酸化處理的多壁碳納米管(C-MWNTs)及有機(jī)化蒙脫土(O-MMT)共同對(duì)環(huán)氧樹脂進(jìn)行改性,并采用溶液共混法制備EP/C-MWNTs/O-MMT復(fù)合材料。用FT-IR及SEM對(duì)處理前后的碳納米管及蒙脫土進(jìn)行表征,并對(duì)所制備的復(fù)合材料介電性能進(jìn)行測(cè)試,分析并探求碳納米管摻雜量對(duì)EP/C-MWNTs/O-MMT復(fù)合材料介電性能的影響。測(cè)試結(jié)果表明,加入少量C-MWNTs及適量O-MMT的EP/CMWNTs/O-MMT復(fù)合材料的體積電阻率與未改性EP相比僅下降了1個(gè)數(shù)量級(jí),同時(shí)其擊穿場(chǎng)強(qiáng)稍有提高;納米組分與環(huán)氧樹脂基體形成的界面對(duì)偶極極化有一定的抑制作用,可降低改性后EP復(fù)合材料的介電常數(shù),當(dāng)O-MMT摻雜量為6.0wt%、C-MWNTs摻雜量為0.3 wt%時(shí)復(fù)合材料的介電常數(shù)可降至2.9,而復(fù)合材料的介電損耗并無明顯變化。
[Abstract]:In this paper, epoxy resin was modified by acidified multi-walled carbon nanotubes (C-MWNTs) and organic montmorillonite (O-MMT) based on bisphenol A epoxy resin (EP), and EP/ C-MWNTsp-O-MMT composites were prepared by solution blending method. Carbon nanotubes and montmorillonite before and after treatment were characterized by FT-IR and SEM. The dielectric properties of the composites were tested, and the effect of carbon nanotubes doping on the dielectric properties of EPC-MWNTs / O-MMT composites was investigated. The results show that the volume resistivity of EPP-CMWNTs / O-MMT composites with a small amount of C-MWNTs and O-MMT is only one order of magnitude lower than that of unmodified EP, and the breakdown field strength is slightly increased. The interfacial polarization between nano-component and epoxy resin matrix can be inhibited to some extent, and the dielectric constant of modified EP composites can be reduced. When the doping amount of O-MMT is 6.0 wtand the doping amount of C-MWNTs is 0.3 wt%, the dielectric constant of the composites can be reduced to 2.9, but the dielectric loss of the composites does not change obviously.
【作者單位】： 電介質(zhì)工程教育部重點(diǎn)實(shí)驗(yàn)室哈爾濱理工大學(xué);哈爾濱理工大學(xué)材料科學(xué)與工程學(xué)院;上海英鶴化工有限公司;
【基金】：黑龍江省電介質(zhì)工程國家重點(diǎn)實(shí)驗(yàn)室資助項(xiàng)目
【分類號(hào)】：TB33

【參考文獻(xiàn)】

相關(guān)期刊論文 前8條

1 王旗;李U，

本文編號(hào)：2123555