CAJ | 학술논문

CNT的准一维中空特性和优异的长径比让其成为优异的导热材料。利用酸化的多壁碳纳米管,分别采用原位聚合和粉末冶金的方法制备 MWC-NTs/聚甲基丙烯酸甲酯(PMMA ),MWCNTs/铜(Cu),以及MWCNTs/Cu/PMMA复合样品。实验结果表明,1.3%(质量分数) MWCNTs/PMMA 和1.3%(质量分数)MWCNTs/1.3%(质量分数)Cu/P MMA相比纯 P MMA 的导热率分别提高8%和29.14%；2%(体积分数)MWCNTs/Cu 相比纯 Cu 的导热率提高8.47%。利用 SEM图观察到 MWCNTs分散在基底中,并从Raman 光谱得到 MWCNTs 的 G带和D带峰。
CNT적준일유중공특성화우이적장경비양기성위우이적도열재료。이용산화적다벽탄납미관,분별채용원위취합화분말야금적방법제비 MWC-NTs/취갑기병희산갑지(PMMA ),MWCNTs/동(Cu),이급MWCNTs/Cu/PMMA복합양품。실험결과표명,1.3%(질량분수) MWCNTs/PMMA 화1.3%(질량분수)MWCNTs/1.3%(질량분수)Cu/P MMA상비순 P MMA 적도열솔분별제고8%화29.14%；2%(체적분수)MWCNTs/Cu 상비순 Cu 적도열솔제고8.47%。이용 SEM도관찰도 MWCNTs분산재기저중,병종Raman 광보득도 MWCNTs 적 G대화D대봉。
CNT has the advantages of quasi-one-dimensional hollow and excellent aspect ratio,which makes it a kind of superexcellent thermal conductivity material.In this paper,MWCNTs/poly (methyl methacrylate) (PMMA),MWCNTs/copper (Cu),and MWCNTs/Cu/PMMA composites were prepared by in-situ polymeri-zation and powder metallurgy method respectively.Experimental results show that:the thermal conductivity of the 1.3wt% MWCNTs/PMMA and the 1.3wt% MWCNTs/1.3wt% Cu/PMMA composites increases by 8%and 29.14% compared to the pure PMMA respectively;the 2vol% MWCNTs/Cu enhances the thermal conduc-tivity by 8.47% compared to the pure Cu;SEM figures show MWCNTs are dispersed in the substrates and G band and D band were obtained from the Raman spectrum.