本文選題：靜電紡絲　切入點(diǎn)：SiCN納米纖維　出處：《東北師范大學(xué)》2010年碩士論文

【摘要】： 靜電紡絲技術(shù)是制備納米纖維材料的主要方法之一,最近越來越多的研究人員將這種方法應(yīng)用在陶瓷材料的制備方面,陶瓷材料具有質(zhì)量輕,熱穩(wěn)定性好,高溫耐熱,導(dǎo)電率低等優(yōu)秀特質(zhì),在石油化工和冶金陶瓷等領(lǐng)域都都有非常重要的應(yīng)用,因此研究陶瓷材料具有非常重要的意義。 盡管現(xiàn)在有多種合成納米纖維的方法,但靜電紡絲技術(shù)是最為通用的方式。聚合物、復(fù)合物、陶瓷材料、金屬納米纖維都已通過靜電紡絲法或再經(jīng)過高溫煅燒制備成功。因此靜電紡絲技術(shù)被認(rèn)為是合成聚合物納米纖維的一種非常有效的技術(shù)。近年來,多種聚合物已成功被靜電紡絲成極為細(xì)小的纖維,其中大部分是溶解在溶液中,也包括少部分為熔融狀態(tài)。 本論文采用靜電紡絲技術(shù),以不同質(zhì)量比的聚硅氮烷聚和乙烯吡咯烷酮(PVP)為原料制備了一系列納米纖維材料,并采用高溫煅燒(1100 oC)的方法獲得了一系列SiCN陶瓷材料(樣品1-4)。我們對(duì)該陶瓷材料樣品進(jìn)行了IR,XRD和XPS表征,研究表明樣品中含有的主要元素是Si,C,N,O元素,而且樣品是非晶態(tài)的。由于反應(yīng)原料質(zhì)量比的不同,樣品1中主要含有Si-C,C-N, Si-N, C=C和O-H鍵,樣品2中主要含有Si-C,C-N, Si-N和O-H鍵,樣品3中含有C-N, Si-N和O-H鍵,樣品4中主要含有C-N, Si-N和O-H鍵。而且,我們還利用掃描電鏡技術(shù)對(duì)SiCN陶瓷納米纖維材料的形貌進(jìn)行了進(jìn)一步研究。
[Abstract]:Electrospinning is one of the main methods for preparing nanofiber materials. Recently, more and more researchers have applied this method to the preparation of ceramic materials. Ceramic materials have light weight, good thermal stability, high temperature and heat resistance.The excellent properties of low conductivity are very important in petrochemical and metallurgical ceramics and so on, so it is of great significance to study ceramic materials.Although there are many ways to synthesize nanofibers, electrostatic spinning is the most common way.Polymers, composites, ceramic materials and metal nanofibers have been prepared by electrospinning or calcination at high temperature.Therefore, electrostatic spinning technology is considered to be a very effective technology for the synthesis of polymer nanofibers.In recent years, many polymers have been successfully electrospun into extremely fine fibers, most of which are dissolved in solution and a few are melt.In this paper, a series of nano-fiber materials were prepared by electrospinning with polysiloxane and vinylpyrrolidone as raw materials, and a series of SiCN ceramic materials (sample 1-4) were obtained by high temperature calcination.The samples were characterized by IR and XPS. The results show that the main elements in the samples are SICP N2O and the samples are amorphous.Because of the different mass ratio of raw materials, sample 1 mainly contains Si-Cn C-N, Si-N, Con C and O-H bonds, sample 2 mainly contains Si-Cn C-N, Si-N and O-H bonds, sample 3 mainly contains C-N, Si-N and O-H bonds, and sample 4 mainly contains C-N, Si-N and O-H bonds.Furthermore, the morphology of SiCN ceramic nanofibers was further studied by scanning electron microscopy (SEM).
【學(xué)位授予單位】：東北師范大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2010
【分類號(hào)】：TB383.1

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本文編號(hào)：1719260