新型蜜胺基活性碳纤维的制备研究
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摘要
为寻求新型的活性碳纤维材料,以三聚氰胺、乙二醇和甲醛为原料,以三乙醇胺、聚乙烯醇为催化剂和调节剂,合成了蜜胺纺丝液,并采用干-湿法纺制蜜胺纤维,进一步通过800℃炭化处理制得蜜胺基活性碳纤维。通过SEM、TGA、TG-MS测试表明,所制备的蜜胺纤维具有表面光滑、缺陷少的特点,蜜胺纤维在386℃以内具有良好的热稳定性。XRD和氮吸附测试结果表明,直接炭化后制得的蜜胺基活性碳纤维的骨架结构为非晶型碳形态,孔道的分布主要集中在10nm以下,比表面积为577.8m~2·g~(-1)。本研究所合成的蜜胺基活性碳纤维具有较好的孔道结构和较大的比表面积,是比较好的吸附材料。
To improve performance of activated carbon fiber material,melamine,ethylene glycol and formaldehyde were selected as precursors,triethanolamine and poly vinyl alcohol were used as catalyst and regulator respectively,to synthesize melamine dope,and melamine fiber was obtained by dry-wet spinning method.Melamine-based activated carbon fiber was prepared after carbonization at 800 ℃.The analysis results of SEM,TGA,TG-MS suggest that the obtained melamine fiber had smooth surface,less defect and good thermal stability within 386 ℃.XRD and nitrogen adsorption characterization results show that the melamine-based activated carbon fiber featured with amorphous skeleton structure,microporous structure and larger specific surface area.Pore size distribution was mainly concentrated on under 10 nm,and the surface area of Melamine-based activated carbon was 577.8m~2·g~(-1).All results show that the melamine-based activated carbon fiber was an ideal adsorption material.
To improve performance of activated carbon fiber material,melamine,ethylene glycol and formaldehyde were selected as precursors,triethanolamine and poly vinyl alcohol were used as catalyst and regulator respectively,to synthesize melamine dope,and melamine fiber was obtained by dry-wet spinning method.Melamine-based activated carbon fiber was prepared after carbonization at 800 ℃.The analysis results of SEM,TGA,TG-MS suggest that the obtained melamine fiber had smooth surface,less defect and good thermal stability within 386 ℃.XRD and nitrogen adsorption characterization results show that the melamine-based activated carbon fiber featured with amorphous skeleton structure,microporous structure and larger specific surface area.Pore size distribution was mainly concentrated on under 10 nm,and the surface area of Melamine-based activated carbon was 577.8m~2·g~(-1).All results show that the melamine-based activated carbon fiber was an ideal adsorption material.
引文
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[12]徐樑华,吴红枚.PAN/DMSO干湿法纺丝凝固工艺的研究[J].高分子材料科学与工程,2000,16(6):163-166.
[13]张涛,金俊弘,杨胜林,等.新型PIPD纤维的制备与性能研究[J].科学通报,2010(19):1951-1956.
[14]艾艳玲,杨延清,王小宪.炭/炭复合材料石墨化度的XRD表征方法[J].煤炭转化,2009,32(1):72-74.
[15]TSENG R L,WU F C,JUANG R S.Adsorption of CO2at atmospheric pressure on activated carbons prepared from melamine-modified phenol-formaldehyde resins[J].Separation and Purification Technology,2015,140:53-60.
[2]杨骥,贾金平,廖黎燕.活性碳纤维在环境保护中的应用[J].环境化学,2006,25(3):273-276.
[3]梁英娟,罗湘南.粘胶基活性炭纤维及其应用研究现状[J].江苏化工,2007,35(4):6-8.
[4]张学军,沈曾民.沥青基活性碳纤维的制备[J].合成纤维,2000,29(3):29-31.
[5]顾小春,杨庙祥.酚醛活性碳纤维的制备及结构与性能的研究[J].上海纺织科技,1989(6):9-14.
[6]MA C,SONG Y,SHI J,et al.Preparation and electrochemical performance of heteroatom-enriched electrospun carbon nanofibers from melamine formaldehyde resin[J].Journal of colloid and interface science,2013,395:217-223.
[7]杭祖圣.三聚氰胺甲醛树脂纤维的工艺研究[D].南京:南京理工大学,2004.
[8]杨智渊,姜猛进,卢奎林,等.三聚氰胺甲醛纤维纺丝原液的稳定性[J].纺织学报,2007,28(11):5-8.
[9]LI L L,KANG Y Q,YANG Y G,et al.Structure and properties of melamine formaldehyde polyvinyl alcohol(MF-PVA)composite fiber by electrospinning[J].Advanced Materials Research,2015,1088:419-423.
[10]黄司琪,卢奎林,许圣威,等.凝固浴对MF-PVA纤维结构与阻燃性能的影响[J].高分子材料科学与工程,2010,26(8):31-34.
[11]MAITY S,SINGHA K,夏于旻,等.三聚氰胺纤维的合成、性能和应用[J].国际纺织导报,2013,41(6):4-8.
[12]徐樑华,吴红枚.PAN/DMSO干湿法纺丝凝固工艺的研究[J].高分子材料科学与工程,2000,16(6):163-166.
[13]张涛,金俊弘,杨胜林,等.新型PIPD纤维的制备与性能研究[J].科学通报,2010(19):1951-1956.
[14]艾艳玲,杨延清,王小宪.炭/炭复合材料石墨化度的XRD表征方法[J].煤炭转化,2009,32(1):72-74.
[15]TSENG R L,WU F C,JUANG R S.Adsorption of CO2at atmospheric pressure on activated carbons prepared from melamine-modified phenol-formaldehyde resins[J].Separation and Purification Technology,2015,140:53-60.