溶液插层法制备阻燃聚丙烯腈纤维的初步尝试Solution Intercalation of Flame Retardant Acrylic Fiber
贾曌,杨彦功,田贵山
JIA Zhao, YANG Yan-gong, TIAN Gui-shan (College of Material Science and Engineering
摘要(Abstract)：
用溶液插层法对制备阻燃聚丙烯腈纤维进行了初步尝试,对二甲基甲酰胺插层的高岭土与聚丙烯腈溶液共混体系的流动性能及共混复合物样品的燃烧性能进行了研究,并且用红外光谱和X-射线衍射对聚合物样品进行了结构分析与表征。结果表明:部分聚丙烯腈大分子插入到了高岭土片层之间,使高岭土层间距有一定程度的增大。共混复合物的阻燃性能得到一定改善,极限氧指数从18%提高到了22%;同时共混复合物的耐热性能得到一定改善。
A new study on flame retardant acrylic fiber made by solution intercalation was carried out. dimethyl formamide intercalated kaolinite (DMF-kaolinite) was blended with polyacrylonitrile-dimethyl formamide (PAN-DMF) aqueous solution. Both the flow property and flame retardant property were investigated. IR and X-ray diffraction indicateded that the interlay spacing of DMF had been expanded, which was attributed to the fact that PAN had been intercalated into the layer of the DMF. The LOI of the blend was enhanced from 18 % to 22 %, which revealed that the flame retardant property had been improved. In addition, thermal stability of the blend was enhanced to some degree.
关键词(KeyWords)：
腈纶;改性;阻燃;插层法
acrylic fiber, modification, flame retardant
基金项目(Foundation):
作者(Author):
贾曌,杨彦功,田贵山
JIA Zhao, YANG Yan-gong, TIAN Gui-shan (College of Material Science and Engineering
参考文献(References)：
- [1]朱庆松.阻燃腈纶的国内开发现状和发展趋势[J].纺织科学研究,2002,(4):1-3.
- [2]舒中俊,漆宗能,王佛松.聚合物阻燃新途径-聚合物/粘土纳米复合材料的特殊阻燃性[J].高分子通报,2000,(4):65-70.
- [3]张泽江,冯良荣,邱发礼.纳米无机阻燃剂的研究进展[J].化学进展,2004,16(4):508-515.
- [4]欧育湘.无卤生态型阻燃高分子材料[J].塑料科技,2003,(1):1-4.
- [5]Kashiwagi T,Harris J,Richard H,et al.Flame retardant mechanism of polyamide6-clay nanocomposites[J].Polymer,2004,45(3):881-891.
- [6]Marosfoi B B,Marosi G J,Szep A,et al.Complex activity of clay and CNT particles in flame retarded EVA copolymer[J].Polym Adv Technol,2006,17(4):255-262.
- [7]Sugahara Y,Satokawa S,Kuroda K,et al.Evidence for the formation of interlayer polyacrylonitrile in kaolinite[J].Clays and Clay Minerals,1988,36(4):343-348.
- [8]厦华,佟健,侯常娥.高岭土-聚丙烯腈夹层复合物的制备[J].矿物岩石,2001,21(12):7-10.
- [9]Ryoji T,Komori Y.Intercalation of nitroanilines into kaolinite and second harmonic generation[J].Chem Mater,2001,13:3741-3746.
- [10]Martens W N,Froist R L,Kristof J,et al.Modification of Kaolinite Surfaces through Intercalation with Deuterated Dimethylsulfoxide[J].J Phys Chem B,2002,106:4162-4171.
- [11]Kelleher B P,O'Dwyer,T F,Gardolinski J,et al.Intercalation of benzamide into kaolinite[J].Colloid Interface Sci,2000,221:284-290.
- [12]漆宗能,尚文宇.聚合物/层状硅酸盐纳米复合材料理论与实践[M].化学工业出版社,2002.57.