美国Georgia理工学院的一个研究小组开发出一项新技术,为碳纤维的强度和模量建立了一个新的里程碑。新技术采用冻胶纺丝技术加工聚丙烯腈(PAN)共聚物,制备碳纤维,已开发的新一代碳纤维的强度和模量都高于任何最新报道的连续纤维。此外,研究工作表明,冻胶纺丝方法为更好地改进碳纤维提供了一个途径。在冻胶纺丝中,首先是将溶液转化为冻胶。这种技术将聚合物链缠绕在一起,产生强大的链间作用力,以提高抗拉强度。冻胶纺丝也能增加纤维的定向 A research group at the Georgia Institute of Technology in the United States has developed a new technology that sets a new milestone in the strength and modulus of carbon fiber. The new technology uses jelly spinning technology to process polyacrylonitrile (PAN) copolymer to prepare carbon fiber. The strength and modulus of the new generation of carbon fiber have been developed are higher than any of the latest reported continuous fiber. In addition, research shows that jelly spinning method provides a better way to improve carbon fiber. In jelly spinning, the solution is first converted to jelly. This technique winds the polymer chains together to create a strong inter-strand force to increase tensile strength. Jelly spinning can also increase the orientation of the fibers