摘要
高性能芳纶纤维除了刚性芳环结构贡献外,分子链之间的氢键结构也对其性能有显著影响。本研究采用傅里叶红外光谱分析方法,对比了不同芳纶纤维的红外吸收峰与吸收强度的差异性,揭示不同芳纶纤维表观结晶性能的差异性。研究结果表明:所用的3种芳纶纤维化学结构并无明显差别,而吸收强度的不同很大程度来源于大分子链之间的氢键缔合程度的不同。本方法可以应用于其他含酰胺键的聚合物纤维研究工作。
Aramid fiber not only has rigid aromatic rings, the organizational structure built by the hydrogen bond also have a significant impact on its performance. In this paper, classical analysis on aramid fiber by FT-IR has been used, it has clearly revealed that aramid fiber with different manufacturing process has different apparent crystalline properties. The results showed that： there is no difference in chemical structure with the three samples, there is the difference of absorptivity mostly because of the the difference of crystallinity. Aslo, the crystallinity of aramid pulp are lower than aramid fiber. This method can also be applied to other polymer fibers containing amide bond.
出处
《纸和造纸》
北大核心
2011年第12期47-50,共4页
Paper and Paper Making
基金
陕西科技大学研究生创新基金
