Abstract: ［Objective］The green and environmentally friendly fully bio-based flame-retardantimpregnating solution for lyocell fabrics with ultra-efficient flame-retardant and excellent wearingperformance were prepared in the water solvent.［Methods］Phytic acid（PA）and copper gluconate（CG）were used to synthesize the flame-retardant impregnating solution（PC），then the flame-retardant lyocell fabrics（Lyocell/PC） were prepared through impregnation，rolling and baking processes. Characterization was performed using X-ray photoelectron spectroscopy（XPS）and scanning electron microscopy energy dispersive spectroscopy（SEM-EDS）.［Results］The PC was successfully preparedand applied to the surface on the lyocell fabrics. When the loading of PC reached 3. 6%，the limiting oxygen index（LOI）of Lyocell/PC increased to 29. 3%. Besides，it passed the vertical burning test（VBT）， and the heat release was significantly suppressed. The flame-retardant mechanism indicatsthat PC could decompose in advance to form dense carbon layers to protect lyocell fabrics duringcombustion. Meanwhile，it produced a large amount of non-combustible gases to dilute the concentration of combustible gases in the air，achieving a good flame-retardant effect. In addition，compared with pure lyocell fabrics，Lyocell/PC fabrics had no change in strength，moisture regain，air permeability，and hand feel.［Conclusion］The fully bio-based flame-retardant impregnating solutionnot only could be prepared using a green and environmentally friendly method，but it could also endow the lyocell fabrics with excellent fire safety and wearing performance.

Key words: lyocell；fabrics；phytic acid；copper gluconate；flame-retardant performance；wearingperformance 

摘要： 【目的】开发一种绿色环保全生物基阻燃浸渍液，赋予莱赛尔（ lyocell）织物火安全性和优异的服用性能。【方法】以植酸（ PA）和葡萄糖酸铜（ CG）为原料合成阻燃浸渍液 PC，然后通过浸轧、烘焙工艺制备阻燃 lyocell织物（ Lyocell/PC），通过 X射线光电子能谱仪（ XPS）、扫描电子显微镜 -能量色散谱仪（ SEM-EDS）进行表征。【结果】 PC已成功制备并引入到 lyocell织物表面。 lyocell织物增质量达到 3. 6%时，极限氧指数（ LOI）提升至 29. 3%；且能通过垂直燃烧测试（ VBT）同时热释放得到明显的抑制。阻燃机理研究表明， PC可在燃烧时提前分解并形成致密炭层保护 lyocell织物，，同时产生大量不可燃气体，稀释空气中的可燃气体浓度，达到良好的阻燃效果。此外，与纯 lyocell织物相比， Lyocell/PC织物的强力、回潮率、透气性和手感基本未发生变化。【结论】该全生物基阻燃浸渍液不仅制备方法绿色环保，且可赋予 lyocell织物优异的火安全性和服用性能。

关键词: 莱赛尔, 织物, 植酸, 葡萄糖酸铜, 阻燃性能, 服用性能

CLC Number: 

• TQ630