阻燃真丝织物的热重差热分析研究

Research on TG-DTA of Flame Retardant Real Silk Fabrics

利用TG-DTA研究阻燃电力纺和素绉缎,探讨该方法研究其阻燃性能和阻燃机理的可行性及现实指导意义。通过空气气氛下的热重差热分析实验和对比极限氧指数实验,研究了阻燃真丝织物电力纺和素绉缎的阻燃性能及热性能。结果表明:阻燃和未阻燃真丝织物两者的热失重行为均为3个阶段,阻燃剂的加入改变并抑制了真丝织物的进一步裂解,使初始裂解温度和最大裂解温度均有所降低,炭质残渣含量增加。因此,通过热重差热分析实验来探讨其阻燃效果和阻燃机理是可行和必要的,而且还可以结合分析固体炭渣来进一步推断处理工艺问题。

This research uses thermogravimetry-differential thermal analysis （TG-DTA） to study flame retardant habutae and crepe satin plain; discusses the feasibility and practical guiding significance of this method in studying its flame retardanee and flame-retardant mechanism; and studies the flame retardance and thermal properties of real silk fabrics habutae and erepe satin plain through TG-DTA under air atmosphere in comparison with limit oxygen index experiment. The result shows that the thermo-gravimetric behavior of both flame retardant and non-flame retardant real silk fabrics has three phases; the addition of fire retardant changes and restrains further splitting of real silk fabrics, reduces the initial splitting temperature and maximum splitting temperature and increases the content of earbon slags. Therefore, it is feasible and necessary to discuss the flame retardant efficiency and flame-retardant meehanism through TG-DTA and the analysis on solid carbon slags can be combined to further infer and handle the proeess problem.