#毕业论文#过渡金属离子植酸阻燃羊毛织物的制备及性能研究安徽工程大学轻化工程

安徽工程大学毕业设计（论文）

过渡金属离子/植酸阻燃羊毛织物的制备及性能研究

摘要

随着经济社会的发展，人们对美好生活品质的追求越来越高，安全、环保、舒适型材料越来越得到人们的认可。羊毛织物作为一种天然纤维，在日常生活中应用非常广泛，虽然羊毛具有天然的阻燃性，但羊毛织物经过染整加工过程中，会使它的阻燃性遭破坏。因此将羊毛织物进行阻燃处理，对保障人们的安全具有重要意义。

本文通过选用生物基材料植酸（PA）作为含磷阻燃剂，研究对羊毛织物阻燃性能的影响。同时在该体系中引入不同的过渡金属离子，研究对羊毛织物催化炭化和阻燃性能的影响。并利用极限氧指数、垂直燃烧等测试手段，对羊毛织物关于植酸浓度、过渡金属离子种类的燃烧性能、阻燃性能进行研究。

通过极限氧指数和垂直燃烧对样品的燃烧性能和阻燃性能进行了表征，结果表明，经植酸处理后，使得羊毛织物阻燃性能提高，经10%浓度的植酸溶液处理，羊毛的极限氧指数（LOI）可达到32.8%，损毁长度降低到8.5cm，由此数据可知，经植酸处理对羊毛织物具有较好的阻燃效果。

确定最佳的植酸浓度后，再次通过极限氧指数和垂直燃烧对样品的燃烧性能和阻燃性能进行了表征，结果表明，加入不同的过渡金属离子以后，过渡金属离子在纤维上都能起到一定的阻燃作用。综合以上数据表明，由于植酸和过渡金属离子的存在，使得样品的残留量大大增加，并且催化织物在裂解时形成更稳定的物质，羊毛织物的阻燃性能进一步提高。

关键词：羊毛织物; 植酸; 过渡金属离子; 阻燃性能

宋鹏宇：过渡金属离子/植酸阻燃羊毛织物的制备及性能研究

Preparation and properties of transition metal ion/phytic acid

flame retardant wool fabric

Abstract

With the development of economy and society, people's pursuit of a better quality of life is getting higher and higher, and safe, environmentally friendly and comfortable materials are more and more recognized by people. As a natural fiber, wool fabric is widely used in daily life. Although wool has natural flame retardancy, the wool fabric will be destroyed during the dyeing and finishing process. Therefore, the flame-retardant treatment of wool fabrics is of great significance to protect people's safety.

In this paper, bio-based phytic acid (PA) is selected as the acid source. Since wool itself contains nitrogen, it can be used as a nitrogen source and a carbon source. It can form an intumescent flame-retardant system on wool fabrics and study the impact on the flame-retardant properties of wool fabrics. At the same time, different metal ions were introduced into the system to study the effect on the catalytic carbonization and flame retardancy of wool fabrics. And using the limit oxygen index, vertical combustion and other test methods to study the flammability and flame retardancy of wool fabrics with regard to phytic acid concentration, transition metal ion species.

The combustion performance and flame-retardant performance of the samples were characterized by limiting oxygen index and vertical combustion. The results showed that after adding phytic acid solution, phytic acid can play a certain flame-retardant effect on the fiber, which improves the flame-retardant performance of the fiber. At the same time, it was found that a 10% concentration of phytic acid solution has better flame-retardant properties for fibers. At this time, the limiting oxygen index is 32.8%, and the damage length is 8.5cm. From this data, it can be seen that a 10% concentration of phytic acid solution has a good flame-retardant effect on wool fabrics.

After determining the optimal phytic acid concentration, the combustion performance and flame-retardant performance of the sample were characterized again by limiting oxygen index and vertical combustion. The results showed that after adding different transition metal ions, the transition metal ions can play a role on the fiber. To a certain flame-retardant effect. The above data indicates that the residual amount of the sample is greatly increased due to the presence of phytic acid and transition metal ions, and the catalytic fiber forms a more stable substance when cracked, and the flame-retardant performance of wool fiber is further improved.

Keywords: Wool fabric; Phytic acid; Transition metal ion; Flame retardant performance;