安徽工程大学毕业设计(论文)
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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
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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; 安徽工程大学毕业设计(论文)
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目录
引言 ....................................................................................................................................... - 1 -
第1章 绪论 .......................................................................................................................... - 2 -
1.1选题背景 ......................................................................................................................... - 2 -
1.2羊毛的结构 ..................................................................................................................... - 2 -
1.2.1羊毛的形态结构 .......................................................................................................... - 2 -
1.2.2羊毛的特性 .................................................................................................................. - 3 -
1.3阻燃剂的概述 ................................................................................................................. - 3 -
1.3.1 磷系阻燃剂 ................................................................................................................. - 3 -
1.3.2 氮系阻燃剂 ................................................................................................................. - 4 -
1.3.3 卤系阻燃剂 ................................................................................................................. - 4 -
1.3.4 膨胀系阻燃剂 ............................................................................................................. - 4 -
1.4羊毛阻燃整理 ................................................................................................................. - 4 -
1.4.1金属氧化物阻燃处理羊毛 .......................................................................................... - 4 -
1.4.2金属络合物阻燃处理羊毛 .......................................................................................... - 4 -
1.4.3植酸阻燃处理羊毛 ...................................................................................................... - 4 -
1.5过渡金属离子催化在阻燃上的研究。 ......................................................................... - 5 -
1.6研究意义以及研究内容 ................................................................................................. - 6 -
1.6.1研究意义 ...................................................................................................................... - 6 -
1.6.2 研究内容 ..................................................................................................................... - 6 -
第2章 实验部分 .............................................................................................................. - 7 -
2.1 实验材料 ........................................................................................................................ - 7 -
2.2 实验步骤 ........................................................................................................................ - 7 -
2.3测试方法 ......................................................................................................................... - 7 -
2.3.1垂直燃烧性能 .............................................................................................................. - 7 -
2.3.2.极限氧指数(LOI) ................................................................................................... - 7 -
第3章 结果与讨论 .......................................................................................................... - 8 -
3.1燃烧性能分析 ................................................................................................................. - 8 -
3.2后续实验方案设计 ....................................................................................................... - 11 -
3.2.1阻燃性能研究 ............................................................................................................ - 11 -
3.2.2阻燃耐久性能研究 .................................................................................................... - 11 -
结论与展望 ......................................................................................................................... - 12 -
致谢 ..................................................................................................................................... - 13 -
参考文献 ............................................................................................................................. - 14 -
附录C英文文献及翻译 .................................................................................................... - 15 -
附录D参考文献及摘要 .................................................................................................... - 40 -