论文部分内容阅读
利用后处理的方法,将3-羟基苯基磷酰基丙酸(CEPPA)接枝到Lyocell纤维上,并通过FT-IR、TG、XRD等方法对处理后纤维的结构和性能进行了表征和分析。研究表明,在一定条件下,CEPPA可与Lyocell纤维发生反应,并且随着CEPPA浓度以及烘焙温度的提高、烘焙时间的延长以及微波处理,Lyocell纤维中P含量升高,但纤维的断裂强度下降。综合考虑力学性能的损失以及P含量的增加,CEPPA的质量浓度为8%,微波处理并在160℃下烘焙5min时,所得纤维的P含量以及力学性能相对较好;经CEPPA处理后,Lyocell纤维热失重后的残余量增大、LOI值增加,具有了一定的阻燃性能。
The post-treatment method was used to graft 3-hydroxyphenylphosphorylpropionic acid (CEPPA) onto Lyocell fiber. The structure and properties of the treated fiber were characterized by FT-IR, TG and XRD. . The results show that under certain conditions, CEPPA can react with Lyocell fibers. With the increase of CEPPA concentration, baking temperature, baking time and microwave treatment, the content of P in Lyocell fibers increases but the breaking strength of fibers decreases. Considering the loss of mechanical properties and the increase of P content, the mass concentration of CEPPA was 8%. The P content and mechanical properties of the obtained fibers were relatively good after microwave treatment and baking at 160 ℃ for 5 min. After CEPPA treatment, After the weight loss after heat treatment increased, LOI value increased, with a certain flame retardant properties.