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化定向PAN纳米纤维的机械和热特性

Jaymin Vrajlal Sanchaniya^1,2, Inga Lasenko¹, Sai Pavan Kanukuntala^1,2

¹Mechanics and Biotextile Research Laboratory, Riga Technical University, 3/3-20 Pulka Street, LV-1007 Riga, Latvia.

|August 12, 2023

概括

化聚烯 (PAN) 纳米纤维通过增加拉伸强度和减少直径来增强其过能力. 本研究详细介绍了热处理如何影响PAN纳米纤维的机械和热性能,以改善波器应用.

科学领域:

材料科学材料科学材料科学
聚合物科学聚合物科学
纳米技术纳米技术

背景情况:

聚烯 (PAN) 纳米纤维对于先进的过系统至关重要,包括空气和水的净化.
它们在去除污染物的有效性需要了解材料属性修改.

研究的目的:

调查回火对电PAN纳米纤维的机械和热性能的影响.
为了将回火温度与抗拉强度的变化,模和热过渡相关联.

主要方法:

PAN 解决方案的电,以创建纳米纤维地毯.
在70°C至350°C的温度下采光.
使用拉伸测试,热重力测量 (TGA),微分扫描热量测量 (DSC) 和扫描电子显微镜 (SEM) 的表征.

主要成果:

Annealing 将纳米纤维直径减少了20%左右.
拉伸强度增加了32% (纵向) 和23% (横向).
玻璃过渡温度在280°C下降6%;降解温度在280°C上升3.5%.

结论:

化显著提高了PAN纳米纤维的机械完整性和热稳定性.
优化化条件可以提高PAN纳米纤维的性能,以满足苛刻的过任务.
这项研究为设计卓越的基于PAN的过介质提供了关键数据.

关键词:

烧焦的烧焦方式不同扫描热量计差异扫描热量计.电力旋转是指电力旋转.机械机械机械机械机械面向的纳米纤维.热热的热量是可以实现的.热重力测量分析的热重力测量分析

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