Smoke suppression of [Glu]H(2)PW(12)O(40)in thermoplastic polyurethane elastomer
Smoke suppression of [Glu]H(2)PW(12)O(40)in thermoplastic polyurethane elastomer
复制标题
热塑性聚氨酯弹性体中[Glu]H(2)PW(12)O(40)的抑烟效果
DOI：
10.1007/s10973-019-09134-3
复制
发表时间：
2021
影响因子：
4.4
通讯作者：
Chen Xilei
中科院分区：
文献类型：
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作者：
Jiao Chuanmei;Li Mingxin;Zhang Xiaoguang;Chen Xilei
众所周知，热塑性聚氨酯弹性体（TPU）在燃烧过程中会释放出大量的烟雾。降低TPU的火灾风险是消防安全领域的研究内容之一。本文以[Glu] h2pw12o40作为TPU中的消烟剂，分别采用核磁共振、扫描电镜、锥形量热仪（CCT）、烟密度测试（SDT）和热重分析/红外光谱法对[Glu] h2pw12o40的消烟效果进行了深入研究。在CCT试验中，添加了0.5质量% [Glu]H2PW12O40的TPU-3的产烟率峰值为0.036 m2s−1，比未添加[Glu]H2PW12O40的TPU-0的产烟率峰值（0.145 m2s−1）降低了75%。[Glu] h2pw12o40能使总烟释放量（TSR）从1560 m2m−2降低到694 m2m−2。[Glu] h2pw12o40可使烟气因子从1838 W m−2降至538 W m−2。SDT结果表明，在无火焰测试结束时，加入0.5质量% [Glu] h2pw12o40的TPU-3的光通量值比纯TPU降低了30%。CCT试验的照片表明[Glu] h2pw12o40能促进炭渣的形成。TG测试也表明[Glu] h2pw12o40可以提高高温下的热稳定性。在热分解结束时，加入0.5质量% [Glu]H2PW12O40的TPU-3的质量比不加入[Glu]H2PW12O40的TPU-0的质量增加了6.3%。综上所述，[Glu] h2pw12o40可以通过促进炭的生成来抑制烟的产生。此外，[Glu] h2pw12o40在TPU抑烟方面具有良好的应用前景。
As is known there is a large amount of smoke released from the combustion process of thermoplastic polyurethane elastomer (TPU). To reduce the fire risk of TPU is one of the research contents in the fire safety fields. In this paper, [Glu]H2PW12O40was used as smoke suppressant in TPU, and the smoke suppression effect of [Glu]H2PW12O40was intensively investigated using nuclear magnetic resonance, scanning electron microscope, cone calorimeter test (CCT), smoke density test (SDT), and thermogravimetric analysis/infrared spectrometry, respectively. In the CCT test, the peak value of smoke production rate (SPR) of TPU-3 with 0.5 mass% of [Glu]H2PW12O40was 0.036 m2s−1, reduced by 75% compared with the peak SPR value of TPU-0 without [Glu]H2PW12O40(0.145 m2s−1). [Glu]H2PW12O40could decrease the total smoke release (TSR) from 1560 to 694 m2m−2. And [Glu]H2PW12O40could decrease the smoke factor from 1838 to 538 W m−2. The SDT results showed that the luminous flux value of TPU-3 with 0.5 mass% of [Glu]H2PW12O40decreased by 30% compared with pure TPU at the end of the test without flame. The photographs from the CCT test showed that [Glu]H2PW12O40could promote char residue formation. TG test also revealed that [Glu]H2PW12O40could improve the thermal stability at high temperature. At the end of thermal decomposition, the mass of TPU-3 with 0.5 mass% of [Glu]H2PW12O40increased 6.3% compared with the mass of TPU-0 without [Glu]H2PW12O40. Based on the above result, it could be concluded that [Glu]H2PW12O40can suppress smoke generation by promoting char generation. In addition, [Glu]H2PW12O40has a good prospect in smoke suppression of TPU.