含9,10-二氢-9-氧杂-10-磷杂菲-10-氧化物功能化多壁碳纳米管的制备、表征及其在环氧纳米复合材料中的高阻燃性能

Preparation and Characterization of DOPO-Functionalized MWCNT and Its High Flame-Retardant Performance in Epoxy Nanocomposites.

作者信息

Gu Liqiang, Qiu Chen, Qiu Jianhui, Yao Youwei, Sakai Eiichi, Yang Liting

机构信息

School of Chemistry and Environment, South China Normal University, Guangzhou 510006, China.

Department of Machine Intelligence and Systems Engineering, Faculty of Systems Science and Technology, Akita Prefectural University, Yurihonjo 015-0055, Japan.

出版信息

Polymers (Basel). 2020 Mar 7;12(3):613. doi: 10.3390/polym12030613.

DOI:10.3390/polym12030613

PMID:32156085

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7182840/

Abstract

In this work, functionalized multi-walled carbon nanotubes (MWCNT) were synthesized by the reaction between acylated MWCNT and 10-(2,5-dihydroxyphenyl)-9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (ODOPB). The obtained MWCNT-ODOPB was well dispersed into epoxy resins together with aluminum diethylphosphinate (AlPi) to form flame-retardant nanocomposites. The epoxy resin nanocomposite with phosphorus content of 1.00 wt % met UL 94 V-0 rating, exhibited LOI value of 39.5, and had a higher compared to neat epoxy resin, which indicates its excellent flame retardant performance. These experimental results indicated that MWCNT-ODOPB was a compatible and efficient flame retardant for epoxy resins. Moreover, cone calorimeter analysis showed that the peak heat release rate (pHRR), total heat release (THR) values, and CO production profiles of the composites decreased with an increase in the additional amount of phosphorus.

摘要

在本工作中，通过酰化多壁碳纳米管（MWCNT）与10-(2,5-二羟基苯基)-9,10-二氢-9-氧杂-10-磷杂菲-10-氧化物（ODOPB）之间的反应合成了功能化多壁碳纳米管。将所得的MWCNT-ODOPB与二乙基次膦酸铝（AlPi）一起很好地分散到环氧树脂中，以形成阻燃纳米复合材料。磷含量为1.00 wt%的环氧树脂纳米复合材料达到了UL 94 V-0等级，极限氧指数（LOI）值为39.5，并且与纯环氧树脂相比具有更高的值，这表明其具有优异的阻燃性能。这些实验结果表明，MWCNT-ODOPB是一种与环氧树脂相容且高效的阻燃剂。此外，锥形量热仪分析表明，随着磷添加量的增加，复合材料的热释放速率峰值（pHRR）、总热释放（THR）值和CO生成曲线均降低。