新型磷氮阻燃剂TGICA-DOPO的合成及其对乙烯基酯树脂阻燃性能的影响

陶晓晓; 段华军; 董文静; 汪鑫

doi:10.13801/j.cnki.fhclxb.20171026.002

新型磷氮阻燃剂TGICA-DOPO的合成及其对乙烯基酯树脂阻燃性能的影响

武汉理工大学材料科学与工程学院, 武汉 430070

基金项目: 国家自然科学基金（51373129）

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中图分类号: TB332
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出版历程
- 收稿日期: 2017-07-24
- 修回日期: 2017-09-14
- 刊出日期: 2018-07-14

Preparation of a novel flame retardant TGICA-DOPO and its effects on the properties of vinyl ester resin

School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China

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Corresponding author:
DUAN Huajun: 段华军,博士,副教授,硕士生导师,研究方向为高性能树脂基体E-mail:dhj@whut.edu.cn

摘要

摘要: 以异氰尿酸三缩水甘油酯（TGIC）、丙烯酸和9，10-二氢-9-氧杂-10-磷杂菲-10-氧化物（DOPO）为主要原料，合成了一种含P和N元素的新型阻燃添加剂TGICA-DOPO，将其应用在乙烯基酯树脂（VER）中可以制备具有良好阻燃性能的TGICA-DOPO/VER复合材料。通过FTIR光谱、核磁共振（³¹P-NMR和¹H-NMR）等对TGICA-DOPO的分子结构进行了表征；通过极限氧指数（LOI）测试、TGA和DMA研究了TGICA-DOPO/VER树脂体系的阻燃性能和耐热性能。结果表明，当树脂体系中TGICA-DOPO的质量分数为30wt%时，LOI达到35；当体系中TGICA-DOPO的质量分数为25wt%时，树脂浇铸体在800℃下的残炭量提高了322%；FTIR和SEM测试结果表明，燃烧时TGICA-DOPO有助于形成高致密、连续炭层，隔绝了热量和空气向基材的传递，从而在凝聚相中发挥阻燃作用。
- 乙烯基酯树脂 /
- P-N系阻燃剂 /
- 阻燃机制 /
- 极限氧指数 /
- 9,10-二氢-9-氧杂-10-磷杂菲-10-氧化物
Abstract: A novel flame retardant containing P and N was successfully synthesized via the addition reaction between triglycidyl isocyanurate (TGIC), acrylic acid and 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO). A flame retardant composite material TGICA-DOPO/vinyl ester resin (VER) was prepared by applying it to VER. The structure of TGICA-DOPO is characterized by FTIR, ¹H and ³¹P nuclear magnetic resonance (NMR). The flame retardancy and thermal properties of TGICA-DOPO/VER resin system were respectively investigated by limited oxygen index (LOI) measurement, TGA and DMA. The results show that the LOI value of the resin system containing 30wt% TGICA-DOPO is improved to 35. TGA results indicate that the char yields of VER casting containing 25wt% TGICA-DOPO under 800℃ is increased by 322%. The FTIR and SEM results indicate that TGICA-DOPO promotes the formation of continuous, compact and intumescent char layer which can reduce the efficiency of heat-and oxygen-exchange.
- vinyl ester resin /
- P-N containing flame retardant /
- flame-retardant mechanism /
- limited oxygen index /
- 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide

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1.	李玉芳，李明. DOPO及其衍生物在聚合物中的阻燃应用研究进展. 精细与专用化学品. 2021(02): 41-44 . 百度学术
2.	徐春萍，陈春悦，张永航，龚维，班大明. 含磷聚合物型阻燃剂(PMP)对乙烯基酯树脂(VER)的阻燃改性. 材料研究学报. 2021(11): 843-849 . 百度学术