阻燃添加剂 DDM-DOPO 和石墨烯对外部热辐射下玻璃纤维增强环氧树脂火焰传播的影响。

The Effect of Flame-Retardant Additives DDM-DOPO and Graphene on Flame Propagation over Glass-Fiber-Reinforced Epoxy Resin under the Influence of External Thermal Radiation.

机构信息

Voevodsky Institute of Chemical Kinetics and Combustion SB RAS, 630090 Novosibirsk, Russia.

Department of Physics, Novosibirsk State University, 630090 Novosibirsk, Russia.

出版信息

Molecules. 2023 Jul 1;28(13):5162. doi: 10.3390/molecules28135162.

DOI:10.3390/molecules28135162

PMID:37446824

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10343289/

Abstract

The flammability of various materials used in industry is an important issue in the modern world. This work is devoted to the study of the effect of flame retardants, graphene and DDM-DOPO (9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide-4,4'-diamino-diphenyl methane), on the flammability of glass-fiber-reinforced epoxy resin (GFRER). Samples were made without additives and with additives of fire retardants: graphene and DDM-DOPO in various proportions. To study the flammability of the samples, standard flammability tests were carried out, such as thermogravimetric analysis, the limiting oxygen index (LOI) test, and cone calorimetry. In addition, in order to test the effectiveness of fire retardants under real fire conditions, for the first time, the thermal structure of downward flame propagation over GFRER composites was measured using thin thermocouples. For the first time, the measured thermal structure of the flame was compared with the results of numerical simulations of flame propagation over GFRER.

摘要

各种工业用材料的可燃性是现代社会的一个重要问题。这项工作致力于研究阻燃剂、石墨烯和 DDM-DOPO（9,10-二氢-9-氧杂-10-磷杂菲-10-氧化物-4,4'-二氨基二苯基甲烷）对玻璃纤维增强环氧树脂（GFRER）可燃性的影响。制备了无添加剂和添加了阻燃剂（石墨烯和 DDM-DOPO）的样品，添加比例不同。为了研究样品的可燃性，进行了标准可燃性测试，如热重分析、极限氧指数（LOI）测试和锥形量热法。此外，为了在真实火灾条件下测试阻燃剂的有效性，首次使用薄热电偶测量了 GFRER 复合材料向下火焰传播的热结构。首次将测量的火焰热结构与 GFRER 上火焰传播的数值模拟结果进行了比较。