On March 15, 2020, Huo, Siqi; Yang, Shuang; Wang, Jun; Cheng, Jianwen; Zhang, Qianqian; Hu, Yefa; Ding, Guoping; Zhang, Qiaoxin; Song, Pingan published an article.Name: N-(3-Aminopropyl)-imidazole The title of the article was Liquid phosphorus-containing imidazole derivative as flame-retardant curing agent for epoxy resin with enhanced thermal latency, mechanical, and flame-retardant performances. And the article contained the following:
The development of phosphorus-containing flame retardants combining good compatibility with matrix, low curing temperature, and mech. reinforcing effect has remained a major challenge. Herein, we reported the synthesis of a liquid flame-retardant curing agent (DA) via the nucleophilic substitution between diphenylphosphinic chloride and 1-(3-aminopropyl)-imidazole (AI). DA exhibited good blending and latency towards epoxy resin (EP) at room temperature According to DSC studies, DA could rapidly cure EP at moderate temperature Compared with EP/AI sample, EP/DA samples displayed comparable or higher glass transition temperature (Tg) and enhanced mech. properties due to the introduction of rigid diphenylphosphinyl group and improved crosslinking d. Moreover, DA improved the flame-retardant performances of EP thermoset. For instance, the LOI and UL94 rating of EP/DA-16 sample achieved 37.2% and V-0, resp. In addition, the peak of heat release rate (PHRR), average of heat release rate (AHRR), fire growth rate (FIGRA), and total heat release (THR) for EP/DA-16 sample reduced by 32%, 42%, 28% and 27% in comparison to EP/AI sample, resp. DA was characterized by its good compatibility with EP, moderate curing temperature, fast curing rate, suitable thermal latency, mech. reinforcing and flame-retardant effects, and thus it had a broad application prospect in various industrial fields. The experimental process involved the reaction of N-(3-Aminopropyl)-imidazole(cas: 5036-48-6).Name: N-(3-Aminopropyl)-imidazole
The Article related to epoxy resin liquid phosphorus imidazole thermal latency flame retardancy, epoxy resin, flame retardancy, liquid phosphorus-containing imidazole, mechanical properties, thermal latency and other aspects.Name: N-(3-Aminopropyl)-imidazole
Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem