Font Size: a A A

The Utilization Of Phenyleimethylhydrazine And The Synthesis Of A Novel Flame Retardant Containing Nitrogen And Phosphorus

Posted on:2017-04-30Degree:MasterType:Thesis
Country:ChinaCandidate:Y LiuFull Text:PDF
GTID:2311330491961173Subject:Pharmaceutical engineering
Abstract/Summary:PDF Full Text Request
With the great developments we have achieved during the past decades, China has transformed into the world’s leading industrial powers from a backward agricultural country and people’s living standards have greatly improved. With the rapid economic development. We also produced a huge amount of industrial waste. The mostly common used approaches are compost and landfill. Occupying a lot of land which holds back city’s further development. What’s worse, it causes damage to the environment and endanger human health. To achieve sustainable development, it is bound to improve solid waste resource utilization.Polymer materials play a great role in the development of modern society, because of its high flammability, the various layers of security incidents happens despite of its convenience. So we need to add flame retardant into them to minimize the fire hazard. However, conventional flame retardants, bromine-based flame retardant as the main representative, although they have outstanding performance and have been widely used around the world. However, due to the production of polybrominated diphenyl and polybrominated dioxins and dibenzofurans during the thermal degradation, they have been limited by the international environmental protection department in recent years.This article first accomplished the structural tranformation of a common industrial waste Phenyleimethylhydrazine and achieved two target compounds with high reaction activity. We wish to provide pharmaceutical companies a feasible plan to deal with Phenyleimethylhydrazine. We also improve the yield of the entire route after the synthesis route optimization.In this paper we obtain a novel type of flame retardant containing nitrogen and phosphorus, by the condensation of target compound and SPDPC. We also identify its structure through a variety of characterization methods. Evaluating its flame retardance on PLA by measurements of LOI、Vertical burn、MCC、TG-IR、Raman spectrum、 SEM etc. The result shows that when the addition reaches 20 wt.%, the LOI value is 31.2% and reaches UL-94 V-2 rating.
Keywords/Search Tags:Phenyleimethylhydrazine, flame retardant containing nitrogen and phosphorus, limit oxygen index, polylactic acid
PDF Full Text Request
Related items