SYNTHESIS OF SULFUR-CONTAINING NITROGEN AND PHOSPHORUS FLAME RETARDANT AND ITS APPLICATION TO POLYACRYLONITRILE FIBER

摘要：

　　Flame retardant ditrimethylolpropane diphosphothiourea(DDT)was synthesized by using ditrimethylolpropane(DTMP),phosphoryl chloride(POCl3)and thiourea as raw materials.Preparation of finishing agent with ethanol as solvent and used as a flame retardtant for polyacrylonitrile fiber.The effect of finishing agent solution concentration,curing temperature and curing time on flame retardancy,whiteness and breaking strength of polyacrylonitrile fiber was also discussed.The optimal synthesis conditions for DDT were determined: the finishing liquid concentration was 200g/L and baking 80℃ for 3 min.The results showed that the flame-retardant efficiency reached national standard B1 level and retained higher breaking strength and whiteness.

关键词： Thiourea flame retardant polyacrylonitrile fiber synthesis process

作者: Hao Feng-Ling Song Chuan-Jie Liu Qun

作者单位: Jilin Institute of Chemical Technology,Ji Lin

会议类型: 国际会议

会议名称: 2018 International Conference on New Materials and Intelligent Manufacturing (ICNMIM(2018年第一届新材料与智能制造国际会议))

会议地点: 吉林

会议语种:英文

页码: 157-160

在线出版日期: 2018-06-23（万方平台首次上网日期，不代表论文的发表时间）