阻燃剂DOPO-VTS在超临界CO_(2)中的溶解度测定  

Solubility determination of flame retardant DOPO-VTS in supercritical CO_(2)

作　　者：宋洁 刘国华 郑环达[1] 郑来久[1] 蔡涛 郑福尔 SONG Jie;LIU Guohua;ZHENG Huanda;ZHENG Laijiu;CAI Tao;ZHENG Fuer(Liaoning Provincial Key Laboratory of Supercritical CO_(2) Dyeing/National Supercritical Fluid Dyeing Technology Research Center,Dalian Polytechnic University,Dalian 116034,Liaoning,China;Shishi CTES Research Institute of Apparel and Accessories Industry,Shishi 362700,Fujian,China)

机构地区：[1]大连工业大学辽宁省超临界二氧化碳无水染色重点实验室/全国超临界流体无水染色技术研发中心,辽宁大连116034 [2]石狮市中纺学服装及配饰产业研究院,福建石狮362700

出　　处：《纺织高校基础科学学报》2023年第3期1-6,共6页Basic Sciences Journal of Textile Universities

基　　金：国家自然科学基金(21908015);辽宁省应用基础研究技术项目(2023JH2/101600003);大连市科技创新基金(2022JJ12SN055);大连市重点科技研发计划(2022YF12GX057)。

摘　　要：为了明晰阻燃剂10-(2-三甲基硅烷基-乙基)-9-氢-9-氧杂-10-磷杂菲-10-氧化物(DOPO-VTS)在超临界CO_(2)流体中的溶解行为,在压力10~25 MPa、温度323.15~393.15 K条件下,利用动态法测定了DOPO-VTS在超临界CO_(2)中的溶解度。分析了系统温度、压力对阻燃剂DOPO-VTS溶解度的影响,并利用Chrastil模型、Ad-Chrastil模型、MST模型、Ad-MST模型对DOPO-VTS在超临界CO_(2)中的溶解度数据进行拟合。结果表明,DOPO-VTS在110 min时达到溶解平衡;随着温度、压力升高,DOPO-VTS溶解度也随之增加;在超临界CO_(2)中的溶解度范围为1.189×10^(-6)~2.342×10^(-6) mol/mol;在温度393.15 K,压力24 MPa条件下,DOPO-VTS可获得最大溶解度;与其他3种半经验方程相比,通过引入4个方程参数,Ad-MST模型拟合效果最好,其相对偏差(AARD)值为12.13%。In order to determine the solubility behavior of 10-(2-trimethylsilyl-ethyl)-9-hydrogen-9-oxa-10-phoxanthine-10-oxide(DOPO-VTS) in supercritical CO_(2) fluid,solubility of DOPO-VTS was measured by dynamic method at a pressure of 10~25 MPa and a temperature of 323.15~393.15 K.The influence of temperature and pressure on the DOPO-VTS solubility was analyzed,and the solubility data of flame retardant in supercritical CO_(2) were fitted by Chrastil model,Ad Chrastil model,MST model and Ad MST model.The results show that the DOPO-VTS solution reaches equilibrium at 110 min.The solubility of flame retardant is enhanced with the increase of temperature and pressure.The solubility ranges in supercritical CO_(2) is 1.189×10^(-6) ~ 2.342×10^(-6) mol/mol.The optimum process conditions of solubility of DOPO-VTS is temperature of 393.15 K and pressure of 24 MPa.Compared with the other three semi-empirical equations,Ad-MST model presents the best fitting effect by introducing four equation parameters with a AARD value of 12.13%.

关 键 词：超临界CO_(2) 阻燃剂 溶解度 平衡时间 

分 类 号：TQ630[化学工程—精细化工]