文献类型：期刊文献

中文题名：新型含磷阻燃型桐油基聚氨酯硬泡的制备及性能表征

英文题名：Preparation and characterization of novel phosphorus-containing flame retardant tung oil-based rigid polyurethane foam

作者：周威[1,3] 郑开梅[1,2] 周永红[3,4] 张猛[3,4]

第一作者：周威

通信作者：Zhang, Meng

机构：[1]中国林业科学研究院林产化学工业研究所,江苏南京210042;[2]南京林业大学林业资源高效加工利用协同创新中心,江苏南京210037;[3]江苏省生物质能源与材料重点实验室,江苏南京210042;[4]国家林业局林产化学工程重点开放性实验室,江苏南京210042

年份：2019

卷号：38

期号：7

起止页码：3285-3290

中文期刊名：化工进展

外文期刊名：Chemical Industry and Engineering Progress

收录：CSTPCD;;EI(收录号：20194407615472);Scopus;北大核心:【北大核心2017】；CSCD:【CSCD2019_2020】；

基金：国家自然科学基金(31670577,31670578);国家重点研发计划(2017YFD0601304)

语种：中文

中文关键词：聚氨酯;桐油;9,10-二氢-9-氧杂-10-磷杂菲-10-氧化物;阻燃;硬泡

外文关键词：polyurethane;tung oil;DOPO;flame retardancy;rigid foam

分类号：TQ328.3

摘要：桐油与甘油在甲醇钠为催化剂的条件下发生醇解反应得到桐油醇解产物(GTO),GTO经环氧化得到环氧化桐油醇解产物(EGTO),EGTO与9,10-二氢-9-氧杂-10-磷杂菲-10-氧化物(DOPO)发生开环反应生成新型含磷阻燃型桐油基多元醇(PTOP)。PTOP部分取代聚醚多元醇(PPG4110)与异氰酸酯及助剂反应,通过一步法制备聚氨酯硬泡(RPUF)。采用万能试验机、热导率测定仪、热重分析仪和锥形量热仪分别考察RPUF的力学性能、热稳定性和燃烧行为。结果表明:随着PTOP替代石油基多元醇的比率增大,RPUF的压缩强度、密度、热导率先增大后减小,热稳定性提高,极限氧指数(LOI)由18.1%提高至26.0%,而总放热量先减小后增大,这主要是由于PTOP结构中的DOPO基团具有阻燃作用而PTOP结构中含有的桐油基脂肪链易于燃烧且热释放量较大。以上结果表明PTOP部分取代PPG4110制备的RPUF具有良好的阻燃性能和热稳定性。
The monoglyceride of tung oil (GTO) was prepared by using tung oil as raw material,sodium methoxide as catalyst,through alcoholysis reaction with glycerol,and epoxidized monoglyceride of tung oil (EGTO) synthesized by epoxidation.The novel flame retardant tung oil-based polyol (PTOP) was prepared through the ring opening reaction of EGTO with 9,10-dihydro-9-oxa-10-phosphaphenanthrene- 10-oxide (DOPO).Rigid polyurethane foam (RPUF) was formed by one step via the reaction of PTOP,polyether polyol (PPG4110) with PAPI and chemical agents.The mechanical behavior,thermal stability and fire behavior of RPUFs were determined by an universal mechanical tester,thermal analyzer and cone calorimetry,respectively.The results showed that with the increase of the substitution of PPG4110 by PTOP,the compressive strength,density and thermal conductivity of RPUFs were increased then decreased,the thermal stability was elevated,the limiting oxygen index (LOI) of RPUF was raised from 18.1% to 26.0% and the total heat released was decreased and then increased,which was due to the flame retardancy of DOPO in PTOP while the fat chain of monoglyceride of tung oil in PTOP was easy to burn and the heat released was higher.RPUF was prepared by PTOP at different levels with good flame retardancy and excellent thermal stability.