摘要
以纯度≥99.5%的缩水甘油硝酸酯(GN)为原料,采用阳离子聚合,合成了两种分子量3000左右的聚缩水甘油醚硝酸酯(PGN)粘合剂。采用红外(IR)、核磁(NMR)和凝胶渗透色谱(GPC)表征了它们的结构。测试了PGN的主要性能。研究了PGN与常用异氰酸酯[多苯基多亚甲基多异氰酸酯(PAPI)、改性六亚甲基多异氰酸酯(N-100)、甲苯二异氰酸酯(TDI)、二环己基甲烷二异氰酸酯(HMDI)]的固化反应。结果表明,在催化剂二月桂酸二丁基锡(DBTDL)或三苯基铋(TPB)作用下,PGN可与PAPI、N-100、TDI、HMDI等快速反应固化。固化试样经60℃贮存60天,邵A硬度无明显下降。
Two kinds of poly（glycidyl nitrate）（PGN）binders with molecular weight of about 3000 were synthesized via cationic polymerization using glycidyl nitrate（GN）with purity of more than 99.5% as raw material.Their structures were characterized by infrared spectroscopy（IR）,nuclear magnetic resonance（NMR）and gel permeation chromatograph（GPC）.The main properties of PGN were tested.The curing reaction of PGN with common isocyanates,polyaryl polymethylene isocyanate（PAPI）,modified hexamethylene polyisocyanate（N-100）,toluene diisocyanate（TDI）,dicyclohexyl methane diisocyanate（HMDI）was studied.Results show that the curing reaction of PGN can performed rapidly with PAPI,N-100,TDI and HMDI etc.under the action of catalysts dibutyltin dilaurate（DBTDL）or triphenyl bismuth（TPB）,and the cured samples have no obvious decrease in Shore A hardness after storeing at 60 ℃ for 60 days.
出处
《含能材料》
EI
CAS
CSCD
北大核心
2016年第11期1108-1113,共6页
Chinese Journal of Energetic Materials
