火炸药学报2024，Vol.47Issue(4)：365-371,7.DOI:10.14077/j.issn.1007-7812.202308005
共混GAP基含能热塑性弹性体的氢键行为与力学性能
Hydrogen Bond Behavior and Mechanical Properties of Blended GAP Based Energetic Thermoplastic Elastomers
摘要
Abstract
In order to improve the mechanical properties of glycidyl azide polymer(GAP)thermoplastic elastomers,the hy-drogen bond behavior and mechanical properties of two isocyanate cured elastomer blends were analyzed by DSC,low field NMR,static mechanics and dynamic mechanics testing.The relationship between microstructure and macroscopic properties was established.The results showed that the HMDI cured GAP thermoplastic elastomers and the IPDI cured elastomers exhibi-ted different hydrogen bonding behaviors and mechanical properties due to molecular structure.The elastomers with both ten-sile strength and fracture elongation were obtained by physical blending.The tensile strength was higher than 1.5 MPa at 50℃,and the elongation was not less than 300％at-40℃.Compared with the pure HMDI cured elastomers,the low-tem-perature elongation is increased by about 150％,and the high-temperature tensile strength of the IPDI cured elastomers is in-creased by about 1.4MPa,indicating that the energetic thermoplastic elastomers can be obtained with more balanced perform-ance by blending.关键词
材料力学/聚叠氮缩水甘油醚/GAP/热塑性弹性体/氢键行为/高分子物理共混/高低温力学性能Key words
material mechanics/glycidyl azide polymer/GAP/thermoplastic elastomers/hydrogen bonding behavior/polymer physical blend/high and low temperature mechanical properties分类
军事科技引用本文复制引用
郑梦泽,张宁,刘双,靳鹏,张锡铭,刘文皓,罗运军..共混GAP基含能热塑性弹性体的氢键行为与力学性能[J].火炸药学报,2024,47(4):365-371,7.基金项目
国家自然科学基金(No.22175024) （No.22175024）
爆炸科学与技术国家重点实验室资助项目(No.YBKT22-08) （No.YBKT22-08）
