CAJ | 학술논문

以 TATB基高聚物粘结炸药（PBX）为原配方，制备了含氟弹性体（F2311）含量分别为0．05％、0．1％、0．2％、0．4％的4种改性配方，采用动态力学分析仪研究了 F2311对 PBX的三点弯曲蠕变性能影响。结果发现，加入0 ．4％的 F2311使 TATB 基 PBX的抗蠕变性能下降，减少 F2311含量有利于提高其抗蠕变性能。含0．05％F2311的改性配方 PBX 在60℃／6 MPa 下的蠕变应变略低于原配方。研究同时采用六元件模型对 TATB基 PBX及其改性配方的蠕变行为进行模拟。得到了蠕变曲线的本构方程，理论预测模型和试验数据吻合良好。根据时温等效原理，获得了 TATB基 PBX及其改性配方在参考温度30℃下的蠕变柔量主曲线，结果表明含0 ．05％F2311的 TATB基 PBX改性配方的长期抗蠕变性能优于原配方 PBX。
이 TATB기고취물점결작약（PBX）위원배방，제비료함불탄성체（F2311）함량분별위0．05％、0．1％、0．2％、0．4％적4충개성배방，채용동태역학분석의연구료 F2311대 PBX적삼점만곡연변성능영향。결과발현，가입0 ．4％적 F2311사 TATB 기 PBX적항연변성능하강，감소 F2311함량유리우제고기항연변성능。함0．05％F2311적개성배방 PBX 재60℃／6 MPa 하적연변응변략저우원배방。연구동시채용륙원건모형대 TATB기 PBX급기개성배방적연변행위진행모의。득도료연변곡선적본구방정，이론예측모형화시험수거문합량호。근거시온등효원리，획득료 TATB기 PBX급기개성배방재삼고온도30℃하적연변유량주곡선，결과표명함0 ．05％F2311적 TATB기 PBX개성배방적장기항연변성능우우원배방 PBX。
In order to investigate the effects of fluoroelastomer( F2311 )content on the creep performance of TATB-based polymer bonded explosive(PBX),4 PBX formations modified by adding 0.05,0.1,0.2,0.4 wt% F2311 were prepared,and their three-point bending creep behavior were studied by dynamic mechanical analyzer. Results show that the addition of 0. 4% F2311 make the creep resistance performance of TATB-based PBX decrease,and with the decrease of F2311,the creep resistance performance of PBX modified formulation enhances. When F2311 content drcreases to 0. 05 wt%,the creep strain of modified formulation is slightly smaller than original formulation at 60 ℃/6 MPa. Meanwhile ,six-element model was used to simulate the creep behaviors of PBX. The constitutive equations of creep curves were obtained. The predicted theoretical results coincide quite well with the experimental data. Based on time-temperature superposition principle,the master curves of TATB-based PBX and its modified formulation are ob-tained at 30 ℃. Results show that compared with original formulation PBX,the long-term creep resistance performance of modified formulation PBX with 0. 05 wt% F2311 is enhanced.