费托蜡碳链分布对乳胶基质储存稳定性影响的实验研究OA

To elucidate the regulatory mechanism of Fischer-Tropsch wax carbon chain structure on the performance of emul-sion explosive matrix,four types of Fischer-Tropsch waxes with distinct carbon chain distributions(short chains below C16,main chains between C16 and C32,and long chains above C32)were selected as the oil-phase materials to prepare the emul-sion matrix.The laser particle size analysis and other methods were employed to investigate the effect of Fischer-Tropsch wax carbon chain distribution on the microscopic characteristics of the emulsion matrix.The high-low temperature cycling aging tests were conducted on the emulsion explosive matrix,where the changes in conductivity and dissolution loss rate were used to e-valuate the long-term storage stability of the emulsion matrix.Additionally,the detonation velocity tests were performed to verify the detonation reliability of the aged matrix.The results indicate that when the Fischer-Tropsch wax is dominated by long carbon chains,supplemented with an appropriate proportion of main chains,and with strictly controlled short-chain content(as in Sample 3),the prepared emulsion matrix exhibits the smallest average particle size(D[3,2]of 2.602 μm),PDI is 2.260,maintains a viscosity of 171 450 mPa·s at 75℃,and possesses the strongest anti-aging capability.After 20 days of high-low temperature cycling,its detonation velocity still reaches 4354m/s,with a decay amplitude of only 16.02％.An appropriate content of long carbon chains in the Fischer-Tropsch wax is the optimal choice for achieving high storage stability in the emulsion matrix.