Curing Reaction Kinetics and Process of PBX-based ATP

doi:10.3969/j.issn.1000-1093.2021.09.009

Abstract

Abstract: The curing test method and curing process of polymer bonded explosives（PBX）-based polyfunctional glycidyl azide polymer（ATP）were experimentally studied to set the curing process parameters. In the experiment，the non-isothermal differential scanning calometry method and rheological method were used to study the changes in curing heat and curing storage modulus，and the curing reaction kinetic equation and curing process parameters of PBX were obtained. The experimental results show that the rheological method can be used to characterize the curing reaction of PBX，the reaction kinetic equation is dαdt=2.0×10 ¹⁹exp [JB<2(]－1.51×10 ⁵RT[JB>2)]α^0.42·(1－α) ^1.30. When the ATP-based PBX is cured directly at 60 ℃，a large number of pores appear in PBX，the 30 ℃ and 60 ℃ step curing process is adopted without pores in the PBX; the optimal curing time of ATP-based PBX at 30 ℃ is 68 h，and the optimal curing time at 60 ℃ is 66 h.

Key words: pouringpolymerbondedexplosive, polyfunctionalglycidylazidepolymer, curingtime, curingkineticsequation, rheologicalmethod, curingprocess

CLC Number:

TQ564.3
TJ55

CHEN Chunyan， WANG Xiaofeng， NAN Hai. Curing Reaction Kinetics and Process of PBX-based ATP[J]. Acta Armamentarii, 2021, 42(9): 1888-1894.

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