Hardener Systems of Energetic Binder PolyNIMMO

doi:10.3969/j.issn.1000-1093.2016.08.009

Abstract

Abstract: The curing behaviors and elasticity moduli of poly(3-nitatomethyl-3-methyl oxetane) (polyNIMMO) with toluene diisocyanate (TDI), isophorone diisocyanate (IPDI) and addition product of hexamethylene diisocyanate and water (N-100) are theoretically studied by using Materials Studio. The mechanical properties of the cured systems of polyNIMMO with three curing agents are measured. The results show that the polyurethane reactions among polyNIMMO and three curing agents, TDI, IPDI and N-100, can take place, and the hardener of N-100 and the hardening catalyzer of dibutyltin dilaurate (T₁₂) are the best match with polyNIMMO, which tensile strength and extensibility can be improved to 3.83 MPa and 282%, respectively.

Key words: ordnance science and technology, solid propellant, energetic binder, polyNIMMO, mechanical property, hardener

CLC Number:

V512

LI Ji-zhen, FAN Xue-zhong, ZHANG Guo-fang, YU Hong-jian, TANG Qiu-fan, FU Xiao-long. Hardener Systems of Energetic Binder PolyNIMMO[J]. Acta Armamentarii, 2016, 37(8): 1401-1408.

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