Project targets a ballistic backing material (BBM) with controllable formulation/mechanical behavior relationship that passes column drop calibration test at room temperature. The main goal of Phase I is to demonstrate feasibility of prototypes with deformation rates as RP#1, and known/controllable composition, microstructure and mechanical properties. POLYMERights polyester polysulfides (PEPS) show great potential as binders for BBMs. PEPS are flexible and pliable; their viscosity is weakly correlated with temperature, they are non-thixotropic, highly ageing resistant, and keep mixtures viscosity unchanged over broad temperatures range. PEPS are non-hazardous and environmentally-safe, with NFPA ratings Health 0, Flammability 1, Reactivity 0. POLYMERight has already conducted a demonstration trial to ensure that the proposed BBM composition is feasible. PEPS binders, fillers, and their ratios were selected randomly. BBMs were tested at 24C alongside with RP#1 at 38C. BBMs have demonstrated performance that is very close to RP#1, with weak penetration depth/temperature dependency, proving feasibility of achieving the goals of the project. POLYMERight will select best candidates for binders, fillers and plasticizers and establish the components ratio to best approximate the RP#1properties; then conduct all required testing and ensure that the formulation can serve as a prototype for a new generation of BBM.
