A study of the mechanical properties of the NEPE binders by molecular dynamic simulations and experiments
La Shi, Li Ren, Yang Li, Xiaolong Fu, Saiqin Meng, Jiangning Wang
Abstract
value was 45 °C lower than that of PEG400-N100. The mechanical properties illustrated that the ultimate tensile strength and Young's modulus of PEG400/N-100 were both to an extent higher than that of PEG400/HDI in the temperature range of -40 °C to 50 °C, according to the results provided by a universal tensile test machine. The experimental results were in good agreement with the simulation analysis. This work can help us to have an efficient comprehension on the crosslinking structures and micro-property relationships of the NEPE binders and act as a guidance for designing applicable polyurethanes in propellant applications.
Topics & Concepts
Molecular dynamicsChemistryMaterials scienceChemical engineeringComputational chemistryEngineeringEpoxy Resin Curing ProcessesCorrosion Behavior and InhibitionPolymer Nanocomposites and Properties