氧原子辐射作用下PVDF/POSS纳米复合材料的腐蚀损伤模拟

Simulation of Corrosion Damage for PVDF/POSS Nanocomposites under the Action of Atomic Oxygen Radiation

POSS材料掺杂到PVDF材料中能有效提高PVDF材料的抗氧化性能,同时不影响其高比强度和高比模量。由于实验室环境难以模拟空间环境氧原子对PVDF/POSS纳米复合材料的辐射作用,采用LLAMMPS软件模拟PVDF与PVDF/POSS两种材料在氧原子辐射作用下的腐蚀损伤行为。结果表明:POSS能有效提高材料的抗氧化性能,模拟结果合理科学,可有效指导空间环境中PVDF/POSS材料腐蚀损伤行为的研究。

POSS doped into PVDF material can effectively improve the oxidation resistance of the PVDF without compromising its high specific strength and high specific modulus. Due to the problem that the laboratory environment was difficult to simulate the action of atomic oxygen radiation on PVDF/POSS nanocomposites in the space environment, the LLAMMPS software was used to simulate the damage behaviors of the POSS and PVDF/ POSS under the action of atomic oxygen radiation. The results showed that POSS effectively improved the oxidation resistance. The simulation results were scientific and may rational, and guide the study of damage behavior of PVDF/ POSS in the space environment effectively.