Qian, Min; Xuan, Xiao Yang published the artcile< Hyperthermal atomic oxygen durable transparent silicon-reinforced polyimide>, Electric Literature of 4415-87-6, the main research area is polyimide POSS erosion surface property atomic oxygen.
A clear poly(amic acid) was reinforced by a trisilanolphenyl polyhedral oligomeric silsesquioxane (POSS) by direct dissolution, and transparent silicon-reinforced polyimide (Si-RPI) films with different POSS loadings were obtained after curing, showing high transmittance of >90% within 380-800 nm. The Si-RPI films were exposed to a ground hyperthermal at. oxygen (AO) beam. The erosion depths and derived erosion yields of the materials decreased with POSS loadings. At a 20 wt% POSS loading, the Si-RPI showed an erosion yield of 0.13 x 10-24 cm3 atom-1 at a fluence of 2.79 x 1020 O atoms cm-2. Surface morphol. and element composition characterization on Si-RPI indicated that SiOx-based passivating layers were formed on surfaces upon the hyperthermal AO attack. This study suggests a facile way of reinforcing Si into transparent polyimide for a promising candidate of spacecraft coating material operating in low Earth orbit.
High Performance Polymers published new progress about Erosion (wear). 4415-87-6 belongs to class tetrahydrofurans, and the molecular formula is C8H4O6, Electric Literature of 4415-87-6.
Referemce:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem