Erosion of POSS-polyimide films under hypervelocity impact and atomic oxygen: The role of mechanical properties at elevated temperatures

Verker, Ronen; Grossman, Eitan; Eliaz, Noam

doi:10.1016/j.actamat.2008.10.054

Cited by 115 publications

(84 citation statements)

References 12 publications

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“…Cheng et al found that the tensile strength of bis-ADA-DCB was 121 MPa [26] . Verker et al reported that the tensile strength of PMDA-ODA presented a higher value (140 MPa) [27] . The structure of PMDA-ODA is similar to PI in this work.…”

Section: Mechanical Propertiesmentioning

confidence: 99%

The application of highly soluble amine-terminated aromatic polyimides with pendent tert-butyl groups as a tougher for epoxy resin

Zhao

Wang

2015

Chin J Polym Sci

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Polyimides (PIs) with various molecular weights synthesized via the reaction of aromatic diamine monomer containing tert-butyl groups with aromatic dianhydride were highly soluble in common organic solvents and some epoxy resins at room temperature. These PIs can be incorporated in the absence of organic solvent into epoxy resin E51 with the loading below 2 wt% forming EP-PI composites. No phase separation is observed by SEM on cryogenically fractured surfaces of EP-PI composites. The PI can improve mechanical properties, especially impact strength. Adding 2 wt% PI-1.5W, the impact strength reaches to 55 kJ/m 2 with the increase in tensile and flexural strengths by 14% and 3%, respectively. SEM analyses for the fracture surface suggest that PI reduces the crosslink density, improves the plasticity of epoxy resin and changes the mode of fracture from fragile to ductile. Moreover, the glass transition temperature of EP-PI composites was found to increase to a significant extent.

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Section: Mechanical Propertiesmentioning

confidence: 99%

The application of highly soluble amine-terminated aromatic polyimides with pendent tert-butyl groups as a tougher for epoxy resin

Zhao

Wang

2015

Chin J Polym Sci

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“…It has been demonstrated that octafunctioalized POSS (polyhedral oligomeric silsesquioxanes) offers an efficient route for the development of novel hybrid nanocomposites. The versatile nature of POSS enhances thermal, mechanical properties, oxidative stability, flame retardance, abrasion resistance and decreases density and water uptake of its polymer composites [8][9][10][11][12][13][14][15][16][17][18][19][20]. The cubic silsesquioxane unit possesses a well-defined nanometer-sized structure with high surface area, controlled porosity, and various functionalities.…”

Section: Introductionmentioning

confidence: 98%

Aminoethylaminopropylisobutyl POSS—Polyimide nanocomposite membranes and their gas transport properties

Dasgupta

Sen

Banerjee

2010

Materials Science and Engineering: B

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“…Due to long-term exposure to the surface of spacecraft, affected by various spatial environmental effects, its mechanical properties may be degraded due to the harsh environment of space. The corrosion rate and mechanical properties of POSS polyimide film under the synergistic effect of atomic oxygen and space debris were studied by R. Verker [1]. The degradation of mechanical properties of polyimide film under space flight test environment is studied by Hiroyuki Shimamura [2].…”

Section: Introductionmentioning

confidence: 99%

Degradation and Mechanism of Mechanical Properties of Polyimide Film Irradiated by Gamma Ray

Shen

Dai

Liu

et al. 2018

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. Polyimide (PI) films might be damaged under space high energy particle irradiation. In this paper, the mechanical properties and mechanism of polyimide film is studied with the 60 Co radiation source, the thermo-gravimetric analysis and the XPS analysis. Significant total dose effect is found in the mechanical properties of the PI film under gamma ray radiation. The tensile strength and rupture elongation of polyimide film increase first and then decrease exponentially with the increase of irradiation dose. The corresponding initial decomposition temperature of the gamma ray-radiated polyimide film changed from 570°C to 590°C for weight-loss ratio of 2%. From XPS analysis, it can be found that there were rupture and crosslink of chemical bond in polyimide film. In early stage of gamma ray radiation, the rupture of C-N bond and following crosslink is for the increase of mechanical properties of polyimide film, and as the increase of radiation, the rupture of C=O and -N(CO)bond, formation of C-N bond, release of N was for the decrease of mechanical properties of polyimide films.

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Erosion of POSS-polyimide films under hypervelocity impact and atomic oxygen: The role of mechanical properties at elevated temperatures

Cited by 115 publications

References 12 publications

The application of highly soluble amine-terminated aromatic polyimides with pendent tert-butyl groups as a tougher for epoxy resin

The application of highly soluble amine-terminated aromatic polyimides with pendent tert-butyl groups as a tougher for epoxy resin

Aminoethylaminopropylisobutyl POSS—Polyimide nanocomposite membranes and their gas transport properties

Degradation and Mechanism of Mechanical Properties of Polyimide Film Irradiated by Gamma Ray

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