| Development of Graphene Modified Protective Coating for Aircraft Soft Rubber Oil Tank |
| Received:February 05, 2021 Revised:February 05, 2021 |
| DOI：10.12136/j.issn.1000-890X.2021.06.0431 |
| Key Words: aircraft；soft rubber oil tank；graphene；polyurethane protective coating；aging resistance；oil resistance |
| Author Name | Affiliation | E-mail | | XUE Ruili | COMAC Shanghai Aircraft Design & Research Institute | songhh_tl@163.com | | SONG Huanhuan* | North Paint & Coatings Industry Research and Design Institute Co.，Ltd | songhh_tl@163.com | | FAN Chao | COMAC Shanghai Aircraft Design & Research Institute | |
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| Abstract: |
| The graphene modified protective coating for aircraft soft rubber oil tank was prepared using elastic polyurethane，and the influencing factors of polyurethane synthesis and the effect of graphene mass fraction on the coating properties were studied.The results showed that，the optimum conditions for the polyurethane synthesis were as follows：the hydroxyl content of the hydroxyl terminated polyester[the mass（g） of hydroxyl group per mole hydroxyl terminated polyester] was 800，and the isocyanate group/hydroxyl molar ratio was 1.8/1.It was found that the graphene dispersion in the coating was good without any agglomeration.With the increase of the graphene mass fraction，the elongation at break of the coating slightly decreased，but the tensile strength，fatigue resistance，chemical resistance and aging resistance were improved.When the mass fraction of the graphene reached 0.007 5，the comprehensive properties of the coating was good，which fully met the requirements of national standards. |
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