石墨烯改性聚酯过渡层抗迁移性能研究OA

To address the interfacial failure caused by plasticizer migration in HTPE propellants,it is necessary to further im-prove the anti-migration performance of the transition layer.Hydroxylated graphene(GOH)was prepared from reduced gra-phene oxide(RGO)via the Fenton reaction and incorporated into the transition layer.The products and the modified transition layers were characterized.The migration behavior of the plasticizer in the transition layer was investigated by immersion and lamination tests.Migration kinetics was established based on the Fick model.The results show that hydroxyl groups were suc-cessfully introduced onto the RGO surface,and GOH maintained a complete lamellar structure.The incorporation of RGO and GOH enhanced the mechanical properties and crosslink density of the transition layer.The addition of RGO reduced the migra-tion rate of Bu-NENA in the liner at 60 ℃ from 6.8％to 3.8％,while GOH further reduced it to 2.5％.The graphene-modi-fied transition layer exhibits excellent mechanical and anti-migration performance,providing a feasible strategy for the long-term storage of HTPE propellants.