Enhancements in LOX compatibility and fracture toughness of carbon fiber/epoxy composite for liquid oxygen cryotank by simultaneously introducing Al(OH)3 and phosphorous-nitrogen flame retardants

Long, Jun-fei; Zhou, Zili; Wu, Tao; Li, Yuanqing; Fu, Shao‐Yun

doi:10.1016/j.coco.2023.101562

Cited by 11 publications

(1 citation statement)

References 19 publications

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“…In addition, the synthesis process of macro-molecule organic flame retardants is usually complex with low yields. Up to now, inorganic flame retardants are often used in flame retardant EP because of their smokeless, non-toxic and inexpensive characteristics [ 14 , 15 , 16 ]. As a kind of inorganic filler, montmorillonite (MMT) has the advantages of small size, high thermal stability and high intercalation capacity [ 17 ], which has received special attention in the field of flame retardants [ 18 , 19 ].…”

Section: Introductionmentioning

confidence: 99%

Bio-Inspired Iron-Loaded Polydopamine Functionalized Montmorillonite as an Environmentally Friendly Flame Retardant for Epoxy Resin

Lan

Wei

et al. 2023

Molecules

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As an important thermosetting material, flame-retardant epoxy resin has various applications in the aerospace, chemical, and electronics industry, and other fields. However, the flame retardancy of epoxy resins is often improved at the expense of mechanical performance. The contradiction between flame retardancy and mechanical properties seriously impedes the practical applications of epoxy resin (EP). Herein, iron-loaded polydopamine functionalized montmorillonite (D-Mt-Fe3+), which was prepared by dopamine, iron chloride and montmorillonite in an aqueous solution, was introduced to prepare iron-loaded polydopamine functionalized montmorillonite/epoxy resin composites (D-Mt-Fe3+/EP). As expected, D-Mt-Fe3+/EP-10 with 10 phr of D-Mt-Fe3+ passed the UL-94 V-0 rating, achieved a limiting oxygen index (LOI) value of 31.0% and reduced the smoke production rate (SPR) and total smoke production (TSP), indicating that the introduction of D-Mt-Fe3+ could endow EP with satisfactory flame retardancy through the radical scavenging function of dopamine in the gas phase and the catalytic charring effect of iron ions, respectively. Encouragingly, the mechanical property was also enhanced with the flexural strength increased by 25.5%. This work provided an attractive strategy for improving both the mechanical properties and fire resistance of EP, which greatly broadened their applications in the chemical industry and electronics field, etc.

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Section: Introductionmentioning

confidence: 99%

Bio-Inspired Iron-Loaded Polydopamine Functionalized Montmorillonite as an Environmentally Friendly Flame Retardant for Epoxy Resin

Lan

Wei

et al. 2023

Molecules

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Investigation on the leakage resistance of metal‐fiber‐metal pressure vessel coupled with deformation

Zhang,

Zhan,

Zhao

et al. 2024

Polymer Composites

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This work focused on the leakage of the composite pressure vessel with a structure consisting of an aluminum alloy inner liner, a composite winding layer, and an aluminum covering. Through applying the finite element simulation approach and leakage rate test, it was found that the average strain of the winding layer in the lap region at the pressure of 46 MPa is 0.0078. Additionally, the leakage rate of the covering adhesive joint was investigated by considering the deformation, revealing that the leakage rate increases with increasing test pressure. The leakage rate at the lap region with a length of 18 mm is 2.05 × 10−7 Pa·m3/s at 0.0078 strain decreasing by 1.46 and 2.31 times compared to those under 12 and 7 mm lengths, respectively. The leakage rate exhibits a strict inverse correlation with the length of the leakage path under a pressure of 0 MPa. Additionally, when the deformation remains below the critical strain threshold (approximately 0.6%), the relationship between pressure and leakage rate shows a linear positive correlation. When the deformation of the component exceeds the critical strain threshold, the leakage rate of the component is significantly affected by its deformation and an increase in overall deformation results in a greater increase in leakage rate. The relationship between the two exhibits a non‐linear trend. This work provides strong technical support for the leakage assessment of composite pressure vessels.Highlights Deformation of the pressure vessel was analyzed through theoretical and simulation approaches. Establishing the relationship between deformation and pressure in metal–metal lap structures. Leakage analysis for different metal–metal lap lengths and deformation conditions.

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Cryogenic mechanical and hydrogen-barrier properties of carbon fiber composites for type V cryo-compressed hydrogen storage vessels

Zhang,

Lei,

Zhou

et al. 2023

Composites Communications

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Enhancements in LOX compatibility and fracture toughness of carbon fiber/epoxy composite for liquid oxygen cryotank by simultaneously introducing Al(OH)3 and phosphorous-nitrogen flame retardants

Cited by 11 publications

References 19 publications

Bio-Inspired Iron-Loaded Polydopamine Functionalized Montmorillonite as an Environmentally Friendly Flame Retardant for Epoxy Resin

Bio-Inspired Iron-Loaded Polydopamine Functionalized Montmorillonite as an Environmentally Friendly Flame Retardant for Epoxy Resin

Investigation on the leakage resistance of metal‐fiber‐metal pressure vessel coupled with deformation

Cryogenic mechanical and hydrogen-barrier properties of carbon fiber composites for type V cryo-compressed hydrogen storage vessels

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