Research on hydrogen permeability of polyamide 6 as the liner material for type Ⅳ hydrogen storage tank

Yu, Sun; Lv, Hong; Zhou, Wei; Zhang, Cunman

doi:10.1016/j.ijhydene.2020.06.174

Cited by 60 publications

(51 citation statements)

References 34 publications

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“…Some research works can be found in literature in which 2 D filler strategies were used in rubber applications to reduce the gas permeability. Sun et al [40] filled a PA 6 grade with lamellar silicate nanofiller (LIC) and studied the hydrogen permeability in different pressure (25 MPa,35 MPa, 50 MPa) and temperature conditions (-10 C, 25 C, Figure 10. Increased tortuous path length, generated by orthogonally arranged two-dimensional obstacles.…”

Section: Discussionmentioning

confidence: 99%

“…The liners generally provide the intended gas tightness and plastic liners are lightweight, cost-efficient, corrosion resistance, and avoid hydrogen embrittlement compared with metallic liners. [10,16,19,24,29,40] The latest, type V pressure vessel, is fully made of composites without a liner has 20% less weight compared with type IV, however, it is still only able to handle low-pressure ranges and still needs a breakthrough. [16] Generally, from production to the HFS facility the hydrogen gas is supplied through tube trailers or pipelines at relatively lower pressure.…”

Section: Introductionmentioning

confidence: 99%

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A Review on Applicability, Limitations, and Improvements of Polymeric Materials in High-Pressure Hydrogen Gas Atmospheres

et al. 2021

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Typically, polymeric materials experience material degradation and damage over time in harsh environments. Improved understanding of the physical and chemical processes associated with possible damage modes intended in high-pressure hydrogen gas exposed atmospheres will help to select and develop materials well suited for applications fulfilling future energy demands in hydrogen as an energy carrier. In high-pressure hydrogen gas exposure conditions, damage from rapid gas decompression (RGD) and from aging in elastomeric as well as thermoplastic material components is unavoidable. This review discusses the applications of polymeric materials in a multi-material approach in the realization of the "Hydrogen economy". It covers the limitations of existing polymeric components, the current knowledge on polymeric material testing and characterization, and the latest developments. Some improvements are suggested in terms of material development and testing procedures to fill in the gaps in existing knowledge in the literature.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Review on Applicability, Limitations, and Improvements of Polymeric Materials in High-Pressure Hydrogen Gas Atmospheres

et al. 2021

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“…3,4 In this regard, nylon 6 has become a potential choice as a liner material (in type IV compressed H 2 storage vessels) due to its high crystallinity and strong intra and inter-molecular H-bonding interactions which restricted the chain mobility both in the crystalline and the amorphous regions. 5–8 However, polymeric liner materials also suffer from several issues, e.g. buckling, blistering, etc.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of impermeable dense architecture containing covalently stitched graphene oxide/boron nitride hybrid nanofiller reinforced semi-interpenetrating network for hydrogen gas barrier applications

et al. 2022

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“…The permeation efficiency is related to not only the equilibrium features but also the kinetics of both processes under high-pressure environments 4,5 . In particular, an investigation of the saturated equilibrium and related physical stability in hydrogen permeation is essential for designing industrial equipment, reducing operating costs, gaining insights into adsorption and finally determining the appropriate exposure time to hydrogen under high pressure in cycling testing 6,7 .…”

Section: Introductionmentioning

confidence: 99%

Volume Dependence of Hydrogen Sorption and Desorption Diffusion in Cylindrical Polymers

Jung¹,

Kim²,

Baek³

et al. 2021

Preprint

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We have investigated the volume effects on hydrogen diffusion properties in both sorption and desorption processes by employing a volumetric analysis technique. The total uptake (𝐶∞), total desorbed content (𝐶0), sorption diffusion coefficient (Ds), desorption diffusion coefficient (Dd), sorption and desorption equilibrium time of hydrogen in two rubbery polymers are determined relative to the diameter and thickness of the cylindrical sample in the two processes. 𝐶∞ and 𝐶0 do not demonstrate the appreciable volume dependence for all rubbers. The identical values in 𝐶∞ and 𝐶0 indicate the reversibility between sorption and desorption, which is interpreted by the occurrence of physisorption rather than chemisorption by introducing hydrogen molecules. The larger Dd values in the desorption process than Ds may be attributed to increased amorphous phase and volume swelling caused by increased hydrogen voids and polymer chain scission after decompression. The time to reach equilibrium in both sorption and desorption processes was found to be linearly proportional to the square of thickness above an aspect ratio of 3.7, which is consistent with the numerical simulations based on the solution of Fick’s law. This finding could be used to predict the equilibrium adsorption time depending on the sample size in the polymer.

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Research on hydrogen permeability of polyamide 6 as the liner material for type Ⅳ hydrogen storage tank

Cited by 60 publications

References 34 publications

A Review on Applicability, Limitations, and Improvements of Polymeric Materials in High-Pressure Hydrogen Gas Atmospheres

A Review on Applicability, Limitations, and Improvements of Polymeric Materials in High-Pressure Hydrogen Gas Atmospheres

Fabrication of impermeable dense architecture containing covalently stitched graphene oxide/boron nitride hybrid nanofiller reinforced semi-interpenetrating network for hydrogen gas barrier applications

Volume Dependence of Hydrogen Sorption and Desorption Diffusion in Cylindrical Polymers

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