Exploring fatigue characteristics of metallic boss-polymer liner adhesion in hydrogen storage tanks: Experimental insights post surface treatment

Article Materials Science, Multidisciplinary

Estimating the burst pressure of a filament wound composite pressure vessel using two-scale and multi-scale analyses

Roham Rafiee et al.

Summary: This study analyzes the influence of inescapable imperfections associated with fiber arrangement in the filament winding process on the burst pressure of a composite vessel through two-scale analysis and multi-scale modeling.

MECHANICS OF ADVANCED MATERIALS AND STRUCTURES (2023)

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Article Materials Science, Textiles

Experimental Investigation on Underlying Mechanism of LLDPE Based Rotationally Molded BioComposites

P. L. Ramkumar et al.

Summary: Rotational molding is a polymer manufacturing technique used to produce hollow and seamless parts with complex geometries. Linear Low Density Polyethylene (LLDPE) is the most preferred material for this process. This study investigates the use of bio composites made from jute/LLDPE and sugar cane bagasse (SCB)/LLDPE in rotational molding, analyzing processability, mechanical properties, and thermal stability. The addition of fibers, such as SCB and jute, improves the roto moldability and mechanical properties of the end product, with 5% fiber content showing the most significant improvement.

JOURNAL OF NATURAL FIBERS (2023)

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Review Engineering, Multidisciplinary

A review of Type V composite pressure vessels and automated fibre placement based manufacturing

Alexander Air et al.

Summary: Hydrogen is considered a promising energy medium and is often stored in high-pressure composite overwrapped pressure vessels (COPVs). The current state-of-the-art technology, Type V, relies on carbon fiber laminate for structural properties and gas leakage prevention. However, achieving functionality at high pressure poses engineering challenges. The traditional filament winding manufacturing process for COPVs has limitations in design space, but automated fiber placement (AFP) has the potential to overcome these limitations and optimize vessel manufacturing.

COMPOSITES PART B-ENGINEERING (2023)

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Article Polymer Science

Improved balance between dimensional stability, mechanical properties and processability of linear low density polyethylene for rotational molding

Danding Li et al.

Summary: In this study, a combination of crosslinker low-temperature blending and partial chemical crosslinking strategy is employed to enhance the dimensional stability and mechanical properties of LLDPE without sacrificing the melt fluidity. The structure-property relationships in the crosslinked specimens are analyzed based on various methods. The results show that our simple, low-cost and universal strategy not only contributes to a better dimensional stability and significantly improved mechanical properties, but also endow the samples with promising processability and thermal stability.

JOURNAL OF APPLIED POLYMER SCIENCE (2023)

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Review Polymer Science

A comprehensive review to evaluate the consequences of material, additives, and parameterization in rotational molding

Jitender Yadav et al.

Summary: This article reviews the recent literature on different natural fiber and inorganic filler-based polymer composites used in rotational molding (RM). The importance of rotational molding in various industries, particularly in the automobile and aerospace industries, is highlighted. The addition of natural fibers and inorganic fillers to polymer composites in RM can improve their stiffness and strength, overcoming the limitations of the polymer. The study of the materials available for rotational molding and their influence on the mechanical properties of composites is necessary.

JOURNAL OF POLYMER RESEARCH (2023)

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Article Biochemistry & Molecular Biology

The Effect of Cooling Rates on Thermal, Crystallization, Mechanical and Barrier Properties of Rotational Molding Polyamide 11 as the Liner Material for High-Capacity High-Pressure Vessels

Muhuo Yu et al.

Summary: This study investigates the effect of cooling rate on the thermal, crystallization, mechanical, and barrier properties of rotational molding polyamide 11 (PA11). The results show that a slower cooling process leads to higher crystallinity and improved barrier properties. Additionally, as crystallinity increases, the tensile strength, tensile modulus, flexural strength, and flexural modulus increase, while the elongation at break decreases.

MOLECULES (2023)

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Article Engineering, Manufacturing

Direct joining of PP-Al5052 hybrid with high bonding strength by two-step anodization treatment and polymer modification

Mingyong Zhou et al.

Summary: The bonding performance of polymer-metal hybrid (PMH) structures was enhanced by pretreatment with two-step anodization and maleic anhydride-grafted polypropylene (PP-g-MAH). The formation of hierarchical nanopores and branched structures greatly improved the surface wettability. The bonding strength of PP-Al5052 sheet was significantly improved with oxalic acid solution as the electrolyte in the second anodization. Molecular dynamics (MD) simulations revealed the role of MAH groups in enhancing interfacial interactions and the negative effect of phosphate ions on chemical interactions at the interface.

JOURNAL OF MANUFACTURING PROCESSES (2023)

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Article Engineering, Manufacturing

Repairing aluminum-PEEK hybrid metal-polymer joints made by thermo-mechanical joining

Francesco Lambiase et al.

Summary: The repairing process of hybrid multi-material joints made of metal and polymer using friction-assisted joining was investigated. Two main failure mechanisms, aluminum teeth fracture and pull-out, were identified. The adoption of dense texturing strategies increased the joint's properties after repair.

JOURNAL OF MANUFACTURING PROCESSES (2023)

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Article Materials Science, Multidisciplinary

Dynamic response of metal/polymer bilayer composite with optimized surface porosity by experiment and simulation

Jiajin Li et al.

Summary: This study improves the dynamic shear bonding performance of the 5052 aluminum alloy/polymethyl methacrylate interface by optimizing surface porosity, and validates the results through simulation. By fitting the experimental data and simulation curves, the influence of other factors on dynamic bonding performance is evaluated, emphasizing the importance of controlling porosity.

JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T (2023)

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Review Engineering, Chemical

Review of the surface treatment process for the adhesive matrix of composite materials

Jigao Liu et al.

Summary: This research focuses on the surface treatment technology of bonding matrix of composite materials, with carbon fiber reinforced polymer (CFRP) as the research object. The research status at home and abroad is reviewed from the aspects of matrix characteristics, durability, and bonding and stripping effect before and after surface treatment. The influence mechanism of surface treatments on the bonding properties of CFRP is summarized, and the future research focus and direction are prospected. The results show that the bonding effect depends on the mechanical interlocking and adsorption/chemical bonding between the adhesive and CFRP surface. Different surface treatments can significantly improve the preparation quality of the CFRP surface and enhance the bonding ability between CFRP and the adhesive.

INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES (2023)

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Review Chemistry, Physical

Advances on materials design and manufacture technology of plastic liner of type IV hydrogen storage vessel

Xiulei Wang et al.

Summary: The paper discusses the causes of liner failure in type IV hydrogen tanks and analyzes material optimization strategies. By studying aggregate state structures, formulations, and processes, the paper proposes methods such as inorganic functional filler/polymer filler filling composite and laminated orientation. The benefits and drawbacks of different molding techniques are also compared.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2022)

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Article Materials Science, Characterization & Testing

Evaluation of the interfacial adhesion between polymer and metal on polymer-metal hybrids

Achim Frick et al.

Summary: This paper proposes a new method for evaluating the interfacial adhesion between metal and polymer. By recording the helium leakage rate, the tightness of the interface can be determined. Compared to traditional microscopic studies and mechanical tests, this method provides more accurate information on interfacial adhesion.

POLYMER TESTING (2022)

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Article Materials Science, Characterization & Testing

Rotational molding of polylactide (PLA) composites filled with copper slag as a waste filler from metallurgical industry

Mateusz Barczewski et al.

Summary: Research has shown that using waste-based fillers in the production of PLA-based composites can increase hardness and stiffness, with filler concentrations up to 35%. For filler contents below 20%, the composite materials exhibit good structural stability and acceptable mechanical performance. Despite the lack of surface modification, the adhesion between PLA and the filler was beneficial.

POLYMER TESTING (2022)

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Review Energy & Fuels

Application of Filament Winding Technology in Composite Pressure Vessels and Challenges: A Review

Mohammad Azeem et al.

Summary: This article reviews the application of filament winding technology in gas storage and transportation, discussing the challenges and optimization methods in the design and manufacturing process.

JOURNAL OF ENERGY STORAGE (2022)

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Review Energy & Fuels

A Review on Industrial Perspectives and Challenges on Material, Manufacturing, Design and Development of Compressed Hydrogen Storage Tanks for the Transportation Sector

Mariana Pimenta Alves et al.

Summary: Hydrogen fuel cell technology plays a crucial role in the future of advanced mobility and the energy revolution. The feasibility of this technology relies on the development of safe, lightweight, and cost-competitive hydrogen storage solutions. However, the commercialization of hydrogen tanks still faces challenges such as low production rates and high costs. This paper provides insights into the evolving scenario of hydrogen storage solutions in the transportation sector, discussing key issues in tank design and analysis, as well as testing and certification requirements.

ENERGIES (2022)

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Article Engineering, Manufacturing

Enhancement of adhesion between the polymeric liner and the metallic connector of high-pressure hydrogen storage tank

V Motaharinejad et al.

Summary: The manufacturing of hydrogen fuel tanks is crucial for the application of hydrogen fuels in clean and recyclable energy. Rotational molding shows better feedback in assembling boss and liner part without welding defects. Surface treatments like sandblasting and PEG coating can enhance adhesion of polymer to metal, with the combination of sandblasting and PEG coating showing the highest adhesion performance at the metal/polymer interface in rotational molding.

INTERNATIONAL JOURNAL OF MATERIAL FORMING (2021)

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Review Chemistry, Physical

Large-scale compressed hydrogen storage as part of renewable electricity storage systems

Ahmed M. Elberry et al.

Summary: Analyzing the status and potential of compressed hydrogen storage technologies requires a techno-economic chain analysis to evaluate their feasibility; while some technologies are immature, they still show promise for development, highlighting the important role of hydrogen in balancing renewable electricity production.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2021)

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Article Automation & Control Systems