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Performance Analysis of Natural Gas Polyethylene Pipes Based on the Arrhenius Equation
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Researchers applied the Arrhenius equation to analyze aging and performance degradation in polyethylene gas pipelines under complex environmental conditions, addressing growing concerns about the long-term structural integrity of PE pipe materials widely used in natural gas distribution infrastructure.
With the widespread use of polyethylene (PE) materials in gas pipelines, the problem related to the aging of these pipes has attracted increasing attention. Especially under complex environmental conditions involving temperat... | Find, read and cite all the research you need on Tech Science Press
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Researchers simulated the long-term aging of high-density polyethylene pipeline welded joints in water at various temperatures and found that higher temperatures caused more significant degradation of mechanical properties. The study used multiple characterization techniques to reveal changes in the molecular structure of the joints during hydrothermal aging. These findings help predict the service life of HDPE pipelines used in ocean energy transportation and inform strategies to mitigate aging-related failures.
Change of some characteristics of HDPE pipes tested in Nghe An province seawater
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This Vietnamese study characterized changes in the structure, morphology, crystallinity, thermal properties, and stability of high-density polyethylene pipes after extended exposure to natural seawater. The results reveal how marine immersion gradually degrades HDPE pipe material properties.
Environmental stress cracking of chemically aged HDPE-100 gas pipe under impact fracture mode
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This study examined how chemical aging — simulating long-term environmental exposure — affects the stress cracking behavior of high-density polyethylene (HDPE) pipes under impact conditions. Understanding how HDPE pipes degrade is relevant to microplastic pollution because aging plastic infrastructure releases small plastic particles into surrounding soil and water.
Polyethylene Resistance to Oil and Associated Water
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This paper reviewed how polyethylene behaves when exposed to petroleum oils and associated water in field conditions. The study examined degradation mechanisms, finding that certain oils and water compositions can accelerate polymer breakdown. Understanding polyethylene's chemical resistance is important for designing durable pipes and containers in the oil and gas industry.
Resin Pellets Aging and Degradation Investigation from Long Term in Situ Experiment: First Results
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Researchers conducted long-term in situ aging experiments on resin pellets — a major category of primary microplastics — to track their physical and chemical degradation over time in real-world conditions. Understanding how pellets degrade in the environment helps predict when and how they fragment into smaller, more bioavailable particles capable of entering food chains and human bodies.
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