We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Accelerated Aging Process of Carbon Black-Reinforced PVC (CB-PVC) Insulation by UVB-Induced Chemical Degradation
AI summary Read the abstract
Researchers examined how UVB radiation degrades carbon black-filled PVC composites, finding a 30% drop in dielectric strength and 28% increase in surface roughness after 500 hours of exposure. Degradation followed a three-phase pattern driven by radical propagation and photo-oxidation, revealing how UV exposure compromises cable insulation materials.
This study examines the UVB-induced (Ultraviolet B radiation) degradation of carbon black-filled polyvinyl chloride (CB-PVC) composites. After 500 h of exposure, the material exhibited a 30.13% drop in dielectric strength, a 27.6% increase in surface roughness, and significant pit formation, indicating substantial physicochemical deterioration. Degradation followed a triphasic kinetic pattern: an initial induction phase, an autocatalytic acceleration, and a stabilization phase, driven by radical propagation and photo-oxidation. These findings highlight the complex role of UVB in the photodegradation of cable sheeting.
More Papers Like This
Characterization of PVC/CaCO3 Nanocomposites Aged Under the Combined Effects of Temperature and UV-Radiation
AI summary Read the abstract
This study examined how micro- and nanoscale calcium carbonate fillers affect the aging resistance and dielectric properties of PVC composites under prolonged UV and thermal stress, finding that higher CaCO3 concentrations improved dielectric stability and that particle size and dispersion quality significantly influenced long-term material performance.
Photoaging behavior of black mulch films: the dual roles of carbon black
AI summary Read the abstract
Researchers compared the UV-induced aging of black polyethylene mulch film (containing carbon black) and transparent mulch film, finding that carbon black initially acts as an antioxidant but ultimately accelerates aging by generating hydroxyl radicals, making black mulch a higher risk for microplastic release than transparent alternatives.
Assessment of the Suitability and Accuracy of Different Methods to Determine the Degree of Photodegradation of High- and Low-Density Polyethylene, Polypropylene, Polyvinyl Chloride, Nylon and Polystyrene Microplastics
AI summary Read the abstract
This study examined plastic entrapment by riparian plants along riverbanks and streambanks, quantifying how different vegetation types capture floating plastic debris during high-flow events. The findings demonstrate that riparian vegetation functions as a natural plastic filter, reducing downstream transport of plastic pollution.
Accelerated aging of polyvinyl chloride microplastics by UV irradiation: Aging characteristics, filtrate analysis, and adsorption behavior
AI summary Read the abstract
Researchers systematically investigated how UV irradiation ages polyvinyl chloride microplastics, characterizing changes in their physical and chemical properties and the organic matter they release. The study established quantitative relationships between the degree of aging and the capacity of microplastics to adsorb environmental pollutants like malachite green and sulfamethoxazole, providing a tool for predicting contaminant accumulation on weathered microplastics in natural environments.
The Ultraviolet Irradiation Aging Characteristics of Microplastics in Soil under the Action of Biochar
AI summary Read the abstract
Researchers characterized how microplastics change physically and chemically under ultraviolet irradiation aging, documenting surface cracking, yellowing, and shifts in chemical functional groups. These aging signatures are important for understanding the environmental fate and increased toxicity of weathered microplastics.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.