Controlled UV Degradation in Plastics

Baum, B.; Deanin, Rudolph D.

doi:10.1080/03602557308545012

Cited by 26 publications

(4 citation statements)

References 5 publications

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“…The findings are based on a measurement using both lasers to assess UV-degraded plastics [45]. When plastics undergo UV radiation-induced damage, their spectral characteristics are altered, a phenomenon well documented in FTIR spectroscopy [46]. The examined plastics comprised nylon (polyamide, PA) and polyethylene (PE) measured both before exposure to UV radiation (unirradiated) and after exposure (irradiated) [45].…”

Section: Evaluation Of Uv-degraded Plasticsmentioning

confidence: 99%

Multimodal Imaging Using Raman Spectroscopy and FTIR in a Single Analytical Instrument with a Microscope (Infrared Raman Microscopy AIRsight, Shimadzu): Opportunities and Applications

Jurowski,

Noga,

Kobylarz

et al. 2024

IJMS

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Raman spectroscopy and Fourier transform infrared (FTIR) spectroscopy are powerful analytical techniques widely used separately in different fields of study. Integrating these two powerful spectroscopic techniques into one device represents a groundbreaking advance in multimodal imaging. This new combination which merges the molecular vibrational information from Raman spectroscopy with the ability of FTIR to study polar bonds, creates a unique and complete analytical tool. Through a detailed examination of the microscope’s operation and case studies, this article illustrates how this integrated analytical instrument can provide more thorough and accurate analysis than traditional methods, potentially revolutionising analytical sample characterisation. This article aims to present the features and possible uses of a unified instrument merging FTIR and Raman spectroscopy for multimodal imaging. It particularly focuses on the technological progress and collaborative benefits of these two spectroscopic techniques within the microscope system. By emphasising this approach’s unique benefits and improved analytical capabilities, the authors aim to illustrate its applicability in diverse scientific and industrial sectors.

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Section: Evaluation Of Uv-degraded Plasticsmentioning

confidence: 99%

Multimodal Imaging Using Raman Spectroscopy and FTIR in a Single Analytical Instrument with a Microscope (Infrared Raman Microscopy AIRsight, Shimadzu): Opportunities and Applications

Jurowski,

Noga,

Kobylarz

et al. 2024

IJMS

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“…These promote the formation of crosslinks by breaking some covalent bonds in the polymer chain. One method of avoiding UV degradation is the surface addition of some material in the plastic that blocks and absorbs this radiation [65][66][67]. In addition to UV radiation, oxidation is also a form of degradation, in which stabilizers act on oxygen consumption before it reaches the polymer [68].…”

Section: Chemical Propertiesmentioning

confidence: 99%

Conversion of Plastic Waste into Supports for Nanostructured Heterogeneous Catalysts: Application in Environmental Remediation

et al. 2021

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Plastics are ubiquitous in our society and are used in many industries, such as packaging, electronics, the automotive industry, and medical and health sectors, and plastic waste is among the types of waste of higher environmental concern. The increase in the amount of plastic waste produced daily has increased environmental problems, such as pollution by micro-plastics, contamination of the food chain, biodiversity degradation and economic losses. The selective and efficient conversion of plastic waste for applications in environmental remediation, such as by obtaining composites, is a strategy of the scientific community for the recovery of plastic waste. The development of polymeric supports for efficient, sustainable, and low-cost heterogeneous catalysts for the treatment of organic/inorganic contaminants is highly desirable yet still a great challenge; this will be the main focus of this work. Common commercial polymers, like polystyrene, polypropylene, polyethylene therephthalate, polyethylene and polyvinyl chloride, are addressed herein, as are their main physicochemical properties, such as molecular mass, degree of crystallinity and others. Additionally, we discuss the environmental and health risks of plastic debris and the main recycling technologies as well as their issues and environmental impact. The use of nanomaterials raises concerns about toxicity and reinforces the need to apply supports; this means that the recycling of plastics in this way may tackle two issues. Finally, we dissert about the advances in turning plastic waste into support for nanocatalysts for environmental remediation, mainly metal and metal oxide nanoparticles.

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“…Photodegradation of plastics polymers primarily results from the ultraviolet (UV) portion of the spectrum, i.e., wavelengths in a narrow range between 290 and 320 nanometers (nm) [7,8]. These wavelengths do not appreciably penetrate window glass, but do possess energy sufficient to attack polymer molecules.…”

Section: Degradabilitymentioning

confidence: 99%

An Overview of Degradable Plastics

Johnson

1988

Journal of Plastic Film & Sheeting

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Controlled UV Degradation in Plastics

Cited by 26 publications

References 5 publications

Multimodal Imaging Using Raman Spectroscopy and FTIR in a Single Analytical Instrument with a Microscope (Infrared Raman Microscopy AIRsight, Shimadzu): Opportunities and Applications

Multimodal Imaging Using Raman Spectroscopy and FTIR in a Single Analytical Instrument with a Microscope (Infrared Raman Microscopy AIRsight, Shimadzu): Opportunities and Applications

Conversion of Plastic Waste into Supports for Nanostructured Heterogeneous Catalysts: Application in Environmental Remediation

An Overview of Degradable Plastics

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