Feasibility study of recycled CRT glass on elastic and radiation shielding properties used as x-ray and gamma-ray shielding materials

Sopapan, P.; Laopaiboon, J.; Jaiboon, O.; Yenchai, Chadet; Laopaiboon, R.

doi:10.1016/j.pnucene.2019.103149

Cited by 48 publications

(8 citation statements)

References 32 publications

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“…Many open loop recycling applications for CRT glass have been explored in literature (Qi et al., 2019) including its use in tile and glass manufacturing (Mueller, Boehm, & Drummond, 2012), lead and copper smelting (Mostaghel & Samuelsson, 2010), cement mortar and concrete production (Liu, Song, Zou, & Li, 2018; Wang, Guo, Dai, Si, & Ma, 2019) and radiation shielding products (Sopapan, Laopaiboon, Jaiboon, Yenchai, & Laopaiboon, 2020). However, because CRT glass is currently categorized as hazardous waste in the United States under the Resource Conservation and Recovery Act (U.S. EPA, 2020), commercial end‐of‐life applications are limited.…”

Section: Resultsmentioning

confidence: 99%

The evolution of consumer electronic waste in the United States

Althaf

Babbitt

Chen

2020

J of Industrial Ecology

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Technological innovation has transformed the role of electronics in education, work, and society. However, rapid adoption and obsolescence of consumer electronics has also led to new concerns about resource consumption and waste management. Past research to address these sustainability challenges has been constrained by data that do not reflect nascent trends in product evolution and consumer adoption, thereby limiting the ability to create and assess proactive solutions. This study presents a dynamic analysis of electronic waste (e‐waste) in the United States using material flow analysis and highly resolved electronic product sales and material composition data. Findings contradict expectations that e‐waste is growing with mobile device proliferation, instead showing that the total mass of the e‐waste stream is actually declining (10% decrease since the estimated peak in 2015) with phase‐out of large, legacy products like cathode ray tube TVs. The evolving material profile of consumer electronics being purchased and disposed sees reduced risks of e‐waste toxicity from hazards like lead and mercury, but greater risks from reliance on scarce metals and product designs that limit recycling. This study highlights concerns that extended producer responsibility regulations currently implemented in many U.S. states for e‐waste management may become less effective if they continue to rely only on mass‐based collection targets. This article met the requirements for a gold‐gold JIE data openness badge described at http://jie.click/badges.

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Section: Resultsmentioning

confidence: 99%

The evolution of consumer electronic waste in the United States

Althaf

Babbitt

Chen

2020

J of Industrial Ecology

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“…58 Phthalonitrile resins would have outstanding ray shielding performance for the preservation of electronic equipment and humans originating from their densely cross-linked network since the density of a material could affect its γ-ray shielding properties. 59 It's outlined that the pure phthalonitrile resins could remain stable and maintain most of the mechanical and thermal performances even under the γ-ray radiation doses of up to 200 kGy. 60 Usually, the shielding efficiency of a material is calculated by the γ-ray attenuation method.…”

Section: Electronic Applications Of Phthalonitrile Resinsmentioning

confidence: 99%

An overview of high-performance phthalonitrile resins: fabrication and electronic applications

Gao

et al. 2022

J. Mater. Chem. C

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“…Additionally, there are reportedly some other advantages of using CRT glass instead of the part of the common aggregate such as reduced segregation, bleeding and drying shrinkage [19] or enhanced resistance to chloride ion penetration [15]. What is more, studies have shown that CRT glass possesses good shielding properties which makes it potentially good for radiation shielding applications [24]. derived that a partial replacement of river sand with CRT glass in the cement mortar increases its shielding properties by having an atomic structure which adversely interacts with the X-radiation and reduces its depth of penetration.…”

Section: Crt Glass In a Concretementioning

confidence: 99%

Discarded Cathode Ray Tube Glass as an Alternative for Aggregate in a Metakaolin-Based Geopolymer

2021

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Cathode Ray Tube (CRT) glass belongs to the group of wastes which are hard to be recycled due to their toxic metals content. Geopolymers are relatively new environmentally friendly materials which allow for the use of different types of wastes within their matrix. The following paper combines both issues and presents a new geopolymer mixture containing discarded CRT glass as a replacement for an aggregate. The main goal of the paper is to describe the basic mechanical behavior of the new type of metakaolin-based geopolymer and to discuss different factors influencing it. After the preliminary research, the mixture containing 50% of CRT glass was chosen for further tests. However, according to results, CRT glass content has no evident influence on flexural or compressive strength. Summarizing the second part of the research, it was decided that the following parameters are optimal from the mechanical, economic and environmental points of view: metakaolin to CRT glass ratio 1:1 (by mass), CRT glass of size up to 4 mm, curing at the room temperature, sodium hydroxide concentration 10 mol/L. According to the authors, the presented geopolymer is a promising building material. Further tests shall be done to describe new material more precisely.

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Feasibility study of recycled CRT glass on elastic and radiation shielding properties used as x-ray and gamma-ray shielding materials

Cited by 48 publications

References 32 publications

The evolution of consumer electronic waste in the United States

The evolution of consumer electronic waste in the United States

An overview of high-performance phthalonitrile resins: fabrication and electronic applications

Discarded Cathode Ray Tube Glass as an Alternative for Aggregate in a Metakaolin-Based Geopolymer

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