Article
Biochemistry & Molecular Biology
John J. Guardiola, Josiah E. Hardesty, Juliane I. Beier, Russell A. Prough, Craig J. McClain, Matthew C. Cave
Summary: Through plasma metabolomics analysis, it was found that the plasma metabolome was differentially regulated in polyvinyl chloride workers who developed hepatic hemangiosarcoma, involving various metabolic pathways and biological processes such as inflammation and oxidative stress. Potential biomarkers and ontologies related to hemangiosarcoma pathogenesis were identified.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Geosciences, Multidisciplinary
Zhuozhi Ouyang, Zhiping Zhang, Yao Jing, Linjie Bai, Manyi Zhao, Xinrui Hao, Xiaoqin Li, Xuetao Guo
Summary: This study comprehensively investigated the photo-aging process and mechanisms of polyvinyl chloride (PVC) under different UV irradiation conditions and found that UVC irradiation had the most significant aging effect. These findings provide important evidence for understanding the environmental fate and ecological risks of microplastics in aquatic environments.
Review
Polymer Science
Zouhair Ait-Touchente, Maya Khellaf, Guy Raffin, Noureddine Lebaz, Abdelhamid Elaissari
Summary: PVC recycling is crucial for mitigating environmental impact and reducing greenhouse gas emissions. Challenges such as low yield and high energy consumption exist. European initiatives and collaborations play a key role in promoting PVC recycling.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2023)
Article
Engineering, Environmental
Xiaolin Chen, Xianglan Bai
Summary: Polyvinyl chloride (PVC)-containing waste streams are difficult to recycle due to the high chlorine content. A novel recycling approach was developed to leverage PVC as an asset. Co-conversion of red oak and PVC in a green solvent resulted in the production of valuable compounds and chlorine-free solid fuels.
Article
Engineering, Environmental
Zhuozhi Ouyang, Shuxing Li, Manyi Zhao, Quzong Wangmu, Rui Ding, Chuanqi Xiao, Xuetao Guo
Summary: This study investigates the aging behavior of PVC accelerated by UV/PS system, showing significant changes in surface morphology and chemical features, as well as the production of smaller particles and oxygen-containing functional groups. The process induced oxidation reactions predominantly by sulfate radical and reactive oxygen species, leading to the promotion of aging process.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Hejie Yu, Junshen Qu, Yang Liu, Huimin Yun, Xiangtong Li, Chunbao Zhou, Yajie Jin, Changfa Zhang, Jianjun Dai, Xiaotao Bi
Summary: Co-pyrolysis of sophora wood and PVC effectively reduces chlorine emissions and promotes chlorine retention in char. Lignin has the most significant effects on reducing gas phase chlorine emission and achieving chlorine immobilization, with chlorine mainly existing in the form of sodium chloride in the char of lignin-PVC co-pyrolysis. Co-pyrolysis of lignocellulosic biomass and PVC provides a practical pathway for utilization of PVC waste in an environmentally friendly manner, realizing efficient chlorine retention and significantly reducing chlorine-related emissions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Environmental
Mengyan Bi, Wei Liu, Xiaoyu Luan, Muyang Li, Min Liu, Wenqiu Liu, Zhaojie Cui
Summary: This study systematically analyzed the metabolism of PAEs in PVC products in China from 1958 to 2019, showing a total consumption of 29.2 Mt over 60 years and in-use stocks of 5.0 Mt by 2019. Construction materials were consistently the biggest consumers of PAEs, leading to a total PAE loss of 22.7 Mt.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Instruments & Instrumentation
Justin Neubauer, Zakai J. Olsen, Zachary Frank, Taeseon Hwang, Kwang J. Kim
Summary: This study investigates the sensing properties of polyvinyl chloride (PVC) gels as soft electroactive polymers (EAPs) for soft robotic applications. It demonstrates the high sensitivity of PVC gels in mechanoelectrical transduction and proposes a theoretical framework for this process. The study also uncovers an interesting phenomenon and examines the hysteresis effect. Overall, the research showcases the mechanoelectric ability of PVC gels and provides a foundation for further application development.
SMART MATERIALS AND STRUCTURES
(2022)
Article
Construction & Building Technology
Rabindra Kumar Padhan, Anand Sreeram, Chandra Sekhar Mohanta
Summary: This study focuses on the chemical modification of PVC into additives and its subsequent use as a performance enhancing modifier for bitumen. The preliminary laboratory studies showed that the binders modified with the additives exhibited significantly improved anti-stripping properties and overall rheological performance.
ROAD MATERIALS AND PAVEMENT DESIGN
(2021)
Article
Engineering, Environmental
Xiaoluan Lu, Xiaoqian Ma, Zhen Qin, Xinfei Chen, Limei Chen, Yunlong Tian
Summary: The study found that the co-hydrothermal carbonization method can efficiently convert sewage sludge and polyvinyl chloride into hydrochar, removing heavy metals and reducing toxicity. The performance of hydrochar is influenced by the mixing ratio, with a 7:3 ratio of SS to PVC showing the best fuel properties.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Metallurgy & Metallurgical Engineering
Guang Wang, Hong-qiang Zhang, Jing-song Wang, Qing-guo Xue
Summary: The presence of PVC in incineration processes of municipal solid waste can cause environmental problems. The energy-intensive ironmaking sector in the iron and steel industry provides a potential path for the collaborative utilization of waste plastics. Gasification experiments and analysis showed that PVC char has the best gasification ability and the smallest activation energy, possibly due to its unique graphitization degree.
JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL
(2022)
Article
Energy & Fuels
Gamzenur Ozsin, Melis Alpaslan Takan, Arda Takan, Ayse Eren Putun
Summary: This study aims to estimate the mass loss of PVC during pyrolysis and combustion using an artificial neural network (ANN) model. The results show that ANN models can accurately predict complex systems with high R-2 values.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Polymer Science
Mohammed Al-Yaari, Ibrahim Dubdub
Summary: The pyrolysis of waste PVC is a promising treatment method, with kinetics and thermodynamics of the process investigated using various models to determine activation energies and suitable solid-state reaction mechanisms for the two reaction stages. The study confirmed that both reactions are endothermic and nonspontaneous, with the potential for promising bioenergy production. Additionally, a highly efficient artificial neural network model was developed to predict weight loss during PVC pyrolysis based on temperature and heating rate.
Article
Materials Science, Composites
Diego Valdevino Marques, Gabriel Oscar Cremona Parma, Igor Fagundes Valezan, Ana Carolina de Aguiar, Bruno Afonso Buchele Mendonca, Americo Cruz Junior, Luciano da Silva, Florentino Soriano Corral, Saul Sanchez, Ricardo Luis Barcelos, Rachel Faverzani Magnago
Summary: This study investigated the effects of adding PVC residues and cement/alumina trihydrate on the production of fire-resistant thermal-acoustic insulation material. The composites showed lower thermal conductivity and improved flammability resistance compared to traditional materials like perforated brick. Additionally, the use of PVC/cement/alumina trihydrate composites resulted in cost savings and reduced carbon dioxide emissions, contributing to a more sustainable and environmentally responsible industry.
POLYMER COMPOSITES
(2021)
Article
Energy & Fuels
Zhiyuan Li, Yaji Huang, Zhicheng Zhu, Haoqiang Cheng, Jiaqi Zhao, Mengzhu Yu, Wentao Xu, Qi Yuan, Tengfei He, Sheng Wang
Summary: This study investigates the behavior of heavy metals during co-pyrolysis of sewage sludge and PVC plastics. The results indicate that temperature and added PVC/CaO have an effect on the content of As,Pb,and Zn in biochar, with CaO having the opposite effect. PVC inhibits the transformation of heavy metals. Higher temperature and extra CaO can reduce the ecological risk of heavy metals, while the added PVC increases the risk.