Results 51 to 60 of about 50,680 (325)

Effect of thermal ageing on space charge in ethylene propylene rubber at DC voltage

IEEE transactions on dielectrics and electrical insulation, 2019
To understand the space charge characteristics of ethylene propylene rubber (EPR) used in MV/HV power cables under thermal stress, the space charge profile is measured by the pulsed electro-acoustic method under 20 kV/mm at 120 and 160 °C.
R. Men, Z. Lei, Jiancheng Song, Yuanyuan Li, Lingyan Lin, Muqin Tian, D. Fabiani, Xiaoxiao Xu   +7 more
semanticscholar   +1 more source

Compatibilization of Poly(Lactic Acid) (PLA) and Bio-Based Ethylene-Propylene-Diene-Rubber (EPDM) via Reactive Extrusion with Different Coagents

Polymers, 2020
Much effort has been made to enhance the toughness of poly (lactic acid) (PLA) to broaden its possible range of usage in technical applications. In this work, the compatibility of PLA with a partly bio-based ethylene-propylene-diene-rubber (EPDM) through
Alexander Piontek, Oscar Vernáez, S. Kabasci   +2 more
semanticscholar   +1 more source

Tests of rubber granules used as artificial turf for football fields in terms of toxicity to human health and the environment

Scientific Reports, 2022
Rubber waste, in the form of granules of styrene butadiene rubber and ethylene-propylene-diene-monomer with a particle size of 0.5 to 4 mm, is broadly used for the construction of synthetic surfaces of sport fields.
Beata Grynkiewicz-Bylina, Bożena Rakwic, Barbara Słomka-Słupik   +2 more
doaj   +1 more source

Co-oxidation kinetic model for the thermal oxidation of polyethylene-unsaturated substrate systems [PDF]

, 2013
The thermal oxidation of polyethylene (PE) impregnated by the methyl esters of unsaturated fatty acids (UFEs) was studied using chemiluminescence, and infra-red spectrophotometry.
FAYOLLE, Bruno, RICHAUD, Emmanuel, RYCHLÝ, Jozef, VERDU, Jacques   +3 more
core   +5 more sources

Functional Materials for Environmental Energy Harvesting in Smart Agriculture via Triboelectric Nanogenerators

Advanced Functional Materials, EarlyView.
This review explores functional and responsive materials for triboelectric nanogenerators (TENGs) in sustainable smart agriculture. It examines how particulate contamination and dirt affect charge transfer and efficiency. Environmental challenges and strategies to enhance durability and responsiveness are outlined, including active functional layers ...
Rafael R. A. Silva, Giulio Fatti, Emanuel Carlos, Guilherme Ferreira, Sumita Goswami, Suman Nandy, Luiz H. C. Mattoso, Elvira Fortunato, Caio G. Otoni, Rodrigo Martins   +9 more
wiley   +1 more source

Solvent‐Free Bonding Mechanisms and Microstructure Engineering in Dry Electrode Technology for Lithium‐Ion Batteries

Advanced Functional Materials, EarlyView.
Dry electrode technology revolutionizes battery manufacturing by eliminating toxic solvents and energy‐intensive drying. This work details two promising techniques: dry spray deposition and polymer fibrillation. How their unique solvent‐free bonding mechanisms create uniform microstructures for thicker, denser electrodes, boosting energy density and ...
Yuhao Liang, Hao Long, Zimo Huang, Ting He, Xueming Chen, Meng Li, Hao Chen, Shanqing Zhang   +7 more
wiley   +1 more source

Compressive behaviors of 3D printed polypropylene-based composites at low and high strain rates

Polymer Testing, 2021
3D-printed composites have promising potential for applications as structural or functional parts in different engineering fields. However, due to the presence of pores and weak interface interactions, 3D-printed parts have weaker mechanical performance ...
Kui Wang, Ruijun Cai, Zejun Zhang, Jinlong Liu, Said Ahzi, Yong Peng, Yanni Rao   +6 more
doaj   +1 more source

Thermal strength of ethylene–propylene rubbers

Polymer Testing, 1998
Abstract Thermal stability of ethylene–propylene copolymers (EPDM and EPR) is evaluated by isothermal and isobaric determinations of oxygen uptake. Three temperatures (170°C, 185°C and 195°C) were used for all sets of experiments. Two grades of material state: (a) purified by precipitation; and (b) as they were delivered by the manufacturer, were ...
T Zaharescu, C Wurm, C Podina
openaire   +1 more source

Liquid ethylene-propylene copolymers [PDF]

, 1975
Oligomers are prepared by heating solid ethylene-propylene rubber in container that retains solid and permits liquid product to flow out as it is formed. Molecular weight and viscosity of liquids can be predetermined by process temperature.
Humphrey, M. F., Ingham, J. D., Rhein, R. A.   +2 more
core   +1 more source

Melt Grafting of Geometry‐Tailored Voltage Stabilizers for High‐Performance Polypropylene Insulation

Advanced Functional Materials, EarlyView.
A scalable one‐step melt grafting strategy is developed to enhance the dielectric properties of isotactic polypropylene by covalently incorporating thermally stable aromatic voltage stabilizers. This solvent‐free approach improves volume resistivity and DC breakdown strength through deep trap formation and charge localization, offering a sustainable ...
Nazirul Mubin bin Normansah, Taehoon Kwon, Hana Kim, Shin‐Ki Hong, Seung Won Lee, Se Hee Lee, Ik‐Su Kwon, Masahiro Kozako, Minhee Kim, Seunggun Yu   +9 more
wiley   +1 more source