Voici notre dernière sélection de publications et de brevets mondiaux en anglais portant sur ThermoplastiquesLe site Web de la Commission européenne, qui regroupe de nombreuses revues scientifiques en ligne, classées et axées sur les thermoplastiques, le polyéthylène, le polypropylène, le chlorure de polyvinyle, l'acrylonitrile butadiène styrène, le moulage par injection et le moulage par soufflage.
Enhanced Efficiency and Mechanical Stability in Flexible Perovskite Solar Cells via Phenethylammonium Iodide Surface Passivation
Published on 2025-07-11 by Ibtisam S. Almalki, Tamader H. Alenazi, Lina A. Mansouri, Zainab H. Al Mubarak, Zainab T. Al Nahab, Sultan M. Alenzi, Yahya A. Alzahrani, Ghazal S. Yafi, Abdulmajeed Almutairi, Abdurhman Aldukhail, Bader Alharthi, Abdulaziz Aljuwayr, Faisal S. Alghannam, Anas A. Almuqhim, Huda Alkhaldi, Fawziah Alhajri, Nouf K. AL-Saleem, Masfer Alkahtani, Anwar Q. Alanazi, Masaud Almalki @MDPI
Abstract: Flexible perovskite solar cells (FPSCs) hold great promise for lightweight and wearable photovoltaics, but improving their efficiency and durability under mechanical stress remains a key challenge. In this work, we fabricate and characterize flexible planar FPSCs on a polyethylene terephthalate (PET). A phenethylammonium iodide (PEAI) surface passivation layer is introduced on the perovskite to form a two-dimensional capping layer, and its impact on device performance and stability is systematic[...]
Our summary: Enhanced efficiency and mechanical stability achieved in flexible perovskite solar cells through PEAI surface passivation, leading to improved device performance and durability under mechanical stress. Integration of PEAI treatment with optimized ETL and HTL layers enhances efficiency and flexibility, paving the way for reliable and high-performance wearable solar cells.
Efficiency, Mechanical Stability, Perovskite Solar Cells, Phenethylammonium Iodide
Publication
Polypropylene resin composition and article produced therefrom
Patent published on the 2025-03-06 in WO under Ref WO2025048329 by LOTTE CHEMICAL CORP [KR] (Kim Yoen Kyoung [kr], Lee Jin Seong [kr], Kang Jae Ryeon [kr], Kwon Young Chul [kr], Jeong Hyun Taek [kr])
Abstract: A polypropylene resin composition of the present invention comprises: about 100 parts by weight of a base material containing about 40 wt% to about 70 wt% of a polypropylene resin and about 30 wt% to about 60 wt% of a recycled polypropylene resin having a calcium (Ca) content of about 0.1 wt% to about 1 wt%; about 25 parts by weight to about 55 parts by weight of a phosphorus nitrogen-based flame retardant; about 5 parts by weight to about 35 parts by weight of talc; and about 0.5 parts by weigh[...]
Our summary: Environmentally friendly polypropylene resin composition using recycled materials, excellent flame retardancy, impact resistance, and moldability.
polypropylene resin, composition, recycled polypropylene, flame retardant
Patent
Polypropylene resin composition and article produced therefrom
Patent published on the 2025-03-06 in WO under Ref WO2025048270 by LOTTE CHEMICAL CORP [KR] (Choi Ji Ho [kr], Lee Hyeong Shin [kr])
Abstract: A polypropylene resin composition of the present invention comprises: about 100 parts by weight of a polypropylene resin; about 5-15 parts by weight of a styrene-based thermoplastic elastomer; about 2-5 parts by weight of zinc oxide; about 0.1-0.7 parts by weight of a silver-based compound; about 15-35 parts by weight of talc; and about 1-5 parts by weight of a carbon fiber. The polypropylene resin composition is excellent in terms of antibacterial properties, antifungal properties, antiviral pr[...]
Our summary: A polypropylene resin composition with thermoplastic elastomer and zinc oxide, providing antibacterial, antifungal, and antiviral properties, as well as impact resistance and thermal stability, with melange and fabric textures.
polypropylene resin, thermoplastic elastomer, zinc oxide, antibacterial properties
Patent
Negative electrodes comprising polymer base layers for lithium-metal and lithium-ion electrochemical cells
Patent published on the 2025-03-06 in WO under Ref WO2025049785 by CUBERG INC [US] (Jorgensen David [us], Adigun Oluwamayowa [us], Skaggs Justin [us], Barim GÖzde [us], Chen Michelle [us], Nanda Sanjay [us])
Abstract: Described herein are lithium-metal negative electrodes, lithium-metal liquid-electrolyte electrochemical cells comprising such electrodes, and methods of fabricating such electrodes. In some examples, a lithium-metal negative electrode comprises a polymer base layer, a current collector layer, and a lithium-metal negative active material layer. The polymer base layer can comprise a high-crystallinity polypropylene homopolymer that may have a melting point of 164-170°C and/or a Viscat softening [...]
Our summary: Negative electrodes with polymer base layers for lithium-metal and lithium-ion cells, including lithium-metal negative electrodes and methods of fabrication.
polymer base layers, lithium-metal, electrochemical cells, fabrication
Patent
Bio-based fast reheat additive for polymers
Patent published on the 2025-03-06 in WO under Ref WO2025049809 by ORIGIN MAT OPERATING INC [US] (Hanan Jay Clarke [us])
Abstract: Disclosed herein are polymer composites may include one or more hydrothermal carbon (HTC) materials as a fast reheat (FRH) additive for various polymer materials. In demonstrative examples, polypropylene-HTC composites exposed to infra-red radiation showed an increase in heat reabsorption on their surfaces due to the presence of HTC, providing for faster reheating capability when processing polymers or materials that include HTC.[...]
Our summary: Polymer composites with bio-based fast reheat additive HTC show increased heat reabsorption, enabling faster reheating during processing.
bio-based, fast reheat additive, polymer composites, hydrothermal carbon (HTC)
Patent
Thermoplastic polymer-coal char composites
Patent published on the 2025-03-06 in WO under Ref WO2025049320 by UNIV OF WYOMING [US] (Zanjanijam Ali Reza [us], Johnson Patrick [us])
Abstract: Embodiments described herein generally relate to a new class of high density polyethylene (HDPE)-coal char composites. In an embodiment is provided a composite that includes HDPE and coal char. Articles of manufacture comprising such composites are also described. The coal char may be used in polymer composites as, for example, a functional filler. The coal char may significantly increase the flexural and tensile properties as well as the thermal stability of the HDPE matrix.[...]
Our summary: New class of high density polyethylene-coal char composites, including HDPE and coal char, functional filler for polymer composites, increase flexural and tensile properties and thermal stability.
Thermoplastic, polymer, coal char, composites
Patent
Method for manufacturing a reinforced load-carrying logging cable with a hydraulic conduit
Patent published on the 2025-03-06 in WO under Ref WO2025048684 by TETRUASHWILI SERGEI SOLOMONOVICH [RU] (Davydov Oleg Mikhailovich [ru], Gerasin Artyom Sergeevich [ru])
Abstract: The invention relates to the manufacture of a reinforced load-carrying logging cable with a hydraulic conduit for use in the oil and gas industry. The present method includes forming, in a multilayer extruder, a hydraulic conduit-liner having an additional layer made of polybutylene terephthalate. The hydraulic conduit-liner is passed through three cooling baths, the first having a maximum temperature of 25°С, the second having a maximum temperature of 40°С and the third having a maximum tem[...]
Our summary: Method for manufacturing a reinforced load-carrying logging cable with a hydraulic conduit, including forming a hydraulic conduit-liner with additional layers, cooling baths, applying reinforcing plies, and bonding layers for increased mechanical properties and length for downhole operations.
manufacturing, reinforced, logging cable, hydraulic conduit
Patent
