Results 41 to 50 of about 1,876 (297)

Tensile and flexural properties of beta-nucleated polypropylenes

, 2004
Na základě výsledků našich předchozích studií věnovaných beta-nukleovaným polypropylénům a to zejména jejich rázové houževnatosti, se tato práce zaměřuje na studium ohybových a tahových vlastnosti beta-nukleovaného polypropylénu. Pro účely této práce byl
Šimoník, Josef, Stoklasa, Karel, Habrová, Veronika, Čermák, Roman, Obadal, Martin   +4 more
core   +1 more source

Improving Rheological and Mechanical Properties of Various Virgin and Recycled Polypropylenes by Blending with Long-Chain Branched Polypropylene

, 2021
Blends of two long-chain branched polypropylenes (LCB-PP) and five linear polypropylenes (L-PP) were prepared in a single screw extruder at 240 °C. The two LCB-PPs were self-created via reactive extrusion at 180 °C by using dimyristyl peroxydicarbonate ...
Klaus Schmid, Simone Knaus, Sascha Stanic, Thomas Koch, Vasiliki-Maria Archodoulaki   +4 more
core   +1 more source

3D Printing Innovations in Polymeric Porous and Patterned Architecture

Advanced Functional Materials, EarlyView.
Polymeric foams occupy a unique structural space between dense solids and open networks, where engineered void fraction governs mechanical compliance, thermal resistance, and mass transport. Additive manufacturing now enables precise spatial control over cellular architecture, unlocking designer foam structures across applications spanning crash ...
Dhanush Patil, Sri Vaishnavi Thummalapalli, Clarissa Westover, Arunachalam Ramanathan, M. Taylor Sobzcak, Roumika Patil, Qixuan Xiang, Tiantian Li, Sui Yang, Timothy E. Long, Hongyue Sun, Xianqiao Wang, Yang Liu, Kenan Song   +13 more
wiley   +1 more source

Comparison of Properties with Relevance for the Automotive Sector in Mechanically Recycled and Virgin Polypropylene

Recycling, 2021
Polypropylene (PP) has a high recycling potential. However, the properties of mechanically recycled PP (R-PP) have not been fully compared to those of virgin PP (V-PP).
Abdelhak Ladhari, Esra Kucukpinar, Henning Stoll, Sven Sängerlaub   +3 more
doaj   +1 more source

Template‐Confined Synthesis of Shape‐Engineered Single‐Crystal Gold Microplates in Lithographically‐Defined Polymeric Patterns

Advanced Functional Materials, EarlyView.
Single‐crystal gold microplates are high‐performance nanomaterials with an impressive wafer‐based application space. Progress has, however, been tempered by an inability to exert synthetic control over microplate size, shape, and positioning. In this work, control over these parameters is demonstrated using a seed‐mediated synthesis that both confines ...
Debasish Panda, Md Rashed Nizam, Walker J. Tuff, Collin C. Wyant, Maksym Zhukovskyi, Matthew R. Rosenberger, Botond Sánta, Edward C. Kinzel, Robert A. Hughes, Svetlana Neretina   +9 more
wiley   +1 more source

Adhesion prevention in reabsorbable polyethylene glycol hydrogel (Coseal®) coated polypropylene mesh in rabbits [PDF]

Acta Cirúrgica Brasileira, 2013
PURPOSE: To evaluate of postoperative adhesion prevention and inflammatory response to polypropylene mesh, coated with reabsorbable hydrogel of polyethylene glycol (Coseal®) in contact with small bowel in an experimental model in rabbits. METHODS: Twenty
Reynaldo Martins e Quinino, Irami Araújo-Filho, Francisco Piganataro Lima, André Luís Costa Barbosa, Tatiana de Carvalho Maia, Alberto Goldenberg   +5 more
doaj   +2 more sources

Macromolecular non-releasing additives for safer food packaging: application to ethylene/α-olefins and propylene based polymers [PDF]

Polyolefins Journal, 2014
Some innovative solutions are proposed to the problem of the unavoidable physical migration of antioxidants from plastic films for packaging, in order to minimize the consequent undesirable effect of food contamination.
Maria Carmela Sacchi, Simona Losio, Paola Stagnaro, Giorgio Mancini, Luca Boragno, Stefano Menichetti, Caterina Viglianisi, Sara Limbo   +7 more
doaj   +1 more source

Spatially Decoupling Heating and Evaporation for Convection‐Enhanced 3D Solar Evaporation With Continuous Salt Harvesting

Advanced Functional Materials, EarlyView.
An architecture‐enabled bottom‐heated 3D solar convective evaporator spatially decouples photothermal heating from evaporation, triggering natural convection that intensifies sidewall vapour removal and heat transfer. The system achieves significantly enhanced evaporation rates over 2D and conventional 3D designs while confining salt precipitation to ...
Xiaolong Ma, Yan Zhao, Yan Yan, Muhammad Amjad, Guice Yao, Hui Gao, Shudan Wei, Dongsheng Wen   +7 more
wiley   +1 more source

Time/Molecular Weight Superposition to Describe the Behavior of Controlled-Rheology Polypropylenes

, 2022
Polypropylene resins issuing from polymerization reactors are degraded by peroxides in subsequent reactive extrusion processes to improve their processability. This operation reduces their molecular weight and, thus, their viscosity and elasticity.
Berzin, Françoise, Françoise Berzin, Vergnes, Bruno, Bruno Vergnes   +3 more
core   +1 more source

One‐Step Microfluidic Manufactured Fucose‐Decorated Sweetosomes Choose the Time and the Road for Their Intracellular Journey to Cancer Treatment

Advanced Healthcare Materials, EarlyView.
Sweetosomes, a new class of fucose‐decorated liposomes, are developed via a one‐step microfluidic process without surface chemistry. This study elucidates their main caveolae‐mediated entry and distinct endosomal trafficking. These nanostructures demonstrate superior endosomal escape, organelle acidity modulation, and prolonged plasma persistence ...
Mattia Tiboni, Mariele Montanari, Shiva Khorshid, Michele Verboni, Andrea Duranti, Simone Lucarini, Daniele Lopez, Annalisa Aluigi, Gianluca Morganti, Michele Menotta, Giovanna Panza, Daniel J. Klionsky, Barbara Canonico, Luca Casettari   +13 more
wiley   +1 more source