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High-Performance Flexible Strain Sensors: The Role of In-Situ Cross-Linking and Interface Engineering in Liquid Metal-Carbon Nanotube-PDMS Composites.
ACS Appl Mater Interfaces
January 2025
Institute of Polymer Materials, School of Materials Science & Engineering, Jiangsu University, Zhenjiang 212000, PR China.
The increasing demand for high-performance strain sensors has driven the development of innovative composite systems. This study focused on enhancing the performance of composites by integrating liquid metal, carbon nanotubes, and polydimethylsiloxane (PDMS) in an innovative approach that involved advanced interface engineering, filler synergy, and in situ cross-linking of PDMS in solution. Surface modification of liquid metal with allyl disulfide and hydrogen-containing polydimethylsiloxane significantly improved its stability and dispersion within the polymer matrix.
View Article and Find Full Text PDFHigh-filler content electrospun fibers from biodegradable polymers and hydroxyapatite: Toward improved scaffolds for tissue engineering.
Polim Med
December 2024
Department of Polymer Engineering and Technology, Faculty of Chemistry, Wroclaw University of Science and Technology, Poland.
Background: One of the key challenges in tissue engineering area is the creation of biocompatible scaffolds that support cell growth and mimic the structural and mechanical properties of native tissues. Among various materials used for scaffold fabrication, composite materials based on biodegradable polymers reinforced with bioactive inorganic fillers have attracted significant attention due to their properties. One of the important problems with the preparation of composite electrospun fibers is the low filler content in the fiber.
View Article and Find Full Text PDFInvestigation of Rheological, Mechanical, and Viscoelastic Properties of Silica-Filled SSBR and BR Model Compounds.
Polymers (Basel)
November 2024
Department of Elastomer Technology and Engineering, University of Twente, Drienerlolaan 5, 7522 NB Enschede, The Netherlands.
Article Synopsis
- Active fillers like carbon black and silica enhance the mechanical and viscoelastic properties of rubber through various interactions, affecting the compound's behavior.
- The study examines the effects of different silica loadings on three types of solution styrene-butadiene rubbers (SSBR) and one butadiene rubber (BR), finding that higher filler loading increases viscosity and hardness but can also worsen properties in BR due to weak polymer-filler interactions.
- An optimum filler loading was identified, where mechanical properties improved up to a point before declining, influenced by the type of rubber, amount of filler, and temperature.
Highly Filled Waste Polyester Fiber/Low-Density Polyethylene Composites with a Better Fiber Length Retention Fabricated by a Two-Rotor Continuous Mixer.
Polymers (Basel)
October 2024
Engineering Research Center of Polymer Green Recycling of Ministry of Education, Key Laboratory of Pollution Control & Resource Reuse, College of Environmental and Resource, College of Carbon Neutral Modern Industry, Fujian Normal University, Fuzhou 350007, China.
Article Synopsis
- - The study examines the challenges of using waste polyester fibers (PET fibers) to create strong fiber-reinforced composites with high fiber content and better fiber length retention.
- - Using a twin-rotor continuous mixer significantly improved the mechanical properties of the composites, resulting in increases of 21% in tensile strength and 13% in flexural strength at 60 wt% fiber content compared to a twin-screw extruder.
- - The twin-rotor continuous mixer also produced longer fibers, with an average increase of 32% in fiber length, due to its lower shear frequency and higher tensile ratio, highlighting its effectiveness for these composites.
Enhancing the Filler Utilization of Composite Gel Electrolytes via In Situ Solution-Processable Method for Sustainable Sodium-Ion Batteries.
Adv Mater
December 2024
Frontiers Science Center for New Organic Matter, State Key Laboratory of Advanced Chemical Power Sources, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin, 300071, P. R. China.
The composite gel electrolyte (CGE), which combines the advantages of inorganic solid-state electrolytes and solid polymer electrolytes, is regarded as the ultimate candidate for constructing batteries with high safety and superior electrode-electrolyte interface contact. However, the ubiquitous agglomeration of nanofillers results in low filler utilization, which seriously reduces structural uniformity and ion transport efficiency, thus restricting the development of consistent and durable batteries. Herein, a solution-processable method to in situ construct CGE with high filler utilization is introduced.
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