Materiales

Materiales

A New Harziane Diterpene, Harziaketal A, and a New Sterol, Trichosterol A, from the Marine?Alga?Epiphytic Trichoderma sp. Z43
20/09/2023 - One new diterpene, harziaketal A (1), and one new highly degraded sterol, trichosterol A (2), along with three known compounds, including one diterpene, harzianone (3), and two steroids,...
Investigation of Dynamic-Mechanical-Thermal Analysis of Innovative Hybrid Carbon/Glass Fibers Reinforced by GNPs and Al2O3 for Marine Structures
19/09/2023 - Marine structural applications face numerous challenges related to environmental load, corrosion, and fatigue under varying time and temperature conditions. One of the major challenges faced by...
Interplay of curing and thermal degradation in epoxy resins cured with amino acids: Influence of the maximum curing temperature on the network structure, crystal morphology and mechanical properties
19/09/2023 - Improvement of the hydrophilicity and wear resistance for PEEK by surface?grafted PSBMA polyelectrolyte brushes.AbstractPEEK has been widely used in orthopedic implants for three decades. However,...
Mechanically robust room-temperature self-healing waterborne polyurethane with antimicrobial properties constructed through multiple dynamic bonds
20/09/2023 - Abstract In this study, 2,6-diacetylpyridine dioxime was synthesized from 2,6-diacetylpyridine and hydroxylamine hydrochloride as raw materials and bonded into the molecular...
Thermal Conductivity and Microstructure of Novel Flaxseed-Gum-Filled Epoxy Resin Biocomposite: Analytical Models and X-ray Computed Tomography
20/09/2023 - The growing awareness of the environment and sustainable development has prompted the search for solutions involving the development of bio-based composite materials for insulating applications,...
Reusable, Stable, Efficient and Multifunctional Superhydrophobic and Oleophilic Polyurethane Sponge for Oil–Water Separation Prepared Using Discarded Composite Insulator
21/09/2023 - Oil spills and chemical leakages are a serious source of pollution in oceans and rivers, and have attracted worldwide attention. Many scientists are currently engaged in the development of...
Wearable Capacitive Tactile Sensor Based on Porous Dielectric Composite of Polyurethane and Silver Nanowire
19/09/2023 - In recent years, the implementation of wearable and biocompatible tactile sensing elements with sufficient response into healthcare, medical detection, and electronic skin/amputee prosthetics has...
Porous Thermal Insulation Polyurethane Foam Materials
19/09/2023 - Porous thermal insulation materials (PTIMs) are a class of materials characterized by low thermal conductivity, low bulk density and high porosity. The low thermal conductivity of the gas enclosed in...
Development of Biodegradable Thermosetting Plastic Using Dialdehyde Pineapple Stem Starch
20/09/2023 - Starch extracted from pineapple stem waste underwent an environmentally friendly modification process characterized by low-energy consumption. This process resulted in the creation of dialdehyde...
Joining of Aluminum and CFRP via Laser Powder Bed Fusion: Influence of Experimental Set-Up and Laser Processing on Microstructure and Mechanical Properties
21/09/2023 - Additive-manufacturing-based joining methods enable tailored or even functionalized joints and allow for hybridization at small scales. The current study explored an innovative joining method for...
Influence of Catalyst Content and Epoxy/Carboxylate Ratio on Isothermal Creep of Epoxy Vitrimers
21/09/2023 - In the present work, a commercial epoxy based on epoxy anhydride and tertiary amine was modified by a metallic catalyst (Zn2+) to induce vitrimeric behavior by promoting the transesterification...
Finite Element Simulation and Experimental Assessment of Laser Cutting Unidirectional CFRP at Cutting Angles of 45° and 90°
21/09/2023 - Laser cutting of carbon fibre-reinforced plastics (CFRP) is a promising alternative to traditional manufacturing methods due to its non-contact nature and high automation potential. To establish the...
The synergistic impacts of hybrid nanofillers of graphene nanoplatelets/carbon nanotubes on curing behavior of an epoxy?vinyl ester interpenetrating polymer network nanocomposite coating
20/09/2023 - Herein, we wish to report the influence of hybrid GnP/MWCNT nanofillers at different loadings on the curing kinetics of the EP/VE IPN system.This study investigated the synergistic effects of hybrid...
Failure Prediction of Laminated Composites: Simulation of the Nonlinear Behavior and Progressive Damage
15/09/2023 - The Hashin’s criteria are useful in composite structural applications because of their simple concept and their theoretical results are relatively close to that got in the experimental parts. In...
Preparation of nano SiC by carbothermic reduction of silicon cutting waste with phenolic resin
16/09/2023 - With the vigorous development of photovoltaic industry, considerable amount of silicon cutting waste (SCW) has been generated and aroused a series of environmental problems. Current recycling methods...
Carbon nanotube-reinforced epoxy composites in seawater: effect of amino-functionalization and post-curing process?
16/09/2023 - Abstract Due to their extraordinary properties, functionalized carbon nanotubes (CNTs) have been added to epoxy matrices. In the marine industry, CNT/epoxy composite is applied...
Design and Experimental Analysis of Seismic Isolation Bearings for Nuclear Power Plant Containment Structures
17/09/2023 - The aim of this study was to further research the mechanical properties of epoxy thick-layer rubber isolation bearings, adopting orthogonal design and efficacy coefficient methods in order to...
Structure–Property Relationship and Multiple Processing Studies of Novel Bio-Based Thermoplastic Polyurethane Elastomers
17/09/2023 - Currently, the growing demand for polymeric materials has led to an increased need to develop effective recycling methods. This study focuses on the multiple processing of bio-based thermoplastic...
Toughening Enhancement Mechanism and Performance Optimization of Castor-Oil-Based Polyurethane Cross-Linked Modified Polybutylene Adipate/Terephthalate Composites
18/09/2023 - In this study, polyol castor oil (CO) and toluene-2,4-diisocyanate (TDI) were selected to modify PBAT, and castor-oil-based polyurethane (COP) was produced in a PBAT matrix using melt-blending and...
Repair Strategy for Epoxy Anticorrosive Coatings on Steel Structures
18/09/2023 - This paper presents the results of a test of epoxy anticorrosion coating repair. Two strategies of coating repair were studied, respectively: partial repair and integral repair. The gloss loss rate,...
Study of Aerogel-Modified Recycled Polyurethane Nanocomposites
18/09/2023 - In this study, a liquid regenerated polyether polyol was obtained after the degradation of waste PU foam by the two-component decrosslinker agents ethylene glycol and ethanolamine. The regenerated...