Materiales avanzados
Materiales avanzados
Shungite/poly(vinyl alcohol) hybrid hydrogels: An efficient adsorption material for rare earth metals in aqueous media
12/12/2023 -
Carboxylated acrylonitrile butadiene rubber/cryptocrystalline graphite prepared by latex blending showed a smoother worn surface, less and smaller wear debris, and lower steady state friction...
The Effect of Nanosilica on Mechanical and Swelling Resistance Properties of Ternary Rubber (NR/SBR/NBR) Blends Nanocomposites with and without Bis(Triethoxysilylpropyl)Tetrasulfane
02/12/2023 -
The production of a new class of plastics with improved properties can be achieved through polymer blends rather than using individual components. This study involved the preparation of...
Rhodanine?chitosan hydrogel as a novel antioxidant for acrylonitrile?butadiene rubber composites
22/09/2023 -
Preparation, curing and physico?mechanical properties of rhodanine?chitosan composites.Rhodanine?chitosan (RC) hydrogel is examined as a novel antioxidant for acrylonitrile?butadiene rubber (NBR)...
A Molecular Dynamics Simulation Study on Enhancement of Mechanical and Tribological Properties of Nitrile—Butadiene Rubber with Varied Contents of Acrylonitrile
18/09/2023 -
The molecular models of nitrile–butadiene rubber (NBR) with varied contents of acrylonitrile (ACN) were developed and investigated to provide an understanding of the enhancement...
Ultrasonic-Assisted Surface Finishing of STAVAX Mold Steel Using Lab-Made Polishing Balls on a 5-Axis CNC Machining Center
28/08/2023 -
The inconvenience of conventional wool ball polishing is that the surface finishing process should be equipped with a slurry container. The main objective of this research is to develop an...
Effect of fiber orientation and fiber volume fraction on the mechanical properties of all?polyamide composites
02/08/2023 -
Development of various BIIR based blends for inner liner applications.AbstractOne of the best elastomers for the inner liner of a tire is brominated butyl rubber (BIIR). On the other hand,...
Accelerated aging behavior and degradation mechanism of nitrile rubber in thermal air and hydraulic oil environments
07/06/2023 -
Aging and properties of NBR.The aging behavior and degradation mechanism of nitrile rubber (NBR) under free and compression states were investigated in simulated air and hydraulic oil environments at...
Multilevel structured PA66@BN nanofiber filter prepared via solution blow spinning and spraying for efficient particulate matter removal
25/04/2023 -
G'?strain and stress?strain curves of NBR/clay nanocomposites with various AO?245 contents.AbstractClay modification by organic ammonium salts has been widely introduced in rubber/clay...
Expanded Vermiculite: A Short Review about Its Production, Characteristics, and Effects on the Properties of Lightweight Mortars
21/03/2023 -
Global temperatures have led to an increasing need for air conditioning systems. So, because of this fact, buildings have been improved in terms of their thermal and energy efficiency. Regarding...
Effects of ??dextranase in raw natural rubber on the interface and performance of natural rubber/silica composites via simulation with an outer same protein
09/03/2023 -
AbstractThe unique “sea?island” phase of thermoplastic vulcanizates (TPVs) dictates an inseparable correlation between micro?morphology and properties, the studies on the processing procedures in...
Influence of unipolar electric fields on the behavior of dielectric elastomer actuators based on plasticized acrylonitrile?butadiene rubber (NBR)
09/02/2023 -
AbstractA new method to determine the blockiness and especially the block length distribution (BLD) of copolymers is described. This Systematic Workflow to Analyze Multi?fragmented Polymers with Mass...
Molecular-Level Insight of CP52/NBR Damping Composites through a Combination of Molecular Dynamics Simulation and Experimental Method
24/01/2023 -
To enhance the damping properties of nitrile butadiene rubber (NBR), the elastomer used was blended with chlorinated paraffin 52 (CP52) to prepare NBR/CP52 composites. The results showed that CP52...
Achieving High Thermal Conductivity and Satisfactory Insulating Properties of Elastomer Composites by Self-Assembling BN@GO Hybrids
19/01/2023 -
With increasing heat accumulation in advanced modern electronic devices, dielectric materials with high thermal conductivity (λ) and excellent electrical insulation have attracted...
Load Models Representative of Brazilian Actual Traffic in Girder-Type Short-Span Highway Bridges
12/01/2023 -
The Brazilian code NBR 7188 for highway bridge design prescribes a live load model consisting of a 3-axle vehicle plus a uniform load, which are both affected by an impact factor when considering...
Thermoplastic vulcanizates with an integration of good mechanical performance and excellent resistance to high temperature and oil based on HNBR/TPEE
12/12/2022 -
Thermoplastic vulcanizates (TPVs), with a combination of excellent resilience of conventional elastomer and re?processibility of thermoplastic, have been widely explored both in academia and industry...
Surface modification of zirconia by various modifiers to investigate its reinforcing efficiency toward nitrile rubber
07/12/2022 -
Three different surface modifiers (SDS: a surfactant, MPS: an organosilane and Tris: an amine buffer) are employed to modify the surface of sol–gel derived in?situ generated zirconia. Effect of...
Preparation of nitrile butadiene rubber/fly ash composites by designing a surficial immobile layer
21/07/2022 -
Fly ash (FA), a solid waste product from thermal power stations, can be served as a nonreinforcing filler for polymers. Due to the lack of hydroxyl groups of FA, it is infeasible to prepare polymer...
Alkali-reactivity of Pernambuco east shear zone coarse concrete aggregates: An experimental discussion
15/08/2022 -
Being the fifth largest country globally, Brazil has a wide variety of rocks used in concrete production. Due to their mineralogical characteristics, many Brazilian rocks present reactive alkali...
Research and Development of High-Performance High-Damping Rubber Materials for High-Damping Rubber Isolation Bearings: A Review
15/06/2022 -
At present, high-damping rubber materials, widely used in the field of engineering seismic isolation, generally have the problems such as narrow effective damping temperature range, low damping loss...
Preparation, characterization, and application of hollow nano?TiO2@modified graphene/fluorinated copolymer nanocomposite leather finishing agents
23/05/2022 -
Incorporation of jojoba seed meal powder (JSMP) into silica?filled NBR composites endowed the resulting composites (G1, G2, G3, G4, & G5) with a high resistance to thermal aging compared to that...
Fatigue Analysis and Defect Size Evaluation of Filled NBR including Temperature Influence
24/05/2022 -
The fatigue behavior of a filled non-crystallizing elastomer was investigated on axisymmetric dumbbell specimens. By plotting relevant Wöhler curves, a power law behavior was found. In...
