Materiales

Materiales

Flame-Retardant Foamed Material Based on Modified Corn Straw Using Two Nitrogenous Layers
19/01/2023 - Foamed materials based on a biopolymer of crop straws are environmentally friendly, but ignitability limits their application. In this study, two nitrogenous layers were introduced onto corn straw by...
Foam-gelcasting preparation and properties of high-strength mullite porous ceramics
- The unique structure and excellent properties of porous materials enhance their prospects for application as catalyst supports, thermal insulation, and liquid filtration, and within biomedicine....
Preparation of nano AlN powder by sol gel foaming and its sintering properties
13/01/2023 - Uniformly dispersed nano?sized aluminum nitride powders were prepared by sol?gel foaming method, using aluminum nitrate as the aluminum source, sucrose as the carbon source, and ammonium chloride as...
A Validation Study on Mechanical Properties of Foam Concrete with Coarse Aggregate Using ANN Model
12/01/2023 - The usage of foam concrete (FC) was extended from being used as a filler material to an alternative concrete due to the effect of conventional concrete on global warming. The diversified perspective...
One More Step Towards a Circular Economy for Thermal Insulation Materials—Development of Composites Highly Filled with Waste Polyurethane (PU) Foam for Potential Use in the Building Industry
12/01/2023 - The rapid development of the building sector has created increased demand for novel materials and technologies, while on the other hand resulting in the generation of a severe amount of waste...
Applications and Challenges of Supercritical Foaming Technology
12/01/2023 - With economic development, environmental problems are becoming more and more prominent, and achieving green chemistry is an urgent task nowadays, which creates an opportunity for the development of...
Recent Progress of Non-Isocyanate Polyurethane Foam and Their Challenges
04/01/2023 - Polyurethane foams (PUFs) are a significant group of polymeric foam materials. Thanks to their outstanding mechanical, chemical, and physical properties, they are implemented successfully in a wide...
Efficient preparation of hydrogen barrier films by ultrasonic?assisted layer?by?layer assembly
02/01/2023 - AbstractPoly(lactic acid) (PLA) foams containing various amounts of an epoxy as a chain extender (CE) and nano?sized zinc citrate as a nucleating agent are prepared by continuous extrusion using...
Experimental study on mix proportions of similar materials to reef limestone
15/02/2023 - Reef limestone is different from conventional terrestrial rocks and is characterized by high porosity, low density, and low strength. To study similar materials applicable to model tests of reef...
Soft Pneumatic Actuators with Controllable Stiffness by Bio?inspired Lattice Chambers and FDM 3D Printing
20/12/2022 - This paper shows how changing 3D printing parameters and using bio?inspired lattice chambers can engineer soft pneumatic actuators with different behaviours in terms of controlling tip deflection and...
Designing a superhydrophobic quality and strengthening mechanism for foam concrete
15/02/2023 - In this study, a superhydrophobic concrete system was created by modifying the concrete by adding calcium stearate (CS), polydimethylsiloxane (PDMS), and hydroxypropyl methylcellulose (HPMC) and...
Application of Nanotechnology in Extinguishing Agents
12/12/2022 - Extinguishing agents are a very important tool in the field of security, both in terms of private and social aspects. Depending on the type of burning substance and place of fire, appropriately...
Improved thermal insulation and compressive property of bimodal poly (lactic acid)/cellulose nanocomposite foams
- In this work, an innovative PLA/CNF nanocomposite foam with a bimodal cell structure is prepared by a simple one-step depressurization foaming process using only supercritical carbon dioxide...
Effects of blend phase ratio upon thermomechanical, viscoelastic relaxation and strain recovery behavior of crosslinked LDPE/EVA foams
09/12/2022 - Abstract Crosslinked foams based on blends of low-density polyethylene (LDPE) and copolymer of ethylene–vinyl acetate (EVA) with various blend phase ratios, namely LDPE-rich...
Opposite Roles of Bacterial Cellulose Nanofibers and Foaming Agent in Polyhydroxyalkanoate-Based Materials
07/12/2022 - In this work, an economically feasible procedure was employed to produce poly (3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV)-based foams. Thermally expandable microspheres (TESs) were used as a...
Optimized Preparation of Porous Coal Gangue-Based Geopolymer and Quantitative Analysis of Pore Structure
28/11/2022 - The purpose of study is to optimize the preparation of porous coal gangue-based geopolymer and quantitatively analyze its pore structure to establish the relationship between pore structure and...
Research and Development of Red Mud and Slag Alkali Activation Light Filling Materials Preparation by Ultra-High Water Content and Analysis of Microstructure Formation Mechanism
28/11/2022 - This paper presents the preparation of alkali-activated red mud (RM) light material by an ultra-high liquid–solid ratio (1.98) based on the super water absorption characteristic of RM...
Potentiality of the porous geopolymer sphere in adsorption of Pb (II) from aqueous solutions: Behaviors and mechanisms
- In this study, a porous geopolymer sphere (PGS) was developed that comprised a mixture of coal gasification fly ash, steel slag, metakaolin and an alkaline activator (SiO2/Na2O molar...
Facile Synthesis of Formaldehyde-Free Bio-Based Thermoset Resins for Fabrication of Highly Efficient Foams
25/11/2022 - Bio-based biodegradable foams were formulated from a crosslinkable network structure combining starch, furfuryl alcohol, glyoxal, and condensed tannin in the presence of p-toluenesulfonic acid (pTSA)...
Enhanced Separation Performance of Hierarchically Porous Membranes Fabricated via the Combination of Crystallization Template and Foaming
27/11/2022 - In this work, poly (vinylidene fluoride) (PVDF) hierarchically porous membranes (HPMs) with isolated large pores and continuous narrow nano-pores have been fabricated from its blend with poly (methyl...
Study of foam drainage agent based on g-C3N4 nanosheets reinforced stabilization
- In order to solve the problem of foam instability in foam drainage gas recovery technology, a nanosheets-stabilized foam drainage agent was constructed. The synergistic effect of anionic foaming...