Results 121 to 130 of about 10,556 (300)

Phenolic resins (III) - Solid state structures and thermal properties of cross-linked phenolic resins

open access: yes, 2003
International audienceNon-destructive, solid state physicochemical techniques were used to analyze the structure of phenolic resins prepared with precise syntheses and thermal parameters.
Bouajila, Jaloul   +5 more
core  

Synthesis of Hindered Phenolic Esters over Ion-Exchange Resins

open access: yes, 2014
The esterification of 3,5-di-tert-butyl-4-hydroxybenzoic acid with 1-hexadecanol over a series of ion-exchange resins was investigated, in which resin D072 exhibited excellent catalytic performance.
Ligong Chen (259976)   +4 more
core   +1 more source

Experimental Characterization of Thermal, Acoustic, Magnetic, and Electrical Properties of Additive Manufactured Composites Reinforced With Ceramic Powders for Robotic Arms

open access: yesJournal of Applied Polymer Science, Volume 142, Issue 16, April 20, 2025.
ABSTRACT An extensive experimental analysis was conducted to assess the thermal, acoustic, magnetic, and electrical properties of composite materials reinforced with varying ratios of silicon carbide (SiC) and alumina (Al₂O₃) powders, with a focus on enhancing the functionality of robotic arms.
Merdan Özkahraman   +2 more
wiley   +1 more source

Biobased Polyurethane Films Based on Andiroba (Carapa guianensis) and Buriti (Mauritia flexuosa) Oil Polyols

open access: yesJournal of Applied Polymer Science, EarlyView.
Polyurethane films were prepared from andiroba (Carapa guianensis) and buriti (Mauritia flexuosa) oil‐derived polyols, emphasizing their potential as bio‐based materials. UV–Vis analysis indicates the retention of carotenoid‐related chromophoric features within the polymer matrix.
João A. P. da Silva   +5 more
wiley   +1 more source

Refratários contendo carbono: propriedades, características e variáveis em sua composição Carbon containing refractories: properties, characteristics and variables in their composition

open access: yesCerâmica, 2013
Por seu singular conjunto de propriedades e características, os refratários contendo carbono têm sido fundamentais para que a indústria siderúrgica alcance seus atuais níveis de produtividade.
C. S. Bitencourt, V. C. Pandolfelli
doaj  

Evaluation of the Efficiency of a Biobased Reactive Plasticizer on the Morphology and Properties of Sustainable Flexible Films Based on Poly(Lactic Acid) (PLA) Produced by Blown Film Extrusion

open access: yesJournal of Applied Polymer Science, EarlyView.
A comparative investigation of two epoxy additives derived from cardanol (NC513 and NC514s) for production of films based on poly (lactic acid) (PLA), acetyl tributyl citrate (ATBC), and poly (butylene adipate‐co‐terephthalate) (PBAT) clarified their distinct roles, with NC513 mainly acting as a plasticizer, reducing viscosity and enhancing ductility ...
Norma Mallegni   +3 more
wiley   +1 more source

Modified PF resins for composite structures with improved mechanical properties

open access: yes, 2010
Novel composites resins for civil engineering structures were synthesised. Resol phenolic resins were modified by the copolymerization of Phenol with Cardanol and Formaldehyde (CPF).
Moscou, C., Aravinthan, T., Cardona, F.
core  

Potassium hydroxide activation of microalgal biochar for improved adsorption efficiency

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract Activated carbon was prepared from Chlorella by carbonization and potassium hydroxide activation, and its structural properties and methylene blue (MB) adsorption performance were evaluated. Raw Chlorella exhibited an adsorption capacity of 287.2 mg g−1, which decreased to 214.8 mg g−1 after carbonization.
Keito Kubota   +3 more
wiley   +1 more source

Exploring the potential of ucuúba (Virola surinamensis) seed fat

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract Ucuúba (Virola surinamensis) fat is an important income source for Amazonian communities. Local businesses typically process whole seeds for fat extraction; however, seed structural integrity may influence extraction efficiency and fat quality.
Juan David Marmolejo Tascón   +4 more
wiley   +1 more source

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