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The Importance of Fiber/Matrix Adhesion and Annealing Process in Water Uptake of PLA/PMMA Matrix Composites Reinforced with Sisal Fibers: The Effect of Coupling Agent Addition
(Taylor & Francis, 2022-01-22)
With the aim to open new applications possibilities to novel biocomposites based on PLA/PMMA matrix and reinforced with sisal fibers, it was studied the effect of water immersion aging on biocomposite tensile properties. ...
Shape-memory properties of crosslinked biobased polyurethanes
(2016-03-25)
Biobased crosslinked polyurethanes were synthesized and characterized as shape-memory polymers. Both the macrodiol and the diisocyanate were derived from renewable sources; the first one from castor oil, and the second one ...
Preparation and characterization of composites based on poly(lactic acid)/poly(methyl methacrylate) matrix and sisal fiber bundles: The effect of annealing process
(Sage, 2020-06-12)
The interest on poly(lactic acid) (PLA)/poly(methyl methacrylate) (PMMA) blends has increased during the last years due to their promising properties. The novelty of the current work focuses on the preparation and ...
The Importance of Coupling Agent on Tensile and Thermomechanical Performance of Annealed Composites Based on Poly(Lactic Acid)/Poly(Methyl Methacrylate) Matrix and Sisal Fiber Bundles
(Taylor & Francis, 2021-04-22)
The main aim of this work is to study the importance of the coupling agent
on tensile and thermomechanical performance of annealed composites
based on poly (lactic acid)/poly (methyl methacrylate) matrix and sisal ...
Properties of flexible polyurethane foams containing isocyanate functionalized kraft lignin
(Elsevier, 2017-02-20)
A commercial kraft lignin (k-lignin) was successfully functionalized by means of the reaction of an isocyanate group from isophorone diisocyanate (IPDI) with hydroxyl groups present in lignin (k-IPDI), for their further ...
3D printed alginate-cellulose nanofibers based patches for local curcumin administration
(Elsevier, 2021-07)
Alginate and nanocellulose are potential biomaterials to be employed as bioinks for three-dimensional (3D) printing. Alginate-cellulose nanofibers (A-CNF) formulations with CNF amounts up to 5 wt% were developed and ...
Emerging Reprocessable and Recyclable Biobased Cross-Linked Polyurethanes Through Diels–Alder Chemistry
(ACS, 2024)
[EN] Cross-linked polyurethanes (PUs) present outstanding properties and high versatility, making them ideal to use in many different applications. Nevertheless, the intersection of environmental and socioeconomic concerns ...
Advanced and traditional processing of thermoplastic polyurethane waste
(Elsevier, 2022-04)
In this work different ways to valorise discarded ear tags made of TPU from livestock sector were studied. This singular residue does not require separation from other plastics like other industrial and urbane wastes, which ...
Furan-containing biobased polyurethane nanofibers: A new versatile and green support clickable via Diels-Alder reaction
(Elsevier, 2022-09)
A new biobased polyurethane formulation containing furan was synthesized and subsequently functionalized and de-functionalized via Diels-Alder and retro Diels-Alder reactions. Furan was inserted in the backbone polymer ...
Effect of the biobased polyols chemical structure on high performance thermoset polyurethane properties
(Elsevier, 2022-12)
The sustainability of the polymeric materials has become a fundamental challenge; therefore, the development of new biobased formulations has gained increasing interest. Thermoset polyurethanes (PURs) present high performance ...