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From spherical micelles to hexagonally packed cylinders: the cure cycle determines nanostructures generated in block copolymer/ epoxy blends
(American Chemical Society, 2013-06-04)
Block copolymer (BCP)/epoxy blends have been intensively investigated during the past decade. Macrophase separation of the BCP in the cured thermoset is avoided by selecting one block that is initially immiscible or that ...
Nanostructured epoxies based on the self-assembly of block copolymers: A new miscible block that can be tailored to different epoxy formulations
(American Chemical Society, 2007-02)
Nanostructured thermosets may be obtained by the self-assembly of amphiphilic block copolymers (BCP) in a reactive solvent and fixation of the resulting morphologies by the cross-linking reaction. Nanostructuration requires ...
Remote actuation of epoxy nanocomposites with functional properties
(Asociación Química Argentina, 2018-10)
Las redes epoxi son una familia de compuestos con uso extensivo en aplicaciones tales comorecubrimientos, adhesivos y materiales compuestos avanzados. Exhiben diferentes propiedadesfuncionales tales como la capacidad de ...
Thermal degradation of a phenolic resin, vegetable fibers, and derived composites
(John Wiley & Sons Inc, 2008-03)
The thermal degradation behavior of resol, several vegetable fibers (two types of cotton fibers, sisal and sugar cane bagasse) and derived polymer composites have been investigated using thermogravimetric analysis (TGA). ...
Direct relationships between volume variations at macro and nanoscale in epoxy systems. PALS/PVT measurements
(Elsevier, 2004-12)
The free volume in epoxy systems fully cured with aminic hardeners having different chemical structures was studied by means of positron annihilation lifetimes spectroscopy. The results are compared with those obtained ...
Physical and mechanical characterization of jute fabric composites
(John Wiley & Sons Inc, 2005-10-26)
As-received and washed jute fabrics were used as reinforcement for a thermoset resin. The mild treatments performed on the jute fabrics did not significantly affect their physical and thermal behaviors. The washed fibers ...
High Solid Acrylic–Melamine Latexes with Tunable Crosslinking Capability
(Wiley VCH Verlag, 2019-04)
Miniemulsion polymerization is employed to produce high solid content (50%) acrylic/melamine latexes with varied crosslinking capability, for their potential application as waterborne crosslinkable coatings. This synthesis ...
Application of Benzoxazine-Based Dimers, Oligomers, and Polymers as Chelating Agents
(Wiley VCH Verlag, 2019-01)
Polybenzoxazines are a relatively new type of thermoset polymer that has primarily been used for the development of composite materials. However, there is an existing interest in expanding the applications for this family ...
Cure kinetics of epoxy systems modified with block copolymers
(John Wiley & Sons Ltd, 2004-10)
The kinetics pathway of a 4,4′‐diaminodiphenylmethane‐cured diglycidyl ether of bisphenol‐A (DGEBA) epoxy system modified with a PEO–PPO–PEO block copolymer has been investigated by differential scanning calorimetry. The ...
Effect of natural rubber on wood-reinforced tannin composites
(John Wiley & Sons Ltd, 2007-08)
Natural rubber latex was added to composite materials formulated from a quebracho tannin adhesive crosslinked with hexamethylenetetramine and wood flour as a reinforcing filler. The final microstructure of the thermoset ...