Crystallization and Melting of Binary Mixtures of Nylon 6 and Nylon 66. A Study by DSC

Reactive-ion etching of nylon fabric meshes using oxygen plasma for creating surface nanostructures

“…The glass transition temperature of the plasma-treated samples were found to be significantly higher than the control sample, this is an indication that the material after undergoing plasma treatment has changed its molecular arrangement as also supported by the significant decrease in the crystallinity of the samples [2,8]. The decrease in the crystalline phase gives rise to the increase in the amorphous phase of the material.…”

“…Although the fibers possess excellent mechanical, chemical, and thermal properties, there are still some limitations on its uses and applications [1][2][3][4][5][6][7][8][9][10]. In general, to extend the use and applications of polymers, several treatments are employed and some of them uses atmospheric pressure plasma to improve the dye uptake of nylon 6 fibers with different absorbed moisture [1] and to enhance the antibacterial activity and natural dyeing properties of nylon 6 fabrics [6]; direct low-pressure and low-temperature plasma to enhance the adhesion of carbon nanotubes on nylon 6,6 fabrics [3], to improve the mechanical properties of nylon 6 plain woven fabrics [5], to correlate the crystallinity and plasma susceptibility of poly(ethylene terephthalate) (PET) and nylon 6,6 fibers [10], and to achieve superhydrophilic or superhydrophobic properties for lignocellulosic seagrass, PET, and poly(tetrafluoroethylene) (PTFE) materials [11][12][13][14]; gas discharges in improving the wettability, superhydrophobicity and antibacterial properties of PTFE [15][16][17][18]; laser to improve the dyeability of poly(amide) 6,6 knitted fabrics [19]; and microwave jet plasma for the functionalization of electrospun poly(amide) 6 nanofibers to improve the adhesion properties during the production of composites in tissue engineering [7].…”

Crystalline/Crystalline Phase Transitions in Polymer Systems Consisting of Finite‐Size Crystals in Each Crystalline Phase: Generalized Gibbs‐Thomson Equation

“…At the onset of this series, a statistical theory of melting in multicomponent systems of polymers and solvents was developed [1] and the theory was applied to binary systems of two crystallizable polymer components. [2,3] As a subsequent work, we have undertaken to deal with the problem of phase transitions in multicrystalline phase systems of one polymer component, where each crystalline phase is consisted of polymer crystals of a finite size.…”

Morphological Study by TEM on Thin Films of Nylon-6, Nylon-6,6, and Their Blends As-cast from Formic Acid Solution

“…Extensive efforts have been, therefore, made for mechanical, thermodynamic and/or structural studies of the blends. [2][3][4][5][6][7][8][9][10][11] N6 and N66 are miscible in their molten state, 1 and are also expected to be miscible in their solution state. 7 Some morphological studies by transmission electron microscopy (TEM) of as-solution-cast crystalline thin films of each pure component have been reported so far (e.g., refs 6, 12, and 13 for N6, and refs 6, 14, and 15 for N66; mostly, cast from solutions in formic acid), but there have been few reports on morphology of their blend films as-cast from solution.…”

“…[2][3][4][5][6][7][8][9][10][11] N6 and N66 are miscible in their molten state, 1 and are also expected to be miscible in their solution state. 7 Some morphological studies by transmission electron microscopy (TEM) of as-solution-cast crystalline thin films of each pure component have been reported so far (e.g., refs 6, 12, and 13 for N6, and refs 6, 14, and 15 for N66; mostly, cast from solutions in formic acid), but there have been few reports on morphology of their blend films as-cast from solution. 6 In particular, although selected-area electron diffraction (SAED) patterns obtained from the same specimenarea tilted at a series of angles are very important to identify the crystal modifications and/or crystallite orientation in a given specimen film, such SAED experiments by specimen-tilting have been done in a few reports only on N66 14,15 and in no report on their blends, to our knowledge.…”