Crystallization and orientation behaviors of poly(vinylidene fluoride) in the oriented blend with nylon 11

Hydrophilicity and crystallization behavior of PVDF/PMMA/TiO2(SiO2) composites prepared by in situ polymerization

“…8b, only a broad amorphous peak at about 22°is observed, indicating that the SiO 2 used in this work is present in an amorphous form. For the control sample, PVDF shows four main characteristic peaks at 18.62, 20.24, 26.92, and 40.52°, attributed to the planes (020), (110), (021), and (002) of the typical α phase [35][36][37]. The similar WAXD patterns observed for the composites suggest that TiO 2 and SiO 2 nanoparticles have no effect on the crystalline phase of PVDF, in good agreement with the above FTIR analysis.…”

Crystallization of PVDF in the PVDF/PMMA blends precipitated from their non-solvents: Special “orientation” behavior, morphology, and thermal properties

“…The bands at 512, 838, and 1175 cm À 1 are related to the b phase of PVDF for the PVDF/PMMA blends crystallized from good solvents DMF, [DE73], and [DE46] [7,19,25]. As ethanol content increases to 70%, some new bands at 490, 532, 614, 762, 796, and 976 cm À 1 , associated to the a phase of PVDF, appear in the IR spectra [7,19,[25][26][27]. Therefore, it can be deemed that PVDF crystallizes into a mixture of a and b phases when PVDF/ PMMA solution is dropped into the mixed solvent with ethanol content Z70%.…”

“…More recently, the oriented crystallization in the polymer blend containing PVDF has been investigated by several researchers [14][15][16][17][18][19][20]. Kaito et al have studied the crystallization and orientation behavior of PVDF in the blend with polyamide 6 (PA6) [15] and polyamide 11 (PA11) [19,20]. Different orientation behavior occurred in the two blends; they thought that the domain size influenced the mechanism of oriented crystallization.…”

Mechanistic Investigation into the Unique Orientation Textures of Poly(vinylidene fluoride) in Blends with Nylon 11

“…[2][3][4][5][6][7][8][9][10] The orientation and crystallization behaviors of some crystalline/crystalline polymer blends have been investigated. [11][12][13][14][15][16][17][18] A component with a lower melting temperature is melt-crystallized in the oriented matrix of the other component having a higher melting temperature. Multi-axially oriented materials can be obtained by this method, and the materials show some unique mechanical properties, as compared with an as-stretched sample.…”

“…Multi-axially oriented materials can be obtained by this method, and the materials show some unique mechanical properties, as compared with an as-stretched sample. [17,18] In a previous paper, the orientation and crystallization behaviors of oriented films of nylon 11/poly(vinylidene fluoride) (PVDF) blends have been studied. [16] PVDF is dispersed in the matrix of nylon for the isotropic blend sample.…”