Increasing the fracture viscosity of highly cross-linked composite polymer matrices

1981 ◽  
Vol 16 (5) ◽  
pp. 509-514 ◽  
Author(s):  
E. B. Trostyanskaya ◽  
P. G. Babaevskii ◽  
S. G. Kulik ◽  
M. I. Stepanova
Keyword(s):  
Polymer Matrices ◽  
Composite Polymer ◽  
Fracture Viscosity

Nano Composite PVA-TiO2 Thin Films for OTFTs

2013 ◽  
Vol 678 ◽  
pp. 335-342 ◽  
Author(s):  
S. Sathish ◽  
Bellan Chandar Shekar ◽  
B.T. Bhavyasree
Keyword(s):  
Thin Films ◽  
Surface Morphology ◽  
Composite Films ◽  
Gravimetric Method ◽  
Dip Coating ◽  
Polymer Matrices ◽  
Poly Vinyl Alcohol ◽  
Organic Thin Film ◽  
Composite Polymer ◽  
Amorphous Nature

Pure PVA and composite thin films of poly vinyl alcohol (PVA)/Titanium dioxide (TiO2) were prepared on pre-cleaned glass substrates by Dip Coating Technique (DCT) and Metal Organic Deposition Technique (MODT). EDS and FTIR spectrum were used to identify the composition of the prepared films. The vibrational peaks observed at 1260 cm-1 and 851 cm-1 are assigned to C–C stretching and CH rocking of PVA. The characteristic band appearing at 1432 cm-1 is assigned to C–H bend of CH2 of PVA. The bands observed around 847 cm-1 and 601cm-1 belong to the asymmetric stretching of Ti–O–Ti groups. The last band at 460 cm-1 is due to the bending mode of Ti–O–Ti. The bands covered by Ti-O were located at 540, 700 and 950 cm-1. From the FTIR spectra, it is observed that some of the peaks of composite films were shifted and some of them were disappeared with respect to the pure compounds. This results manifested the conclusion about the specific interactions in composite polymer matrices and hence the complexation. Thus, complex formation in the composite polymer matrices has been confirmed from this analysis. The thickness of the coated films were measured by using an electronic thickness measuring instrument (Tesatronic-TTD-20), gravimetric method and cross checked by optical spectrophotometer. XRD spectra indicated the amorphous nature of the films. Surface morphology of the coated films was studied by scanning electron microscope (SEM). The surface revealed no pits and pin holes on the surface. Both as grown and annealed films showed predominantly amorphous nature. The observed surface morphology and thermal stability indicated that these films could be used as dielectric layer in organic thin film transistors.

Erosion of composite polymer matrices

Biomaterials ◽  
1997 ◽  
Vol 18 (5) ◽  
pp. 397-403 ◽  
Author(s):  
Achim Göpferich
Keyword(s):  
Polymer Matrices ◽  
Composite Polymer

Structure—Property Relations of High-Temperature Composite Polymer Matrices

1993 ◽  
pp. 493-506 ◽  
Author(s):  
R. J. Morgan ◽  
R. J. Jurek ◽  
D. E. Larive ◽  
C. M. Tung ◽  
T. Donnellan
Keyword(s):  
High Temperature ◽  
Polymer Matrices ◽  
Structure Property ◽  
Composite Polymer ◽  
Property Relations

Determination parameters of 3D printing patriotic composite polymer materials based on ABS plasticse

2018 ◽  
Vol 4 (2) ◽  
pp. 85-90
Author(s):  
Y. M. Dovydenko ◽  
N. A. Ivanova ◽  
S. A. Chizhik ◽  
V. E. Agabekov
Keyword(s):  
3D Printing ◽  
Polymer Materials ◽  
Composite Polymer

Effect of modified aerosil on the formation process, viscoelastic and mechanical properties of polymer matrices based on PMMA/PU IPNs

2019 ◽  
Vol 41 (4) ◽  
pp. 230-239
Author(s):  
L.F. Kosyanchuk ◽  
◽  
O.I. Antonenko ◽  
T.D. Ignatova ◽  
N.V. Babkina ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Formation Process ◽  
Polymer Matrices

scholarly journals Excellent Performances of Composite Polymer Electrolytes with Porous Vinyl-Functionalized SiO2 Nanoparticles for Lithium Metal Batteries

Polymers ◽  
2021 ◽  
Vol 13 (15) ◽  
pp. 2468
Author(s):  
Hui Zhan ◽  
Mengjun Wu ◽  
Rui Wang ◽  
Shuohao Wu ◽  
Hao Li ◽  
...  
Keyword(s):  
Polymer Electrolytes ◽  
Specific Capacity ◽  
Sio2 Nanoparticles ◽  
Inorganic Materials ◽  
Solid Polymer Electrolytes ◽  
Lithium Metal ◽  
Composite Polymer ◽  
Composite Electrolyte ◽  
Composite Polymer Electrolytes ◽  
Lithium Metal Batteries

Composite polymer electrolytes (CPEs) incorporate the advantages of solid polymer electrolytes (SPEs) and inorganic solid electrolytes (ISEs), which have shown huge potential in the application of safe lithium-metal batteries (LMBs). Effectively avoiding the agglomeration of inorganic fillers in the polymer matrix during the organic–inorganic mixing process is very important for the properties of the composite electrolyte. Herein, a partial cross-linked PEO-based CPE was prepared by porous vinyl-functionalized silicon (p-V-SiO2) nanoparticles as fillers and poly (ethylene glycol diacrylate) (PEGDA) as cross-linkers. By combining the mechanical rigidity of ceramic fillers and the flexibility of PEO, the as-made electrolyte membranes had excellent mechanical properties. The big special surface area and pore volume of nanoparticles inhibited PEO recrystallization and promoted the dissolution of lithium salt. Chemical bonding improved the interfacial compatibility between organic and inorganic materials and facilitated the homogenization of lithium-ion flow. As a result, the symmetric Li|CPE|Li cells could operate stably over 450 h without a short circuit. All solid Li|LiFePO4 batteries were constructed with this composite electrolyte and showed excellent rate and cycling performances. The first discharge-specific capacity of the assembled battery was 155.1 mA h g−1, and the capacity retention was 91% after operating for 300 cycles at 0.5 C. These results demonstrated that the chemical grafting of porous inorganic materials and cross-linking polymerization can greatly improve the properties of CPEs.

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