The time scales of motion of filler and polymer are comparable.110 During the deformation process filler is able to create temporary crosslinks between the polymer chains, thereby enhancing strength. The mobility of the filler particle is severely reduced when the polymer matrix is below glass ...
(1986): Yield stress etermination of styrene-butadiene-styrene triblock copolymer solutions. J. MacromoL Sei. Phys. B,25,153-169.De Kee D, Mohan P, Soong DS (1986) Yield stress determination of styrene-butadiene-styrene triblock copolymer solutions. J Macromol Sci Phys 25:153-169...
However, synthetic-microgel-based YSFs may be sensitive to ionic strength. Continuous-phase-based YSFs are mostly derived from polymers, such as silicone elastomers. The yielding transition of these YSFs is caused by the disentangling and stretching of polymer chains; therefore, the printing ...
ASTM D638- Standard Test Method for Tensile Properties of Plastics ISO 527-1:2012- Determination of tensile properties. General principles pretreatment, temperature, humidity, and machine speed Tensile strength at yield Tensile strength at break ...
The high thermal stability of the PMVS resins cannot be attributed to the strength of the silazane bond, which is about 30 kcal/mole lower than that of the siloxane (Si--O) bond. Indeed, many simple polysilazanes show poor thermal stability. For example, polydimethylsilazane has essentially...
to be capable of grafting the pre-carbon matrix to the carbon-fiber reinforcement. This can not only enhance the interfacial strength of the composites described herein but also have more far-reaching applications for other classes of carbon-fiber composites. Another completely unknown frontier is th...
A parallel-plate constant-stress rheometer is used to measure the yield stress y, and the post-yield flow curve T(), where is shear stress and is shear rate, for microphase-separated triblock copolymer melts. Five polymer samples, all styrene-butadiene-styrene but with differing composition ...
Effect of Radiation Crosslinking on the Yield Strength of a Carbon Fiber Reinforced Tetrafluoroethylene–Ethylene CopolymerRADIATIONCARBON fiber-reinforced plasticsABSORBED doseCARBON fibersCARBON compositesCOMPOSITE materialsFLUOROELASTOMERSHigh Energy Chemistry -...
ESR spectroscopy confirmed that the propagating species is of allylic structure during the photopolymerization of ODS in the crystalline state, and that it is long-lived because of the immobility of the polymer chain produced. An alternating copolymer of ODS with oxygen is produced during the ...
9. The polarizing film of claim 1, wherein the polyolefin is a mixture of polypropylene (PP) and a polyethylene-polypropylene (PE-PP) copolymer, and the polyethylene and polypropylene (PE-PP) copolymer comprises ethylene in an amount of about 1 to about 50 wt %, based on the total weight...