Fibers morphology

The morphology of the PP/nanotube composite samples was observed both qualitatively and quantitatively. The dispersion and orientation of the nanotubes was verified through transmission electron microscopy (TEM) and scanning electron microscopy (SEM). Finally, the polymer crystal structure and orientation was investigated quantitatively through wide-angle X-ray diffraction (WAXD). 

A Jeol Inc. model lOOS transmission electron microscope operating at 100kV was utilized to view the orientation of the nanotubes. Both drawn and undrawn 

A Jeol Inc. Field Emission model J600F scanning electron microscope, operating at 5kV, was utilized to further examine the orientation of the nanotubes. Both drawn and undrawn samples were imaged to determine the effect of melt drawing on nanotube orientation. The samples were cleaved 

Qualitative evidence of nanotube alignment is observed in both the transmission and scanning electron microscopy images. Therefore as the material is being extruded and melt-drawn, the extensional flow causes nanotube orientation along the fiber axis. As a result, the maximum load transfer can be achieved, leading to the property improvements discussed in Section 8.5. 

A Bruker AXS wide-angle X-ray diffractometer with a Cu Ka average source (k = 1.5418 A) was utilized to look at the crystalline structure of the overall composite sample and to calculate the Herman orientation factor. The samples were run in transmission and reflection modes. In the reflection mode, the 

Electrospun nanofibers usually exhibit a solid interior. However, electrospun nanofibers with other morphologies also exist. 

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Fig. 3. Anisotropic hoUow-fiber morphology exhibiting a dense skin. Courtesy of I. Cabasso.

Amosite, 1 803 3 288, 289, 292 elemental analysis, 3 293t fiber morphology, 3 294t geological occurrence, 3 29 It physical and chemical properties of, 3 300t... 

Amperometric cells, sensors using, 22 271 Amperometric measurements, 14 612 Amphetamine, 3 89-90 Amphibole asbestos, 1 803 3 288 crystal structure, 3 297-298 exposure limits, 3 316 fiber morphology, 3 294-295 silicate backbone, 3 296 Amphibole potassium fluorrichterite, glass- ceramics based on, 12 637 Amphiphile-oil-water-electrolyte phase diagram, 16 427-428 Amphiphile-oil-water phase diagrams,... 

Anterlite, 7 773 Anthanthrone dyes, 9 335—336 Anthelmintics, ethyleneamines application, 8 500t, 506 Anthophylite, 1 803 3 288, 290 fiber morphology, 3 294t world production in 2000, 3 289t Anthraciet coal grade (Netherlands),... 

Dry heat treatment (Figure 13.12), hydrothermal treatment (Figure 13.13), dependent on temperature, as well as swelling the fibers in tetrachloroethane (Figure 13.14), produces a fiber morphology resembling that of known pictures of fracture. Swollen fibers show the typical shapes which cause the breaks in the manufacturing process. 

Evaluation of the Soil-Fiber Morphology Equation. The most direct method of evaluating Equation 2 for Dp is to measure the contact angle ip for the fiber-soil-bath system of interest. 

Zig-zag fiber morphology persists at later stages of digestion and is attributed to retention of the globular domain of LH in fiber The three-dimensional organization of nucleosomes in extended (low ionic strength) chromatin fibers requires the globular domain of LHs and either the tails of LH or the N-terminal tails of H3... 

We have an excellent activated carbon of fiber morphology, so called activated carbon fiber ACF[3]. This ACF has considerably uniform slit-shaped micropores without mesopores, showing characteristic adsorption properties. The pore size distribution of ACF is very narrow compared with that of traditional granular activated carbon. Then, ACF has an aspect similar to the regular mesoporous silica in particular in carbon science. Consequently, we can understand more an unresolved problem such as adsorption of supercritical gas using ACF as an microporous adsorbent. 

Frkanec, L., Jokic, M., Makarevic, J., Wolsperger, K., Zinic, M., Bis(PheOH) maleic acid amide-fumaric acid amide photoizomerization induces microsphere-to-gel fiber morphological transition The photoinduced gelation system. J. Am. 

The diseases attributed to asbestos are a result of the fiber morphology and stability of the fibers rather than any specific chemical reactions between the asbestos and a host organism. It is probable that any refractory substance of similar morphology should stimulate similar diseases. 

Ku, Y. C. Chiou, C. H. "Tests on Fiber Morphology and Chemical Composition of Important Bamboos in Taiwan" Taiwan Foresty Institute Taipei, Taiwan, 1966 p 1-7. 

Grubb, D.T., and Jelinski, L.W. "Fiber morphology of spider silk the effects of tensile deformation". Macromolecules 30(10), 2860-2867 (1997). 

Fiber morphology can be affected during photochemical degradation. Surface damage, such as pitting, can be detected by scanning electron microscope. A review of work in this area has been published recently (103). 

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