Scanning electron microscopy nylon

Scanning Electron Microscopy. The surface of an untreated nylon sample appeared smooth and uniform (Figure 10(A)). Similar results were observed for the control nylon samples exposed to 640 AFU of darkness conditions (Figure 10(B)). However, following 640 AFU of light exposure, the fiber surface of the control fabric showed some pitting and cavities (Figure 10(C)). 

Scanning electron microscopy (SEM) combined with energy dispersive X-ray (EDX) analysis could be used to physico-chemical characterization of SILMs [26]. This technique allows the characterization of the membrane surface morphology and the examination of the global chemical composition of the membranes and the distribution of the ILs within pores. Figure 11.2 shows examples of SEM micrographs of a plain nylon membrane and supported liquid membranes based on [bmim ][PF ] prepared by using the pressure method [26]. 

Figure 5.88. Scanning electron microscopy study of brittle failure in an impact modified nylon molded article reveals classic fracture morphology. The locus of failure (arrow) is seen (A) with surrounding mirror (M), mist and ridged hackle (H) regions propagating out into the bar. A higher magnification view of the flaw and mirror is shown (B). The flaw (C) appears to be a round fiber, likely a contaminant.

Figure 5.97. Scanning electron microscopy of a glass fiber reinforced nylon shows exeellent eompat-ibility between the fiber surfaces and the matrix. Short, nearly lateral failure across the matrix and fiber is observed (A). Some glass fibers exhibit classical brittle fracture (arrow) (B). Adhesion of the matrix resin is seen (arrowheads) at the fiber surfaces (C).

Figure 16.9 Effect of viscosity ratio on particle size of SPS in the fiber. The photographs are scanning electron microscopy pictures of the SPS phase that remains after dissolving away the nylon 6. These have been collected on filters so the spatial arrangement is not significant. MFR, melt flow rate RV, relative viscosity.

FIGURE 2.11 Scanning electron microscopy image of the electrospun Ultramid B24 N03 (Nylon-6) nanofiber fabricated using needleless electrospinning setup (El Marco NanoSpider). 

Figure 5.70. A phase contrast optical micrograph (A) of an impact modified nylon shows the fine dispersion of modifier in the matrix. Transmission electron microscopy micrographs of a cryosection, stained with ruthenium tetroxide (B and C), show more detail and finely dispersed subinclusions (arrows) within the elastomeric phase. Scanning transmission electron microscopy (D) of an unstained cryosection shows less dense regions in a darker background due to mass loss of the rubber phase during exposure to the electron beam, resulting in contrast enhancement.

TEM and scanning transmission electron microscopy (STEM) of the same organomontmorillonite-nylon 6 nanocomposite by Yoon et al. [21] seemed to be consistent with the observations by Rouse et al. [18]. TEM and STEM photographs of montmorillonite in nylon 6 taken parallel to the normal direction of the injection-molded polymer nanocomposites indicate irregular morphology that would not be duplicated by a regular disk shape. 

---