Tubular structure and well dense of aligned carbon nanotubes (CNTs) were formulated using two-stage catalytic chemical vapor deposition apparatus. In this experiment, aligned CNT was synthesized in the range of 700–900°C temperatures with increment rate of 50°C per sample. The aligned CNT properties were investigated via field emission scanning electron microscope, micro-Raman spectrometer and thermogravimetric analyzer. The experimental results showed that aligned CNT properties were highly dependent on synthesis temperature changes. The optimum temperature of higher crystallinity was observed at 800°C synthesis temperature. However, the highest yield of nanotubes (~99.99%) was obtained at 900°C synthesis temperature. Aligned CNT orientation was in a parallel form and packed together in orderly manner. The behaviors of aligned CNT will be discussed in detail in this paper.
Biodegradable PLA which is produced by polymerization of lactic acid derived from the starch of plants is a good candidate for replacing the current petroleum-based polymers such as polystyrene (PS) or Polypropylene (PP) in food packaging application. These petroleum-based polymers do contribute to large-scale environmental pollution as it is a non-degradable polymer. Being classified as Generally Recognized As Safe (GRAS) for the food contact applications, PLA film for food packaging application can be synthesized in lab-scale and mass production by using solvent casting and injection molding which are common for the thermoplastic fabrication with the fast production and low in cost. The characterization methods used for the PLA film analysis can be done by the Universal Tensile machine (UTS) in which the main characteristics of the polymer film compatibility and its performance with the combined materials have been discussed in comparison with those of pure polymer films.
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