Determination of Melting Point of Polyethylene Based on Inverse Opal

Abstract:

The thermal tunable behavior of polyethylene inverse opal photonic crystals was investigated and the mechanism of this behavior was illustrated. Based on these researches, a method of determination of melting point was established. This principle of such method is that at the temperature of above the melting point, the molecular chain of the materials started to move and caused the destruction of the ordered nanostructure of the inverse opal. This destruction could be real-time monitored by the reflectance spectra. In addition, this process could also be observed by naked eyes because the structure color of the materials was also changed. Thus, the melting point of the materials could be detected by our method without using complex and expensive analyzer.

• Periodical: Applied Mechanics and Materials (Volumes 543-547)
• Pages: 3814-3817
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.543-547.3814
• Online since: March 2014
• Authors: Dong Mei Zhao, Li Guo Sun*, Jian Li
• Keywords: Inverse Opal Photonic Crystal, Melting Point, Optical Method, Polyethylene

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