Abstract
Abstract This paper has presented a new foaming technology of selective hybrid-structured polymer film with expanded pores. The porous structure of closed pore was firstly fabricated by applying the 355nm UV-pulsed laser to 0.1mm thick film that was uniformly mixed with PP pellets, copper powder, and CBA (Chemical Blowing Agent).In order to expand pore size of closed-cell shape, LAMO(Laser Aided Micro pore Opening) processing was conducted to heat the copper powder, and then the bigger pore size of closed-cell more than existing pore size was successfullyformed because of rapid conduction of heated metal powder. From the experimental results, various process parameters such as laser fluence, intensity, scan rate, spot size and density of powder and CBA were considerablyconsidered to reveal the correlation among the pore characteristics. In the future, a function experiment will be carriedout to use the hybrid film of industrial applications. Key Words : Absorption ratio, Chemical blowing agent, Copper powder, UV Laser
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More From: Journal of the Korea Academia-Industrial cooperation Society
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