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marine grade radiation cross-linked high density polyethylene (HDPE) floater pontoon

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marine grade radiation cross-linked high density polyethylene (HDPE) floater pontoon ( marine-grade-radiation-cross-linked-high-density-polyethylen )

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iNuSTEC2019 IOP Publishing IOP Conf. Series: Materials Science and Engineering 785 (2020) 012033 doi:10.1088/1757-899X/785/1/012033 HDPE dried in oven at 60oC for 24 hours HDPE blend in internal mixer at 50 rpm and 190oC Adding TMPTA then Cooling to room temperature Undergo hotpress machine at 170oC for 15 minutes Irradiation 50, 100, 150 and 200 kGy respectively Characterizations Figure 1. Process flow of preparation of crosslinked HDPE. 2.3. Preparation of HDPE/EVA blends with crosslinker agent The project continued with blending of HDPE and EVA blend with present of TMPTA. Firstly, the HDPE and EVA pellets put into the internal mixer and let it to melt before the TMPTA was added. The compositions of TMPTA that used for the mixing with HDPE/EVA is 3 weight percent meanwhile the HDPE/EVA is 90/10 weight percent. The mixture compounded using internal mixer with a 190oC in temperatures and screw speed of 50 rpm. The compound was allowed to cool in room temperature for a few minutes before subsequently been hot pressed into a 1mm and 4mm thickness sheet using hot press machine at 170°C for about 15 minutes before being irradiated with 50, 100, 150 and 200 kGy. The prepared sample then being characterized and the optimum composition of HDPE/EVA were collected. The process flow details showed in the Figure 2 below. 3

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