전자빔에 의하여 가교된 EVA/HDPE 복합재료의 제조 및 평가
Preparation and Characterization of EVA/HDPE Composites Crosslinked by Electron Beam Irradiation
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초록
The preparation and characterization of poly(ethylene-co-vinyl acetate)/high-densitypolyethylene (EVA/HDPE) composites crosslinked by electron beam irradiation were investigated inthis study. Matrix resins (EVA and HDPE) and additives, such as flame retardant, antioxidant, andlubricant, were melt-mixed and then were compression molded in a hot-press molder to obtain thesheet-type samples. The prepared sheets were electron beam-irradiated at various absorbed dosesof 50~200 kGy in air. The gel contents, mechanical and thermal properties, and flame retardancywere evaluated. As a result, the gelation content, flame-retardancy, thermal, and mechanicalproperties were found to be increased by electron beam irradiation. These results indicate thatelectron beam irradiation is a powerful tool to prepare high-performance polymer composites dueto its advantages such as no use of toxic chemicals, simple, controllable, and fast process.
Abstract
The preparation and characterization of poly(ethylene-co-vinyl acetate)/high-densitypolyethylene (EVA/HDPE) composites crosslinked by electron beam irradiation were investigated inthis study. Matrix resins (EVA and HDPE) and additives, such as flame retardant, antioxidant, andlubricant, were melt-mixed and then were compression molded in a hot-press molder to obtain thesheet-type samples. The prepared sheets were electron beam-irradiated at various absorbed dosesof 50~200 kGy in air. The gel contents, mechanical and thermal properties, and flame retardancywere evaluated. As a result, the gelation content, flame-retardancy, thermal, and mechanicalproperties were found to be increased by electron beam irradiation. These results indicate thatelectron beam irradiation is a powerful tool to prepare high-performance polymer composites dueto its advantages such as no use of toxic chemicals, simple, controllable, and fast process.
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