Electromagnetic Shielding Effectiveness and Physical Properties of Conductive Fabrics and Carbon Composite Materials
| Autor: | 陳安邦 |
|---|---|
| Rok vydání: | 2014 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 102 The end of the 19th century, human was enjoy electronic products and communications equipment bring convenient, at the same time, people also began to discuss the dangers of electromagnetic wave to human body health. Many studies have shown that the mice were exposure the electromagnetic environment as the same strength of the cell phones, suffering from brain tumors ratio increase greatly. Therefore, shielding the interference of electromagnetic will become an important issue. In this study, the stainless steel wires and polyester filaments were used as raw materials to spinning the stainless steel/polyester composite yarns via the rotor twister machine. Afterward, the stainless steel/polyester composite yarns as the wrapped materials, the stainless steel wires or copper wires as core materials which were used to spinning the conductive composite yarn by the hollow spindle spinning machine. Among of the parameter, the wrapped number was changed as (6.5-16 turns/cm), wrapped layer was as single and double to discuss the tensile strength and elongation of the conductive composite yarn; The conductive composite yarn as the weft yarn, the high strength yarn as the warp yarn which where used to fabricate the composite woven fabrics. Moreover, the composite woven fabrics were evaluated the electromagnetic shielding effectiveness when change the wrapped number of yarns, laminated angle and laminated layers of composite woven fabrics. In addition, this study were also use PP masterbatch, carbon fiber and graphene to prepare the graphene/carbon fiber plastic composite via melt blending method. Graphene is a good nanoscale materials, Graphene layers with high Van der Waals force. Therefore, this research were used the muller (brabander) to dispersive the graphene in the PP polymer. The graphene/carbon fiber plastic composite has various ratio of grapheme:carbon (20：0, 15：5, 10：10, 5：15, 0：20). The graphene/carbon fiber plastic composite was evaluated the FTIR, X-ray diffraction, TGA. The optimum EMSE composite woven fabrics was combined with the The graphene/carbon fiber plastic composite to manufacture the EMSE composite via thermal pressure. From the result of the experiment, the study was obtained the EMSE composite with soft and hard. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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