Development of filler orientation control techniques for improvement function in the thickness direction of injection molded part

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I focused the injection foamed molding as the method of fiber orientation control. As the result of examined two chemical formed agents which different in generation volume of gas, with the chemical foamed agent which is few generation volume of gas, there are lot of micro-cells and closed-cells in the injection molded part, and the cupper plated fiber is turned to thickness direction was ascertained. And the conductive improvement in the thickness direction was ascertained. In addition, with the physical foamed agent using super critical CO2 gas, the cell size was smaller than chemical foamed agent, and resistivity in thickness direction was improved.These results indicate that injection formed molding is effective for the function improvement in the thickness direction.