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A Study of WC End-milling Manufacturing and Cutting Ability Evaluation by Using Powder Injection Molding
Ko. Tae-Jo, Kim. Jong-Han, Yoon. In-Joon 한국정밀공학회 International journal of precision engineering and manufacturing 5 Pages
한국정밀공학회 International journal of precision engineering and manufacturing 2009, Vol.10 No.4 13-17 (5 pages)
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Effects of process parameters in plastic, metal, and ceramic injection molding processes
Lee. Shi-W., Ahn. Seok-Young, Whang. Chul-Jin, Park. Seong-Jin, Atre. Sundar V., Kim. Jook-Won, German. Randall M. 한국유변학회 Korea-Australia rheology journal 12 Pages
한국유변학회 Korea-Australia rheology journal 2011, Vol.23 No.3 127-138 (12 pages)
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Improved Electrical Conductivity of a Carbon Nanotube Mat Composite Prepared by In-Situ Polymerization and Compression Molding with Compression Pressure
Ye Ji Noh, Han Sang Kim, Seong Yun Kim 한국탄소학회 Carbon Letters 5 Pages
한국탄소학회 Carbon Letters 2012, Vol.13 No.4 8 243-247 (5 pages)
by using injection molding and extrusion. However, the content of CNT in the CNT mat composite is limited due to the low processability and high viscosity of the thermoplastic resins. In this study, a fabrication method to improve the processability DOI: http://dx.doi.org/ 10.5714/CL.2012.13.4.243 This is an Open Access article distributed under the terms of the Creative Commons Attribution... -
Characterization and influence of shear flow on the surface resistivity and mixing condition on the dispersion quality of multi-walled carbon nanotube/polycarbonate nanocomposites
Young Sil Lee, Kwan Han Yoon 한국탄소학회 Carbon Letters 7 Pages
한국탄소학회 Carbon Letters 2015, Vol.16 No.2 3 86-92 (7 pages)
in a Gold-Star injection molding machine. The injection fow rate, injection melt temperature, and mold temperature were 123 cm 3/s, 280°C, and 80°C, respectively. A schematic diagram for the whole process, including the prepa- ration of the MWCNT/PC composite, compression molding, ex- trusion, and injection molding is provided in Fig. 1. 2.2. Melt extrusion The melt extrusion experiments were... indexer with various loads. The compression-molded, should be eliminated. MWCNT/PC nanocomposite sample exhibited lower percolation thresholds (at 0.8 vol%) and higher electrical conductivity values than those of samples extruded by capillary and injection molding. Shear induced orientation of MWCNT was observed via scanning electron microscopy, in the direction of flow in a PC matrix during the extrusion process. The surface resistivity rose with increasing shear rate, because of the breakdown... -
Study on lowering the percolation threshold of carbon nanotube-filled conductive polypropylene composites
Seung Bin Park, Moo Sung Lee, Min Park 한국탄소학회 Carbon Letters 8 Pages
한국탄소학회 Carbon Letters 2014, Vol.15 No.2 8 117-124 (8 pages)
mainly based on the use of additives, the optimization of pro- cessing conditions, and managing the size distribution [12-14]. Traditional polymer processing methods, including extrusion and injection molding, can be utilized. In this study, we focused Table 1. Properties of various conductive carbonaceous llers [6] Property Carbon nanotube Carbon black Carbon fber Loading requirements 2-5%... one using various mixing methods and the other using immiscible polymer blends. Variants of the conductive PP composite filled with MWCNT was prepared by dry mixing, melt mixing, mechanofusion, and compression molding. The percolation threshold (Φc) of the MWCNT-PP composites was most successfully lowered using the mechanofusion process than with any other mixing method (2-5 wt%). The mechanofusion process was found to enhance formation of a percolation network structure, and to ensure a more...