Effects of cavity surface temperature on reinforced plastic part surface appearance in rapid heat cycle moulding
作者： Guilong Wang , Guoqun Zhao , Xiaoxin Wang
DOI: 10.1016/J.MATDES.2012.08.039
关键词: White light interferometry 、 Composite material 、 Materials science 、 Polypropylene 、 Critical value 、 Gloss (optics) 、 Welding 、 Surface finish 、 Fibre-reinforced plastic 、 Optical microscope
摘要: Abstract The influences of the cavity surface temperature just before filling on appearance and texture moulded reinforced plastic parts in rapid heat cycle moulding (RHCM) are investigated. Two typical plastics including ABS/PMMA/nano-C a CO 3 20% fibre polypropylene (FRPP) tested experiments. roughness, gloss morphology part characterized with white light interferometer, meter, optical microscope, respectively. It is observed that has significant influence appearance. With increase filling, aesthetic quality can be greatly improved. There critical value for each plastic. As reaches value, will reach optimal level low roughness high gloss. weld mark V-shaped structure while FRPP hump-shaped structure. width reduces gradually until it disappears completely height decreases firstly then increases. mechanisms improvement by increasing generation disclosed.
sci-hub.se 参考文章(38)
Donggang Yao, Thomas E. Kimerling, Byung Kim, High‐frequency proximity heating for injection molding applications Polymer Engineering and Science. ,vol. 46, pp. 938- 945 ,(2006) , 10.1002/PEN.20548
H. Ku, H. Wang, N. Pattarachaiyakoop, M. Trada, A review on the tensile properties of natural fiber reinforced polymer composites Composites Part B-engineering. ,vol. 42, pp. 856- 873 ,(2011) , 10.1016/J.COMPOSITESB.2011.01.010
B. Sha, S. Dimov, C. Griffiths, M.S. Packianather, Investigation of micro-injection moulding: Factors affecting the replication quality Journal of Materials Processing Technology. ,vol. 183, pp. 284- 296 ,(2007) , 10.1016/J.JMATPROTEC.2006.10.019
Guoqun Zhao, Guilong Wang, Yanjin Guan, Huiping Li, Research and application of a new rapid heat cycle molding with electric heating and coolant cooling to improve the surface quality of large LCD TV panels Polymers for Advanced Technologies. ,vol. 22, pp. 476- 487 ,(2011) , 10.1002/PAT.1536
S. Fellahi, A. Meddad, B. Fisa, B. D. Favis, Weldlines in injection‐molded parts: A review Advances in Polymer Technology. ,vol. 14, pp. 169- 195 ,(1995) , 10.1002/ADV.1995.060140302
Francesco Pisciotti, Antal Boldizar, Mikael Rigdahl, Ingrid Ariño, Effects of injection-molding conditions on the gloss and color of pigmented polypropylene Polymer Engineering and Science. ,vol. 45, pp. 1557- 1567 ,(2005) , 10.1002/PEN.20358
Yung-Kuang Yang, Optimization of Injection-Molding Process for Mechanical and Tribological Properties of Short Glass Fiber and Polytetrafluoroethylene Reinforced Polycarbonate Composites with Grey Relational Analysis: A Case Study Polymer-plastics Technology and Engineering. ,vol. 45, pp. 769- 777 ,(2006) , 10.1080/03602550600611826
Jonathan N. Coleman, Umar Khan, Werner J. Blau, Yurii K. Gun’ko, Small but strong: A review of the mechanical properties of carbon nanotube–polymer composites Carbon. ,vol. 44, pp. 1624- 1652 ,(2006) , 10.1016/J.CARBON.2006.02.038
P. G. Wlodarski, J. F. T. Pittman, J. Sienz, K. Crow, R. Foad, Quantified Surface Improvement Using Temperature Cycle Injection Moulding International Polymer Processing. ,vol. 26, pp. 323- 330 ,(2011) , 10.3139/217.2454
Shia-Chung Chen, Ying-Cheih Wang, Sung-Chih Liu, Jin-Chuan Cin, Mold temperature variation for assisting micro-molding of DVD micro-featured substrate and dummy using pulsed cooling Sensors and Actuators A-physical. ,vol. 151, pp. 87- 93 ,(2009) , 10.1016/J.SNA.2009.02.015