Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/50228
標題: Study on the optimum feed compositions of biodegradable cellular foams blend with talc powder (talc)
作者: Peng, J.Y.
彭錦樵
Wei, K.S.
Lui, W.B.
關鍵字: extrusion;talc powder (Mg3Si4O10(OH)(2));biodegradable cellular foams;RSM;optimization;response-surface methodology;plastic foams;optimization;ingredients
Project: Journal of Cellular Plastics
期刊/報告no:: Journal of Cellular Plastics, Volume 41, Issue 5, Page(s) 457-473.
摘要: 
Response surface methodology (RSM) is used to analyze the effect of polyvinyl alcohol (PVA) and talc powder (talc) on the objective (radial expansion ratio, bulk density, compressibility, and spring index) attributes of a biodegradable cushioning extrudate. A rotatable central composite design (CCD) is used to develop models for the objective responses. The experiments are run at 125 degrees C with a feed rate of 27.8 L/h, a screw speed of 215 rpm, and a die diameter of 3.92 mm. Responses are most affected by changes in PVA levels and to a lesser extent by talc levels. Individual contour plots of the different responses are overlaid, and regions meeting the optimum radial expansion ratio of 3.14, the bulk density of 0.106 g/cm(3), the compressibility of 56.12 N, and the spring index of 0.892 are identified at the PVA level of 32% and the talc level of 4%, respectively.
URI: http://hdl.handle.net/11455/50228
ISSN: 0021-955X
DOI: 10.1177/0021955x05056962
Appears in Collections:生物產業機電工程學系

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