Negative air ion releasing properties of tourmaline/bamboo charcoal compounds containing ethylene propylene diene terpolymer/polypropylene composites

doi:10.1002/app.30003

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Title:	Negative air ion releasing properties of tourmaline/bamboo charcoal compounds containing ethylene propylene diene terpolymer/polypropylene composites
Authors:	Yeh, Jen-taut;Hsiung, Han-hsing;Wei, Wei;Zhu, Ping;陳幹男;Chen, Kan-nan;Jiang, Tao
Contributors:	淡江大學化學學系
Keywords:	Composites;poly(propylene) (pp);resins
Date:	2009-07-01
Issue Date:	2010-08-09 15:50:16 (UTC+8)
Publisher:	Wiley-Blackwell
Abstract:	The average concentrations of negative air ions (Cion-) emitted from tourmaline (T), bamboo charcoal (B) particles, and tourmaline/bamboo charcoal (T/B) compounds containing polypropylene (PP) and ethylene propylene diene terpolymer/polypropylene (EPDM/PP) composite specimens under varying testing conditions were investigated in this study. The Cion- values emitted from T or B filled PP and EPDM/PP composite specimens reached a maximum value as their T or B contents approached the 5 and 3 wt % optimum values, respectively. In contrast, the Cion- values of T/B compounds filled PP and EPDM/PP composite specimens were significantly higher than their theoretical Cion- values estimated using the simple mixing rule, and reached a maximum value as the weight ratio of T to B reaches an optimum value. At this optimum T/B weight ratio, the Cion- values of T/B compounds filled PP and EPDM/PP composite specimens reached another maximum as their total compound loadings reached the optimum loading of 6 and 4 wt %, respectively. The Cion- values of the PP/T/B and EPDM/PP/T/B specimens increased significantly as they were tested under dynamic mode or by increasing the testing temperatures. The T and/or T/B powders filled PP and EPDM/PP specimens exhibited significantly higher tensile strength (f) and elongation at break (f) values than did the B filled PP and EPDM/PP specimens with the same filler loadings, respectively. Energy dispersive X-rays, particle size, and SEM morphology analysis of the filler particles present in the T, B, and T/B filled composite specimens were performed to understand these interesting negative air ion and tensile properties.
Relation:	Journal of Applied Polymer Science 113(2), pp.1097-1110
DOI:	10.1002/app.30003
Appears in Collections:	[Graduate Institute & Department of Chemical and Materials Engineering] Journal Article

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