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Effects of Surface Modification of Mg(OH)2 with Polysiloxane Oil and Silica Additive on the Flame Retardancy and Mechanical Properties of LDPE-Mg(OH)2 Composites

Published online by Cambridge University Press:  01 February 2011

K. Kodama ,
T. Hyodo ,
Y. Shimizu  and
M. Egashira
K. Kodama
Affiliation:
Graduate School of Science and Technology, Nagasaki University, 1–14 Bunkyo-machi, Nagasaki 852–8521, Japan YAZAKI Parts Co., Ltd., 1500 Mishuku Susono-shi, Shizuoka 411–1194, Japan
T. Hyodo
Affiliation:
Faculty of Engineering, Nagasaki University, 1–14 Bunkyou-machi, Nagasaki 852–8521, Japan
Y. Shimizu
Affiliation:
Graduate School of Science and Technology, Nagasaki University, 1–14 Bunkyo-machi, Nagasaki 852–8521, Japan
M. Egashira
Affiliation:
Faculty of Engineering, Nagasaki University, 1–14 Bunkyou-machi, Nagasaki 852–8521, Japan
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Abstract

Composites of low density polyethylene (LDPE) and 40 wt% Mg(OH)2 modified with several kinds of polysiloxane oils were prepared in order to evaluate the effect of the surface modification of Mg(OH)2 on the mechanical properties and oxygen index of the composites. A composite containing Mg(OH)2 modified with methylhydrogen polysiloxane oil showed an oxygen index of 23.8% O2 and an elongation of 425%. These values were superior to other composites containing Mg(OH)2 modified with other kinds of polysiloxane oils. The oxygen index could be enhanced up to 24.8% by co-addition of 5 wt% fumed silica as another flame retardant to the composite of LDPE and 35 wt% Mg(OH)2 (modified with methylhydrogen polysiloxane oil), while fixing the total amount of the flame retardants at 40 wt%.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 847: Symposium EE – Organic/Inorganic Hybrid Materials , 2004 , EE9.35
Copyright
Copyright © Materials Research Society 2005

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References

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