This preview shows page 1. Sign up to view the full content.
Unformatted text preview: es of trioxonuclear complexes have been synthesized and characterized by IR, TGA, X -ray crystallography. The complexes in combination of aluminium dieth yl chloride can be used as ZieglerNatta catalyst for the polymerization of ethylene. Catalytic properties studies were conducted to determine the effect of the chromium and iron on catalytic activity of the complexes. The complexes obtained have been characterized by IR, TGA and DSC. 226 3rd ICYC 2010 Universiti Sains Malaysia POLY-O17 23rd-25th June 2010 PROCESSING AND PROPERTIES OF ETHYLENE-VINYL ACETATE FOAM FILLED WITH WASTE FOAMS
1 H. A. Halim, 2,* C. S. Sipaut and M. N. Mohamad Ibrahim 1 2 School of Chemical Sciences, Universiti Sains Malaysia, 11800 Pulau Pinang, Malaysia School of Engineering and Information Technology, Universiti Malaysia Sabah, locked bag 2073, 88999 Kota Kinabalu, Sabah, Malaysia E-mail: firstname.lastname@example.org 1 Polyurethane (PU) and polyolefin foam is one of the most commonly used material s in the world today in many different applications ranging from house hold and medical product to advance engineering products but it caused serious disposal problems. Recycling process or development of product waste at various techniques has been introduce however it still have room for improve or creating new product from waste foams. In this research, PU and ethylene-vinyl acetate (EVA) waste foam is use as filler in EVA foam production. The blending process was conducted at 110 °C using two roll mill. Different foaming techniques were performed using single stage and heat and chill process. Waste foam concentration was varied up to 30 % by weight of original EVA. Physical, mechanical and morphological properties of filled foam were studied. Single stage (direct expansion) process produce foams with homogeneous expansion, smooth surface finish and thicker foam as compare with heat and chill process. The density and compression strength of foam increases as the percentage of PU waste foam increased. However, EVA/EVA waste foams showed a different result, where the addition of EVA waste foam does not give significant affect on the density and compress...
View Full Document
- Spring '11