NONBLACK FILLERS FOR ELASTOMERS TMT （非弹性体TMT的填充物）.pdf

13th International Research/Expert Conference ”Trends in the Development of Machinery and Associated Technology” TMT 2009, Hammamet, Tunisia, 16-21 October 2009 NON-BLACK FILLERS FOR ELASTOMERS Adnan Mujkanović1 2 2 , Ljubica Vasiljević , Gordana Ostojić 1. University of Zenica, Faculty of Metallurgy and Materials Science 2. Alumina Factory AD Birač Zvornik ABSTRACT Almost all rubber products utilize fillers as reinforcing agents. Functional fillers transfer applied stress from the elastomer matrix to the strong and stiff mineral. Of the ingredients used to modify the properties of rubber products, the filler often plays a significant role. Most of the rubber fillers used today offer some functional benefit that contributes to the processability or utility of the rubber product. The non-black fillers for elastomers are calcium carbonate, kaolin clay, precipitated silica, talc, barite, amorphous silica, diatomite, etc.. This papers deals with three most widely used types of non-black fillers: calcium carbonate, kaolin clay and precipitated silica. Keywords: fillers, elastomers, calcium carbonate, kaolin clay, precipitated silica 1. INTRODUCTION A filler is, in the most general term, a finely divided solid that is used to augment weight or size or fill space. Although the original purpose is to lower the cost of the products, prime importance is nowdays attached to the selective functional fillers that are able to modify the mechanical, electrical and/or optical properties of a material in which it is dispersed. From the inception of the elastomer industry, the importance of fillers in providing durability and p