Surface modification of eggshell bio-filler in order to improve the mechanical properties of natural rubber anocomposites
(0) INTRODUCTION Natural rubber (NR) is extensively used in compounding processes; however, using this material without reinforcing agents, e.g. Carbon black and silica fillers, is not recommended by researchers. Among different types of inorganic fillers, calcium carbonate (CA) is widely used in almost elastomer compounds due to its wet ability at high loading levels. Furthermore, in order to reduce the high surface energy due to filler-filler interactions, which would lead to agglomerates, it is customary to coat the filler surface chemically using stearic acid 1-3. Recently, nano-sized CA has been considerably used as new reinforcing agent, for the resulting materials have shown superior thermal and mechanical properties 4-6. Many researchers have been studying the impacts of nano-sized CA in elastomeric compounds 3, 5, 6. Mnif et al. 5 found that by adding the mentioned fillers, the toughness of PP/EPR blends would increase, so that the size of elastomeric particles could decrease in the presence of nano-sized CA; furthermore, the mechanical properties could improve as a result of adhesion at interface being improved. Besides the particle size effect, surface topology of filler is of great importance. Modification of nano-sized CA to improve its surface activity toward NBR and EPR is studied by Lipinska et al. 3.
Eggshell bio-filler Calcium carbonate Natural rubber
Mohammad Reza Saeb Hadi Ramezani-Dakhel Raha Sarami Amin Daryaei
Polymer Engineering Department, Islamic Azad University of Mahshahr,Khoozestan,Iran Department of Polymer Engineering and Color Technology, Amirkabir University of Technology, Tehran,I Polymer Group, Technical Faculty, Tarbiat Modares University, Tehran, Iran Islamic Azad University of Shiraz,Sadra new town, Shiraz, Fars, Iran
国际会议
The 2nd International Conference on Nanomechanics & Nanocomposites(第二届国际纳米力学与纳米复合材料会议)
北京
英文
121-124
2010-10-10（万方平台首次上网日期，不代表论文的发表时间）