Study On Improving The Property Of Tire Shoulder Filled With Carbon Nanotubes

Multiwalled carbon nanotubes(MWNTs) exhibit unique mechanieal, electronic and magnetic properties, which allow them to be used as possible reinforcing materials for compsites.1, A latex compounding process has been employed to prepare nanocomposites based on natural rubber (NR) and MWNT with different types of MWNT. Mechanical properties, electrical conductivity and thermal conductivity of NR/MWNT nanocomposites are improved, by mechanical, electrical and thermal conductivity tests. Comparing to MWNT/NR nanocomposites filled with pure MWNT, MWNT/NR nanocomposites filled with Carboxylated multi-walled carbon nanotubes has more excellent performance in all aspects.2, Different types of processes has been employed to prepare NR/MWNT mixing rubber with different amount of MWNT. With the increasing mount of MWNT, the mixing rubbers'conductivity is improved. What's more, if NR/MWNT suspension prepared by coating process can not be assured during drying, its conductivity will be worse, compared to latex compounding NR/MWNT's.3, MWNT were modified by multifunetional silane, Si69, KH550, and Si69&KH550. The characteristic of fore-and-aft chemically modified MWNT-COOH were analyzed by Fourier Transform Infrared Spectroscopy, X-ray Diffraction. Mechanical properties of NR/MWNT nanocomposites, which prepared by spay drying and modified by different types of coupling agent, is improving. Electrical conductivity is increasing a little. And thermal conductivity is almost unchanging.4, A spray drying approach has been adopted to prepare NR/MWNT nanocomposites, modified by KH550. With the increasing volume fraction of carbon nanotubes, mechanical properties, electrical conductivity and thermal conductivity of NR/MWNT nanocomposites are improved.