1. Application of Surface Modified Nano Zinc- Oxide in Sulfur Vulcanization of Tire Tread Compound I- Azad University, North Tehran Branch IRAN Rubber Industries Engineering and Research Institute Dr. Saeed Taghvaei Mercedeh Malekzadeh Dr. Saeed Taghvaei Mercedeh Malekzadeh

2. Contents  Nanotechnology  More common nanomaterials used in rubber field  Problems consequent using Nano ZnO in rubber matrix  Surface modification of Nano ZnO  Application of surface modified Nano ZnO in tire tread compound  Results

3. Nanotechnology Nanotechnology is a broad field of applied science and technology focused on controlling and exploiting the structure of matter on a scale below 100 nanometers.

4. Why Properties Change in Nano Scale  Increased ratio of surface area to volume present in many nanoscale materials opens new possibilities in surface-based science.  Quantum effects impacting behavior of materials.

5. Nanomaterials Used in Rubber Field  Nano activator (ZnO)  Nano filler (CNT, Nano Silica, Nano Clay)

6. Small size Problems consequent using nano ZnO Hydrophyl surface Agglomeration

7. Steric stabilization Surface modification Electrostatic stabilization

8. Nano Particles Characterization

10. LabelNZNZ+PPGNZ+PEG Surface Area (m 2 /g) 39.7046.5247.38

16. phr NZNZ+PEGNZ+PPG NR75 SBR25 CB50 Aro oil.10 S1.5 CBS0.75 6PPD1.5 TMQ111 Anti lux222 St. Ac.222 NZnO2-- NZnO+PEG-2- NZnO+PPG--2

26. Results  Nano ZnO was successfully surface modified by PEG and PPG  The adsorption has done by hydrogen bond  PEG, contained compound has shown faster curing system and better  Improving the properties like abrasion, tensile strength, modules 100%, modules 300% and elongation

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