| Interactions between titanium dioxide and NR |
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| DOI： |
| Key Words: titanium dioxide；tensile strength；crosslinking density；reinforcement |
| Author Name | Affiliation | | ZHANG Shi-qi | Nanjing University of Science and Technology | | JI Qing-min | University of Chikurami | | JIA Hong-bing | Nanjing University of Science and Technology |
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| Abstract: |
| The interactions between common titanium dioxide or nano-titanium dioxide and NR were investigated.The results showed that the titanium dioxide didn’t react chemically with NR and had a shielding effect on the chemical reaction between curing system and NR；the shielding effect，physical action and reinforcement of titanium dioxide were directly proportional to its specific surface area and oil factor，and inversely proportional to its particle size and pH value；and the chemical action accounted for 75.7% of the whole interaction between nano-titanium dioxide and NR by adding coupling agent NDZ-101 resulting in the increase of tensile strength for NR vulcanizate by 100%. |
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