| Influence of Core-shell Structural Zinc Oxide on Properties of NR Compounds and It Application in Tread Compound of Steel-belted Radial Tire |
| Received:March 17, 2023 Revised:March 21, 2023 |
| DOI：10.12136/j.issn.1000-890X.2025.02.0115 |
| Key Words: core-shell structural zinc oxide；NR；steel-belted radial tire；tread compound；physical property；dynamic mechanical property |
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| Abstract: |
| Taking light calcium carbonate as a carrier，the core-shell structural zinc oxide with zinc oxide content （mass fraction） of 30%，40%，50% and 60% was prepared.The core-shell structural zinc oxide was compared with the indirect zinc oxide and active zinc oxide NC105 to study the influence of core-shell structural zinc oxide on the properties of NR compounds and it application in tread compound of steel-belted radial tire.The results showed that the Shore A hardness，tensile strength，elongation at break and tear strength of NR vulcanizates and tread compound of steel-belted radial tire with the core-shell structural zinc oxide with 50% zinc oxide content and the indirect zinc oxide were comparable.The loss factor at 60 ℃ of tread compound with the core-shell structural zinc oxide and active zinc oxide NC105 was not significantly different.The compounds with the core-shell structural zinc oxide maintained or enhanced its performance while reducing the zinc oxide content，achieving the goal of zinc reduction and quality improvement. |
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