| Reinforcement Effect of Foundry Waste Sand Filler on NR Compound |
| Received:August 31, 2021 Revised:August 31, 2021 |
| DOI：10.12136/j.issn.1000-890X.2023.02.0118 |
| Key Words: foundry waste sand；NR；filler；modification；reinforcement；wear resistance |
| Author Name | Affiliation | E-mail | | FENG Chang | Jiangsu University of Technology | 2893152858@qq.com | | XU Peiwen | Jiangsu University of Technology | | | SONG Hao | Jiangsu University of Technology | | | SHEN Ao | Jiangsu University of Technology | | | XU Ke | Jiangsu University of Technology | | | LEI Sheng* | Jiangsu University of Technology | 373804961@qq.com | | WANG Fajun | Jiangsu University of Technology | |
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| Abstract: |
| The foundry waste sand was physically ground and modified with dodecyltrimethoxysilane，
and then the reinforcement effect of the modified foundry waste sand as a filler on natural rubber
（NR） compounds was investigated. The results showed that the modified foundry waste sand had good
hydrophobicity，good dispersibility in NR and excellent compatibility with NR. The NR compounds filled
with 70～80 phr of the modified foundry waste sand had high hardness，good tensile strength and tear strength，
and excellent wear resistance，demonstrating preferable reinforcement capability. Therefore，the modified
foundry waste sand could be used as a filler to replace part of carbon black and silica in compounds，which
also generated good environmental，social and economic benefits. |
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