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Materials (Basel). 2019 Jun 9;12(11). pii: E1863. doi: 10.3390/ma12111863.

Mechanical Properties of Natural Rubber Filled with Foundry Waste Derived Fillers.

Author information

1
School of Materials Science and Engineering, Nanchang Hangkong University, Nanchang 330063, China. mingshanxue@163.com.
2
School of Materials Science and Engineering, Nanchang Hangkong University, Nanchang 330063, China. jjbxsjz@foxmail.com.
3
School of Materials Engineering, Jiangsu University of Technology, Changzhou 213001, China. jjbxsjz@foxmail.com.
4
School of Materials Science and Engineering, Nanchang Hangkong University, Nanchang 330063, China. jjbxsjz@163.com.
5
School of Materials Engineering, Jiangsu University of Technology, Changzhou 213001, China. shenglei@just.edu.cn.
6
Shiyan Litong New Materials Technology Co., LTD, Shiyan 442599, China. shenglei@just.edu.cn.
7
School of Mechanical and Electronic Engineering, Jingdezhen Ceramic Institute, Jingdezhen 333403, China. yushijin@163.com.
8
School of Mechanical and Electronic Engineering, Jingdezhen Ceramic Institute, Jingdezhen 333403, China. yingzhi110@163.com.
9
Shiyan Litong New Materials Technology Co., LTD, Shiyan 442599, China. bigwfj@foxmail.com.

Abstract

The main aim of this study is to evaluate the possibility of applying foundry dust (FD) derived filler for the preparation of natural rubber (NR) based composites by characterizing the mechanical properties. The as-received FD was processed via a simple and low-cost procedure, including sieving, deironing and milling using a variety of industrial equipment. FD powders before and after silane coupling agent (Si 69) modification were used as fillers for NR. NR composites inserted with different content of modified and unmodified FD up to 50 phr were prepared via dry-mixing method. Then, comprehensive mechanical performances were performed on the corresponding vulcanizates. It was demonstrated that NR composite filled with 50 phr of modified FD exhibited optimized comprehensive mechanical performance. Tear strength and hardness is increased by 21.3% and 12.8% than pure NR, respectively. Tensile strength is reduced by 21% and elongation at break remained nearly unchanged. Additionally, the composite showed a large increment of 50.9% for its wet grip property, while exhibited an increment of only 11.9% for its rolling resistance in comparison with the composite containing 10 phr of FD. The findings of this study may provide a new application area for the large amounts of utilization of foundry waste with a high level of value being added.

KEYWORDS:

foundry dust; natural rubber; tear strength; tensile strength; waste disposal

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