The properties of composites based on NR/CSM rubber blend and waste rubber powder

GLASNIK HEMIČARA, TEHNOLOGA I EKOLOGA REPUBLIKE SRPSKE Pub Date : 2018-07-20 DOI:10.7251/GHTE1713001M

G. Marković, M. M. Cincović, V. Jovanović, D. Kojić, N. Vukić, S. Samaržija‐Jovanović, J. Budinski-Simendic

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引用次数: 1

Abstract

The use of reclaiming scrap waste rubber is of great ecological interest due to itssignificant influence to the environment. Powdered waste rubber (WRP) can be used asa filler in mixtures with rubbers, thermoplastics, and as modifiers for asphalt. In this workthe composites based on natural rubber (NR) and chlorosufonated polyethylene (CSM)filled with different content of WRP were prepared on a laboratory-size two-roll mixingmill. The curing by sulfur was done at 160º C. The mechanical properties, namely tensilestrength, tensile modulus at 100% elongation, elongation at break and hardness have beenfollowed up as a function of irradiation dose (100; 200; 300; 400 kGy), as well as wasterubber powder content (0; 20; 40; 60; 80; 100 phr). It was assessed that the addition of20 phr waste rubber has improved the properties of obtained elastomeric materials. Theimprovement of composites mechanical properties is in correlation with homogeneousWRP distribution which has been assigned by scanning electron microscopy (SEM).

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NR/CSM橡胶共混物与废胶粉复合材料的性能研究

废橡胶的回收利用对环境有重大影响，具有重要的生态意义。粉末状废橡胶(WRP)可用作橡胶、热塑性塑料混合物的填料，也可用作沥青的改性剂。在实验室规模的双辊混炼机上制备了不同WRP含量的天然橡胶(NR)和氯磺化聚乙烯(CSM)复合材料。在160℃下进行硫固化。力学性能，即抗拉强度、100%伸长率拉伸模量、断裂伸长率和硬度随辐照剂量(100;200;300;400 kGy)，以及废橡胶粉含量(0;20;40;60;80;100 phr)。结果表明，加入20phr废橡胶后，得到的弹性体材料的性能得到了改善。复合材料力学性能的提高与复合材料wrp分布的均匀性有关。

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