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首页> 外文会议>International Seminar on Chemistry >The Effect of Quartz and Rubber Seed Oil Loading on Curing, Tensile and Morphological Properties of Natural Rubber and Ethylene Propylene Diene Monomer Rubber (NR-EPDM) Blending
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The Effect of Quartz and Rubber Seed Oil Loading on Curing, Tensile and Morphological Properties of Natural Rubber and Ethylene Propylene Diene Monomer Rubber (NR-EPDM) Blending

机译：石英和橡胶种子油负载对天然橡胶和乙烯丙烯二烯单体橡胶（NR-EPDM）混合的抗凝，拉伸和形态学性能

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摘要

The necessity of renewable filler and plasticizer has become a big concern to substitute petroleum based that has some negative impacts. Quartz is potentially could be used as a reinforcing filler to improve its physical mechanical properties. While, rubber seed oil also could be applied as plasticizer. This research studied the effect of rubber seed oil (RSO) loading as natural plasticizer on its blending compatibility between NR-EPDM and Quartz. The effect of plasticizing compatibility was examined by applying 1; 1.5 and 2 phr of RSO in NR-EPDM blending with different loading of Quartz (30; 40; 50; and 60 phr). The curing characteristic, tensile properties, morphological/micro-structure (SEM) and the thermal ageing of those composites were evaluated. The results shows that loading of quartz has significant effect on the decreasing cure rate index and increasing the scorch time. Similarly, loading quartz cause decreasing the value of maximum and minimum torque slightly as well as the cross linking density of the composites. Moreover, RSO cause cure rate index decreases which means RSO is able enough to use as plasticizer. The SEM-EDX confirmed that results. The loading of quartz in NR-EPDM composites improve significantly the tensile strength, elongation at break and also hardness value. However, the thermal ageing (circulate hot air at 70 °C for about 48 hours) cause slightly effect to the deterioration of the vulcanizates as showed by the decreasing value of hardness about 1 -5 Shore A, the decreasing of tensile strength about 3-6 N/m~2, the decreasing of elongation at break 50 - 110 %. This is due to serious cross linking effect, stiffening effect and thermal oxidation in the composites as explained in this paper.
机译：可再生填料和增塑剂的必要性已成为替代石油基础的巨大关切。石英可能用作加强填料，以改善其物理机械性能。虽然，橡胶种子油也可作为增塑剂施用。本研究研究了橡胶种子油（RSO）装载作为天然增塑剂的影响，对NR-EPDM和石英的混合相容性。通过施加1来检查塑化相容性的效果;在NR-EPDM中的1.5和2phrs，用不同的石英（30; 40; 50;和60 phr）混合。评价固化特性，拉伸性质，形态学/微结构（SEM）和这些复合材料的热老化。结果表明，石英的装载对降低治愈率指数并增加烧焦时间具有显着影响。类似地，加载石英导致稍微减小最大和最小扭矩的值以及复合材料的交叉连接密度。此外，RSO引起固化率指数降低，这意味着RSO能够用作增塑剂。 SEM-EDX确认结果。 NR-EPDM复合材料中石英的负载显着提高拉伸强度，断裂处的伸长率和硬度值。然而，热老化（在70℃下循环热空气约48小时）对硫化胶的劣化产生略微效应，如硬度约为1-5岸A的降低，拉伸强度的降低约为3- 6 n / m〜2，断裂伸长率下降50-110％。这是由于本文中解释的复合材料中严重的交叉连接效果，加强效果和热氧化。

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