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首页> 外文期刊>Journal of Applied Polymer Science >Effects of EPDM-g-MAH compatibilizer and internal mixer processing parameters on the properties of NR/EPDM blends: An analysis using response surface methodology
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Effects of EPDM-g-MAH compatibilizer and internal mixer processing parameters on the properties of NR/EPDM blends: An analysis using response surface methodology

机译：EPDM-g-MAH增容剂和内部混合器加工参数对NR / EPDM共混物性能的影响：使用响应面法的分析

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This study evaluates the effects of ethylene-propylene-diene-monomer grafted maleic anhydride (EPDM-g-MAH) and internal mixer melt compounding processing parameters on the properties of natural rubber/ethylene-propylene-diene rubber (NR/EPDM) blends. Using Response Surface Methodology (RSM) of 2(5) two-level fractional factorial, we studied the effects of NR/EPDM ratio, mixing temperature, Banbury rotor speed, mixing period, and EPDM-g-MAH contents in NR/EPDM blends. The study found that the presence of EPDM-g-MAH in NR/EPDM blends had a predominant role as a compatibilizing agent, which affected the processability and properties of the final material. We also determined the model fitting with constant determination, R-2 of 99.60% for tensile strength (TS) response with a suggested combination of mixing process input parameters. The reproducibility of the proposed mixing strategy was then confirmed through model validation with a minor deviation at +2.303% and higher desirability of 0.960. This study is essential in providing a process design reference for NR/EPDM blends preparation by melt-blending and the role of a compatibilizer from the systematic Design of Experiment (DOE) approach. The experimental findings were further supported with swelling and cross-link density measurements, differential scanning calorimetry analysis, and observation of fracture morphology using a scanning electron microscope. (c) 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 42199.
机译：这项研究评估了乙烯-丙烯-二烯-单体接枝马来酸酐（EPDM-g-MAH）和内部混合器熔融混炼工艺参数对天然橡胶/乙烯-丙烯-二烯橡胶（NR / EPDM）共混物性能的影响。使用2（5）两级分数阶乘的响应表面方法（RSM），我们研究了NR / EPDM共混物中NR / EPDM比，混合温度，班伯里转子速度，混合时间以及EPDM-g-MAH含量的影响。研究发现，NRDM / EPDM共混物中EPDM-g-MAH的存在主要起相容剂的作用，这影响了最终材料的可加工性和性能。我们还确定了模型拟合的恒定确定性，R-2为99.60％的抗拉强度（TS）响应，并建议使用混合过程输入参数进行组合。然后，通过模型验证确认了拟议的混合策略的可重复性，偏差较小，为+ 2.303％，较高的期望值为0.960。这项研究对于为通过熔融共混制备NR / EPDM共混物提供工艺设计参考以及系统实验设计（DOE）方法中增容剂的作用至关重要。实验结果得到溶胀和交联密度测量，差示扫描量热分析以及使用扫描电子显微镜观察断裂形态的进一步支持。 （c）2015 Wiley Periodicals，Inc. J. Appl。 Polym。科学2015，132，42199。

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