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首页> 外文期刊>Journal of Vinyl & Additive Technology >Properties and characterization of ([Mengkuang leaf fiber]-filled ethylene vinyl acetate)/(natural rubber) blend: Effects of blending sequences and mengkuang leaf fiber loading
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Properties and characterization of ([Mengkuang leaf fiber]-filled ethylene vinyl acetate)/(natural rubber) blend: Effects of blending sequences and mengkuang leaf fiber loading

机译：（[Mengkuang Leaf Leaver]填充乙烯乙烯酯）/（天然橡胶）混合物的性质和表征：混合序列和蒙嘉叶纤维荷载作用

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摘要

(Ethylene vinyl acetate [EVA])/(natural rubber [NR])/(Mengkuang leaf fiber) (MLF) thermoplastic elastomer composites were prepared by using three different blending sequences in an internal mixer. The blending sequences studied were (i) B1: NR was added followed by MLF into the molten EVA; (ii) B2: MLF was added followed by NR into the molten EVA; (iii) B3: MLF was added followed by EVA into the molten NR. The effect of different blending sequences and fiber loadings from 10 to 40 parts by weight per hundred parts of resin on the torque development, tensile properties, thermal degradation, and morphology of EVA/NR/MLF composites was studied. Of the blending sequences investigated, the B1 system is considered the best method for the preparation of EVA/NR/MLF composites. The B1 system produces composites with lower stabilization torque, higher tensile strength, and better thermal stability compared with other systems. At 40 parts by weight per hundred parts of resin of MLF loading, the tensile strength of the composite prepared by using the B1 system was 15% higher than that of B2 system composites, and 8% higher than that of the B3 system. Scanning electron micrographs of the tensile fracture surfaces indicated this system also had good fiber dispersion in the EVA/NR matrix. An increase in MLF loading resulted in an increase of the values of the stabilization torque and the Young's modulus, but a decrease in values of the tensile strength, the elongation at break, and the thermal stability of the composites. Scanning electron microscopy revealed increased fiber pullout in the composites as the loading increased. J. VINYL ADDIT. TECHNOL., 24:109-115, 2018. (c) 2016 Society of Plastics Engineers
机译：（乙烯乙酸乙烯酯[EVA]）/（天然橡胶[NR]）/（Mengkuang叶片纤维）（MLF）通过在内部混合器中使用三种不同的混合序列来制备热塑性弹性体复合材料。研究的混合序列是（i）B1：NR，然后加入MLF进入熔融EVA; （ii）B2：加入MLF，然后加入NR进入熔融EVA; （III）B3：加入MLF，然后加入熔融NR。研究了不同共混序列和纤维载荷从10至40重量份的抗扭矩显影，拉伸性能，热降解和EVA / NR / MLF复合材料的形态的影响。在研究的混合序列中，B1系统被认为是制备EVA / NR / MLF复合材料的最佳方法。与其他系统相比，B1系统产生具有较低稳定扭矩，较高的拉伸强度和更好的热稳定性的复合材料。在40重量份的每份40重量份的MLF负载下，通过使用B1系统制备的复合材料的拉伸强度高于B2系统复合材料的15％，高于B3系统的8％。扫描电子显微照片的拉伸骨折表面表明该系统在EVA / NR基质中也具有良好的纤维分散体。 MLF负荷的增加导致稳定扭矩和杨氏模量的值的增加，但是拉伸强度的值减小，断裂伸长率和复合材料的热稳定性。扫描电子显微镜显示复合材料中的纤维拉伸增加，因为负载增加。 J.乙烯基添加剂。 Technol.，24：109-115,2018。（c）2016年塑料工程师协会

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