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首页> 外文期刊>Journal of Applied Polymer Science >SHORT SISAL FIBER REINFORCED STYRENE-BUTADIENE RUBBER COMPOSITES
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SHORT SISAL FIBER REINFORCED STYRENE-BUTADIENE RUBBER COMPOSITES

机译：短剑麻纤维增强的苯乙烯-丁二烯橡胶复合材料

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Styrene-butadiene rubber (SBR) composites were prepared by incorporating short sisal fibers of different lengths and concentrations into the SBR matrix in a mixing mill according to a base formulation. The curing characteristics of the mixes were studied and the samples were vulcanized at 150 degrees C. The properties of the vulcanizates such as stress-strain behavior, tensile strength, modulus, shore-A hardness, and resilience were studied. Both the cured and uncured properties showed a remarkable anisotropy. It has been found that aspect ratio in the range of 20-60 is effective for sufficient reinforcement. The mechanical properties were found to increase along and across the grain direction with the addition of fibers. The effects of fiber length, orientation, loading, type of bonding agent, and fiber-matrix interaction on the properties of the composites were evaluated. The extent of fiber orientation was estimated from green strength measurements. The adhesion between the fiber and the rubber was enhanced by the addition of a dry bonding system consisting of resorcinol and hexamethylene tetramine. The bonding agent provided shorter curing time and enhanced mechanical properties. The tensile fracture surfaces of the samples have been examined by scanning electron microscopy (SEM) to analyze the fiber surface morphology, orientation, fiber pull-out, and fiber-matrix interfacial adhesion. Finally, anisotropic swelling studies were carried out to analyze the fiber-matrix interaction and fiber orientation. (C) 1995 John Wiley & Sons, Inc. [References: 47]
机译：苯乙烯-丁二烯橡胶（SBR）复合材料是根据基础配方，在混合机中将不同长度和浓度的短剑麻纤维掺入到SBR基体中制备的。研究了混合物的固化特性，并在150摄氏度下对样品进行了硫化。研究了硫化产品的性能，如应力-应变行为，拉伸强度，模量，肖氏A硬度和回弹性。固化和未固化的性质均显示出显着的各向异性。已经发现，纵横比在20-60范围内对于有效的增强是有效的。发现随着纤维的添加，机械性能沿晶粒方向和整个晶粒方向增加。评估了纤维长度，取向，载荷，粘合剂类型和纤维-基质相互作用对复合材料性能的影响。纤维取向的程度由未加工强度测量值估计。通过添加由间苯二酚和六亚甲基四胺组成的干式粘合体系，可增强纤维与橡胶之间的粘合力。粘合剂可缩短固化时间并提高机械性能。样品的拉伸断裂表面已通过扫描电子显微镜（SEM）进行了检查，以分析纤维表面形态，取向，纤维拉出和纤维-基质界面粘合力。最后，进行各向异性溶胀研究以分析纤维-基质相互作用和纤维取向。 （C）1995 John Wiley＆Sons，Inc. [参考：47]

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