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首页> 外文期刊>Journal of Applied Polymer Science >Tire rubber-sisal composites: Effect of mercerization and acetylation on reinforcement
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Tire rubber-sisal composites: Effect of mercerization and acetylation on reinforcement

机译：轮胎橡胶-剑麻复合材料：丝光和乙酰化对增强的影响

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Tire rubber particles were mixed randomly with short sisal fibers and hot pressed. Sisal fibers were used as received, mercerized, and mercerized/acetylated. The fibers were characterized by scanning electron microscopy (SEM), thermal gravimetry analysis (TGA), infrared spectroscopy (FTIR), water sorption, and mechanical properties. Thermal stability of the mercerized/acetylated fibers improves (from 200 to 300degreesC) with respect to the raw fibers, and water sorption is similar to20% smaller than for the raw and the mercerized fibers. Tensile strength is unchanged after the chemical treatments. Water sorption, mechanical properties, and SEM evaluated the performance of the tire rubber composites. All composites showed enhanced elastic modulus; increase is dependent on fiber load. Smallest water sorption was obtained in composites with the mercerized/acetylated fibers. With these fibers at 10% load, the best results were obtained with the smaller tire rubber particles (320 mum) and at 5% load with the bigger (740 mum) tire rubber particles. Both composites showed similar to50% increase in tensile strength when compared to similar composites with raw fibers. SEM of the surface of fracture showed that the adhesion between fiber and rubber was enhanced after both chemical treatments. (C) 2003 Wiley Periodicals, Inc. [References: 33]
机译：将轮胎橡胶颗粒与短剑麻纤维随机混合并热压。剑麻纤维按原样使用，丝光处理和丝光处理/乙酰化。通过扫描电子显微镜（SEM），热重分析（TGA），红外光谱（FTIR），吸水率和机械性能对纤维进行表征。相对于原纤维，丝光/乙酰化纤维的热稳定性得以改善（从200至300℃），吸水率比原纤维和丝光纤维小20％。化学处理后的拉伸强度没有变化。吸水率，机械性能和SEM评估了轮胎橡胶复合材料的性能。所有复合材料均显示出增强的弹性模量。增加取决于光纤负载。在带有丝光/乙酰化纤维的复合材料中，吸水率最小。这些纤维在10％的载荷下，较小的轮胎橡胶颗粒（320微米）可获得最佳效果，而在5％的载荷下，较大的轮胎橡胶颗粒（740微米）可获得最佳效果。与具有原始纤维的类似复合材料相比，两种复合材料的拉伸强度均提高了近50％。断裂表面的SEM表明，经过两种化学处理后，纤维和橡胶之间的粘合性均得到增强。 （C）2003 Wiley Periodicals，Inc. [参考：33]

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