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首页> 外文期刊>Journal of Applied Polymer Science >Performance characterization of comvosite materials based on recycled high-density polyethylene and ground tire rubber reinforced with short glass fibers for structural applications
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Performance characterization of comvosite materials based on recycled high-density polyethylene and ground tire rubber reinforced with short glass fibers for structural applications

机译：基于再生高密度聚乙烯和短玻璃纤维增​​强的磨碎轮胎橡胶的复合材料的性能表征，用于结构应用

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摘要

This study addresses the issue of using recycled materials to obtain low-cost structural products for practical applications. Through the use and re-extrusion of virgin high-density polyethylene (HDPE), the effects of the degradation level of HDPE as a matrix phase on its mechanical properties and the mechanical performance of composites produced with the degraded polyethylene have been examined. The degradation level of HDPE caused by reextrusion has been evaluated by the measurement of the melt flow index and mechanical properties of virgin and degraded HDPEs. The results indicate that the modulus and strength of HDPE significantly increase with the addition of polypropylene filled with 30 wt % glass fiber [PP-GF(30)] without any other compatibilizer. However, the final properties of composites with specified glass-fiber contents are dependent on the degradation level of the matrix phase. In addition, the role of ground tire rubber (GTR) in HDPE/PP-GF(30) systems has been examined by the preparation of composites with various GTR contents without any treatments. The results show that the presence of GTR in the final product results in lower stiffness because of its role as a soft filler, but the elongation of the product increases slightly. Furthermore, GTR does not produce any improvement in the impact properties, probably because of the low interfacial adhesion with the matrix phase; therefore, its content should be kept low in the final composition. (c) 2006 Wiley Periodicals, Inc.
机译：这项研究解决了使用再生材料来获得用于实际应用的低成本结构产品的问题。通过使用和重新挤压原始的高密度聚乙烯（HDPE），已经研究了HDPE作为基质相的降解水平对其机械性能和由降解的聚乙烯生产的复合材料的机械性能的影响。通过测量原始和降解HDPE的熔体流动指数和机械性能，可以评估由再挤出引起的HDPE降解水平。结果表明，在不添加任何其他增容剂的情况下，添加填充有30 wt％玻璃纤维[PP-GF（30）]的聚丙烯，HDPE的模量和强度会显着提高。但是，具有指定玻璃纤维含量的复合材料的最终性能取决于基体相的降解水平。此外，通过制备未经处理的各种GTR含量的复合材料，已经检验了HDPE / PP-GF（30）系统中的地面轮胎橡胶（GTR）的作用。结果表明，最终产品中GTR的存在由于其作为软填料的作用而导致刚度降低，但产品的伸长率略有增加。此外，GTR不会对冲击性能产生任何改善，这可能是由于与基体相的界面粘合力较低;因此，其含量应在最终组成中保持较低。 （c）2006年Wiley Periodicals，Inc.

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