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Correlation between thermomechanical behavior and density of UHMWPE (Ultra-High Molecular Weight PolyEthylene) reinforcements embedded in self-reinforced composites, following a parametric study of the process used
Journal of Polymer Research ( IF 2.8 ) Pub Date : 2021-08-31 , DOI: 10.1007/s10965-021-02698-5
Coline Roiron 1, 2 , Eric Lainé 1 , Jean-Claude Grandidier 1 , Nicolas Garois 3 , Cathie Vix-Guterl 2
Affiliation  

Self-reinforced polymers (SRPs) show many advantages such as greater ductility, lightness, and recyclability compared to glass or carbon fiber-reinforced composites. A process from pellets to produce Self-reinforced PolyEthylene (SRPE) composites reinforced with continuous polyethylene Doyentrontex® yarns is proposed. The architecture of the reinforcement or defects in the composite can mask the effects of the process. The study then focuses on specimens reinforced between 1 and 12 yarns. The influence of process parameters on the thermomechanical behavior of SRPE and the neat PolyEthylene (PE) is investigated through tensile tests conducted at 23 and 60 °C. An optimal combination is sought to be able to consider future structural applications. The influence of the amount of reinforcement on the thermomechanical properties of SRPE has also been studied for the same process conditions. The tangent modulus and the maximum strength are the parameters most affected by the reinforcement density. The importance of yarns’ layout is also emphasized.



中文翻译:

在对所用工艺进行参数研究后,嵌入自增强复合材料中的 UHMWPE(超高分子量聚乙烯)增强材料的热机械行为与密度之间的相关性

与玻璃或碳纤维增强复合材料相比,自增强聚合物 (SRP) 显示出许多优点,例如更大的延展性、轻便性和可回收性。提出了一种从颗粒生产用连续聚乙烯 Doyentrontex® 纱线增强的自增强聚乙烯 (SRPE) 复合材料的工艺。复合材料中的加固结构或缺陷可以掩盖该过程的影响。然后,该研究集中在 1 到 12 根纱线之间增强的试样。通过在 23 和 60 °C 下进行的拉伸试验,研究了工艺参数对 SRPE 和纯聚乙烯 (PE) 热机械行为的影响。寻求最佳组合以能够考虑未来的结构应用。在相同的工艺条件下,还研究了增强量对 SRPE 热机械性能的影响。切线模量和最大强度是受钢筋密度影响最大的参数。还强调了纱线布局的重要性。

更新日期:2021-09-01
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