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首页> 外文期刊>Journal of Applied Polymer Science >Optimal Formulation of Rice Husk Reinforced Polyethylene Composites for Mechanical Performance: A Mixture Design Approach
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Optimal Formulation of Rice Husk Reinforced Polyethylene Composites for Mechanical Performance: A Mixture Design Approach

机译：稻壳增强聚乙烯复合材料机械性能的最佳配方：混合设计方法

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摘要

Rice husk (RH) and linear medium density polyethylene (LMDPE) were used along with maleic anhydride grafted polyethylene (MAPE) to study the effects of component composition on the mechanical properties of the composites. Ten different blends along with four replicated blends were prepared with different selected percentages of RH, MAPE and LMDPE using mixture design approach. Trace and contour plots were used to examine the effects of RH, MAPE and LMDPE on the mechanical properties of the manufactured composites. Regression coefficients were also estimated for each fitted response (mechanical property). The results show that tensile and flexural properties of the composites improved with an increase in amount of RH, whereas Charpy impact strength decreased with increasing fibre loading. Tensile strength, flexural strength and Charpy impact strength increased with an increase in MAPE loading up to a certain percentage of MAPE, beyond which any further increase decreased these properties. The effect of MAPE on tensile and flexural modulus was not significant. The fitted models were used to optimise formulation of RH, MAPE and LMDPE for multiple responses for overall "best" mechanical properties. The optimal formulation for the overall "best" mechanical properties were found to be 50 wt% for RH, 4.1 wt% for MAPE and 45.9 wt% for LMDPE. The mechanical properties of the composite manufactured with this formulation closely matched the values predicted by the models.
机译：稻壳（RH）和线性中密度聚乙烯（LMDPE）与马来酸酐接枝聚乙烯（MAPE）一起用于研究组分组成对复合材料力学性能的影响。使用混合物设计方法，用不同选择百分比的RH，MAPE和LMDPE制备了十种不同的混合物以及四种重复的混合物。迹线图和轮廓图用于检查RH，MAPE和LMDPE对制成的复合材料的机械性能的影响。还针对每个拟合的响应（机械特性）估计了回归系数。结果表明，复合材料的拉伸和弯曲性能随RH量的增加而改善，而夏比冲击强度随纤维含量的增加而降低。拉伸强度，挠曲强度和夏比冲击强度随着MAPE负载的增加而增加，直至达到一定比例的MAPE，超过此百分比，则这些性能进一步降低。 MAPE对拉伸和弯曲模量的影响不明显。拟合模型用于优化RH，MAPE和LMDPE的配方，以针对整体“最佳”机械性能产生多重响应。发现总体“最佳”机械性能的最佳配方为RH为50 wt％，MAPE为4.1 wt％，LMDPE为45.9 wt％。用这种配方制造的复合材料的机械性能与模型预测的值非常匹配。

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