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首页> 美国卫生研究院文献>Materials >Effect of Hybrid Talc-Basalt Fillers in the Shell Layer on Thermal and Mechanical Performance of Co-Extruded Wood Plastic Composites
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Effect of Hybrid Talc-Basalt Fillers in the Shell Layer on Thermal and Mechanical Performance of Co-Extruded Wood Plastic Composites

机译：壳层混合滑石-玄武岩填料对共挤木塑复合材料热力学性能的影响

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摘要

Hybrid basalt fiber (BF) and Talc filled high density polyethylene (HDPE) and co-extruded wood-plastic composites (WPCs) with different BF/Talc/HDPE composition levels in the shell were prepared and their mechanical, morphological and thermal properties were characterized. Incorporating BFs into the HDPE-Talc composite substantially enhanced the thermal expansion property, flexural, tensile and dynamic modulus without causing a significant decrease in the tensile and impact strength of the composites. Strain energy estimation suggested positive and better interfacial interactions of HDPE with BFs than that with talc. The co-extruded structure design improved the mechanical properties of WPC due to the protective shell layer. The composite flexural and impact strength properties increased, and the thermal expansion decreased as BF content increased in the hybrid BF/Talc filled shells. The cone calorimetry data demonstrated that flame resistance of co-extruded WPCs was improved with the use of combined fillers in the shell layer, especially with increased loading of BFs. The combined shell filler system with BFs and Talc could offer a balance between cost and performance for co-extruded WPCs.
机译：制备了混合玄武岩纤维（BF）和滑石填充的高密度聚乙烯（HDPE）以及壳中具有不同BF / Talc / HDPE组成水平的共挤出木塑复合材料（WPC），并对其机械，形态和热性能进行了表征。将BFs掺入HDPE-滑石复合材料中可显着提高热膨胀性能，弯曲，拉伸和动态模量，而不会导致复合材料的拉伸和冲击强度显着降低。应变能估计表明高密度聚乙烯与高炉的界面相互作用比滑石具有更好的界面相互作用。共挤结构设计由于保护壳层而提高了WPC的机械性能。随着BF /滑石混合壳中BF含量的增加，复合材料的弯曲和冲击强度性能提高，热膨胀降低。锥形量热法数据表明，在壳层中使用混合填料可改善共挤出WPC的阻燃性，特别是增加了BF的负载量。具有高炉和滑石粉的组合式外壳填充系统可以在共挤出WPC的成本和性能之间达到平衡。

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