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首页> 外文期刊>Journal of Applied Polymer Science >Effect of solid-state shear milling on structure and properties of HDPE/UHMWPE blends
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Effect of solid-state shear milling on structure and properties of HDPE/UHMWPE blends

机译：固态剪切铣削对HDPE / UHMWPE共混物结构和性能的影响

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摘要

The structure and properties of HDPE/UHMWPE blends prepared through a pan-milling reactor in solid state at ambient temperature were compared with the blends made by melt mixing. The changes of structure and properties of the blends were investigated by FTIR, melt flow index, mechanical properties, dynamic rheological measurement, DSC, and WAXD. DSC measurement illustrated that after pan-milling treatment, the half-width of the melting temperature became smaller. The more content of UHMWPE added in the blend, the more evident change was observed. Combined with the dynamic rheological analysis, it was proved that, the pan-milling treatment can improve the compatibility of the HDPE/UHMWPE blends. X-ray diffraction analysis showed that after pan-milling treatment some ordered structure could be induced, but after heat treatment, the induced crystalline structure disappeared. The tensile properties of pan-milled HDPE/UHMWPE blends also achieved improvement after pan milling treatment.
机译：通过盘磨反应器在室温下以固态制备的HDPE / UHMWPE共混物的结构和性能与通过熔融混合制得的共混物进行了比较。通过FTIR，熔体流动指数，力学性能，动态流变测量，DSC和WAXD研究了共混物的结构和性能变化。 DSC测量表明，在碾磨处理之后，熔化温度的半峰变小。在混合物中添加的UHMWPE含量越多，观察到的变化越明显。结合动态流变学分析，证明了碾磨处理可以改善HDPE / UHMWPE共混物的相容性。 X射线衍射分析表明，经碾磨处理后可以诱导出一些有序的结构，但是经过热处理后，诱导的晶体结构消失了。盘磨HDPE / UHMWPE共混物的拉伸性能在盘磨处理后也得到了改善。

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