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首页> 外文期刊>Journal of Applied Polymer Science >Effects of polyethylene-grafted maleic anhydride (PE-gMA) on thermal properties, morphology, and tensile properties of low-density polyethylene (LDPE) and corn starch blends
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Effects of polyethylene-grafted maleic anhydride (PE-gMA) on thermal properties, morphology, and tensile properties of low-density polyethylene (LDPE) and corn starch blends

机译：聚乙烯接枝的马来酸酐（PE-gMA）对低密度聚乙烯（LDPE）和玉米淀粉共混物的热性能，形态和拉伸性能的影响

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摘要

The effects of polyethylene-grafted maleic anhydride (PE-g-MA) on the thermal properties, morphology, and tensile properties of blends of low-density polyethylene (LDPE) and corn starch were studied with a differential scanning calorimeter (DSC), scanning electron microscope (SEM), and Instron Universal Testing Machine, respectively. Corn starch-LDPE blends with different starch content and with or without the addition of PE-g-MA were prepared with a lab-scale twin-screw extruder. The crystallization temperature of LDPE-corn starch-PE-g-MA blends was similar to that of pure LDPE but higher than that of LDPE-corn starch blends. The interfacial properties between corn starch and LDPE were improved after PE-g-MA addition, as evidenced by the structure morphology revealed by SEM. The tensile strength and elongation at break of corn starch-LDPE-PE-g-MA blends were greater than those of LDPE-com starch blends, and their differences became more pronounced at higher starch contents. (C) 2003 Wiley Periodicals, Inc. [References: 28]
机译：用差示扫描量热仪（DSC）研究了聚乙烯接枝的马来酸酐（PE-g-MA）对低密度聚乙烯（LDPE）和玉米淀粉共混物的热性能，形态和拉伸性能的影响。电子显微镜（SEM）和Instron万能测试机。用实验室规模的双螺杆挤出机制备具有不同淀粉含量并且具有或不具有PE-g-MA的玉米淀粉-LDPE共混物。 LDPE-玉米淀粉-PE-g-MA共混物的结晶温度类似于纯LDPE，但高于LDPE-玉米淀粉共混物的结晶温度。 PE-g-MA加入后，玉米淀粉与LDPE的界面性能得到改善，这是由SEM观察到的结构形态所证明的。玉米淀粉-LDPE-PE-g-MA共混物的拉伸强度和断裂伸长率大于LDPE-com淀粉共混物的拉伸强度和断裂伸长率，并且在较高淀粉含量下它们的差异变得更加明显。 （C）2003 Wiley Periodicals，Inc. [参考：28]

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