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首页> 外文期刊>Journal of Applied Polymer Science >Mechanical properties of flame retardant filled polypropylene composites
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Mechanical properties of flame retardant filled polypropylene composites

机译：阻燃填充聚丙烯复合材料的机械性能

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摘要

The flammability performance and mechanical behaviors for halogen-based and non-halogen-based flame retardant (FR) filled polypropylene (PP) composites were investigated in this study. The halogen-based FR system consisted of a mixture of brominated phosphate ester and antimony trioxide (BR), and the halogen-free FR was a magnesium hydroxide (MH). It was found from limiting oxygen index measurements that 60 wt % of MH was needed in order to achieve the same degree of flammability as the composite containing only 30 wt % of BR. Scanning electron microscopy examina-tions of the fractured specimens indicated that the interfacial bond strength between PP and MR was stronger than that for PP and BR. The notched Charpy impact strength and the impact fracture toughness were measured and compared. The discrepancies between the two impact test results could be correlated after kinetic energy correction was applied to the Charpy impact strengths.
机译：在本研究中，研究了卤素基和非卤素基阻燃剂（FR）填充的聚丙烯（PP）复合材料的可燃性和机械性能。卤素基FR体系由溴化磷酸酯和三氧化锑（BR）的混合物组成，无卤FR是氢氧化镁（MH）。从极限氧指数测量中发现，为了获得与仅包含30wt％的BR的复合物相同程度的可燃性，需要60wt％的MH。断裂试样的扫描电子显微镜检查表明，PP和MR之间的界面结合强度强于PP和BR。测量并比较了缺口夏比冲击强度和冲击断裂韧性。将动能校正应用于夏比冲击强度后，可以将两个冲击测试结果之间的差异关联起来。

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