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首页> 外文期刊>Polymers for advanced technologies >Structure, morphology, and properties of LDPE/sepiolite nanofiber nanocomposite
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Structure, morphology, and properties of LDPE/sepiolite nanofiber nanocomposite

机译：LDPE / Sepiolite纳米纤维纳米复合材料的结构，形态和性能

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摘要

Sepiolite (SEP) nanofibers have been modified by grafting with poly(pentaerythritol diphosphonate dichloride-hexamethylendiamine) (PSPHD) and compounded with low density polyethylene (LDPE) to form a nanocomposite. The various modified SEPs were characterized by X-ray photoelectron spectroscopy, Fourier transform infrared, transmission electron microscopy (TEM), and thermogravimetric analysis. The Fourier transform infrared and X-ray photoelectron spectroscopy tests show that covalent bonding exists between SEP fiber and modifiers. The nanoscale size and morphologies of SEP fiber and modified SEP nanofibers can be observed clearly by TEM. The thermogravimetric analysis results reveal that the multi-step thermal degradation process of SEP fiber is changed by grafting modification. The various LDPE/SEP nanocomposites were characterized by scanning electron micrograph, TEM, dynamic mechanical analysis, and tensile test. The results suggest that a good interfacial modification effect has been obtained between PSPHD-SEP and LDPE matrix. A particular improvement in tensile strength is reflected in tensile tests. Dynamic mechanical analysis shows that the storage moduli (E') of PSPHD-SEP/LDPE nanocomposites are much higher than that of neat LDPE and a-SEP/LDPE systems. Copyright (c) 2015 John Wiley & Sons, Ltd.
机译：通过用聚（季戊四醇二膦酸二氯化二氯化物 - 六甲基亚甲基甲基亚甲基甲基甲基甲基溴胺（PSPHD）嫁接并用低密度聚乙烯（LDPE）复合以形成纳米复合材料，以改变海泡石（SEP）纳米纤维素。各种修饰的SEPS以X射线光电子能谱，傅里叶变换红外，透射电子显微镜（TEM）和热重分析为特征。傅里叶变换红外和X射线光电子能谱试验表明，在SEP纤维和改性剂之间存在共价键。通过TEM清楚地观察SEP纤维和改性SEP纳米纤维的纳米级尺寸和形态。热重分析结果表明，通过移植修改改变了SEP纤维的多步热降解过程。通过扫描电子显微照片，TEM，动态机械分析和拉伸试验表征各种LDPE / SEP纳米复合材料。结果表明，PSPHD-SEP和LDPE矩阵之间已经获得了良好的界面改性效果。拉伸强度的特定改善反映在拉伸试验中。动态力学分析表明，PSPHD-SEP / LDPE纳米复合材料的储存模量（e'）远高于整齐的LDPE和A-SEP / LDPE系统。版权所有（c）2015 John Wiley＆Sons，Ltd。

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