Plasticizing Properties Improvement of Poly (4-Vinylpyridine)/Clay Composites: Effect of Composition and Clay Nature

IF 1 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY Advances in Materials Science Pub Date : 2021-09-01 DOI:10.2478/adms-2021-0014

F. Dergal, D. Lerari, K. Bacharı

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引用次数: 1

Abstract

Abstract A significant number of investigations have been reported on the elaboration and characterization of Polymer/Clays composites, via different methods. In our work, new composites materials were successfully prepared by in-situ polymerization of 4-vinylpyridine (4VP), in presence of two different types of Algerian modified clays (Maghnia and Mostaganem), noted (BC) and (MC), respectively. Different percentage clays (1 wt%, 3 wt% and 5 wt%) have been used. The differential scanning calorimetry analysis reveals the variation of glass transition temperature (Tg) of the copolymer in the composite materials. We show a decrease glass transition temperature (Tg) from 147°C to 131°C for P4VP-BC and from 147°C to 124°C for P4VP-MC according to the increase percentage of clays. Thermogravimetric analysis (TGA) shows good stability of composite materials at high temperature. Fourier Transformed Infrared (FTIR), Scanning Electron Microscopy coupled with Energy dispersive X-Ray Spectroscopy (SEM-EDX) and 1H NMR spectroscopy are used to show the presence of the clays in the materials.

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聚(4-乙烯基吡啶)/粘土复合材料塑化性能的改善:组分和粘土性质的影响

摘要通过不同的方法对聚合物/粘土复合材料的制备和表征进行了大量的研究。在我们的工作中，通过原位聚合4-乙烯基吡啶(4VP)，成功地制备了两种不同类型的阿尔及利亚改性粘土(Maghnia和Mostaganem)，分别标记为(BC)和(MC)。使用了不同比例的粘土(1wt %， 3wt %和5wt %)。差示扫描量热分析揭示了复合材料中共聚物的玻璃化转变温度(Tg)的变化。我们发现，根据粘土的增加百分比，P4VP-BC的玻璃化转变温度(Tg)从147°C降至131°C, P4VP-MC的玻璃化转变温度从147°C降至124°C。热重分析(TGA)表明复合材料在高温下具有良好的稳定性。利用傅里叶变换红外(FTIR)、扫描电子显微镜、能量色散x射线能谱(SEM-EDX)和1H核磁共振光谱(1H NMR)显示了粘土在材料中的存在。

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Advances in Materials Science MATERIALS SCIENCE, MULTIDISCIPLINARY-

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