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首页> 外文期刊>RSC Advances >Chlorinated polyethylene (CPE)/ethylene methacrylate copolymer (EMA)/sepiolite nanocomposite via a facile one-step covalent modification technique
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Chlorinated polyethylene (CPE)/ethylene methacrylate copolymer (EMA)/sepiolite nanocomposite via a facile one-step covalent modification technique

机译：氯化聚乙烯（CPE）/乙烯甲基丙烯酸乙烯共聚物（EMA）/海硫醇酯纳米复合材料通过易于一步的一步共价修饰技术

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摘要

The work reports a facile one step covalent modification technique of sepiolite needles by in situ polymerization of 3-caprolactone. The effective modification of sepiolite was confirmed by Fourier transform infrared (FTIR), X-ray diffraction (XRD), High Resolution-Transmission Electron Microscopy (HR-TEM) and water contact angle measurements. Nanocomposites of chlorinated polyethylene (CPE)/ethylene methacrylate copolymer (EMA) blend (60/40 ratio) were prepared by melt mixing the polymer blend with the pristine and poly(3-caprolactone) modified sepiolite (PCL-g-SP). For the ease of comparison, equal filler content in both the nanocomposites was maintained (5 wt%). The effect of modified sepiolite on the mechanical and thermal properties of CPE/EMA blend of 60/40 ratio was precisely studied by ultimate tensile testing, dynamic mechanical analysis (DMA) and thermogravimetric analysis (TGA). The modified sepiolite based nanocomposite showed a considerable improvement of 47.77% in ultimate tensile strength over the neat blend. Besides, a high char yield content of both the nanocomposites, increments of 38.4% and 39.6% in the initial degradation temperature (T-i) values of pristine and modified sepiolite based nanocomposites respectively were observed compared to the neat blend system.
机译：该工作通过3-己内酯的原位聚合报告了Sepiolite针的易于一步的一步共价修饰技术。通过傅里叶变换红外（FTIR），X射线衍射（XRD），高分辨率透射电子显微镜（HR-TEM）和水接触角测量来确认Sepiolite的有效修饰。通过将聚合物共混物与原始和聚（3-己内酯）改性的海泡石（PCL-G-SP）熔融混合来制备氯化聚乙烯（CPE）/乙烯甲酸酯共聚物（EMA）共混物（EMA）共混物（60/40比）。为了易于比较，维持纳米复合材料中的等于填料含量（5wt％）。通过极限拉伸试验，动态力学分析（DMA）和热重分析（TGA），改性海泡石对CPE / EMA混合物的机械和热性能对60/40比率的机械和热性能。改性的海泡石基纳米复合材料在整个混合物上呈极限拉伸强度显示相当大的47.77％。此外，与整齐的共混物系统相比，分别观察到纳米复合材料的高炭产含量，纳米复合材料的初始降解温度（T-I）的初始降解温度（T-I）值的增量和39.6％的39.6％。

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  • 来源
    《RSC Advances》 |2015年第74期|共13页
  • 作者

    Bhagabati Purabi; Chaki Tapan K.; Khastgir Dipak;

  • 作者单位

    Indian Inst Technol Ctr Rubber Technol Kharagpur 721302 W Bengal India;

    Indian Inst Technol Ctr Rubber Technol Kharagpur 721302 W Bengal India;

    Indian Inst Technol Ctr Rubber Technol Kharagpur 721302 W Bengal India;

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  • 正文语种 eng
  • 中图分类 化学;
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