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首页> 外文期刊>RSC Advances >Improved adhesion properties of poly-p- phenyleneterephthamide fibers with a rubber matrix via UV-initiated grafting modification
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Improved adhesion properties of poly-p- phenyleneterephthamide fibers with a rubber matrix via UV-initiated grafting modification

机译：通过UV引发的接枝改性，改善了用橡胶基质的聚对苯二酰胺纤维的粘附性能

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摘要

In this research, ultraviolet (UV) irradiation induced graft polymerization of glycidyl methacrylate (GMA) was performed to modify the surface properties of poly-p-phenyleneterephthamide (PPTA) fibers. The improvement of adhesion with a rubber matrix was achieved due to the introduction of epoxy groups. The successful grafting of GMA on the PPTA fiber surface was ascertained by characterization using X- ray photoelectron spectroscopy (XPS), attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR), and scanning electron microscopy (SEM). The tensile properties of PPTA fibers after each stage of surface modification were determined by tensile testing of single-filaments. A single- fiber pull-out test was applied to evaluate the adhesion of PPTA fibers with the rubber matrix. The pull- out force of grafted PPTA fibers exceeded that of the pristine fibers by 53.7%. Resorcinol- formaldehyde-latex (RFL) dipping was applied to further improve the adhesion properties. As a result, the fibers with GMA grafting followed by RFL dipping exhibited a 80.8% improvement compared with the pristine fibers and achieved much higher adhesion strength with rubber matrix, compared to the PPTA fibers modified with conventional industrial method of isocyanate (NCO) and RFL two bath dipping.
机译：在本研究中，进行紫外线（UV）照射诱导的接枝聚合甲基丙烯酸缩水甘油酯（GMA）来修改聚对phenyleneterephthamide（PPTA）纤维的表面特性。由于环氧基团引入，实现了与橡胶基质的粘合性的改善。通过使用X射线光电子光谱（XPS）来表征通过表征来确定GMA对PPTA纤维表面的成功接枝，衰减总反射率傅里叶变换红外光谱（ATR-FTIR）和扫描电子显微镜（SEM）。通过单丝的拉伸试验确定了PPTA纤维的拉伸性能。施用单纤维拉出试验以评价PPTA纤维与橡胶基质的粘附。接枝PPTA纤维的拔出力超过了原始纤维的53.7％。浸渍间体甲醛 - 甲醛胶乳（RFL）浸渍以进一步改善粘合性能。结果，与原始纤维相比，RFL浸渍的具有GMA接枝的纤维随后具有80.8％的改善，与用异氰酸酯（NCO）和RFL的常规工业方法改性的PPTA纤维相比，用橡胶基质实现了更高的粘合强度两个浴浸。

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  • 来源
    《RSC Advances》 |2015年第114期|共10页
  • 作者

    Rina Sa; Yan Yan; Lei Wang;

  • 作者单位

    State Key Laboratory of Organic Inorganic Composites Beijing 100029 China.;

    State Key Laboratory of Organic Inorganic Composites Beijing 100029 China.;

    State Key Laboratory of Organic Inorganic Composites Beijing 100029 China.;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
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