首页> 外文期刊>Journal of Applied Polymer Science >SIMULTANEOUS FREE RADICAL POLYMERIZATION AND ACIDIC POLYCONDENSATION OF ACRYLAMIDE-FORMALDEHYDE RESIN ON JUTE FABRIC
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SIMULTANEOUS FREE RADICAL POLYMERIZATION AND ACIDIC POLYCONDENSATION OF ACRYLAMIDE-FORMALDEHYDE RESIN ON JUTE FABRIC

机译:黄麻纤维上丙烯酰胺-甲醛树脂的同时自由基聚合和酸缩聚

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Acid catalyzed grafting, polycondensation, and crosslinking of acrylamide-formaldehyde (AMF) resin and simultaneous free radical graft copolymerization of the resin moieties on jute fabric were studied using a combination of MgCl2 and K2S2O8, respectively, as the (dual) catalyst system. Resin application and finish on jute fabric were accomplished by padding at room temperature, drying at 80 degrees C, and polymerization and curing at 150 degrees C. Changes in chemical structure and surface morphology of jute fiber on resin treatment were examined by Fourier transform infrared (FT-IR) spectroscopy and scanning electron microscopy (SEM), respectively. Application of 8% AMF resin under the dual catalyst system in appropriate doses produced the most improved balance in the properties of jute fabric, including tenacity, modulus, breaking extension, stiffness, crease recovery angle, fiber shedding, moisture regain, and dyeability. Analysis indicated that all the major constituents of jute, namely, alpha-cellulose, hemicellulose, and lignin reacted with the AMF resin system and that the resin finish turned jute thermally more stable. Effects of different degrees of removal of lignin and hemicellulose from jute on its AMF resin uptake were also studied and reported. (C) 1997 John Wiley & Sons, Inc. [References: 43]
机译:分别使用MgCl2和K2S2O8作为(双)催化剂体系,研究了酸催化的丙烯酰胺-甲醛(AMF)树脂的接枝,缩聚和交联以及树脂部分在黄麻织物上的同时自由基接枝共聚。通过在室温下浸轧,在80°C下干燥,在150°C下聚合和固化来完成在黄麻织物上的树脂涂覆和整理。通过傅里叶变换红外光谱( FT-IR光谱和扫描电子显微镜(SEM)。在双催化剂体系下以适当的剂量使用8%AMF树脂可在黄麻织物的性能(包括强度,模量,断裂伸长率,刚度,折皱回复角,纤维脱落,回潮和染色性)方面获得最改善的平衡。分析表明,黄麻的所有主要成分,即α-纤维素,半纤维素和木质素均与AMF树脂体系反应,并且树脂整理剂使黄麻的热稳定性更高。还研究并报道了不同程度的从黄麻中去除木质素和半纤维素对其AMF树脂吸收的影响。 (C)1997 John Wiley&Sons,Inc. [参考:43]

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