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首页> 外文期刊>Applied Surface Science >Graft copolymerization of acrylic acid onto polyamide fibers
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Graft copolymerization of acrylic acid onto polyamide fibers

机译：丙烯酸在聚酰胺纤维上的接枝共聚

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摘要

The grafting of acrylic acid (AA) monomer (CH_2=CH-COOH) on polyamide 6.6 monofilaments (PA 6.6) using benzoyl peroxide (BPO) as initiator was carried out in order to enhance the hydrophilic nature of fibers. The grafting rate depends on the AA concentration, the BPO concentration, the time and the temperature of reaction.rnThe best conditions for optimum rate of grafting were obtained with a AA concentration of 0.5 M, a BPO concentration of 0.03 M, a reaction temperature of T= 85 ℃ and a reaction time of 120 mn.rnThe fiber surface has been investigated by many experimental techniques of characterization such as Fourier transform infrared spectroscopy (FTIR), calorimetric analysis (DSC), scanning electron microscopy (SEM), and contact angle measurements.rnThe effect of grafting of acrylic acid onto PA 6.6 fibers on their moisture and mechanical resistances was analyzed from water sorption and elongation at break measurements.rnThe analysis of the experimental data shows clearly the efficiency of the grafting reaction used, leading to a significant increase of the hydrophilic character of the PA 6.6 surface.
机译：为了增强纤维的亲水性，进行了以过氧化苯甲酰（BPO）为原料的聚酰胺6.6单丝（PA 6.6）上的丙烯酸（AA）单体（CH_2 = CH-COOH）的接枝。接枝率取决于AA浓度，BPO浓度，反应时间和反应温度。rn最佳接枝率的最佳条件是AA浓度为0.5 M，BPO浓度为0.03 M，反应温度为0.5M。 T = 85℃，反应时间为120mn。rn已通过许多表征技术的实验技术对纤维表面进行了研究，如傅立叶变换红外光谱（FTIR），量热分析（DSC），扫描电子显微镜（SEM）和接触角从断裂测量中的吸水率和伸长率分析了PA 6.6纤维上丙烯酸接枝对其水分和机械阻力的影响。对实验数据的分析清楚地表明了所用接枝反应的效率，从而显着提高了接枝率。增强PA 6.6表面的亲水性。

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