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首页> 外文期刊>Cellulose >Cotton fabrics modified with Si@ hyperbranched poly(amidoamine): their salt-free dyeing properties and thermal behaviors
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Cotton fabrics modified with Si@ hyperbranched poly(amidoamine): their salt-free dyeing properties and thermal behaviors

机译：用Si @超支化聚（amidoamine）改性棉织物：它们的无盐染色性能和热行为

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摘要

Cotton fabrics are usually modified with hyperbranched polymers or silica sol solely. The finishing agents that possess the property of hyperbranched polymers and silica sol at same time and in same substance are seldom. In this paper, organosilicon loaded hyperbranched poly(amidoamine) (Si@ PAMAM) was synthesized and its structure was confirmed by H-1 NMR and FT IR, the cotton fabrics were modified with Si@ PAMAM by sol-gel process. The modification effects were tested by FT IR and SEM, the salt-free dyeing properties and thermal behaviors were investigated as well. The results indicated that Si@ PAMAM graft could impart cotton fabrics salt free dyeing property. After dyed with salt free dyeing process, the color fastness, levelling property and washing endurance of grafted cotton fabrics were good. The TGA analysis showed the temperature interval of the maximum mass loss rate of modified cotton was 33 degrees C higher than that of blank cotton, this means the Si@ PAMAM modification can improve the heat stability of cotton fabric. The SEM demonstrated that Si@ PAMAM gel deposited on the surface of fibers well.
机译：棉织物通常只用超支化聚合物或硅溶胶进行改性。同时具有超支化聚合物和硅溶胶性质且在同一物质中的整理剂很少。本文合成了有机硅负载超支化聚酰胺（Si@PAMAM），并用H-1核磁共振和FT-IR对其结构进行了表征，采用溶胶-凝胶法对棉织物进行了改性。通过FT-IR和SEM测试了改性效果，并对改性后的无盐染色性能和热性能进行了研究。结果表明，Si@PAMAM接枝可赋予棉织物无盐染色性能。接枝棉织物经无盐染色后，色牢度、匀染性和耐洗性良好。TGA分析表明，改性棉的最大质量损失率的温度区间比空白棉高33℃，这意味着Si@PAMAM改性可以提高棉织物的热稳定性。扫描电镜显示，Si@PAMAM凝胶在纤维表面沉积良好。

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