丙烯酸单体接枝改性荨麻纤维
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摘要
采用丙烯酸单体和氧化还原体系接枝改性荨麻纤维。利用扫描电镜、红外光谱对荨麻纤维的表面形貌、化学结构等进行表征,研究了丙烯酸浓度、氧化还原体系浓度、时间、温度对接枝率的影响。SEM图显示,改性后荨麻纤维的表面变得粗糙,FT-IR谱图在1 718 cm~(-1)处增加了-C=O特征吸收峰,表明纤维接枝共聚物接枝成功。在硫代硫酸钠质量/L,温度50℃,接枝改性5 h时,接枝率较佳,约为3.6%。
Nettle fiber is grafted with acrylic monomer and redox system. The surface morphology and chemical structure of nettle fiber are characterized by SEM and IR, and the effects of the concentration of acrylic acid, the concentration of redox system, time and temperature on the grafting rate are studied. The SEM images show that the surface of the modified nettle fiber is coarse, and the-C = O characteristic absorption peak is added at the 1 718 cm~(-1) by FT-IR spectra, which indicates that graft copolymer is successful. The grafting rate(3.6%) is better when the sodium thiosulfate concentration is 60 g/L, ammonium persulfate concentration is 2 g/L, acrylic acid concentration is 2 mol/L, temperature is 50℃ and grafting modification time is 5 h.
Nettle fiber is grafted with acrylic monomer and redox system. The surface morphology and chemical structure of nettle fiber are characterized by SEM and IR, and the effects of the concentration of acrylic acid, the concentration of redox system, time and temperature on the grafting rate are studied. The SEM images show that the surface of the modified nettle fiber is coarse, and the-C = O characteristic absorption peak is added at the 1 718 cm~(-1) by FT-IR spectra, which indicates that graft copolymer is successful. The grafting rate(3.6%) is better when the sodium thiosulfate concentration is 60 g/L, ammonium persulfate concentration is 2 g/L, acrylic acid concentration is 2 mol/L, temperature is 50℃ and grafting modification time is 5 h.
引文
[1]郭嫣,武海良,孙小寅.荨麻纤维可纺性能的分析研究[J].西安工程科技学院学报,2006(2):139-142.
[2]郭嫣,武海良,孙小寅,等.荨麻纤维的性能分析[J].纺织学报,2005,26(4):27-28.
[3]高洁,魏玉玉,姜楠,等.亚麻短纤维接枝改性及其可纺性研究[J].染整技术,2013(7):29-31.
[4]沈克群.苎麻纤维碱改性对改善其可纺性与服用性的研究[J].科技创新与应用,2016(2):74-75.
[5]张玉柱.罗布麻纤维的改性及纺纱性能研究[D].芜湖:安徽工程大学,2012.
[6]张琳.纤维素纤维的接枝共聚改性[J].人造纤维,2016(1):26-28.
[2]郭嫣,武海良,孙小寅,等.荨麻纤维的性能分析[J].纺织学报,2005,26(4):27-28.
[3]高洁,魏玉玉,姜楠,等.亚麻短纤维接枝改性及其可纺性研究[J].染整技术,2013(7):29-31.
[4]沈克群.苎麻纤维碱改性对改善其可纺性与服用性的研究[J].科技创新与应用,2016(2):74-75.
[5]张玉柱.罗布麻纤维的改性及纺纱性能研究[D].芜湖:安徽工程大学,2012.
[6]张琳.纤维素纤维的接枝共聚改性[J].人造纤维,2016(1):26-28.