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.
作者
王聪聪
梁华
胡晓阳
伍丽琼
方丹丹
WANG Congcong;LIANG Hua;HU Xiaoyang;WU Liqiong;FANG Dandan(College of Textile and Clothing,Xinjiang University,Urumqi 830046,China)
出处
《上海纺织科技》
北大核心
2019年第3期30-32,共3页
Shanghai Textile Science & Technology
关键词
荨麻纤维
丙烯酸
接枝共聚
浓度
反应时间
温度
接枝率
nettle fiber
acrylic acid
gracopoly merization
concentration
reaction time
temperature
grafting rate
