木质素接枝改性影响因素的研究
STUDIES ON THE EFFECTING FACTORS OF THE GRAFT REACTION OF LIGNIN MODIFICATION
-
摘要: 对碱法麦草制浆黑液酸法回收的木质素与丙烯酰胺接枝共聚反应进行了试验研究.结果表明,接枝共聚反应的适宜条件为:丙烯酰胺单体用量1.0mol·1-1,过硫酸钾引发剂浓度1.0×10-2mol·1-1,反应温度70℃,固液比1:50(W/W),反应时间4h.木质素与木质素接枝聚合物以及聚丙烯酰胺的红外光谱表明,木质素与丙烯酰胺之间发生了接枝共聚反应.Abstract: Study on the effecting factors of the graft reaction of lignin from treating paper-pulping black liquor in acidification with acrylamide was accomplished. The results showed that the feasible conditions were 1.0 mol·1-1 of the acrylamide and 1.0×10 mol·1-1 of the initiating agent and 70℃ of the reaction temperature and 1:50 about the solid-liquor ratio (W/W) and the 4h on the reaction time. The infrared absorption spectrums of the lignin, the lignin copolymer with acrylamide and polyacrylamide confirmed that the graft reaction of the lignin with acrylamide was accomplished.
-
Key words:
- lignin /
- paper-pulping black liquor /
- acrylamide /
- graft copolymer
-
[1] 穆环珍,黄衍初,杨问波等,碱法蔗渣制浆黑液木质素磺化反应研究[J] .环境化学,2003,22(4)∶377-379
[2] 穆环珍,杨问波,黄衍初,造纸黑液木质素利用研究进展[J] .环境污染治理技术与设备,2001,2(3)∶26-30
[3] 陈克利,任承霞,石疏兰等,桦木硫酸盐木素的改性及树脂的合成研究[J] .环境化学,1999,18(5):464-470
[4] Meister J J,Patie D R,Properties and Application of Lignin-Acrylamide Graft Copolymer.J. Appl. Polym. Sci.,1984,29(11)∶ 3456-3477
[5] 雷中方,陆雍森,木质素与丙烯酰胺的接枝改性及产物水处理性能[J] .化学世界,1998,39(11)∶585-589
[6] 穆环珍,杨问波,姚春丽等,碱法造纸制浆黑液良性循环处理技术研究[J] .环境保护,2000,(6)∶14-16
[7] 刘千钧,詹怀宇,刘明华,木质素磺酸镁接枝丙烯酰胺的影响因素[J] .化学研究与应用,2003,15(5)∶737-739
计量
- 文章访问数: 555
- HTML全文浏览数: 555
- PDF下载数: 253
- 施引文献: 0