氯化血红素/菠萝叶纤维改性材料的制备及表征
|
摘要
以菠萝叶纤维为原料,在氢氧化钠预处理后,通过酯化反应制备氯化血红素/菠萝叶纤维改性材料。采用氯化血红素对菠萝叶纤维进行改性,考察了氯化血红素质量浓度、接枝温度、反应时间对接枝率的影响,确定较佳接枝条件为氯化血红素质量浓度为1.0g/L、反应时间2h、接枝温度40℃。通过扫描电镜、红外光谱、X射线衍射及热重分析等,对菠萝叶纤维改性前后结构和性能进行表征。结果表明,改性纤维表面已接枝了氯化血红素,且半纤维素被去除;改性纤维仍属于Ⅰ型纤维素,结晶度由65.0%提高到74.3%,改性纤维的热稳定性降低。
Pineapple leaf fiber was used as raw material to prepare materials modified with hemin/pineapple leaf fiber by esterification after sodium hydroxide pretreatment.Hemin was used to modify pineapple leaf fiber.The effects of hemin mass concentration,grafting temperature and grafting time on grafting rate were investigated.The optimal grafting conditions were confirmed as follows:mass concentration of hemin 1.0 g/L,grafting time 2h,and grafting temperature 40 ℃.The structures and thermal properties of modified pineapple leaf fiber were characterized by scanning electron microscopy,Fourier transform infrared spectroscopy,X-ray diffractometer and thermogravimetric analysis.The results showed that hemin was grafted on the surface of the fiber and hemicellulose was removed.The crystal structure of modified fiber still belonged to cellulose Ⅰand the crystallinity increased from 65.0%to 74.3%.The thermal stability of the modified fiber decreased.
Pineapple leaf fiber was used as raw material to prepare materials modified with hemin/pineapple leaf fiber by esterification after sodium hydroxide pretreatment.Hemin was used to modify pineapple leaf fiber.The effects of hemin mass concentration,grafting temperature and grafting time on grafting rate were investigated.The optimal grafting conditions were confirmed as follows:mass concentration of hemin 1.0 g/L,grafting time 2h,and grafting temperature 40 ℃.The structures and thermal properties of modified pineapple leaf fiber were characterized by scanning electron microscopy,Fourier transform infrared spectroscopy,X-ray diffractometer and thermogravimetric analysis.The results showed that hemin was grafted on the surface of the fiber and hemicellulose was removed.The crystal structure of modified fiber still belonged to cellulose Ⅰand the crystallinity increased from 65.0%to 74.3%.The thermal stability of the modified fiber decreased.
引文
[1]郁崇文,张元明,姜繁昌,等.菠萝纤维的纺纱工艺研究[J].纺织学报,2000,21(6):352-354.
[2]刘恩平,郭安平,郭运玲,等.菠萝叶纤维的开发与应用现状及前景[J].纺织导报,2006(2):32-35.
[3]郭爱莲.菠萝叶纤维的性能及应用[J].山东纺织科技,2005,46(6):49-51.
[4]欧忠庆,王金丽,黄晖,等.螺杆式菠萝叶纤维打包机的研制[J].农机化研究,2006(3):99-100.
[5]MOHAMED A R,SAPUAN S M,KHALINA A.Selected properties of hand-laid and compression molded vinyl ester and pineapple leaf fiber(PALF)-reinforced vinyl ester composites[J].Bulletin of the Society of Psychologists in Addictive Behaviors,2010,5:91-94.
[6]王金丽,蒋建敏,连文伟,等.菠萝叶纤维抗菌机理的初步研究[J].热带作物学报,2009,30(11):1694-1697.
[7]汪泽,崔丽虹,唐冰,等.响应面法优化菠萝叶纤维多酚提取工艺[J].食品工业科技,2017,38(1):219-223.
[8]王君,陈红亮,张向东,等.氯化血红素提取新工艺的研究[J].当代化工,2001,20(3):125-127.
[9]李臻,景震强,夏春谷.金属卟啉配合物的催化氧化应用研究进展[J].有机化学,2007,27(1):34-44.
[10]周贤太,纪红兵,裴丽霞,等.金属卟啉催化剂应用于均相氧化反应的研究进展[J].有机化学,2007,27(9):1039-1049.
[11]黄涛,蒋建敏,王金丽,等.菠萝叶纤维结构及其热力学性能研究[J].上海纺织科技,2009,37(10):9-12.
[12]牛梅.抗菌羊毛纤维制备及其结构与性能研究[D].太原:太原理工大学,2009.
[13]刘潇,董海洲,侯汉学.花生壳纳米纤维素的制备与表征[J].现代食品科技,2015(3):172-176.
[14]连文伟,张劲,刘恩平,等.脱胶方法对菠萝叶纤维结构和性能的影响[J].上海纺织科技,2011,39(4):56-59.
[15]黄志成.菠萝叶纳米纤维素/壳聚糖复合膜的制备及其性能研究[D].湛江:广东海洋大学,2014.
[16]SENA NETO A R,MAM A,FVD S,et al.Characterization and comparative evaluation of thermal,structural,chemical,mechanical and morphological properties of six pineapple leaf fiber varieties for use in composites[J].Industrial Crops&Products,2013,43(2):529-537.
[17]沈海蓉,刘洪玲,于伟东.苎麻纤维接枝氯化血红素工艺研究[J].东华大学学报(自然科学版),2009,35(5):531-536.
[18]GARSIDE P,WYETH P.Identification of cellulosic fibres by FTIR spectroscopy:thread and single fibre analysis by attenuated total reflectance[J].Studies in Conservation,2003,48(4):269-275.
[19]陈红莲,高天明,郑龙,等.菠萝叶纤维制备纳米纤维素晶体的研究[J].热带作物学报,2012,33(1):153-156.
[20]O’SULLIVAN A C.Cellulose:the structure slowly unravels[J].Cellulose,1997,4(3):173-207.
[21]MOHAMED A R,SAPUAN S M,SHAHJAHANM,et al.Characterization of pineapple leaf fibers from selected Malaysian cultivars[J].Journal of Food Agriculture&Environment,2009,7(1):235-240.
[2]刘恩平,郭安平,郭运玲,等.菠萝叶纤维的开发与应用现状及前景[J].纺织导报,2006(2):32-35.
[3]郭爱莲.菠萝叶纤维的性能及应用[J].山东纺织科技,2005,46(6):49-51.
[4]欧忠庆,王金丽,黄晖,等.螺杆式菠萝叶纤维打包机的研制[J].农机化研究,2006(3):99-100.
[5]MOHAMED A R,SAPUAN S M,KHALINA A.Selected properties of hand-laid and compression molded vinyl ester and pineapple leaf fiber(PALF)-reinforced vinyl ester composites[J].Bulletin of the Society of Psychologists in Addictive Behaviors,2010,5:91-94.
[6]王金丽,蒋建敏,连文伟,等.菠萝叶纤维抗菌机理的初步研究[J].热带作物学报,2009,30(11):1694-1697.
[7]汪泽,崔丽虹,唐冰,等.响应面法优化菠萝叶纤维多酚提取工艺[J].食品工业科技,2017,38(1):219-223.
[8]王君,陈红亮,张向东,等.氯化血红素提取新工艺的研究[J].当代化工,2001,20(3):125-127.
[9]李臻,景震强,夏春谷.金属卟啉配合物的催化氧化应用研究进展[J].有机化学,2007,27(1):34-44.
[10]周贤太,纪红兵,裴丽霞,等.金属卟啉催化剂应用于均相氧化反应的研究进展[J].有机化学,2007,27(9):1039-1049.
[11]黄涛,蒋建敏,王金丽,等.菠萝叶纤维结构及其热力学性能研究[J].上海纺织科技,2009,37(10):9-12.
[12]牛梅.抗菌羊毛纤维制备及其结构与性能研究[D].太原:太原理工大学,2009.
[13]刘潇,董海洲,侯汉学.花生壳纳米纤维素的制备与表征[J].现代食品科技,2015(3):172-176.
[14]连文伟,张劲,刘恩平,等.脱胶方法对菠萝叶纤维结构和性能的影响[J].上海纺织科技,2011,39(4):56-59.
[15]黄志成.菠萝叶纳米纤维素/壳聚糖复合膜的制备及其性能研究[D].湛江:广东海洋大学,2014.
[16]SENA NETO A R,MAM A,FVD S,et al.Characterization and comparative evaluation of thermal,structural,chemical,mechanical and morphological properties of six pineapple leaf fiber varieties for use in composites[J].Industrial Crops&Products,2013,43(2):529-537.
[17]沈海蓉,刘洪玲,于伟东.苎麻纤维接枝氯化血红素工艺研究[J].东华大学学报(自然科学版),2009,35(5):531-536.
[18]GARSIDE P,WYETH P.Identification of cellulosic fibres by FTIR spectroscopy:thread and single fibre analysis by attenuated total reflectance[J].Studies in Conservation,2003,48(4):269-275.
[19]陈红莲,高天明,郑龙,等.菠萝叶纤维制备纳米纤维素晶体的研究[J].热带作物学报,2012,33(1):153-156.
[20]O’SULLIVAN A C.Cellulose:the structure slowly unravels[J].Cellulose,1997,4(3):173-207.
[21]MOHAMED A R,SAPUAN S M,SHAHJAHANM,et al.Characterization of pineapple leaf fibers from selected Malaysian cultivars[J].Journal of Food Agriculture&Environment,2009,7(1):235-240.