氯化血红素/菠萝叶纤维改性材料的制备及表征  

Preparation and Characterization of Materials Modified with Hemin/Pineapple Leaf Fiber

作　　者：黄杰 魏晓奕[2] 崔丽虹[2] 李积华[2] 李明福[3] HUANG Jie;WEI Xiaoyi;CUI Lihong;LI Jihua;LI Mingfu(College of Food Science and Technology,Huazhong Agricultural University,Wuhan 430070,China;Agriculture Products Processing Research Institute,Chinese Aacdemy of Tropical AgriculturalSciences,Zhanjiang 524091,China;Agricultural Machinery Research Institute, Chinese Academy of Tropical Agricultural Sciences,Zhanjiang 524001,China)

机构地区：[1]华中农业大学食品科技学院,武汉430070 [2]中国热带农业科学院农产品加工研究所,广东湛江524001 [3]中国热带农业科学院农业机械研究所,广东湛江524091

出　　处：《现代纺织技术》2018年第6期23-28,共6页Advanced Textile Technology

基　　金：中国热带农业科学院中央级公益性科研院所基本科研业务费专项(1630122017018);海南省自然科学基金项目(20165205);广东省自然科学基金项目(2016A030307001)

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 2 h,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 celluloseⅠand the crystallinity increased from 65.0%to 74.3%.The thermal stability of the modified fiber decreased.

关 键 词：菠萝叶纤维 氯化血红素 改性纤维 

分 类 号：TS102.6[轻工技术与工程—纺织工程]