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菠萝叶纤维制备纳米纤维素晶体的研究

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菠萝叶纤维制备纳米纤维素晶体的研究

陈红莲高天明郑龙廖建和黄茂芳

Preparation of Nano-crystalline Cellulose from Pineapple Leaf Fiber

CHEN Honglian GAO Tianming ZHENG Long LIAO Jianhe HUANG Maofang

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菠萝叶纤维经过氢氧化钠预处理、硫酸水解制备得到纳米纤维素晶体（NCC），再用扫描电镜（SEM）、傅立叶转换红外光谱仪（FTIR）、热重（TG）分析仪和X-射线衍射分析仪（XRD）对其结构和性能进行表征和分析。结果表明，NCC晶体颗粒尺寸为30~50 nm；红外光谱证明非纤维素部分有效去除；NCC晶型仍属于纤维素I，结晶度从75.9％提高到87.5％；比起原纤维，NCC的降解温度明显降低。

Abstract

Pineapple leaf fiber（PALF）was pretreated by sodium hydroxide, and hydrolyzed by sulfuric acid, then the nano-crystalline cellulose（NCC）was gotten. We characterized the structure and properties of NCC by SEM, FTIR, TG and XRD. The results showed that the size of NCC is 30～50 nm, non-cellulose was eliminated effectively, crystalline cellulose type of NCC is cellulose I, degree of crystallinity rises from 75.9% to 87.5%, and compared to the original fiber, the degradation temperature decreases clearly.

关键词

菠萝叶纤维 /纳米纤维素晶体 /制备 /表征{{custom_keyword}} /

Key words

Pineapple leaf fiber /Nano-crystalline cellulose /Preparation /Characterization{{custom_keyword}} /

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陈红莲高天明郑龙廖建和黄茂芳.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

CHEN Honglian GAO Tianming ZHENG Long LIAO Jianhe HUANG Maofang.Preparation of Nano-crystalline Cellulose from Pineapple Leaf Fiber[J]. Chinese Journal of Tropical Crops, 2012, 33(1): 153-156