纳米微晶纤维素的制备及其在拒水整理中的应用

纺织学报 ›› 2016, Vol. 37 ›› Issue (06): 1-6.

• 纤维材料 • 下一篇

纳米微晶纤维素的制备及其在拒水整理中的应用

收稿日期:2015-07-10 修回日期:2015-09-28 出版日期:2016-06-15 发布日期:2016-06-17

Preparation of nanocrystalline cellulose and application on water repellent finishing

Received:2015-07-10 Revised:2015-09-28 Online:2016-06-15 Published:2016-06-17

摘要/Abstract

摘要：

为了开发一种无氟环保的拒水整理方法，采用酸解法制备纳米微晶纤维素（NCC），并将其协同有机硅拒水剂二浴法整理棉织物。优化了NCC制备条件，并通过红外光谱、X射线衍射、热失重等测试手段对其结构及热性能进行分析；探讨了NCC粒径及整理工艺参数对有机硅拒水剂拒水效果的影响。结果表明，NCC最佳的制备范围为：H2SO4质量分数为60%-65%，温度为40-50℃，反应时间为2-3h；NCC协同有机硅拒水整理时，当NCC粒径在260nm时，织物拒水效果明显提高，达到95分以上，经扫描电镜观察，NCC在织物表面形成粗糙结构。NCC协同有机硅拒水整理最佳工艺参数为：NCC烘干时间180s、拒水整理焙烘时间90s、焙烘温度160℃。

关键词: 纳米微晶纤维素, 酸解法, 拒水整理, 有机硅

Abstract:

Nano-crystalline cellulose (NCC) was prepared by acid hydrolysis and cooperated with organo-silicon on cotton fabric for water-repellent finishing by two-bath process in order to develop a fluorine-free and eco-friendly water-repellent finishing method. The preparation condition of NCC was optimized. Structure and property of NCC were charactered by FT-IR, X-ray diffraction and thermogravimetry. Influence of particle size of NCC and parameters of finishing on water repellency were discussed. The results indicate that optimized preparation condition of NCC is: H2SO4 concentration is 60 wt% to 65wt%, temperature is 40-50℃ and acid hydrolysis time is 2 to3 h. NCC of 220 nm cooperated with organo- silicon water repellent finishing agents can increase water-repellency grade from 85 marks to 95marks. The photo of SEM proves that rough structure on the surface of finished fabric has formed. When NCC is used in water repellent finishing cooperated with organo-silicon, the optimized parameters of finishing are: drying time of NCC is 180s, curing time of water repellent finishing is 90s, curing temperature is 160℃.

Key words: nano-crystalline cellulose, acid hydrolysis method, water-repellent finishing, organo- silicon

明悦陈英车迪. 纳米微晶纤维素的制备及其在拒水整理中的应用[J]. 纺织学报, 2016, 37(06): 1-6.

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纳米微晶纤维素的制备及其在拒水整理中的应用

Preparation of nanocrystalline cellulose and application on water repellent finishing

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