Preparation and characterization of the nanocellulose/polyurethane films

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题名:	Preparation and characterization of the nanocellulose/polyurethane films
作者:	Lai, CC (Lai, Chiu-Chun) Shih, PY (Shih, Pei-Yun) Chu, GY (Chu, Guan-Yu) Sung, YC (Sung, Yi-Ching)
贡献者:	紡工系
关键词:	Nanocellulose (NC) bacterial cellulose acid hydrolysis TEMPO oxidation
日期:	2020-03-30
上传时间:	2020-11-30 14:57:24 (UTC+8)
摘要:	In this research, we make the nanocellulose (NC) using acid hydrolysis and 2,2,6,6-Tetramethylpiperidine-1-oxyl (TEMPO) method from bacterial cellulose (BC), dispersed in water, incorporated into polyurethane (PU) resin, prepared the composed film and characterized by scanning electronic microscopy (SEM), tensile test, and Thermogravimetric analysis (TGA). The NC is introduced into the PU resin by physical means to increase the physical and chemical properties of the waterborne PU. First, the morphological properties of NC, measured by SEM images, tensile test and thermal properties were measured. The results indicated morphological properties in using different preparation methods for the NC were different. The morphological NC prepared by the acid hydrolysis method is a short rod; by the TEMPO method, is a filament. Successfully improved the water-resistance of the waterborne PU films. Depending on the type of resin used, the tensile properties of NC/PU composite films have a different. Compared to pure PU film, the nanocomposites presented thermal stability increases. The addition of NC composite film of NC/w-436 has the maximum elongation when NC is added to 3%. The composite film of NC/w-460 has the maximum elongation when NC is added to 20%.
關聯:	MODERN PHYSICS LETTERS B 卷冊: 34 期: 7-9 特刊: SI 文獻號碼: 2040007
显示于类别:	[紡織工程學系] 期刊論文

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